9+0x1f0/0x1f0
[  189.657735]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  189.663271]  ? fput+0x130/0x1a0
[  189.666570]  ? __bpf_prog_get+0x9b/0x290
[  189.670641]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  189.675493]  ? bpf_prog_test_run+0x130/0x1a0
[  189.679905]  ? __x64_sys_bpf+0x3db/0x520
[  189.683965]  ? bpf_prog_get+0x20/0x20
[  189.687802]  ? do_syscall_64+0x1b9/0x820
[  189.691879]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  189.697242]  ? syscall_return_slowpath+0x5e0/0x5e0
[  189.702174]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  189.707020]  ? trace_hardirqs_on_caller+0x310/0x310
[  189.712040]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  189.717076]  ? prepare_exit_to_usermode+0x291/0x3b0
[  189.722098]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  189.726948]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  189.732331] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  189.732336] warn_alloc_show_mem: 1 callbacks suppressed
[  189.732343] Mem-Info:
[  189.739352] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  189.744732] active_anon:57128 inactive_anon:971 isolated_anon:0
[  189.744732]  active_file:40 inactive_file:20 isolated_file:0
[  189.744732]  unevictable:0 dirty:11 writeback:0 unstable:0
[  189.744732]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  189.744732]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  189.744732]  free:13615 free_pcp:64 free_cma:0
[  189.747103] Call Trace:
[  189.756767] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  189.789694]  <IRQ>
[  189.792260] 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
[  189.820186]  dump_stack+0x244/0x39d
[  189.822308] lowmem_reserve[]: 0 2818 6321 6321
[  189.848417]  ? dump_stack_print_info.cold.1+0x20/0x20
[  189.852016] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  189.856601]  warn_alloc.cold.116+0xb7/0x1bd
[  189.861756] lowmem_reserve[]: 0 0 3503 3503
[  189.889245]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  189.893539] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  189.897851]  ? lock_downgrade+0x900/0x900
[  189.902669] lowmem_reserve[]: 0 0 0 0
[  189.931814]  ? trace_hardirqs_off+0xb8/0x310
[  189.935936] 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
[  189.939729]  ? trace_hardirqs_off+0xb8/0x310
[  189.944108] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  189.957637]  __alloc_pages_slowpath+0x2651/0x2de0
[  189.962020] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  189.977127]  ? warn_alloc+0x120/0x120
[  189.981930] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  189.997436]  ? print_usage_bug+0xc0/0xc0
[  190.001213] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  190.010031]  ? warn_alloc+0x120/0x120
[  190.014065] 5171 total pagecache pages
[  190.022639]  ? warn_alloc+0x120/0x120
[  190.026423] 0 pages in swap cache
[  190.030298]  ? print_usage_bug+0xc0/0xc0
[  190.034091] Swap cache stats: add 0, delete 0, find 0/0
[  190.037545]  ? print_usage_bug+0xc0/0xc0
[  190.041582] Free swap  = 0kB
[  190.046940]  ? __lock_acquire+0x62f/0x4c20
[  190.050972] Total swap = 0kB
[  190.053989]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  190.058194] 1965979 pages RAM
[  190.061210]  ? should_fail+0x22d/0xd01
[  190.066719] 0 pages HighMem/MovableOnly
[  190.069815]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  190.073680] 342854 pages reserved
[  190.077664]  ? __lock_acquire+0x62f/0x4c20
[  190.082742] 0 pages cma reserved
[  190.086227]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  190.090495] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  190.093783]  ? __lock_acquire+0x62f/0x4c20
[  190.093799]  ? should_fail+0x22d/0xd01
[  190.098930] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  190.105358]  ? find_held_lock+0x36/0x1c0
[  190.109570] syz-executor2 cpuset=syz2 mems_allowed=0
[  190.113454]  ? mark_held_locks+0x130/0x130
[  190.137293]  ? mark_held_locks+0x130/0x130
[  190.141522]  ? zap_class+0x640/0x640
[  190.145234]  ? zap_class+0x640/0x640
[  190.148960]  ? print_usage_bug+0xc0/0xc0
[  190.153017]  ? do_raw_spin_unlock+0xa7/0x330
[  190.157425]  ? zap_class+0x640/0x640
[  190.161138]  ? print_usage_bug+0xc0/0xc0
[  190.165200]  ? wq_watchdog_touch+0x9c/0xfe
[  190.169467]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  190.175009]  ? check_preemption_disabled+0x48/0x280
[  190.180034]  ? __lock_is_held+0xb5/0x140
[  190.184100]  __alloc_pages_nodemask+0xad8/0xea0
[  190.188769]  ? zap_class+0x640/0x640
[  190.192489]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  190.197519]  ? find_held_lock+0x36/0x1c0
[  190.201590]  ? ____cache_alloc_node+0x1c7/0x1e0
[  190.206260]  ? lock_downgrade+0x900/0x900
[  190.210416]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  190.215955]  cache_grow_begin+0xa5/0x8c0
[  190.220014]  ? do_raw_spin_unlock+0xa7/0x330
[  190.224428]  fallback_alloc+0x204/0x2e0
[  190.228407]  ____cache_alloc_node+0x1c7/0x1e0
[  190.232905]  kmem_cache_alloc_node+0xe3/0x730
[  190.237400]  ? ipv6_get_ifaddr+0x42e/0x620
[  190.241645]  __alloc_skb+0x119/0x770
[  190.245370]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  190.250654]  ? netdev_alloc_frag+0x1f0/0x1f0
[  190.255066]  ? lock_downgrade+0x900/0x900
[  190.259219]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  190.264752]  ? refcount_sub_and_test_checked+0x203/0x310
[  190.270201]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  190.275659]  ? addrconf_rs_timer+0x690/0x690
[  190.280086]  ndisc_alloc_skb+0x144/0x340
[  190.284156]  ndisc_send_rs+0x331/0x6e0
[  190.288048]  addrconf_rs_timer+0x314/0x690
[  190.292334]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  190.296575]  call_timer_fn+0x272/0x920
[  190.300476]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  190.304714]  ? process_timeout+0x40/0x40
[  190.308787]  ? mark_held_locks+0xc7/0x130
[  190.312939]  ? _raw_spin_unlock_irq+0x27/0x80
[  190.317433]  ? _raw_spin_unlock_irq+0x27/0x80
[  190.321926]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  190.326168]  ? lockdep_hardirqs_on+0x296/0x5b0
[  190.330769]  ? trace_hardirqs_on+0xbd/0x310
[  190.335122]  ? kasan_check_read+0x11/0x20
[  190.339272]  ? __run_timers+0x7da/0xc70
[  190.343250]  ? trace_hardirqs_off_caller+0x310/0x310
[  190.348383]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  190.352634]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  190.356868]  __run_timers+0x7e5/0xc70
[  190.360680]  ? timer_fixup_init+0x70/0x70
[  190.364830]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  190.369848]  ? zap_class+0x640/0x640
[  190.373569]  ? print_usage_bug+0xc0/0xc0
[  190.377643]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  190.382846]  ? find_held_lock+0x36/0x1c0
[  190.386915]  ? zap_class+0x640/0x640
[  190.390640]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  190.396180]  ? check_preemption_disabled+0x48/0x280
[  190.401236]  ? __lock_is_held+0xb5/0x140
[  190.405313]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  190.410862]  ? check_preemption_disabled+0x48/0x280
[  190.415889]  run_timer_softirq+0x52/0xb0
[  190.419952]  ? rcu_read_lock_sched_held+0x14f/0x180
[  190.424969]  __do_softirq+0x308/0xb7e
[  190.428794]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  190.433303]  ? lock_downgrade+0x900/0x900
[  190.437452]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  190.442564]  ? pvclock_read_flags+0x160/0x160
[  190.447071]  ? lapic_next_event+0x5a/0x90
[  190.451221]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  190.456770]  ? kvm_clock_read+0x18/0x30
[  190.460744]  ? kvm_sched_clock_read+0x9/0x20
[  190.465163]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  190.470703]  ? check_preemption_disabled+0x48/0x280
[  190.475739]  irq_exit+0x17f/0x1c0
[  190.479228]  smp_apic_timer_interrupt+0x1cb/0x760
[  190.484068]  ? smp_reschedule_interrupt+0x109/0x650
[  190.489081]  ? smp_call_function_single_interrupt+0x650/0x650
[  190.494963]  ? interrupt_entry+0xb5/0xc0
[  190.499030]  ? trace_hardirqs_off_caller+0xbb/0x310
[  190.504045]  ? trace_hardirqs_off_caller+0xbb/0x310
[  190.509061]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  190.513902]  ? trace_hardirqs_on_caller+0x310/0x310
[  190.518919]  ? trace_hardirqs_on_caller+0x310/0x310
[  190.523935]  ? task_prio+0x50/0x50
[  190.527474]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  190.533012]  ? check_preemption_disabled+0x48/0x280
[  190.538047]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  190.542894]  apic_timer_interrupt+0xf/0x20
[  190.547138]  </IRQ>
[  190.549379] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  190.554566] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  190.573465] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  190.581185] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  190.588450] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  190.595730] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  190.602997] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  190.610275] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  190.617575]  retint_kernel+0x1b/0x2d
[  190.621290] RIP: 0010:dump_stack+0x358/0x39d
[  190.625691] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  190.644600] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  190.652312] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  190.659572] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  190.666837] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  190.674159] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  190.681436] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  190.688733]  ? dump_stack+0x34f/0x39d
[  190.692545]  ? dump_stack_print_info.cold.1+0x20/0x20
[  190.697754]  ? mark_held_locks+0x130/0x130
[  190.701986]  ? mark_held_locks+0x130/0x130
[  190.706225]  dump_header+0x27b/0xf72
[  190.709968]  ? pagefault_out_of_memory+0x197/0x197
[  190.714906]  ? __lock_acquire+0x62f/0x4c20
[  190.719142]  ? print_usage_bug+0xc0/0xc0
[  190.723223]  ? zap_class+0x640/0x640
[  190.726938]  ? print_usage_bug+0xc0/0xc0
[  190.730998]  ? print_usage_bug+0xc0/0xc0
[  190.735064]  ? print_usage_bug+0xc0/0xc0
[  190.739130]  ? find_held_lock+0x36/0x1c0
[  190.743223]  ? mark_held_locks+0xc7/0x130
[  190.747372]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  190.752472]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  190.758074]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  190.762667]  ? trace_hardirqs_on+0xbd/0x310
[  190.766986]  ? kasan_check_read+0x11/0x20
[  190.771134]  ? ___ratelimit+0x3b4/0x672
[  190.775109]  ? trace_hardirqs_off_caller+0x310/0x310
[  190.780213]  ? trace_hardirqs_on+0x310/0x310
[  190.784630]  ? lock_downgrade+0x900/0x900
[  190.788786]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  190.793892]  ? ___ratelimit+0x3b9/0x672
[  190.797881]  ? idr_get_free+0xf70/0xf70
[  190.801871]  ? kasan_check_read+0x11/0x20
[  190.806064]  ? do_raw_spin_unlock+0xa7/0x330
[  190.810479]  oom_kill_process.cold.27+0x10/0x903
[  190.815243]  ? zap_class+0x640/0x640
[  190.818974]  ? _raw_spin_unlock+0x2c/0x50
[  190.823132]  ? oom_badness+0xe6/0xaa0
[  190.826939]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  190.831865]  ? kasan_check_read+0x11/0x20
[  190.836008]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  190.841297]  ? oom_evaluate_task+0x540/0x540
[  190.845736]  ? find_held_lock+0x36/0x1c0
[  190.849805]  ? out_of_memory+0x974/0x1430
[  190.853956]  ? lock_downgrade+0x900/0x900
[  190.858118]  ? check_preemption_disabled+0x48/0x280
[  190.863135]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  190.868072]  ? kasan_check_read+0x11/0x20
[  190.872219]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  190.877491]  ? rcu_softirq_qs+0x20/0x20
[  190.881463]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  190.886997]  ? oom_evaluate_task+0x302/0x540
[  190.891409]  out_of_memory+0xa84/0x1430
[  190.895390]  ? oom_killer_disable+0x3a0/0x3a0
[  190.899891]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  190.904825]  ? __ww_mutex_check_waiters+0x160/0x160
[  190.909866]  __alloc_pages_slowpath+0x232c/0x2de0
[  190.914731]  ? warn_alloc+0x120/0x120
[  190.918530]  ? mark_held_locks+0x130/0x130
[  190.922782]  ? find_get_entry+0xaae/0x1120
[  190.927025]  ? filemap_map_pages+0x1a20/0x1a20
[  190.931610]  ? zap_class+0x640/0x640
[  190.935340]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  190.940874]  ? check_preemption_disabled+0x48/0x280
[  190.945909]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  190.951446]  ? should_fail+0x22d/0xd01
[  190.955339]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  190.960441]  ? zap_class+0x640/0x640
[  190.964184]  ? __lock_is_held+0xb5/0x140
[  190.968253]  ? mark_held_locks+0x130/0x130
[  190.972494]  ? lock_release+0xa00/0xa00
[  190.976469]  ? perf_trace_sched_process_exec+0x860/0x860
[  190.981915]  ? xa_load+0x2ba/0x460
[  190.985455]  ? lock_downgrade+0x900/0x900
[  190.989618]  ? __might_sleep+0x95/0x190
[  190.993604]  __alloc_pages_nodemask+0xad8/0xea0
[  190.998287]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  191.003302]  ? __page_cache_alloc+0x191/0x5c0
[  191.007790]  ? xa_load+0x2e1/0x460
[  191.011331]  ? xa_clear_mark+0x40/0x40
[  191.015244]  ? zap_class+0x640/0x640
[  191.018968]  ? zap_class+0x640/0x640
[  191.022699]  ? zap_class+0x640/0x640
[  191.026427]  ? __do_page_cache_readahead+0x663/0x810
[  191.031536]  ? find_held_lock+0x36/0x1c0
[  191.035598]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  191.041155]  alloc_pages_current+0x173/0x350
[  191.045566]  __page_cache_alloc+0x38c/0x5c0
[  191.049886]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  191.054816]  ? kasan_check_read+0x11/0x20
[  191.058965]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  191.064247]  ? generic_perform_write+0x6a0/0x6a0
[  191.069006]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  191.074556]  ? check_preemption_disabled+0x48/0x280
[  191.079579]  filemap_fault+0x1595/0x25f0
[  191.083670]  ? __lock_page_or_retry+0xa00/0xa00
[  191.088345]  ? mark_held_locks+0x130/0x130
[  191.092588]  ? filemap_map_pages+0xd6b/0x1a20
[  191.097090]  ? lock_downgrade+0x900/0x900
[  191.101236]  ? check_preemption_disabled+0x48/0x280
[  191.106256]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  191.111180]  ? kasan_check_read+0x11/0x20
[  191.115324]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  191.120599]  ? rcu_softirq_qs+0x20/0x20
[  191.124591]  ? filemap_map_pages+0xd92/0x1a20
[  191.129105]  ? find_get_entries_tag+0x1400/0x1400
[  191.133950]  ? debug_object_destroy+0x2b0/0x2b0
[  191.138629]  ? lock_pi_update_atomic+0x150/0x150
[  191.143413]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  191.148958]  ? lock_acquire+0x1ed/0x520
[  191.152948]  ? ext4_filemap_fault+0x7a/0xad
[  191.157274]  ? lock_release+0xa00/0xa00
[  191.161245]  ? perf_trace_sched_process_exec+0x860/0x860
[  191.166693]  ? print_usage_bug+0xc0/0xc0
[  191.170759]  ? print_usage_bug+0xc0/0xc0
[  191.174847]  ? down_read+0x8d/0x120
[  191.178470]  ? ext4_filemap_fault+0x7a/0xad
[  191.182795]  ? __down_interruptible+0x700/0x700
[  191.187483]  ext4_filemap_fault+0x82/0xad
[  191.191639]  __do_fault+0x100/0x6b0
[  191.195274]  ? pmd_devmap_trans_unstable+0x220/0x220
[  191.200381]  ? mark_held_locks+0x130/0x130
[  191.204618]  ? mark_held_locks+0x130/0x130
[  191.208866]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  191.213675]  ? retint_kernel+0x2d/0x2d
[  191.217569]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  191.223107]  __handle_mm_fault+0x3ea0/0x5be0
[  191.227530]  ? perf_trace_lock+0x7a0/0x7a0
[  191.231773]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  191.236632]  ? __switch_to_asm+0x34/0x70
[  191.240693]  ? __switch_to_asm+0x34/0x70
[  191.244768]  ? zap_class+0x640/0x640
[  191.248483]  ? zap_class+0x640/0x640
[  191.252196]  ? __x64_sys_futex+0x53e/0x6a0
[  191.256437]  ? find_held_lock+0x36/0x1c0
[  191.260506]  ? handle_mm_fault+0x42a/0xc70
[  191.264757]  ? lock_downgrade+0x900/0x900
[  191.268909]  ? check_preemption_disabled+0x48/0x280
[  191.273927]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  191.278859]  ? kasan_check_read+0x11/0x20
[  191.283007]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  191.288280]  ? rcu_softirq_qs+0x20/0x20
[  191.292251]  ? trace_hardirqs_off_caller+0x310/0x310
[  191.297371]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  191.302907]  ? check_preemption_disabled+0x48/0x280
[  191.307929]  handle_mm_fault+0x54f/0xc70
[  191.312006]  ? __handle_mm_fault+0x5be0/0x5be0
[  191.316595]  ? find_vma+0x34/0x190
[  191.320148]  __do_page_fault+0x5e8/0xe60
[  191.324207]  ? trace_hardirqs_off+0xb8/0x310
[  191.328631]  do_page_fault+0xf2/0x7e0
[  191.332438]  ? vmalloc_sync_all+0x30/0x30
[  191.336586]  ? error_entry+0x70/0xd0
[  191.340300]  ? trace_hardirqs_off_caller+0xbb/0x310
[  191.345313]  ? trace_hardirqs_on_caller+0xc0/0x310
[  191.350260]  ? syscall_return_slowpath+0x5e0/0x5e0
[  191.355204]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  191.360043]  ? trace_hardirqs_on_caller+0x310/0x310
[  191.365069]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  191.370522]  ? prepare_exit_to_usermode+0x291/0x3b0
[  191.375542]  ? page_fault+0x8/0x30
[  191.379084]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  191.383935]  ? page_fault+0x8/0x30
[  191.387487]  page_fault+0x1e/0x30
[  191.390949] RIP: 0033:0x4290d7
[  191.394157] Code: Bad RIP value.
[  191.397517] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  191.402884] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  191.410156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  191.417418] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  191.424681] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  191.431947] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  191.439252] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  191.439330] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  191.446540] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  191.446546] Call Trace:
[  191.446551]  <IRQ>
[  191.446568]  dump_stack+0x244/0x39d
[  191.446587]  ? dump_stack_print_info.cold.1+0x20/0x20
[  191.453197] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  191.462406]  warn_alloc.cold.116+0xb7/0x1bd
[  191.464964] syz-fuzzer cpuset=/ mems_allowed=0
[  191.467117]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  191.499797]  ? lock_downgrade+0x900/0x900
[  191.503951]  ? trace_hardirqs_off+0xb8/0x310
[  191.508367]  ? trace_hardirqs_off+0xb8/0x310
[  191.512787]  __alloc_pages_slowpath+0x2651/0x2de0
[  191.517668]  ? warn_alloc+0x120/0x120
[  191.521477]  ? print_usage_bug+0xc0/0xc0
[  191.525537]  ? warn_alloc+0x120/0x120
[  191.529341]  ? warn_alloc+0x120/0x120
[  191.533145]  ? print_usage_bug+0xc0/0xc0
[  191.537210]  ? print_usage_bug+0xc0/0xc0
[  191.541289]  ? __lock_acquire+0x62f/0x4c20
[  191.545526]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  191.551066]  ? should_fail+0x22d/0xd01
[  191.554962]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  191.560067]  ? __lock_acquire+0x62f/0x4c20
[  191.564308]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  191.569411]  ? __lock_acquire+0x62f/0x4c20
[  191.573657]  ? should_fail+0x22d/0xd01
[  191.577548]  ? find_held_lock+0x36/0x1c0
[  191.581616]  ? mark_held_locks+0x130/0x130
[  191.585871]  ? mark_held_locks+0x130/0x130
[  191.590101]  ? zap_class+0x640/0x640
[  191.593812]  ? zap_class+0x640/0x640
[  191.597526]  ? print_usage_bug+0xc0/0xc0
[  191.601583]  ? do_raw_spin_unlock+0xa7/0x330
[  191.605987]  ? zap_class+0x640/0x640
[  191.609699]  ? print_usage_bug+0xc0/0xc0
[  191.613757]  ? wq_watchdog_touch+0x9c/0xfe
[  191.617992]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  191.623528]  ? check_preemption_disabled+0x48/0x280
[  191.628548]  ? __lock_is_held+0xb5/0x140
[  191.632611]  __alloc_pages_nodemask+0xad8/0xea0
[  191.637288]  ? zap_class+0x640/0x640
[  191.641011]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  191.646054]  ? find_held_lock+0x36/0x1c0
[  191.650154]  ? ____cache_alloc_node+0x1c7/0x1e0
[  191.654825]  ? lock_downgrade+0x900/0x900
[  191.658982]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  191.664537]  cache_grow_begin+0xa5/0x8c0
[  191.668594]  ? do_raw_spin_unlock+0xa7/0x330
[  191.673013]  fallback_alloc+0x204/0x2e0
[  191.677010]  ____cache_alloc_node+0x1c7/0x1e0
[  191.681513]  kmem_cache_alloc_node+0xe3/0x730
[  191.686012]  ? ipv6_get_ifaddr+0x42e/0x620
[  191.690255]  __alloc_skb+0x119/0x770
[  191.693964]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  191.699245]  ? netdev_alloc_frag+0x1f0/0x1f0
[  191.703660]  ? lock_downgrade+0x900/0x900
[  191.707815]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  191.713351]  ? refcount_sub_and_test_checked+0x203/0x310
[  191.718802]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  191.724262]  ? addrconf_rs_timer+0x690/0x690
[  191.728685]  ndisc_alloc_skb+0x144/0x340
[  191.732748]  ndisc_send_rs+0x331/0x6e0
[  191.736651]  addrconf_rs_timer+0x314/0x690
[  191.740890]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  191.745131]  call_timer_fn+0x272/0x920
[  191.749016]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  191.753246]  ? process_timeout+0x40/0x40
[  191.757311]  ? __run_timers+0x7da/0xc70
[  191.761286]  ? _raw_spin_unlock_irq+0x27/0x80
[  191.765777]  ? _raw_spin_unlock_irq+0x27/0x80
[  191.770266]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  191.774502]  ? lockdep_hardirqs_on+0x296/0x5b0
[  191.779084]  ? trace_hardirqs_on+0xbd/0x310
[  191.783403]  ? kasan_check_read+0x11/0x20
[  191.787550]  ? __run_timers+0x7da/0xc70
[  191.791522]  ? trace_hardirqs_off_caller+0x310/0x310
[  191.796630]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  191.800876]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  191.805107]  __run_timers+0x7e5/0xc70
[  191.808917]  ? timer_fixup_init+0x70/0x70
[  191.813063]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  191.818080]  ? zap_class+0x640/0x640
[  191.821795]  ? enqueue_hrtimer+0x1a5/0x560
[  191.826036]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  191.831232]  ? find_held_lock+0x36/0x1c0
[  191.835295]  ? zap_class+0x640/0x640
[  191.839023]  ? pvclock_read_flags+0x160/0x160
[  191.843532]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  191.849069]  ? check_preemption_disabled+0x48/0x280
[  191.854091]  ? __lock_is_held+0xb5/0x140
[  191.858169]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  191.863723]  ? check_preemption_disabled+0x48/0x280
[  191.868748]  run_timer_softirq+0x52/0xb0
[  191.872811]  ? rcu_read_lock_sched_held+0x14f/0x180
[  191.877827]  __do_softirq+0x308/0xb7e
[  191.881634]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  191.886131]  ? lock_downgrade+0x900/0x900
[  191.890285]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  191.895391]  ? pvclock_read_flags+0x160/0x160
[  191.899921]  ? lapic_next_event+0x5a/0x90
[  191.904084]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  191.909633]  ? kvm_clock_read+0x18/0x30
[  191.913613]  ? kvm_sched_clock_read+0x9/0x20
[  191.918037]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  191.923574]  ? check_preemption_disabled+0x48/0x280
[  191.928598]  irq_exit+0x17f/0x1c0
[  191.932061]  smp_apic_timer_interrupt+0x1cb/0x760
[  191.936905]  ? smp_reschedule_interrupt+0x109/0x650
[  191.941926]  ? smp_call_function_single_interrupt+0x650/0x650
[  191.947814]  ? interrupt_entry+0xb5/0xc0
[  191.951875]  ? trace_hardirqs_off_caller+0xbb/0x310
[  191.956887]  ? trace_hardirqs_off_caller+0xbb/0x310
[  191.961957]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  191.966801]  ? trace_hardirqs_on_caller+0x310/0x310
[  191.971818]  ? trace_hardirqs_on_caller+0x310/0x310
[  191.976835]  ? task_prio+0x50/0x50
[  191.980388]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  191.985929]  ? check_preemption_disabled+0x48/0x280
[  191.990952]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  191.995804]  apic_timer_interrupt+0xf/0x20
[  192.000028]  </IRQ>
[  192.002262] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  192.007191] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  192.026090] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  192.033794] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  192.041060] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  192.048335] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  192.055597] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  192.062873] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  192.070191]  skb_clone+0x1bb/0x500
[  192.073746]  ? skb_split+0x11e0/0x11e0
[  192.077640]  ? preempt_notifier_register+0x200/0x200
[  192.082762]  ? __switch_to_asm+0x34/0x70
[  192.086819]  ? __switch_to_asm+0x34/0x70
[  192.090880]  ? __switch_to_asm+0x40/0x70
[  192.094950]  ? __switch_to_asm+0x34/0x70
[  192.099009]  ? __switch_to_asm+0x40/0x70
[  192.103068]  ? __switch_to_asm+0x40/0x70
[  192.107129]  ? __switch_to_asm+0x34/0x70
[  192.111189]  ? __switch_to_asm+0x34/0x70
[  192.115255]  ? __switch_to_asm+0x40/0x70
[  192.119316]  ? __switch_to_asm+0x34/0x70
[  192.123380]  bpf_clone_redirect+0xb9/0x490
[  192.127634]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  192.132681]  ? __sched_text_start+0x8/0x8
[  192.136833]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  192.141417]  ? retint_kernel+0x2d/0x2d
[  192.145302]  ? trace_hardirqs_on_caller+0xc0/0x310
[  192.150235]  ? find_held_lock+0x36/0x1c0
[  192.154305]  ? lock_acquire+0x1ed/0x520
[  192.158278]  ? bpf_test_run+0x3cb/0x780
[  192.162252]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  192.167793]  ? check_preemption_disabled+0x48/0x280
[  192.172814]  ? kasan_check_read+0x11/0x20
[  192.176962]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  192.182236]  ? rcu_softirq_qs+0x20/0x20
[  192.186209]  ? preempt_schedule+0x4d/0x60
[  192.190354]  ? ___preempt_schedule+0x16/0x18
[  192.194770]  ? bpf_test_run+0x25d/0x780
[  192.198759]  ? netlink_diag_dump+0x2a0/0x2a0
[  192.203173]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  192.208710]  ? bpf_test_init.isra.10+0x70/0x100
[  192.213384]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  192.218150]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  192.222989]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  192.228525]  ? fput+0x130/0x1a0
[  192.231808]  ? __bpf_prog_get+0x9b/0x290
[  192.235875]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  192.240722]  ? bpf_prog_test_run+0x130/0x1a0
[  192.245137]  ? __x64_sys_bpf+0x3db/0x520
[  192.249196]  ? bpf_prog_get+0x20/0x20
[  192.253022]  ? do_syscall_64+0x1b9/0x820
[  192.257083]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  192.262448]  ? syscall_return_slowpath+0x5e0/0x5e0
[  192.267375]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  192.272216]  ? trace_hardirqs_on_caller+0x310/0x310
[  192.277231]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  192.282252]  ? prepare_exit_to_usermode+0x291/0x3b0
[  192.287276]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  192.292127]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  192.297595] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  192.297600] warn_alloc_show_mem: 1 callbacks suppressed
[  192.297607] Mem-Info:
[  192.304619] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  192.310035] active_anon:57128 inactive_anon:971 isolated_anon:0
[  192.310035]  active_file:40 inactive_file:20 isolated_file:0
[  192.310035]  unevictable:0 dirty:11 writeback:0 unstable:0
[  192.310035]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  192.310035]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  192.310035]  free:13615 free_pcp:64 free_cma:0
[  192.312405] Call Trace:
[  192.321792] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  192.354804]  <IRQ>
[  192.357389] 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
[  192.385349]  dump_stack+0x244/0x39d
[  192.387473] lowmem_reserve[]: 0 2818 6321 6321
[  192.413581]  ? dump_stack_print_info.cold.1+0x20/0x20
[  192.417192] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  192.421786]  warn_alloc.cold.116+0xb7/0x1bd
[  192.426939] lowmem_reserve[]: 0 0 3503 3503
[  192.454445]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  192.458758] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  192.463093]  ? lock_downgrade+0x900/0x900
[  192.467905] lowmem_reserve[]: 0 0 0 0
[  192.497049]  ? trace_hardirqs_off+0xb8/0x310
[  192.501165] 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
[  192.504973]  ? trace_hardirqs_off+0xb8/0x310
[  192.509353] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  192.522872]  __alloc_pages_slowpath+0x2651/0x2de0
[  192.527256] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  192.542361]  ? warn_alloc+0x120/0x120
[  192.547155] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  192.547169] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  192.562674]  ? print_usage_bug+0xc0/0xc0
[  192.566447] 5171 total pagecache pages
[  192.575270]  ? warn_alloc+0x120/0x120
[  192.583830] 0 pages in swap cache
[  192.587875]  ? warn_alloc+0x120/0x120
[  192.591740] Swap cache stats: add 0, delete 0, find 0/0
[  192.595526]  ? print_usage_bug+0xc0/0xc0
[  192.598954] Free swap  = 0kB
[  192.602746]  ? kvm_clock_read+0x18/0x30
[  192.608084] Total swap = 0kB
[  192.612133]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  192.615123] 1965979 pages RAM
[  192.619105]  ? print_usage_bug+0xc0/0xc0
[  192.622594] 0 pages HighMem/MovableOnly
[  192.622603] 342854 pages reserved
[  192.627636]  ? __lock_acquire+0x62f/0x4c20
[  192.630742] 0 pages cma reserved
[  192.634797]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  192.638809] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  192.642190]  ? should_fail+0x22d/0xd01
[  192.642208]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  192.642223]  ? __lock_acquire+0x62f/0x4c20
[  192.646528] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  192.649792]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  192.655304] syz-executor2 cpuset=syz2 mems_allowed=0
[  192.661789]  ? __lock_acquire+0x62f/0x4c20
[  192.699816]  ? should_fail+0x22d/0xd01
[  192.703717]  ? mark_held_locks+0x130/0x130
[  192.707953]  ? mark_held_locks+0x130/0x130
[  192.712199]  ? try_to_wake_up+0x11c/0x1490
[  192.716438]  ? zap_class+0x640/0x640
[  192.720157]  ? print_usage_bug+0xc0/0xc0
[  192.724218]  ? trace_hardirqs_off+0xb8/0x310
[  192.728633]  ? kasan_check_read+0x11/0x20
[  192.732797]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  192.738332]  ? check_preemption_disabled+0x48/0x280
[  192.743354]  ? __lock_is_held+0xb5/0x140
[  192.747422]  __alloc_pages_nodemask+0xad8/0xea0
[  192.752550]  ? zap_class+0x640/0x640
[  192.756272]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  192.761299]  ? find_held_lock+0x36/0x1c0
[  192.765367]  ? ____cache_alloc_node+0x1c7/0x1e0
[  192.770037]  ? lock_downgrade+0x900/0x900
[  192.774191]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  192.779748]  cache_grow_begin+0xa5/0x8c0
[  192.783807]  ? do_raw_spin_unlock+0xa7/0x330
[  192.788223]  fallback_alloc+0x204/0x2e0
[  192.792204]  ____cache_alloc_node+0x1c7/0x1e0
[  192.796706]  kmem_cache_alloc_node+0xe3/0x730
[  192.801203]  ? ipv6_get_ifaddr+0x42e/0x620
[  192.805446]  __alloc_skb+0x119/0x770
[  192.809171]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  192.814451]  ? netdev_alloc_frag+0x1f0/0x1f0
[  192.818860]  ? lock_downgrade+0x900/0x900
[  192.823045]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  192.828593]  ? refcount_sub_and_test_checked+0x203/0x310
[  192.834056]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  192.839507]  ? addrconf_rs_timer+0x690/0x690
[  192.843927]  ndisc_alloc_skb+0x144/0x340
[  192.848006]  ndisc_send_rs+0x331/0x6e0
[  192.851898]  addrconf_rs_timer+0x314/0x690
[  192.856168]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  192.860418]  call_timer_fn+0x272/0x920
[  192.864309]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  192.868542]  ? process_timeout+0x40/0x40
[  192.872612]  ? mark_held_locks+0xc7/0x130
[  192.876782]  ? _raw_spin_unlock_irq+0x27/0x80
[  192.881274]  ? _raw_spin_unlock_irq+0x27/0x80
[  192.885763]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  192.889999]  ? lockdep_hardirqs_on+0x296/0x5b0
[  192.894581]  ? trace_hardirqs_on+0xbd/0x310
[  192.898899]  ? kasan_check_read+0x11/0x20
[  192.903043]  ? __run_timers+0x7da/0xc70
[  192.907018]  ? trace_hardirqs_off_caller+0x310/0x310
[  192.912133]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  192.916370]  __run_timers+0x7e5/0xc70
[  192.920185]  ? timer_fixup_init+0x70/0x70
[  192.924337]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  192.929352]  ? zap_class+0x640/0x640
[  192.933071]  ? print_usage_bug+0xc0/0xc0
[  192.937162]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  192.942355]  ? find_held_lock+0x36/0x1c0
[  192.946428]  ? zap_class+0x640/0x640
[  192.950157]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  192.955697]  ? check_preemption_disabled+0x48/0x280
[  192.960739]  ? __lock_is_held+0xb5/0x140
[  192.964816]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  192.970351]  ? check_preemption_disabled+0x48/0x280
[  192.975372]  run_timer_softirq+0x52/0xb0
[  192.979435]  ? rcu_read_lock_sched_held+0x14f/0x180
[  192.984453]  __do_softirq+0x308/0xb7e
[  192.988255]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  192.992748]  ? lock_downgrade+0x900/0x900
[  192.996899]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  193.002011]  ? pvclock_read_flags+0x160/0x160
[  193.006508]  ? lapic_next_event+0x5a/0x90
[  193.010660]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  193.016203]  ? kvm_clock_read+0x18/0x30
[  193.020176]  ? kvm_sched_clock_read+0x9/0x20
[  193.024584]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  193.030119]  ? check_preemption_disabled+0x48/0x280
[  193.035167]  irq_exit+0x17f/0x1c0
[  193.038631]  smp_apic_timer_interrupt+0x1cb/0x760
[  193.043471]  ? smp_reschedule_interrupt+0x109/0x650
[  193.048486]  ? smp_call_function_single_interrupt+0x650/0x650
[  193.054369]  ? interrupt_entry+0xb5/0xc0
[  193.058432]  ? trace_hardirqs_off_caller+0xbb/0x310
[  193.063454]  ? trace_hardirqs_off_caller+0xbb/0x310
[  193.068470]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  193.073342]  ? trace_hardirqs_on_caller+0x310/0x310
[  193.078372]  ? trace_hardirqs_on_caller+0x310/0x310
[  193.083389]  ? task_prio+0x50/0x50
[  193.086930]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  193.092471]  ? check_preemption_disabled+0x48/0x280
[  193.097505]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  193.102396]  apic_timer_interrupt+0xf/0x20
[  193.106621]  </IRQ>
[  193.108897] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  193.114086] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  193.132983] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  193.140690] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  193.147953] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  193.155223] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  193.162483] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  193.169746] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  193.177080]  retint_kernel+0x1b/0x2d
[  193.180792] RIP: 0010:dump_stack+0x358/0x39d
[  193.185196] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  193.204107] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  193.211809] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  193.219077] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  193.226340] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  193.233607] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  193.240892] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  193.248178]  ? dump_stack+0x34f/0x39d
[  193.251994]  ? dump_stack_print_info.cold.1+0x20/0x20
[  193.257183]  ? mark_held_locks+0x130/0x130
[  193.261418]  ? mark_held_locks+0x130/0x130
[  193.265675]  dump_header+0x27b/0xf72
[  193.269398]  ? pagefault_out_of_memory+0x197/0x197
[  193.274335]  ? __lock_acquire+0x62f/0x4c20
[  193.278570]  ? print_usage_bug+0xc0/0xc0
[  193.282669]  ? zap_class+0x640/0x640
[  193.286390]  ? print_usage_bug+0xc0/0xc0
[  193.290454]  ? print_usage_bug+0xc0/0xc0
[  193.294518]  ? print_usage_bug+0xc0/0xc0
[  193.298587]  ? find_held_lock+0x36/0x1c0
[  193.302678]  ? mark_held_locks+0xc7/0x130
[  193.306848]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  193.311953]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  193.317059]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  193.321646]  ? trace_hardirqs_on+0xbd/0x310
[  193.325969]  ? kasan_check_read+0x11/0x20
[  193.330116]  ? ___ratelimit+0x3b4/0x672
[  193.334107]  ? trace_hardirqs_off_caller+0x310/0x310
[  193.339227]  ? trace_hardirqs_on+0x310/0x310
[  193.343643]  ? lock_downgrade+0x900/0x900
[  193.347797]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  193.352915]  ? ___ratelimit+0x3b9/0x672
[  193.356894]  ? idr_get_free+0xf70/0xf70
[  193.360870]  ? kasan_check_read+0x11/0x20
[  193.365046]  ? do_raw_spin_unlock+0xa7/0x330
[  193.369473]  oom_kill_process.cold.27+0x10/0x903
[  193.374227]  ? zap_class+0x640/0x640
[  193.377937]  ? _raw_spin_unlock+0x2c/0x50
[  193.382096]  ? oom_badness+0xe6/0xaa0
[  193.385896]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  193.390826]  ? kasan_check_read+0x11/0x20
[  193.394971]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  193.400247]  ? oom_evaluate_task+0x540/0x540
[  193.404680]  ? find_held_lock+0x36/0x1c0
[  193.408759]  ? out_of_memory+0x974/0x1430
[  193.412908]  ? lock_downgrade+0x900/0x900
[  193.417057]  ? check_preemption_disabled+0x48/0x280
[  193.422093]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  193.427052]  ? kasan_check_read+0x11/0x20
[  193.431211]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  193.436489]  ? rcu_softirq_qs+0x20/0x20
[  193.440465]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  193.445996]  ? oom_evaluate_task+0x302/0x540
[  193.450419]  out_of_memory+0xa84/0x1430
[  193.454416]  ? oom_killer_disable+0x3a0/0x3a0
[  193.458913]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  193.463848]  ? __ww_mutex_check_waiters+0x160/0x160
[  193.468880]  __alloc_pages_slowpath+0x232c/0x2de0
[  193.473759]  ? warn_alloc+0x120/0x120
[  193.477576]  ? mark_held_locks+0x130/0x130
[  193.481816]  ? find_get_entry+0xaae/0x1120
[  193.486059]  ? filemap_map_pages+0x1a20/0x1a20
[  193.490653]  ? zap_class+0x640/0x640
[  193.494375]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  193.499915]  ? check_preemption_disabled+0x48/0x280
[  193.504930]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  193.510470]  ? should_fail+0x22d/0xd01
[  193.514360]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  193.519462]  ? zap_class+0x640/0x640
[  193.523203]  ? __lock_is_held+0xb5/0x140
[  193.527276]  ? mark_held_locks+0x130/0x130
[  193.531513]  ? lock_release+0xa00/0xa00
[  193.535486]  ? perf_trace_sched_process_exec+0x860/0x860
[  193.540939]  ? xa_load+0x2ba/0x460
[  193.544478]  ? lock_downgrade+0x900/0x900
[  193.548638]  ? __might_sleep+0x95/0x190
[  193.552617]  __alloc_pages_nodemask+0xad8/0xea0
[  193.557302]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  193.562317]  ? __page_cache_alloc+0x191/0x5c0
[  193.566808]  ? xa_load+0x2e1/0x460
[  193.570352]  ? xa_clear_mark+0x40/0x40
[  193.574244]  ? zap_class+0x640/0x640
[  193.577966]  ? zap_class+0x640/0x640
[  193.581683]  ? zap_class+0x640/0x640
[  193.585397]  ? __do_page_cache_readahead+0x663/0x810
[  193.590509]  ? find_held_lock+0x36/0x1c0
[  193.594579]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  193.600186]  alloc_pages_current+0x173/0x350
[  193.604617]  __page_cache_alloc+0x38c/0x5c0
[  193.608950]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  193.613881]  ? kasan_check_read+0x11/0x20
[  193.618026]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  193.623302]  ? generic_perform_write+0x6a0/0x6a0
[  193.628060]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  193.633602]  ? check_preemption_disabled+0x48/0x280
[  193.638642]  filemap_fault+0x1595/0x25f0
[  193.642724]  ? __lock_page_or_retry+0xa00/0xa00
[  193.647394]  ? mark_held_locks+0x130/0x130
[  193.651645]  ? filemap_map_pages+0xd6b/0x1a20
[  193.656176]  ? lock_downgrade+0x900/0x900
[  193.660327]  ? check_preemption_disabled+0x48/0x280
[  193.665348]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  193.670279]  ? kasan_check_read+0x11/0x20
[  193.674443]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  193.679716]  ? rcu_softirq_qs+0x20/0x20
[  193.683703]  ? filemap_map_pages+0xd92/0x1a20
[  193.688213]  ? find_get_entries_tag+0x1400/0x1400
[  193.693058]  ? debug_object_destroy+0x2b0/0x2b0
[  193.697760]  ? lock_pi_update_atomic+0x150/0x150
[  193.702516]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  193.708065]  ? lock_acquire+0x1ed/0x520
[  193.712036]  ? ext4_filemap_fault+0x7a/0xad
[  193.716361]  ? lock_release+0xa00/0xa00
[  193.720336]  ? perf_trace_sched_process_exec+0x860/0x860
[  193.725789]  ? print_usage_bug+0xc0/0xc0
[  193.729851]  ? print_usage_bug+0xc0/0xc0
[  193.733920]  ? down_read+0x8d/0x120
[  193.737542]  ? ext4_filemap_fault+0x7a/0xad
[  193.741862]  ? __down_interruptible+0x700/0x700
[  193.746542]  ext4_filemap_fault+0x82/0xad
[  193.750689]  __do_fault+0x100/0x6b0
[  193.754318]  ? pmd_devmap_trans_unstable+0x220/0x220
[  193.759425]  ? mark_held_locks+0x130/0x130
[  193.763661]  ? mark_held_locks+0x130/0x130
[  193.767895]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  193.772661]  ? retint_kernel+0x2d/0x2d
[  193.776563]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  193.782103]  __handle_mm_fault+0x3ea0/0x5be0
[  193.786508]  ? perf_trace_lock+0x7a0/0x7a0
[  193.790778]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  193.795632]  ? __switch_to_asm+0x34/0x70
[  193.799720]  ? __switch_to_asm+0x34/0x70
[  193.803790]  ? zap_class+0x640/0x640
[  193.807501]  ? zap_class+0x640/0x640
[  193.811223]  ? __x64_sys_futex+0x53e/0x6a0
[  193.815460]  ? find_held_lock+0x36/0x1c0
[  193.819527]  ? handle_mm_fault+0x42a/0xc70
[  193.823761]  ? lock_downgrade+0x900/0x900
[  193.827946]  ? check_preemption_disabled+0x48/0x280
[  193.832965]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  193.837896]  ? kasan_check_read+0x11/0x20
[  193.842058]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  193.847330]  ? rcu_softirq_qs+0x20/0x20
[  193.851303]  ? trace_hardirqs_off_caller+0x310/0x310
[  193.856404]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  193.861943]  ? check_preemption_disabled+0x48/0x280
[  193.866964]  handle_mm_fault+0x54f/0xc70
[  193.871026]  ? __handle_mm_fault+0x5be0/0x5be0
[  193.875612]  ? find_vma+0x34/0x190
[  193.879182]  __do_page_fault+0x5e8/0xe60
[  193.883240]  ? trace_hardirqs_off+0xb8/0x310
[  193.887663]  do_page_fault+0xf2/0x7e0
[  193.891467]  ? vmalloc_sync_all+0x30/0x30
[  193.895613]  ? error_entry+0x70/0xd0
[  193.899334]  ? trace_hardirqs_off_caller+0xbb/0x310
[  193.904347]  ? trace_hardirqs_on_caller+0xc0/0x310
[  193.909277]  ? syscall_return_slowpath+0x5e0/0x5e0
[  193.914203]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  193.919048]  ? trace_hardirqs_on_caller+0x310/0x310
[  193.924099]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  193.929576]  ? prepare_exit_to_usermode+0x291/0x3b0
[  193.934631]  ? page_fault+0x8/0x30
[  193.938203]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  193.943054]  ? page_fault+0x8/0x30
[  193.946648]  page_fault+0x1e/0x30
[  193.950104] RIP: 0033:0x4290d7
[  193.953311] Code: Bad RIP value.
[  193.956688] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  193.962046] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  193.969310] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  193.976587] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  193.983850] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  193.991125] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  193.998417] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  193.998481] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  194.005694] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  194.005699] Call Trace:
[  194.005706]  <IRQ>
[  194.005725]  dump_stack+0x244/0x39d
[  194.005744]  ? dump_stack_print_info.cold.1+0x20/0x20
[  194.012312] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  194.021572]  warn_alloc.cold.116+0xb7/0x1bd
[  194.024127] syz-fuzzer cpuset=/ mems_allowed=0
[  194.026269]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  194.058996]  ? lock_downgrade+0x900/0x900
[  194.063155]  ? trace_hardirqs_off+0xb8/0x310
[  194.067583]  ? trace_hardirqs_off+0xb8/0x310
[  194.071999]  __alloc_pages_slowpath+0x2651/0x2de0
[  194.076868]  ? warn_alloc+0x120/0x120
[  194.080690]  ? print_usage_bug+0xc0/0xc0
[  194.084752]  ? warn_alloc+0x120/0x120
[  194.088558]  ? warn_alloc+0x120/0x120
[  194.092362]  ? print_usage_bug+0xc0/0xc0
[  194.096426]  ? print_usage_bug+0xc0/0xc0
[  194.100505]  ? __lock_acquire+0x62f/0x4c20
[  194.104764]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  194.110302]  ? should_fail+0x22d/0xd01
[  194.114187]  ? __lock_acquire+0x62f/0x4c20
[  194.118436]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  194.123537]  ? __lock_acquire+0x62f/0x4c20
[  194.127774]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  194.132874]  ? __lock_acquire+0x62f/0x4c20
[  194.137106]  ? should_fail+0x22d/0xd01
[  194.141000]  ? mark_held_locks+0x130/0x130
[  194.145251]  ? mark_held_locks+0x130/0x130
[  194.149480]  ? zap_class+0x640/0x640
[  194.153196]  ? zap_class+0x640/0x640
[  194.156910]  ? print_usage_bug+0xc0/0xc0
[  194.160967]  ? wq_watchdog_touch+0x9c/0xfe
[  194.165202]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  194.170757]  ? check_preemption_disabled+0x48/0x280
[  194.175778]  ? __lock_is_held+0xb5/0x140
[  194.179843]  __alloc_pages_nodemask+0xad8/0xea0
[  194.184512]  ? zap_class+0x640/0x640
[  194.188246]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  194.193270]  ? find_held_lock+0x36/0x1c0
[  194.197343]  ? ____cache_alloc_node+0x1c7/0x1e0
[  194.202010]  ? lock_downgrade+0x900/0x900
[  194.206179]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  194.211722]  cache_grow_begin+0xa5/0x8c0
[  194.215784]  ? do_raw_spin_unlock+0xa7/0x330
[  194.220199]  fallback_alloc+0x204/0x2e0
[  194.224181]  ____cache_alloc_node+0x1c7/0x1e0
[  194.228696]  kmem_cache_alloc_node+0xe3/0x730
[  194.233262]  ? ipv6_get_ifaddr+0x42e/0x620
[  194.237533]  __alloc_skb+0x119/0x770
[  194.241247]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  194.246529]  ? netdev_alloc_frag+0x1f0/0x1f0
[  194.250955]  ? lock_downgrade+0x900/0x900
[  194.255109]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  194.260658]  ? refcount_sub_and_test_checked+0x203/0x310
[  194.266112]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  194.271592]  ? addrconf_rs_timer+0x690/0x690
[  194.276016]  ndisc_alloc_skb+0x144/0x340
[  194.280113]  ndisc_send_rs+0x331/0x6e0
[  194.284033]  addrconf_rs_timer+0x314/0x690
[  194.288285]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  194.292533]  call_timer_fn+0x272/0x920
[  194.296438]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  194.300674]  ? process_timeout+0x40/0x40
[  194.304754]  ? __run_timers+0x7da/0xc70
[  194.308747]  ? _raw_spin_unlock_irq+0x27/0x80
[  194.313242]  ? _raw_spin_unlock_irq+0x27/0x80
[  194.317733]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  194.321966]  ? lockdep_hardirqs_on+0x296/0x5b0
[  194.326549]  ? trace_hardirqs_on+0xbd/0x310
[  194.330869]  ? kasan_check_read+0x11/0x20
[  194.335017]  ? __run_timers+0x7da/0xc70
[  194.338991]  ? trace_hardirqs_off_caller+0x310/0x310
[  194.344194]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  194.348424]  __run_timers+0x7e5/0xc70
[  194.352250]  ? timer_fixup_init+0x70/0x70
[  194.356430]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  194.361471]  ? zap_class+0x640/0x640
[  194.365189]  ? enqueue_hrtimer+0x1a5/0x560
[  194.369424]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  194.374632]  ? find_held_lock+0x36/0x1c0
[  194.378731]  ? zap_class+0x640/0x640
[  194.382461]  ? pvclock_read_flags+0x160/0x160
[  194.386965]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  194.392521]  ? check_preemption_disabled+0x48/0x280
[  194.397548]  ? __lock_is_held+0xb5/0x140
[  194.401612]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  194.407205]  ? check_preemption_disabled+0x48/0x280
[  194.412226]  run_timer_softirq+0x52/0xb0
[  194.416287]  ? rcu_read_lock_sched_held+0x14f/0x180
[  194.421304]  __do_softirq+0x308/0xb7e
[  194.425118]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  194.429636]  ? lock_downgrade+0x900/0x900
[  194.433796]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  194.438904]  ? pvclock_read_flags+0x160/0x160
[  194.443403]  ? lapic_next_event+0x5a/0x90
[  194.447570]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  194.453115]  ? kvm_clock_read+0x18/0x30
[  194.457090]  ? kvm_sched_clock_read+0x9/0x20
[  194.461545]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  194.467080]  ? check_preemption_disabled+0x48/0x280
[  194.472103]  irq_exit+0x17f/0x1c0
[  194.475555]  smp_apic_timer_interrupt+0x1cb/0x760
[  194.480434]  ? smp_reschedule_interrupt+0x109/0x650
[  194.485507]  ? smp_call_function_single_interrupt+0x650/0x650
[  194.491397]  ? interrupt_entry+0xb5/0xc0
[  194.495461]  ? trace_hardirqs_off_caller+0xbb/0x310
[  194.500473]  ? trace_hardirqs_off_caller+0xbb/0x310
[  194.505493]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  194.510338]  ? trace_hardirqs_on_caller+0x310/0x310
[  194.515352]  ? trace_hardirqs_on_caller+0x310/0x310
[  194.520366]  ? task_prio+0x50/0x50
[  194.523906]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  194.529445]  ? check_preemption_disabled+0x48/0x280
[  194.534465]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  194.539313]  apic_timer_interrupt+0xf/0x20
[  194.543536]  </IRQ>
[  194.545777] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  194.550714] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  194.569610] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  194.577326] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  194.584597] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  194.591907] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  194.599173] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  194.606435] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  194.613743]  skb_clone+0x1bb/0x500
[  194.617293]  ? skb_split+0x11e0/0x11e0
[  194.621678]  ? preempt_notifier_register+0x200/0x200
[  194.626780]  ? __switch_to_asm+0x34/0x70
[  194.630842]  ? __switch_to_asm+0x34/0x70
[  194.634900]  ? __switch_to_asm+0x40/0x70
[  194.638962]  ? __switch_to_asm+0x34/0x70
[  194.643020]  ? __switch_to_asm+0x40/0x70
[  194.647080]  ? __switch_to_asm+0x40/0x70
[  194.651140]  ? __switch_to_asm+0x34/0x70
[  194.655197]  ? __switch_to_asm+0x34/0x70
[  194.659256]  ? __switch_to_asm+0x40/0x70
[  194.663313]  ? __switch_to_asm+0x34/0x70
[  194.667378]  bpf_clone_redirect+0xb9/0x490
[  194.671660]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  194.676685]  ? __sched_text_start+0x8/0x8
[  194.680837]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  194.685415]  ? retint_kernel+0x2d/0x2d
[  194.689304]  ? trace_hardirqs_on_caller+0xc0/0x310
[  194.694241]  ? find_held_lock+0x36/0x1c0
[  194.698319]  ? lock_acquire+0x1ed/0x520
[  194.702294]  ? bpf_test_run+0x3cb/0x780
[  194.706294]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  194.711837]  ? check_preemption_disabled+0x48/0x280
[  194.716858]  ? kasan_check_read+0x11/0x20
[  194.721003]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  194.726278]  ? rcu_softirq_qs+0x20/0x20
[  194.730251]  ? preempt_schedule+0x4d/0x60
[  194.734398]  ? ___preempt_schedule+0x16/0x18
[  194.738813]  ? bpf_test_run+0x25d/0x780
[  194.742812]  ? netlink_diag_dump+0x2a0/0x2a0
[  194.747225]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  194.752764]  ? bpf_test_init.isra.10+0x70/0x100
[  194.757439]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  194.762202]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  194.767038]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  194.772573]  ? fput+0x130/0x1a0
[  194.775853]  ? __bpf_prog_get+0x9b/0x290
[  194.779919]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  194.784759]  ? bpf_prog_test_run+0x130/0x1a0
[  194.789169]  ? __x64_sys_bpf+0x3db/0x520
[  194.793228]  ? bpf_prog_get+0x20/0x20
[  194.797046]  ? do_syscall_64+0x1b9/0x820
[  194.801102]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  194.806481]  ? syscall_return_slowpath+0x5e0/0x5e0
[  194.811421]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  194.816278]  ? trace_hardirqs_on_caller+0x310/0x310
[  194.821295]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  194.826329]  ? prepare_exit_to_usermode+0x291/0x3b0
[  194.831351]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  194.836199]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  194.841577] warn_alloc_show_mem: 1 callbacks suppressed
[  194.841588] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  194.841590] Mem-Info:
[  194.841629] active_anon:57128 inactive_anon:971 isolated_anon:0
[  194.841629]  active_file:40 inactive_file:20 isolated_file:0
[  194.841629]  unevictable:0 dirty:11 writeback:0 unstable:0
[  194.841629]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  194.841629]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  194.841629]  free:13615 free_pcp:64 free_cma:0
[  194.846962] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  194.853996] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  194.856408] Call Trace:
[  194.889359] 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
[  194.898708]  <IRQ>
[  194.926631] lowmem_reserve[]: 0 2818 6321 6321
[  194.929233]  dump_stack+0x244/0x39d
[  194.955311] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  194.957460]  ? dump_stack_print_info.cold.1+0x20/0x20
[  194.962012] lowmem_reserve[]: 0 0 3503 3503
[  194.965649]  warn_alloc.cold.116+0xb7/0x1bd
[  194.993118] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  194.998299]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  195.002588] lowmem_reserve[]: 0 0 0 0
[  195.006913]  ? lock_downgrade+0x900/0x900
[  195.036035] 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
[  195.040894]  ? trace_hardirqs_off+0xb8/0x310
[  195.044682] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  195.048826]  ? trace_hardirqs_off+0xb8/0x310
[  195.062321] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  195.066724]  __alloc_pages_slowpath+0x2651/0x2de0
[  195.081786] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  195.086219]  ? warn_alloc+0x120/0x120
[  195.101698] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  195.106526]  ? print_usage_bug+0xc0/0xc0
[  195.115337] 5171 total pagecache pages
[  195.119158]  ? warn_alloc+0x120/0x120
[  195.127708] 0 pages in swap cache
[  195.131756]  ? warn_alloc+0x120/0x120
[  195.135620] Swap cache stats: add 0, delete 0, find 0/0
[  195.139421]  ? print_usage_bug+0xc0/0xc0
[  195.142851] Free swap  = 0kB
[  195.146648]  ? kvm_clock_read+0x18/0x30
[  195.151989] Total swap = 0kB
[  195.156048]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  195.159038] 1965979 pages RAM
[  195.163005]  ? print_usage_bug+0xc0/0xc0
[  195.165998] 0 pages HighMem/MovableOnly
[  195.171004]  ? __lock_acquire+0x62f/0x4c20
[  195.174084] 342854 pages reserved
[  195.178136]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  195.182092] 0 pages cma reserved
[  195.182167] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  195.186328]  ? should_fail+0x22d/0xd01
[  195.189825] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  195.195308]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  195.198660] syz-executor2 cpuset=syz2 mems_allowed=0
[  195.205164]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  195.234925]  ? __lock_acquire+0x62f/0x4c20
[  195.239180]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  195.244283]  ? __lock_acquire+0x62f/0x4c20
[  195.248513]  ? should_fail+0x22d/0xd01
[  195.252400]  ? rcu_irq_exit+0x1a2/0x390
[  195.256415]  ? mark_held_locks+0x130/0x130
[  195.260664]  ? mark_held_locks+0x130/0x130
[  195.264906]  ? mark_held_locks+0xc7/0x130
[  195.269077]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  195.274090]  ? zap_class+0x640/0x640
[  195.277805]  ? print_usage_bug+0xc0/0xc0
[  195.281870]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  195.287418]  ? check_preemption_disabled+0x48/0x280
[  195.292477]  ? __lock_is_held+0xb5/0x140
[  195.296546]  __alloc_pages_nodemask+0xad8/0xea0
[  195.301215]  ? zap_class+0x640/0x640
[  195.304965]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  195.309993]  ? find_held_lock+0x36/0x1c0
[  195.314081]  ? ____cache_alloc_node+0x1c7/0x1e0
[  195.318751]  ? lock_downgrade+0x900/0x900
[  195.322905]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  195.328463]  cache_grow_begin+0xa5/0x8c0
[  195.332556]  ? do_raw_spin_unlock+0xa7/0x330
[  195.336975]  fallback_alloc+0x204/0x2e0
[  195.340955]  ____cache_alloc_node+0x1c7/0x1e0
[  195.345457]  kmem_cache_alloc_node+0xe3/0x730
[  195.349956]  ? ipv6_get_ifaddr+0x42e/0x620
[  195.354202]  __alloc_skb+0x119/0x770
[  195.357915]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  195.363237]  ? netdev_alloc_frag+0x1f0/0x1f0
[  195.367657]  ? lock_downgrade+0x900/0x900
[  195.371815]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  195.377354]  ? refcount_sub_and_test_checked+0x203/0x310
[  195.382808]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  195.388259]  ? addrconf_rs_timer+0x690/0x690
[  195.392680]  ndisc_alloc_skb+0x144/0x340
[  195.396748]  ndisc_send_rs+0x331/0x6e0
[  195.400687]  addrconf_rs_timer+0x314/0x690
[  195.404928]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  195.409184]  call_timer_fn+0x272/0x920
[  195.413086]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  195.417319]  ? process_timeout+0x40/0x40
[  195.421401]  ? mark_held_locks+0xc7/0x130
[  195.425547]  ? _raw_spin_unlock_irq+0x27/0x80
[  195.430056]  ? _raw_spin_unlock_irq+0x27/0x80
[  195.434546]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  195.438784]  ? lockdep_hardirqs_on+0x296/0x5b0
[  195.443371]  ? trace_hardirqs_on+0xbd/0x310
[  195.447697]  ? kasan_check_read+0x11/0x20
[  195.451843]  ? __run_timers+0x7da/0xc70
[  195.455816]  ? trace_hardirqs_off_caller+0x310/0x310
[  195.460926]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  195.465170]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  195.469401]  __run_timers+0x7e5/0xc70
[  195.473222]  ? timer_fixup_init+0x70/0x70
[  195.477386]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  195.482435]  ? zap_class+0x640/0x640
[  195.486156]  ? print_usage_bug+0xc0/0xc0
[  195.490216]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  195.495495]  ? find_held_lock+0x36/0x1c0
[  195.499560]  ? zap_class+0x640/0x640
[  195.503281]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  195.508820]  ? check_preemption_disabled+0x48/0x280
[  195.513844]  ? __lock_is_held+0xb5/0x140
[  195.517917]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  195.523456]  ? check_preemption_disabled+0x48/0x280
[  195.528489]  run_timer_softirq+0x52/0xb0
[  195.532546]  ? rcu_read_lock_sched_held+0x14f/0x180
[  195.537563]  __do_softirq+0x308/0xb7e
[  195.541368]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  195.545859]  ? lock_downgrade+0x900/0x900
[  195.550014]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  195.555142]  ? pvclock_read_flags+0x160/0x160
[  195.559648]  ? lapic_next_event+0x5a/0x90
[  195.563800]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  195.569343]  ? kvm_clock_read+0x18/0x30
[  195.573316]  ? kvm_sched_clock_read+0x9/0x20
[  195.577727]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  195.583264]  ? check_preemption_disabled+0x48/0x280
[  195.588304]  irq_exit+0x17f/0x1c0
[  195.591757]  smp_apic_timer_interrupt+0x1cb/0x760
[  195.596596]  ? smp_reschedule_interrupt+0x109/0x650
[  195.601629]  ? smp_call_function_single_interrupt+0x650/0x650
[  195.607516]  ? interrupt_entry+0xb5/0xc0
[  195.611579]  ? trace_hardirqs_off_caller+0xbb/0x310
[  195.616590]  ? trace_hardirqs_off_caller+0xbb/0x310
[  195.621613]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  195.626495]  ? trace_hardirqs_on_caller+0x310/0x310
[  195.631512]  ? trace_hardirqs_on_caller+0x310/0x310
[  195.636524]  ? task_prio+0x50/0x50
[  195.640065]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  195.645605]  ? check_preemption_disabled+0x48/0x280
[  195.650644]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  195.655496]  apic_timer_interrupt+0xf/0x20
[  195.659721]  </IRQ>
[  195.661958] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  195.667173] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  195.686069] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  195.693774] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  195.701043] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  195.708312] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  195.715588] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  195.722857] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  195.730164]  retint_kernel+0x1b/0x2d
[  195.733884] RIP: 0010:dump_stack+0x358/0x39d
[  195.738302] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  195.757218] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  195.764937] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  195.772226] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  195.779527] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  195.786801] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  195.794076] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  195.801389]  ? dump_stack+0x34f/0x39d
[  195.805210]  ? dump_stack_print_info.cold.1+0x20/0x20
[  195.810410]  ? mark_held_locks+0x130/0x130
[  195.814662]  ? mark_held_locks+0x130/0x130
[  195.818917]  dump_header+0x27b/0xf72
[  195.822664]  ? pagefault_out_of_memory+0x197/0x197
[  195.827617]  ? __lock_acquire+0x62f/0x4c20
[  195.831879]  ? print_usage_bug+0xc0/0xc0
[  195.835944]  ? zap_class+0x640/0x640
[  195.839660]  ? print_usage_bug+0xc0/0xc0
[  195.843724]  ? print_usage_bug+0xc0/0xc0
[  195.847790]  ? print_usage_bug+0xc0/0xc0
[  195.851863]  ? find_held_lock+0x36/0x1c0
[  195.855931]  ? mark_held_locks+0xc7/0x130
[  195.860080]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  195.865198]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  195.870320]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  195.874906]  ? trace_hardirqs_on+0xbd/0x310
[  195.879228]  ? kasan_check_read+0x11/0x20
[  195.883376]  ? ___ratelimit+0x3b4/0x672
[  195.887348]  ? trace_hardirqs_off_caller+0x310/0x310
[  195.892463]  ? trace_hardirqs_on+0x310/0x310
[  195.896873]  ? lock_downgrade+0x900/0x900
[  195.901042]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  195.906144]  ? ___ratelimit+0x3b9/0x672
[  195.910139]  ? idr_get_free+0xf70/0xf70
[  195.914131]  ? kasan_check_read+0x11/0x20
[  195.918282]  ? do_raw_spin_unlock+0xa7/0x330
[  195.922698]  oom_kill_process.cold.27+0x10/0x903
[  195.927453]  ? zap_class+0x640/0x640
[  195.931168]  ? _raw_spin_unlock+0x2c/0x50
[  195.935314]  ? oom_badness+0xe6/0xaa0
[  195.939115]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  195.944048]  ? kasan_check_read+0x11/0x20
[  195.948196]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  195.953489]  ? oom_evaluate_task+0x540/0x540
[  195.957903]  ? find_held_lock+0x36/0x1c0
[  195.961969]  ? out_of_memory+0x974/0x1430
[  195.966132]  ? lock_downgrade+0x900/0x900
[  195.970295]  ? check_preemption_disabled+0x48/0x280
[  195.975313]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  195.980256]  ? kasan_check_read+0x11/0x20
[  195.984401]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  195.989677]  ? rcu_softirq_qs+0x20/0x20
[  195.993662]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  195.999231]  ? oom_evaluate_task+0x302/0x540
[  196.003669]  out_of_memory+0xa84/0x1430
[  196.007677]  ? oom_killer_disable+0x3a0/0x3a0
[  196.012180]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  196.017129]  ? __ww_mutex_check_waiters+0x160/0x160
[  196.022165]  __alloc_pages_slowpath+0x232c/0x2de0
[  196.027037]  ? warn_alloc+0x120/0x120
[  196.030834]  ? mark_held_locks+0x130/0x130
[  196.035073]  ? find_get_entry+0xaae/0x1120
[  196.039346]  ? filemap_map_pages+0x1a20/0x1a20
[  196.043934]  ? zap_class+0x640/0x640
[  196.047700]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  196.053243]  ? check_preemption_disabled+0x48/0x280
[  196.058256]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  196.063794]  ? should_fail+0x22d/0xd01
[  196.067688]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  196.072791]  ? zap_class+0x640/0x640
[  196.076528]  ? __lock_is_held+0xb5/0x140
[  196.080596]  ? mark_held_locks+0x130/0x130
[  196.084844]  ? lock_release+0xa00/0xa00
[  196.088822]  ? perf_trace_sched_process_exec+0x860/0x860
[  196.094285]  ? xa_load+0x2ba/0x460
[  196.097835]  ? lock_downgrade+0x900/0x900
[  196.102010]  ? __might_sleep+0x95/0x190
[  196.105987]  __alloc_pages_nodemask+0xad8/0xea0
[  196.110686]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  196.115721]  ? __page_cache_alloc+0x191/0x5c0
[  196.120214]  ? xa_load+0x2e1/0x460
[  196.123756]  ? xa_clear_mark+0x40/0x40
[  196.127652]  ? zap_class+0x640/0x640
[  196.131376]  ? zap_class+0x640/0x640
[  196.135087]  ? zap_class+0x640/0x640
[  196.138803]  ? __do_page_cache_readahead+0x663/0x810
[  196.143911]  ? find_held_lock+0x36/0x1c0
[  196.147976]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  196.153524]  alloc_pages_current+0x173/0x350
[  196.157958]  __page_cache_alloc+0x38c/0x5c0
[  196.162291]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  196.167219]  ? kasan_check_read+0x11/0x20
[  196.171363]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  196.176648]  ? generic_perform_write+0x6a0/0x6a0
[  196.181408]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  196.186967]  ? check_preemption_disabled+0x48/0x280
[  196.191989]  filemap_fault+0x1595/0x25f0
[  196.196062]  ? __lock_page_or_retry+0xa00/0xa00
[  196.200739]  ? mark_held_locks+0x130/0x130
[  196.204983]  ? filemap_map_pages+0xd6b/0x1a20
[  196.209493]  ? lock_downgrade+0x900/0x900
[  196.213651]  ? check_preemption_disabled+0x48/0x280
[  196.218692]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  196.223632]  ? kasan_check_read+0x11/0x20
[  196.227779]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  196.233056]  ? rcu_softirq_qs+0x20/0x20
[  196.237046]  ? filemap_map_pages+0xd92/0x1a20
[  196.241657]  ? find_get_entries_tag+0x1400/0x1400
[  196.246504]  ? debug_object_destroy+0x2b0/0x2b0
[  196.251181]  ? lock_pi_update_atomic+0x150/0x150
[  196.255936]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  196.261487]  ? lock_acquire+0x1ed/0x520
[  196.265470]  ? ext4_filemap_fault+0x7a/0xad
[  196.269819]  ? lock_release+0xa00/0xa00
[  196.273794]  ? perf_trace_sched_process_exec+0x860/0x860
[  196.279242]  ? print_usage_bug+0xc0/0xc0
[  196.283316]  ? print_usage_bug+0xc0/0xc0
[  196.287386]  ? down_read+0x8d/0x120
[  196.291014]  ? ext4_filemap_fault+0x7a/0xad
[  196.295332]  ? __down_interruptible+0x700/0x700
[  196.300009]  ext4_filemap_fault+0x82/0xad
[  196.304165]  __do_fault+0x100/0x6b0
[  196.307795]  ? pmd_devmap_trans_unstable+0x220/0x220
[  196.312903]  ? mark_held_locks+0x130/0x130
[  196.317142]  ? mark_held_locks+0x130/0x130
[  196.321381]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  196.326141]  ? retint_kernel+0x2d/0x2d
[  196.330038]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  196.335579]  __handle_mm_fault+0x3ea0/0x5be0
[  196.339984]  ? perf_trace_lock+0x7a0/0x7a0
[  196.344232]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  196.349081]  ? __switch_to_asm+0x34/0x70
[  196.353143]  ? __switch_to_asm+0x34/0x70
[  196.357218]  ? zap_class+0x640/0x640
[  196.360928]  ? zap_class+0x640/0x640
[  196.364661]  ? __x64_sys_futex+0x53e/0x6a0
[  196.368933]  ? find_held_lock+0x36/0x1c0
[  196.373002]  ? handle_mm_fault+0x42a/0xc70
[  196.377255]  ? lock_downgrade+0x900/0x900
[  196.381401]  ? check_preemption_disabled+0x48/0x280
[  196.386418]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  196.391345]  ? kasan_check_read+0x11/0x20
[  196.395493]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  196.400773]  ? rcu_softirq_qs+0x20/0x20
[  196.404746]  ? trace_hardirqs_off_caller+0x310/0x310
[  196.409851]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  196.415393]  ? check_preemption_disabled+0x48/0x280
[  196.420417]  handle_mm_fault+0x54f/0xc70
[  196.424499]  ? __handle_mm_fault+0x5be0/0x5be0
[  196.429087]  ? find_vma+0x34/0x190
[  196.432651]  __do_page_fault+0x5e8/0xe60
[  196.436713]  ? trace_hardirqs_off+0xb8/0x310
[  196.441142]  do_page_fault+0xf2/0x7e0
[  196.444952]  ? vmalloc_sync_all+0x30/0x30
[  196.449106]  ? error_entry+0x70/0xd0
[  196.452850]  ? trace_hardirqs_off_caller+0xbb/0x310
[  196.457868]  ? trace_hardirqs_on_caller+0xc0/0x310
[  196.462798]  ? syscall_return_slowpath+0x5e0/0x5e0
[  196.467739]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  196.472585]  ? trace_hardirqs_on_caller+0x310/0x310
[  196.477600]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  196.483065]  ? prepare_exit_to_usermode+0x291/0x3b0
[  196.488079]  ? page_fault+0x8/0x30
[  196.491621]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  196.496474]  ? page_fault+0x8/0x30
[  196.500014]  page_fault+0x1e/0x30
[  196.503463] RIP: 0033:0x4290d7
[  196.506685] Code: Bad RIP value.
[  196.510044] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  196.515402] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  196.522680] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  196.529942] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  196.537221] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  196.544482] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  196.551775] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  196.551839] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  196.559044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  196.559053] Call Trace:
[  196.565652] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  196.574870]  <IRQ>
[  196.577451] syz-fuzzer cpuset=/ mems_allowed=0
[  196.587704]  dump_stack+0x244/0x39d
[  196.598001]  ? dump_stack_print_info.cold.1+0x20/0x20
[  196.603216]  warn_alloc.cold.116+0xb7/0x1bd
[  196.607537]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  196.612383]  ? lock_downgrade+0x900/0x900
[  196.616554]  ? trace_hardirqs_off+0xb8/0x310
[  196.621392]  ? trace_hardirqs_off+0xb8/0x310
[  196.625807]  __alloc_pages_slowpath+0x2651/0x2de0
[  196.630690]  ? warn_alloc+0x120/0x120
[  196.634495]  ? print_usage_bug+0xc0/0xc0
[  196.638557]  ? warn_alloc+0x120/0x120
[  196.642362]  ? warn_alloc+0x120/0x120
[  196.646161]  ? print_usage_bug+0xc0/0xc0
[  196.650223]  ? print_usage_bug+0xc0/0xc0
[  196.654283]  ? __lock_acquire+0x62f/0x4c20
[  196.658523]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  196.664059]  ? should_fail+0x22d/0xd01
[  196.667949]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  196.673053]  ? __lock_acquire+0x62f/0x4c20
[  196.677294]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  196.682392]  ? __lock_acquire+0x62f/0x4c20
[  196.686630]  ? should_fail+0x22d/0xd01
[  196.690518]  ? find_held_lock+0x36/0x1c0
[  196.694587]  ? mark_held_locks+0x130/0x130
[  196.698829]  ? mark_held_locks+0x130/0x130
[  196.703064]  ? zap_class+0x640/0x640
[  196.706780]  ? zap_class+0x640/0x640
[  196.710510]  ? print_usage_bug+0xc0/0xc0
[  196.714569]  ? do_raw_spin_unlock+0xa7/0x330
[  196.718988]  ? zap_class+0x640/0x640
[  196.722711]  ? print_usage_bug+0xc0/0xc0
[  196.726773]  ? wq_watchdog_touch+0x9c/0xfe
[  196.731015]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  196.736549]  ? check_preemption_disabled+0x48/0x280
[  196.741570]  ? __lock_is_held+0xb5/0x140
[  196.745654]  __alloc_pages_nodemask+0xad8/0xea0
[  196.750322]  ? zap_class+0x640/0x640
[  196.754198]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  196.759221]  ? find_held_lock+0x36/0x1c0
[  196.763288]  ? ____cache_alloc_node+0x1c7/0x1e0
[  196.767958]  ? lock_downgrade+0x900/0x900
[  196.772109]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  196.777660]  cache_grow_begin+0xa5/0x8c0
[  196.781723]  ? do_raw_spin_unlock+0xa7/0x330
[  196.786136]  fallback_alloc+0x204/0x2e0
[  196.790133]  ____cache_alloc_node+0x1c7/0x1e0
[  196.794654]  kmem_cache_alloc_node+0xe3/0x730
[  196.799149]  ? ipv6_get_ifaddr+0x42e/0x620
[  196.803394]  __alloc_skb+0x119/0x770
[  196.807105]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  196.812400]  ? netdev_alloc_frag+0x1f0/0x1f0
[  196.816808]  ? lock_downgrade+0x900/0x900
[  196.820963]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  196.826510]  ? refcount_sub_and_test_checked+0x203/0x310
[  196.831964]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  196.837415]  ? addrconf_rs_timer+0x690/0x690
[  196.841854]  ndisc_alloc_skb+0x144/0x340
[  196.845921]  ndisc_send_rs+0x331/0x6e0
[  196.849814]  addrconf_rs_timer+0x314/0x690
[  196.854056]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  196.858299]  call_timer_fn+0x272/0x920
[  196.862185]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  196.866422]  ? process_timeout+0x40/0x40
[  196.870488]  ? __run_timers+0x7da/0xc70
[  196.874468]  ? _raw_spin_unlock_irq+0x27/0x80
[  196.878959]  ? _raw_spin_unlock_irq+0x27/0x80
[  196.883449]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  196.887698]  ? lockdep_hardirqs_on+0x296/0x5b0
[  196.892280]  ? trace_hardirqs_on+0xbd/0x310
[  196.896601]  ? kasan_check_read+0x11/0x20
[  196.900752]  ? __run_timers+0x7da/0xc70
[  196.904728]  ? trace_hardirqs_off_caller+0x310/0x310
[  196.909837]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  196.914077]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  196.918323]  __run_timers+0x7e5/0xc70
[  196.922130]  ? timer_fixup_init+0x70/0x70
[  196.926277]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  196.931295]  ? zap_class+0x640/0x640
[  196.935028]  ? enqueue_hrtimer+0x1a5/0x560
[  196.939262]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  196.944462]  ? find_held_lock+0x36/0x1c0
[  196.948528]  ? zap_class+0x640/0x640
[  196.952245]  ? pvclock_read_flags+0x160/0x160
[  196.956749]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  196.962289]  ? check_preemption_disabled+0x48/0x280
[  196.967314]  ? __lock_is_held+0xb5/0x140
[  196.971375]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  196.976914]  ? check_preemption_disabled+0x48/0x280
[  196.981937]  run_timer_softirq+0x52/0xb0
[  196.985998]  ? rcu_read_lock_sched_held+0x14f/0x180
[  196.991016]  __do_softirq+0x308/0xb7e
[  196.994818]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  196.999313]  ? lock_downgrade+0x900/0x900
[  197.003464]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  197.008574]  ? pvclock_read_flags+0x160/0x160
[  197.013069]  ? lapic_next_event+0x5a/0x90
[  197.017222]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  197.022764]  ? kvm_clock_read+0x18/0x30
[  197.026739]  ? kvm_sched_clock_read+0x9/0x20
[  197.031163]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  197.036701]  ? check_preemption_disabled+0x48/0x280
[  197.041725]  irq_exit+0x17f/0x1c0
[  197.045181]  smp_apic_timer_interrupt+0x1cb/0x760
[  197.050036]  ? smp_reschedule_interrupt+0x109/0x650
[  197.055051]  ? smp_call_function_single_interrupt+0x650/0x650
[  197.060938]  ? interrupt_entry+0xb5/0xc0
[  197.065001]  ? trace_hardirqs_off_caller+0xbb/0x310
[  197.070018]  ? trace_hardirqs_off_caller+0xbb/0x310
[  197.075061]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  197.079906]  ? trace_hardirqs_on_caller+0x310/0x310
[  197.084918]  ? trace_hardirqs_on_caller+0x310/0x310
[  197.089931]  ? task_prio+0x50/0x50
[  197.093470]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  197.099009]  ? check_preemption_disabled+0x48/0x280
[  197.104034]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  197.108889]  apic_timer_interrupt+0xf/0x20
[  197.113113]  </IRQ>
[  197.115349] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  197.120280] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  197.139178] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  197.146881] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  197.154153] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  197.161421] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  197.168683] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  197.175947] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  197.183265]  skb_clone+0x1bb/0x500
[  197.186808]  ? skb_split+0x11e0/0x11e0
[  197.190698]  ? preempt_notifier_register+0x200/0x200
[  197.195807]  ? __switch_to_asm+0x34/0x70
[  197.199866]  ? __switch_to_asm+0x34/0x70
[  197.203937]  ? __switch_to_asm+0x40/0x70
[  197.207996]  ? __switch_to_asm+0x34/0x70
[  197.212055]  ? __switch_to_asm+0x40/0x70
[  197.216114]  ? __switch_to_asm+0x40/0x70
[  197.220173]  ? __switch_to_asm+0x34/0x70
[  197.224228]  ? __switch_to_asm+0x34/0x70
[  197.228285]  ? __switch_to_asm+0x40/0x70
[  197.232345]  ? __switch_to_asm+0x34/0x70
[  197.236410]  bpf_clone_redirect+0xb9/0x490
[  197.240662]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  197.245701]  ? __sched_text_start+0x8/0x8
[  197.249852]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  197.254430]  ? retint_kernel+0x2d/0x2d
[  197.258331]  ? trace_hardirqs_on_caller+0xc0/0x310
[  197.263280]  ? find_held_lock+0x36/0x1c0
[  197.267348]  ? lock_acquire+0x1ed/0x520
[  197.271365]  ? bpf_test_run+0x3cb/0x780
[  197.275340]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  197.280881]  ? check_preemption_disabled+0x48/0x280
[  197.285901]  ? kasan_check_read+0x11/0x20
[  197.290063]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  197.295338]  ? rcu_softirq_qs+0x20/0x20
[  197.299318]  ? preempt_schedule+0x4d/0x60
[  197.303478]  ? ___preempt_schedule+0x16/0x18
[  197.307913]  ? bpf_test_run+0x25d/0x780
[  197.311904]  ? netlink_diag_dump+0x2a0/0x2a0
[  197.316321]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  197.321867]  ? bpf_test_init.isra.10+0x70/0x100
[  197.326545]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  197.331315]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  197.336158]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  197.341715]  ? fput+0x130/0x1a0
[  197.345008]  ? __bpf_prog_get+0x9b/0x290
[  197.349079]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  197.353928]  ? bpf_prog_test_run+0x130/0x1a0
[  197.358359]  ? __x64_sys_bpf+0x3db/0x520
[  197.362423]  ? bpf_prog_get+0x20/0x20
[  197.366251]  ? do_syscall_64+0x1b9/0x820
[  197.370322]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  197.375694]  ? syscall_return_slowpath+0x5e0/0x5e0
[  197.380656]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  197.385509]  ? trace_hardirqs_on_caller+0x310/0x310
[  197.390533]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  197.395553]  ? prepare_exit_to_usermode+0x291/0x3b0
[  197.400573]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  197.405420]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  197.410833] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  197.410838] warn_alloc_show_mem: 1 callbacks suppressed
[  197.410846] Mem-Info:
[  197.417856] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  197.423252] active_anon:57128 inactive_anon:971 isolated_anon:0
[  197.423252]  active_file:40 inactive_file:20 isolated_file:0
[  197.423252]  unevictable:0 dirty:11 writeback:0 unstable:0
[  197.423252]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  197.423252]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  197.423252]  free:13615 free_pcp:64 free_cma:0
[  197.425606] Call Trace:
[  197.435004] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  197.467937]  <IRQ>
[  197.470508] 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
[  197.498452]  dump_stack+0x244/0x39d
[  197.500580] lowmem_reserve[]: 0 2818 6321 6321
[  197.526690]  ? dump_stack_print_info.cold.1+0x20/0x20
[  197.530306] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  197.534901]  warn_alloc.cold.116+0xb7/0x1bd
[  197.540059] lowmem_reserve[]: 0 0 3503 3503
[  197.567554]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  197.571856] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  197.576180]  ? lock_downgrade+0x900/0x900
[  197.580992] lowmem_reserve[]: 0 0 0 0
[  197.610139]  ? trace_hardirqs_off+0xb8/0x310
[  197.614260] 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
[  197.618059]  ? trace_hardirqs_off+0xb8/0x310
[  197.622437] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  197.635957]  __alloc_pages_slowpath+0x2651/0x2de0
[  197.640337] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  197.655439]  ? warn_alloc+0x120/0x120
[  197.660241] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  197.675776]  ? print_usage_bug+0xc0/0xc0
[  197.679556] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  197.688378]  ? warn_alloc+0x120/0x120
[  197.692415] 5171 total pagecache pages
[  197.700985]  ? warn_alloc+0x120/0x120
[  197.704771] 0 pages in swap cache
[  197.708647]  ? print_usage_bug+0xc0/0xc0
[  197.712425] Swap cache stats: add 0, delete 0, find 0/0
[  197.715866]  ? kvm_clock_read+0x18/0x30
[  197.719898] Free swap  = 0kB
[  197.725250]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  197.729197] Total swap = 0kB
[  197.732202]  ? print_usage_bug+0xc0/0xc0
[  197.737213] 1965979 pages RAM
[  197.740220]  ? __lock_acquire+0x62f/0x4c20
[  197.744257] 0 pages HighMem/MovableOnly
[  197.747373]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  197.751582] 342854 pages reserved
[  197.755548]  ? should_fail+0x22d/0xd01
[  197.761077] 0 pages cma reserved
[  197.761151] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  197.764532]  ? __lock_acquire+0x62f/0x4c20
[  197.768445] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  197.771776]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  197.778251] syz-executor2 cpuset=syz2 mems_allowed=0
[  197.782482]  ? __lock_acquire+0x62f/0x4c20
[  197.807340]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  197.812466]  ? __lock_acquire+0x62f/0x4c20
[  197.816718]  ? should_fail+0x22d/0xd01
[  197.820615]  ? mark_held_locks+0x130/0x130
[  197.824863]  ? mark_held_locks+0x130/0x130
[  197.829117]  ? mark_held_locks+0xc7/0x130
[  197.833282]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  197.838294]  ? zap_class+0x640/0x640
[  197.842009]  ? print_usage_bug+0xc0/0xc0
[  197.846076]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  197.851618]  ? check_preemption_disabled+0x48/0x280
[  197.856656]  ? __lock_is_held+0xb5/0x140
[  197.860727]  __alloc_pages_nodemask+0xad8/0xea0
[  197.865397]  ? zap_class+0x640/0x640
[  197.869142]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  197.874178]  ? find_held_lock+0x36/0x1c0
[  197.878248]  ? ____cache_alloc_node+0x1c7/0x1e0
[  197.882915]  ? lock_downgrade+0x900/0x900
[  197.887069]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  197.892611]  cache_grow_begin+0xa5/0x8c0
[  197.896677]  ? do_raw_spin_unlock+0xa7/0x330
[  197.901106]  fallback_alloc+0x204/0x2e0
[  197.905089]  ____cache_alloc_node+0x1c7/0x1e0
[  197.909588]  kmem_cache_alloc_node+0xe3/0x730
[  197.914081]  ? ipv6_get_ifaddr+0x42e/0x620
[  197.918338]  __alloc_skb+0x119/0x770
[  197.922076]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  197.927355]  ? netdev_alloc_frag+0x1f0/0x1f0
[  197.931762]  ? lock_downgrade+0x900/0x900
[  197.935931]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  197.941472]  ? refcount_sub_and_test_checked+0x203/0x310
[  197.946934]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  197.952384]  ? addrconf_rs_timer+0x690/0x690
[  197.956819]  ndisc_alloc_skb+0x144/0x340
[  197.960885]  ndisc_send_rs+0x331/0x6e0
[  197.964777]  addrconf_rs_timer+0x314/0x690
[  197.969022]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  197.973267]  call_timer_fn+0x272/0x920
[  197.977171]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  197.981407]  ? process_timeout+0x40/0x40
[  197.985497]  ? mark_held_locks+0xc7/0x130
[  197.989659]  ? _raw_spin_unlock_irq+0x27/0x80
[  197.994162]  ? _raw_spin_unlock_irq+0x27/0x80
[  197.998661]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  198.002898]  ? lockdep_hardirqs_on+0x296/0x5b0
[  198.007484]  ? trace_hardirqs_on+0xbd/0x310
[  198.011804]  ? kasan_check_read+0x11/0x20
[  198.015948]  ? __run_timers+0x7da/0xc70
[  198.019923]  ? trace_hardirqs_off_caller+0x310/0x310
[  198.025037]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  198.029267]  __run_timers+0x7e5/0xc70
[  198.033078]  ? timer_fixup_init+0x70/0x70
[  198.037231]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  198.042250]  ? zap_class+0x640/0x640
[  198.045980]  ? print_usage_bug+0xc0/0xc0
[  198.050045]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  198.055256]  ? find_held_lock+0x36/0x1c0
[  198.059320]  ? zap_class+0x640/0x640
[  198.063055]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  198.068595]  ? check_preemption_disabled+0x48/0x280
[  198.073634]  ? __lock_is_held+0xb5/0x140
[  198.077697]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  198.083231]  ? check_preemption_disabled+0x48/0x280
[  198.088253]  run_timer_softirq+0x52/0xb0
[  198.092313]  ? rcu_read_lock_sched_held+0x14f/0x180
[  198.097328]  __do_softirq+0x308/0xb7e
[  198.101132]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  198.105649]  ? lock_downgrade+0x900/0x900
[  198.109801]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  198.114910]  ? pvclock_read_flags+0x160/0x160
[  198.119424]  ? lapic_next_event+0x5a/0x90
[  198.123586]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  198.129130]  ? kvm_clock_read+0x18/0x30
[  198.133104]  ? kvm_sched_clock_read+0x9/0x20
[  198.137525]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  198.143095]  ? check_preemption_disabled+0x48/0x280
[  198.148120]  irq_exit+0x17f/0x1c0
[  198.151574]  smp_apic_timer_interrupt+0x1cb/0x760
[  198.156415]  ? smp_reschedule_interrupt+0x109/0x650
[  198.161448]  ? smp_call_function_single_interrupt+0x650/0x650
[  198.167330]  ? interrupt_entry+0xb5/0xc0
[  198.171393]  ? trace_hardirqs_off_caller+0xbb/0x310
[  198.176433]  ? trace_hardirqs_off_caller+0xbb/0x310
[  198.181447]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  198.186288]  ? trace_hardirqs_on_caller+0x310/0x310
[  198.191299]  ? trace_hardirqs_on_caller+0x310/0x310
[  198.196333]  ? task_prio+0x50/0x50
[  198.199877]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  198.205418]  ? check_preemption_disabled+0x48/0x280
[  198.210442]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  198.215292]  apic_timer_interrupt+0xf/0x20
[  198.219519]  </IRQ>
[  198.221763] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  198.226962] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  198.245859] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  198.253563] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  198.260827] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  198.268093] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  198.275357] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  198.282621] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  198.289942]  retint_kernel+0x1b/0x2d
[  198.293667] RIP: 0010:dump_stack+0x358/0x39d
[  198.298071] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  198.316967] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  198.324676] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  198.331944] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  198.339209] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  198.346476] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  198.353739] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  198.361028]  ? dump_stack+0x34f/0x39d
[  198.364857]  ? dump_stack_print_info.cold.1+0x20/0x20
[  198.370066]  ? mark_held_locks+0x130/0x130
[  198.374297]  ? mark_held_locks+0x130/0x130
[  198.378544]  dump_header+0x27b/0xf72
[  198.382269]  ? pagefault_out_of_memory+0x197/0x197
[  198.387218]  ? __lock_acquire+0x62f/0x4c20
[  198.391455]  ? print_usage_bug+0xc0/0xc0
[  198.395523]  ? zap_class+0x640/0x640
[  198.399240]  ? print_usage_bug+0xc0/0xc0
[  198.403327]  ? print_usage_bug+0xc0/0xc0
[  198.407388]  ? print_usage_bug+0xc0/0xc0
[  198.411455]  ? find_held_lock+0x36/0x1c0
[  198.415529]  ? mark_held_locks+0xc7/0x130
[  198.419680]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  198.424781]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  198.429898]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  198.434479]  ? trace_hardirqs_on+0xbd/0x310
[  198.438798]  ? kasan_check_read+0x11/0x20
[  198.442943]  ? ___ratelimit+0x3b4/0x672
[  198.446919]  ? trace_hardirqs_off_caller+0x310/0x310
[  198.452026]  ? trace_hardirqs_on+0x310/0x310
[  198.456437]  ? lock_downgrade+0x900/0x900
[  198.460588]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  198.465691]  ? ___ratelimit+0x3b9/0x672
[  198.469667]  ? idr_get_free+0xf70/0xf70
[  198.473650]  ? kasan_check_read+0x11/0x20
[  198.477799]  ? do_raw_spin_unlock+0xa7/0x330
[  198.482218]  oom_kill_process.cold.27+0x10/0x903
[  198.486972]  ? zap_class+0x640/0x640
[  198.490714]  ? _raw_spin_unlock+0x2c/0x50
[  198.494863]  ? oom_badness+0xe6/0xaa0
[  198.498661]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  198.503619]  ? kasan_check_read+0x11/0x20
[  198.507786]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  198.513061]  ? oom_evaluate_task+0x540/0x540
[  198.517472]  ? find_held_lock+0x36/0x1c0
[  198.521542]  ? out_of_memory+0x974/0x1430
[  198.525690]  ? lock_downgrade+0x900/0x900
[  198.529843]  ? check_preemption_disabled+0x48/0x280
[  198.534861]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  198.539787]  ? kasan_check_read+0x11/0x20
[  198.543937]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  198.549212]  ? rcu_softirq_qs+0x20/0x20
[  198.553195]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  198.558727]  ? oom_evaluate_task+0x302/0x540
[  198.563137]  out_of_memory+0xa84/0x1430
[  198.567125]  ? oom_killer_disable+0x3a0/0x3a0
[  198.571631]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  198.576566]  ? __ww_mutex_check_waiters+0x160/0x160
[  198.581592]  __alloc_pages_slowpath+0x232c/0x2de0
[  198.586471]  ? warn_alloc+0x120/0x120
[  198.590274]  ? mark_held_locks+0x130/0x130
[  198.594515]  ? find_get_entry+0xaae/0x1120
[  198.598760]  ? filemap_map_pages+0x1a20/0x1a20
[  198.603347]  ? zap_class+0x640/0x640
[  198.607066]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  198.612606]  ? check_preemption_disabled+0x48/0x280
[  198.617634]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  198.623272]  ? should_fail+0x22d/0xd01
[  198.627181]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  198.632308]  ? zap_class+0x640/0x640
[  198.636052]  ? __lock_is_held+0xb5/0x140
[  198.640119]  ? mark_held_locks+0x130/0x130
[  198.644367]  ? lock_release+0xa00/0xa00
[  198.648355]  ? perf_trace_sched_process_exec+0x860/0x860
[  198.653804]  ? xa_load+0x2ba/0x460
[  198.657346]  ? lock_downgrade+0x900/0x900
[  198.661501]  ? __might_sleep+0x95/0x190
[  198.665485]  __alloc_pages_nodemask+0xad8/0xea0
[  198.670201]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  198.675230]  ? __page_cache_alloc+0x191/0x5c0
[  198.679721]  ? xa_load+0x2e1/0x460
[  198.683259]  ? xa_clear_mark+0x40/0x40
[  198.687155]  ? zap_class+0x640/0x640
[  198.690877]  ? zap_class+0x640/0x640
[  198.694600]  ? zap_class+0x640/0x640
[  198.698341]  ? __do_page_cache_readahead+0x663/0x810
[  198.703451]  ? find_held_lock+0x36/0x1c0
[  198.707516]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  198.713071]  alloc_pages_current+0x173/0x350
[  198.717516]  __page_cache_alloc+0x38c/0x5c0
[  198.721835]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  198.726763]  ? kasan_check_read+0x11/0x20
[  198.730908]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  198.736194]  ? generic_perform_write+0x6a0/0x6a0
[  198.740957]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  198.746498]  ? check_preemption_disabled+0x48/0x280
[  198.751524]  filemap_fault+0x1595/0x25f0
[  198.755747]  ? __lock_page_or_retry+0xa00/0xa00
[  198.760433]  ? mark_held_locks+0x130/0x130
[  198.764675]  ? filemap_map_pages+0xd6b/0x1a20
[  198.769182]  ? lock_downgrade+0x900/0x900
[  198.773356]  ? check_preemption_disabled+0x48/0x280
[  198.778379]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  198.783310]  ? kasan_check_read+0x11/0x20
[  198.787455]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  198.792734]  ? rcu_softirq_qs+0x20/0x20
[  198.796752]  ? filemap_map_pages+0xd92/0x1a20
[  198.801260]  ? find_get_entries_tag+0x1400/0x1400
[  198.806120]  ? debug_object_destroy+0x2b0/0x2b0
[  198.810795]  ? lock_pi_update_atomic+0x150/0x150
[  198.815556]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  198.821104]  ? lock_acquire+0x1ed/0x520
[  198.825093]  ? ext4_filemap_fault+0x7a/0xad
[  198.829444]  ? lock_release+0xa00/0xa00
[  198.833414]  ? perf_trace_sched_process_exec+0x860/0x860
[  198.838866]  ? print_usage_bug+0xc0/0xc0
[  198.842928]  ? print_usage_bug+0xc0/0xc0
[  198.847002]  ? down_read+0x8d/0x120
[  198.850635]  ? ext4_filemap_fault+0x7a/0xad
[  198.854959]  ? __down_interruptible+0x700/0x700
[  198.859648]  ext4_filemap_fault+0x82/0xad
[  198.863799]  __do_fault+0x100/0x6b0
[  198.867433]  ? pmd_devmap_trans_unstable+0x220/0x220
[  198.872553]  ? mark_held_locks+0x130/0x130
[  198.876788]  ? mark_held_locks+0x130/0x130
[  198.881039]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  198.885828]  ? retint_kernel+0x2d/0x2d
[  198.889719]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  198.895264]  __handle_mm_fault+0x3ea0/0x5be0
[  198.899674]  ? perf_trace_lock+0x7a0/0x7a0
[  198.903914]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  198.908781]  ? __switch_to_asm+0x34/0x70
[  198.912844]  ? __switch_to_asm+0x34/0x70
[  198.916922]  ? zap_class+0x640/0x640
[  198.920641]  ? zap_class+0x640/0x640
[  198.924359]  ? __x64_sys_futex+0x53e/0x6a0
[  198.928638]  ? find_held_lock+0x36/0x1c0
[  198.932732]  ? handle_mm_fault+0x42a/0xc70
[  198.936966]  ? lock_downgrade+0x900/0x900
[  198.941128]  ? check_preemption_disabled+0x48/0x280
[  198.946151]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  198.951092]  ? kasan_check_read+0x11/0x20
[  198.955241]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  198.960514]  ? rcu_softirq_qs+0x20/0x20
[  198.964487]  ? trace_hardirqs_off_caller+0x310/0x310
[  198.969592]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  198.975159]  ? check_preemption_disabled+0x48/0x280
[  198.980217]  handle_mm_fault+0x54f/0xc70
[  198.984294]  ? __handle_mm_fault+0x5be0/0x5be0
[  198.988895]  ? find_vma+0x34/0x190
[  198.992442]  __do_page_fault+0x5e8/0xe60
[  198.996516]  ? trace_hardirqs_off+0xb8/0x310
[  199.000932]  do_page_fault+0xf2/0x7e0
[  199.004737]  ? vmalloc_sync_all+0x30/0x30
[  199.008883]  ? error_entry+0x70/0xd0
[  199.012599]  ? trace_hardirqs_off_caller+0xbb/0x310
[  199.017621]  ? trace_hardirqs_on_caller+0xc0/0x310
[  199.022561]  ? syscall_return_slowpath+0x5e0/0x5e0
[  199.027491]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  199.032334]  ? trace_hardirqs_on_caller+0x310/0x310
[  199.037348]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  199.042816]  ? prepare_exit_to_usermode+0x291/0x3b0
[  199.047834]  ? page_fault+0x8/0x30
[  199.051390]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  199.056251]  ? page_fault+0x8/0x30
[  199.059794]  page_fault+0x1e/0x30
[  199.063257] RIP: 0033:0x4290d7
[  199.066475] Code: Bad RIP value.
[  199.069833] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  199.075193] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  199.082460] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  199.089729] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  199.096995] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  199.104263] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  199.111564] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  199.111654] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  199.118844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  199.118853] Call Trace:
[  199.125451] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  199.134705]  <IRQ>
[  199.137275] syz-fuzzer cpuset=/ mems_allowed=0
[  199.147506]  dump_stack+0x244/0x39d
[  199.157826]  ? dump_stack_print_info.cold.1+0x20/0x20
[  199.163047]  warn_alloc.cold.116+0xb7/0x1bd
[  199.167372]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  199.172216]  ? lock_downgrade+0x900/0x900
[  199.176371]  ? trace_hardirqs_off+0xb8/0x310
[  199.180796]  ? trace_hardirqs_off+0xb8/0x310
[  199.185225]  __alloc_pages_slowpath+0x2651/0x2de0
[  199.190093]  ? warn_alloc+0x120/0x120
[  199.193893]  ? print_usage_bug+0xc0/0xc0
[  199.197956]  ? warn_alloc+0x120/0x120
[  199.201759]  ? warn_alloc+0x120/0x120
[  199.205607]  ? print_usage_bug+0xc0/0xc0
[  199.209678]  ? print_usage_bug+0xc0/0xc0
[  199.213758]  ? __lock_acquire+0x62f/0x4c20
[  199.218003]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  199.223544]  ? should_fail+0x22d/0xd01
[  199.227469]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  199.232579]  ? __lock_acquire+0x62f/0x4c20
[  199.236820]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  199.241939]  ? __lock_acquire+0x62f/0x4c20
[  199.246174]  ? should_fail+0x22d/0xd01
[  199.250067]  ? find_held_lock+0x36/0x1c0
[  199.254146]  ? mark_held_locks+0x130/0x130
[  199.258391]  ? mark_held_locks+0x130/0x130
[  199.262638]  ? zap_class+0x640/0x640
[  199.266362]  ? zap_class+0x640/0x640
[  199.270100]  ? print_usage_bug+0xc0/0xc0
[  199.274168]  ? do_raw_spin_unlock+0xa7/0x330
[  199.278586]  ? zap_class+0x640/0x640
[  199.282346]  ? print_usage_bug+0xc0/0xc0
[  199.286410]  ? wq_watchdog_touch+0x9c/0xfe
[  199.290668]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  199.296230]  ? check_preemption_disabled+0x48/0x280
[  199.301281]  ? __lock_is_held+0xb5/0x140
[  199.305390]  __alloc_pages_nodemask+0xad8/0xea0
[  199.310096]  ? zap_class+0x640/0x640
[  199.313819]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  199.318862]  ? find_held_lock+0x36/0x1c0
[  199.322946]  ? ____cache_alloc_node+0x1c7/0x1e0
[  199.327635]  ? lock_downgrade+0x900/0x900
[  199.331816]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  199.337381]  cache_grow_begin+0xa5/0x8c0
[  199.341461]  ? do_raw_spin_unlock+0xa7/0x330
[  199.345889]  fallback_alloc+0x204/0x2e0
[  199.349884]  ____cache_alloc_node+0x1c7/0x1e0
[  199.354415]  kmem_cache_alloc_node+0xe3/0x730
[  199.358942]  ? ipv6_get_ifaddr+0x42e/0x620
[  199.363225]  __alloc_skb+0x119/0x770
[  199.366951]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  199.372247]  ? netdev_alloc_frag+0x1f0/0x1f0
[  199.376676]  ? lock_downgrade+0x900/0x900
[  199.380845]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  199.386400]  ? refcount_sub_and_test_checked+0x203/0x310
[  199.391870]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  199.397336]  ? addrconf_rs_timer+0x690/0x690
[  199.401768]  ndisc_alloc_skb+0x144/0x340
[  199.405845]  ndisc_send_rs+0x331/0x6e0
[  199.409753]  addrconf_rs_timer+0x314/0x690
[  199.414007]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  199.418292]  call_timer_fn+0x272/0x920
[  199.422192]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  199.426449]  ? process_timeout+0x40/0x40
[  199.430524]  ? __run_timers+0x7da/0xc70
[  199.434508]  ? _raw_spin_unlock_irq+0x27/0x80
[  199.439015]  ? _raw_spin_unlock_irq+0x27/0x80
[  199.443515]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  199.447757]  ? lockdep_hardirqs_on+0x296/0x5b0
[  199.452350]  ? trace_hardirqs_on+0xbd/0x310
[  199.456685]  ? kasan_check_read+0x11/0x20
[  199.460837]  ? __run_timers+0x7da/0xc70
[  199.464817]  ? trace_hardirqs_off_caller+0x310/0x310
[  199.469948]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  199.474189]  __run_timers+0x7e5/0xc70
[  199.478006]  ? timer_fixup_init+0x70/0x70
[  199.482160]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  199.487198]  ? zap_class+0x640/0x640
[  199.490918]  ? enqueue_hrtimer+0x1a5/0x560
[  199.495152]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  199.500356]  ? find_held_lock+0x36/0x1c0
[  199.504446]  ? zap_class+0x640/0x640
[  199.508161]  ? pvclock_read_flags+0x160/0x160
[  199.512667]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  199.518206]  ? check_preemption_disabled+0x48/0x280
[  199.523233]  ? __lock_is_held+0xb5/0x140
[  199.527309]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  199.532851]  ? check_preemption_disabled+0x48/0x280
[  199.537905]  run_timer_softirq+0x52/0xb0
[  199.541968]  ? rcu_read_lock_sched_held+0x14f/0x180
[  199.546983]  __do_softirq+0x308/0xb7e
[  199.550785]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  199.555283]  ? lock_downgrade+0x900/0x900
[  199.559456]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  199.564581]  ? pvclock_read_flags+0x160/0x160
[  199.569086]  ? lapic_next_event+0x5a/0x90
[  199.573260]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  199.578802]  ? kvm_clock_read+0x18/0x30
[  199.582786]  ? kvm_sched_clock_read+0x9/0x20
[  199.587215]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  199.592757]  ? check_preemption_disabled+0x48/0x280
[  199.597781]  irq_exit+0x17f/0x1c0
[  199.601252]  smp_apic_timer_interrupt+0x1cb/0x760
[  199.606094]  ? smp_reschedule_interrupt+0x109/0x650
[  199.611122]  ? smp_call_function_single_interrupt+0x650/0x650
[  199.617014]  ? interrupt_entry+0xb5/0xc0
[  199.621092]  ? trace_hardirqs_off_caller+0xbb/0x310
[  199.626121]  ? trace_hardirqs_off_caller+0xbb/0x310
[  199.631159]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  199.636007]  ? trace_hardirqs_on_caller+0x310/0x310
[  199.641031]  ? trace_hardirqs_on_caller+0x310/0x310
[  199.646054]  ? task_prio+0x50/0x50
[  199.649606]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  199.655179]  ? check_preemption_disabled+0x48/0x280
[  199.660215]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  199.665067]  apic_timer_interrupt+0xf/0x20
[  199.669303]  </IRQ>
[  199.671544] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  199.676493] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  199.695391] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  199.703096] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  199.710361] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  199.717636] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  199.724913] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  199.732178] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  199.739489]  skb_clone+0x1bb/0x500
[  199.743033]  ? skb_split+0x11e0/0x11e0
[  199.746925]  ? preempt_notifier_register+0x200/0x200
[  199.752028]  ? __switch_to_asm+0x34/0x70
[  199.756088]  ? __switch_to_asm+0x34/0x70
[  199.760154]  ? __switch_to_asm+0x40/0x70
[  199.764222]  ? __switch_to_asm+0x34/0x70
[  199.768288]  ? __switch_to_asm+0x40/0x70
[  199.772350]  ? __switch_to_asm+0x40/0x70
[  199.776425]  ? __switch_to_asm+0x34/0x70
[  199.780489]  ? __switch_to_asm+0x34/0x70
[  199.784551]  ? __switch_to_asm+0x40/0x70
[  199.788607]  ? __switch_to_asm+0x34/0x70
[  199.792699]  bpf_clone_redirect+0xb9/0x490
[  199.796942]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  199.801975]  ? __sched_text_start+0x8/0x8
[  199.806126]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  199.810706]  ? retint_kernel+0x2d/0x2d
[  199.814598]  ? trace_hardirqs_on_caller+0xc0/0x310
[  199.819543]  ? find_held_lock+0x36/0x1c0
[  199.823614]  ? lock_acquire+0x1ed/0x520
[  199.827605]  ? bpf_test_run+0x3cb/0x780
[  199.831598]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  199.837145]  ? check_preemption_disabled+0x48/0x280
[  199.842175]  ? kasan_check_read+0x11/0x20
[  199.846326]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  199.851604]  ? rcu_softirq_qs+0x20/0x20
[  199.855594]  ? preempt_schedule+0x4d/0x60
[  199.859759]  ? ___preempt_schedule+0x16/0x18
[  199.864191]  ? bpf_test_run+0x25d/0x780
[  199.868188]  ? netlink_diag_dump+0x2a0/0x2a0
[  199.872606]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  199.878193]  ? bpf_test_init.isra.10+0x70/0x100
[  199.882878]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  199.887673]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  199.892534]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  199.898097]  ? fput+0x130/0x1a0
[  199.901435]  ? __bpf_prog_get+0x9b/0x290
[  199.905511]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  199.910360]  ? bpf_prog_test_run+0x130/0x1a0
[  199.914794]  ? __x64_sys_bpf+0x3db/0x520
[  199.918859]  ? bpf_prog_get+0x20/0x20
[  199.922691]  ? do_syscall_64+0x1b9/0x820
[  199.926757]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  199.932137]  ? syscall_return_slowpath+0x5e0/0x5e0
[  199.937091]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  199.941933]  ? trace_hardirqs_on_caller+0x310/0x310
[  199.946967]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  199.951984]  ? prepare_exit_to_usermode+0x291/0x3b0
[  199.957024]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  199.961877]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  199.967263] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  199.967269] warn_alloc_show_mem: 1 callbacks suppressed
[  199.967276] Mem-Info:
[  199.974289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  199.979670] active_anon:57128 inactive_anon:971 isolated_anon:0
[  199.979670]  active_file:40 inactive_file:20 isolated_file:0
[  199.979670]  unevictable:0 dirty:11 writeback:0 unstable:0
[  199.979670]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  199.979670]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  199.979670]  free:13615 free_pcp:64 free_cma:0
[  199.982035] Call Trace:
[  199.991426] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  200.024373]  <IRQ>
[  200.026965] 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
[  200.054911]  dump_stack+0x244/0x39d
[  200.057033] lowmem_reserve[]: 0 2818 6321 6321
[  200.083153]  ? dump_stack_print_info.cold.1+0x20/0x20
[  200.086749] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  200.091333]  warn_alloc.cold.116+0xb7/0x1bd
[  200.096487] lowmem_reserve[]: 0 0 3503 3503
[  200.123980]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  200.128286] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  200.132614]  ? lock_downgrade+0x900/0x900
[  200.137435] lowmem_reserve[]: 0 0 0 0
[  200.166599]  ? trace_hardirqs_off+0xb8/0x310
[  200.170720] 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
[  200.174517]  ? trace_hardirqs_off+0xb8/0x310
[  200.178896] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  200.192416]  __alloc_pages_slowpath+0x2651/0x2de0
[  200.196794] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  200.211918]  ? warn_alloc+0x120/0x120
[  200.216721] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  200.232242]  ? print_usage_bug+0xc0/0xc0
[  200.236024] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  200.244844]  ? warn_alloc+0x120/0x120
[  200.248878] 5171 total pagecache pages
[  200.257442]  ? warn_alloc+0x120/0x120
[  200.261223] 0 pages in swap cache
[  200.265110]  ? print_usage_bug+0xc0/0xc0
[  200.268889] Swap cache stats: add 0, delete 0, find 0/0
[  200.272332]  ? kvm_clock_read+0x18/0x30
[  200.276368] Free swap  = 0kB
[  200.281735]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  200.285680] Total swap = 0kB
[  200.288694]  ? print_usage_bug+0xc0/0xc0
[  200.293686] 1965979 pages RAM
[  200.296698]  ? __lock_acquire+0x62f/0x4c20
[  200.300735] 0 pages HighMem/MovableOnly
[  200.303840]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  200.308049] 342854 pages reserved
[  200.312015]  ? should_fail+0x22d/0xd01
[  200.317524] 0 pages cma reserved
[  200.320971]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  200.324910] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  200.328210]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  200.333548] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  200.339936]  ? __lock_acquire+0x62f/0x4c20
[  200.345011] syz-executor2 cpuset=syz2 mems_allowed=0
[  200.355487]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  200.369876]  ? __lock_acquire+0x62f/0x4c20
[  200.374107]  ? should_fail+0x22d/0xd01
[  200.377994]  ? rcu_irq_exit+0x1a2/0x390
[  200.381976]  ? mark_held_locks+0x130/0x130
[  200.386214]  ? mark_held_locks+0x130/0x130
[  200.390454]  ? mark_held_locks+0xc7/0x130
[  200.394602]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  200.399631]  ? zap_class+0x640/0x640
[  200.403344]  ? print_usage_bug+0xc0/0xc0
[  200.407411]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  200.412949]  ? check_preemption_disabled+0x48/0x280
[  200.417973]  ? __lock_is_held+0xb5/0x140
[  200.422040]  __alloc_pages_nodemask+0xad8/0xea0
[  200.426713]  ? zap_class+0x640/0x640
[  200.430430]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  200.435457]  ? find_held_lock+0x36/0x1c0
[  200.439526]  ? ____cache_alloc_node+0x1c7/0x1e0
[  200.444198]  ? lock_downgrade+0x900/0x900
[  200.448353]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  200.453896]  cache_grow_begin+0xa5/0x8c0
[  200.457958]  ? do_raw_spin_unlock+0xa7/0x330
[  200.462373]  fallback_alloc+0x204/0x2e0
[  200.466353]  ____cache_alloc_node+0x1c7/0x1e0
[  200.470853]  kmem_cache_alloc_node+0xe3/0x730
[  200.475347]  ? ipv6_get_ifaddr+0x42e/0x620
[  200.479590]  __alloc_skb+0x119/0x770
[  200.483306]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  200.488584]  ? netdev_alloc_frag+0x1f0/0x1f0
[  200.492993]  ? lock_downgrade+0x900/0x900
[  200.497154]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  200.502692]  ? refcount_sub_and_test_checked+0x203/0x310
[  200.508144]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  200.513602]  ? addrconf_rs_timer+0x690/0x690
[  200.518034]  ndisc_alloc_skb+0x144/0x340
[  200.522130]  ndisc_send_rs+0x331/0x6e0
[  200.526026]  addrconf_rs_timer+0x314/0x690
[  200.530269]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  200.534514]  call_timer_fn+0x272/0x920
[  200.538400]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  200.542639]  ? process_timeout+0x40/0x40
[  200.546714]  ? mark_held_locks+0xc7/0x130
[  200.550862]  ? _raw_spin_unlock_irq+0x27/0x80
[  200.555378]  ? _raw_spin_unlock_irq+0x27/0x80
[  200.559871]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  200.564102]  ? lockdep_hardirqs_on+0x296/0x5b0
[  200.568711]  ? trace_hardirqs_on+0xbd/0x310
[  200.573031]  ? kasan_check_read+0x11/0x20
[  200.577178]  ? __run_timers+0x7da/0xc70
[  200.581203]  ? trace_hardirqs_off_caller+0x310/0x310
[  200.586317]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  200.590554]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  200.594786]  __run_timers+0x7e5/0xc70
[  200.598595]  ? timer_fixup_init+0x70/0x70
[  200.602755]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  200.607779]  ? zap_class+0x640/0x640
[  200.611514]  ? print_usage_bug+0xc0/0xc0
[  200.615575]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  200.620774]  ? find_held_lock+0x36/0x1c0
[  200.624843]  ? zap_class+0x640/0x640
[  200.628566]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  200.634101]  ? check_preemption_disabled+0x48/0x280
[  200.639125]  ? __lock_is_held+0xb5/0x140
[  200.643188]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  200.648722]  ? check_preemption_disabled+0x48/0x280
[  200.653757]  run_timer_softirq+0x52/0xb0
[  200.657824]  ? rcu_read_lock_sched_held+0x14f/0x180
[  200.662839]  __do_softirq+0x308/0xb7e
[  200.666694]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  200.671186]  ? lock_downgrade+0x900/0x900
[  200.675336]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  200.680454]  ? pvclock_read_flags+0x160/0x160
[  200.684950]  ? lapic_next_event+0x5a/0x90
[  200.689105]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  200.694663]  ? kvm_clock_read+0x18/0x30
[  200.698649]  ? kvm_sched_clock_read+0x9/0x20
[  200.703065]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  200.708617]  ? check_preemption_disabled+0x48/0x280
[  200.713659]  irq_exit+0x17f/0x1c0
[  200.717122]  smp_apic_timer_interrupt+0x1cb/0x760
[  200.721972]  ? smp_reschedule_interrupt+0x109/0x650
[  200.726987]  ? smp_call_function_single_interrupt+0x650/0x650
[  200.732872]  ? interrupt_entry+0xb5/0xc0
[  200.736978]  ? trace_hardirqs_off_caller+0xbb/0x310
[  200.741994]  ? trace_hardirqs_off_caller+0xbb/0x310
[  200.747012]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  200.752198]  ? trace_hardirqs_on_caller+0x310/0x310
[  200.757214]  ? trace_hardirqs_on_caller+0x310/0x310
[  200.762228]  ? task_prio+0x50/0x50
[  200.765769]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  200.771310]  ? check_preemption_disabled+0x48/0x280
[  200.776333]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  200.781184]  apic_timer_interrupt+0xf/0x20
[  200.785405]  </IRQ>
[  200.787646] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  200.792834] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  200.811735] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  200.819459] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  200.826727] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  200.834009] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  200.841291] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  200.848553] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  200.855854]  retint_kernel+0x1b/0x2d
[  200.859571] RIP: 0010:dump_stack+0x358/0x39d
[  200.863975] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  200.882888] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  200.890596] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  200.897872] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  200.905142] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  200.912415] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  200.919696] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  200.926981]  ? dump_stack+0x34f/0x39d
[  200.930791]  ? dump_stack_print_info.cold.1+0x20/0x20
[  200.936016]  ? mark_held_locks+0x130/0x130
[  200.940262]  ? mark_held_locks+0x130/0x130
[  200.944515]  dump_header+0x27b/0xf72
[  200.948240]  ? pagefault_out_of_memory+0x197/0x197
[  200.953185]  ? __lock_acquire+0x62f/0x4c20
[  200.957419]  ? print_usage_bug+0xc0/0xc0
[  200.961509]  ? zap_class+0x640/0x640
[  200.965234]  ? print_usage_bug+0xc0/0xc0
[  200.969295]  ? print_usage_bug+0xc0/0xc0
[  200.973377]  ? print_usage_bug+0xc0/0xc0
[  200.977447]  ? find_held_lock+0x36/0x1c0
[  200.981515]  ? mark_held_locks+0xc7/0x130
[  200.985667]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  200.990768]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  200.995870]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  201.000449]  ? trace_hardirqs_on+0xbd/0x310
[  201.004771]  ? kasan_check_read+0x11/0x20
[  201.008922]  ? ___ratelimit+0x3b4/0x672
[  201.012895]  ? trace_hardirqs_off_caller+0x310/0x310
[  201.018003]  ? trace_hardirqs_on+0x310/0x310
[  201.022422]  ? lock_downgrade+0x900/0x900
[  201.026577]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  201.031680]  ? ___ratelimit+0x3b9/0x672
[  201.035661]  ? idr_get_free+0xf70/0xf70
[  201.039659]  ? kasan_check_read+0x11/0x20
[  201.043810]  ? do_raw_spin_unlock+0xa7/0x330
[  201.048241]  oom_kill_process.cold.27+0x10/0x903
[  201.052998]  ? zap_class+0x640/0x640
[  201.056709]  ? _raw_spin_unlock+0x2c/0x50
[  201.060859]  ? oom_badness+0xe6/0xaa0
[  201.064663]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  201.069604]  ? kasan_check_read+0x11/0x20
[  201.073759]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  201.079035]  ? oom_evaluate_task+0x540/0x540
[  201.083446]  ? find_held_lock+0x36/0x1c0
[  201.087527]  ? out_of_memory+0x974/0x1430
[  201.091687]  ? lock_downgrade+0x900/0x900
[  201.095833]  ? check_preemption_disabled+0x48/0x280
[  201.100854]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  201.105785]  ? kasan_check_read+0x11/0x20
[  201.109931]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  201.115203]  ? rcu_softirq_qs+0x20/0x20
[  201.119182]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  201.124720]  ? oom_evaluate_task+0x302/0x540
[  201.129136]  out_of_memory+0xa84/0x1430
[  201.133142]  ? oom_killer_disable+0x3a0/0x3a0
[  201.137656]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  201.142599]  ? __ww_mutex_check_waiters+0x160/0x160
[  201.147662]  __alloc_pages_slowpath+0x232c/0x2de0
[  201.152541]  ? warn_alloc+0x120/0x120
[  201.156347]  ? mark_held_locks+0x130/0x130
[  201.160591]  ? find_get_entry+0xaae/0x1120
[  201.164853]  ? filemap_map_pages+0x1a20/0x1a20
[  201.169452]  ? zap_class+0x640/0x640
[  201.173178]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  201.178725]  ? check_preemption_disabled+0x48/0x280
[  201.183748]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  201.189296]  ? should_fail+0x22d/0xd01
[  201.193192]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  201.198301]  ? zap_class+0x640/0x640
[  201.202044]  ? __lock_is_held+0xb5/0x140
[  201.206136]  ? mark_held_locks+0x130/0x130
[  201.210381]  ? lock_release+0xa00/0xa00
[  201.214358]  ? perf_trace_sched_process_exec+0x860/0x860
[  201.219809]  ? xa_load+0x2ba/0x460
[  201.223354]  ? lock_downgrade+0x900/0x900
[  201.227506]  ? __might_sleep+0x95/0x190
[  201.231504]  __alloc_pages_nodemask+0xad8/0xea0
[  201.236188]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  201.241204]  ? __page_cache_alloc+0x191/0x5c0
[  201.245695]  ? xa_load+0x2e1/0x460
[  201.249239]  ? xa_clear_mark+0x40/0x40
[  201.253149]  ? zap_class+0x640/0x640
[  201.256874]  ? zap_class+0x640/0x640
[  201.260591]  ? zap_class+0x640/0x640
[  201.264312]  ? __do_page_cache_readahead+0x663/0x810
[  201.269426]  ? find_held_lock+0x36/0x1c0
[  201.273497]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  201.279055]  alloc_pages_current+0x173/0x350
[  201.283505]  __page_cache_alloc+0x38c/0x5c0
[  201.287823]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  201.292769]  ? kasan_check_read+0x11/0x20
[  201.296916]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  201.302197]  ? generic_perform_write+0x6a0/0x6a0
[  201.306953]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  201.312489]  ? check_preemption_disabled+0x48/0x280
[  201.317509]  filemap_fault+0x1595/0x25f0
[  201.321583]  ? __lock_page_or_retry+0xa00/0xa00
[  201.326253]  ? mark_held_locks+0x130/0x130
[  201.330495]  ? filemap_map_pages+0xd6b/0x1a20
[  201.334987]  ? lock_downgrade+0x900/0x900
[  201.339140]  ? check_preemption_disabled+0x48/0x280
[  201.344168]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  201.349094]  ? kasan_check_read+0x11/0x20
[  201.353252]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  201.358527]  ? rcu_softirq_qs+0x20/0x20
[  201.362512]  ? filemap_map_pages+0xd92/0x1a20
[  201.367022]  ? find_get_entries_tag+0x1400/0x1400
[  201.371868]  ? debug_object_destroy+0x2b0/0x2b0
[  201.376540]  ? lock_pi_update_atomic+0x150/0x150
[  201.381310]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  201.386883]  ? lock_acquire+0x1ed/0x520
[  201.390854]  ? ext4_filemap_fault+0x7a/0xad
[  201.395186]  ? lock_release+0xa00/0xa00
[  201.399179]  ? perf_trace_sched_process_exec+0x860/0x860
[  201.404644]  ? print_usage_bug+0xc0/0xc0
[  201.408705]  ? print_usage_bug+0xc0/0xc0
[  201.412776]  ? down_read+0x8d/0x120
[  201.416401]  ? ext4_filemap_fault+0x7a/0xad
[  201.420721]  ? __down_interruptible+0x700/0x700
[  201.425439]  ext4_filemap_fault+0x82/0xad
[  201.429610]  __do_fault+0x100/0x6b0
[  201.433249]  ? pmd_devmap_trans_unstable+0x220/0x220
[  201.438356]  ? mark_held_locks+0x130/0x130
[  201.442591]  ? mark_held_locks+0x130/0x130
[  201.446834]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  201.451595]  ? retint_kernel+0x2d/0x2d
[  201.455498]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  201.461066]  __handle_mm_fault+0x3ea0/0x5be0
[  201.465488]  ? perf_trace_lock+0x7a0/0x7a0
[  201.469729]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  201.474585]  ? __switch_to_asm+0x34/0x70
[  201.478647]  ? __switch_to_asm+0x34/0x70
[  201.482738]  ? zap_class+0x640/0x640
[  201.486482]  ? zap_class+0x640/0x640
[  201.490197]  ? __x64_sys_futex+0x53e/0x6a0
[  201.494436]  ? find_held_lock+0x36/0x1c0
[  201.498506]  ? handle_mm_fault+0x42a/0xc70
[  201.502742]  ? lock_downgrade+0x900/0x900
[  201.506895]  ? check_preemption_disabled+0x48/0x280
[  201.511913]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  201.516839]  ? kasan_check_read+0x11/0x20
[  201.520984]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  201.526259]  ? rcu_softirq_qs+0x20/0x20
[  201.530238]  ? trace_hardirqs_off_caller+0x310/0x310
[  201.535341]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  201.540878]  ? check_preemption_disabled+0x48/0x280
[  201.545909]  handle_mm_fault+0x54f/0xc70
[  201.549979]  ? __handle_mm_fault+0x5be0/0x5be0
[  201.554563]  ? find_vma+0x34/0x190
[  201.558108]  __do_page_fault+0x5e8/0xe60
[  201.562182]  ? trace_hardirqs_off+0xb8/0x310
[  201.566598]  do_page_fault+0xf2/0x7e0
[  201.570411]  ? vmalloc_sync_all+0x30/0x30
[  201.574560]  ? error_entry+0x70/0xd0
[  201.578283]  ? trace_hardirqs_off_caller+0xbb/0x310
[  201.583297]  ? trace_hardirqs_on_caller+0xc0/0x310
[  201.588224]  ? syscall_return_slowpath+0x5e0/0x5e0
[  201.593158]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  201.598000]  ? trace_hardirqs_on_caller+0x310/0x310
[  201.603013]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  201.608472]  ? prepare_exit_to_usermode+0x291/0x3b0
[  201.613490]  ? page_fault+0x8/0x30
[  201.617036]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  201.621882]  ? page_fault+0x8/0x30
[  201.625441]  page_fault+0x1e/0x30
[  201.628906] RIP: 0033:0x4290d7
[  201.632106] Code: Bad RIP value.
[  201.635463] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  201.640826] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  201.648089] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  201.655356] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  201.662633] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  201.669898] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  201.677211] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  201.677282] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  201.684482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  201.684487] Call Trace:
[  201.684494]  <IRQ>
[  201.684516]  dump_stack+0x244/0x39d
[  201.684535]  ? dump_stack_print_info.cold.1+0x20/0x20
[  201.691107] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  201.700392]  warn_alloc.cold.116+0xb7/0x1bd
[  201.702947] syz-fuzzer cpuset=/ mems_allowed=0
[  201.705094]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  201.737779]  ? lock_downgrade+0x900/0x900
[  201.741936]  ? trace_hardirqs_off+0xb8/0x310
[  201.746354]  ? trace_hardirqs_off+0xb8/0x310
[  201.750781]  __alloc_pages_slowpath+0x2651/0x2de0
[  201.755673]  ? warn_alloc+0x120/0x120
[  201.759476]  ? print_usage_bug+0xc0/0xc0
[  201.763538]  ? warn_alloc+0x120/0x120
[  201.767342]  ? warn_alloc+0x120/0x120
[  201.771167]  ? print_usage_bug+0xc0/0xc0
[  201.775241]  ? kvm_clock_read+0x18/0x30
[  201.779234]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  201.784255]  ? print_usage_bug+0xc0/0xc0
[  201.788313]  ? __lock_acquire+0x62f/0x4c20
[  201.792564]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  201.798098]  ? should_fail+0x22d/0xd01
[  201.801987]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  201.807269]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  201.812375]  ? __lock_acquire+0x62f/0x4c20
[  201.816616]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  201.821728]  ? __lock_acquire+0x62f/0x4c20
[  201.825961]  ? should_fail+0x22d/0xd01
[  201.829844]  ? rcu_irq_exit+0x1a2/0x390
[  201.833829]  ? mark_held_locks+0x130/0x130
[  201.838068]  ? mark_held_locks+0x130/0x130
[  201.842306]  ? mark_held_locks+0xc7/0x130
[  201.846452]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  201.851471]  ? zap_class+0x640/0x640
[  201.855198]  ? print_usage_bug+0xc0/0xc0
[  201.859259]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  201.864810]  ? check_preemption_disabled+0x48/0x280
[  201.869838]  ? __lock_is_held+0xb5/0x140
[  201.873907]  __alloc_pages_nodemask+0xad8/0xea0
[  201.878577]  ? zap_class+0x640/0x640
[  201.882338]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  201.887393]  ? find_held_lock+0x36/0x1c0
[  201.891463]  ? ____cache_alloc_node+0x1c7/0x1e0
[  201.896134]  ? lock_downgrade+0x900/0x900
[  201.900289]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  201.905829]  cache_grow_begin+0xa5/0x8c0
[  201.909891]  ? do_raw_spin_unlock+0xa7/0x330
[  201.914329]  fallback_alloc+0x204/0x2e0
[  201.918309]  ____cache_alloc_node+0x1c7/0x1e0
[  201.922811]  kmem_cache_alloc_node+0xe3/0x730
[  201.927310]  ? ipv6_get_ifaddr+0x42e/0x620
[  201.931555]  __alloc_skb+0x119/0x770
[  201.935295]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  201.940576]  ? netdev_alloc_frag+0x1f0/0x1f0
[  201.945003]  ? lock_downgrade+0x900/0x900
[  201.949158]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  201.954716]  ? refcount_sub_and_test_checked+0x203/0x310
[  201.960170]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  201.965619]  ? addrconf_rs_timer+0x690/0x690
[  201.970076]  ndisc_alloc_skb+0x144/0x340
[  201.974156]  ndisc_send_rs+0x331/0x6e0
[  201.978050]  addrconf_rs_timer+0x314/0x690
[  201.982293]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  201.986538]  call_timer_fn+0x272/0x920
[  201.990425]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  201.994668]  ? process_timeout+0x40/0x40
[  201.998739]  ? __run_timers+0x7da/0xc70
[  202.002717]  ? _raw_spin_unlock_irq+0x27/0x80
[  202.007209]  ? _raw_spin_unlock_irq+0x27/0x80
[  202.011701]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  202.015936]  ? lockdep_hardirqs_on+0x296/0x5b0
[  202.020524]  ? trace_hardirqs_on+0xbd/0x310
[  202.024849]  ? kasan_check_read+0x11/0x20
[  202.028996]  ? __run_timers+0x7da/0xc70
[  202.032972]  ? trace_hardirqs_off_caller+0x310/0x310
[  202.038082]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  202.042321]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  202.046557]  __run_timers+0x7e5/0xc70
[  202.050366]  ? timer_fixup_init+0x70/0x70
[  202.054545]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  202.059568]  ? zap_class+0x640/0x640
[  202.063286]  ? enqueue_hrtimer+0x1a5/0x560
[  202.067527]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  202.072725]  ? find_held_lock+0x36/0x1c0
[  202.076796]  ? zap_class+0x640/0x640
[  202.080517]  ? pvclock_read_flags+0x160/0x160
[  202.085015]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  202.090554]  ? check_preemption_disabled+0x48/0x280
[  202.095582]  ? __lock_is_held+0xb5/0x140
[  202.099654]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  202.105192]  ? check_preemption_disabled+0x48/0x280
[  202.110218]  run_timer_softirq+0x52/0xb0
[  202.114281]  ? rcu_read_lock_sched_held+0x14f/0x180
[  202.119300]  __do_softirq+0x308/0xb7e
[  202.123117]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  202.127653]  ? lock_downgrade+0x900/0x900
[  202.131807]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  202.136917]  ? pvclock_read_flags+0x160/0x160
[  202.141418]  ? lapic_next_event+0x5a/0x90
[  202.145571]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  202.151111]  ? kvm_clock_read+0x18/0x30
[  202.155090]  ? kvm_sched_clock_read+0x9/0x20
[  202.159503]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  202.165050]  ? check_preemption_disabled+0x48/0x280
[  202.170078]  irq_exit+0x17f/0x1c0
[  202.173534]  smp_apic_timer_interrupt+0x1cb/0x760
[  202.178376]  ? smp_reschedule_interrupt+0x109/0x650
[  202.183393]  ? smp_call_function_single_interrupt+0x650/0x650
[  202.189275]  ? interrupt_entry+0xb5/0xc0
[  202.193339]  ? trace_hardirqs_off_caller+0xbb/0x310
[  202.198357]  ? trace_hardirqs_off_caller+0xbb/0x310
[  202.203374]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  202.208215]  ? trace_hardirqs_on_caller+0x310/0x310
[  202.213245]  ? trace_hardirqs_on_caller+0x310/0x310
[  202.218303]  ? task_prio+0x50/0x50
[  202.221845]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  202.227396]  ? check_preemption_disabled+0x48/0x280
[  202.232456]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  202.237308]  apic_timer_interrupt+0xf/0x20
[  202.241534]  </IRQ>
[  202.243771] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  202.248700] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  202.267602] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  202.275315] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  202.282579] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  202.289843] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  202.297108] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  202.304372] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  202.311700]  skb_clone+0x1bb/0x500
[  202.315245]  ? skb_split+0x11e0/0x11e0
[  202.319137]  ? preempt_notifier_register+0x200/0x200
[  202.324240]  ? __switch_to_asm+0x34/0x70
[  202.328311]  ? __switch_to_asm+0x34/0x70
[  202.332367]  ? __switch_to_asm+0x40/0x70
[  202.336427]  ? __switch_to_asm+0x34/0x70
[  202.340485]  ? __switch_to_asm+0x40/0x70
[  202.344545]  ? __switch_to_asm+0x40/0x70
[  202.348611]  ? __switch_to_asm+0x34/0x70
[  202.352684]  ? __switch_to_asm+0x34/0x70
[  202.356746]  ? __switch_to_asm+0x40/0x70
[  202.360813]  ? __switch_to_asm+0x34/0x70
[  202.364884]  bpf_clone_redirect+0xb9/0x490
[  202.369144]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  202.374163]  ? __sched_text_start+0x8/0x8
[  202.378317]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  202.382897]  ? retint_kernel+0x2d/0x2d
[  202.386786]  ? trace_hardirqs_on_caller+0xc0/0x310
[  202.391721]  ? find_held_lock+0x36/0x1c0
[  202.395792]  ? lock_acquire+0x1ed/0x520
[  202.399769]  ? bpf_test_run+0x3cb/0x780
[  202.403745]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  202.409287]  ? check_preemption_disabled+0x48/0x280
[  202.414307]  ? kasan_check_read+0x11/0x20
[  202.418458]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  202.423731]  ? rcu_softirq_qs+0x20/0x20
[  202.427711]  ? preempt_schedule+0x4d/0x60
[  202.431858]  ? ___preempt_schedule+0x16/0x18
[  202.436276]  ? bpf_test_run+0x25d/0x780
[  202.440258]  ? netlink_diag_dump+0x2a0/0x2a0
[  202.444700]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  202.450235]  ? bpf_test_init.isra.10+0x70/0x100
[  202.454911]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  202.459680]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  202.464559]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  202.470115]  ? fput+0x130/0x1a0
[  202.473404]  ? __bpf_prog_get+0x9b/0x290
[  202.477474]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  202.482318]  ? bpf_prog_test_run+0x130/0x1a0
[  202.486733]  ? __x64_sys_bpf+0x3db/0x520
[  202.490794]  ? bpf_prog_get+0x20/0x20
[  202.494621]  ? do_syscall_64+0x1b9/0x820
[  202.498693]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  202.504058]  ? syscall_return_slowpath+0x5e0/0x5e0
[  202.508988]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  202.513831]  ? trace_hardirqs_on_caller+0x310/0x310
[  202.518852]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  202.523868]  ? prepare_exit_to_usermode+0x291/0x3b0
[  202.528890]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  202.533742]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  202.539127] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  202.539147] warn_alloc_show_mem: 1 callbacks suppressed
[  202.539152] Mem-Info:
[  202.539199] active_anon:57128 inactive_anon:971 isolated_anon:0
[  202.539199]  active_file:40 inactive_file:20 isolated_file:0
[  202.539199]  unevictable:0 dirty:11 writeback:0 unstable:0
[  202.539199]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  202.539199]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  202.539199]  free:13615 free_pcp:64 free_cma:0
[  202.546185] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  202.551553] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  202.553951] Call Trace:
[  202.586910] 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
[  202.596254]  <IRQ>
[  202.624720] lowmem_reserve[]: 0 2818 6321 6321
[  202.627314]  dump_stack+0x244/0x39d
[  202.653393] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  202.655544]  ? dump_stack_print_info.cold.1+0x20/0x20
[  202.660090] lowmem_reserve[]: 0 0 3503 3503
[  202.663722]  warn_alloc.cold.116+0xb7/0x1bd
[  202.691211] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  202.696403]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  202.700692] lowmem_reserve[]: 0 0 0 0
[  202.705014]  ? lock_downgrade+0x900/0x900
[  202.734143] 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
[  202.739001]  ? trace_hardirqs_off+0xb8/0x310
[  202.742767] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  202.746912]  ? trace_hardirqs_off+0xb8/0x310
[  202.760540] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  202.764963]  __alloc_pages_slowpath+0x2651/0x2de0
[  202.780020] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  202.784437]  ? warn_alloc+0x120/0x120
[  202.799913] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  202.804742]  ? print_usage_bug+0xc0/0xc0
[  202.813552] 5171 total pagecache pages
[  202.817341]  ? warn_alloc+0x120/0x120
[  202.825899] 0 pages in swap cache
[  202.829950]  ? warn_alloc+0x120/0x120
[  202.833813] Swap cache stats: add 0, delete 0, find 0/0
[  202.837602]  ? print_usage_bug+0xc0/0xc0
[  202.841032] Free swap  = 0kB
[  202.844823]  ? kvm_clock_read+0x18/0x30
[  202.850161] Total swap = 0kB
[  202.854216]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  202.857206] 1965979 pages RAM
[  202.861192]  ? print_usage_bug+0xc0/0xc0
[  202.864178] 0 pages HighMem/MovableOnly
[  202.864186] 342854 pages reserved
[  202.869206]  ? __lock_acquire+0x62f/0x4c20
[  202.872339] 0 pages cma reserved
[  202.876415]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  202.880441] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  202.883806]  ? should_fail+0x22d/0xd01
[  202.888088] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  202.891377]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  202.896888] syz-executor2 cpuset=syz2 mems_allowed=0
[  202.903383]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  202.933175]  ? __lock_acquire+0x62f/0x4c20
[  202.937440]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  202.942558]  ? __lock_acquire+0x62f/0x4c20
[  202.946793]  ? should_fail+0x22d/0xd01
[  202.950679]  ? rcu_irq_exit+0x1a2/0x390
[  202.954668]  ? mark_held_locks+0x130/0x130
[  202.958917]  ? mark_held_locks+0x130/0x130
[  202.963159]  ? mark_held_locks+0xc7/0x130
[  202.967308]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  202.972354]  ? zap_class+0x640/0x640
[  202.976066]  ? print_usage_bug+0xc0/0xc0
[  202.980133]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  202.985678]  ? check_preemption_disabled+0x48/0x280
[  202.990719]  ? __lock_is_held+0xb5/0x140
[  202.994791]  __alloc_pages_nodemask+0xad8/0xea0
[  202.999459]  ? zap_class+0x640/0x640
[  203.003181]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  203.008206]  ? find_held_lock+0x36/0x1c0
[  203.012291]  ? ____cache_alloc_node+0x1c7/0x1e0
[  203.016963]  ? lock_downgrade+0x900/0x900
[  203.021122]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  203.026687]  cache_grow_begin+0xa5/0x8c0
[  203.030753]  ? do_raw_spin_unlock+0xa7/0x330
[  203.035176]  fallback_alloc+0x204/0x2e0
[  203.039162]  ____cache_alloc_node+0x1c7/0x1e0
[  203.043684]  kmem_cache_alloc_node+0xe3/0x730
[  203.048184]  ? ipv6_get_ifaddr+0x42e/0x620
[  203.052443]  __alloc_skb+0x119/0x770
[  203.056184]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  203.061468]  ? netdev_alloc_frag+0x1f0/0x1f0
[  203.065880]  ? lock_downgrade+0x900/0x900
[  203.070036]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  203.075574]  ? refcount_sub_and_test_checked+0x203/0x310
[  203.081025]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  203.086479]  ? addrconf_rs_timer+0x690/0x690
[  203.090902]  ndisc_alloc_skb+0x144/0x340
[  203.094967]  ndisc_send_rs+0x331/0x6e0
[  203.098861]  addrconf_rs_timer+0x314/0x690
[  203.103105]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  203.107349]  call_timer_fn+0x272/0x920
[  203.111235]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  203.115484]  ? process_timeout+0x40/0x40
[  203.119581]  ? mark_held_locks+0xc7/0x130
[  203.123768]  ? _raw_spin_unlock_irq+0x27/0x80
[  203.128266]  ? _raw_spin_unlock_irq+0x27/0x80
[  203.132762]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  203.136998]  ? lockdep_hardirqs_on+0x296/0x5b0
[  203.141581]  ? trace_hardirqs_on+0xbd/0x310
[  203.145900]  ? kasan_check_read+0x11/0x20
[  203.150045]  ? __run_timers+0x7da/0xc70
[  203.154033]  ? trace_hardirqs_off_caller+0x310/0x310
[  203.159139]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  203.163387]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  203.167642]  __run_timers+0x7e5/0xc70
[  203.171453]  ? timer_fixup_init+0x70/0x70
[  203.175602]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  203.180636]  ? zap_class+0x640/0x640
[  203.184360]  ? print_usage_bug+0xc0/0xc0
[  203.188422]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  203.193622]  ? find_held_lock+0x36/0x1c0
[  203.197696]  ? zap_class+0x640/0x640
[  203.201416]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  203.206953]  ? check_preemption_disabled+0x48/0x280
[  203.211981]  ? __lock_is_held+0xb5/0x140
[  203.216042]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  203.221579]  ? check_preemption_disabled+0x48/0x280
[  203.226598]  run_timer_softirq+0x52/0xb0
[  203.230674]  ? rcu_read_lock_sched_held+0x14f/0x180
[  203.235692]  __do_softirq+0x308/0xb7e
[  203.239497]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  203.243991]  ? lock_downgrade+0x900/0x900
[  203.248176]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  203.253303]  ? pvclock_read_flags+0x160/0x160
[  203.257803]  ? lapic_next_event+0x5a/0x90
[  203.261953]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  203.267502]  ? kvm_clock_read+0x18/0x30
[  203.271488]  ? kvm_sched_clock_read+0x9/0x20
[  203.275896]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  203.281430]  ? check_preemption_disabled+0x48/0x280
[  203.286456]  irq_exit+0x17f/0x1c0
[  203.289910]  smp_apic_timer_interrupt+0x1cb/0x760
[  203.294752]  ? smp_reschedule_interrupt+0x109/0x650
[  203.299772]  ? smp_call_function_single_interrupt+0x650/0x650
[  203.305661]  ? interrupt_entry+0xb5/0xc0
[  203.309755]  ? trace_hardirqs_off_caller+0xbb/0x310
[  203.314773]  ? trace_hardirqs_off_caller+0xbb/0x310
[  203.319791]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  203.324644]  ? trace_hardirqs_on_caller+0x310/0x310
[  203.329689]  ? trace_hardirqs_on_caller+0x310/0x310
[  203.334705]  ? task_prio+0x50/0x50
[  203.338246]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  203.343786]  ? check_preemption_disabled+0x48/0x280
[  203.348809]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  203.353718]  apic_timer_interrupt+0xf/0x20
[  203.357958]  </IRQ>
[  203.360199] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  203.365404] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  203.384311] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  203.392023] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  203.399306] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  203.406605] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  203.413892] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  203.421185] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  203.428512]  retint_kernel+0x1b/0x2d
[  203.432233] RIP: 0010:dump_stack+0x358/0x39d
[  203.436658] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  203.455570] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  203.463288] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  203.470552] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  203.477834] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  203.485101] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  203.492389] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  203.499696]  ? dump_stack+0x34f/0x39d
[  203.503510]  ? dump_stack_print_info.cold.1+0x20/0x20
[  203.508702]  ? mark_held_locks+0x130/0x130
[  203.512938]  ? mark_held_locks+0x130/0x130
[  203.517197]  dump_header+0x27b/0xf72
[  203.520945]  ? pagefault_out_of_memory+0x197/0x197
[  203.525896]  ? __lock_acquire+0x62f/0x4c20
[  203.530398]  ? print_usage_bug+0xc0/0xc0
[  203.534471]  ? zap_class+0x640/0x640
[  203.538185]  ? print_usage_bug+0xc0/0xc0
[  203.542255]  ? print_usage_bug+0xc0/0xc0
[  203.546314]  ? print_usage_bug+0xc0/0xc0
[  203.550383]  ? find_held_lock+0x36/0x1c0
[  203.554449]  ? mark_held_locks+0xc7/0x130
[  203.558615]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  203.563725]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  203.568829]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  203.573410]  ? trace_hardirqs_on+0xbd/0x310
[  203.577732]  ? kasan_check_read+0x11/0x20
[  203.581881]  ? ___ratelimit+0x3b4/0x672
[  203.585853]  ? trace_hardirqs_off_caller+0x310/0x310
[  203.590966]  ? trace_hardirqs_on+0x310/0x310
[  203.595398]  ? lock_downgrade+0x900/0x900
[  203.599571]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  203.604697]  ? ___ratelimit+0x3b9/0x672
[  203.608688]  ? idr_get_free+0xf70/0xf70
[  203.612671]  ? kasan_check_read+0x11/0x20
[  203.616829]  ? do_raw_spin_unlock+0xa7/0x330
[  203.621251]  oom_kill_process.cold.27+0x10/0x903
[  203.626014]  ? zap_class+0x640/0x640
[  203.629731]  ? _raw_spin_unlock+0x2c/0x50
[  203.633876]  ? oom_badness+0xe6/0xaa0
[  203.637675]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  203.642601]  ? kasan_check_read+0x11/0x20
[  203.646753]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  203.652029]  ? oom_evaluate_task+0x540/0x540
[  203.656458]  ? find_held_lock+0x36/0x1c0
[  203.660557]  ? out_of_memory+0x974/0x1430
[  203.664707]  ? lock_downgrade+0x900/0x900
[  203.668858]  ? check_preemption_disabled+0x48/0x280
[  203.673880]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  203.678808]  ? kasan_check_read+0x11/0x20
[  203.682959]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  203.688238]  ? rcu_softirq_qs+0x20/0x20
[  203.692231]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  203.697797]  ? oom_evaluate_task+0x302/0x540
[  203.702207]  out_of_memory+0xa84/0x1430
[  203.706193]  ? oom_killer_disable+0x3a0/0x3a0
[  203.710690]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  203.715632]  ? __ww_mutex_check_waiters+0x160/0x160
[  203.720668]  __alloc_pages_slowpath+0x232c/0x2de0
[  203.725541]  ? warn_alloc+0x120/0x120
[  203.729339]  ? mark_held_locks+0x130/0x130
[  203.733577]  ? find_get_entry+0xaae/0x1120
[  203.737820]  ? filemap_map_pages+0x1a20/0x1a20
[  203.742407]  ? zap_class+0x640/0x640
[  203.746124]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  203.751670]  ? check_preemption_disabled+0x48/0x280
[  203.756685]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  203.762220]  ? should_fail+0x22d/0xd01
[  203.766107]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  203.771211]  ? zap_class+0x640/0x640
[  203.774948]  ? __lock_is_held+0xb5/0x140
[  203.779029]  ? mark_held_locks+0x130/0x130
[  203.783269]  ? lock_release+0xa00/0xa00
[  203.787245]  ? perf_trace_sched_process_exec+0x860/0x860
[  203.792696]  ? xa_load+0x2ba/0x460
[  203.796245]  ? lock_downgrade+0x900/0x900
[  203.800397]  ? __might_sleep+0x95/0x190
[  203.804375]  __alloc_pages_nodemask+0xad8/0xea0
[  203.809049]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  203.814070]  ? __page_cache_alloc+0x191/0x5c0
[  203.818560]  ? xa_load+0x2e1/0x460
[  203.822104]  ? xa_clear_mark+0x40/0x40
[  203.825996]  ? zap_class+0x640/0x640
[  203.830845]  ? zap_class+0x640/0x640
[  203.834569]  ? zap_class+0x640/0x640
[  203.838280]  ? __do_page_cache_readahead+0x663/0x810
[  203.843385]  ? find_held_lock+0x36/0x1c0
[  203.847455]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  203.853000]  alloc_pages_current+0x173/0x350
[  203.857426]  __page_cache_alloc+0x38c/0x5c0
[  203.861764]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  203.866703]  ? kasan_check_read+0x11/0x20
[  203.870848]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  203.876124]  ? generic_perform_write+0x6a0/0x6a0
[  203.880907]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  203.886448]  ? check_preemption_disabled+0x48/0x280
[  203.891485]  filemap_fault+0x1595/0x25f0
[  203.895559]  ? __lock_page_or_retry+0xa00/0xa00
[  203.900228]  ? mark_held_locks+0x130/0x130
[  203.904470]  ? filemap_map_pages+0xd6b/0x1a20
[  203.908966]  ? lock_downgrade+0x900/0x900
[  203.913128]  ? check_preemption_disabled+0x48/0x280
[  203.918154]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  203.923081]  ? kasan_check_read+0x11/0x20
[  203.927227]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  203.932507]  ? rcu_softirq_qs+0x20/0x20
[  203.936498]  ? filemap_map_pages+0xd92/0x1a20
[  203.941033]  ? find_get_entries_tag+0x1400/0x1400
[  203.945884]  ? debug_object_destroy+0x2b0/0x2b0
[  203.950555]  ? lock_pi_update_atomic+0x150/0x150
[  203.955309]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  203.960863]  ? lock_acquire+0x1ed/0x520
[  203.964835]  ? ext4_filemap_fault+0x7a/0xad
[  203.969170]  ? lock_release+0xa00/0xa00
[  203.973140]  ? perf_trace_sched_process_exec+0x860/0x860
[  203.978594]  ? print_usage_bug+0xc0/0xc0
[  203.982666]  ? print_usage_bug+0xc0/0xc0
[  203.986737]  ? down_read+0x8d/0x120
[  203.990359]  ? ext4_filemap_fault+0x7a/0xad
[  203.994676]  ? __down_interruptible+0x700/0x700
[  203.999375]  ext4_filemap_fault+0x82/0xad
[  204.003522]  __do_fault+0x100/0x6b0
[  204.007161]  ? pmd_devmap_trans_unstable+0x220/0x220
[  204.012267]  ? mark_held_locks+0x130/0x130
[  204.016505]  ? mark_held_locks+0x130/0x130
[  204.020742]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  204.025505]  ? retint_kernel+0x2d/0x2d
[  204.029393]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  204.034935]  __handle_mm_fault+0x3ea0/0x5be0
[  204.039356]  ? perf_trace_lock+0x7a0/0x7a0
[  204.043601]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  204.048458]  ? __switch_to_asm+0x34/0x70
[  204.052513]  ? __switch_to_asm+0x34/0x70
[  204.056602]  ? zap_class+0x640/0x640
[  204.060336]  ? zap_class+0x640/0x640
[  204.064046]  ? __x64_sys_futex+0x53e/0x6a0
[  204.068295]  ? find_held_lock+0x36/0x1c0
[  204.072364]  ? handle_mm_fault+0x42a/0xc70
[  204.076613]  ? lock_downgrade+0x900/0x900
[  204.080797]  ? check_preemption_disabled+0x48/0x280
[  204.085818]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  204.090751]  ? kasan_check_read+0x11/0x20
[  204.094895]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  204.100174]  ? rcu_softirq_qs+0x20/0x20
[  204.104153]  ? trace_hardirqs_off_caller+0x310/0x310
[  204.109259]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  204.114800]  ? check_preemption_disabled+0x48/0x280
[  204.119822]  handle_mm_fault+0x54f/0xc70
[  204.123885]  ? __handle_mm_fault+0x5be0/0x5be0
[  204.128469]  ? find_vma+0x34/0x190
[  204.132031]  __do_page_fault+0x5e8/0xe60
[  204.136092]  ? trace_hardirqs_off+0xb8/0x310
[  204.140512]  do_page_fault+0xf2/0x7e0
[  204.144327]  ? vmalloc_sync_all+0x30/0x30
[  204.148479]  ? error_entry+0x70/0xd0
[  204.152201]  ? trace_hardirqs_off_caller+0xbb/0x310
[  204.157212]  ? trace_hardirqs_on_caller+0xc0/0x310
[  204.162140]  ? syscall_return_slowpath+0x5e0/0x5e0
[  204.167089]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  204.171931]  ? trace_hardirqs_on_caller+0x310/0x310
[  204.176945]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  204.182398]  ? prepare_exit_to_usermode+0x291/0x3b0
[  204.187447]  ? page_fault+0x8/0x30
[  204.190990]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  204.195836]  ? page_fault+0x8/0x30
[  204.199374]  page_fault+0x1e/0x30
[  204.202825] RIP: 0033:0x4290d7
[  204.206040] Code: Bad RIP value.
[  204.209412] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  204.214775] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  204.222044] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  204.229311] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  204.236576] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  204.243845] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  204.251154] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  204.251230] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  204.258421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  204.258430] Call Trace:
[  204.265025] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  204.274260]  <IRQ>
[  204.276828] syz-fuzzer cpuset=/ mems_allowed=0
[  204.287046]  dump_stack+0x244/0x39d
[  204.297358]  ? dump_stack_print_info.cold.1+0x20/0x20
[  204.302561]  warn_alloc.cold.116+0xb7/0x1bd
[  204.306884]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  204.311735]  ? lock_downgrade+0x900/0x900
[  204.315894]  ? trace_hardirqs_off+0xb8/0x310
[  204.320306]  ? trace_hardirqs_off+0xb8/0x310
[  204.324721]  __alloc_pages_slowpath+0x2651/0x2de0
[  204.329590]  ? warn_alloc+0x120/0x120
[  204.333427]  ? print_usage_bug+0xc0/0xc0
[  204.337503]  ? warn_alloc+0x120/0x120
[  204.341306]  ? warn_alloc+0x120/0x120
[  204.345109]  ? print_usage_bug+0xc0/0xc0
[  204.349187]  ? print_usage_bug+0xc0/0xc0
[  204.353250]  ? __lock_acquire+0x62f/0x4c20
[  204.357525]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  204.363080]  ? should_fail+0x22d/0xd01
[  204.366985]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  204.372089]  ? __lock_acquire+0x62f/0x4c20
[  204.376331]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  204.381429]  ? __lock_acquire+0x62f/0x4c20
[  204.385664]  ? should_fail+0x22d/0xd01
[  204.389552]  ? find_held_lock+0x36/0x1c0
[  204.393621]  ? mark_held_locks+0x130/0x130
[  204.397892]  ? mark_held_locks+0x130/0x130
[  204.402125]  ? zap_class+0x640/0x640
[  204.405836]  ? zap_class+0x640/0x640
[  204.409555]  ? print_usage_bug+0xc0/0xc0
[  204.413613]  ? do_raw_spin_unlock+0xa7/0x330
[  204.418037]  ? zap_class+0x640/0x640
[  204.421752]  ? print_usage_bug+0xc0/0xc0
[  204.425810]  ? wq_watchdog_touch+0x9c/0xfe
[  204.430051]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  204.435589]  ? check_preemption_disabled+0x48/0x280
[  204.440617]  ? __lock_is_held+0xb5/0x140
[  204.444697]  __alloc_pages_nodemask+0xad8/0xea0
[  204.449366]  ? zap_class+0x640/0x640
[  204.453085]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  204.458115]  ? find_held_lock+0x36/0x1c0
[  204.462191]  ? ____cache_alloc_node+0x1c7/0x1e0
[  204.466865]  ? lock_downgrade+0x900/0x900
[  204.471020]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  204.476572]  cache_grow_begin+0xa5/0x8c0
[  204.480658]  ? do_raw_spin_unlock+0xa7/0x330
[  204.485074]  fallback_alloc+0x204/0x2e0
[  204.489057]  ____cache_alloc_node+0x1c7/0x1e0
[  204.493558]  kmem_cache_alloc_node+0xe3/0x730
[  204.498053]  ? ipv6_get_ifaddr+0x42e/0x620
[  204.502338]  __alloc_skb+0x119/0x770
[  204.506047]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  204.511330]  ? netdev_alloc_frag+0x1f0/0x1f0
[  204.515768]  ? lock_downgrade+0x900/0x900
[  204.519923]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  204.525462]  ? refcount_sub_and_test_checked+0x203/0x310
[  204.530914]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  204.536365]  ? addrconf_rs_timer+0x690/0x690
[  204.540793]  ndisc_alloc_skb+0x144/0x340
[  204.544863]  ndisc_send_rs+0x331/0x6e0
[  204.548766]  addrconf_rs_timer+0x314/0x690
[  204.553005]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  204.557266]  call_timer_fn+0x272/0x920
[  204.561150]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  204.565386]  ? process_timeout+0x40/0x40
[  204.569450]  ? __run_timers+0x7da/0xc70
[  204.573427]  ? _raw_spin_unlock_irq+0x27/0x80
[  204.577921]  ? _raw_spin_unlock_irq+0x27/0x80
[  204.582412]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  204.586655]  ? lockdep_hardirqs_on+0x296/0x5b0
[  204.591236]  ? trace_hardirqs_on+0xbd/0x310
[  204.595558]  ? kasan_check_read+0x11/0x20
[  204.599705]  ? __run_timers+0x7da/0xc70
[  204.603680]  ? trace_hardirqs_off_caller+0x310/0x310
[  204.608799]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  204.613032]  __run_timers+0x7e5/0xc70
[  204.616848]  ? timer_fixup_init+0x70/0x70
[  204.621499]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  204.626522]  ? zap_class+0x640/0x640
[  204.630239]  ? enqueue_hrtimer+0x1a5/0x560
[  204.634477]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  204.639675]  ? find_held_lock+0x36/0x1c0
[  204.643751]  ? zap_class+0x640/0x640
[  204.647469]  ? pvclock_read_flags+0x160/0x160
[  204.651967]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  204.657510]  ? check_preemption_disabled+0x48/0x280
[  204.662535]  ? __lock_is_held+0xb5/0x140
[  204.666595]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  204.672141]  ? check_preemption_disabled+0x48/0x280
[  204.677159]  run_timer_softirq+0x52/0xb0
[  204.681221]  ? rcu_read_lock_sched_held+0x14f/0x180
[  204.686247]  __do_softirq+0x308/0xb7e
[  204.690052]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  204.694545]  ? lock_downgrade+0x900/0x900
[  204.698702]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  204.703812]  ? pvclock_read_flags+0x160/0x160
[  204.708307]  ? lapic_next_event+0x5a/0x90
[  204.712455]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  204.717996]  ? kvm_clock_read+0x18/0x30
[  204.721968]  ? kvm_sched_clock_read+0x9/0x20
[  204.726384]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  204.731953]  ? check_preemption_disabled+0x48/0x280
[  204.737007]  irq_exit+0x17f/0x1c0
[  204.740483]  smp_apic_timer_interrupt+0x1cb/0x760
[  204.745323]  ? smp_reschedule_interrupt+0x109/0x650
[  204.750338]  ? smp_call_function_single_interrupt+0x650/0x650
[  204.756373]  ? interrupt_entry+0xb5/0xc0
[  204.760441]  ? trace_hardirqs_off_caller+0xbb/0x310
[  204.765455]  ? trace_hardirqs_off_caller+0xbb/0x310
[  204.770488]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  204.775334]  ? trace_hardirqs_on_caller+0x310/0x310
[  204.780345]  ? trace_hardirqs_on_caller+0x310/0x310
[  204.785361]  ? task_prio+0x50/0x50
[  204.788907]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  204.794447]  ? check_preemption_disabled+0x48/0x280
[  204.799473]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  204.804324]  apic_timer_interrupt+0xf/0x20
[  204.808554]  </IRQ>
[  204.810796] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  204.815760] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  204.834675] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  204.842378] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  204.849705] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  204.857144] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  204.864421] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  204.871688] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  204.878996]  skb_clone+0x1bb/0x500
[  204.882536]  ? skb_split+0x11e0/0x11e0
[  204.886426]  ? preempt_notifier_register+0x200/0x200
[  204.891528]  ? __switch_to_asm+0x34/0x70
[  204.895591]  ? __switch_to_asm+0x34/0x70
[  204.899673]  ? __switch_to_asm+0x40/0x70
[  204.903732]  ? __switch_to_asm+0x34/0x70
[  204.907792]  ? __switch_to_asm+0x40/0x70
[  204.911851]  ? __switch_to_asm+0x40/0x70
[  204.915907]  ? __switch_to_asm+0x34/0x70
[  204.919970]  ? __switch_to_asm+0x34/0x70
[  204.924026]  ? __switch_to_asm+0x40/0x70
[  204.928083]  ? __switch_to_asm+0x34/0x70
[  204.932147]  bpf_clone_redirect+0xb9/0x490
[  204.936387]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  204.941406]  ? __sched_text_start+0x8/0x8
[  204.945557]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  204.950137]  ? retint_kernel+0x2d/0x2d
[  204.954042]  ? trace_hardirqs_on_caller+0xc0/0x310
[  204.958978]  ? find_held_lock+0x36/0x1c0
[  204.963047]  ? lock_acquire+0x1ed/0x520
[  204.967024]  ? bpf_test_run+0x3cb/0x780
[  204.971000]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  204.976565]  ? check_preemption_disabled+0x48/0x280
[  204.981589]  ? kasan_check_read+0x11/0x20
[  204.985737]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  204.991011]  ? rcu_softirq_qs+0x20/0x20
[  204.994985]  ? preempt_schedule+0x4d/0x60
[  204.999142]  ? ___preempt_schedule+0x16/0x18
[  205.003576]  ? bpf_test_run+0x25d/0x780
[  205.007565]  ? netlink_diag_dump+0x2a0/0x2a0
[  205.011974]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  205.017509]  ? bpf_test_init.isra.10+0x70/0x100
[  205.022186]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  205.026955]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  205.031814]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  205.037352]  ? fput+0x130/0x1a0
[  205.040644]  ? __bpf_prog_get+0x9b/0x290
[  205.044712]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  205.049552]  ? bpf_prog_test_run+0x130/0x1a0
[  205.053967]  ? __x64_sys_bpf+0x3db/0x520
[  205.058026]  ? bpf_prog_get+0x20/0x20
[  205.061851]  ? do_syscall_64+0x1b9/0x820
[  205.065915]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  205.071279]  ? syscall_return_slowpath+0x5e0/0x5e0
[  205.076205]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  205.081047]  ? trace_hardirqs_on_caller+0x310/0x310
[  205.086068]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  205.091084]  ? prepare_exit_to_usermode+0x291/0x3b0
[  205.096150]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  205.101031]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  205.106416] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  205.106421] warn_alloc_show_mem: 1 callbacks suppressed
[  205.106427] Mem-Info:
[  205.113439] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  205.118805] active_anon:57128 inactive_anon:971 isolated_anon:0
[  205.118805]  active_file:40 inactive_file:20 isolated_file:0
[  205.118805]  unevictable:0 dirty:11 writeback:0 unstable:0
[  205.118805]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  205.118805]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  205.118805]  free:13615 free_pcp:64 free_cma:0
[  205.121177] Call Trace:
[  205.130608] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  205.163538]  <IRQ>
[  205.166108] 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
[  205.194079]  dump_stack+0x244/0x39d
[  205.196229] lowmem_reserve[]: 0 2818 6321 6321
[  205.222335]  ? dump_stack_print_info.cold.1+0x20/0x20
[  205.225931] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  205.230514]  warn_alloc.cold.116+0xb7/0x1bd
[  205.235671] lowmem_reserve[]: 0 0 3503 3503
[  205.263164]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  205.267455] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  205.271817]  ? lock_downgrade+0x900/0x900
[  205.276622] lowmem_reserve[]: 0 0 0 0
[  205.305797]  ? trace_hardirqs_off+0xb8/0x310
[  205.309915] 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
[  205.313711]  ? trace_hardirqs_off+0xb8/0x310
[  205.318089] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  205.331620]  __alloc_pages_slowpath+0x2651/0x2de0
[  205.336003] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  205.351117]  ? warn_alloc+0x120/0x120
[  205.355917] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  205.371425]  ? print_usage_bug+0xc0/0xc0
[  205.375210] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  205.384030]  ? warn_alloc+0x120/0x120
[  205.388066] 5171 total pagecache pages
[  205.396637]  ? warn_alloc+0x120/0x120
[  205.400438] 0 pages in swap cache
[  205.404316]  ? print_usage_bug+0xc0/0xc0
[  205.408096] Swap cache stats: add 0, delete 0, find 0/0
[  205.411558]  ? kvm_clock_read+0x18/0x30
[  205.415596] Free swap  = 0kB
[  205.420955]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  205.424911] Total swap = 0kB
[  205.427925]  ? print_usage_bug+0xc0/0xc0
[  205.432917] 1965979 pages RAM
[  205.435933]  ? __lock_acquire+0x62f/0x4c20
[  205.439969] 0 pages HighMem/MovableOnly
[  205.443068]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  205.447291] 342854 pages reserved
[  205.451256]  ? should_fail+0x22d/0xd01
[  205.456765] 0 pages cma reserved
[  205.460209]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  205.464130] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  205.467428]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  205.472781] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  205.479187]  ? __lock_acquire+0x62f/0x4c20
[  205.484268] syz-executor2 cpuset=syz2 mems_allowed=0
[  205.494759]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  205.509165]  ? __lock_acquire+0x62f/0x4c20
[  205.513416]  ? should_fail+0x22d/0xd01
[  205.517317]  ? rcu_irq_exit+0x1a2/0x390
[  205.521305]  ? mark_held_locks+0x130/0x130
[  205.525542]  ? mark_held_locks+0x130/0x130
[  205.529783]  ? mark_held_locks+0xc7/0x130
[  205.533931]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  205.538949]  ? zap_class+0x640/0x640
[  205.542662]  ? print_usage_bug+0xc0/0xc0
[  205.546730]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  205.552281]  ? check_preemption_disabled+0x48/0x280
[  205.557306]  ? __lock_is_held+0xb5/0x140
[  205.561375]  __alloc_pages_nodemask+0xad8/0xea0
[  205.566041]  ? zap_class+0x640/0x640
[  205.569764]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  205.574794]  ? find_held_lock+0x36/0x1c0
[  205.578866]  ? ____cache_alloc_node+0x1c7/0x1e0
[  205.583534]  ? lock_downgrade+0x900/0x900
[  205.587697]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  205.593235]  cache_grow_begin+0xa5/0x8c0
[  205.597296]  ? do_raw_spin_unlock+0xa7/0x330
[  205.601709]  fallback_alloc+0x204/0x2e0
[  205.605688]  ____cache_alloc_node+0x1c7/0x1e0
[  205.610187]  kmem_cache_alloc_node+0xe3/0x730
[  205.614697]  ? ipv6_get_ifaddr+0x42e/0x620
[  205.618939]  __alloc_skb+0x119/0x770
[  205.622657]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  205.627939]  ? netdev_alloc_frag+0x1f0/0x1f0
[  205.632359]  ? lock_downgrade+0x900/0x900
[  205.636527]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  205.642068]  ? refcount_sub_and_test_checked+0x203/0x310
[  205.647521]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  205.652970]  ? addrconf_rs_timer+0x690/0x690
[  205.657390]  ndisc_alloc_skb+0x144/0x340
[  205.661456]  ndisc_send_rs+0x331/0x6e0
[  205.665351]  addrconf_rs_timer+0x314/0x690
[  205.669589]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  205.673836]  call_timer_fn+0x272/0x920
[  205.677725]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  205.681969]  ? process_timeout+0x40/0x40
[  205.686040]  ? mark_held_locks+0xc7/0x130
[  205.690188]  ? _raw_spin_unlock_irq+0x27/0x80
[  205.694701]  ? _raw_spin_unlock_irq+0x27/0x80
[  205.699193]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  205.703427]  ? lockdep_hardirqs_on+0x296/0x5b0
[  205.708013]  ? trace_hardirqs_on+0xbd/0x310
[  205.712332]  ? kasan_check_read+0x11/0x20
[  205.716479]  ? __run_timers+0x7da/0xc70
[  205.720451]  ? trace_hardirqs_off_caller+0x310/0x310
[  205.725554]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  205.729796]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  205.734039]  __run_timers+0x7e5/0xc70
[  205.737848]  ? timer_fixup_init+0x70/0x70
[  205.741998]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  205.747014]  ? zap_class+0x640/0x640
[  205.750747]  ? print_usage_bug+0xc0/0xc0
[  205.754809]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  205.760013]  ? find_held_lock+0x36/0x1c0
[  205.764077]  ? zap_class+0x640/0x640
[  205.767801]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  205.773338]  ? check_preemption_disabled+0x48/0x280
[  205.778364]  ? __lock_is_held+0xb5/0x140
[  205.782440]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  205.787982]  ? check_preemption_disabled+0x48/0x280
[  205.793005]  run_timer_softirq+0x52/0xb0
[  205.797065]  ? rcu_read_lock_sched_held+0x14f/0x180
[  205.802081]  __do_softirq+0x308/0xb7e
[  205.805895]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  205.810389]  ? lock_downgrade+0x900/0x900
[  205.814539]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  205.819657]  ? pvclock_read_flags+0x160/0x160
[  205.824187]  ? lapic_next_event+0x5a/0x90
[  205.828336]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  205.833879]  ? kvm_clock_read+0x18/0x30
[  205.837854]  ? kvm_sched_clock_read+0x9/0x20
[  205.842260]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  205.847795]  ? check_preemption_disabled+0x48/0x280
[  205.852823]  irq_exit+0x17f/0x1c0
[  205.856279]  smp_apic_timer_interrupt+0x1cb/0x760
[  205.861120]  ? smp_reschedule_interrupt+0x109/0x650
[  205.866159]  ? smp_call_function_single_interrupt+0x650/0x650
[  205.872041]  ? interrupt_entry+0xb5/0xc0
[  205.876105]  ? trace_hardirqs_off_caller+0xbb/0x310
[  205.881116]  ? trace_hardirqs_off_caller+0xbb/0x310
[  205.886135]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  205.890982]  ? trace_hardirqs_on_caller+0x310/0x310
[  205.895996]  ? trace_hardirqs_on_caller+0x310/0x310
[  205.901014]  ? task_prio+0x50/0x50
[  205.904584]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  205.910139]  ? check_preemption_disabled+0x48/0x280
[  205.915169]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  205.920043]  apic_timer_interrupt+0xf/0x20
[  205.924287]  </IRQ>
[  205.926527] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  205.931715] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  205.950611] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  205.958350] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  205.965615] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  205.972889] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  205.980159] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  205.987440] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  205.994738]  retint_kernel+0x1b/0x2d
[  205.998467] RIP: 0010:dump_stack+0x358/0x39d
[  206.002876] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  206.021786] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  206.029490] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  206.036754] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  206.044020] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  206.051285] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  206.058549] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  206.065839]  ? dump_stack+0x34f/0x39d
[  206.069668]  ? dump_stack_print_info.cold.1+0x20/0x20
[  206.074861]  ? mark_held_locks+0x130/0x130
[  206.079123]  ? mark_held_locks+0x130/0x130
[  206.083361]  dump_header+0x27b/0xf72
[  206.087087]  ? pagefault_out_of_memory+0x197/0x197
[  206.092036]  ? __lock_acquire+0x62f/0x4c20
[  206.096279]  ? print_usage_bug+0xc0/0xc0
[  206.100349]  ? zap_class+0x640/0x640
[  206.104068]  ? print_usage_bug+0xc0/0xc0
[  206.108123]  ? print_usage_bug+0xc0/0xc0
[  206.112184]  ? print_usage_bug+0xc0/0xc0
[  206.116268]  ? find_held_lock+0x36/0x1c0
[  206.120334]  ? mark_held_locks+0xc7/0x130
[  206.124483]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  206.129589]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  206.134697]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  206.139280]  ? trace_hardirqs_on+0xbd/0x310
[  206.143601]  ? kasan_check_read+0x11/0x20
[  206.147767]  ? ___ratelimit+0x3b4/0x672
[  206.151743]  ? trace_hardirqs_off_caller+0x310/0x310
[  206.156847]  ? trace_hardirqs_on+0x310/0x310
[  206.161254]  ? lock_downgrade+0x900/0x900
[  206.165407]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  206.170509]  ? ___ratelimit+0x3b9/0x672
[  206.174500]  ? idr_get_free+0xf70/0xf70
[  206.178474]  ? kasan_check_read+0x11/0x20
[  206.182622]  ? do_raw_spin_unlock+0xa7/0x330
[  206.187047]  oom_kill_process.cold.27+0x10/0x903
[  206.191819]  ? zap_class+0x640/0x640
[  206.195558]  ? _raw_spin_unlock+0x2c/0x50
[  206.199718]  ? oom_badness+0xe6/0xaa0
[  206.203528]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  206.208456]  ? kasan_check_read+0x11/0x20
[  206.212613]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  206.217898]  ? oom_evaluate_task+0x540/0x540
[  206.222324]  ? find_held_lock+0x36/0x1c0
[  206.226392]  ? out_of_memory+0x974/0x1430
[  206.230542]  ? lock_downgrade+0x900/0x900
[  206.234694]  ? check_preemption_disabled+0x48/0x280
[  206.239714]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  206.244647]  ? kasan_check_read+0x11/0x20
[  206.248793]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  206.254083]  ? rcu_softirq_qs+0x20/0x20
[  206.258058]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  206.263610]  ? oom_evaluate_task+0x302/0x540
[  206.268044]  out_of_memory+0xa84/0x1430
[  206.272045]  ? oom_killer_disable+0x3a0/0x3a0
[  206.276554]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  206.281490]  ? __ww_mutex_check_waiters+0x160/0x160
[  206.286514]  __alloc_pages_slowpath+0x232c/0x2de0
[  206.291385]  ? warn_alloc+0x120/0x120
[  206.295215]  ? mark_held_locks+0x130/0x130
[  206.299473]  ? find_get_entry+0xaae/0x1120
[  206.303715]  ? filemap_map_pages+0x1a20/0x1a20
[  206.308300]  ? zap_class+0x640/0x640
[  206.312022]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  206.317558]  ? check_preemption_disabled+0x48/0x280
[  206.322583]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  206.328124]  ? should_fail+0x22d/0xd01
[  206.332017]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  206.337138]  ? zap_class+0x640/0x640
[  206.340880]  ? __lock_is_held+0xb5/0x140
[  206.344950]  ? mark_held_locks+0x130/0x130
[  206.349185]  ? lock_release+0xa00/0xa00
[  206.353189]  ? perf_trace_sched_process_exec+0x860/0x860
[  206.358670]  ? xa_load+0x2ba/0x460
[  206.362212]  ? lock_downgrade+0x900/0x900
[  206.366362]  ? __might_sleep+0x95/0x190
[  206.370344]  __alloc_pages_nodemask+0xad8/0xea0
[  206.375025]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  206.380041]  ? __page_cache_alloc+0x191/0x5c0
[  206.384533]  ? xa_load+0x2e1/0x460
[  206.388071]  ? xa_clear_mark+0x40/0x40
[  206.391989]  ? zap_class+0x640/0x640
[  206.395713]  ? zap_class+0x640/0x640
[  206.399426]  ? zap_class+0x640/0x640
[  206.403140]  ? __do_page_cache_readahead+0x663/0x810
[  206.408250]  ? find_held_lock+0x36/0x1c0
[  206.412315]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  206.417885]  alloc_pages_current+0x173/0x350
[  206.422326]  __page_cache_alloc+0x38c/0x5c0
[  206.426666]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  206.431641]  ? kasan_check_read+0x11/0x20
[  206.435791]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  206.441068]  ? generic_perform_write+0x6a0/0x6a0
[  206.445825]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  206.451366]  ? check_preemption_disabled+0x48/0x280
[  206.456389]  filemap_fault+0x1595/0x25f0
[  206.460463]  ? __lock_page_or_retry+0xa00/0xa00
[  206.465135]  ? mark_held_locks+0x130/0x130
[  206.469396]  ? filemap_map_pages+0xd6b/0x1a20
[  206.473911]  ? lock_downgrade+0x900/0x900
[  206.478089]  ? check_preemption_disabled+0x48/0x280
[  206.483102]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  206.488027]  ? kasan_check_read+0x11/0x20
[  206.492191]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  206.497471]  ? rcu_softirq_qs+0x20/0x20
[  206.501461]  ? filemap_map_pages+0xd92/0x1a20
[  206.505997]  ? find_get_entries_tag+0x1400/0x1400
[  206.510846]  ? debug_object_destroy+0x2b0/0x2b0
[  206.515515]  ? lock_pi_update_atomic+0x150/0x150
[  206.520280]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  206.525832]  ? lock_acquire+0x1ed/0x520
[  206.529807]  ? ext4_filemap_fault+0x7a/0xad
[  206.534135]  ? lock_release+0xa00/0xa00
[  206.538115]  ? perf_trace_sched_process_exec+0x860/0x860
[  206.543578]  ? print_usage_bug+0xc0/0xc0
[  206.547645]  ? print_usage_bug+0xc0/0xc0
[  206.551729]  ? down_read+0x8d/0x120
[  206.555351]  ? ext4_filemap_fault+0x7a/0xad
[  206.559675]  ? __down_interruptible+0x700/0x700
[  206.564354]  ext4_filemap_fault+0x82/0xad
[  206.568503]  __do_fault+0x100/0x6b0
[  206.572134]  ? pmd_devmap_trans_unstable+0x220/0x220
[  206.577240]  ? mark_held_locks+0x130/0x130
[  206.581475]  ? mark_held_locks+0x130/0x130
[  206.585713]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  206.590476]  ? retint_kernel+0x2d/0x2d
[  206.594364]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  206.599906]  __handle_mm_fault+0x3ea0/0x5be0
[  206.604313]  ? perf_trace_lock+0x7a0/0x7a0
[  206.608560]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  206.613411]  ? __switch_to_asm+0x34/0x70
[  206.617471]  ? __switch_to_asm+0x34/0x70
[  206.621721]  ? zap_class+0x640/0x640
[  206.625436]  ? zap_class+0x640/0x640
[  206.629156]  ? __x64_sys_futex+0x53e/0x6a0
[  206.633397]  ? find_held_lock+0x36/0x1c0
[  206.637478]  ? handle_mm_fault+0x42a/0xc70
[  206.641719]  ? lock_downgrade+0x900/0x900
[  206.645869]  ? check_preemption_disabled+0x48/0x280
[  206.650886]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  206.655817]  ? kasan_check_read+0x11/0x20
[  206.659967]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  206.665244]  ? rcu_softirq_qs+0x20/0x20
[  206.669218]  ? trace_hardirqs_off_caller+0x310/0x310
[  206.674327]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  206.679866]  ? check_preemption_disabled+0x48/0x280
[  206.684900]  handle_mm_fault+0x54f/0xc70
[  206.688973]  ? __handle_mm_fault+0x5be0/0x5be0
[  206.693562]  ? find_vma+0x34/0x190
[  206.697107]  __do_page_fault+0x5e8/0xe60
[  206.701205]  ? trace_hardirqs_off+0xb8/0x310
[  206.705658]  do_page_fault+0xf2/0x7e0
[  206.709460]  ? vmalloc_sync_all+0x30/0x30
[  206.713615]  ? error_entry+0x70/0xd0
[  206.717339]  ? trace_hardirqs_off_caller+0xbb/0x310
[  206.722356]  ? trace_hardirqs_on_caller+0xc0/0x310
[  206.727284]  ? syscall_return_slowpath+0x5e0/0x5e0
[  206.732211]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  206.737053]  ? trace_hardirqs_on_caller+0x310/0x310
[  206.742069]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  206.747538]  ? prepare_exit_to_usermode+0x291/0x3b0
[  206.753069]  ? page_fault+0x8/0x30
[  206.756615]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  206.761470]  ? page_fault+0x8/0x30
[  206.765015]  page_fault+0x1e/0x30
[  206.768465] RIP: 0033:0x4290d7
[  206.771672] Code: Bad RIP value.
[  206.775034] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  206.780393] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  206.787661] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  206.794925] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  206.802191] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  206.809455] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  206.816749] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  206.816814] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  206.824071] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  206.824076] Call Trace:
[  206.824097]  <IRQ>
[  206.824133]  dump_stack+0x244/0x39d
[  206.824152]  ? dump_stack_print_info.cold.1+0x20/0x20
[  206.830750] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  206.840012]  warn_alloc.cold.116+0xb7/0x1bd
[  206.842569] syz-fuzzer cpuset=/ mems_allowed=0
[  206.844711]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  206.877420]  ? lock_downgrade+0x900/0x900
[  206.881580]  ? trace_hardirqs_off+0xb8/0x310
[  206.886014]  ? trace_hardirqs_off+0xb8/0x310
[  206.890429]  __alloc_pages_slowpath+0x2651/0x2de0
[  206.895331]  ? warn_alloc+0x120/0x120
[  206.899135]  ? print_usage_bug+0xc0/0xc0
[  206.903197]  ? warn_alloc+0x120/0x120
[  206.907005]  ? warn_alloc+0x120/0x120
[  206.910809]  ? print_usage_bug+0xc0/0xc0
[  206.914879]  ? kvm_clock_read+0x18/0x30
[  206.918853]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  206.923869]  ? print_usage_bug+0xc0/0xc0
[  206.927930]  ? __lock_acquire+0x62f/0x4c20
[  206.932169]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  206.937707]  ? should_fail+0x22d/0xd01
[  206.941591]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  206.946894]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  206.951998]  ? __lock_acquire+0x62f/0x4c20
[  206.956236]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  206.961339]  ? __lock_acquire+0x62f/0x4c20
[  206.965572]  ? should_fail+0x22d/0xd01
[  206.969472]  ? rcu_irq_exit+0x1a2/0x390
[  206.973458]  ? mark_held_locks+0x130/0x130
[  206.977696]  ? mark_held_locks+0x130/0x130
[  206.981934]  ? mark_held_locks+0xc7/0x130
[  206.986099]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  206.991113]  ? zap_class+0x640/0x640
[  206.994826]  ? print_usage_bug+0xc0/0xc0
[  206.998890]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  207.004429]  ? check_preemption_disabled+0x48/0x280
[  207.009458]  ? __lock_is_held+0xb5/0x140
[  207.013524]  __alloc_pages_nodemask+0xad8/0xea0
[  207.018191]  ? zap_class+0x640/0x640
[  207.021914]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  207.026944]  ? find_held_lock+0x36/0x1c0
[  207.031016]  ? ____cache_alloc_node+0x1c7/0x1e0
[  207.035690]  ? lock_downgrade+0x900/0x900
[  207.039850]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  207.045394]  cache_grow_begin+0xa5/0x8c0
[  207.049454]  ? do_raw_spin_unlock+0xa7/0x330
[  207.053869]  fallback_alloc+0x204/0x2e0
[  207.057854]  ____cache_alloc_node+0x1c7/0x1e0
[  207.062357]  kmem_cache_alloc_node+0xe3/0x730
[  207.066851]  ? ipv6_get_ifaddr+0x42e/0x620
[  207.071109]  __alloc_skb+0x119/0x770
[  207.074834]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  207.080112]  ? netdev_alloc_frag+0x1f0/0x1f0
[  207.084517]  ? lock_downgrade+0x900/0x900
[  207.088678]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  207.094216]  ? refcount_sub_and_test_checked+0x203/0x310
[  207.099672]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  207.105129]  ? addrconf_rs_timer+0x690/0x690
[  207.109549]  ndisc_alloc_skb+0x144/0x340
[  207.113613]  ndisc_send_rs+0x331/0x6e0
[  207.117520]  addrconf_rs_timer+0x314/0x690
[  207.121763]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  207.126056]  call_timer_fn+0x272/0x920
[  207.129945]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  207.134177]  ? process_timeout+0x40/0x40
[  207.138242]  ? __run_timers+0x7da/0xc70
[  207.142219]  ? _raw_spin_unlock_irq+0x27/0x80
[  207.146730]  ? _raw_spin_unlock_irq+0x27/0x80
[  207.151228]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  207.155465]  ? lockdep_hardirqs_on+0x296/0x5b0
[  207.160047]  ? trace_hardirqs_on+0xbd/0x310
[  207.164384]  ? kasan_check_read+0x11/0x20
[  207.168527]  ? __run_timers+0x7da/0xc70
[  207.172501]  ? trace_hardirqs_off_caller+0x310/0x310
[  207.177612]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  207.181872]  __run_timers+0x7e5/0xc70
[  207.185687]  ? timer_fixup_init+0x70/0x70
[  207.189848]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  207.194867]  ? zap_class+0x640/0x640
[  207.198588]  ? enqueue_hrtimer+0x1a5/0x560
[  207.202822]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  207.208019]  ? find_held_lock+0x36/0x1c0
[  207.212089]  ? zap_class+0x640/0x640
[  207.215809]  ? pvclock_read_flags+0x160/0x160
[  207.220307]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  207.225877]  ? check_preemption_disabled+0x48/0x280
[  207.230919]  ? __lock_is_held+0xb5/0x140
[  207.234983]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  207.240522]  ? check_preemption_disabled+0x48/0x280
[  207.245547]  run_timer_softirq+0x52/0xb0
[  207.249607]  ? rcu_read_lock_sched_held+0x14f/0x180
[  207.254671]  __do_softirq+0x308/0xb7e
[  207.258480]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  207.262976]  ? lock_downgrade+0x900/0x900
[  207.267130]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  207.272251]  ? pvclock_read_flags+0x160/0x160
[  207.276751]  ? lapic_next_event+0x5a/0x90
[  207.280908]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  207.286450]  ? kvm_clock_read+0x18/0x30
[  207.290442]  ? kvm_sched_clock_read+0x9/0x20
[  207.294852]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  207.300392]  ? check_preemption_disabled+0x48/0x280
[  207.305414]  irq_exit+0x17f/0x1c0
[  207.308884]  smp_apic_timer_interrupt+0x1cb/0x760
[  207.313727]  ? smp_reschedule_interrupt+0x109/0x650
[  207.318774]  ? smp_call_function_single_interrupt+0x650/0x650
[  207.324669]  ? interrupt_entry+0xb5/0xc0
[  207.328731]  ? trace_hardirqs_off_caller+0xbb/0x310
[  207.333747]  ? trace_hardirqs_off_caller+0xbb/0x310
[  207.338765]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  207.343613]  ? trace_hardirqs_on_caller+0x310/0x310
[  207.348644]  ? trace_hardirqs_on_caller+0x310/0x310
[  207.353672]  ? task_prio+0x50/0x50
[  207.357219]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  207.362756]  ? check_preemption_disabled+0x48/0x280
[  207.367777]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  207.372634]  apic_timer_interrupt+0xf/0x20
[  207.376865]  </IRQ>
[  207.379104] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  207.384033] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  207.402932] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  207.410643] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  207.417917] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  207.425185] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  207.432449] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  207.439717] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  207.447027]  skb_clone+0x1bb/0x500
[  207.450575]  ? skb_split+0x11e0/0x11e0
[  207.454465]  ? preempt_notifier_register+0x200/0x200
[  207.459570]  ? __switch_to_asm+0x34/0x70
[  207.463640]  ? __switch_to_asm+0x34/0x70
[  207.467703]  ? __switch_to_asm+0x40/0x70
[  207.471763]  ? __switch_to_asm+0x34/0x70
[  207.475819]  ? __switch_to_asm+0x40/0x70
[  207.479882]  ? __switch_to_asm+0x40/0x70
[  207.483938]  ? __switch_to_asm+0x34/0x70
[  207.488000]  ? __switch_to_asm+0x34/0x70
[  207.492057]  ? __switch_to_asm+0x40/0x70
[  207.496114]  ? __switch_to_asm+0x34/0x70
[  207.500182]  bpf_clone_redirect+0xb9/0x490
[  207.504428]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  207.509449]  ? __sched_text_start+0x8/0x8
[  207.513604]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  207.518192]  ? retint_kernel+0x2d/0x2d
[  207.522080]  ? trace_hardirqs_on_caller+0xc0/0x310
[  207.527012]  ? find_held_lock+0x36/0x1c0
[  207.531080]  ? lock_acquire+0x1ed/0x520
[  207.535053]  ? bpf_test_run+0x3cb/0x780
[  207.539044]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  207.544582]  ? check_preemption_disabled+0x48/0x280
[  207.549605]  ? kasan_check_read+0x11/0x20
[  207.553760]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  207.559037]  ? rcu_softirq_qs+0x20/0x20
[  207.563032]  ? preempt_schedule+0x4d/0x60
[  207.567194]  ? ___preempt_schedule+0x16/0x18
[  207.571611]  ? bpf_test_run+0x25d/0x780
[  207.575607]  ? netlink_diag_dump+0x2a0/0x2a0
[  207.580036]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  207.585572]  ? bpf_test_init.isra.10+0x70/0x100
[  207.590246]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  207.595013]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  207.599856]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  207.605438]  ? fput+0x130/0x1a0
[  207.608725]  ? __bpf_prog_get+0x9b/0x290
[  207.612789]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  207.617638]  ? bpf_prog_test_run+0x130/0x1a0
[  207.622054]  ? __x64_sys_bpf+0x3db/0x520
[  207.626111]  ? bpf_prog_get+0x20/0x20
[  207.629933]  ? do_syscall_64+0x1b9/0x820
[  207.633995]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  207.639363]  ? syscall_return_slowpath+0x5e0/0x5e0
[  207.644293]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  207.649136]  ? trace_hardirqs_on_caller+0x310/0x310
[  207.654160]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  207.659182]  ? prepare_exit_to_usermode+0x291/0x3b0
[  207.664219]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  207.669068]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  207.674469] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  207.674474] warn_alloc_show_mem: 1 callbacks suppressed
[  207.674481] Mem-Info:
[  207.681486] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  207.686857] active_anon:57128 inactive_anon:971 isolated_anon:0
[  207.686857]  active_file:40 inactive_file:20 isolated_file:0
[  207.686857]  unevictable:0 dirty:11 writeback:0 unstable:0
[  207.686857]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  207.686857]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  207.686857]  free:13615 free_pcp:64 free_cma:0
[  207.689226] Call Trace:
[  207.698632] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  207.731560]  <IRQ>
[  207.734128] 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
[  207.762155]  dump_stack+0x244/0x39d
[  207.764272] lowmem_reserve[]: 0 2818 6321 6321
[  207.790383]  ? dump_stack_print_info.cold.1+0x20/0x20
[  207.793978] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  207.798576]  warn_alloc.cold.116+0xb7/0x1bd
[  207.803745] lowmem_reserve[]: 0 0 3503 3503
[  207.831257]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  207.835554] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  207.839874]  ? lock_downgrade+0x900/0x900
[  207.844683] lowmem_reserve[]: 0 0 0 0
[  207.873850]  ? trace_hardirqs_off+0xb8/0x310
[  207.877965] 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
[  207.881779]  ? trace_hardirqs_off+0xb8/0x310
[  207.886176] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  207.899709]  __alloc_pages_slowpath+0x2651/0x2de0
[  207.904098] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  207.919205]  ? warn_alloc+0x120/0x120
[  207.924007] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  207.939515]  ? print_usage_bug+0xc0/0xc0
[  207.943295] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  207.952128]  ? warn_alloc+0x120/0x120
[  207.956168] 5171 total pagecache pages
[  207.964762]  ? warn_alloc+0x120/0x120
[  207.968590] 0 pages in swap cache
[  207.972466]  ? print_usage_bug+0xc0/0xc0
[  207.976246] Swap cache stats: add 0, delete 0, find 0/0
[  207.979719]  ? kvm_clock_read+0x18/0x30
[  207.983752] Free swap  = 0kB
[  207.989106]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  207.993056] Total swap = 0kB
[  207.996065]  ? print_usage_bug+0xc0/0xc0
[  208.001052] 1965979 pages RAM
[  208.004065]  ? __lock_acquire+0x62f/0x4c20
[  208.008104] 0 pages HighMem/MovableOnly
[  208.011203]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  208.015409] 342854 pages reserved
[  208.019388]  ? should_fail+0x22d/0xd01
[  208.024896] 0 pages cma reserved
[  208.028340]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  208.032272] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  208.035556]  ? __lock_acquire+0x62f/0x4c20
[  208.040774] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  208.047151]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  208.051355] syz-executor2 cpuset=syz2 mems_allowed=0
[  208.061832]  ? __lock_acquire+0x62f/0x4c20
[  208.076217]  ? should_fail+0x22d/0xd01
[  208.080116]  ? mark_held_locks+0x130/0x130
[  208.084361]  ? mark_held_locks+0x130/0x130
[  208.088606]  ? zap_class+0x640/0x640
[  208.092327]  ? print_usage_bug+0xc0/0xc0
[  208.096394]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  208.101936]  ? check_preemption_disabled+0x48/0x280
[  208.106962]  ? __lock_is_held+0xb5/0x140
[  208.111032]  __alloc_pages_nodemask+0xad8/0xea0
[  208.115701]  ? zap_class+0x640/0x640
[  208.119424]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  208.124453]  ? find_held_lock+0x36/0x1c0
[  208.128523]  ? ____cache_alloc_node+0x1c7/0x1e0
[  208.133194]  ? lock_downgrade+0x900/0x900
[  208.137355]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  208.142899]  cache_grow_begin+0xa5/0x8c0
[  208.146959]  ? do_raw_spin_unlock+0xa7/0x330
[  208.151376]  fallback_alloc+0x204/0x2e0
[  208.155360]  ____cache_alloc_node+0x1c7/0x1e0
[  208.159864]  kmem_cache_alloc_node+0xe3/0x730
[  208.164360]  ? ipv6_get_ifaddr+0x42e/0x620
[  208.168605]  __alloc_skb+0x119/0x770
[  208.172324]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  208.177608]  ? netdev_alloc_frag+0x1f0/0x1f0
[  208.182022]  ? lock_downgrade+0x900/0x900
[  208.186179]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  208.191719]  ? refcount_sub_and_test_checked+0x203/0x310
[  208.197178]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  208.202641]  ? addrconf_rs_timer+0x690/0x690
[  208.207068]  ndisc_alloc_skb+0x144/0x340
[  208.211133]  ndisc_send_rs+0x331/0x6e0
[  208.215029]  addrconf_rs_timer+0x314/0x690
[  208.219271]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  208.223514]  call_timer_fn+0x272/0x920
[  208.227408]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  208.231652]  ? process_timeout+0x40/0x40
[  208.235726]  ? mark_held_locks+0xc7/0x130
[  208.239878]  ? _raw_spin_unlock_irq+0x27/0x80
[  208.244371]  ? _raw_spin_unlock_irq+0x27/0x80
[  208.248864]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  208.253097]  ? lockdep_hardirqs_on+0x296/0x5b0
[  208.257679]  ? trace_hardirqs_on+0xbd/0x310
[  208.261999]  ? kasan_check_read+0x11/0x20
[  208.266151]  ? __run_timers+0x7da/0xc70
[  208.270124]  ? trace_hardirqs_off_caller+0x310/0x310
[  208.275246]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  208.279477]  __run_timers+0x7e5/0xc70
[  208.283289]  ? timer_fixup_init+0x70/0x70
[  208.287439]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  208.292458]  ? zap_class+0x640/0x640
[  208.296180]  ? print_usage_bug+0xc0/0xc0
[  208.300248]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  208.305444]  ? find_held_lock+0x36/0x1c0
[  208.309514]  ? zap_class+0x640/0x640
[  208.313234]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  208.318773]  ? check_preemption_disabled+0x48/0x280
[  208.323803]  ? __lock_is_held+0xb5/0x140
[  208.327865]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  208.333406]  ? check_preemption_disabled+0x48/0x280
[  208.338429]  run_timer_softirq+0x52/0xb0
[  208.342494]  ? rcu_read_lock_sched_held+0x14f/0x180
[  208.347515]  __do_softirq+0x308/0xb7e
[  208.351318]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  208.355813]  ? lock_downgrade+0x900/0x900
[  208.359968]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  208.365079]  ? pvclock_read_flags+0x160/0x160
[  208.369575]  ? lapic_next_event+0x5a/0x90
[  208.373730]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  208.379273]  ? kvm_clock_read+0x18/0x30
[  208.383246]  ? kvm_sched_clock_read+0x9/0x20
[  208.387660]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  208.393204]  ? check_preemption_disabled+0x48/0x280
[  208.398230]  irq_exit+0x17f/0x1c0
[  208.401689]  smp_apic_timer_interrupt+0x1cb/0x760
[  208.406530]  ? smp_reschedule_interrupt+0x109/0x650
[  208.411546]  ? smp_call_function_single_interrupt+0x650/0x650
[  208.417428]  ? interrupt_entry+0xb5/0xc0
[  208.421494]  ? trace_hardirqs_off_caller+0xbb/0x310
[  208.426513]  ? trace_hardirqs_off_caller+0xbb/0x310
[  208.431530]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  208.436373]  ? trace_hardirqs_on_caller+0x310/0x310
[  208.441391]  ? trace_hardirqs_on_caller+0x310/0x310
[  208.446410]  ? task_prio+0x50/0x50
[  208.449963]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  208.455501]  ? check_preemption_disabled+0x48/0x280
[  208.460525]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  208.465427]  apic_timer_interrupt+0xf/0x20
[  208.469654]  </IRQ>
[  208.471893] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  208.477081] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  208.495985] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  208.503695] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  208.510963] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  208.518233] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  208.525500] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  208.532767] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  208.540070]  retint_kernel+0x1b/0x2d
[  208.543787] RIP: 0010:dump_stack+0x358/0x39d
[  208.548198] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  208.567104] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  208.574813] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  208.582079] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  208.589346] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  208.596616] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  208.603890] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  208.611189]  ? dump_stack+0x34f/0x39d
[  208.615008]  ? dump_stack_print_info.cold.1+0x20/0x20
[  208.620398]  ? mark_held_locks+0x130/0x130
[  208.624632]  ? mark_held_locks+0x130/0x130
[  208.628876]  dump_header+0x27b/0xf72
[  208.632606]  ? pagefault_out_of_memory+0x197/0x197
[  208.637554]  ? __lock_acquire+0x62f/0x4c20
[  208.641791]  ? print_usage_bug+0xc0/0xc0
[  208.645860]  ? zap_class+0x640/0x640
[  208.649576]  ? print_usage_bug+0xc0/0xc0
[  208.653646]  ? print_usage_bug+0xc0/0xc0
[  208.657714]  ? print_usage_bug+0xc0/0xc0
[  208.661787]  ? find_held_lock+0x36/0x1c0
[  208.665857]  ? mark_held_locks+0xc7/0x130
[  208.670006]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  208.675106]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  208.680209]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  208.684794]  ? trace_hardirqs_on+0xbd/0x310
[  208.689116]  ? kasan_check_read+0x11/0x20
[  208.693273]  ? ___ratelimit+0x3b4/0x672
[  208.697247]  ? trace_hardirqs_off_caller+0x310/0x310
[  208.702355]  ? trace_hardirqs_on+0x310/0x310
[  208.706767]  ? lock_downgrade+0x900/0x900
[  208.710920]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  208.716023]  ? ___ratelimit+0x3b9/0x672
[  208.719997]  ? idr_get_free+0xf70/0xf70
[  208.723974]  ? kasan_check_read+0x11/0x20
[  208.728123]  ? do_raw_spin_unlock+0xa7/0x330
[  208.732544]  oom_kill_process.cold.27+0x10/0x903
[  208.737303]  ? zap_class+0x640/0x640
[  208.741019]  ? _raw_spin_unlock+0x2c/0x50
[  208.745173]  ? oom_badness+0xe6/0xaa0
[  208.748972]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  208.754404]  ? kasan_check_read+0x11/0x20
[  208.758553]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  208.763831]  ? oom_evaluate_task+0x540/0x540
[  208.768243]  ? find_held_lock+0x36/0x1c0
[  208.772309]  ? out_of_memory+0x974/0x1430
[  208.776459]  ? lock_downgrade+0x900/0x900
[  208.780608]  ? check_preemption_disabled+0x48/0x280
[  208.785640]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  208.790572]  ? kasan_check_read+0x11/0x20
[  208.794722]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  208.799998]  ? rcu_softirq_qs+0x20/0x20
[  208.803976]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  208.809513]  ? oom_evaluate_task+0x302/0x540
[  208.813926]  out_of_memory+0xa84/0x1430
[  208.817911]  ? oom_killer_disable+0x3a0/0x3a0
[  208.822409]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  208.827348]  ? __ww_mutex_check_waiters+0x160/0x160
[  208.832373]  __alloc_pages_slowpath+0x232c/0x2de0
[  208.837243]  ? warn_alloc+0x120/0x120
[  208.841046]  ? mark_held_locks+0x130/0x130
[  208.845286]  ? find_get_entry+0xaae/0x1120
[  208.849529]  ? filemap_map_pages+0x1a20/0x1a20
[  208.854118]  ? zap_class+0x640/0x640
[  208.857847]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  208.863386]  ? check_preemption_disabled+0x48/0x280
[  208.868406]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  208.873949]  ? should_fail+0x22d/0xd01
[  208.877843]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  208.882947]  ? zap_class+0x640/0x640
[  208.886695]  ? __lock_is_held+0xb5/0x140
[  208.890769]  ? mark_held_locks+0x130/0x130
[  208.895010]  ? lock_release+0xa00/0xa00
[  208.898986]  ? perf_trace_sched_process_exec+0x860/0x860
[  208.904433]  ? xa_load+0x2ba/0x460
[  208.908182]  ? lock_downgrade+0x900/0x900
[  208.912332]  ? __might_sleep+0x95/0x190
[  208.916312]  __alloc_pages_nodemask+0xad8/0xea0
[  208.920992]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  208.926013]  ? __page_cache_alloc+0x191/0x5c0
[  208.930503]  ? xa_load+0x2e1/0x460
[  208.934047]  ? xa_clear_mark+0x40/0x40
[  208.937935]  ? zap_class+0x640/0x640
[  208.941665]  ? zap_class+0x640/0x640
[  208.945376]  ? zap_class+0x640/0x640
[  208.949093]  ? __do_page_cache_readahead+0x663/0x810
[  208.954198]  ? find_held_lock+0x36/0x1c0
[  208.958276]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  208.963824]  alloc_pages_current+0x173/0x350
[  208.968243]  __page_cache_alloc+0x38c/0x5c0
[  208.972565]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  208.977497]  ? kasan_check_read+0x11/0x20
[  208.981656]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  208.986934]  ? generic_perform_write+0x6a0/0x6a0
[  208.991689]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  208.997231]  ? check_preemption_disabled+0x48/0x280
[  209.002259]  filemap_fault+0x1595/0x25f0
[  209.006331]  ? __lock_page_or_retry+0xa00/0xa00
[  209.011001]  ? mark_held_locks+0x130/0x130
[  209.015248]  ? filemap_map_pages+0xd6b/0x1a20
[  209.019745]  ? lock_downgrade+0x900/0x900
[  209.023898]  ? check_preemption_disabled+0x48/0x280
[  209.028919]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  209.033851]  ? kasan_check_read+0x11/0x20
[  209.037998]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  209.043272]  ? rcu_softirq_qs+0x20/0x20
[  209.047259]  ? filemap_map_pages+0xd92/0x1a20
[  209.051765]  ? find_get_entries_tag+0x1400/0x1400
[  209.056610]  ? debug_object_destroy+0x2b0/0x2b0
[  209.061292]  ? lock_pi_update_atomic+0x150/0x150
[  209.066049]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  209.071598]  ? lock_acquire+0x1ed/0x520
[  209.075577]  ? ext4_filemap_fault+0x7a/0xad
[  209.079904]  ? lock_release+0xa00/0xa00
[  209.083896]  ? perf_trace_sched_process_exec+0x860/0x860
[  209.089348]  ? print_usage_bug+0xc0/0xc0
[  209.093412]  ? print_usage_bug+0xc0/0xc0
[  209.097481]  ? down_read+0x8d/0x120
[  209.101108]  ? ext4_filemap_fault+0x7a/0xad
[  209.105426]  ? __down_interruptible+0x700/0x700
[  209.110102]  ext4_filemap_fault+0x82/0xad
[  209.114252]  __do_fault+0x100/0x6b0
[  209.117883]  ? pmd_devmap_trans_unstable+0x220/0x220
[  209.122991]  ? mark_held_locks+0x130/0x130
[  209.127226]  ? mark_held_locks+0x130/0x130
[  209.131459]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  209.136225]  ? retint_kernel+0x2d/0x2d
[  209.140129]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  209.145680]  __handle_mm_fault+0x3ea0/0x5be0
[  209.150086]  ? perf_trace_lock+0x7a0/0x7a0
[  209.154325]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  209.159183]  ? __switch_to_asm+0x34/0x70
[  209.163240]  ? __switch_to_asm+0x34/0x70
[  209.167318]  ? zap_class+0x640/0x640
[  209.171029]  ? zap_class+0x640/0x640
[  209.174740]  ? __x64_sys_futex+0x53e/0x6a0
[  209.178981]  ? find_held_lock+0x36/0x1c0
[  209.183067]  ? handle_mm_fault+0x42a/0xc70
[  209.187303]  ? lock_downgrade+0x900/0x900
[  209.191455]  ? check_preemption_disabled+0x48/0x280
[  209.196476]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  209.201407]  ? kasan_check_read+0x11/0x20
[  209.205555]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  209.210831]  ? rcu_softirq_qs+0x20/0x20
[  209.214803]  ? trace_hardirqs_off_caller+0x310/0x310
[  209.219908]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  209.225447]  ? check_preemption_disabled+0x48/0x280
[  209.230470]  handle_mm_fault+0x54f/0xc70
[  209.234554]  ? __handle_mm_fault+0x5be0/0x5be0
[  209.239140]  ? find_vma+0x34/0x190
[  209.242689]  __do_page_fault+0x5e8/0xe60
[  209.246747]  ? trace_hardirqs_off+0xb8/0x310
[  209.251173]  do_page_fault+0xf2/0x7e0
[  209.254974]  ? vmalloc_sync_all+0x30/0x30
[  209.259126]  ? error_entry+0x70/0xd0
[  209.262841]  ? trace_hardirqs_off_caller+0xbb/0x310
[  209.267857]  ? trace_hardirqs_on_caller+0xc0/0x310
[  209.272787]  ? syscall_return_slowpath+0x5e0/0x5e0
[  209.277713]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  209.282555]  ? trace_hardirqs_on_caller+0x310/0x310
[  209.287570]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  209.293025]  ? prepare_exit_to_usermode+0x291/0x3b0
[  209.298040]  ? page_fault+0x8/0x30
[  209.301582]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  209.306429]  ? page_fault+0x8/0x30
[  209.309967]  page_fault+0x1e/0x30
[  209.313416] RIP: 0033:0x4290d7
[  209.316617] Code: Bad RIP value.
[  209.319985] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  209.325342] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  209.332608] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  209.339878] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  209.347144] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  209.354415] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  209.361713] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  209.361796] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  209.368988] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  209.368997] Call Trace:
[  209.375572] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  209.384830]  <IRQ>
[  209.387402] syz-fuzzer cpuset=/ mems_allowed=0
[  209.397621]  dump_stack+0x244/0x39d
[  209.407943]  ? dump_stack_print_info.cold.1+0x20/0x20
[  209.413145]  warn_alloc.cold.116+0xb7/0x1bd
[  209.417473]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  209.422317]  ? lock_downgrade+0x900/0x900
[  209.426472]  ? trace_hardirqs_off+0xb8/0x310
[  209.430889]  ? trace_hardirqs_off+0xb8/0x310
[  209.435306]  __alloc_pages_slowpath+0x2651/0x2de0
[  209.440188]  ? warn_alloc+0x120/0x120
[  209.443995]  ? print_usage_bug+0xc0/0xc0
[  209.448060]  ? warn_alloc+0x120/0x120
[  209.451863]  ? warn_alloc+0x120/0x120
[  209.455675]  ? print_usage_bug+0xc0/0xc0
[  209.459738]  ? kvm_clock_read+0x18/0x30
[  209.463716]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  209.468732]  ? print_usage_bug+0xc0/0xc0
[  209.472796]  ? __lock_acquire+0x62f/0x4c20
[  209.477045]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  209.482580]  ? should_fail+0x22d/0xd01
[  209.486470]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  209.491754]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  209.496855]  ? __lock_acquire+0x62f/0x4c20
[  209.501095]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  209.506195]  ? __lock_acquire+0x62f/0x4c20
[  209.510429]  ? should_fail+0x22d/0xd01
[  209.514317]  ? rcu_irq_exit+0x1a2/0x390
[  209.518297]  ? mark_held_locks+0x130/0x130
[  209.522533]  ? mark_held_locks+0x130/0x130
[  209.526771]  ? mark_held_locks+0xc7/0x130
[  209.530924]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  209.535940]  ? zap_class+0x640/0x640
[  209.539664]  ? print_usage_bug+0xc0/0xc0
[  209.543732]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  209.549274]  ? check_preemption_disabled+0x48/0x280
[  209.554297]  ? __lock_is_held+0xb5/0x140
[  209.558364]  __alloc_pages_nodemask+0xad8/0xea0
[  209.563034]  ? zap_class+0x640/0x640
[  209.566753]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  209.571780]  ? find_held_lock+0x36/0x1c0
[  209.575853]  ? ____cache_alloc_node+0x1c7/0x1e0
[  209.580527]  ? lock_downgrade+0x900/0x900
[  209.584685]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  209.590232]  cache_grow_begin+0xa5/0x8c0
[  209.594292]  ? do_raw_spin_unlock+0xa7/0x330
[  209.598708]  fallback_alloc+0x204/0x2e0
[  209.602689]  ____cache_alloc_node+0x1c7/0x1e0
[  209.607190]  kmem_cache_alloc_node+0xe3/0x730
[  209.611686]  ? ipv6_get_ifaddr+0x42e/0x620
[  209.615928]  __alloc_skb+0x119/0x770
[  209.619651]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  209.624931]  ? netdev_alloc_frag+0x1f0/0x1f0
[  209.629342]  ? lock_downgrade+0x900/0x900
[  209.633498]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  209.639035]  ? refcount_sub_and_test_checked+0x203/0x310
[  209.644492]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  209.649942]  ? addrconf_rs_timer+0x690/0x690
[  209.654365]  ndisc_alloc_skb+0x144/0x340
[  209.658431]  ndisc_send_rs+0x331/0x6e0
[  209.662326]  addrconf_rs_timer+0x314/0x690
[  209.666565]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  209.670808]  call_timer_fn+0x272/0x920
[  209.674699]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  209.678936]  ? process_timeout+0x40/0x40
[  209.683001]  ? __run_timers+0x7da/0xc70
[  209.686979]  ? _raw_spin_unlock_irq+0x27/0x80
[  209.691471]  ? _raw_spin_unlock_irq+0x27/0x80
[  209.695973]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  209.700210]  ? lockdep_hardirqs_on+0x296/0x5b0
[  209.704795]  ? trace_hardirqs_on+0xbd/0x310
[  209.709125]  ? kasan_check_read+0x11/0x20
[  209.713273]  ? __run_timers+0x7da/0xc70
[  209.717252]  ? trace_hardirqs_off_caller+0x310/0x310
[  209.722362]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  209.726608]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  209.730851]  __run_timers+0x7e5/0xc70
[  209.734678]  ? timer_fixup_init+0x70/0x70
[  209.738827]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  209.743848]  ? zap_class+0x640/0x640
[  209.747568]  ? enqueue_hrtimer+0x1a5/0x560
[  209.751804]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  209.757003]  ? find_held_lock+0x36/0x1c0
[  209.761067]  ? zap_class+0x640/0x640
[  209.764784]  ? pvclock_read_flags+0x160/0x160
[  209.769281]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  209.774819]  ? check_preemption_disabled+0x48/0x280
[  209.779845]  ? __lock_is_held+0xb5/0x140
[  209.783906]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  209.789443]  ? check_preemption_disabled+0x48/0x280
[  209.794463]  run_timer_softirq+0x52/0xb0
[  209.798529]  ? rcu_read_lock_sched_held+0x14f/0x180
[  209.803545]  __do_softirq+0x308/0xb7e
[  209.807348]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  209.811842]  ? lock_downgrade+0x900/0x900
[  209.815998]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  209.821106]  ? pvclock_read_flags+0x160/0x160
[  209.825604]  ? lapic_next_event+0x5a/0x90
[  209.829767]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  209.835325]  ? kvm_clock_read+0x18/0x30
[  209.839307]  ? kvm_sched_clock_read+0x9/0x20
[  209.843745]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  209.849318]  ? check_preemption_disabled+0x48/0x280
[  209.854377]  irq_exit+0x17f/0x1c0
[  209.857866]  smp_apic_timer_interrupt+0x1cb/0x760
[  209.862741]  ? smp_reschedule_interrupt+0x109/0x650
[  209.867794]  ? smp_call_function_single_interrupt+0x650/0x650
[  209.873713]  ? interrupt_entry+0xb5/0xc0
[  209.877812]  ? trace_hardirqs_off_caller+0xbb/0x310
[  209.882872]  ? trace_hardirqs_off_caller+0xbb/0x310
[  209.887925]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  209.892795]  ? trace_hardirqs_on_caller+0x310/0x310
[  209.897838]  ? trace_hardirqs_on_caller+0x310/0x310
[  209.902883]  ? task_prio+0x50/0x50
[  209.906454]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  209.912021]  ? check_preemption_disabled+0x48/0x280
[  209.917075]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  209.921963]  apic_timer_interrupt+0xf/0x20
[  209.926213]  </IRQ>
[  209.928472] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  209.933440] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  209.952367] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  209.960117] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  209.967412] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  209.974713] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  209.982005] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  209.989300] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  209.996654]  skb_clone+0x1bb/0x500
[  210.000227]  ? skb_split+0x11e0/0x11e0
[  210.004148]  ? preempt_notifier_register+0x200/0x200
[  210.009282]  ? __switch_to_asm+0x34/0x70
[  210.013367]  ? __switch_to_asm+0x34/0x70
[  210.017448]  ? __switch_to_asm+0x40/0x70
[  210.021534]  ? __switch_to_asm+0x34/0x70
[  210.025615]  ? __switch_to_asm+0x40/0x70
[  210.029713]  ? __switch_to_asm+0x40/0x70
[  210.033792]  ? __switch_to_asm+0x34/0x70
[  210.037872]  ? __switch_to_asm+0x34/0x70
[  210.041954]  ? __switch_to_asm+0x40/0x70
[  210.046035]  ? __switch_to_asm+0x34/0x70
[  210.050123]  bpf_clone_redirect+0xb9/0x490
[  210.054387]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  210.059431]  ? __sched_text_start+0x8/0x8
[  210.063604]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  210.068220]  ? retint_kernel+0x2d/0x2d
[  210.072127]  ? trace_hardirqs_on_caller+0xc0/0x310
[  210.077083]  ? find_held_lock+0x36/0x1c0
[  210.081174]  ? lock_acquire+0x1ed/0x520
[  210.085171]  ? bpf_test_run+0x3cb/0x780
[  210.089167]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  210.094727]  ? check_preemption_disabled+0x48/0x280
[  210.099771]  ? kasan_check_read+0x11/0x20
[  210.103941]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  210.109238]  ? rcu_softirq_qs+0x20/0x20
[  210.113232]  ? preempt_schedule+0x4d/0x60
[  210.117399]  ? ___preempt_schedule+0x16/0x18
[  210.121834]  ? bpf_test_run+0x25d/0x780
[  210.125836]  ? netlink_diag_dump+0x2a0/0x2a0
[  210.130268]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  210.135827]  ? bpf_test_init.isra.10+0x70/0x100
[  210.140521]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  210.145313]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  210.150177]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  210.155737]  ? fput+0x130/0x1a0
[  210.159040]  ? __bpf_prog_get+0x9b/0x290
[  210.163124]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  210.167984]  ? bpf_prog_test_run+0x130/0x1a0
[  210.172419]  ? __x64_sys_bpf+0x3db/0x520
[  210.176497]  ? bpf_prog_get+0x20/0x20
[  210.180335]  ? do_syscall_64+0x1b9/0x820
[  210.184411]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  210.189797]  ? syscall_return_slowpath+0x5e0/0x5e0
[  210.194746]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  210.199612]  ? trace_hardirqs_on_caller+0x310/0x310
[  210.204674]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  210.209747]  ? prepare_exit_to_usermode+0x291/0x3b0
[  210.214789]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  210.219675]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  210.225076] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  210.225081] warn_alloc_show_mem: 1 callbacks suppressed
[  210.225089] Mem-Info:
[  210.232104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  210.237480] active_anon:57128 inactive_anon:971 isolated_anon:0
[  210.237480]  active_file:40 inactive_file:20 isolated_file:0
[  210.237480]  unevictable:0 dirty:11 writeback:0 unstable:0
[  210.237480]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  210.237480]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  210.237480]  free:13615 free_pcp:64 free_cma:0
[  210.239861] Call Trace:
[  210.249258] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  210.282205]  <IRQ>
[  210.284783] 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
[  210.312738]  dump_stack+0x244/0x39d
[  210.314859] lowmem_reserve[]: 0 2818 6321 6321
[  210.340988]  ? dump_stack_print_info.cold.1+0x20/0x20
[  210.344589] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  210.349181]  warn_alloc.cold.116+0xb7/0x1bd
[  210.354337] lowmem_reserve[]: 0 0 3503 3503
[  210.381852]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  210.386679] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  210.391003]  ? lock_downgrade+0x900/0x900
[  210.395815] lowmem_reserve[]: 0 0 0 0
[  210.424975]  ? trace_hardirqs_off+0xb8/0x310
[  210.429098] 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
[  210.432893]  ? trace_hardirqs_off+0xb8/0x310
[  210.437272] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  210.450794]  __alloc_pages_slowpath+0x2651/0x2de0
[  210.455169] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  210.470267]  ? warn_alloc+0x120/0x120
[  210.475069] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  210.490592]  ? print_usage_bug+0xc0/0xc0
[  210.494387] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  210.503233]  ? warn_alloc+0x120/0x120
[  210.507294] 5171 total pagecache pages
[  210.515872]  ? warn_alloc+0x120/0x120
[  210.519695] 0 pages in swap cache
[  210.523595]  ? print_usage_bug+0xc0/0xc0
[  210.527368] Swap cache stats: add 0, delete 0, find 0/0
[  210.530819]  ? kvm_clock_read+0x18/0x30
[  210.534851] Free swap  = 0kB
[  210.540216]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  210.544163] Total swap = 0kB
[  210.547221]  ? print_usage_bug+0xc0/0xc0
[  210.552202] 1965979 pages RAM
[  210.555213]  ? __lock_acquire+0x62f/0x4c20
[  210.559248] 0 pages HighMem/MovableOnly
[  210.562365]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  210.566567] 342854 pages reserved
[  210.570532]  ? should_fail+0x22d/0xd01
[  210.576041] 0 pages cma reserved
[  210.579494]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  210.583413] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  210.586730]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  210.592144] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  210.598467]  ? __lock_acquire+0x62f/0x4c20
[  210.603543] syz-executor2 cpuset=syz2 mems_allowed=0
[  210.614030]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  210.628468]  ? __lock_acquire+0x62f/0x4c20
[  210.632709]  ? should_fail+0x22d/0xd01
[  210.636596]  ? rcu_irq_exit+0x1a2/0x390
[  210.640596]  ? mark_held_locks+0x130/0x130
[  210.644849]  ? mark_held_locks+0x130/0x130
[  210.649091]  ? mark_held_locks+0xc7/0x130
[  210.653241]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  210.658260]  ? zap_class+0x640/0x640
[  210.661979]  ? print_usage_bug+0xc0/0xc0
[  210.666045]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  210.671590]  ? check_preemption_disabled+0x48/0x280
[  210.676619]  ? __lock_is_held+0xb5/0x140
[  210.680713]  __alloc_pages_nodemask+0xad8/0xea0
[  210.685390]  ? zap_class+0x640/0x640
[  210.689109]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  210.706918]  ? find_held_lock+0x36/0x1c0
[  210.710997]  ? ____cache_alloc_node+0x1c7/0x1e0
[  210.715679]  ? lock_downgrade+0x900/0x900
[  210.719839]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  210.725390]  cache_grow_begin+0xa5/0x8c0
[  210.729454]  ? do_raw_spin_unlock+0xa7/0x330
[  210.733871]  fallback_alloc+0x204/0x2e0
[  210.737853]  ____cache_alloc_node+0x1c7/0x1e0
[  210.742360]  kmem_cache_alloc_node+0xe3/0x730
[  210.746858]  ? ipv6_get_ifaddr+0x42e/0x620
[  210.751104]  __alloc_skb+0x119/0x770
[  210.755305]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  210.760587]  ? netdev_alloc_frag+0x1f0/0x1f0
[  210.764995]  ? lock_downgrade+0x900/0x900
[  210.769169]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  210.774707]  ? refcount_sub_and_test_checked+0x203/0x310
[  210.780166]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  210.785617]  ? addrconf_rs_timer+0x690/0x690
[  210.790048]  ndisc_alloc_skb+0x144/0x340
[  210.794114]  ndisc_send_rs+0x331/0x6e0
[  210.798016]  addrconf_rs_timer+0x314/0x690
[  210.802259]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  210.806508]  call_timer_fn+0x272/0x920
[  210.810407]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  210.814648]  ? process_timeout+0x40/0x40
[  210.818726]  ? mark_held_locks+0xc7/0x130
[  210.822880]  ? _raw_spin_unlock_irq+0x27/0x80
[  210.827375]  ? _raw_spin_unlock_irq+0x27/0x80
[  210.831866]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  210.836099]  ? lockdep_hardirqs_on+0x296/0x5b0
[  210.840683]  ? trace_hardirqs_on+0xbd/0x310
[  210.845002]  ? kasan_check_read+0x11/0x20
[  210.849154]  ? __run_timers+0x7da/0xc70
[  210.853170]  ? trace_hardirqs_off_caller+0x310/0x310
[  210.858284]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  210.862521]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  210.866777]  __run_timers+0x7e5/0xc70
[  210.870588]  ? timer_fixup_init+0x70/0x70
[  210.874740]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  210.879759]  ? zap_class+0x640/0x640
[  210.883478]  ? print_usage_bug+0xc0/0xc0
[  210.887551]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  210.892748]  ? find_held_lock+0x36/0x1c0
[  210.896817]  ? zap_class+0x640/0x640
[  210.900537]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  210.906077]  ? check_preemption_disabled+0x48/0x280
[  210.911102]  ? __lock_is_held+0xb5/0x140
[  210.915181]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  210.920716]  ? check_preemption_disabled+0x48/0x280
[  210.925743]  run_timer_softirq+0x52/0xb0
[  210.929806]  ? rcu_read_lock_sched_held+0x14f/0x180
[  210.934822]  __do_softirq+0x308/0xb7e
[  210.938636]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  210.943166]  ? lock_downgrade+0x900/0x900
[  210.947319]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  210.952446]  ? pvclock_read_flags+0x160/0x160
[  210.956942]  ? lapic_next_event+0x5a/0x90
[  210.961111]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  210.966661]  ? kvm_clock_read+0x18/0x30
[  210.970641]  ? kvm_sched_clock_read+0x9/0x20
[  210.975060]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  210.980600]  ? check_preemption_disabled+0x48/0x280
[  210.985670]  irq_exit+0x17f/0x1c0
[  210.989128]  smp_apic_timer_interrupt+0x1cb/0x760
[  210.993971]  ? smp_reschedule_interrupt+0x109/0x650
[  210.998988]  ? smp_call_function_single_interrupt+0x650/0x650
[  211.004870]  ? interrupt_entry+0xb5/0xc0
[  211.008935]  ? trace_hardirqs_off_caller+0xbb/0x310
[  211.013952]  ? trace_hardirqs_off_caller+0xbb/0x310
[  211.018967]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  211.023812]  ? trace_hardirqs_on_caller+0x310/0x310
[  211.028824]  ? trace_hardirqs_on_caller+0x310/0x310
[  211.033842]  ? task_prio+0x50/0x50
[  211.037392]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  211.042929]  ? check_preemption_disabled+0x48/0x280
[  211.047954]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  211.052805]  apic_timer_interrupt+0xf/0x20
[  211.057036]  </IRQ>
[  211.059304] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  211.064500] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  211.083397] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  211.091114] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  211.098415] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  211.105680] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  211.112944] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  211.120210] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  211.127527]  retint_kernel+0x1b/0x2d
[  211.131239] RIP: 0010:dump_stack+0x358/0x39d
[  211.135654] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  211.154553] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  211.162257] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  211.169541] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  211.176822] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  211.184107] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  211.191374] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  211.198667]  ? dump_stack+0x34f/0x39d
[  211.202481]  ? dump_stack_print_info.cold.1+0x20/0x20
[  211.207673]  ? mark_held_locks+0x130/0x130
[  211.211910]  ? mark_held_locks+0x130/0x130
[  211.216156]  dump_header+0x27b/0xf72
[  211.219885]  ? pagefault_out_of_memory+0x197/0x197
[  211.224819]  ? __lock_acquire+0x62f/0x4c20
[  211.229061]  ? print_usage_bug+0xc0/0xc0
[  211.233128]  ? zap_class+0x640/0x640
[  211.236867]  ? print_usage_bug+0xc0/0xc0
[  211.240930]  ? print_usage_bug+0xc0/0xc0
[  211.244991]  ? print_usage_bug+0xc0/0xc0
[  211.249091]  ? find_held_lock+0x36/0x1c0
[  211.253193]  ? mark_held_locks+0xc7/0x130
[  211.257348]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  211.262454]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  211.267570]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  211.272197]  ? trace_hardirqs_on+0xbd/0x310
[  211.276532]  ? kasan_check_read+0x11/0x20
[  211.280682]  ? ___ratelimit+0x3b4/0x672
[  211.284662]  ? trace_hardirqs_off_caller+0x310/0x310
[  211.289768]  ? trace_hardirqs_on+0x310/0x310
[  211.294194]  ? lock_downgrade+0x900/0x900
[  211.298345]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  211.303448]  ? ___ratelimit+0x3b9/0x672
[  211.307435]  ? idr_get_free+0xf70/0xf70
[  211.311408]  ? kasan_check_read+0x11/0x20
[  211.315566]  ? do_raw_spin_unlock+0xa7/0x330
[  211.319982]  oom_kill_process.cold.27+0x10/0x903
[  211.324742]  ? zap_class+0x640/0x640
[  211.328455]  ? _raw_spin_unlock+0x2c/0x50
[  211.332616]  ? oom_badness+0xe6/0xaa0
[  211.336424]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  211.341350]  ? kasan_check_read+0x11/0x20
[  211.345495]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  211.350770]  ? oom_evaluate_task+0x540/0x540
[  211.355191]  ? find_held_lock+0x36/0x1c0
[  211.359263]  ? out_of_memory+0x974/0x1430
[  211.363414]  ? lock_downgrade+0x900/0x900
[  211.367566]  ? check_preemption_disabled+0x48/0x280
[  211.372586]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  211.377518]  ? kasan_check_read+0x11/0x20
[  211.381666]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  211.386945]  ? rcu_softirq_qs+0x20/0x20
[  211.390929]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  211.396463]  ? oom_evaluate_task+0x302/0x540
[  211.400880]  out_of_memory+0xa84/0x1430
[  211.404866]  ? oom_killer_disable+0x3a0/0x3a0
[  211.409360]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  211.414294]  ? __ww_mutex_check_waiters+0x160/0x160
[  211.419312]  __alloc_pages_slowpath+0x232c/0x2de0
[  211.424216]  ? warn_alloc+0x120/0x120
[  211.428014]  ? mark_held_locks+0x130/0x130
[  211.432253]  ? find_get_entry+0xaae/0x1120
[  211.436515]  ? filemap_map_pages+0x1a20/0x1a20
[  211.441127]  ? zap_class+0x640/0x640
[  211.444848]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  211.450391]  ? check_preemption_disabled+0x48/0x280
[  211.455408]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  211.460944]  ? should_fail+0x22d/0xd01
[  211.464835]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  211.469938]  ? zap_class+0x640/0x640
[  211.473687]  ? __lock_is_held+0xb5/0x140
[  211.477755]  ? mark_held_locks+0x130/0x130
[  211.481993]  ? lock_release+0xa00/0xa00
[  211.485966]  ? perf_trace_sched_process_exec+0x860/0x860
[  211.491427]  ? xa_load+0x2ba/0x460
[  211.494967]  ? lock_downgrade+0x900/0x900
[  211.499116]  ? __might_sleep+0x95/0x190
[  211.503113]  __alloc_pages_nodemask+0xad8/0xea0
[  211.507787]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  211.512810]  ? __page_cache_alloc+0x191/0x5c0
[  211.517302]  ? xa_load+0x2e1/0x460
[  211.520844]  ? xa_clear_mark+0x40/0x40
[  211.524734]  ? zap_class+0x640/0x640
[  211.528463]  ? zap_class+0x640/0x640
[  211.532176]  ? zap_class+0x640/0x640
[  211.535887]  ? __do_page_cache_readahead+0x663/0x810
[  211.540996]  ? find_held_lock+0x36/0x1c0
[  211.545064]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  211.550606]  alloc_pages_current+0x173/0x350
[  211.555026]  __page_cache_alloc+0x38c/0x5c0
[  211.559372]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  211.564300]  ? kasan_check_read+0x11/0x20
[  211.568499]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  211.573777]  ? generic_perform_write+0x6a0/0x6a0
[  211.578540]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  211.584090]  ? check_preemption_disabled+0x48/0x280
[  211.589132]  filemap_fault+0x1595/0x25f0
[  211.593231]  ? __lock_page_or_retry+0xa00/0xa00
[  211.597902]  ? mark_held_locks+0x130/0x130
[  211.602143]  ? filemap_map_pages+0xd6b/0x1a20
[  211.606649]  ? lock_downgrade+0x900/0x900
[  211.610798]  ? check_preemption_disabled+0x48/0x280
[  211.615818]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  211.620747]  ? kasan_check_read+0x11/0x20
[  211.624892]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  211.630175]  ? rcu_softirq_qs+0x20/0x20
[  211.634175]  ? filemap_map_pages+0xd92/0x1a20
[  211.638685]  ? find_get_entries_tag+0x1400/0x1400
[  211.643531]  ? debug_object_destroy+0x2b0/0x2b0
[  211.648207]  ? lock_pi_update_atomic+0x150/0x150
[  211.652961]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  211.658510]  ? lock_acquire+0x1ed/0x520
[  211.662481]  ? ext4_filemap_fault+0x7a/0xad
[  211.666807]  ? lock_release+0xa00/0xa00
[  211.670782]  ? perf_trace_sched_process_exec+0x860/0x860
[  211.676229]  ? print_usage_bug+0xc0/0xc0
[  211.680288]  ? print_usage_bug+0xc0/0xc0
[  211.684359]  ? down_read+0x8d/0x120
[  211.687983]  ? ext4_filemap_fault+0x7a/0xad
[  211.692301]  ? __down_interruptible+0x700/0x700
[  211.696978]  ext4_filemap_fault+0x82/0xad
[  211.701128]  __do_fault+0x100/0x6b0
[  211.704774]  ? pmd_devmap_trans_unstable+0x220/0x220
[  211.709879]  ? mark_held_locks+0x130/0x130
[  211.714115]  ? mark_held_locks+0x130/0x130
[  211.718374]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  211.723138]  ? retint_kernel+0x2d/0x2d
[  211.727034]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  211.732576]  __handle_mm_fault+0x3ea0/0x5be0
[  211.736985]  ? perf_trace_lock+0x7a0/0x7a0
[  211.741225]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  211.746076]  ? __switch_to_asm+0x34/0x70
[  211.750135]  ? __switch_to_asm+0x34/0x70
[  211.754212]  ? zap_class+0x640/0x640
[  211.757926]  ? zap_class+0x640/0x640
[  211.761644]  ? __x64_sys_futex+0x53e/0x6a0
[  211.765888]  ? find_held_lock+0x36/0x1c0
[  211.769961]  ? handle_mm_fault+0x42a/0xc70
[  211.774195]  ? lock_downgrade+0x900/0x900
[  211.778342]  ? check_preemption_disabled+0x48/0x280
[  211.783360]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  211.788290]  ? kasan_check_read+0x11/0x20
[  211.792435]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  211.797710]  ? rcu_softirq_qs+0x20/0x20
[  211.801686]  ? trace_hardirqs_off_caller+0x310/0x310
[  211.806794]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  211.812329]  ? check_preemption_disabled+0x48/0x280
[  211.817353]  handle_mm_fault+0x54f/0xc70
[  211.821436]  ? __handle_mm_fault+0x5be0/0x5be0
[  211.826038]  ? find_vma+0x34/0x190
[  211.829587]  __do_page_fault+0x5e8/0xe60
[  211.833651]  ? trace_hardirqs_off+0xb8/0x310
[  211.838073]  do_page_fault+0xf2/0x7e0
[  211.841872]  ? vmalloc_sync_all+0x30/0x30
[  211.846022]  ? error_entry+0x70/0xd0
[  211.849737]  ? trace_hardirqs_off_caller+0xbb/0x310
[  211.854755]  ? trace_hardirqs_on_caller+0xc0/0x310
[  211.859682]  ? syscall_return_slowpath+0x5e0/0x5e0
[  211.864609]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  211.869457]  ? trace_hardirqs_on_caller+0x310/0x310
[  211.874469]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  211.879922]  ? prepare_exit_to_usermode+0x291/0x3b0
[  211.884936]  ? page_fault+0x8/0x30
[  211.888477]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  211.893318]  ? page_fault+0x8/0x30
[  211.896875]  page_fault+0x1e/0x30
[  211.900328] RIP: 0033:0x4290d7
[  211.903537] Code: Bad RIP value.
[  211.906895] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  211.912254] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  211.919544] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  211.926805] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  211.934070] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  211.941333] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  211.948635] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  211.948703] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  211.955916] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  211.955921] Call Trace:
[  211.955927]  <IRQ>
[  211.955946]  dump_stack+0x244/0x39d
[  211.955964]  ? dump_stack_print_info.cold.1+0x20/0x20
[  211.962536] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  211.971795]  warn_alloc.cold.116+0xb7/0x1bd
[  211.974348] syz-fuzzer cpuset=/ mems_allowed=0
[  211.976494]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  212.009169]  ? lock_downgrade+0x900/0x900
[  212.013324]  ? trace_hardirqs_off+0xb8/0x310
[  212.017737]  ? trace_hardirqs_off+0xb8/0x310
[  212.022184]  __alloc_pages_slowpath+0x2651/0x2de0
[  212.027067]  ? warn_alloc+0x120/0x120
[  212.030870]  ? print_usage_bug+0xc0/0xc0
[  212.034933]  ? warn_alloc+0x120/0x120
[  212.038738]  ? warn_alloc+0x120/0x120
[  212.042536]  ? print_usage_bug+0xc0/0xc0
[  212.046594]  ? kvm_clock_read+0x18/0x30
[  212.050576]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  212.055592]  ? print_usage_bug+0xc0/0xc0
[  212.059669]  ? __lock_acquire+0x62f/0x4c20
[  212.063908]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  212.069454]  ? should_fail+0x22d/0xd01
[  212.073343]  ? __lock_acquire+0x62f/0x4c20
[  212.077592]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  212.082726]  ? __lock_acquire+0x62f/0x4c20
[  212.086961]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  212.092060]  ? __lock_acquire+0x62f/0x4c20
[  212.096290]  ? should_fail+0x22d/0xd01
[  212.100185]  ? mark_held_locks+0x130/0x130
[  212.104426]  ? mark_held_locks+0x130/0x130
[  212.108671]  ? zap_class+0x640/0x640
[  212.112391]  ? print_usage_bug+0xc0/0xc0
[  212.116455]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  212.121994]  ? check_preemption_disabled+0x48/0x280
[  212.127024]  ? __lock_is_held+0xb5/0x140
[  212.131107]  __alloc_pages_nodemask+0xad8/0xea0
[  212.135787]  ? zap_class+0x640/0x640
[  212.139503]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  212.144530]  ? find_held_lock+0x36/0x1c0
[  212.148595]  ? ____cache_alloc_node+0x1c7/0x1e0
[  212.153267]  ? lock_downgrade+0x900/0x900
[  212.157424]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  212.162968]  cache_grow_begin+0xa5/0x8c0
[  212.167046]  ? do_raw_spin_unlock+0xa7/0x330
[  212.171473]  fallback_alloc+0x204/0x2e0
[  212.175454]  ____cache_alloc_node+0x1c7/0x1e0
[  212.179955]  kmem_cache_alloc_node+0xe3/0x730
[  212.184468]  ? ipv6_get_ifaddr+0x42e/0x620
[  212.188716]  __alloc_skb+0x119/0x770
[  212.192425]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  212.197704]  ? netdev_alloc_frag+0x1f0/0x1f0
[  212.202124]  ? lock_downgrade+0x900/0x900
[  212.206281]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  212.211831]  ? refcount_sub_and_test_checked+0x203/0x310
[  212.217285]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  212.222731]  ? addrconf_rs_timer+0x690/0x690
[  212.227149]  ndisc_alloc_skb+0x144/0x340
[  212.231220]  ndisc_send_rs+0x331/0x6e0
[  212.235113]  addrconf_rs_timer+0x314/0x690
[  212.239351]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  212.243606]  call_timer_fn+0x272/0x920
[  212.247502]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  212.251733]  ? process_timeout+0x40/0x40
[  212.255812]  ? __run_timers+0x7da/0xc70
[  212.259785]  ? _raw_spin_unlock_irq+0x27/0x80
[  212.264277]  ? _raw_spin_unlock_irq+0x27/0x80
[  212.268770]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  212.273008]  ? lockdep_hardirqs_on+0x296/0x5b0
[  212.277592]  ? trace_hardirqs_on+0xbd/0x310
[  212.281922]  ? kasan_check_read+0x11/0x20
[  212.286066]  ? __run_timers+0x7da/0xc70
[  212.290040]  ? trace_hardirqs_off_caller+0x310/0x310
[  212.295167]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  212.299400]  __run_timers+0x7e5/0xc70
[  212.303207]  ? timer_fixup_init+0x70/0x70
[  212.307356]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  212.312370]  ? zap_class+0x640/0x640
[  212.316091]  ? enqueue_hrtimer+0x1a5/0x560
[  212.320325]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  212.325522]  ? find_held_lock+0x36/0x1c0
[  212.329585]  ? zap_class+0x640/0x640
[  212.333302]  ? pvclock_read_flags+0x160/0x160
[  212.337799]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  212.343338]  ? check_preemption_disabled+0x48/0x280
[  212.348361]  ? __lock_is_held+0xb5/0x140
[  212.352422]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  212.357957]  ? check_preemption_disabled+0x48/0x280
[  212.362979]  run_timer_softirq+0x52/0xb0
[  212.367038]  ? rcu_read_lock_sched_held+0x14f/0x180
[  212.372062]  __do_softirq+0x308/0xb7e
[  212.375867]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  212.380358]  ? lock_downgrade+0x900/0x900
[  212.384514]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  212.389634]  ? pvclock_read_flags+0x160/0x160
[  212.394138]  ? lapic_next_event+0x5a/0x90
[  212.398302]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  212.403875]  ? kvm_clock_read+0x18/0x30
[  212.407853]  ? kvm_sched_clock_read+0x9/0x20
[  212.412261]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  212.417816]  ? check_preemption_disabled+0x48/0x280
[  212.422840]  irq_exit+0x17f/0x1c0
[  212.426292]  smp_apic_timer_interrupt+0x1cb/0x760
[  212.431131]  ? smp_reschedule_interrupt+0x109/0x650
[  212.436177]  ? smp_call_function_single_interrupt+0x650/0x650
[  212.442087]  ? interrupt_entry+0xb5/0xc0
[  212.446163]  ? trace_hardirqs_off_caller+0xbb/0x310
[  212.451177]  ? trace_hardirqs_off_caller+0xbb/0x310
[  212.456191]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  212.461037]  ? trace_hardirqs_on_caller+0x310/0x310
[  212.466051]  ? trace_hardirqs_on_caller+0x310/0x310
[  212.471082]  ? task_prio+0x50/0x50
[  212.474633]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  212.480192]  ? check_preemption_disabled+0x48/0x280
[  212.485227]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  212.490078]  apic_timer_interrupt+0xf/0x20
[  212.494308]  </IRQ>
[  212.496544] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  212.501472] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  212.520369] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  212.528075] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  212.535344] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  212.542607] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  212.549888] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  212.557175] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  212.564477]  skb_clone+0x1bb/0x500
[  212.568018]  ? skb_split+0x11e0/0x11e0
[  212.571927]  ? preempt_notifier_register+0x200/0x200
[  212.577023]  ? __switch_to_asm+0x34/0x70
[  212.581093]  ? __switch_to_asm+0x34/0x70
[  212.585152]  ? __switch_to_asm+0x40/0x70
[  212.589210]  ? __switch_to_asm+0x34/0x70
[  212.593270]  ? __switch_to_asm+0x40/0x70
[  212.597326]  ? __switch_to_asm+0x40/0x70
[  212.601385]  ? __switch_to_asm+0x34/0x70
[  212.605451]  ? __switch_to_asm+0x34/0x70
[  212.609525]  ? __switch_to_asm+0x40/0x70
[  212.613583]  ? __switch_to_asm+0x34/0x70
[  212.617662]  bpf_clone_redirect+0xb9/0x490
[  212.622352]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  212.627372]  ? __sched_text_start+0x8/0x8
[  212.631522]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  212.636106]  ? retint_kernel+0x2d/0x2d
[  212.639995]  ? trace_hardirqs_on_caller+0xc0/0x310
[  212.644929]  ? find_held_lock+0x36/0x1c0
[  212.649003]  ? lock_acquire+0x1ed/0x520
[  212.652975]  ? bpf_test_run+0x3cb/0x780
[  212.656952]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  212.662494]  ? check_preemption_disabled+0x48/0x280
[  212.667517]  ? kasan_check_read+0x11/0x20
[  212.671667]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  212.676943]  ? rcu_softirq_qs+0x20/0x20
[  212.680920]  ? preempt_schedule+0x4d/0x60
[  212.685065]  ? ___preempt_schedule+0x16/0x18
[  212.689485]  ? bpf_test_run+0x25d/0x780
[  212.693474]  ? netlink_diag_dump+0x2a0/0x2a0
[  212.697888]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  212.703428]  ? bpf_test_init.isra.10+0x70/0x100
[  212.708101]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  212.712869]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  212.717710]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  212.723251]  ? fput+0x130/0x1a0
[  212.726535]  ? __bpf_prog_get+0x9b/0x290
[  212.730598]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  212.735446]  ? bpf_prog_test_run+0x130/0x1a0
[  212.739856]  ? __x64_sys_bpf+0x3db/0x520
[  212.743916]  ? bpf_prog_get+0x20/0x20
[  212.747739]  ? do_syscall_64+0x1b9/0x820
[  212.751797]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  212.757165]  ? syscall_return_slowpath+0x5e0/0x5e0
[  212.762093]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  212.766935]  ? trace_hardirqs_on_caller+0x310/0x310
[  212.771953]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  212.776975]  ? prepare_exit_to_usermode+0x291/0x3b0
[  212.781997]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  212.786850]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  212.792235] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  212.792240] warn_alloc_show_mem: 1 callbacks suppressed
[  212.792247] Mem-Info:
[  212.799255] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  212.804619] active_anon:57128 inactive_anon:971 isolated_anon:0
[  212.804619]  active_file:40 inactive_file:20 isolated_file:0
[  212.804619]  unevictable:0 dirty:11 writeback:0 unstable:0
[  212.804619]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  212.804619]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  212.804619]  free:13615 free_pcp:64 free_cma:0
[  212.806990] Call Trace:
[  212.816379] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  212.849310]  <IRQ>
[  212.851880] 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
[  212.879807]  dump_stack+0x244/0x39d
[  212.881925] lowmem_reserve[]: 0 2818 6321 6321
[  212.908040]  ? dump_stack_print_info.cold.1+0x20/0x20
[  212.911641] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  212.916224]  warn_alloc.cold.116+0xb7/0x1bd
[  212.921378] lowmem_reserve[]: 0 0 3503 3503
[  212.948872]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  212.953185] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  212.957518]  ? lock_downgrade+0x900/0x900
[  212.962342] lowmem_reserve[]: 0 0 0 0
[  212.991486]  ? trace_hardirqs_off+0xb8/0x310
[  212.995603] 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
[  212.999406]  ? trace_hardirqs_off+0xb8/0x310
[  213.003785] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  213.017308]  __alloc_pages_slowpath+0x2651/0x2de0
[  213.021690] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  213.036794]  ? warn_alloc+0x120/0x120
[  213.041593] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  213.057098]  ? print_usage_bug+0xc0/0xc0
[  213.060878] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  213.069698]  ? warn_alloc+0x120/0x120
[  213.073736] 5171 total pagecache pages
[  213.082301]  ? warn_alloc+0x120/0x120
[  213.086085] 0 pages in swap cache
[  213.089962]  ? print_usage_bug+0xc0/0xc0
[  213.093744] Swap cache stats: add 0, delete 0, find 0/0
[  213.097217]  ? kvm_clock_read+0x18/0x30
[  213.101263] Free swap  = 0kB
[  213.106645]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  213.110595] Total swap = 0kB
[  213.113611]  ? print_usage_bug+0xc0/0xc0
[  213.118609] 1965979 pages RAM
[  213.121633]  ? __lock_acquire+0x62f/0x4c20
[  213.125678] 0 pages HighMem/MovableOnly
[  213.128783]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  213.132991] 342854 pages reserved
[  213.136957]  ? should_fail+0x22d/0xd01
[  213.142465] 0 pages cma reserved
[  213.145911]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  213.149839] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  213.153128]  ? __lock_acquire+0x62f/0x4c20
[  213.153181]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  213.153197]  ? __lock_acquire+0x62f/0x4c20
[  213.158349] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  213.164782]  ? should_fail+0x22d/0xd01
[  213.168990] syz-executor2 cpuset=syz2 mems_allowed=0
[  213.174093]  ? mark_held_locks+0x130/0x130
[  213.201974]  ? mark_held_locks+0x130/0x130
[  213.206220]  ? zap_class+0x640/0x640
[  213.209932]  ? print_usage_bug+0xc0/0xc0
[  213.214002]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  213.219558]  ? check_preemption_disabled+0x48/0x280
[  213.224581]  ? __lock_is_held+0xb5/0x140
[  213.228653]  __alloc_pages_nodemask+0xad8/0xea0
[  213.233324]  ? zap_class+0x640/0x640
[  213.237042]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  213.242067]  ? find_held_lock+0x36/0x1c0
[  213.246139]  ? ____cache_alloc_node+0x1c7/0x1e0
[  213.250813]  ? lock_downgrade+0x900/0x900
[  213.254969]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  213.260513]  cache_grow_begin+0xa5/0x8c0
[  213.264575]  ? do_raw_spin_unlock+0xa7/0x330
[  213.268991]  fallback_alloc+0x204/0x2e0
[  213.272971]  ____cache_alloc_node+0x1c7/0x1e0
[  213.277473]  kmem_cache_alloc_node+0xe3/0x730
[  213.281968]  ? ipv6_get_ifaddr+0x42e/0x620
[  213.286215]  __alloc_skb+0x119/0x770
[  213.289925]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  213.295203]  ? netdev_alloc_frag+0x1f0/0x1f0
[  213.299609]  ? lock_downgrade+0x900/0x900
[  213.303773]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  213.309308]  ? refcount_sub_and_test_checked+0x203/0x310
[  213.314764]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  213.320214]  ? addrconf_rs_timer+0x690/0x690
[  213.324641]  ndisc_alloc_skb+0x144/0x340
[  213.328712]  ndisc_send_rs+0x331/0x6e0
[  213.332603]  addrconf_rs_timer+0x314/0x690
[  213.336851]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  213.341094]  call_timer_fn+0x272/0x920
[  213.344980]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  213.349215]  ? process_timeout+0x40/0x40
[  213.353282]  ? mark_held_locks+0xc7/0x130
[  213.357434]  ? _raw_spin_unlock_irq+0x27/0x80
[  213.361928]  ? _raw_spin_unlock_irq+0x27/0x80
[  213.366419]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  213.370657]  ? lockdep_hardirqs_on+0x296/0x5b0
[  213.375240]  ? trace_hardirqs_on+0xbd/0x310
[  213.379559]  ? kasan_check_read+0x11/0x20
[  213.383702]  ? __run_timers+0x7da/0xc70
[  213.387681]  ? trace_hardirqs_off_caller+0x310/0x310
[  213.392796]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  213.397030]  __run_timers+0x7e5/0xc70
[  213.400844]  ? timer_fixup_init+0x70/0x70
[  213.404992]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  213.410007]  ? zap_class+0x640/0x640
[  213.413727]  ? print_usage_bug+0xc0/0xc0
[  213.417787]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  213.422985]  ? find_held_lock+0x36/0x1c0
[  213.427052]  ? zap_class+0x640/0x640
[  213.430772]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  213.436314]  ? check_preemption_disabled+0x48/0x280
[  213.441340]  ? __lock_is_held+0xb5/0x140
[  213.445402]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  213.450939]  ? check_preemption_disabled+0x48/0x280
[  213.455964]  run_timer_softirq+0x52/0xb0
[  213.460024]  ? rcu_read_lock_sched_held+0x14f/0x180
[  213.465039]  __do_softirq+0x308/0xb7e
[  213.468846]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  213.473341]  ? lock_downgrade+0x900/0x900
[  213.477491]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  213.482603]  ? pvclock_read_flags+0x160/0x160
[  213.487108]  ? lapic_next_event+0x5a/0x90
[  213.491257]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  213.496803]  ? kvm_clock_read+0x18/0x30
[  213.500778]  ? kvm_sched_clock_read+0x9/0x20
[  213.505186]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  213.510722]  ? check_preemption_disabled+0x48/0x280
[  213.515745]  irq_exit+0x17f/0x1c0
[  213.519215]  smp_apic_timer_interrupt+0x1cb/0x760
[  213.524069]  ? smp_reschedule_interrupt+0x109/0x650
[  213.529103]  ? smp_call_function_single_interrupt+0x650/0x650
[  213.535005]  ? interrupt_entry+0xb5/0xc0
[  213.539064]  ? trace_hardirqs_off_caller+0xbb/0x310
[  213.544080]  ? trace_hardirqs_off_caller+0xbb/0x310
[  213.549097]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  213.553939]  ? trace_hardirqs_on_caller+0x310/0x310
[  213.558958]  ? trace_hardirqs_on_caller+0x310/0x310
[  213.563970]  ? task_prio+0x50/0x50
[  213.567513]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  213.573048]  ? check_preemption_disabled+0x48/0x280
[  213.578071]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  213.582921]  apic_timer_interrupt+0xf/0x20
[  213.587146]  </IRQ>
[  213.589393] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  213.594612] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  213.613520] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  213.621222] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  213.628486] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  213.635749] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  213.643016] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  213.650280] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  213.657574]  retint_kernel+0x1b/0x2d
[  213.661288] RIP: 0010:dump_stack+0x358/0x39d
[  213.665697] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  213.684596] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  213.692308] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  213.699572] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  213.706838] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  213.714132] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  213.721426] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  213.728708]  ? dump_stack+0x34f/0x39d
[  213.732519]  ? dump_stack_print_info.cold.1+0x20/0x20
[  213.737715]  ? mark_held_locks+0x130/0x130
[  213.741956]  ? mark_held_locks+0x130/0x130
[  213.746195]  dump_header+0x27b/0xf72
[  213.749923]  ? pagefault_out_of_memory+0x197/0x197
[  213.754858]  ? __lock_acquire+0x62f/0x4c20
[  213.759095]  ? print_usage_bug+0xc0/0xc0
[  213.763165]  ? zap_class+0x640/0x640
[  213.766880]  ? print_usage_bug+0xc0/0xc0
[  213.770942]  ? print_usage_bug+0xc0/0xc0
[  213.775007]  ? print_usage_bug+0xc0/0xc0
[  213.779077]  ? find_held_lock+0x36/0x1c0
[  213.783180]  ? mark_held_locks+0xc7/0x130
[  213.787331]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  213.792436]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  213.797538]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  213.802123]  ? trace_hardirqs_on+0xbd/0x310
[  213.806447]  ? kasan_check_read+0x11/0x20
[  213.810594]  ? ___ratelimit+0x3b4/0x672
[  213.814576]  ? trace_hardirqs_off_caller+0x310/0x310
[  213.819707]  ? trace_hardirqs_on+0x310/0x310
[  213.824114]  ? lock_downgrade+0x900/0x900
[  213.828262]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  213.833382]  ? ___ratelimit+0x3b9/0x672
[  213.837374]  ? idr_get_free+0xf70/0xf70
[  213.841350]  ? kasan_check_read+0x11/0x20
[  213.845508]  ? do_raw_spin_unlock+0xa7/0x330
[  213.849923]  oom_kill_process.cold.27+0x10/0x903
[  213.854723]  ? zap_class+0x640/0x640
[  213.858433]  ? _raw_spin_unlock+0x2c/0x50
[  213.862576]  ? oom_badness+0xe6/0xaa0
[  213.866372]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  213.871299]  ? kasan_check_read+0x11/0x20
[  213.875442]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  213.880719]  ? oom_evaluate_task+0x540/0x540
[  213.885128]  ? find_held_lock+0x36/0x1c0
[  213.889208]  ? out_of_memory+0x974/0x1430
[  213.893373]  ? lock_downgrade+0x900/0x900
[  213.897534]  ? check_preemption_disabled+0x48/0x280
[  213.902551]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  213.907480]  ? kasan_check_read+0x11/0x20
[  213.911633]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  213.916920]  ? rcu_softirq_qs+0x20/0x20
[  213.920898]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  213.926446]  ? oom_evaluate_task+0x302/0x540
[  213.930878]  out_of_memory+0xa84/0x1430
[  213.934863]  ? oom_killer_disable+0x3a0/0x3a0
[  213.939361]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  213.944296]  ? __ww_mutex_check_waiters+0x160/0x160
[  213.949324]  __alloc_pages_slowpath+0x232c/0x2de0
[  213.954201]  ? warn_alloc+0x120/0x120
[  213.958002]  ? mark_held_locks+0x130/0x130
[  213.962245]  ? find_get_entry+0xaae/0x1120
[  213.966490]  ? filemap_map_pages+0x1a20/0x1a20
[  213.971092]  ? zap_class+0x640/0x640
[  213.974809]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  213.980345]  ? check_preemption_disabled+0x48/0x280
[  213.985360]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  213.990900]  ? should_fail+0x22d/0xd01
[  213.994795]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  213.999896]  ? zap_class+0x640/0x640
[  214.003640]  ? __lock_is_held+0xb5/0x140
[  214.007709]  ? mark_held_locks+0x130/0x130
[  214.011949]  ? lock_release+0xa00/0xa00
[  214.015928]  ? perf_trace_sched_process_exec+0x860/0x860
[  214.021377]  ? xa_load+0x2ba/0x460
[  214.024916]  ? lock_downgrade+0x900/0x900
[  214.029068]  ? __might_sleep+0x95/0x190
[  214.033049]  __alloc_pages_nodemask+0xad8/0xea0
[  214.037728]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  214.042744]  ? __page_cache_alloc+0x191/0x5c0
[  214.047250]  ? xa_load+0x2e1/0x460
[  214.050806]  ? xa_clear_mark+0x40/0x40
[  214.054693]  ? zap_class+0x640/0x640
[  214.058417]  ? zap_class+0x640/0x640
[  214.062129]  ? zap_class+0x640/0x640
[  214.065879]  ? __do_page_cache_readahead+0x663/0x810
[  214.070990]  ? find_held_lock+0x36/0x1c0
[  214.075097]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  214.080658]  alloc_pages_current+0x173/0x350
[  214.085085]  __page_cache_alloc+0x38c/0x5c0
[  214.089402]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  214.094329]  ? kasan_check_read+0x11/0x20
[  214.098474]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  214.103756]  ? generic_perform_write+0x6a0/0x6a0
[  214.108511]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  214.114045]  ? check_preemption_disabled+0x48/0x280
[  214.119070]  filemap_fault+0x1595/0x25f0
[  214.123143]  ? __lock_page_or_retry+0xa00/0xa00
[  214.127828]  ? mark_held_locks+0x130/0x130
[  214.132070]  ? filemap_map_pages+0xd6b/0x1a20
[  214.136564]  ? lock_downgrade+0x900/0x900
[  214.140714]  ? check_preemption_disabled+0x48/0x280
[  214.145733]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  214.150658]  ? kasan_check_read+0x11/0x20
[  214.154806]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  214.160079]  ? rcu_softirq_qs+0x20/0x20
[  214.164093]  ? filemap_map_pages+0xd92/0x1a20
[  214.168599]  ? find_get_entries_tag+0x1400/0x1400
[  214.173466]  ? debug_object_destroy+0x2b0/0x2b0
[  214.178138]  ? lock_pi_update_atomic+0x150/0x150
[  214.182896]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  214.188442]  ? lock_acquire+0x1ed/0x520
[  214.192412]  ? ext4_filemap_fault+0x7a/0xad
[  214.196739]  ? lock_release+0xa00/0xa00
[  214.200719]  ? perf_trace_sched_process_exec+0x860/0x860
[  214.206190]  ? print_usage_bug+0xc0/0xc0
[  214.210256]  ? print_usage_bug+0xc0/0xc0
[  214.214327]  ? down_read+0x8d/0x120
[  214.217948]  ? ext4_filemap_fault+0x7a/0xad
[  214.222269]  ? __down_interruptible+0x700/0x700
[  214.226943]  ext4_filemap_fault+0x82/0xad
[  214.231106]  __do_fault+0x100/0x6b0
[  214.234746]  ? pmd_devmap_trans_unstable+0x220/0x220
[  214.239853]  ? mark_held_locks+0x130/0x130
[  214.244101]  ? mark_held_locks+0x130/0x130
[  214.248330]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  214.253096]  ? retint_kernel+0x2d/0x2d
[  214.256988]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  214.262527]  __handle_mm_fault+0x3ea0/0x5be0
[  214.266933]  ? perf_trace_lock+0x7a0/0x7a0
[  214.271189]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  214.276040]  ? __switch_to_asm+0x34/0x70
[  214.280117]  ? __switch_to_asm+0x34/0x70
[  214.284191]  ? zap_class+0x640/0x640
[  214.287901]  ? zap_class+0x640/0x640
[  214.291610]  ? __x64_sys_futex+0x53e/0x6a0
[  214.295855]  ? find_held_lock+0x36/0x1c0
[  214.299923]  ? handle_mm_fault+0x42a/0xc70
[  214.304162]  ? lock_downgrade+0x900/0x900
[  214.308310]  ? check_preemption_disabled+0x48/0x280
[  214.313329]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  214.318254]  ? kasan_check_read+0x11/0x20
[  214.322397]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  214.327672]  ? rcu_softirq_qs+0x20/0x20
[  214.331669]  ? trace_hardirqs_off_caller+0x310/0x310
[  214.336788]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  214.342324]  ? check_preemption_disabled+0x48/0x280
[  214.347348]  handle_mm_fault+0x54f/0xc70
[  214.351410]  ? __handle_mm_fault+0x5be0/0x5be0
[  214.356005]  ? find_vma+0x34/0x190
[  214.359562]  __do_page_fault+0x5e8/0xe60
[  214.363634]  ? trace_hardirqs_off+0xb8/0x310
[  214.368099]  do_page_fault+0xf2/0x7e0
[  214.371916]  ? vmalloc_sync_all+0x30/0x30
[  214.376090]  ? error_entry+0x70/0xd0
[  214.379806]  ? trace_hardirqs_off_caller+0xbb/0x310
[  214.384820]  ? trace_hardirqs_on_caller+0xc0/0x310
[  214.389749]  ? syscall_return_slowpath+0x5e0/0x5e0
[  214.394680]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  214.399527]  ? trace_hardirqs_on_caller+0x310/0x310
[  214.404540]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  214.409999]  ? prepare_exit_to_usermode+0x291/0x3b0
[  214.415016]  ? page_fault+0x8/0x30
[  214.418559]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  214.423420]  ? page_fault+0x8/0x30
[  214.426959]  page_fault+0x1e/0x30
[  214.430409] RIP: 0033:0x4290d7
[  214.433615] Code: Bad RIP value.
[  214.436985] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  214.442343] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  214.449609] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  214.456883] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  214.464159] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  214.471422] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  214.478715] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  214.478817] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  214.485989] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  214.485994] Call Trace:
[  214.486000]  <IRQ>
[  214.486019]  dump_stack+0x244/0x39d
[  214.486038]  ? dump_stack_print_info.cold.1+0x20/0x20
[  214.492596] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  214.501866]  warn_alloc.cold.116+0xb7/0x1bd
[  214.504418] syz-fuzzer cpuset=/ mems_allowed=0
[  214.506559]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  214.539234]  ? lock_downgrade+0x900/0x900
[  214.543386]  ? trace_hardirqs_off+0xb8/0x310
[  214.547804]  ? trace_hardirqs_off+0xb8/0x310
[  214.552217]  __alloc_pages_slowpath+0x2651/0x2de0
[  214.557086]  ? warn_alloc+0x120/0x120
[  214.560889]  ? print_usage_bug+0xc0/0xc0
[  214.564955]  ? warn_alloc+0x120/0x120
[  214.568764]  ? warn_alloc+0x120/0x120
[  214.572662]  ? print_usage_bug+0xc0/0xc0
[  214.576726]  ? print_usage_bug+0xc0/0xc0
[  214.580789]  ? __lock_acquire+0x62f/0x4c20
[  214.585028]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  214.590565]  ? should_fail+0x22d/0xd01
[  214.594455]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  214.599564]  ? __lock_acquire+0x62f/0x4c20
[  214.603805]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  214.608909]  ? __lock_acquire+0x62f/0x4c20
[  214.613139]  ? should_fail+0x22d/0xd01
[  214.617029]  ? find_held_lock+0x36/0x1c0
[  214.621592]  ? mark_held_locks+0x130/0x130
[  214.625838]  ? mark_held_locks+0x130/0x130
[  214.630072]  ? zap_class+0x640/0x640
[  214.633785]  ? zap_class+0x640/0x640
[  214.637498]  ? print_usage_bug+0xc0/0xc0
[  214.641560]  ? do_raw_spin_unlock+0xa7/0x330
[  214.645997]  ? zap_class+0x640/0x640
[  214.649711]  ? print_usage_bug+0xc0/0xc0
[  214.653772]  ? wq_watchdog_touch+0x9c/0xfe
[  214.658007]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  214.663550]  ? check_preemption_disabled+0x48/0x280
[  214.668575]  ? __lock_is_held+0xb5/0x140
[  214.672655]  __alloc_pages_nodemask+0xad8/0xea0
[  214.677323]  ? zap_class+0x640/0x640
[  214.681045]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  214.686072]  ? find_held_lock+0x36/0x1c0
[  214.690147]  ? ____cache_alloc_node+0x1c7/0x1e0
[  214.694825]  ? lock_downgrade+0x900/0x900
[  214.698978]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  214.704542]  cache_grow_begin+0xa5/0x8c0
[  214.708619]  ? do_raw_spin_unlock+0xa7/0x330
[  214.713050]  fallback_alloc+0x204/0x2e0
[  214.717067]  ____cache_alloc_node+0x1c7/0x1e0
[  214.721570]  kmem_cache_alloc_node+0xe3/0x730
[  214.726065]  ? ipv6_get_ifaddr+0x42e/0x620
[  214.730324]  __alloc_skb+0x119/0x770
[  214.734054]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  214.739336]  ? netdev_alloc_frag+0x1f0/0x1f0
[  214.743745]  ? lock_downgrade+0x900/0x900
[  214.747903]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  214.753445]  ? refcount_sub_and_test_checked+0x203/0x310
[  214.758903]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  214.764350]  ? addrconf_rs_timer+0x690/0x690
[  214.768785]  ndisc_alloc_skb+0x144/0x340
[  214.772850]  ndisc_send_rs+0x331/0x6e0
[  214.776747]  addrconf_rs_timer+0x314/0x690
[  214.780991]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  214.785237]  call_timer_fn+0x272/0x920
[  214.789125]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  214.793363]  ? process_timeout+0x40/0x40
[  214.797429]  ? __run_timers+0x7da/0xc70
[  214.801403]  ? _raw_spin_unlock_irq+0x27/0x80
[  214.805898]  ? _raw_spin_unlock_irq+0x27/0x80
[  214.810389]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  214.814643]  ? lockdep_hardirqs_on+0x296/0x5b0
[  214.819234]  ? trace_hardirqs_on+0xbd/0x310
[  214.823553]  ? kasan_check_read+0x11/0x20
[  214.827696]  ? __run_timers+0x7da/0xc70
[  214.831679]  ? trace_hardirqs_off_caller+0x310/0x310
[  214.836785]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  214.841027]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  214.845258]  __run_timers+0x7e5/0xc70
[  214.849073]  ? timer_fixup_init+0x70/0x70
[  214.853220]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  214.858238]  ? zap_class+0x640/0x640
[  214.861958]  ? enqueue_hrtimer+0x1a5/0x560
[  214.866195]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  214.871435]  ? find_held_lock+0x36/0x1c0
[  214.875499]  ? zap_class+0x640/0x640
[  214.879219]  ? pvclock_read_flags+0x160/0x160
[  214.883716]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  214.889257]  ? check_preemption_disabled+0x48/0x280
[  214.894282]  ? __lock_is_held+0xb5/0x140
[  214.898347]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  214.903884]  ? check_preemption_disabled+0x48/0x280
[  214.908903]  run_timer_softirq+0x52/0xb0
[  214.912965]  ? rcu_read_lock_sched_held+0x14f/0x180
[  214.917979]  __do_softirq+0x308/0xb7e
[  214.921783]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  214.926279]  ? lock_downgrade+0x900/0x900
[  214.930434]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  214.935542]  ? pvclock_read_flags+0x160/0x160
[  214.940038]  ? lapic_next_event+0x5a/0x90
[  214.944189]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  214.949730]  ? kvm_clock_read+0x18/0x30
[  214.953702]  ? kvm_sched_clock_read+0x9/0x20
[  214.958113]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  214.963670]  ? check_preemption_disabled+0x48/0x280
[  214.968701]  irq_exit+0x17f/0x1c0
[  214.972156]  smp_apic_timer_interrupt+0x1cb/0x760
[  214.977003]  ? smp_reschedule_interrupt+0x109/0x650
[  214.982022]  ? smp_call_function_single_interrupt+0x650/0x650
[  214.987905]  ? interrupt_entry+0xb5/0xc0
[  214.991966]  ? trace_hardirqs_off_caller+0xbb/0x310
[  214.996982]  ? trace_hardirqs_off_caller+0xbb/0x310
[  215.001997]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  215.006857]  ? trace_hardirqs_on_caller+0x310/0x310
[  215.011914]  ? trace_hardirqs_on_caller+0x310/0x310
[  215.016962]  ? task_prio+0x50/0x50
[  215.020504]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  215.026041]  ? check_preemption_disabled+0x48/0x280
[  215.031076]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  215.035931]  apic_timer_interrupt+0xf/0x20
[  215.040160]  </IRQ>
[  215.042397] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  215.047355] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  215.066283] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  215.073998] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  215.081265] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  215.088529] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  215.095791] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  215.103057] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  215.110358]  skb_clone+0x1bb/0x500
[  215.113899]  ? skb_split+0x11e0/0x11e0
[  215.117787]  ? preempt_notifier_register+0x200/0x200
[  215.122889]  ? __switch_to_asm+0x34/0x70
[  215.126950]  ? __switch_to_asm+0x34/0x70
[  215.131009]  ? __switch_to_asm+0x40/0x70
[  215.135068]  ? __switch_to_asm+0x34/0x70
[  215.139123]  ? __switch_to_asm+0x40/0x70
[  215.143183]  ? __switch_to_asm+0x40/0x70
[  215.147241]  ? __switch_to_asm+0x34/0x70
[  215.151313]  ? __switch_to_asm+0x34/0x70
[  215.155371]  ? __switch_to_asm+0x40/0x70
[  215.159425]  ? __switch_to_asm+0x34/0x70
[  215.163492]  bpf_clone_redirect+0xb9/0x490
[  215.167736]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  215.172757]  ? __sched_text_start+0x8/0x8
[  215.176907]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  215.181490]  ? retint_kernel+0x2d/0x2d
[  215.185376]  ? trace_hardirqs_on_caller+0xc0/0x310
[  215.190324]  ? find_held_lock+0x36/0x1c0
[  215.194397]  ? lock_acquire+0x1ed/0x520
[  215.198371]  ? bpf_test_run+0x3cb/0x780
[  215.202345]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  215.207885]  ? check_preemption_disabled+0x48/0x280
[  215.212905]  ? kasan_check_read+0x11/0x20
[  215.217067]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  215.222344]  ? rcu_softirq_qs+0x20/0x20
[  215.226317]  ? preempt_schedule+0x4d/0x60
[  215.230462]  ? ___preempt_schedule+0x16/0x18
[  215.234894]  ? bpf_test_run+0x25d/0x780
[  215.238878]  ? netlink_diag_dump+0x2a0/0x2a0
[  215.243290]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  215.248827]  ? bpf_test_init.isra.10+0x70/0x100
[  215.253504]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  215.258270]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  215.263124]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  215.268679]  ? fput+0x130/0x1a0
[  215.271964]  ? __bpf_prog_get+0x9b/0x290
[  215.276029]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  215.280876]  ? bpf_prog_test_run+0x130/0x1a0
[  215.285285]  ? __x64_sys_bpf+0x3db/0x520
[  215.289344]  ? bpf_prog_get+0x20/0x20
[  215.293163]  ? do_syscall_64+0x1b9/0x820
[  215.297225]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  215.302588]  ? syscall_return_slowpath+0x5e0/0x5e0
[  215.307517]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  215.312372]  ? trace_hardirqs_on_caller+0x310/0x310
[  215.317390]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  215.322437]  ? prepare_exit_to_usermode+0x291/0x3b0
[  215.327462]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  215.332323]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  215.337701] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  215.337706] warn_alloc_show_mem: 1 callbacks suppressed
[  215.337712] Mem-Info:
[  215.344724] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  215.350088] active_anon:57128 inactive_anon:971 isolated_anon:0
[  215.350088]  active_file:40 inactive_file:20 isolated_file:0
[  215.350088]  unevictable:0 dirty:11 writeback:0 unstable:0
[  215.350088]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  215.350088]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  215.350088]  free:13615 free_pcp:64 free_cma:0
[  215.352457] Call Trace:
[  215.361843] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  215.394774]  <IRQ>
[  215.397340] 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
[  215.425264]  dump_stack+0x244/0x39d
[  215.427383] lowmem_reserve[]: 0 2818 6321 6321
[  215.453486]  ? dump_stack_print_info.cold.1+0x20/0x20
[  215.457102] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  215.461693]  warn_alloc.cold.116+0xb7/0x1bd
[  215.466850] lowmem_reserve[]: 0 0 3503 3503
[  215.494338]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  215.498641] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  215.502957]  ? lock_downgrade+0x900/0x900
[  215.507774] lowmem_reserve[]: 0 0 0 0
[  215.536917]  ? trace_hardirqs_off+0xb8/0x310
[  215.541044] 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
[  215.544859]  ? trace_hardirqs_off+0xb8/0x310
[  215.549249] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  215.562772]  __alloc_pages_slowpath+0x2651/0x2de0
[  215.567166] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  215.582262]  ? warn_alloc+0x120/0x120
[  215.587066] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  215.602569]  ? print_usage_bug+0xc0/0xc0
[  215.606357] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  215.615185]  ? warn_alloc+0x120/0x120
[  215.619228] 5171 total pagecache pages
[  215.627795]  ? warn_alloc+0x120/0x120
[  215.631579] 0 pages in swap cache
[  215.635456]  ? print_usage_bug+0xc0/0xc0
[  215.639239] Swap cache stats: add 0, delete 0, find 0/0
[  215.642694]  ? kvm_clock_read+0x18/0x30
[  215.646735] Free swap  = 0kB
[  215.652091]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  215.656062] Total swap = 0kB
[  215.659069]  ? print_usage_bug+0xc0/0xc0
[  215.664071] 1965979 pages RAM
[  215.667085]  ? __lock_acquire+0x62f/0x4c20
[  215.671126] 0 pages HighMem/MovableOnly
[  215.674233]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  215.678450] 342854 pages reserved
[  215.682417]  ? should_fail+0x22d/0xd01
[  215.687926] 0 pages cma reserved
[  215.688026] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  215.691387]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  215.691404]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  215.691418]  ? __lock_acquire+0x62f/0x4c20
[  215.691436]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  215.691453]  ? __lock_acquire+0x62f/0x4c20
[  215.695405] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  215.698690]  ? should_fail+0x22d/0xd01
[  215.705162] syz-executor2 cpuset=syz2 mems_allowed=0
[  215.710431]  ? rcu_irq_exit+0x1a2/0x390
[  215.752672]  ? mark_held_locks+0x130/0x130
[  215.756912]  ? mark_held_locks+0x130/0x130
[  215.761157]  ? mark_held_locks+0xc7/0x130
[  215.765310]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  215.770323]  ? zap_class+0x640/0x640
[  215.774041]  ? print_usage_bug+0xc0/0xc0
[  215.778108]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  215.783656]  ? check_preemption_disabled+0x48/0x280
[  215.788689]  ? __lock_is_held+0xb5/0x140
[  215.792764]  __alloc_pages_nodemask+0xad8/0xea0
[  215.797431]  ? zap_class+0x640/0x640
[  215.801153]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  215.806185]  ? find_held_lock+0x36/0x1c0
[  215.810300]  ? ____cache_alloc_node+0x1c7/0x1e0
[  215.814967]  ? lock_downgrade+0x900/0x900
[  215.819289]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  215.824861]  cache_grow_begin+0xa5/0x8c0
[  215.828935]  ? do_raw_spin_unlock+0xa7/0x330
[  215.833351]  fallback_alloc+0x204/0x2e0
[  215.837334]  ____cache_alloc_node+0x1c7/0x1e0
[  215.841835]  kmem_cache_alloc_node+0xe3/0x730
[  215.846330]  ? ipv6_get_ifaddr+0x42e/0x620
[  215.850578]  __alloc_skb+0x119/0x770
[  215.854320]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  215.859613]  ? netdev_alloc_frag+0x1f0/0x1f0
[  215.864024]  ? lock_downgrade+0x900/0x900
[  215.868195]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  215.873736]  ? refcount_sub_and_test_checked+0x203/0x310
[  215.879188]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  215.884661]  ? addrconf_rs_timer+0x690/0x690
[  215.889140]  ndisc_alloc_skb+0x144/0x340
[  215.893212]  ndisc_send_rs+0x331/0x6e0
[  215.897104]  addrconf_rs_timer+0x314/0x690
[  215.901343]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  215.905589]  call_timer_fn+0x272/0x920
[  215.909473]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  215.913724]  ? process_timeout+0x40/0x40
[  215.917797]  ? mark_held_locks+0xc7/0x130
[  215.921946]  ? _raw_spin_unlock_irq+0x27/0x80
[  215.926437]  ? _raw_spin_unlock_irq+0x27/0x80
[  215.930932]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  215.935181]  ? lockdep_hardirqs_on+0x296/0x5b0
[  215.939782]  ? trace_hardirqs_on+0xbd/0x310
[  215.944101]  ? kasan_check_read+0x11/0x20
[  215.948257]  ? __run_timers+0x7da/0xc70
[  215.952230]  ? trace_hardirqs_off_caller+0x310/0x310
[  215.957335]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  215.961575]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  215.965808]  __run_timers+0x7e5/0xc70
[  215.969641]  ? timer_fixup_init+0x70/0x70
[  215.974083]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  215.979099]  ? zap_class+0x640/0x640
[  215.982820]  ? print_usage_bug+0xc0/0xc0
[  215.986883]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  215.992081]  ? find_held_lock+0x36/0x1c0
[  215.996145]  ? zap_class+0x640/0x640
[  215.999867]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  216.005403]  ? check_preemption_disabled+0x48/0x280
[  216.010458]  ? __lock_is_held+0xb5/0x140
[  216.014533]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  216.020067]  ? check_preemption_disabled+0x48/0x280
[  216.025111]  run_timer_softirq+0x52/0xb0
[  216.029175]  ? rcu_read_lock_sched_held+0x14f/0x180
[  216.034222]  __do_softirq+0x308/0xb7e
[  216.038039]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  216.042532]  ? lock_downgrade+0x900/0x900
[  216.046713]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  216.051825]  ? pvclock_read_flags+0x160/0x160
[  216.056325]  ? lapic_next_event+0x5a/0x90
[  216.060473]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  216.066018]  ? kvm_clock_read+0x18/0x30
[  216.069991]  ? kvm_sched_clock_read+0x9/0x20
[  216.074422]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  216.079963]  ? check_preemption_disabled+0x48/0x280
[  216.084987]  irq_exit+0x17f/0x1c0
[  216.088441]  smp_apic_timer_interrupt+0x1cb/0x760
[  216.093285]  ? smp_reschedule_interrupt+0x109/0x650
[  216.098301]  ? smp_call_function_single_interrupt+0x650/0x650
[  216.104184]  ? interrupt_entry+0xb5/0xc0
[  216.108245]  ? trace_hardirqs_off_caller+0xbb/0x310
[  216.113259]  ? trace_hardirqs_off_caller+0xbb/0x310
[  216.118275]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  216.123116]  ? trace_hardirqs_on_caller+0x310/0x310
[  216.128152]  ? trace_hardirqs_on_caller+0x310/0x310
[  216.133169]  ? task_prio+0x50/0x50
[  216.136714]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  216.142250]  ? check_preemption_disabled+0x48/0x280
[  216.147271]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  216.152119]  apic_timer_interrupt+0xf/0x20
[  216.156352]  </IRQ>
[  216.158603] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  216.163830] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  216.182727] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  216.190433] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  216.197700] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  216.204974] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  216.212251] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  216.219516] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  216.226815]  retint_kernel+0x1b/0x2d
[  216.230530] RIP: 0010:dump_stack+0x358/0x39d
[  216.234939] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  216.253839] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  216.261541] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  216.268804] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  216.276070] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  216.283335] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  216.290599] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  216.297886]  ? dump_stack+0x34f/0x39d
[  216.301716]  ? dump_stack_print_info.cold.1+0x20/0x20
[  216.306905]  ? mark_held_locks+0x130/0x130
[  216.311155]  ? mark_held_locks+0x130/0x130
[  216.315395]  dump_header+0x27b/0xf72
[  216.319118]  ? pagefault_out_of_memory+0x197/0x197
[  216.324056]  ? __lock_acquire+0x62f/0x4c20
[  216.328295]  ? print_usage_bug+0xc0/0xc0
[  216.332359]  ? zap_class+0x640/0x640
[  216.336073]  ? print_usage_bug+0xc0/0xc0
[  216.340130]  ? print_usage_bug+0xc0/0xc0
[  216.344230]  ? print_usage_bug+0xc0/0xc0
[  216.348299]  ? find_held_lock+0x36/0x1c0
[  216.352369]  ? mark_held_locks+0xc7/0x130
[  216.356519]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  216.361620]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  216.366734]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  216.371345]  ? trace_hardirqs_on+0xbd/0x310
[  216.375681]  ? kasan_check_read+0x11/0x20
[  216.379827]  ? ___ratelimit+0x3b4/0x672
[  216.383804]  ? trace_hardirqs_off_caller+0x310/0x310
[  216.388906]  ? trace_hardirqs_on+0x310/0x310
[  216.393316]  ? lock_downgrade+0x900/0x900
[  216.397473]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  216.402577]  ? ___ratelimit+0x3b9/0x672
[  216.406551]  ? idr_get_free+0xf70/0xf70
[  216.410527]  ? kasan_check_read+0x11/0x20
[  216.414677]  ? do_raw_spin_unlock+0xa7/0x330
[  216.419091]  oom_kill_process.cold.27+0x10/0x903
[  216.423845]  ? zap_class+0x640/0x640
[  216.427562]  ? _raw_spin_unlock+0x2c/0x50
[  216.431710]  ? oom_badness+0xe6/0xaa0
[  216.435510]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  216.440437]  ? kasan_check_read+0x11/0x20
[  216.444579]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  216.449853]  ? oom_evaluate_task+0x540/0x540
[  216.454267]  ? find_held_lock+0x36/0x1c0
[  216.458351]  ? out_of_memory+0x974/0x1430
[  216.462498]  ? lock_downgrade+0x900/0x900
[  216.466648]  ? check_preemption_disabled+0x48/0x280
[  216.471668]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  216.476595]  ? kasan_check_read+0x11/0x20
[  216.480747]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  216.486024]  ? rcu_softirq_qs+0x20/0x20
[  216.490018]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  216.495548]  ? oom_evaluate_task+0x302/0x540
[  216.499958]  out_of_memory+0xa84/0x1430
[  216.503941]  ? oom_killer_disable+0x3a0/0x3a0
[  216.508434]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  216.513364]  ? __ww_mutex_check_waiters+0x160/0x160
[  216.518431]  __alloc_pages_slowpath+0x232c/0x2de0
[  216.523306]  ? warn_alloc+0x120/0x120
[  216.527108]  ? mark_held_locks+0x130/0x130
[  216.531347]  ? find_get_entry+0xaae/0x1120
[  216.535590]  ? filemap_map_pages+0x1a20/0x1a20
[  216.540181]  ? zap_class+0x640/0x640
[  216.543898]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  216.549435]  ? check_preemption_disabled+0x48/0x280
[  216.554455]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  216.559993]  ? should_fail+0x22d/0xd01
[  216.563883]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  216.569007]  ? zap_class+0x640/0x640
[  216.572760]  ? __lock_is_held+0xb5/0x140
[  216.576828]  ? mark_held_locks+0x130/0x130
[  216.581066]  ? lock_release+0xa00/0xa00
[  216.585068]  ? perf_trace_sched_process_exec+0x860/0x860
[  216.590531]  ? xa_load+0x2ba/0x460
[  216.594072]  ? lock_downgrade+0x900/0x900
[  216.598239]  ? __might_sleep+0x95/0x190
[  216.602216]  __alloc_pages_nodemask+0xad8/0xea0
[  216.606894]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  216.611910]  ? __page_cache_alloc+0x191/0x5c0
[  216.616398]  ? xa_load+0x2e1/0x460
[  216.619949]  ? xa_clear_mark+0x40/0x40
[  216.623993]  ? zap_class+0x640/0x640
[  216.627721]  ? zap_class+0x640/0x640
[  216.631447]  ? zap_class+0x640/0x640
[  216.635162]  ? __do_page_cache_readahead+0x663/0x810
[  216.640266]  ? find_held_lock+0x36/0x1c0
[  216.644327]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  216.649866]  alloc_pages_current+0x173/0x350
[  216.654309]  __page_cache_alloc+0x38c/0x5c0
[  216.658676]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  216.663603]  ? kasan_check_read+0x11/0x20
[  216.667769]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  216.673046]  ? generic_perform_write+0x6a0/0x6a0
[  216.677806]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  216.683362]  ? check_preemption_disabled+0x48/0x280
[  216.688382]  filemap_fault+0x1595/0x25f0
[  216.692490]  ? __lock_page_or_retry+0xa00/0xa00
[  216.697167]  ? mark_held_locks+0x130/0x130
[  216.701413]  ? filemap_map_pages+0xd6b/0x1a20
[  216.705909]  ? lock_downgrade+0x900/0x900
[  216.710055]  ? check_preemption_disabled+0x48/0x280
[  216.715076]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  216.720004]  ? kasan_check_read+0x11/0x20
[  216.724181]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  216.729455]  ? rcu_softirq_qs+0x20/0x20
[  216.733443]  ? filemap_map_pages+0xd92/0x1a20
[  216.737953]  ? find_get_entries_tag+0x1400/0x1400
[  216.742816]  ? debug_object_destroy+0x2b0/0x2b0
[  216.747490]  ? lock_pi_update_atomic+0x150/0x150
[  216.752731]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  216.758295]  ? lock_acquire+0x1ed/0x520
[  216.762270]  ? ext4_filemap_fault+0x7a/0xad
[  216.766595]  ? lock_release+0xa00/0xa00
[  216.770574]  ? perf_trace_sched_process_exec+0x860/0x860
[  216.776040]  ? print_usage_bug+0xc0/0xc0
[  216.780104]  ? print_usage_bug+0xc0/0xc0
[  216.784175]  ? down_read+0x8d/0x120
[  216.787802]  ? ext4_filemap_fault+0x7a/0xad
[  216.792139]  ? __down_interruptible+0x700/0x700
[  216.796819]  ext4_filemap_fault+0x82/0xad
[  216.800967]  __do_fault+0x100/0x6b0
[  216.804598]  ? pmd_devmap_trans_unstable+0x220/0x220
[  216.809712]  ? mark_held_locks+0x130/0x130
[  216.813949]  ? mark_held_locks+0x130/0x130
[  216.818182]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  216.822946]  ? retint_kernel+0x2d/0x2d
[  216.826837]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  216.832380]  __handle_mm_fault+0x3ea0/0x5be0
[  216.836818]  ? perf_trace_lock+0x7a0/0x7a0
[  216.841077]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  216.845926]  ? __switch_to_asm+0x34/0x70
[  216.849989]  ? __switch_to_asm+0x34/0x70
[  216.854063]  ? zap_class+0x640/0x640
[  216.857778]  ? zap_class+0x640/0x640
[  216.861487]  ? __x64_sys_futex+0x53e/0x6a0
[  216.865726]  ? find_held_lock+0x36/0x1c0
[  216.869794]  ? handle_mm_fault+0x42a/0xc70
[  216.874036]  ? lock_downgrade+0x900/0x900
[  216.878180]  ? check_preemption_disabled+0x48/0x280
[  216.883195]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  216.888118]  ? kasan_check_read+0x11/0x20
[  216.892266]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  216.897540]  ? rcu_softirq_qs+0x20/0x20
[  216.901509]  ? trace_hardirqs_off_caller+0x310/0x310
[  216.906608]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  216.912156]  ? check_preemption_disabled+0x48/0x280
[  216.917193]  handle_mm_fault+0x54f/0xc70
[  216.921257]  ? __handle_mm_fault+0x5be0/0x5be0
[  216.925841]  ? find_vma+0x34/0x190
[  216.929386]  __do_page_fault+0x5e8/0xe60
[  216.933447]  ? trace_hardirqs_off+0xb8/0x310
[  216.937879]  do_page_fault+0xf2/0x7e0
[  216.941688]  ? vmalloc_sync_all+0x30/0x30
[  216.945900]  ? error_entry+0x70/0xd0
[  216.949614]  ? trace_hardirqs_off_caller+0xbb/0x310
[  216.954655]  ? trace_hardirqs_on_caller+0xc0/0x310
[  216.959584]  ? syscall_return_slowpath+0x5e0/0x5e0
[  216.964511]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  216.969350]  ? trace_hardirqs_on_caller+0x310/0x310
[  216.974366]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  216.979822]  ? prepare_exit_to_usermode+0x291/0x3b0
[  216.984850]  ? page_fault+0x8/0x30
[  216.988395]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  216.993242]  ? page_fault+0x8/0x30
[  216.996782]  page_fault+0x1e/0x30
[  217.000233] RIP: 0033:0x4290d7
[  217.003434] Code: Bad RIP value.
[  217.006792] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  217.012153] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  217.019416] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  217.026688] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  217.033955] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  217.041216] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  217.048504] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  217.048568] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  217.055777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  217.055782] Call Trace:
[  217.055788]  <IRQ>
[  217.055805]  dump_stack+0x244/0x39d
[  217.055825]  ? dump_stack_print_info.cold.1+0x20/0x20
[  217.062382] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  217.071664]  warn_alloc.cold.116+0xb7/0x1bd
[  217.074212] syz-fuzzer cpuset=/ mems_allowed=0
[  217.076397]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  217.109117]  ? lock_downgrade+0x900/0x900
[  217.113284]  ? trace_hardirqs_off+0xb8/0x310
[  217.117702]  ? trace_hardirqs_off+0xb8/0x310
[  217.122120]  __alloc_pages_slowpath+0x2651/0x2de0
[  217.126988]  ? warn_alloc+0x120/0x120
[  217.130788]  ? print_usage_bug+0xc0/0xc0
[  217.134854]  ? warn_alloc+0x120/0x120
[  217.138670]  ? warn_alloc+0x120/0x120
[  217.142477]  ? print_usage_bug+0xc0/0xc0
[  217.146543]  ? print_usage_bug+0xc0/0xc0
[  217.150608]  ? __lock_acquire+0x62f/0x4c20
[  217.154866]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  217.160403]  ? should_fail+0x22d/0xd01
[  217.164295]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  217.169397]  ? __lock_acquire+0x62f/0x4c20
[  217.173642]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  217.178797]  ? __lock_acquire+0x62f/0x4c20
[  217.183043]  ? should_fail+0x22d/0xd01
[  217.186928]  ? find_held_lock+0x36/0x1c0
[  217.191013]  ? mark_held_locks+0x130/0x130
[  217.195254]  ? mark_held_locks+0x130/0x130
[  217.199499]  ? zap_class+0x640/0x640
[  217.203210]  ? zap_class+0x640/0x640
[  217.206929]  ? print_usage_bug+0xc0/0xc0
[  217.210988]  ? do_raw_spin_unlock+0xa7/0x330
[  217.215396]  ? zap_class+0x640/0x640
[  217.219127]  ? print_usage_bug+0xc0/0xc0
[  217.223187]  ? wq_watchdog_touch+0x9c/0xfe
[  217.227422]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  217.232962]  ? check_preemption_disabled+0x48/0x280
[  217.238016]  ? __lock_is_held+0xb5/0x140
[  217.242083]  __alloc_pages_nodemask+0xad8/0xea0
[  217.246753]  ? zap_class+0x640/0x640
[  217.250470]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  217.255498]  ? find_held_lock+0x36/0x1c0
[  217.259570]  ? ____cache_alloc_node+0x1c7/0x1e0
[  217.264241]  ? lock_downgrade+0x900/0x900
[  217.268394]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  217.273933]  cache_grow_begin+0xa5/0x8c0
[  217.277994]  ? do_raw_spin_unlock+0xa7/0x330
[  217.282412]  fallback_alloc+0x204/0x2e0
[  217.286394]  ____cache_alloc_node+0x1c7/0x1e0
[  217.290891]  kmem_cache_alloc_node+0xe3/0x730
[  217.295400]  ? ipv6_get_ifaddr+0x42e/0x620
[  217.299661]  __alloc_skb+0x119/0x770
[  217.303372]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  217.308666]  ? netdev_alloc_frag+0x1f0/0x1f0
[  217.313076]  ? lock_downgrade+0x900/0x900
[  217.317235]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  217.322787]  ? refcount_sub_and_test_checked+0x203/0x310
[  217.328245]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  217.333713]  ? addrconf_rs_timer+0x690/0x690
[  217.338134]  ndisc_alloc_skb+0x144/0x340
[  217.342196]  ndisc_send_rs+0x331/0x6e0
[  217.346103]  addrconf_rs_timer+0x314/0x690
[  217.350340]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  217.354584]  call_timer_fn+0x272/0x920
[  217.358473]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  217.362739]  ? process_timeout+0x40/0x40
[  217.366822]  ? __run_timers+0x7da/0xc70
[  217.370796]  ? _raw_spin_unlock_irq+0x27/0x80
[  217.375292]  ? _raw_spin_unlock_irq+0x27/0x80
[  217.379783]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  217.384035]  ? lockdep_hardirqs_on+0x296/0x5b0
[  217.388618]  ? trace_hardirqs_on+0xbd/0x310
[  217.392952]  ? kasan_check_read+0x11/0x20
[  217.397095]  ? __run_timers+0x7da/0xc70
[  217.401089]  ? trace_hardirqs_off_caller+0x310/0x310
[  217.406211]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  217.410448]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  217.414692]  __run_timers+0x7e5/0xc70
[  217.418505]  ? timer_fixup_init+0x70/0x70
[  217.422673]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  217.427692]  ? zap_class+0x640/0x640
[  217.431421]  ? enqueue_hrtimer+0x1a5/0x560
[  217.435692]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  217.440886]  ? find_held_lock+0x36/0x1c0
[  217.444955]  ? zap_class+0x640/0x640
[  217.448693]  ? pvclock_read_flags+0x160/0x160
[  217.453192]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  217.458732]  ? check_preemption_disabled+0x48/0x280
[  217.463756]  ? __lock_is_held+0xb5/0x140
[  217.467817]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  217.473354]  ? check_preemption_disabled+0x48/0x280
[  217.478377]  run_timer_softirq+0x52/0xb0
[  217.482439]  ? rcu_read_lock_sched_held+0x14f/0x180
[  217.487451]  __do_softirq+0x308/0xb7e
[  217.491256]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  217.495762]  ? lock_downgrade+0x900/0x900
[  217.499962]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  217.505070]  ? pvclock_read_flags+0x160/0x160
[  217.509581]  ? lapic_next_event+0x5a/0x90
[  217.513730]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  217.519268]  ? kvm_clock_read+0x18/0x30
[  217.523279]  ? kvm_sched_clock_read+0x9/0x20
[  217.527705]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  217.533242]  ? check_preemption_disabled+0x48/0x280
[  217.538269]  irq_exit+0x17f/0x1c0
[  217.541727]  smp_apic_timer_interrupt+0x1cb/0x760
[  217.546571]  ? smp_reschedule_interrupt+0x109/0x650
[  217.551587]  ? smp_call_function_single_interrupt+0x650/0x650
[  217.557469]  ? interrupt_entry+0xb5/0xc0
[  217.561532]  ? trace_hardirqs_off_caller+0xbb/0x310
[  217.566549]  ? trace_hardirqs_off_caller+0xbb/0x310
[  217.571584]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  217.576430]  ? trace_hardirqs_on_caller+0x310/0x310
[  217.581449]  ? trace_hardirqs_on_caller+0x310/0x310
[  217.586460]  ? task_prio+0x50/0x50
[  217.589999]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  217.595539]  ? check_preemption_disabled+0x48/0x280
[  217.600560]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  217.605427]  apic_timer_interrupt+0xf/0x20
[  217.609657]  </IRQ>
[  217.611901] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  217.616831] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  217.635736] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  217.643440] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  217.650718] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  217.657981] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  217.665243] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  217.672507] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  217.679811]  skb_clone+0x1bb/0x500
[  217.683383]  ? skb_split+0x11e0/0x11e0
[  217.687272]  ? preempt_notifier_register+0x200/0x200
[  217.692372]  ? __switch_to_asm+0x34/0x70
[  217.696430]  ? __switch_to_asm+0x34/0x70
[  217.700484]  ? __switch_to_asm+0x40/0x70
[  217.704555]  ? __switch_to_asm+0x34/0x70
[  217.708612]  ? __switch_to_asm+0x40/0x70
[  217.712683]  ? __switch_to_asm+0x40/0x70
[  217.716760]  ? __switch_to_asm+0x34/0x70
[  217.720817]  ? __switch_to_asm+0x34/0x70
[  217.724875]  ? __switch_to_asm+0x40/0x70
[  217.728994]  ? __switch_to_asm+0x34/0x70
[  217.733099]  bpf_clone_redirect+0xb9/0x490
[  217.737336]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  217.742351]  ? __sched_text_start+0x8/0x8
[  217.746500]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  217.751102]  ? retint_kernel+0x2d/0x2d
[  217.754986]  ? trace_hardirqs_on_caller+0xc0/0x310
[  217.759924]  ? find_held_lock+0x36/0x1c0
[  217.763990]  ? lock_acquire+0x1ed/0x520
[  217.767969]  ? bpf_test_run+0x3cb/0x780
[  217.771945]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  217.777482]  ? check_preemption_disabled+0x48/0x280
[  217.782502]  ? kasan_check_read+0x11/0x20
[  217.786665]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  217.791943]  ? rcu_softirq_qs+0x20/0x20
[  217.795918]  ? preempt_schedule+0x4d/0x60
[  217.800077]  ? ___preempt_schedule+0x16/0x18
[  217.804493]  ? bpf_test_run+0x25d/0x780
[  217.808498]  ? netlink_diag_dump+0x2a0/0x2a0
[  217.812923]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  217.818461]  ? bpf_test_init.isra.10+0x70/0x100
[  217.823147]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  217.827910]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  217.832749]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  217.838280]  ? fput+0x130/0x1a0
[  217.841562]  ? __bpf_prog_get+0x9b/0x290
[  217.845632]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  217.850491]  ? bpf_prog_test_run+0x130/0x1a0
[  217.854905]  ? __x64_sys_bpf+0x3db/0x520
[  217.858965]  ? bpf_prog_get+0x20/0x20
[  217.862787]  ? do_syscall_64+0x1b9/0x820
[  217.866850]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  217.872214]  ? syscall_return_slowpath+0x5e0/0x5e0
[  217.877141]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  217.881989]  ? trace_hardirqs_on_caller+0x310/0x310
[  217.887006]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  217.892022]  ? prepare_exit_to_usermode+0x291/0x3b0
[  217.897039]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  217.901887]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  217.907270] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  217.907275] warn_alloc_show_mem: 1 callbacks suppressed
[  217.907282] Mem-Info:
[  217.914286] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  217.919666] active_anon:57128 inactive_anon:971 isolated_anon:0
[  217.919666]  active_file:40 inactive_file:20 isolated_file:0
[  217.919666]  unevictable:0 dirty:11 writeback:0 unstable:0
[  217.919666]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  217.919666]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  217.919666]  free:13615 free_pcp:64 free_cma:0
[  217.922033] Call Trace:
[  217.931435] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  217.964364]  <IRQ>
[  217.966931] 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
[  217.994877]  dump_stack+0x244/0x39d
[  217.996998] lowmem_reserve[]: 0 2818 6321 6321
[  218.023106]  ? dump_stack_print_info.cold.1+0x20/0x20
[  218.026709] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  218.031290]  warn_alloc.cold.116+0xb7/0x1bd
[  218.036444] lowmem_reserve[]: 0 0 3503 3503
[  218.063940]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  218.068236] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  218.072566]  ? lock_downgrade+0x900/0x900
[  218.077380] lowmem_reserve[]: 0 0 0 0
[  218.106526]  ? trace_hardirqs_off+0xb8/0x310
[  218.110655] 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
[  218.114455]  ? trace_hardirqs_off+0xb8/0x310
[  218.118837] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  218.132372]  __alloc_pages_slowpath+0x2651/0x2de0
[  218.136752] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  218.151856]  ? warn_alloc+0x120/0x120
[  218.156660] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  218.172175]  ? print_usage_bug+0xc0/0xc0
[  218.175952] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  218.184772]  ? warn_alloc+0x120/0x120
[  218.188814] 5171 total pagecache pages
[  218.197378]  ? warn_alloc+0x120/0x120
[  218.201155] 0 pages in swap cache
[  218.205029]  ? print_usage_bug+0xc0/0xc0
[  218.208808] Swap cache stats: add 0, delete 0, find 0/0
[  218.212247]  ? kvm_clock_read+0x18/0x30
[  218.216279] Free swap  = 0kB
[  218.221642]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  218.225594] Total swap = 0kB
[  218.228603]  ? print_usage_bug+0xc0/0xc0
[  218.233591] 1965979 pages RAM
[  218.236601]  ? __lock_acquire+0x62f/0x4c20
[  218.240643] 0 pages HighMem/MovableOnly
[  218.243743]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  218.247964] 342854 pages reserved
[  218.251930]  ? should_fail+0x22d/0xd01
[  218.257453] 0 pages cma reserved
[  218.260900]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  218.264822] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  218.268117]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  218.273454] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  218.279858]  ? __lock_acquire+0x62f/0x4c20
[  218.284939] syz-executor2 cpuset=syz2 mems_allowed=0
[  218.295414]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  218.309821]  ? __lock_acquire+0x62f/0x4c20
[  218.314055]  ? should_fail+0x22d/0xd01
[  218.317940]  ? rcu_irq_exit+0x1a2/0x390
[  218.321926]  ? mark_held_locks+0x130/0x130
[  218.326172]  ? mark_held_locks+0x130/0x130
[  218.330412]  ? mark_held_locks+0xc7/0x130
[  218.334558]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  218.339570]  ? zap_class+0x640/0x640
[  218.343283]  ? print_usage_bug+0xc0/0xc0
[  218.347344]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  218.352883]  ? check_preemption_disabled+0x48/0x280
[  218.357907]  ? __lock_is_held+0xb5/0x140
[  218.361974]  __alloc_pages_nodemask+0xad8/0xea0
[  218.366649]  ? zap_class+0x640/0x640
[  218.370386]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  218.375411]  ? find_held_lock+0x36/0x1c0
[  218.379488]  ? ____cache_alloc_node+0x1c7/0x1e0
[  218.384164]  ? lock_downgrade+0x900/0x900
[  218.388316]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  218.393861]  cache_grow_begin+0xa5/0x8c0
[  218.397920]  ? do_raw_spin_unlock+0xa7/0x330
[  218.402334]  fallback_alloc+0x204/0x2e0
[  218.406315]  ____cache_alloc_node+0x1c7/0x1e0
[  218.410829]  kmem_cache_alloc_node+0xe3/0x730
[  218.415325]  ? ipv6_get_ifaddr+0x42e/0x620
[  218.419585]  __alloc_skb+0x119/0x770
[  218.423347]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  218.428644]  ? netdev_alloc_frag+0x1f0/0x1f0
[  218.433059]  ? lock_downgrade+0x900/0x900
[  218.437228]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  218.442761]  ? refcount_sub_and_test_checked+0x203/0x310
[  218.448217]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  218.453672]  ? addrconf_rs_timer+0x690/0x690
[  218.458106]  ndisc_alloc_skb+0x144/0x340
[  218.462192]  ndisc_send_rs+0x331/0x6e0
[  218.466083]  addrconf_rs_timer+0x314/0x690
[  218.470327]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  218.474579]  call_timer_fn+0x272/0x920
[  218.478493]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  218.482745]  ? process_timeout+0x40/0x40
[  218.486815]  ? mark_held_locks+0xc7/0x130
[  218.490964]  ? _raw_spin_unlock_irq+0x27/0x80
[  218.495455]  ? _raw_spin_unlock_irq+0x27/0x80
[  218.499964]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  218.504197]  ? lockdep_hardirqs_on+0x296/0x5b0
[  218.508782]  ? trace_hardirqs_on+0xbd/0x310
[  218.513100]  ? kasan_check_read+0x11/0x20
[  218.517242]  ? __run_timers+0x7da/0xc70
[  218.521215]  ? trace_hardirqs_off_caller+0x310/0x310
[  218.526322]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  218.530564]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  218.534802]  __run_timers+0x7e5/0xc70
[  218.538613]  ? timer_fixup_init+0x70/0x70
[  218.542773]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  218.547809]  ? zap_class+0x640/0x640
[  218.551531]  ? print_usage_bug+0xc0/0xc0
[  218.555608]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  218.560809]  ? find_held_lock+0x36/0x1c0
[  218.564877]  ? zap_class+0x640/0x640
[  218.568596]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  218.574139]  ? check_preemption_disabled+0x48/0x280
[  218.579187]  ? __lock_is_held+0xb5/0x140
[  218.583250]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  218.588786]  ? check_preemption_disabled+0x48/0x280
[  218.593804]  run_timer_softirq+0x52/0xb0
[  218.597864]  ? rcu_read_lock_sched_held+0x14f/0x180
[  218.602881]  __do_softirq+0x308/0xb7e
[  218.606685]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  218.611183]  ? lock_downgrade+0x900/0x900
[  218.615334]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  218.620554]  ? pvclock_read_flags+0x160/0x160
[  218.625047]  ? lapic_next_event+0x5a/0x90
[  218.629198]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  218.634741]  ? kvm_clock_read+0x18/0x30
[  218.638719]  ? kvm_sched_clock_read+0x9/0x20
[  218.643131]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  218.648674]  ? check_preemption_disabled+0x48/0x280
[  218.653698]  irq_exit+0x17f/0x1c0
[  218.657158]  smp_apic_timer_interrupt+0x1cb/0x760
[  218.661998]  ? smp_reschedule_interrupt+0x109/0x650
[  218.667015]  ? smp_call_function_single_interrupt+0x650/0x650
[  218.672897]  ? interrupt_entry+0xb5/0xc0
[  218.676958]  ? trace_hardirqs_off_caller+0xbb/0x310
[  218.681971]  ? trace_hardirqs_off_caller+0xbb/0x310
[  218.686990]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  218.691836]  ? trace_hardirqs_on_caller+0x310/0x310
[  218.696852]  ? trace_hardirqs_on_caller+0x310/0x310
[  218.701866]  ? task_prio+0x50/0x50
[  218.705410]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  218.710959]  ? check_preemption_disabled+0x48/0x280
[  218.715997]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  218.720845]  apic_timer_interrupt+0xf/0x20
[  218.725069]  </IRQ>
[  218.727322] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  218.732513] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  218.751411] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  218.759589] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  218.766858] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  218.774122] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  218.781389] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  218.788656] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  218.795955]  retint_kernel+0x1b/0x2d
[  218.799673] RIP: 0010:dump_stack+0x358/0x39d
[  218.804094] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  218.822988] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  218.830690] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  218.837969] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  218.845235] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  218.852501] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  218.859793] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  218.867075]  ? dump_stack+0x34f/0x39d
[  218.870890]  ? dump_stack_print_info.cold.1+0x20/0x20
[  218.876082]  ? mark_held_locks+0x130/0x130
[  218.880318]  ? mark_held_locks+0x130/0x130
[  218.884558]  dump_header+0x27b/0xf72
[  218.888284]  ? pagefault_out_of_memory+0x197/0x197
[  218.893222]  ? __lock_acquire+0x62f/0x4c20
[  218.897464]  ? print_usage_bug+0xc0/0xc0
[  218.901533]  ? zap_class+0x640/0x640
[  218.905248]  ? print_usage_bug+0xc0/0xc0
[  218.909309]  ? print_usage_bug+0xc0/0xc0
[  218.913372]  ? print_usage_bug+0xc0/0xc0
[  218.917439]  ? find_held_lock+0x36/0x1c0
[  218.921509]  ? mark_held_locks+0xc7/0x130
[  218.925676]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  218.930780]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  218.935881]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  218.940470]  ? trace_hardirqs_on+0xbd/0x310
[  218.944798]  ? kasan_check_read+0x11/0x20
[  218.948953]  ? ___ratelimit+0x3b4/0x672
[  218.952929]  ? trace_hardirqs_off_caller+0x310/0x310
[  218.958033]  ? trace_hardirqs_on+0x310/0x310
[  218.962444]  ? lock_downgrade+0x900/0x900
[  218.966617]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  218.971749]  ? ___ratelimit+0x3b9/0x672
[  218.975725]  ? idr_get_free+0xf70/0xf70
[  218.979697]  ? kasan_check_read+0x11/0x20
[  218.983845]  ? do_raw_spin_unlock+0xa7/0x330
[  218.988264]  oom_kill_process.cold.27+0x10/0x903
[  218.993023]  ? zap_class+0x640/0x640
[  218.996737]  ? _raw_spin_unlock+0x2c/0x50
[  219.000887]  ? oom_badness+0xe6/0xaa0
[  219.004684]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  219.009642]  ? kasan_check_read+0x11/0x20
[  219.013805]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  219.019085]  ? oom_evaluate_task+0x540/0x540
[  219.023497]  ? find_held_lock+0x36/0x1c0
[  219.027568]  ? out_of_memory+0x974/0x1430
[  219.031714]  ? lock_downgrade+0x900/0x900
[  219.035861]  ? check_preemption_disabled+0x48/0x280
[  219.040878]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  219.045805]  ? kasan_check_read+0x11/0x20
[  219.049950]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  219.055235]  ? rcu_softirq_qs+0x20/0x20
[  219.059214]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  219.064751]  ? oom_evaluate_task+0x302/0x540
[  219.069171]  out_of_memory+0xa84/0x1430
[  219.073159]  ? oom_killer_disable+0x3a0/0x3a0
[  219.077687]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  219.082641]  ? __ww_mutex_check_waiters+0x160/0x160
[  219.087682]  __alloc_pages_slowpath+0x232c/0x2de0
[  219.092548]  ? warn_alloc+0x120/0x120
[  219.096345]  ? mark_held_locks+0x130/0x130
[  219.100586]  ? find_get_entry+0xaae/0x1120
[  219.104832]  ? filemap_map_pages+0x1a20/0x1a20
[  219.109417]  ? zap_class+0x640/0x640
[  219.113132]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  219.118673]  ? check_preemption_disabled+0x48/0x280
[  219.123692]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  219.129230]  ? should_fail+0x22d/0xd01
[  219.133119]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  219.138221]  ? zap_class+0x640/0x640
[  219.141959]  ? __lock_is_held+0xb5/0x140
[  219.146030]  ? mark_held_locks+0x130/0x130
[  219.150266]  ? lock_release+0xa00/0xa00
[  219.154238]  ? perf_trace_sched_process_exec+0x860/0x860
[  219.159738]  ? xa_load+0x2ba/0x460
[  219.163294]  ? lock_downgrade+0x900/0x900
[  219.167443]  ? __might_sleep+0x95/0x190
[  219.171423]  __alloc_pages_nodemask+0xad8/0xea0
[  219.176101]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  219.181129]  ? __page_cache_alloc+0x191/0x5c0
[  219.185646]  ? xa_load+0x2e1/0x460
[  219.189187]  ? xa_clear_mark+0x40/0x40
[  219.193078]  ? zap_class+0x640/0x640
[  219.196827]  ? zap_class+0x640/0x640
[  219.200537]  ? zap_class+0x640/0x640
[  219.204247]  ? __do_page_cache_readahead+0x663/0x810
[  219.209369]  ? find_held_lock+0x36/0x1c0
[  219.213433]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  219.218977]  alloc_pages_current+0x173/0x350
[  219.223394]  __page_cache_alloc+0x38c/0x5c0
[  219.227712]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  219.232647]  ? kasan_check_read+0x11/0x20
[  219.236795]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  219.242074]  ? generic_perform_write+0x6a0/0x6a0
[  219.246829]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  219.252370]  ? check_preemption_disabled+0x48/0x280
[  219.257392]  filemap_fault+0x1595/0x25f0
[  219.261464]  ? __lock_page_or_retry+0xa00/0xa00
[  219.266134]  ? mark_held_locks+0x130/0x130
[  219.270381]  ? filemap_map_pages+0xd6b/0x1a20
[  219.274881]  ? lock_downgrade+0x900/0x900
[  219.279030]  ? check_preemption_disabled+0x48/0x280
[  219.284048]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  219.288975]  ? kasan_check_read+0x11/0x20
[  219.293119]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  219.298400]  ? rcu_softirq_qs+0x20/0x20
[  219.302385]  ? filemap_map_pages+0xd92/0x1a20
[  219.306895]  ? find_get_entries_tag+0x1400/0x1400
[  219.311742]  ? debug_object_destroy+0x2b0/0x2b0
[  219.316419]  ? lock_pi_update_atomic+0x150/0x150
[  219.321215]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  219.326776]  ? lock_acquire+0x1ed/0x520
[  219.330750]  ? ext4_filemap_fault+0x7a/0xad
[  219.335080]  ? lock_release+0xa00/0xa00
[  219.339050]  ? perf_trace_sched_process_exec+0x860/0x860
[  219.344501]  ? print_usage_bug+0xc0/0xc0
[  219.348563]  ? print_usage_bug+0xc0/0xc0
[  219.352642]  ? down_read+0x8d/0x120
[  219.356268]  ? ext4_filemap_fault+0x7a/0xad
[  219.360596]  ? __down_interruptible+0x700/0x700
[  219.365311]  ext4_filemap_fault+0x82/0xad
[  219.369518]  __do_fault+0x100/0x6b0
[  219.373169]  ? pmd_devmap_trans_unstable+0x220/0x220
[  219.378273]  ? mark_held_locks+0x130/0x130
[  219.382506]  ? mark_held_locks+0x130/0x130
[  219.386739]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  219.391502]  ? retint_kernel+0x2d/0x2d
[  219.395387]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  219.400930]  __handle_mm_fault+0x3ea0/0x5be0
[  219.405350]  ? perf_trace_lock+0x7a0/0x7a0
[  219.409596]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  219.414449]  ? __switch_to_asm+0x34/0x70
[  219.418505]  ? __switch_to_asm+0x34/0x70
[  219.422574]  ? zap_class+0x640/0x640
[  219.426286]  ? zap_class+0x640/0x640
[  219.429996]  ? __x64_sys_futex+0x53e/0x6a0
[  219.434231]  ? find_held_lock+0x36/0x1c0
[  219.438318]  ? handle_mm_fault+0x42a/0xc70
[  219.442552]  ? lock_downgrade+0x900/0x900
[  219.446704]  ? check_preemption_disabled+0x48/0x280
[  219.451724]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  219.456676]  ? kasan_check_read+0x11/0x20
[  219.460823]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  219.466102]  ? rcu_softirq_qs+0x20/0x20
[  219.470073]  ? trace_hardirqs_off_caller+0x310/0x310
[  219.475177]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  219.480727]  ? check_preemption_disabled+0x48/0x280
[  219.485764]  handle_mm_fault+0x54f/0xc70
[  219.489829]  ? __handle_mm_fault+0x5be0/0x5be0
[  219.494414]  ? find_vma+0x34/0x190
[  219.497963]  __do_page_fault+0x5e8/0xe60
[  219.502021]  ? trace_hardirqs_off+0xb8/0x310
[  219.506441]  do_page_fault+0xf2/0x7e0
[  219.510254]  ? vmalloc_sync_all+0x30/0x30
[  219.514416]  ? error_entry+0x70/0xd0
[  219.518133]  ? trace_hardirqs_off_caller+0xbb/0x310
[  219.523154]  ? trace_hardirqs_on_caller+0xc0/0x310
[  219.528087]  ? syscall_return_slowpath+0x5e0/0x5e0
[  219.533014]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  219.537862]  ? trace_hardirqs_on_caller+0x310/0x310
[  219.542896]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  219.548351]  ? prepare_exit_to_usermode+0x291/0x3b0
[  219.553367]  ? page_fault+0x8/0x30
[  219.556906]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  219.561760]  ? page_fault+0x8/0x30
[  219.565303]  page_fault+0x1e/0x30
[  219.568756] RIP: 0033:0x4290d7
[  219.571959] Code: Bad RIP value.
[  219.575321] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  219.580681] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  219.587943] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  219.595209] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  219.602471] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  219.609737] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  219.617045] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  219.617141] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  219.624314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  219.624319] Call Trace:
[  219.624325]  <IRQ>
[  219.624343]  dump_stack+0x244/0x39d
[  219.624361]  ? dump_stack_print_info.cold.1+0x20/0x20
[  219.630932] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  219.640194]  warn_alloc.cold.116+0xb7/0x1bd
[  219.642746] syz-fuzzer cpuset=/ mems_allowed=0
[  219.644890]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  219.677588]  ? lock_downgrade+0x900/0x900
[  219.681745]  ? trace_hardirqs_off+0xb8/0x310
[  219.686156]  ? trace_hardirqs_off+0xb8/0x310
[  219.690576]  __alloc_pages_slowpath+0x2651/0x2de0
[  219.695449]  ? warn_alloc+0x120/0x120
[  219.699255]  ? print_usage_bug+0xc0/0xc0
[  219.703315]  ? warn_alloc+0x120/0x120
[  219.707136]  ? warn_alloc+0x120/0x120
[  219.710969]  ? print_usage_bug+0xc0/0xc0
[  219.715028]  ? kvm_clock_read+0x18/0x30
[  219.719016]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  219.724049]  ? print_usage_bug+0xc0/0xc0
[  219.728111]  ? __lock_acquire+0x62f/0x4c20
[  219.732351]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  219.737884]  ? should_fail+0x22d/0xd01
[  219.741770]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  219.747073]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  219.752190]  ? __lock_acquire+0x62f/0x4c20
[  219.756423]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  219.761551]  ? __lock_acquire+0x62f/0x4c20
[  219.765782]  ? should_fail+0x22d/0xd01
[  219.769668]  ? rcu_irq_exit+0x1a2/0x390
[  219.773662]  ? mark_held_locks+0x130/0x130
[  219.777916]  ? mark_held_locks+0x130/0x130
[  219.782153]  ? mark_held_locks+0xc7/0x130
[  219.786300]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  219.791313]  ? zap_class+0x640/0x640
[  219.795036]  ? print_usage_bug+0xc0/0xc0
[  219.799103]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  219.804652]  ? check_preemption_disabled+0x48/0x280
[  219.809684]  ? __lock_is_held+0xb5/0x140
[  219.813753]  __alloc_pages_nodemask+0xad8/0xea0
[  219.818437]  ? zap_class+0x640/0x640
[  219.822171]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  219.827201]  ? find_held_lock+0x36/0x1c0
[  219.831287]  ? ____cache_alloc_node+0x1c7/0x1e0
[  219.835954]  ? lock_downgrade+0x900/0x900
[  219.840121]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  219.845669]  cache_grow_begin+0xa5/0x8c0
[  219.849730]  ? do_raw_spin_unlock+0xa7/0x330
[  219.854144]  fallback_alloc+0x204/0x2e0
[  219.858137]  ____cache_alloc_node+0x1c7/0x1e0
[  219.862641]  kmem_cache_alloc_node+0xe3/0x730
[  219.867168]  ? ipv6_get_ifaddr+0x42e/0x620
[  219.871414]  __alloc_skb+0x119/0x770
[  219.875123]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  219.880403]  ? netdev_alloc_frag+0x1f0/0x1f0
[  219.884812]  ? lock_downgrade+0x900/0x900
[  219.888968]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  219.894516]  ? refcount_sub_and_test_checked+0x203/0x310
[  219.899965]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  219.905416]  ? addrconf_rs_timer+0x690/0x690
[  219.909897]  ndisc_alloc_skb+0x144/0x340
[  219.913962]  ndisc_send_rs+0x331/0x6e0
[  219.917853]  addrconf_rs_timer+0x314/0x690
[  219.922095]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  219.926363]  call_timer_fn+0x272/0x920
[  219.930252]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  219.934499]  ? process_timeout+0x40/0x40
[  219.938567]  ? __run_timers+0x7da/0xc70
[  219.942557]  ? _raw_spin_unlock_irq+0x27/0x80
[  219.947053]  ? _raw_spin_unlock_irq+0x27/0x80
[  219.951565]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  219.955801]  ? lockdep_hardirqs_on+0x296/0x5b0
[  219.960386]  ? trace_hardirqs_on+0xbd/0x310
[  219.964707]  ? kasan_check_read+0x11/0x20
[  219.968850]  ? __run_timers+0x7da/0xc70
[  219.972823]  ? trace_hardirqs_off_caller+0x310/0x310
[  219.977930]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  219.982166]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  219.986397]  __run_timers+0x7e5/0xc70
[  219.990207]  ? timer_fixup_init+0x70/0x70
[  219.994355]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  219.999368]  ? zap_class+0x640/0x640
[  220.003094]  ? enqueue_hrtimer+0x1a5/0x560
[  220.007343]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  220.012540]  ? find_held_lock+0x36/0x1c0
[  220.016616]  ? zap_class+0x640/0x640
[  220.020347]  ? pvclock_read_flags+0x160/0x160
[  220.024877]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  220.030432]  ? check_preemption_disabled+0x48/0x280
[  220.035459]  ? __lock_is_held+0xb5/0x140
[  220.039522]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  220.045057]  ? check_preemption_disabled+0x48/0x280
[  220.050076]  run_timer_softirq+0x52/0xb0
[  220.054144]  ? rcu_read_lock_sched_held+0x14f/0x180
[  220.059162]  __do_softirq+0x308/0xb7e
[  220.062967]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  220.067461]  ? lock_downgrade+0x900/0x900
[  220.071613]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  220.076746]  ? pvclock_read_flags+0x160/0x160
[  220.081246]  ? lapic_next_event+0x5a/0x90
[  220.085395]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  220.090937]  ? kvm_clock_read+0x18/0x30
[  220.094908]  ? kvm_sched_clock_read+0x9/0x20
[  220.099319]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  220.104856]  ? check_preemption_disabled+0x48/0x280
[  220.109878]  irq_exit+0x17f/0x1c0
[  220.113343]  smp_apic_timer_interrupt+0x1cb/0x760
[  220.118196]  ? smp_reschedule_interrupt+0x109/0x650
[  220.123210]  ? smp_call_function_single_interrupt+0x650/0x650
[  220.129095]  ? interrupt_entry+0xb5/0xc0
[  220.133152]  ? trace_hardirqs_off_caller+0xbb/0x310
[  220.138162]  ? trace_hardirqs_off_caller+0xbb/0x310
[  220.143176]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  220.148018]  ? trace_hardirqs_on_caller+0x310/0x310
[  220.153062]  ? trace_hardirqs_on_caller+0x310/0x310
[  220.158079]  ? task_prio+0x50/0x50
[  220.161618]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  220.167172]  ? check_preemption_disabled+0x48/0x280
[  220.172191]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  220.177055]  apic_timer_interrupt+0xf/0x20
[  220.181278]  </IRQ>
[  220.183515] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  220.188444] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  220.207338] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  220.215046] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  220.222308] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  220.229571] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  220.236834] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  220.244112] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  220.251415]  skb_clone+0x1bb/0x500
[  220.254957]  ? skb_split+0x11e0/0x11e0
[  220.258851]  ? preempt_notifier_register+0x200/0x200
[  220.263949]  ? __switch_to_asm+0x34/0x70
[  220.268008]  ? __switch_to_asm+0x34/0x70
[  220.272068]  ? __switch_to_asm+0x40/0x70
[  220.276139]  ? __switch_to_asm+0x34/0x70
[  220.280195]  ? __switch_to_asm+0x40/0x70
[  220.284256]  ? __switch_to_asm+0x40/0x70
[  220.288309]  ? __switch_to_asm+0x34/0x70
[  220.292368]  ? __switch_to_asm+0x34/0x70
[  220.296438]  ? __switch_to_asm+0x40/0x70
[  220.300491]  ? __switch_to_asm+0x34/0x70
[  220.304562]  bpf_clone_redirect+0xb9/0x490
[  220.308805]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  220.313824]  ? __sched_text_start+0x8/0x8
[  220.317975]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  220.322552]  ? retint_kernel+0x2d/0x2d
[  220.326439]  ? trace_hardirqs_on_caller+0xc0/0x310
[  220.331377]  ? find_held_lock+0x36/0x1c0
[  220.335445]  ? lock_acquire+0x1ed/0x520
[  220.339432]  ? bpf_test_run+0x3cb/0x780
[  220.343404]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  220.348942]  ? check_preemption_disabled+0x48/0x280
[  220.353961]  ? kasan_check_read+0x11/0x20
[  220.358111]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  220.363384]  ? rcu_softirq_qs+0x20/0x20
[  220.367385]  ? preempt_schedule+0x4d/0x60
[  220.371536]  ? ___preempt_schedule+0x16/0x18
[  220.375951]  ? bpf_test_run+0x25d/0x780
[  220.379935]  ? netlink_diag_dump+0x2a0/0x2a0
[  220.384345]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  220.389896]  ? bpf_test_init.isra.10+0x70/0x100
[  220.394575]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  220.399340]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  220.404179]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  220.409713]  ? fput+0x130/0x1a0
[  220.412995]  ? __bpf_prog_get+0x9b/0x290
[  220.417077]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  220.421918]  ? bpf_prog_test_run+0x130/0x1a0
[  220.426334]  ? __x64_sys_bpf+0x3db/0x520
[  220.430394]  ? bpf_prog_get+0x20/0x20
[  220.434226]  ? do_syscall_64+0x1b9/0x820
[  220.438283]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  220.443657]  ? syscall_return_slowpath+0x5e0/0x5e0
[  220.448582]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  220.453448]  ? trace_hardirqs_on_caller+0x310/0x310
[  220.458462]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  220.463482]  ? prepare_exit_to_usermode+0x291/0x3b0
[  220.468505]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  220.473352]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  220.478749] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  220.478754] warn_alloc_show_mem: 1 callbacks suppressed
[  220.478761] Mem-Info:
[  220.485767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  220.491132] active_anon:57128 inactive_anon:971 isolated_anon:0
[  220.491132]  active_file:40 inactive_file:20 isolated_file:0
[  220.491132]  unevictable:0 dirty:11 writeback:0 unstable:0
[  220.491132]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  220.491132]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  220.491132]  free:13615 free_pcp:64 free_cma:0
[  220.493506] Call Trace:
[  220.502895] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  220.535828]  <IRQ>
[  220.538396] 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
[  220.566323]  dump_stack+0x244/0x39d
[  220.568446] lowmem_reserve[]: 0 2818 6321 6321
[  220.594550]  ? dump_stack_print_info.cold.1+0x20/0x20
[  220.598164] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  220.602769]  warn_alloc.cold.116+0xb7/0x1bd
[  220.607923] lowmem_reserve[]: 0 0 3503 3503
[  220.635414]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  220.639712] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  220.644029]  ? lock_downgrade+0x900/0x900
[  220.648849] lowmem_reserve[]: 0 0 0 0
[  220.678078]  ? trace_hardirqs_off+0xb8/0x310
[  220.682215] 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
[  220.686011]  ? trace_hardirqs_off+0xb8/0x310
[  220.690389] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  220.703910]  __alloc_pages_slowpath+0x2651/0x2de0
[  220.708303] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  220.723403]  ? warn_alloc+0x120/0x120
[  220.728207] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  220.743733]  ? print_usage_bug+0xc0/0xc0
[  220.747513] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  220.756821]  ? warn_alloc+0x120/0x120
[  220.760860] 5171 total pagecache pages
[  220.769439]  ? warn_alloc+0x120/0x120
[  220.773229] 0 pages in swap cache
[  220.777114]  ? print_usage_bug+0xc0/0xc0
[  220.780892] Swap cache stats: add 0, delete 0, find 0/0
[  220.784362]  ? kvm_clock_read+0x18/0x30
[  220.788398] Free swap  = 0kB
[  220.793756]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  220.797722] Total swap = 0kB
[  220.800735]  ? print_usage_bug+0xc0/0xc0
[  220.805728] 1965979 pages RAM
[  220.808739]  ? __lock_acquire+0x62f/0x4c20
[  220.812777] 0 pages HighMem/MovableOnly
[  220.815877]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  220.820086] 342854 pages reserved
[  220.824055]  ? should_fail+0x22d/0xd01
[  220.829574] 0 pages cma reserved
[  220.833016]  ? __lock_acquire+0x62f/0x4c20
[  220.836938] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  220.840250]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  220.840264]  ? __lock_acquire+0x62f/0x4c20
[  220.840282]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  220.844561] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  220.850996]  ? __lock_acquire+0x62f/0x4c20
[  220.856121] syz-executor2 cpuset=syz2 mems_allowed=0
[  220.860358]  ? should_fail+0x22d/0xd01
[  220.889142]  ? mark_held_locks+0x130/0x130
[  220.893389]  ? mark_held_locks+0x130/0x130
[  220.897636]  ? mark_held_locks+0xc7/0x130
[  220.901783]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  220.906800]  ? zap_class+0x640/0x640
[  220.910509]  ? print_usage_bug+0xc0/0xc0
[  220.914565]  ? print_usage_bug+0xc0/0xc0
[  220.918633]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  220.924187]  ? check_preemption_disabled+0x48/0x280
[  220.929239]  ? __lock_is_held+0xb5/0x140
[  220.933301]  __alloc_pages_nodemask+0xad8/0xea0
[  220.937972]  ? zap_class+0x640/0x640
[  220.941696]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  220.946771]  ? find_held_lock+0x36/0x1c0
[  220.950860]  ? ____cache_alloc_node+0x1c7/0x1e0
[  220.955531]  ? lock_downgrade+0x900/0x900
[  220.959686]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  220.965231]  cache_grow_begin+0xa5/0x8c0
[  220.969289]  ? do_raw_spin_unlock+0xa7/0x330
[  220.973705]  fallback_alloc+0x204/0x2e0
[  220.977717]  ____cache_alloc_node+0x1c7/0x1e0
[  220.982219]  kmem_cache_alloc_node+0xe3/0x730
[  220.986716]  ? ipv6_get_ifaddr+0x42e/0x620
[  220.990961]  __alloc_skb+0x119/0x770
[  220.994686]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  220.999969]  ? netdev_alloc_frag+0x1f0/0x1f0
[  221.004408]  ? lock_downgrade+0x900/0x900
[  221.008558]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  221.014094]  ? refcount_sub_and_test_checked+0x203/0x310
[  221.019575]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  221.025039]  ? addrconf_rs_timer+0x690/0x690
[  221.029457]  ndisc_alloc_skb+0x144/0x340
[  221.033551]  ndisc_send_rs+0x331/0x6e0
[  221.037448]  addrconf_rs_timer+0x314/0x690
[  221.041690]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  221.045935]  call_timer_fn+0x272/0x920
[  221.049819]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  221.054053]  ? process_timeout+0x40/0x40
[  221.058139]  ? mark_held_locks+0xc7/0x130
[  221.062306]  ? _raw_spin_unlock_irq+0x27/0x80
[  221.066801]  ? _raw_spin_unlock_irq+0x27/0x80
[  221.071293]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  221.075528]  ? lockdep_hardirqs_on+0x296/0x5b0
[  221.080114]  ? trace_hardirqs_on+0xbd/0x310
[  221.084445]  ? kasan_check_read+0x11/0x20
[  221.088604]  ? __run_timers+0x7da/0xc70
[  221.092584]  ? trace_hardirqs_off_caller+0x310/0x310
[  221.097710]  ? tcp_compressed_ack_kick+0x220/0x220
[  221.102655]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  221.106890]  __run_timers+0x7e5/0xc70
[  221.110702]  ? timer_fixup_init+0x70/0x70
[  221.114859]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  221.119891]  ? zap_class+0x640/0x640
[  221.123608]  ? print_usage_bug+0xc0/0xc0
[  221.127696]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  221.132891]  ? find_held_lock+0x36/0x1c0
[  221.136955]  ? zap_class+0x640/0x640
[  221.140706]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  221.146247]  ? check_preemption_disabled+0x48/0x280
[  221.151276]  ? __lock_is_held+0xb5/0x140
[  221.155337]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  221.160873]  ? check_preemption_disabled+0x48/0x280
[  221.165890]  run_timer_softirq+0x52/0xb0
[  221.169947]  ? rcu_read_lock_sched_held+0x14f/0x180
[  221.174962]  __do_softirq+0x308/0xb7e
[  221.178763]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  221.183255]  ? lock_downgrade+0x900/0x900
[  221.187411]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  221.192518]  ? pvclock_read_flags+0x160/0x160
[  221.197029]  ? lapic_next_event+0x5a/0x90
[  221.201179]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  221.206720]  ? kvm_clock_read+0x18/0x30
[  221.210712]  ? kvm_sched_clock_read+0x9/0x20
[  221.215119]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  221.220666]  ? check_preemption_disabled+0x48/0x280
[  221.225709]  irq_exit+0x17f/0x1c0
[  221.229167]  smp_apic_timer_interrupt+0x1cb/0x760
[  221.234029]  ? smp_reschedule_interrupt+0x109/0x650
[  221.239603]  ? smp_call_function_single_interrupt+0x650/0x650
[  221.245498]  ? interrupt_entry+0xb5/0xc0
[  221.249574]  ? trace_hardirqs_off_caller+0xbb/0x310
[  221.254588]  ? trace_hardirqs_off_caller+0xbb/0x310
[  221.259608]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  221.264459]  ? trace_hardirqs_on_caller+0x310/0x310
[  221.269473]  ? trace_hardirqs_on_caller+0x310/0x310
[  221.274497]  ? task_prio+0x50/0x50
[  221.278036]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  221.283573]  ? check_preemption_disabled+0x48/0x280
[  221.288592]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  221.293464]  apic_timer_interrupt+0xf/0x20
[  221.297720]  </IRQ>
[  221.299960] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  221.305146] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  221.324356] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  221.332075] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  221.339339] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  221.346603] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  221.353879] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  221.361164] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  221.368461]  retint_kernel+0x1b/0x2d
[  221.372178] RIP: 0010:dump_stack+0x358/0x39d
[  221.376583] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  221.395479] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  221.403184] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  221.410450] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  221.417718] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  221.424987] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  221.432251] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  221.439558]  ? dump_stack+0x34f/0x39d
[  221.443384]  ? dump_stack_print_info.cold.1+0x20/0x20
[  221.448592]  ? mark_held_locks+0x130/0x130
[  221.452825]  ? mark_held_locks+0x130/0x130
[  221.457066]  dump_header+0x27b/0xf72
[  221.460792]  ? pagefault_out_of_memory+0x197/0x197
[  221.465733]  ? __lock_acquire+0x62f/0x4c20
[  221.469973]  ? print_usage_bug+0xc0/0xc0
[  221.474042]  ? zap_class+0x640/0x640
[  221.477756]  ? print_usage_bug+0xc0/0xc0
[  221.482329]  ? print_usage_bug+0xc0/0xc0
[  221.486391]  ? print_usage_bug+0xc0/0xc0
[  221.490459]  ? find_held_lock+0x36/0x1c0
[  221.494530]  ? mark_held_locks+0xc7/0x130
[  221.498697]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  221.503804]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  221.508906]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  221.513494]  ? trace_hardirqs_on+0xbd/0x310
[  221.517820]  ? kasan_check_read+0x11/0x20
[  221.521969]  ? ___ratelimit+0x3b4/0x672
[  221.525945]  ? trace_hardirqs_off_caller+0x310/0x310
[  221.531051]  ? trace_hardirqs_on+0x310/0x310
[  221.535460]  ? lock_downgrade+0x900/0x900
[  221.539612]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  221.544725]  ? ___ratelimit+0x3b9/0x672
[  221.548706]  ? idr_get_free+0xf70/0xf70
[  221.552681]  ? kasan_check_read+0x11/0x20
[  221.556830]  ? do_raw_spin_unlock+0xa7/0x330
[  221.561248]  oom_kill_process.cold.27+0x10/0x903
[  221.566017]  ? zap_class+0x640/0x640
[  221.569733]  ? _raw_spin_unlock+0x2c/0x50
[  221.573879]  ? oom_badness+0xe6/0xaa0
[  221.577685]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  221.582611]  ? kasan_check_read+0x11/0x20
[  221.586763]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  221.592044]  ? oom_evaluate_task+0x540/0x540
[  221.596458]  ? find_held_lock+0x36/0x1c0
[  221.600526]  ? out_of_memory+0x974/0x1430
[  221.604679]  ? lock_downgrade+0x900/0x900
[  221.608833]  ? check_preemption_disabled+0x48/0x280
[  221.613856]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  221.618785]  ? kasan_check_read+0x11/0x20
[  221.622933]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  221.628217]  ? rcu_softirq_qs+0x20/0x20
[  221.632194]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  221.637729]  ? oom_evaluate_task+0x302/0x540
[  221.642144]  out_of_memory+0xa84/0x1430
[  221.646144]  ? oom_killer_disable+0x3a0/0x3a0
[  221.650663]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  221.655613]  ? __ww_mutex_check_waiters+0x160/0x160
[  221.660657]  __alloc_pages_slowpath+0x232c/0x2de0
[  221.665538]  ? warn_alloc+0x120/0x120
[  221.669545]  ? mark_held_locks+0x130/0x130
[  221.673787]  ? find_get_entry+0xaae/0x1120
[  221.678296]  ? filemap_map_pages+0x1a20/0x1a20
[  221.682882]  ? zap_class+0x640/0x640
[  221.686604]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  221.692157]  ? check_preemption_disabled+0x48/0x280
[  221.697180]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  221.702716]  ? should_fail+0x22d/0xd01
[  221.706645]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  221.711750]  ? zap_class+0x640/0x640
[  221.715491]  ? __lock_is_held+0xb5/0x140
[  221.719565]  ? mark_held_locks+0x130/0x130
[  221.723802]  ? lock_release+0xa00/0xa00
[  221.727778]  ? perf_trace_sched_process_exec+0x860/0x860
[  221.733231]  ? xa_load+0x2ba/0x460
[  221.736795]  ? lock_downgrade+0x900/0x900
[  221.741246]  ? __might_sleep+0x95/0x190
[  221.745230]  __alloc_pages_nodemask+0xad8/0xea0
[  221.749905]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  221.754921]  ? __page_cache_alloc+0x191/0x5c0
[  221.759411]  ? xa_load+0x2e1/0x460
[  221.762951]  ? xa_clear_mark+0x40/0x40
[  221.766843]  ? zap_class+0x640/0x640
[  221.770564]  ? zap_class+0x640/0x640
[  221.774277]  ? zap_class+0x640/0x640
[  221.777989]  ? __do_page_cache_readahead+0x663/0x810
[  221.783097]  ? find_held_lock+0x36/0x1c0
[  221.787170]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  221.792713]  alloc_pages_current+0x173/0x350
[  221.797157]  __page_cache_alloc+0x38c/0x5c0
[  221.801475]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  221.806405]  ? kasan_check_read+0x11/0x20
[  221.810545]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  221.816061]  ? generic_perform_write+0x6a0/0x6a0
[  221.820822]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  221.826363]  ? check_preemption_disabled+0x48/0x280
[  221.831381]  filemap_fault+0x1595/0x25f0
[  221.835453]  ? __lock_page_or_retry+0xa00/0xa00
[  221.840176]  ? mark_held_locks+0x130/0x130
[  221.844420]  ? filemap_map_pages+0xd6b/0x1a20
[  221.848920]  ? lock_downgrade+0x900/0x900
[  221.853077]  ? check_preemption_disabled+0x48/0x280
[  221.858124]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  221.863055]  ? kasan_check_read+0x11/0x20
[  221.867201]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  221.872477]  ? rcu_softirq_qs+0x20/0x20
[  221.876460]  ? filemap_map_pages+0xd92/0x1a20
[  221.880970]  ? find_get_entries_tag+0x1400/0x1400
[  221.885816]  ? debug_object_destroy+0x2b0/0x2b0
[  221.890492]  ? lock_pi_update_atomic+0x150/0x150
[  221.895246]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  221.900802]  ? lock_acquire+0x1ed/0x520
[  221.904778]  ? ext4_filemap_fault+0x7a/0xad
[  221.909109]  ? lock_release+0xa00/0xa00
[  221.913088]  ? perf_trace_sched_process_exec+0x860/0x860
[  221.918545]  ? print_usage_bug+0xc0/0xc0
[  221.922616]  ? print_usage_bug+0xc0/0xc0
[  221.926708]  ? down_read+0x8d/0x120
[  221.930334]  ? ext4_filemap_fault+0x7a/0xad
[  221.934691]  ? __down_interruptible+0x700/0x700
[  221.939383]  ext4_filemap_fault+0x82/0xad
[  221.943538]  __do_fault+0x100/0x6b0
[  221.947182]  ? pmd_devmap_trans_unstable+0x220/0x220
[  221.952300]  ? mark_held_locks+0x130/0x130
[  221.956542]  ? mark_held_locks+0x130/0x130
[  221.960780]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  221.965547]  ? retint_kernel+0x2d/0x2d
[  221.969436]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  221.974985]  __handle_mm_fault+0x3ea0/0x5be0
[  221.979398]  ? perf_trace_lock+0x7a0/0x7a0
[  221.983652]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  221.988508]  ? __switch_to_asm+0x34/0x70
[  221.992622]  ? __switch_to_asm+0x34/0x70
[  221.996714]  ? zap_class+0x640/0x640
[  222.000427]  ? zap_class+0x640/0x640
[  222.004141]  ? __x64_sys_futex+0x53e/0x6a0
[  222.008392]  ? find_held_lock+0x36/0x1c0
[  222.012464]  ? handle_mm_fault+0x42a/0xc70
[  222.016702]  ? lock_downgrade+0x900/0x900
[  222.020856]  ? check_preemption_disabled+0x48/0x280
[  222.025884]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  222.030815]  ? kasan_check_read+0x11/0x20
[  222.034964]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  222.040246]  ? rcu_softirq_qs+0x20/0x20
[  222.044223]  ? trace_hardirqs_off_caller+0x310/0x310
[  222.049333]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  222.054878]  ? check_preemption_disabled+0x48/0x280
[  222.059913]  handle_mm_fault+0x54f/0xc70
[  222.063985]  ? __handle_mm_fault+0x5be0/0x5be0
[  222.068576]  ? find_vma+0x34/0x190
[  222.072123]  __do_page_fault+0x5e8/0xe60
[  222.076194]  ? trace_hardirqs_off+0xb8/0x310
[  222.080618]  do_page_fault+0xf2/0x7e0
[  222.084436]  ? vmalloc_sync_all+0x30/0x30
[  222.088593]  ? error_entry+0x70/0xd0
[  222.092319]  ? trace_hardirqs_off_caller+0xbb/0x310
[  222.097341]  ? trace_hardirqs_on_caller+0xc0/0x310
[  222.102280]  ? syscall_return_slowpath+0x5e0/0x5e0
[  222.107225]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  222.112089]  ? trace_hardirqs_on_caller+0x310/0x310
[  222.117126]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  222.122607]  ? prepare_exit_to_usermode+0x291/0x3b0
[  222.127658]  ? page_fault+0x8/0x30
[  222.131229]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  222.136090]  ? page_fault+0x8/0x30
[  222.139648]  page_fault+0x1e/0x30
[  222.143115] RIP: 0033:0x4290d7
[  222.146326] Code: Bad RIP value.
[  222.149687] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  222.155047] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  222.162319] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  222.169585] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  222.176867] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  222.184146] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  222.191447] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  222.191510] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  222.198721] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  222.198729] Call Trace:
[  222.205312] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  222.214561]  <IRQ>
[  222.217129] syz-fuzzer cpuset=/ mems_allowed=0
[  222.227351]  dump_stack+0x244/0x39d
[  222.237677]  ? dump_stack_print_info.cold.1+0x20/0x20
[  222.242879]  warn_alloc.cold.116+0xb7/0x1bd
[  222.247200]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  222.252069]  ? lock_downgrade+0x900/0x900
[  222.256234]  ? trace_hardirqs_off+0xb8/0x310
[  222.260658]  ? trace_hardirqs_off+0xb8/0x310
[  222.265073]  __alloc_pages_slowpath+0x2651/0x2de0
[  222.269942]  ? warn_alloc+0x120/0x120
[  222.273747]  ? print_usage_bug+0xc0/0xc0
[  222.277808]  ? warn_alloc+0x120/0x120
[  222.281633]  ? warn_alloc+0x120/0x120
[  222.285442]  ? print_usage_bug+0xc0/0xc0
[  222.289523]  ? print_usage_bug+0xc0/0xc0
[  222.293589]  ? __lock_acquire+0x62f/0x4c20
[  222.297833]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  222.303388]  ? should_fail+0x22d/0xd01
[  222.307285]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  222.312389]  ? __lock_acquire+0x62f/0x4c20
[  222.316644]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  222.321753]  ? __lock_acquire+0x62f/0x4c20
[  222.325984]  ? should_fail+0x22d/0xd01
[  222.329873]  ? find_held_lock+0x36/0x1c0
[  222.333939]  ? mark_held_locks+0x130/0x130
[  222.338177]  ? mark_held_locks+0x130/0x130
[  222.342407]  ? zap_class+0x640/0x640
[  222.346121]  ? zap_class+0x640/0x640
[  222.349873]  ? print_usage_bug+0xc0/0xc0
[  222.353931]  ? do_raw_spin_unlock+0xa7/0x330
[  222.358341]  ? zap_class+0x640/0x640
[  222.362056]  ? print_usage_bug+0xc0/0xc0
[  222.366117]  ? wq_watchdog_touch+0x9c/0xfe
[  222.370354]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  222.375893]  ? check_preemption_disabled+0x48/0x280
[  222.380923]  ? __lock_is_held+0xb5/0x140
[  222.384993]  __alloc_pages_nodemask+0xad8/0xea0
[  222.389671]  ? zap_class+0x640/0x640
[  222.393422]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  222.398452]  ? find_held_lock+0x36/0x1c0
[  222.402521]  ? ____cache_alloc_node+0x1c7/0x1e0
[  222.407208]  ? lock_downgrade+0x900/0x900
[  222.411368]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  222.416911]  cache_grow_begin+0xa5/0x8c0
[  222.420970]  ? do_raw_spin_unlock+0xa7/0x330
[  222.425386]  fallback_alloc+0x204/0x2e0
[  222.429365]  ____cache_alloc_node+0x1c7/0x1e0
[  222.433880]  kmem_cache_alloc_node+0xe3/0x730
[  222.438375]  ? ipv6_get_ifaddr+0x42e/0x620
[  222.442619]  __alloc_skb+0x119/0x770
[  222.446346]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  222.451638]  ? netdev_alloc_frag+0x1f0/0x1f0
[  222.456050]  ? lock_downgrade+0x900/0x900
[  222.460206]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  222.465743]  ? refcount_sub_and_test_checked+0x203/0x310
[  222.471199]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  222.476660]  ? addrconf_rs_timer+0x690/0x690
[  222.481083]  ndisc_alloc_skb+0x144/0x340
[  222.485178]  ndisc_send_rs+0x331/0x6e0
[  222.489073]  addrconf_rs_timer+0x314/0x690
[  222.493312]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  222.497561]  call_timer_fn+0x272/0x920
[  222.501465]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  222.505700]  ? process_timeout+0x40/0x40
[  222.509770]  ? __run_timers+0x7da/0xc70
[  222.513754]  ? _raw_spin_unlock_irq+0x27/0x80
[  222.518247]  ? _raw_spin_unlock_irq+0x27/0x80
[  222.522740]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  222.526984]  ? lockdep_hardirqs_on+0x296/0x5b0
[  222.531582]  ? trace_hardirqs_on+0xbd/0x310
[  222.535903]  ? kasan_check_read+0x11/0x20
[  222.540051]  ? __run_timers+0x7da/0xc70
[  222.544026]  ? trace_hardirqs_off_caller+0x310/0x310
[  222.549153]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  222.553406]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  222.557646]  __run_timers+0x7e5/0xc70
[  222.561472]  ? timer_fixup_init+0x70/0x70
[  222.565620]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  222.570666]  ? zap_class+0x640/0x640
[  222.574429]  ? enqueue_hrtimer+0x1a5/0x560
[  222.578674]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  222.583871]  ? find_held_lock+0x36/0x1c0
[  222.587934]  ? zap_class+0x640/0x640
[  222.591658]  ? pvclock_read_flags+0x160/0x160
[  222.596175]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  222.601711]  ? check_preemption_disabled+0x48/0x280
[  222.606737]  ? __lock_is_held+0xb5/0x140
[  222.610799]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  222.616335]  ? check_preemption_disabled+0x48/0x280
[  222.621848]  run_timer_softirq+0x52/0xb0
[  222.625918]  ? rcu_read_lock_sched_held+0x14f/0x180
[  222.630945]  __do_softirq+0x308/0xb7e
[  222.634749]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  222.639239]  ? lock_downgrade+0x900/0x900
[  222.643392]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  222.648529]  ? pvclock_read_flags+0x160/0x160
[  222.653027]  ? lapic_next_event+0x5a/0x90
[  222.657209]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  222.662749]  ? kvm_clock_read+0x18/0x30
[  222.666742]  ? kvm_sched_clock_read+0x9/0x20
[  222.671156]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  222.676697]  ? check_preemption_disabled+0x48/0x280
[  222.681725]  irq_exit+0x17f/0x1c0
[  222.685182]  smp_apic_timer_interrupt+0x1cb/0x760
[  222.690028]  ? smp_reschedule_interrupt+0x109/0x650
[  222.695047]  ? smp_call_function_single_interrupt+0x650/0x650
[  222.700933]  ? interrupt_entry+0xb5/0xc0
[  222.704996]  ? trace_hardirqs_off_caller+0xbb/0x310
[  222.710011]  ? trace_hardirqs_off_caller+0xbb/0x310
[  222.715033]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  222.719878]  ? trace_hardirqs_on_caller+0x310/0x310
[  222.724891]  ? trace_hardirqs_on_caller+0x310/0x310
[  222.729904]  ? task_prio+0x50/0x50
[  222.733446]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  222.738985]  ? check_preemption_disabled+0x48/0x280
[  222.744006]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  222.748859]  apic_timer_interrupt+0xf/0x20
[  222.753225]  </IRQ>
[  222.755465] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  222.760393] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  222.779292] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  222.786997] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  222.794264] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  222.801527] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  222.808796] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  222.816060] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  222.823407]  skb_clone+0x1bb/0x500
[  222.826947]  ? skb_split+0x11e0/0x11e0
[  222.830838]  ? preempt_notifier_register+0x200/0x200
[  222.835938]  ? __switch_to_asm+0x34/0x70
[  222.840000]  ? __switch_to_asm+0x34/0x70
[  222.844059]  ? __switch_to_asm+0x40/0x70
[  222.848120]  ? __switch_to_asm+0x34/0x70
[  222.852205]  ? __switch_to_asm+0x40/0x70
[  222.856274]  ? __switch_to_asm+0x40/0x70
[  222.860324]  ? __switch_to_asm+0x34/0x70
[  222.864396]  ? __switch_to_asm+0x34/0x70
[  222.868467]  ? __switch_to_asm+0x40/0x70
[  222.872546]  ? __switch_to_asm+0x34/0x70
[  222.876608]  bpf_clone_redirect+0xb9/0x490
[  222.880856]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  222.885874]  ? __sched_text_start+0x8/0x8
[  222.890024]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  222.894622]  ? retint_kernel+0x2d/0x2d
[  222.898523]  ? trace_hardirqs_on_caller+0xc0/0x310
[  222.903455]  ? find_held_lock+0x36/0x1c0
[  222.907581]  ? lock_acquire+0x1ed/0x520
[  222.911554]  ? bpf_test_run+0x3cb/0x780
[  222.915528]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  222.921065]  ? check_preemption_disabled+0x48/0x280
[  222.926090]  ? kasan_check_read+0x11/0x20
[  222.930238]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  222.935511]  ? rcu_softirq_qs+0x20/0x20
[  222.939490]  ? preempt_schedule+0x4d/0x60
[  222.943647]  ? ___preempt_schedule+0x16/0x18
[  222.948073]  ? bpf_test_run+0x25d/0x780
[  222.952092]  ? netlink_diag_dump+0x2a0/0x2a0
[  222.956500]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  222.962054]  ? bpf_test_init.isra.10+0x70/0x100
[  222.966733]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  222.971495]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  222.976332]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  222.981893]  ? fput+0x130/0x1a0
[  222.985219]  ? __bpf_prog_get+0x9b/0x290
[  222.989306]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  222.994167]  ? bpf_prog_test_run+0x130/0x1a0
[  222.998588]  ? __x64_sys_bpf+0x3db/0x520
[  223.002672]  ? bpf_prog_get+0x20/0x20
[  223.006501]  ? do_syscall_64+0x1b9/0x820
[  223.010583]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  223.015971]  ? syscall_return_slowpath+0x5e0/0x5e0
[  223.020913]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  223.025762]  ? trace_hardirqs_on_caller+0x310/0x310
[  223.030793]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  223.035827]  ? prepare_exit_to_usermode+0x291/0x3b0
[  223.040868]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  223.045746]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  223.051138] warn_alloc_show_mem: 1 callbacks suppressed
[  223.051155] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  223.051157] Mem-Info:
[  223.051213] active_anon:57128 inactive_anon:971 isolated_anon:0
[  223.051213]  active_file:40 inactive_file:20 isolated_file:0
[  223.051213]  unevictable:0 dirty:11 writeback:0 unstable:0
[  223.051213]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  223.051213]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  223.051213]  free:13615 free_pcp:64 free_cma:0
[  223.056541] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  223.063567] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  223.065934] Call Trace:
[  223.065985]  <IRQ>
[  223.098951] 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
[  223.108300]  dump_stack+0x244/0x39d
[  223.136205] lowmem_reserve[]: 0 2818 6321 6321
[  223.138793]  ? dump_stack_print_info.cold.1+0x20/0x20
[  223.140912] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  223.167025]  warn_alloc.cold.116+0xb7/0x1bd
[  223.170615] lowmem_reserve[]: 0 0 3503 3503
[  223.175225]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  223.180385] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  223.207878]  ? lock_downgrade+0x900/0x900
[  223.212173] lowmem_reserve[]: 0 0 0 0
[  223.216489]  ? trace_hardirqs_off+0xb8/0x310
[  223.221299] 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
[  223.250442]  ? trace_hardirqs_off+0xb8/0x310
[  223.254562] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  223.258393]  __alloc_pages_slowpath+0x2651/0x2de0
[  223.262774] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  223.276311]  ? warn_alloc+0x120/0x120
[  223.280678] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  223.295773]  ? print_usage_bug+0xc0/0xc0
[  223.300600] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  223.316123]  ? warn_alloc+0x120/0x120
[  223.319908] 5171 total pagecache pages
[  223.328750]  ? warn_alloc+0x120/0x120
[  223.332796] 0 pages in swap cache
[  223.341386]  ? print_usage_bug+0xc0/0xc0
[  223.345157] Swap cache stats: add 0, delete 0, find 0/0
[  223.345166] Free swap  = 0kB
[  223.349045]  ? kvm_clock_read+0x18/0x30
[  223.352822] Total swap = 0kB
[  223.356271]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  223.360308] 1965979 pages RAM
[  223.365678]  ? print_usage_bug+0xc0/0xc0
[  223.368674] 0 pages HighMem/MovableOnly
[  223.372649]  ? __lock_acquire+0x62f/0x4c20
[  223.375655] 342854 pages reserved
[  223.380672]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  223.383754] 0 pages cma reserved
[  223.387815]  ? should_fail+0x22d/0xd01
[  223.391836] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  223.396000]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  223.396017]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  223.399538] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  223.404967]  ? __lock_acquire+0x62f/0x4c20
[  223.404986]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  223.408481] syz-executor2 cpuset=syz2 mems_allowed=0
[  223.412358]  ? __lock_acquire+0x62f/0x4c20
[  223.412406]  ? should_fail+0x22d/0xd01
[  223.462291]  ? rcu_irq_exit+0x1a2/0x390
[  223.466289]  ? mark_held_locks+0x130/0x130
[  223.470538]  ? mark_held_locks+0x130/0x130
[  223.474783]  ? mark_held_locks+0xc7/0x130
[  223.478935]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  223.483966]  ? zap_class+0x640/0x640
[  223.487685]  ? print_usage_bug+0xc0/0xc0
[  223.491749]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  223.497289]  ? check_preemption_disabled+0x48/0x280
[  223.502312]  ? __lock_is_held+0xb5/0x140
[  223.506384]  __alloc_pages_nodemask+0xad8/0xea0
[  223.511067]  ? zap_class+0x640/0x640
[  223.514787]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  223.519818]  ? find_held_lock+0x36/0x1c0
[  223.523888]  ? ____cache_alloc_node+0x1c7/0x1e0
[  223.528555]  ? lock_downgrade+0x900/0x900
[  223.532707]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  223.538257]  cache_grow_begin+0xa5/0x8c0
[  223.542331]  ? do_raw_spin_unlock+0xa7/0x330
[  223.546758]  fallback_alloc+0x204/0x2e0
[  223.550739]  ____cache_alloc_node+0x1c7/0x1e0
[  223.555238]  kmem_cache_alloc_node+0xe3/0x730
[  223.559749]  ? ipv6_get_ifaddr+0x42e/0x620
[  223.563992]  __alloc_skb+0x119/0x770
[  223.567704]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  223.572987]  ? netdev_alloc_frag+0x1f0/0x1f0
[  223.577396]  ? lock_downgrade+0x900/0x900
[  223.581553]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  223.587087]  ? refcount_sub_and_test_checked+0x203/0x310
[  223.592556]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  223.598004]  ? addrconf_rs_timer+0x690/0x690
[  223.602419]  ndisc_alloc_skb+0x144/0x340
[  223.606486]  ndisc_send_rs+0x331/0x6e0
[  223.610382]  addrconf_rs_timer+0x314/0x690
[  223.614623]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  223.618875]  call_timer_fn+0x272/0x920
[  223.622767]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  223.627004]  ? process_timeout+0x40/0x40
[  223.631073]  ? mark_held_locks+0xc7/0x130
[  223.635226]  ? _raw_spin_unlock_irq+0x27/0x80
[  223.639721]  ? _raw_spin_unlock_irq+0x27/0x80
[  223.644214]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  223.648444]  ? lockdep_hardirqs_on+0x296/0x5b0
[  223.653025]  ? trace_hardirqs_on+0xbd/0x310
[  223.657342]  ? kasan_check_read+0x11/0x20
[  223.661492]  ? __run_timers+0x7da/0xc70
[  223.665468]  ? trace_hardirqs_off_caller+0x310/0x310
[  223.670575]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  223.674815]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  223.679048]  __run_timers+0x7e5/0xc70
[  223.682859]  ? timer_fixup_init+0x70/0x70
[  223.687011]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  223.692043]  ? zap_class+0x640/0x640
[  223.695779]  ? print_usage_bug+0xc0/0xc0
[  223.699857]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  223.705055]  ? find_held_lock+0x36/0x1c0
[  223.709133]  ? zap_class+0x640/0x640
[  223.712866]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  223.718404]  ? check_preemption_disabled+0x48/0x280
[  223.723431]  ? __lock_is_held+0xb5/0x140
[  223.727490]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  223.733029]  ? check_preemption_disabled+0x48/0x280
[  223.738060]  run_timer_softirq+0x52/0xb0
[  223.742119]  ? rcu_read_lock_sched_held+0x14f/0x180
[  223.747219]  __do_softirq+0x308/0xb7e
[  223.751055]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  223.755544]  ? lock_downgrade+0x900/0x900
[  223.759711]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  223.764820]  ? pvclock_read_flags+0x160/0x160
[  223.769316]  ? lapic_next_event+0x5a/0x90
[  223.773469]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  223.779010]  ? kvm_clock_read+0x18/0x30
[  223.782996]  ? kvm_sched_clock_read+0x9/0x20
[  223.787404]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  223.792944]  ? check_preemption_disabled+0x48/0x280
[  223.797972]  irq_exit+0x17f/0x1c0
[  223.801424]  smp_apic_timer_interrupt+0x1cb/0x760
[  223.806279]  ? smp_reschedule_interrupt+0x109/0x650
[  223.811298]  ? smp_call_function_single_interrupt+0x650/0x650
[  223.817179]  ? interrupt_entry+0xb5/0xc0
[  223.821238]  ? trace_hardirqs_off_caller+0xbb/0x310
[  223.826251]  ? trace_hardirqs_off_caller+0xbb/0x310
[  223.831262]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  223.836106]  ? trace_hardirqs_on_caller+0x310/0x310
[  223.841119]  ? trace_hardirqs_on_caller+0x310/0x310
[  223.846137]  ? task_prio+0x50/0x50
[  223.849686]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  223.855222]  ? check_preemption_disabled+0x48/0x280
[  223.860260]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  223.865126]  apic_timer_interrupt+0xf/0x20
[  223.869370]  </IRQ>
[  223.871604] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  223.876834] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  223.895732] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  223.903447] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  223.910714] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  223.917982] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  223.925248] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  223.932515] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  223.939807]  retint_kernel+0x1b/0x2d
[  223.943523] RIP: 0010:dump_stack+0x358/0x39d
[  223.947945] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  223.966840] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  223.974557] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  223.981837] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  223.989101] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  223.996362] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  224.003635] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  224.010921]  ? dump_stack+0x34f/0x39d
[  224.014736]  ? dump_stack_print_info.cold.1+0x20/0x20
[  224.019930]  ? mark_held_locks+0x130/0x130
[  224.024166]  ? mark_held_locks+0x130/0x130
[  224.028409]  dump_header+0x27b/0xf72
[  224.032167]  ? pagefault_out_of_memory+0x197/0x197
[  224.037102]  ? __lock_acquire+0x62f/0x4c20
[  224.041339]  ? print_usage_bug+0xc0/0xc0
[  224.045407]  ? zap_class+0x640/0x640
[  224.049125]  ? print_usage_bug+0xc0/0xc0
[  224.053198]  ? print_usage_bug+0xc0/0xc0
[  224.057273]  ? print_usage_bug+0xc0/0xc0
[  224.061358]  ? find_held_lock+0x36/0x1c0
[  224.065440]  ? mark_held_locks+0xc7/0x130
[  224.069588]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  224.074693]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  224.079800]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  224.084385]  ? trace_hardirqs_on+0xbd/0x310
[  224.088705]  ? kasan_check_read+0x11/0x20
[  224.092853]  ? ___ratelimit+0x3b4/0x672
[  224.096838]  ? trace_hardirqs_off_caller+0x310/0x310
[  224.101946]  ? trace_hardirqs_on+0x310/0x310
[  224.106352]  ? lock_downgrade+0x900/0x900
[  224.110503]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  224.115608]  ? ___ratelimit+0x3b9/0x672
[  224.119591]  ? idr_get_free+0xf70/0xf70
[  224.123566]  ? kasan_check_read+0x11/0x20
[  224.127715]  ? do_raw_spin_unlock+0xa7/0x330
[  224.132131]  oom_kill_process.cold.27+0x10/0x903
[  224.136887]  ? zap_class+0x640/0x640
[  224.140602]  ? _raw_spin_unlock+0x2c/0x50
[  224.144754]  ? oom_badness+0xe6/0xaa0
[  224.148555]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  224.153480]  ? kasan_check_read+0x11/0x20
[  224.157634]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  224.162913]  ? oom_evaluate_task+0x540/0x540
[  224.167337]  ? find_held_lock+0x36/0x1c0
[  224.171403]  ? out_of_memory+0x974/0x1430
[  224.175555]  ? lock_downgrade+0x900/0x900
[  224.179705]  ? check_preemption_disabled+0x48/0x280
[  224.184721]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  224.189651]  ? kasan_check_read+0x11/0x20
[  224.193797]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  224.199070]  ? rcu_softirq_qs+0x20/0x20
[  224.203063]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  224.208595]  ? oom_evaluate_task+0x302/0x540
[  224.213011]  out_of_memory+0xa84/0x1430
[  224.217001]  ? oom_killer_disable+0x3a0/0x3a0
[  224.221492]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  224.226421]  ? __ww_mutex_check_waiters+0x160/0x160
[  224.231450]  __alloc_pages_slowpath+0x232c/0x2de0
[  224.236314]  ? warn_alloc+0x120/0x120
[  224.240111]  ? mark_held_locks+0x130/0x130
[  224.244351]  ? find_get_entry+0xaae/0x1120
[  224.248591]  ? filemap_map_pages+0x1a20/0x1a20
[  224.253179]  ? zap_class+0x640/0x640
[  224.256897]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  224.262436]  ? check_preemption_disabled+0x48/0x280
[  224.267449]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  224.272989]  ? should_fail+0x22d/0xd01
[  224.276894]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  224.282002]  ? zap_class+0x640/0x640
[  224.285756]  ? __lock_is_held+0xb5/0x140
[  224.289820]  ? mark_held_locks+0x130/0x130
[  224.294054]  ? lock_release+0xa00/0xa00
[  224.298029]  ? perf_trace_sched_process_exec+0x860/0x860
[  224.303476]  ? xa_load+0x2ba/0x460
[  224.307015]  ? lock_downgrade+0x900/0x900
[  224.311186]  ? __might_sleep+0x95/0x190
[  224.315176]  __alloc_pages_nodemask+0xad8/0xea0
[  224.319846]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  224.324862]  ? __page_cache_alloc+0x191/0x5c0
[  224.329349]  ? xa_load+0x2e1/0x460
[  224.332884]  ? xa_clear_mark+0x40/0x40
[  224.336771]  ? zap_class+0x640/0x640
[  224.340494]  ? zap_class+0x640/0x640
[  224.344208]  ? zap_class+0x640/0x640
[  224.347919]  ? __do_page_cache_readahead+0x663/0x810
[  224.353041]  ? find_held_lock+0x36/0x1c0
[  224.357105]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  224.362654]  alloc_pages_current+0x173/0x350
[  224.367071]  __page_cache_alloc+0x38c/0x5c0
[  224.371391]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  224.376317]  ? kasan_check_read+0x11/0x20
[  224.380461]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  224.385743]  ? generic_perform_write+0x6a0/0x6a0
[  224.390501]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  224.396043]  ? check_preemption_disabled+0x48/0x280
[  224.401064]  filemap_fault+0x1595/0x25f0
[  224.405173]  ? __lock_page_or_retry+0xa00/0xa00
[  224.409845]  ? mark_held_locks+0x130/0x130
[  224.414088]  ? filemap_map_pages+0xd6b/0x1a20
[  224.418583]  ? lock_downgrade+0x900/0x900
[  224.422740]  ? check_preemption_disabled+0x48/0x280
[  224.427776]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  224.432701]  ? kasan_check_read+0x11/0x20
[  224.436846]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  224.442125]  ? rcu_softirq_qs+0x20/0x20
[  224.446112]  ? filemap_map_pages+0xd92/0x1a20
[  224.450620]  ? find_get_entries_tag+0x1400/0x1400
[  224.455475]  ? debug_object_destroy+0x2b0/0x2b0
[  224.460144]  ? lock_pi_update_atomic+0x150/0x150
[  224.464901]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  224.470450]  ? lock_acquire+0x1ed/0x520
[  224.474424]  ? ext4_filemap_fault+0x7a/0xad
[  224.478759]  ? lock_release+0xa00/0xa00
[  224.482734]  ? perf_trace_sched_process_exec+0x860/0x860
[  224.488186]  ? print_usage_bug+0xc0/0xc0
[  224.492262]  ? print_usage_bug+0xc0/0xc0
[  224.496348]  ? down_read+0x8d/0x120
[  224.499973]  ? ext4_filemap_fault+0x7a/0xad
[  224.504291]  ? __down_interruptible+0x700/0x700
[  224.508980]  ext4_filemap_fault+0x82/0xad
[  224.513132]  __do_fault+0x100/0x6b0
[  224.516768]  ? pmd_devmap_trans_unstable+0x220/0x220
[  224.521878]  ? mark_held_locks+0x130/0x130
[  224.526111]  ? mark_held_locks+0x130/0x130
[  224.530371]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  224.535130]  ? retint_kernel+0x2d/0x2d
[  224.539018]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  224.544576]  __handle_mm_fault+0x3ea0/0x5be0
[  224.548994]  ? perf_trace_lock+0x7a0/0x7a0
[  224.553233]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  224.558079]  ? __switch_to_asm+0x34/0x70
[  224.562138]  ? __switch_to_asm+0x34/0x70
[  224.566214]  ? zap_class+0x640/0x640
[  224.569925]  ? zap_class+0x640/0x640
[  224.573645]  ? __x64_sys_futex+0x53e/0x6a0
[  224.577893]  ? find_held_lock+0x36/0x1c0
[  224.581965]  ? handle_mm_fault+0x42a/0xc70
[  224.586201]  ? lock_downgrade+0x900/0x900
[  224.590350]  ? check_preemption_disabled+0x48/0x280
[  224.595391]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  224.600317]  ? kasan_check_read+0x11/0x20
[  224.604467]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  224.609741]  ? rcu_softirq_qs+0x20/0x20
[  224.613715]  ? trace_hardirqs_off_caller+0x310/0x310
[  224.618821]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  224.624520]  ? check_preemption_disabled+0x48/0x280
[  224.629545]  handle_mm_fault+0x54f/0xc70
[  224.633610]  ? __handle_mm_fault+0x5be0/0x5be0
[  224.638203]  ? find_vma+0x34/0x190
[  224.641761]  __do_page_fault+0x5e8/0xe60
[  224.645825]  ? trace_hardirqs_off+0xb8/0x310
[  224.650245]  do_page_fault+0xf2/0x7e0
[  224.654044]  ? vmalloc_sync_all+0x30/0x30
[  224.658188]  ? error_entry+0x70/0xd0
[  224.661906]  ? trace_hardirqs_off_caller+0xbb/0x310
[  224.666921]  ? trace_hardirqs_on_caller+0xc0/0x310
[  224.671847]  ? syscall_return_slowpath+0x5e0/0x5e0
[  224.676788]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  224.681638]  ? trace_hardirqs_on_caller+0x310/0x310
[  224.686657]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  224.692113]  ? prepare_exit_to_usermode+0x291/0x3b0
[  224.697140]  ? page_fault+0x8/0x30
[  224.700717]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  224.705562]  ? page_fault+0x8/0x30
[  224.709117]  page_fault+0x1e/0x30
[  224.712575] RIP: 0033:0x4290d7
[  224.715776] Code: Bad RIP value.
[  224.719138] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  224.724499] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  224.731768] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  224.739033] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  224.746297] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  224.753563] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  224.760873] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  224.760977] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  224.768178] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  224.768187] Call Trace:
[  224.774746] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  224.784022]  <IRQ>
[  224.786590] syz-fuzzer cpuset=/ mems_allowed=0
[  224.796807]  dump_stack+0x244/0x39d
[  224.807136]  ? dump_stack_print_info.cold.1+0x20/0x20
[  224.812359]  warn_alloc.cold.116+0xb7/0x1bd
[  224.816694]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  224.821549]  ? lock_downgrade+0x900/0x900
[  224.825704]  ? trace_hardirqs_off+0xb8/0x310
[  224.830134]  ? trace_hardirqs_off+0xb8/0x310
[  224.834569]  __alloc_pages_slowpath+0x2651/0x2de0
[  224.839477]  ? warn_alloc+0x120/0x120
[  224.843278]  ? print_usage_bug+0xc0/0xc0
[  224.847380]  ? warn_alloc+0x120/0x120
[  224.851180]  ? warn_alloc+0x120/0x120
[  224.854996]  ? print_usage_bug+0xc0/0xc0
[  224.859056]  ? print_usage_bug+0xc0/0xc0
[  224.863120]  ? __lock_acquire+0x62f/0x4c20
[  224.867356]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  224.872889]  ? should_fail+0x22d/0xd01
[  224.876779]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  224.881894]  ? __lock_acquire+0x62f/0x4c20
[  224.886131]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  224.891248]  ? __lock_acquire+0x62f/0x4c20
[  224.895480]  ? should_fail+0x22d/0xd01
[  224.899377]  ? mark_held_locks+0x130/0x130
[  224.903616]  ? mark_held_locks+0x130/0x130
[  224.907853]  ? zap_class+0x640/0x640
[  224.911569]  ? __lock_acquire+0x62f/0x4c20
[  224.915816]  ? zap_class+0x640/0x640
[  224.919524]  ? mark_held_locks+0x130/0x130
[  224.923751]  ? print_usage_bug+0xc0/0xc0
[  224.927824]  ? wq_watchdog_touch+0x9c/0xfe
[  224.932059]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  224.937593]  ? check_preemption_disabled+0x48/0x280
[  224.942614]  ? __lock_is_held+0xb5/0x140
[  224.946691]  __alloc_pages_nodemask+0xad8/0xea0
[  224.951362]  ? zap_class+0x640/0x640
[  224.955082]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  224.960120]  ? find_held_lock+0x36/0x1c0
[  224.964199]  ? ____cache_alloc_node+0x1c7/0x1e0
[  224.968897]  ? lock_downgrade+0x900/0x900
[  224.973076]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  224.978616]  cache_grow_begin+0xa5/0x8c0
[  224.982712]  ? do_raw_spin_unlock+0xa7/0x330
[  224.987141]  fallback_alloc+0x204/0x2e0
[  224.991119]  ____cache_alloc_node+0x1c7/0x1e0
[  224.995641]  kmem_cache_alloc_node+0xe3/0x730
[  225.000142]  ? do_raw_spin_unlock+0xa7/0x330
[  225.004546]  ? do_raw_spin_trylock+0x270/0x270
[  225.009134]  __alloc_skb+0x119/0x770
[  225.012852]  ? netdev_alloc_frag+0x1f0/0x1f0
[  225.017256]  ? atomic_notifier_call_chain+0xc6/0x190
[  225.022356]  ? lock_downgrade+0x900/0x900
[  225.026511]  ? check_preemption_disabled+0x48/0x280
[  225.031528]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  225.036457]  ? kasan_check_read+0x11/0x20
[  225.040607]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  225.045888]  ? rcu_softirq_qs+0x20/0x20
[  225.049859]  ? kasan_check_read+0x11/0x20
[  225.054009]  ? do_raw_write_trylock+0x270/0x270
[  225.058690]  __neigh_notify+0x8c/0x160
[  225.062581]  ? neigh_connected_output+0x780/0x780
[  225.067423]  neigh_timer_handler+0x6cb/0xdf0
[  225.071832]  ? check_preemption_disabled+0x48/0x280
[  225.076850]  ? neigh_periodic_work+0xc60/0xc60
[  225.081439]  ? __lock_is_held+0xb5/0x140
[  225.085513]  call_timer_fn+0x272/0x920
[  225.089400]  ? neigh_periodic_work+0xc60/0xc60
[  225.093978]  ? process_timeout+0x40/0x40
[  225.098058]  ? __run_timers+0x7da/0xc70
[  225.102031]  ? _raw_spin_unlock_irq+0x27/0x80
[  225.106521]  ? _raw_spin_unlock_irq+0x27/0x80
[  225.111016]  ? neigh_periodic_work+0xc60/0xc60
[  225.115610]  ? lockdep_hardirqs_on+0x296/0x5b0
[  225.120205]  ? trace_hardirqs_on+0xbd/0x310
[  225.124525]  ? kasan_check_read+0x11/0x20
[  225.128676]  ? __run_timers+0x7da/0xc70
[  225.132660]  ? trace_hardirqs_off_caller+0x310/0x310
[  225.137773]  ? neigh_periodic_work+0xc60/0xc60
[  225.142353]  __run_timers+0x7e5/0xc70
[  225.146160]  ? timer_fixup_init+0x70/0x70
[  225.150309]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  225.155325]  ? zap_class+0x640/0x640
[  225.159042]  ? enqueue_hrtimer+0x1a5/0x560
[  225.163293]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  225.168488]  ? find_held_lock+0x36/0x1c0
[  225.172554]  ? zap_class+0x640/0x640
[  225.176272]  ? pvclock_read_flags+0x160/0x160
[  225.180773]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  225.186308]  ? check_preemption_disabled+0x48/0x280
[  225.191330]  ? __lock_is_held+0xb5/0x140
[  225.195388]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  225.200935]  ? check_preemption_disabled+0x48/0x280
[  225.205957]  run_timer_softirq+0x52/0xb0
[  225.210033]  ? rcu_read_lock_sched_held+0x14f/0x180
[  225.215047]  __do_softirq+0x308/0xb7e
[  225.218849]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  225.223341]  ? lock_downgrade+0x900/0x900
[  225.227491]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  225.232599]  ? pvclock_read_flags+0x160/0x160
[  225.237098]  ? lapic_next_event+0x5a/0x90
[  225.241242]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  225.246789]  ? kvm_clock_read+0x18/0x30
[  225.250775]  ? kvm_sched_clock_read+0x9/0x20
[  225.255216]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  225.260751]  ? check_preemption_disabled+0x48/0x280
[  225.265794]  irq_exit+0x17f/0x1c0
[  225.269246]  smp_apic_timer_interrupt+0x1cb/0x760
[  225.274085]  ? smp_reschedule_interrupt+0x109/0x650
[  225.279099]  ? smp_call_function_single_interrupt+0x650/0x650
[  225.284984]  ? interrupt_entry+0xb5/0xc0
[  225.289047]  ? trace_hardirqs_off_caller+0xbb/0x310
[  225.294061]  ? trace_hardirqs_off_caller+0xbb/0x310
[  225.299089]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  225.303933]  ? trace_hardirqs_on_caller+0x310/0x310
[  225.308948]  ? trace_hardirqs_on_caller+0x310/0x310
[  225.313964]  ? task_prio+0x50/0x50
[  225.317503]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  225.323035]  ? check_preemption_disabled+0x48/0x280
[  225.328058]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  225.332908]  apic_timer_interrupt+0xf/0x20
[  225.337133]  </IRQ>
[  225.339365] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  225.344305] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  225.363204] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  225.370904] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  225.378184] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  225.385470] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  225.392736] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  225.400002] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  225.407304]  skb_clone+0x1bb/0x500
[  225.410843]  ? skb_split+0x11e0/0x11e0
[  225.414736]  ? preempt_notifier_register+0x200/0x200
[  225.419836]  ? __switch_to_asm+0x34/0x70
[  225.423893]  ? __switch_to_asm+0x34/0x70
[  225.427949]  ? __switch_to_asm+0x40/0x70
[  225.432006]  ? __switch_to_asm+0x34/0x70
[  225.436064]  ? __switch_to_asm+0x40/0x70
[  225.440121]  ? __switch_to_asm+0x40/0x70
[  225.444180]  ? __switch_to_asm+0x34/0x70
[  225.448242]  ? __switch_to_asm+0x34/0x70
[  225.452301]  ? __switch_to_asm+0x40/0x70
[  225.456374]  ? __switch_to_asm+0x34/0x70
[  225.460437]  bpf_clone_redirect+0xb9/0x490
[  225.464683]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  225.469741]  ? __sched_text_start+0x8/0x8
[  225.473890]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  225.478469]  ? retint_kernel+0x2d/0x2d
[  225.482354]  ? trace_hardirqs_on_caller+0xc0/0x310
[  225.487289]  ? find_held_lock+0x36/0x1c0
[  225.491354]  ? lock_acquire+0x1ed/0x520
[  225.495339]  ? bpf_test_run+0x3cb/0x780
[  225.499316]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  225.504864]  ? check_preemption_disabled+0x48/0x280
[  225.509887]  ? kasan_check_read+0x11/0x20
[  225.514032]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  225.519309]  ? rcu_softirq_qs+0x20/0x20
[  225.523287]  ? preempt_schedule+0x4d/0x60
[  225.527448]  ? ___preempt_schedule+0x16/0x18
[  225.531861]  ? bpf_test_run+0x25d/0x780
[  225.535842]  ? netlink_diag_dump+0x2a0/0x2a0
[  225.540251]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  225.545792]  ? bpf_test_init.isra.10+0x70/0x100
[  225.550464]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  225.555228]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  225.560068]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  225.565603]  ? fput+0x130/0x1a0
[  225.568890]  ? __bpf_prog_get+0x9b/0x290
[  225.572956]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  225.577798]  ? bpf_prog_test_run+0x130/0x1a0
[  225.582209]  ? __x64_sys_bpf+0x3db/0x520
[  225.586302]  ? bpf_prog_get+0x20/0x20
[  225.590146]  ? do_syscall_64+0x1b9/0x820
[  225.594206]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  225.599570]  ? syscall_return_slowpath+0x5e0/0x5e0
[  225.604522]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  225.609362]  ? trace_hardirqs_on_caller+0x310/0x310
[  225.614396]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  225.619426]  ? prepare_exit_to_usermode+0x291/0x3b0
[  225.624459]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  225.629308]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  225.634701] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  225.634706] warn_alloc_show_mem: 1 callbacks suppressed
[  225.634713] Mem-Info:
[  225.641723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  225.647090] active_anon:57128 inactive_anon:971 isolated_anon:0
[  225.647090]  active_file:40 inactive_file:20 isolated_file:0
[  225.647090]  unevictable:0 dirty:11 writeback:0 unstable:0
[  225.647090]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  225.647090]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  225.647090]  free:13615 free_pcp:64 free_cma:0
[  225.649458] Call Trace:
[  225.658839] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  225.691767]  <IRQ>
[  225.694338] 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
[  225.722262]  dump_stack+0x244/0x39d
[  225.724384] lowmem_reserve[]: 0 2818 6321 6321
[  225.750520]  ? dump_stack_print_info.cold.1+0x20/0x20
[  225.754117] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  225.758703]  warn_alloc.cold.116+0xb7/0x1bd
[  225.763856] lowmem_reserve[]: 0 0 3503 3503
[  225.791344]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  225.795645] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  225.799961]  ? lock_downgrade+0x900/0x900
[  225.804779] lowmem_reserve[]: 0 0 0 0
[  225.833923]  ? trace_hardirqs_off+0xb8/0x310
[  225.838045] 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
[  225.841842]  ? trace_hardirqs_off+0xb8/0x310
[  225.846223] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  225.859744]  __alloc_pages_slowpath+0x2651/0x2de0
[  225.864137] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  225.879239]  ? warn_alloc+0x120/0x120
[  225.884052] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  225.899558]  ? print_usage_bug+0xc0/0xc0
[  225.903336] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  225.912170]  ? warn_alloc+0x120/0x120
[  225.916206] 5171 total pagecache pages
[  225.924771]  ? warn_alloc+0x120/0x120
[  225.928550] 0 pages in swap cache
[  225.932420]  ? print_usage_bug+0xc0/0xc0
[  225.936200] Swap cache stats: add 0, delete 0, find 0/0
[  225.939649]  ? kvm_clock_read+0x18/0x30
[  225.943697] Free swap  = 0kB
[  225.949053]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  225.953005] Total swap = 0kB
[  225.956030]  ? print_usage_bug+0xc0/0xc0
[  225.961019] 1965979 pages RAM
[  225.964029]  ? __lock_acquire+0x62f/0x4c20
[  225.968063] 0 pages HighMem/MovableOnly
[  225.971207]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  225.975413] 342854 pages reserved
[  225.979379]  ? should_fail+0x22d/0xd01
[  225.984891] 0 pages cma reserved
[  225.988334]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  225.992309] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  225.995571]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  226.000839] syz-executor2 cpuset=syz2 mems_allowed=0
[  226.011312]  ? __lock_acquire+0x62f/0x4c20
[  226.025704]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  226.030803]  ? __lock_acquire+0x62f/0x4c20
[  226.035033]  ? should_fail+0x22d/0xd01
[  226.038933]  ? rcu_irq_exit+0x1a2/0x390
[  226.042918]  ? mark_held_locks+0x130/0x130
[  226.047164]  ? mark_held_locks+0x130/0x130
[  226.051408]  ? mark_held_locks+0xc7/0x130
[  226.055553]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  226.060570]  ? zap_class+0x640/0x640
[  226.064286]  ? print_usage_bug+0xc0/0xc0
[  226.068348]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  226.073887]  ? check_preemption_disabled+0x48/0x280
[  226.078915]  ? __lock_is_held+0xb5/0x140
[  226.082981]  __alloc_pages_nodemask+0xad8/0xea0
[  226.087651]  ? zap_class+0x640/0x640
[  226.091368]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  226.096395]  ? find_held_lock+0x36/0x1c0
[  226.100465]  ? ____cache_alloc_node+0x1c7/0x1e0
[  226.105138]  ? lock_downgrade+0x900/0x900
[  226.109313]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  226.114853]  cache_grow_begin+0xa5/0x8c0
[  226.118917]  ? do_raw_spin_unlock+0xa7/0x330
[  226.123330]  fallback_alloc+0x204/0x2e0
[  226.127307]  ____cache_alloc_node+0x1c7/0x1e0
[  226.131806]  kmem_cache_alloc_node+0xe3/0x730
[  226.136303]  ? ipv6_get_ifaddr+0x42e/0x620
[  226.140546]  __alloc_skb+0x119/0x770
[  226.144254]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  226.149531]  ? netdev_alloc_frag+0x1f0/0x1f0
[  226.153936]  ? lock_downgrade+0x900/0x900
[  226.158089]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  226.163647]  ? refcount_sub_and_test_checked+0x203/0x310
[  226.169098]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  226.174546]  ? addrconf_rs_timer+0x690/0x690
[  226.178963]  ndisc_alloc_skb+0x144/0x340
[  226.183049]  ndisc_send_rs+0x331/0x6e0
[  226.186939]  addrconf_rs_timer+0x314/0x690
[  226.191204]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  226.195448]  call_timer_fn+0x272/0x920
[  226.199331]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  226.203562]  ? process_timeout+0x40/0x40
[  226.207643]  ? mark_held_locks+0xc7/0x130
[  226.211791]  ? _raw_spin_unlock_irq+0x27/0x80
[  226.216299]  ? _raw_spin_unlock_irq+0x27/0x80
[  226.220802]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  226.225037]  ? lockdep_hardirqs_on+0x296/0x5b0
[  226.229619]  ? trace_hardirqs_on+0xbd/0x310
[  226.233948]  ? kasan_check_read+0x11/0x20
[  226.238096]  ? __run_timers+0x7da/0xc70
[  226.242071]  ? trace_hardirqs_off_caller+0x310/0x310
[  226.247204]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  226.251443]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  226.255671]  __run_timers+0x7e5/0xc70
[  226.259492]  ? timer_fixup_init+0x70/0x70
[  226.263662]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  226.268682]  ? zap_class+0x640/0x640
[  226.272405]  ? print_usage_bug+0xc0/0xc0
[  226.276465]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  226.281673]  ? find_held_lock+0x36/0x1c0
[  226.285769]  ? zap_class+0x640/0x640
[  226.289493]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  226.295033]  ? check_preemption_disabled+0x48/0x280
[  226.300055]  ? __lock_is_held+0xb5/0x140
[  226.304113]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  226.309651]  ? check_preemption_disabled+0x48/0x280
[  226.314672]  run_timer_softirq+0x52/0xb0
[  226.318737]  ? rcu_read_lock_sched_held+0x14f/0x180
[  226.323750]  __do_softirq+0x308/0xb7e
[  226.327553]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  226.332043]  ? lock_downgrade+0x900/0x900
[  226.336195]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  226.341318]  ? pvclock_read_flags+0x160/0x160
[  226.345827]  ? lapic_next_event+0x5a/0x90
[  226.349979]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  226.355518]  ? kvm_clock_read+0x18/0x30
[  226.359495]  ? kvm_sched_clock_read+0x9/0x20
[  226.363903]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  226.369439]  ? check_preemption_disabled+0x48/0x280
[  226.374463]  irq_exit+0x17f/0x1c0
[  226.377926]  smp_apic_timer_interrupt+0x1cb/0x760
[  226.382765]  ? smp_reschedule_interrupt+0x109/0x650
[  226.387781]  ? smp_call_function_single_interrupt+0x650/0x650
[  226.393686]  ? interrupt_entry+0xb5/0xc0
[  226.397750]  ? trace_hardirqs_off_caller+0xbb/0x310
[  226.402765]  ? trace_hardirqs_off_caller+0xbb/0x310
[  226.407784]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  226.412642]  ? trace_hardirqs_on_caller+0x310/0x310
[  226.417659]  ? trace_hardirqs_on_caller+0x310/0x310
[  226.422691]  ? task_prio+0x50/0x50
[  226.426245]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  226.431783]  ? check_preemption_disabled+0x48/0x280
[  226.436804]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  226.441697]  apic_timer_interrupt+0xf/0x20
[  226.445922]  </IRQ>
[  226.448163] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  226.453355] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  226.472254] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  226.479972] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  226.487236] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  226.494502] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  226.501771] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  226.509037] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  226.516332]  retint_kernel+0x1b/0x2d
[  226.520060] RIP: 0010:dump_stack+0x358/0x39d
[  226.524482] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  226.543397] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  226.551104] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  226.558370] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  226.565644] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  226.572914] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  226.580177] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  226.587456]  ? dump_stack+0x34f/0x39d
[  226.591267]  ? dump_stack_print_info.cold.1+0x20/0x20
[  226.596457]  ? mark_held_locks+0x130/0x130
[  226.600691]  ? mark_held_locks+0x130/0x130
[  226.604944]  dump_header+0x27b/0xf72
[  226.608673]  ? pagefault_out_of_memory+0x197/0x197
[  226.613612]  ? __lock_acquire+0x62f/0x4c20
[  226.617870]  ? print_usage_bug+0xc0/0xc0
[  226.622086]  ? zap_class+0x640/0x640
[  226.625800]  ? print_usage_bug+0xc0/0xc0
[  226.629873]  ? print_usage_bug+0xc0/0xc0
[  226.633939]  ? print_usage_bug+0xc0/0xc0
[  226.638011]  ? find_held_lock+0x36/0x1c0
[  226.642077]  ? mark_held_locks+0xc7/0x130
[  226.646226]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  226.651325]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  226.656427]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  226.661020]  ? trace_hardirqs_on+0xbd/0x310
[  226.665358]  ? kasan_check_read+0x11/0x20
[  226.669502]  ? ___ratelimit+0x3b4/0x672
[  226.673472]  ? trace_hardirqs_off_caller+0x310/0x310
[  226.678570]  ? trace_hardirqs_on+0x310/0x310
[  226.682976]  ? lock_downgrade+0x900/0x900
[  226.687155]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  226.692258]  ? ___ratelimit+0x3b9/0x672
[  226.696234]  ? idr_get_free+0xf70/0xf70
[  226.700209]  ? kasan_check_read+0x11/0x20
[  226.704355]  ? do_raw_spin_unlock+0xa7/0x330
[  226.708772]  oom_kill_process.cold.27+0x10/0x903
[  226.713527]  ? zap_class+0x640/0x640
[  226.717238]  ? _raw_spin_unlock+0x2c/0x50
[  226.721384]  ? oom_badness+0xe6/0xaa0
[  226.725194]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  226.730119]  ? kasan_check_read+0x11/0x20
[  226.734266]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  226.739544]  ? oom_evaluate_task+0x540/0x540
[  226.743984]  ? find_held_lock+0x36/0x1c0
[  226.748064]  ? out_of_memory+0x974/0x1430
[  226.752673]  ? lock_downgrade+0x900/0x900
[  226.756837]  ? check_preemption_disabled+0x48/0x280
[  226.761857]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  226.766786]  ? kasan_check_read+0x11/0x20
[  226.770949]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  226.776224]  ? rcu_softirq_qs+0x20/0x20
[  226.780205]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  226.785744]  ? oom_evaluate_task+0x302/0x540
[  226.790156]  out_of_memory+0xa84/0x1430
[  226.794136]  ? oom_killer_disable+0x3a0/0x3a0
[  226.798642]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  226.803575]  ? __ww_mutex_check_waiters+0x160/0x160
[  226.808600]  __alloc_pages_slowpath+0x232c/0x2de0
[  226.813472]  ? warn_alloc+0x120/0x120
[  226.817272]  ? mark_held_locks+0x130/0x130
[  226.821513]  ? find_get_entry+0xaae/0x1120
[  226.825755]  ? filemap_map_pages+0x1a20/0x1a20
[  226.830341]  ? zap_class+0x640/0x640
[  226.834075]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  226.839614]  ? check_preemption_disabled+0x48/0x280
[  226.844641]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  226.850179]  ? should_fail+0x22d/0xd01
[  226.854072]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  226.859200]  ? zap_class+0x640/0x640
[  226.862934]  ? __lock_is_held+0xb5/0x140
[  226.867001]  ? mark_held_locks+0x130/0x130
[  226.871242]  ? lock_release+0xa00/0xa00
[  226.875218]  ? perf_trace_sched_process_exec+0x860/0x860
[  226.880667]  ? xa_load+0x2ba/0x460
[  226.884208]  ? lock_downgrade+0x900/0x900
[  226.888362]  ? __might_sleep+0x95/0x190
[  226.892355]  __alloc_pages_nodemask+0xad8/0xea0
[  226.897046]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  226.902061]  ? __page_cache_alloc+0x191/0x5c0
[  226.906553]  ? xa_load+0x2e1/0x460
[  226.910095]  ? xa_clear_mark+0x40/0x40
[  226.913984]  ? zap_class+0x640/0x640
[  226.917707]  ? zap_class+0x640/0x640
[  226.921421]  ? zap_class+0x640/0x640
[  226.925134]  ? __do_page_cache_readahead+0x663/0x810
[  226.930260]  ? find_held_lock+0x36/0x1c0
[  226.934322]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  226.939884]  alloc_pages_current+0x173/0x350
[  226.944298]  __page_cache_alloc+0x38c/0x5c0
[  226.948617]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  226.953555]  ? kasan_check_read+0x11/0x20
[  226.957700]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  226.962978]  ? generic_perform_write+0x6a0/0x6a0
[  226.967745]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  226.973315]  ? check_preemption_disabled+0x48/0x280
[  226.978340]  filemap_fault+0x1595/0x25f0
[  226.982434]  ? __lock_page_or_retry+0xa00/0xa00
[  226.987103]  ? mark_held_locks+0x130/0x130
[  226.991346]  ? filemap_map_pages+0xd6b/0x1a20
[  226.995845]  ? lock_downgrade+0x900/0x900
[  226.999991]  ? check_preemption_disabled+0x48/0x280
[  227.005010]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  227.009952]  ? kasan_check_read+0x11/0x20
[  227.014100]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  227.019389]  ? rcu_softirq_qs+0x20/0x20
[  227.023379]  ? filemap_map_pages+0xd92/0x1a20
[  227.027891]  ? find_get_entries_tag+0x1400/0x1400
[  227.032735]  ? debug_object_destroy+0x2b0/0x2b0
[  227.037409]  ? lock_pi_update_atomic+0x150/0x150
[  227.042179]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.047731]  ? lock_acquire+0x1ed/0x520
[  227.051730]  ? ext4_filemap_fault+0x7a/0xad
[  227.056062]  ? lock_release+0xa00/0xa00
[  227.060048]  ? perf_trace_sched_process_exec+0x860/0x860
[  227.065497]  ? print_usage_bug+0xc0/0xc0
[  227.069574]  ? print_usage_bug+0xc0/0xc0
[  227.073664]  ? down_read+0x8d/0x120
[  227.077285]  ? ext4_filemap_fault+0x7a/0xad
[  227.081612]  ? __down_interruptible+0x700/0x700
[  227.086297]  ext4_filemap_fault+0x82/0xad
[  227.090444]  __do_fault+0x100/0x6b0
[  227.094085]  ? pmd_devmap_trans_unstable+0x220/0x220
[  227.099190]  ? mark_held_locks+0x130/0x130
[  227.103451]  ? mark_held_locks+0x130/0x130
[  227.107713]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  227.112492]  ? retint_kernel+0x2d/0x2d
[  227.116379]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  227.121919]  __handle_mm_fault+0x3ea0/0x5be0
[  227.126380]  ? perf_trace_lock+0x7a0/0x7a0
[  227.130624]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  227.135495]  ? __switch_to_asm+0x34/0x70
[  227.139556]  ? __switch_to_asm+0x34/0x70
[  227.143651]  ? zap_class+0x640/0x640
[  227.147367]  ? zap_class+0x640/0x640
[  227.151078]  ? __x64_sys_futex+0x53e/0x6a0
[  227.155317]  ? find_held_lock+0x36/0x1c0
[  227.159383]  ? handle_mm_fault+0x42a/0xc70
[  227.163619]  ? lock_downgrade+0x900/0x900
[  227.167779]  ? check_preemption_disabled+0x48/0x280
[  227.172811]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  227.177740]  ? kasan_check_read+0x11/0x20
[  227.181894]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  227.187187]  ? rcu_softirq_qs+0x20/0x20
[  227.191184]  ? trace_hardirqs_off_caller+0x310/0x310
[  227.196286]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  227.201824]  ? check_preemption_disabled+0x48/0x280
[  227.206844]  handle_mm_fault+0x54f/0xc70
[  227.210911]  ? __handle_mm_fault+0x5be0/0x5be0
[  227.215496]  ? find_vma+0x34/0x190
[  227.219060]  __do_page_fault+0x5e8/0xe60
[  227.223122]  ? trace_hardirqs_off+0xb8/0x310
[  227.227542]  do_page_fault+0xf2/0x7e0
[  227.231346]  ? vmalloc_sync_all+0x30/0x30
[  227.235495]  ? error_entry+0x70/0xd0
[  227.239209]  ? trace_hardirqs_off_caller+0xbb/0x310
[  227.244236]  ? trace_hardirqs_on_caller+0xc0/0x310
[  227.249170]  ? syscall_return_slowpath+0x5e0/0x5e0
[  227.254095]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  227.258940]  ? trace_hardirqs_on_caller+0x310/0x310
[  227.263957]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  227.269411]  ? prepare_exit_to_usermode+0x291/0x3b0
[  227.274423]  ? page_fault+0x8/0x30
[  227.277979]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  227.282832]  ? page_fault+0x8/0x30
[  227.286374]  page_fault+0x1e/0x30
[  227.289837] RIP: 0033:0x4290d7
[  227.293041] Code: Bad RIP value.
[  227.296448] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  227.301825] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  227.309091] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  227.316356] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  227.323654] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  227.330921] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  227.338227] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  227.338292] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  227.345499] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  227.345504] Call Trace:
[  227.345510]  <IRQ>
[  227.345528]  dump_stack+0x244/0x39d
[  227.345547]  ? dump_stack_print_info.cold.1+0x20/0x20
[  227.352187] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  227.361408]  warn_alloc.cold.116+0xb7/0x1bd
[  227.363966] syz-fuzzer cpuset=/ mems_allowed=0
[  227.366122]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  227.398799]  ? lock_downgrade+0x900/0x900
[  227.402954]  ? trace_hardirqs_off+0xb8/0x310
[  227.407367]  ? trace_hardirqs_off+0xb8/0x310
[  227.411787]  __alloc_pages_slowpath+0x2651/0x2de0
[  227.416666]  ? warn_alloc+0x120/0x120
[  227.420471]  ? warn_alloc+0x120/0x120
[  227.424293]  ? warn_alloc+0x120/0x120
[  227.428113]  ? print_usage_bug+0xc0/0xc0
[  227.432173]  ? enqueue_hrtimer+0x1a5/0x560
[  227.436429]  ? print_usage_bug+0xc0/0xc0
[  227.440504]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  227.445719]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  227.451255]  ? should_fail+0x22d/0xd01
[  227.455149]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  227.460254]  ? __lock_acquire+0x62f/0x4c20
[  227.464492]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  227.469593]  ? __lock_acquire+0x62f/0x4c20
[  227.473828]  ? should_fail+0x22d/0xd01
[  227.477728]  ? mark_held_locks+0x130/0x130
[  227.481966]  ? mark_held_locks+0x130/0x130
[  227.486202]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  227.491222]  ? ktime_get+0x2c1/0x400
[  227.494939]  ? zap_class+0x640/0x640
[  227.498677]  ? print_usage_bug+0xc0/0xc0
[  227.502744]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.508280]  ? check_preemption_disabled+0x48/0x280
[  227.513303]  ? __lock_is_held+0xb5/0x140
[  227.517369]  __alloc_pages_nodemask+0xad8/0xea0
[  227.522038]  ? zap_class+0x640/0x640
[  227.525784]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  227.530825]  ? find_held_lock+0x36/0x1c0
[  227.534895]  ? ____cache_alloc_node+0x1c7/0x1e0
[  227.539564]  ? lock_downgrade+0x900/0x900
[  227.543739]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.549293]  cache_grow_begin+0xa5/0x8c0
[  227.553355]  ? do_raw_spin_unlock+0xa7/0x330
[  227.557777]  fallback_alloc+0x204/0x2e0
[  227.561758]  ____cache_alloc_node+0x1c7/0x1e0
[  227.566256]  kmem_cache_alloc_node+0xe3/0x730
[  227.570749]  ? ipv6_get_ifaddr+0x42e/0x620
[  227.574996]  __alloc_skb+0x119/0x770
[  227.578706]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  227.583989]  ? netdev_alloc_frag+0x1f0/0x1f0
[  227.588396]  ? lock_downgrade+0x900/0x900
[  227.592590]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.598128]  ? refcount_sub_and_test_checked+0x203/0x310
[  227.603579]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  227.609028]  ? addrconf_rs_timer+0x690/0x690
[  227.613448]  ndisc_alloc_skb+0x144/0x340
[  227.617517]  ndisc_send_rs+0x331/0x6e0
[  227.621408]  addrconf_rs_timer+0x314/0x690
[  227.625658]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  227.629903]  call_timer_fn+0x272/0x920
[  227.633787]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  227.638021]  ? process_timeout+0x40/0x40
[  227.642087]  ? __run_timers+0x7da/0xc70
[  227.646062]  ? _raw_spin_unlock_irq+0x27/0x80
[  227.650594]  ? _raw_spin_unlock_irq+0x27/0x80
[  227.655086]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  227.659320]  ? lockdep_hardirqs_on+0x296/0x5b0
[  227.663931]  ? trace_hardirqs_on+0xbd/0x310
[  227.668263]  ? kasan_check_read+0x11/0x20
[  227.672438]  ? __run_timers+0x7da/0xc70
[  227.676423]  ? trace_hardirqs_off_caller+0x310/0x310
[  227.681532]  ? neigh_periodic_work+0xc60/0xc60
[  227.686120]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  227.690366]  __run_timers+0x7e5/0xc70
[  227.694182]  ? timer_fixup_init+0x70/0x70
[  227.698329]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  227.703342]  ? zap_class+0x640/0x640
[  227.707057]  ? enqueue_hrtimer+0x1a5/0x560
[  227.711294]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  227.716491]  ? find_held_lock+0x36/0x1c0
[  227.720558]  ? zap_class+0x640/0x640
[  227.724276]  ? pvclock_read_flags+0x160/0x160
[  227.728776]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.734314]  ? check_preemption_disabled+0x48/0x280
[  227.739336]  ? __lock_is_held+0xb5/0x140
[  227.743398]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.748937]  ? check_preemption_disabled+0x48/0x280
[  227.753958]  run_timer_softirq+0x52/0xb0
[  227.758021]  ? rcu_read_lock_sched_held+0x14f/0x180
[  227.763064]  __do_softirq+0x308/0xb7e
[  227.766866]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  227.771360]  ? lock_downgrade+0x900/0x900
[  227.775512]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  227.780621]  ? pvclock_read_flags+0x160/0x160
[  227.785132]  ? lapic_next_event+0x5a/0x90
[  227.789284]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.794825]  ? kvm_clock_read+0x18/0x30
[  227.798799]  ? kvm_sched_clock_read+0x9/0x20
[  227.803223]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.808761]  ? check_preemption_disabled+0x48/0x280
[  227.813789]  irq_exit+0x17f/0x1c0
[  227.817241]  smp_apic_timer_interrupt+0x1cb/0x760
[  227.822079]  ? smp_reschedule_interrupt+0x109/0x650
[  227.827097]  ? smp_call_function_single_interrupt+0x650/0x650
[  227.832996]  ? interrupt_entry+0xb5/0xc0
[  227.837059]  ? trace_hardirqs_off_caller+0xbb/0x310
[  227.842077]  ? trace_hardirqs_off_caller+0xbb/0x310
[  227.847096]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  227.851938]  ? trace_hardirqs_on_caller+0x310/0x310
[  227.856952]  ? trace_hardirqs_on_caller+0x310/0x310
[  227.861965]  ? task_prio+0x50/0x50
[  227.865519]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.871055]  ? check_preemption_disabled+0x48/0x280
[  227.876077]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  227.880927]  apic_timer_interrupt+0xf/0x20
[  227.885157]  </IRQ>
[  227.887398] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  227.892341] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  227.911248] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  227.918955] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  227.926224] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  227.933504] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  227.940780] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  227.948046] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  227.955380]  skb_clone+0x1bb/0x500
[  227.958922]  ? skb_split+0x11e0/0x11e0
[  227.962826]  ? preempt_notifier_register+0x200/0x200
[  227.967924]  ? __switch_to_asm+0x34/0x70
[  227.971999]  ? __switch_to_asm+0x34/0x70
[  227.976075]  ? __switch_to_asm+0x40/0x70
[  227.980133]  ? __switch_to_asm+0x34/0x70
[  227.984203]  ? __switch_to_asm+0x40/0x70
[  227.988289]  ? __switch_to_asm+0x40/0x70
[  227.992348]  ? __switch_to_asm+0x34/0x70
[  227.996404]  ? __switch_to_asm+0x34/0x70
[  228.000461]  ? __switch_to_asm+0x40/0x70
[  228.004523]  ? __switch_to_asm+0x34/0x70
[  228.008584]  bpf_clone_redirect+0xb9/0x490
[  228.012828]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  228.017846]  ? __sched_text_start+0x8/0x8
[  228.021997]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  228.026579]  ? retint_kernel+0x2d/0x2d
[  228.030469]  ? trace_hardirqs_on_caller+0xc0/0x310
[  228.035404]  ? find_held_lock+0x36/0x1c0
[  228.039477]  ? lock_acquire+0x1ed/0x520
[  228.043451]  ? bpf_test_run+0x3cb/0x780
[  228.047422]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.052961]  ? check_preemption_disabled+0x48/0x280
[  228.058001]  ? kasan_check_read+0x11/0x20
[  228.062149]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  228.067424]  ? rcu_softirq_qs+0x20/0x20
[  228.071403]  ? preempt_schedule+0x4d/0x60
[  228.075548]  ? ___preempt_schedule+0x16/0x18
[  228.079970]  ? bpf_test_run+0x25d/0x780
[  228.083957]  ? netlink_diag_dump+0x2a0/0x2a0
[  228.088381]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  228.093916]  ? bpf_test_init.isra.10+0x70/0x100
[  228.098592]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  228.103359]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  228.108204]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  228.113745]  ? fput+0x130/0x1a0
[  228.117026]  ? __bpf_prog_get+0x9b/0x290
[  228.121091]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  228.125932]  ? bpf_prog_test_run+0x130/0x1a0
[  228.130342]  ? __x64_sys_bpf+0x3db/0x520
[  228.134431]  ? bpf_prog_get+0x20/0x20
[  228.138257]  ? do_syscall_64+0x1b9/0x820
[  228.142332]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  228.147694]  ? syscall_return_slowpath+0x5e0/0x5e0
[  228.152618]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  228.157474]  ? trace_hardirqs_on_caller+0x310/0x310
[  228.162490]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  228.167505]  ? prepare_exit_to_usermode+0x291/0x3b0
[  228.172524]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  228.177371]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  228.182753] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  228.182758] warn_alloc_show_mem: 1 callbacks suppressed
[  228.182765] Mem-Info:
[  228.189773] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  228.195172] active_anon:57128 inactive_anon:971 isolated_anon:0
[  228.195172]  active_file:40 inactive_file:20 isolated_file:0
[  228.195172]  unevictable:0 dirty:11 writeback:0 unstable:0
[  228.195172]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  228.195172]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  228.195172]  free:13615 free_pcp:64 free_cma:0
[  228.197548] Call Trace:
[  228.206933] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  228.239860]  <IRQ>
[  228.242429] 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
[  228.270356]  dump_stack+0x244/0x39d
[  228.272480] lowmem_reserve[]: 0 2818 6321 6321
[  228.298595]  ? dump_stack_print_info.cold.1+0x20/0x20
[  228.302194] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  228.306789]  warn_alloc.cold.116+0xb7/0x1bd
[  228.311943] lowmem_reserve[]: 0 0 3503 3503
[  228.339432]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  228.343732] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  228.348046]  ? lock_downgrade+0x900/0x900
[  228.352859] lowmem_reserve[]: 0 0 0 0
[  228.382003]  ? trace_hardirqs_off+0xb8/0x310
[  228.386125] 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
[  228.389926]  ? trace_hardirqs_off+0xb8/0x310
[  228.394308] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  228.407827]  __alloc_pages_slowpath+0x2651/0x2de0
[  228.412208] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  228.427305]  ? warn_alloc+0x120/0x120
[  228.432109] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  228.447614]  ? warn_alloc+0x120/0x120
[  228.451400] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  228.460222]  ? warn_alloc+0x120/0x120
[  228.464001] 5171 total pagecache pages
[  228.472567]  ? print_usage_bug+0xc0/0xc0
[  228.476346] 0 pages in swap cache
[  228.480222]  ? debug_object_activate+0x402/0x600
[  228.484277] Swap cache stats: add 0, delete 0, find 0/0
[  228.487722]  ? print_usage_bug+0xc0/0xc0
[  228.492456] Free swap  = 0kB
[  228.497811]  ? find_held_lock+0x36/0x1c0
[  228.501844] Total swap = 0kB
[  228.504858]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  228.508895] 1965979 pages RAM
[  228.511906]  ? should_fail+0x22d/0xd01
[  228.517415] 0 pages HighMem/MovableOnly
[  228.520514]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  228.524377] 342854 pages reserved
[  228.528367]  ? __lock_acquire+0x62f/0x4c20
[  228.533444] 0 pages cma reserved
[  228.536891]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  228.541159] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  228.544447]  ? __lock_acquire+0x62f/0x4c20
[  228.544463]  ? should_fail+0x22d/0xd01
[  228.549597] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  228.556047]  ? mark_held_locks+0x130/0x130
[  228.560249] syz-executor2 cpuset=syz2 mems_allowed=0
[  228.564131]  ? mark_held_locks+0x130/0x130
[  228.588170]  ? mod_timer+0x631/0x1560
[  228.591970]  ? zap_class+0x640/0x640
[  228.595685]  ? print_usage_bug+0xc0/0xc0
[  228.599748]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.605288]  ? check_preemption_disabled+0x48/0x280
[  228.610315]  ? __lock_is_held+0xb5/0x140
[  228.614382]  __alloc_pages_nodemask+0xad8/0xea0
[  228.619046]  ? zap_class+0x640/0x640
[  228.622765]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  228.627793]  ? find_held_lock+0x36/0x1c0
[  228.631863]  ? ____cache_alloc_node+0x1c7/0x1e0
[  228.636534]  ? lock_downgrade+0x900/0x900
[  228.640694]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.646234]  cache_grow_begin+0xa5/0x8c0
[  228.650291]  ? do_raw_spin_unlock+0xa7/0x330
[  228.654707]  fallback_alloc+0x204/0x2e0
[  228.658691]  ____cache_alloc_node+0x1c7/0x1e0
[  228.663190]  kmem_cache_alloc_node+0xe3/0x730
[  228.667694]  ? ipv6_get_ifaddr+0x42e/0x620
[  228.671968]  __alloc_skb+0x119/0x770
[  228.675684]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  228.680964]  ? netdev_alloc_frag+0x1f0/0x1f0
[  228.685371]  ? lock_downgrade+0x900/0x900
[  228.689540]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.695074]  ? refcount_sub_and_test_checked+0x203/0x310
[  228.700563]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  228.706013]  ? addrconf_rs_timer+0x690/0x690
[  228.710430]  ndisc_alloc_skb+0x144/0x340
[  228.714493]  ndisc_send_rs+0x331/0x6e0
[  228.718384]  addrconf_rs_timer+0x314/0x690
[  228.722648]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  228.726891]  call_timer_fn+0x272/0x920
[  228.730777]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  228.735013]  ? process_timeout+0x40/0x40
[  228.739078]  ? mark_held_locks+0xc7/0x130
[  228.743227]  ? _raw_spin_unlock_irq+0x27/0x80
[  228.747720]  ? _raw_spin_unlock_irq+0x27/0x80
[  228.752216]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  228.756957]  ? lockdep_hardirqs_on+0x296/0x5b0
[  228.761539]  ? trace_hardirqs_on+0xbd/0x310
[  228.765887]  ? kasan_check_read+0x11/0x20
[  228.770045]  ? __run_timers+0x7da/0xc70
[  228.774020]  ? trace_hardirqs_off_caller+0x310/0x310
[  228.779139]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  228.783377]  __run_timers+0x7e5/0xc70
[  228.787187]  ? timer_fixup_init+0x70/0x70
[  228.791334]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  228.796348]  ? zap_class+0x640/0x640
[  228.800069]  ? print_usage_bug+0xc0/0xc0
[  228.804132]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  228.809329]  ? find_held_lock+0x36/0x1c0
[  228.813392]  ? zap_class+0x640/0x640
[  228.817108]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.822652]  ? check_preemption_disabled+0x48/0x280
[  228.827685]  ? __lock_is_held+0xb5/0x140
[  228.831744]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.837277]  ? check_preemption_disabled+0x48/0x280
[  228.842295]  run_timer_softirq+0x52/0xb0
[  228.846355]  ? rcu_read_lock_sched_held+0x14f/0x180
[  228.851370]  __do_softirq+0x308/0xb7e
[  228.855177]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  228.859673]  ? lock_downgrade+0x900/0x900
[  228.863823]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  228.868938]  ? pvclock_read_flags+0x160/0x160
[  228.873433]  ? lapic_next_event+0x5a/0x90
[  228.877581]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.883124]  ? kvm_clock_read+0x18/0x30
[  228.887103]  ? kvm_sched_clock_read+0x9/0x20
[  228.891515]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.897057]  ? check_preemption_disabled+0x48/0x280
[  228.902077]  irq_exit+0x17f/0x1c0
[  228.905528]  smp_apic_timer_interrupt+0x1cb/0x760
[  228.910371]  ? smp_reschedule_interrupt+0x109/0x650
[  228.915391]  ? smp_call_function_single_interrupt+0x650/0x650
[  228.921276]  ? interrupt_entry+0xb5/0xc0
[  228.925339]  ? trace_hardirqs_off_caller+0xbb/0x310
[  228.930369]  ? trace_hardirqs_off_caller+0xbb/0x310
[  228.935383]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  228.940224]  ? trace_hardirqs_on_caller+0x310/0x310
[  228.945243]  ? trace_hardirqs_on_caller+0x310/0x310
[  228.950272]  ? task_prio+0x50/0x50
[  228.953814]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.959361]  ? check_preemption_disabled+0x48/0x280
[  228.964379]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  228.969240]  apic_timer_interrupt+0xf/0x20
[  228.973466]  </IRQ>
[  228.975703] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  228.980893] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  228.999805] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  229.007506] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  229.014774] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  229.022038] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  229.029305] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  229.036575] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  229.043871]  retint_kernel+0x1b/0x2d
[  229.047588] RIP: 0010:dump_stack+0x358/0x39d
[  229.051996] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  229.070908] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  229.078609] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  229.085882] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  229.093155] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  229.100454] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  229.107745] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  229.115040]  ? dump_stack+0x34f/0x39d
[  229.118849]  ? dump_stack_print_info.cold.1+0x20/0x20
[  229.124052]  ? mark_held_locks+0x130/0x130
[  229.128286]  ? mark_held_locks+0x130/0x130
[  229.132527]  dump_header+0x27b/0xf72
[  229.136252]  ? pagefault_out_of_memory+0x197/0x197
[  229.141191]  ? __lock_acquire+0x62f/0x4c20
[  229.145456]  ? print_usage_bug+0xc0/0xc0
[  229.149525]  ? zap_class+0x640/0x640
[  229.153237]  ? print_usage_bug+0xc0/0xc0
[  229.157296]  ? print_usage_bug+0xc0/0xc0
[  229.161359]  ? print_usage_bug+0xc0/0xc0
[  229.165444]  ? find_held_lock+0x36/0x1c0
[  229.169516]  ? mark_held_locks+0xc7/0x130
[  229.173672]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  229.178789]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  229.183938]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  229.188538]  ? trace_hardirqs_on+0xbd/0x310
[  229.192860]  ? kasan_check_read+0x11/0x20
[  229.197013]  ? ___ratelimit+0x3b4/0x672
[  229.200989]  ? trace_hardirqs_off_caller+0x310/0x310
[  229.206094]  ? trace_hardirqs_on+0x310/0x310
[  229.210505]  ? lock_downgrade+0x900/0x900
[  229.214662]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  229.219779]  ? ___ratelimit+0x3b9/0x672
[  229.223754]  ? idr_get_free+0xf70/0xf70
[  229.227726]  ? kasan_check_read+0x11/0x20
[  229.231872]  ? do_raw_spin_unlock+0xa7/0x330
[  229.236291]  oom_kill_process.cold.27+0x10/0x903
[  229.241046]  ? zap_class+0x640/0x640
[  229.244760]  ? _raw_spin_unlock+0x2c/0x50
[  229.248905]  ? oom_badness+0xe6/0xaa0
[  229.252705]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  229.257640]  ? kasan_check_read+0x11/0x20
[  229.261797]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  229.267090]  ? oom_evaluate_task+0x540/0x540
[  229.271501]  ? find_held_lock+0x36/0x1c0
[  229.275565]  ? out_of_memory+0x974/0x1430
[  229.279712]  ? lock_downgrade+0x900/0x900
[  229.283857]  ? check_preemption_disabled+0x48/0x280
[  229.288876]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  229.293801]  ? kasan_check_read+0x11/0x20
[  229.297948]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  229.303222]  ? rcu_softirq_qs+0x20/0x20
[  229.307210]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  229.312745]  ? oom_evaluate_task+0x302/0x540
[  229.317164]  out_of_memory+0xa84/0x1430
[  229.321144]  ? oom_killer_disable+0x3a0/0x3a0
[  229.325651]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  229.330585]  ? __ww_mutex_check_waiters+0x160/0x160
[  229.335617]  __alloc_pages_slowpath+0x232c/0x2de0
[  229.340496]  ? warn_alloc+0x120/0x120
[  229.344294]  ? mark_held_locks+0x130/0x130
[  229.348531]  ? find_get_entry+0xaae/0x1120
[  229.352774]  ? filemap_map_pages+0x1a20/0x1a20
[  229.357362]  ? zap_class+0x640/0x640
[  229.361094]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  229.366646]  ? check_preemption_disabled+0x48/0x280
[  229.371681]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  229.377229]  ? should_fail+0x22d/0xd01
[  229.381118]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  229.386239]  ? zap_class+0x640/0x640
[  229.389976]  ? __lock_is_held+0xb5/0x140
[  229.394047]  ? mark_held_locks+0x130/0x130
[  229.398293]  ? lock_release+0xa00/0xa00
[  229.402267]  ? perf_trace_sched_process_exec+0x860/0x860
[  229.407716]  ? xa_load+0x2ba/0x460
[  229.411252]  ? lock_downgrade+0x900/0x900
[  229.415401]  ? __might_sleep+0x95/0x190
[  229.419384]  __alloc_pages_nodemask+0xad8/0xea0
[  229.424076]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  229.429107]  ? __page_cache_alloc+0x191/0x5c0
[  229.433597]  ? xa_load+0x2e1/0x460
[  229.437145]  ? xa_clear_mark+0x40/0x40
[  229.441052]  ? zap_class+0x640/0x640
[  229.444772]  ? zap_class+0x640/0x640
[  229.448483]  ? zap_class+0x640/0x640
[  229.452197]  ? __do_page_cache_readahead+0x663/0x810
[  229.457309]  ? find_held_lock+0x36/0x1c0
[  229.461375]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  229.466917]  alloc_pages_current+0x173/0x350
[  229.471331]  __page_cache_alloc+0x38c/0x5c0
[  229.475655]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  229.480639]  ? kasan_check_read+0x11/0x20
[  229.484794]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  229.490071]  ? generic_perform_write+0x6a0/0x6a0
[  229.494825]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  229.500365]  ? check_preemption_disabled+0x48/0x280
[  229.505401]  filemap_fault+0x1595/0x25f0
[  229.509488]  ? __lock_page_or_retry+0xa00/0xa00
[  229.514164]  ? mark_held_locks+0x130/0x130
[  229.518407]  ? filemap_map_pages+0xd6b/0x1a20
[  229.522905]  ? lock_downgrade+0x900/0x900
[  229.527065]  ? check_preemption_disabled+0x48/0x280
[  229.532079]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  229.537003]  ? kasan_check_read+0x11/0x20
[  229.541172]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  229.546463]  ? rcu_softirq_qs+0x20/0x20
[  229.550447]  ? filemap_map_pages+0xd92/0x1a20
[  229.554954]  ? find_get_entries_tag+0x1400/0x1400
[  229.559817]  ? debug_object_destroy+0x2b0/0x2b0
[  229.564489]  ? lock_pi_update_atomic+0x150/0x150
[  229.569247]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  229.574798]  ? lock_acquire+0x1ed/0x520
[  229.578769]  ? ext4_filemap_fault+0x7a/0xad
[  229.583098]  ? lock_release+0xa00/0xa00
[  229.587072]  ? perf_trace_sched_process_exec+0x860/0x860
[  229.592525]  ? print_usage_bug+0xc0/0xc0
[  229.596588]  ? print_usage_bug+0xc0/0xc0
[  229.600666]  ? down_read+0x8d/0x120
[  229.604289]  ? ext4_filemap_fault+0x7a/0xad
[  229.608606]  ? __down_interruptible+0x700/0x700
[  229.613304]  ext4_filemap_fault+0x82/0xad
[  229.617455]  __do_fault+0x100/0x6b0
[  229.621087]  ? pmd_devmap_trans_unstable+0x220/0x220
[  229.626191]  ? mark_held_locks+0x130/0x130
[  229.630427]  ? mark_held_locks+0x130/0x130
[  229.634660]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  229.639463]  ? retint_kernel+0x2d/0x2d
[  229.643354]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  229.648897]  __handle_mm_fault+0x3ea0/0x5be0
[  229.653307]  ? perf_trace_lock+0x7a0/0x7a0
[  229.657563]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  229.662411]  ? __switch_to_asm+0x34/0x70
[  229.666470]  ? __switch_to_asm+0x34/0x70
[  229.670543]  ? zap_class+0x640/0x640
[  229.674255]  ? zap_class+0x640/0x640
[  229.677965]  ? __x64_sys_futex+0x53e/0x6a0
[  229.682207]  ? find_held_lock+0x36/0x1c0
[  229.686276]  ? handle_mm_fault+0x42a/0xc70
[  229.690514]  ? lock_downgrade+0x900/0x900
[  229.694666]  ? check_preemption_disabled+0x48/0x280
[  229.699702]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  229.704637]  ? kasan_check_read+0x11/0x20
[  229.708787]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  229.714060]  ? rcu_softirq_qs+0x20/0x20
[  229.718036]  ? trace_hardirqs_off_caller+0x310/0x310
[  229.723141]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  229.728683]  ? check_preemption_disabled+0x48/0x280
[  229.733703]  handle_mm_fault+0x54f/0xc70
[  229.737767]  ? __handle_mm_fault+0x5be0/0x5be0
[  229.742369]  ? find_vma+0x34/0x190
[  229.745915]  __do_page_fault+0x5e8/0xe60
[  229.749972]  ? trace_hardirqs_off+0xb8/0x310
[  229.754386]  do_page_fault+0xf2/0x7e0
[  229.758195]  ? vmalloc_sync_all+0x30/0x30
[  229.762338]  ? error_entry+0x70/0xd0
[  229.766054]  ? trace_hardirqs_off_caller+0xbb/0x310
[  229.771070]  ? trace_hardirqs_on_caller+0xc0/0x310
[  229.775998]  ? syscall_return_slowpath+0x5e0/0x5e0
[  229.780925]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  229.785766]  ? trace_hardirqs_on_caller+0x310/0x310
[  229.790780]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  229.796231]  ? prepare_exit_to_usermode+0x291/0x3b0
[  229.801242]  ? page_fault+0x8/0x30
[  229.804782]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  229.809637]  ? page_fault+0x8/0x30
[  229.813183]  page_fault+0x1e/0x30
[  229.816642] RIP: 0033:0x4290d7
[  229.819847] Code: Bad RIP value.
[  229.823207] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  229.828564] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  229.835846] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  229.843111] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  229.850374] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  229.857645] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  229.864936] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  229.865017] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  229.872207] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  229.872212] Call Trace:
[  229.872218]  <IRQ>
[  229.872235]  dump_stack+0x244/0x39d
[  229.872253]  ? dump_stack_print_info.cold.1+0x20/0x20
[  229.878776] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  229.888078]  warn_alloc.cold.116+0xb7/0x1bd
[  229.890657] syz-fuzzer cpuset=/ mems_allowed=0
[  229.892815]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  229.925513]  ? lock_downgrade+0x900/0x900
[  229.929673]  ? trace_hardirqs_off+0xb8/0x310
[  229.934088]  ? trace_hardirqs_off+0xb8/0x310
[  229.938518]  __alloc_pages_slowpath+0x2651/0x2de0
[  229.943393]  ? warn_alloc+0x120/0x120
[  229.947205]  ? print_usage_bug+0xc0/0xc0
[  229.951266]  ? warn_alloc+0x120/0x120
[  229.955091]  ? warn_alloc+0x120/0x120
[  229.958899]  ? print_usage_bug+0xc0/0xc0
[  229.962964]  ? print_usage_bug+0xc0/0xc0
[  229.967038]  ? __lock_acquire+0x62f/0x4c20
[  229.971272]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  229.976809]  ? should_fail+0x22d/0xd01
[  229.980713]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  229.985833]  ? __lock_acquire+0x62f/0x4c20
[  229.990075]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  229.995172]  ? __lock_acquire+0x62f/0x4c20
[  229.999419]  ? should_fail+0x22d/0xd01
[  230.003318]  ? find_held_lock+0x36/0x1c0
[  230.007384]  ? mark_held_locks+0x130/0x130
[  230.011626]  ? mark_held_locks+0x130/0x130
[  230.015869]  ? zap_class+0x640/0x640
[  230.019582]  ? zap_class+0x640/0x640
[  230.023298]  ? print_usage_bug+0xc0/0xc0
[  230.027355]  ? do_raw_spin_unlock+0xa7/0x330
[  230.031780]  ? zap_class+0x640/0x640
[  230.035492]  ? print_usage_bug+0xc0/0xc0
[  230.039557]  ? wq_watchdog_touch+0x9c/0xfe
[  230.043797]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.049350]  ? check_preemption_disabled+0x48/0x280
[  230.054374]  ? __lock_is_held+0xb5/0x140
[  230.058451]  __alloc_pages_nodemask+0xad8/0xea0
[  230.063129]  ? zap_class+0x640/0x640
[  230.066865]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  230.071893]  ? find_held_lock+0x36/0x1c0
[  230.075961]  ? ____cache_alloc_node+0x1c7/0x1e0
[  230.080634]  ? lock_downgrade+0x900/0x900
[  230.084793]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.090368]  cache_grow_begin+0xa5/0x8c0
[  230.094434]  ? do_raw_spin_unlock+0xa7/0x330
[  230.098851]  fallback_alloc+0x204/0x2e0
[  230.102834]  ____cache_alloc_node+0x1c7/0x1e0
[  230.107331]  kmem_cache_alloc_node+0xe3/0x730
[  230.111828]  ? ipv6_get_ifaddr+0x42e/0x620
[  230.116070]  __alloc_skb+0x119/0x770
[  230.119779]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  230.125061]  ? netdev_alloc_frag+0x1f0/0x1f0
[  230.129466]  ? lock_downgrade+0x900/0x900
[  230.133621]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.139184]  ? refcount_sub_and_test_checked+0x203/0x310
[  230.144645]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  230.150132]  ? addrconf_rs_timer+0x690/0x690
[  230.154568]  ndisc_alloc_skb+0x144/0x340
[  230.158644]  ndisc_send_rs+0x331/0x6e0
[  230.162545]  addrconf_rs_timer+0x314/0x690
[  230.166785]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  230.171028]  call_timer_fn+0x272/0x920
[  230.174919]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  230.179153]  ? process_timeout+0x40/0x40
[  230.183223]  ? __run_timers+0x7da/0xc70
[  230.187230]  ? _raw_spin_unlock_irq+0x27/0x80
[  230.191726]  ? _raw_spin_unlock_irq+0x27/0x80
[  230.196221]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  230.200473]  ? lockdep_hardirqs_on+0x296/0x5b0
[  230.205113]  ? trace_hardirqs_on+0xbd/0x310
[  230.209431]  ? kasan_check_read+0x11/0x20
[  230.213580]  ? __run_timers+0x7da/0xc70
[  230.217587]  ? trace_hardirqs_off_caller+0x310/0x310
[  230.222690]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  230.226931]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  230.231165]  __run_timers+0x7e5/0xc70
[  230.234976]  ? timer_fixup_init+0x70/0x70
[  230.239127]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  230.244142]  ? zap_class+0x640/0x640
[  230.247863]  ? enqueue_hrtimer+0x1a5/0x560
[  230.252100]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  230.257314]  ? find_held_lock+0x36/0x1c0
[  230.261382]  ? zap_class+0x640/0x640
[  230.265101]  ? pvclock_read_flags+0x160/0x160
[  230.269602]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.275161]  ? check_preemption_disabled+0x48/0x280
[  230.280204]  ? __lock_is_held+0xb5/0x140
[  230.284263]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.289802]  ? check_preemption_disabled+0x48/0x280
[  230.294822]  run_timer_softirq+0x52/0xb0
[  230.298883]  ? rcu_read_lock_sched_held+0x14f/0x180
[  230.303901]  __do_softirq+0x308/0xb7e
[  230.307707]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  230.312202]  ? lock_downgrade+0x900/0x900
[  230.316356]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  230.321466]  ? pvclock_read_flags+0x160/0x160
[  230.325963]  ? lapic_next_event+0x5a/0x90
[  230.330115]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.335669]  ? kvm_clock_read+0x18/0x30
[  230.339656]  ? kvm_sched_clock_read+0x9/0x20
[  230.344069]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.349607]  ? check_preemption_disabled+0x48/0x280
[  230.354656]  irq_exit+0x17f/0x1c0
[  230.358134]  smp_apic_timer_interrupt+0x1cb/0x760
[  230.363006]  ? smp_reschedule_interrupt+0x109/0x650
[  230.368036]  ? smp_call_function_single_interrupt+0x650/0x650
[  230.373922]  ? interrupt_entry+0xb5/0xc0
[  230.377982]  ? trace_hardirqs_off_caller+0xbb/0x310
[  230.382996]  ? trace_hardirqs_off_caller+0xbb/0x310
[  230.388055]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  230.392901]  ? trace_hardirqs_on_caller+0x310/0x310
[  230.397917]  ? trace_hardirqs_on_caller+0x310/0x310
[  230.402933]  ? task_prio+0x50/0x50
[  230.406472]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.412011]  ? check_preemption_disabled+0x48/0x280
[  230.417033]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  230.421884]  apic_timer_interrupt+0xf/0x20
[  230.426123]  </IRQ>
[  230.428363] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  230.433297] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  230.452227] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  230.459962] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  230.467241] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  230.474509] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  230.481772] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  230.489036] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  230.496335]  skb_clone+0x1bb/0x500
[  230.499879]  ? skb_split+0x11e0/0x11e0
[  230.503767]  ? preempt_notifier_register+0x200/0x200
[  230.508865]  ? __switch_to_asm+0x34/0x70
[  230.512937]  ? __switch_to_asm+0x34/0x70
[  230.516993]  ? __switch_to_asm+0x40/0x70
[  230.521052]  ? __switch_to_asm+0x34/0x70
[  230.525109]  ? __switch_to_asm+0x40/0x70
[  230.529170]  ? __switch_to_asm+0x40/0x70
[  230.533229]  ? __switch_to_asm+0x34/0x70
[  230.537286]  ? __switch_to_asm+0x34/0x70
[  230.541344]  ? __switch_to_asm+0x40/0x70
[  230.545431]  ? __switch_to_asm+0x34/0x70
[  230.549497]  bpf_clone_redirect+0xb9/0x490
[  230.553740]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  230.558763]  ? __sched_text_start+0x8/0x8
[  230.562912]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  230.567492]  ? retint_kernel+0x2d/0x2d
[  230.571382]  ? trace_hardirqs_on_caller+0xc0/0x310
[  230.576319]  ? find_held_lock+0x36/0x1c0
[  230.580401]  ? lock_acquire+0x1ed/0x520
[  230.584377]  ? bpf_test_run+0x3cb/0x780
[  230.588351]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.593906]  ? check_preemption_disabled+0x48/0x280
[  230.598926]  ? kasan_check_read+0x11/0x20
[  230.603087]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  230.608359]  ? rcu_softirq_qs+0x20/0x20
[  230.612332]  ? preempt_schedule+0x4d/0x60
[  230.616476]  ? ___preempt_schedule+0x16/0x18
[  230.621387]  ? bpf_test_run+0x25d/0x780
[  230.625373]  ? netlink_diag_dump+0x2a0/0x2a0
[  230.629788]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  230.635324]  ? bpf_test_init.isra.10+0x70/0x100
[  230.640017]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  230.644796]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  230.649647]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  230.655187]  ? fput+0x130/0x1a0
[  230.658469]  ? __bpf_prog_get+0x9b/0x290
[  230.662529]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  230.667389]  ? bpf_prog_test_run+0x130/0x1a0
[  230.671801]  ? __x64_sys_bpf+0x3db/0x520
[  230.675878]  ? bpf_prog_get+0x20/0x20
[  230.679706]  ? do_syscall_64+0x1b9/0x820
[  230.683762]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  230.689124]  ? syscall_return_slowpath+0x5e0/0x5e0
[  230.694068]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  230.698914]  ? trace_hardirqs_on_caller+0x310/0x310
[  230.703927]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  230.708945]  ? prepare_exit_to_usermode+0x291/0x3b0
[  230.713981]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  230.718833]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  230.724212] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  230.724217] warn_alloc_show_mem: 1 callbacks suppressed
[  230.724224] Mem-Info:
[  230.731228] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  230.736594] active_anon:57128 inactive_anon:971 isolated_anon:0
[  230.736594]  active_file:40 inactive_file:20 isolated_file:0
[  230.736594]  unevictable:0 dirty:11 writeback:0 unstable:0
[  230.736594]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  230.736594]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  230.736594]  free:13615 free_pcp:64 free_cma:0
[  230.738963] Call Trace:
[  230.748349] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  230.781775]  <IRQ>
[  230.784344] 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
[  230.812273]  dump_stack+0x244/0x39d
[  230.814396] lowmem_reserve[]: 0 2818 6321 6321
[  230.840499]  ? dump_stack_print_info.cold.1+0x20/0x20
[  230.844097] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  230.848684]  warn_alloc.cold.116+0xb7/0x1bd
[  230.853832] lowmem_reserve[]: 0 0 3503 3503
[  230.881331]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  230.885625] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  230.889952]  ? lock_downgrade+0x900/0x900
[  230.894767] lowmem_reserve[]: 0 0 0 0
[  230.923912]  ? trace_hardirqs_off+0xb8/0x310
[  230.928047] 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
[  230.931843]  ? trace_hardirqs_off+0xb8/0x310
[  230.936222] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  230.949742]  __alloc_pages_slowpath+0x2651/0x2de0
[  230.954122] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  230.969226]  ? warn_alloc+0x120/0x120
[  230.974026] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  230.989535]  ? print_usage_bug+0xc0/0xc0
[  230.993313] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  231.002156]  ? warn_alloc+0x120/0x120
[  231.006205] 5171 total pagecache pages
[  231.014769]  ? warn_alloc+0x120/0x120
[  231.018564] 0 pages in swap cache
[  231.022440]  ? print_usage_bug+0xc0/0xc0
[  231.026223] Swap cache stats: add 0, delete 0, find 0/0
[  231.029685]  ? print_usage_bug+0xc0/0xc0
[  231.033726] Free swap  = 0kB
[  231.039081]  ? __lock_acquire+0x62f/0x4c20
[  231.043133] Total swap = 0kB
[  231.046203]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  231.050411] 1965979 pages RAM
[  231.053426]  ? should_fail+0x22d/0xd01
[  231.058948] 0 pages HighMem/MovableOnly
[  231.062060]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  231.065934] 342854 pages reserved
[  231.069901]  ? __lock_acquire+0x62f/0x4c20
[  231.074976] 0 pages cma reserved
[  231.078424]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  231.082708] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  231.085991]  ? __lock_acquire+0x62f/0x4c20
[  231.086007]  ? should_fail+0x22d/0xd01
[  231.091174] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  231.097576]  ? find_held_lock+0x36/0x1c0
[  231.101787] syz-executor2 cpuset=syz2 mems_allowed=0
[  231.105671]  ? mark_held_locks+0x130/0x130
[  231.129507]  ? mark_held_locks+0x130/0x130
[  231.133737]  ? zap_class+0x640/0x640
[  231.137451]  ? zap_class+0x640/0x640
[  231.141183]  ? print_usage_bug+0xc0/0xc0
[  231.145239]  ? do_raw_spin_unlock+0xa7/0x330
[  231.149663]  ? zap_class+0x640/0x640
[  231.153376]  ? print_usage_bug+0xc0/0xc0
[  231.157437]  ? wq_watchdog_touch+0x9c/0xfe
[  231.161675]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  231.167228]  ? check_preemption_disabled+0x48/0x280
[  231.172250]  ? __lock_is_held+0xb5/0x140
[  231.176313]  __alloc_pages_nodemask+0xad8/0xea0
[  231.180978]  ? zap_class+0x640/0x640
[  231.184697]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  231.189725]  ? find_held_lock+0x36/0x1c0
[  231.193807]  ? ____cache_alloc_node+0x1c7/0x1e0
[  231.198480]  ? lock_downgrade+0x900/0x900
[  231.202642]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  231.208185]  cache_grow_begin+0xa5/0x8c0
[  231.212245]  ? do_raw_spin_unlock+0xa7/0x330
[  231.216674]  fallback_alloc+0x204/0x2e0
[  231.220658]  ____cache_alloc_node+0x1c7/0x1e0
[  231.225164]  kmem_cache_alloc_node+0xe3/0x730
[  231.229666]  ? ipv6_get_ifaddr+0x42e/0x620
[  231.233917]  __alloc_skb+0x119/0x770
[  231.237639]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  231.242924]  ? netdev_alloc_frag+0x1f0/0x1f0
[  231.247333]  ? lock_downgrade+0x900/0x900
[  231.251502]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  231.257039]  ? refcount_sub_and_test_checked+0x203/0x310
[  231.262490]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  231.267943]  ? addrconf_rs_timer+0x690/0x690
[  231.272375]  ndisc_alloc_skb+0x144/0x340
[  231.276441]  ndisc_send_rs+0x331/0x6e0
[  231.280334]  addrconf_rs_timer+0x314/0x690
[  231.284591]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  231.288838]  call_timer_fn+0x272/0x920
[  231.292726]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  231.296964]  ? process_timeout+0x40/0x40
[  231.301034]  ? mark_held_locks+0xc7/0x130
[  231.305184]  ? _raw_spin_unlock_irq+0x27/0x80
[  231.309675]  ? _raw_spin_unlock_irq+0x27/0x80
[  231.314169]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  231.318405]  ? lockdep_hardirqs_on+0x296/0x5b0
[  231.322988]  ? trace_hardirqs_on+0xbd/0x310
[  231.327309]  ? kasan_check_read+0x11/0x20
[  231.331451]  ? __run_timers+0x7da/0xc70
[  231.335422]  ? trace_hardirqs_off_caller+0x310/0x310
[  231.340544]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  231.344781]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  231.349030]  __run_timers+0x7e5/0xc70
[  231.352856]  ? timer_fixup_init+0x70/0x70
[  231.357006]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  231.362024]  ? zap_class+0x640/0x640
[  231.365756]  ? print_usage_bug+0xc0/0xc0
[  231.369827]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  231.375021]  ? find_held_lock+0x36/0x1c0
[  231.379088]  ? zap_class+0x640/0x640
[  231.382821]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  231.388359]  ? check_preemption_disabled+0x48/0x280
[  231.393393]  ? __lock_is_held+0xb5/0x140
[  231.397457]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  231.402994]  ? check_preemption_disabled+0x48/0x280
[  231.408013]  run_timer_softirq+0x52/0xb0
[  231.412087]  ? rcu_read_lock_sched_held+0x14f/0x180
[  231.417105]  __do_softirq+0x308/0xb7e
[  231.420909]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  231.425421]  ? lock_downgrade+0x900/0x900
[  231.429570]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  231.434680]  ? pvclock_read_flags+0x160/0x160
[  231.439184]  ? lapic_next_event+0x5a/0x90
[  231.443335]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  231.448875]  ? kvm_clock_read+0x18/0x30
[  231.452846]  ? kvm_sched_clock_read+0x9/0x20
[  231.457263]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  231.462800]  ? check_preemption_disabled+0x48/0x280
[  231.467847]  irq_exit+0x17f/0x1c0
[  231.471301]  smp_apic_timer_interrupt+0x1cb/0x760
[  231.476139]  ? smp_reschedule_interrupt+0x109/0x650
[  231.481176]  ? smp_call_function_single_interrupt+0x650/0x650
[  231.487065]  ? interrupt_entry+0xb5/0xc0
[  231.491129]  ? trace_hardirqs_off_caller+0xbb/0x310
[  231.496145]  ? trace_hardirqs_off_caller+0xbb/0x310
[  231.501169]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  231.506015]  ? trace_hardirqs_on_caller+0x310/0x310
[  231.511032]  ? trace_hardirqs_on_caller+0x310/0x310
[  231.516045]  ? task_prio+0x50/0x50
[  231.519590]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  231.525128]  ? check_preemption_disabled+0x48/0x280
[  231.530173]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  231.535026]  apic_timer_interrupt+0xf/0x20
[  231.539253]  </IRQ>
[  231.541495] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  231.546688] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  231.565585] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  231.573287] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  231.580550] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  231.587818] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  231.595083] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  231.602361] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  231.609675]  retint_kernel+0x1b/0x2d
[  231.613393] RIP: 0010:dump_stack+0x358/0x39d
[  231.617798] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  231.636693] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  231.644398] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  231.651690] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  231.658959] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  231.666223] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  231.673491] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  231.680773]  ? dump_stack+0x34f/0x39d
[  231.684585]  ? dump_stack_print_info.cold.1+0x20/0x20
[  231.689777]  ? mark_held_locks+0x130/0x130
[  231.694009]  ? mark_held_locks+0x130/0x130
[  231.698261]  dump_header+0x27b/0xf72
[  231.702010]  ? pagefault_out_of_memory+0x197/0x197
[  231.706944]  ? __lock_acquire+0x62f/0x4c20
[  231.711213]  ? print_usage_bug+0xc0/0xc0
[  231.715294]  ? zap_class+0x640/0x640
[  231.719005]  ? print_usage_bug+0xc0/0xc0
[  231.723061]  ? print_usage_bug+0xc0/0xc0
[  231.727130]  ? print_usage_bug+0xc0/0xc0
[  231.731220]  ? find_held_lock+0x36/0x1c0
[  231.735304]  ? mark_held_locks+0xc7/0x130
[  231.739453]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  231.744562]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  231.749679]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  231.754262]  ? trace_hardirqs_on+0xbd/0x310
[  231.758582]  ? kasan_check_read+0x11/0x20
[  231.762728]  ? ___ratelimit+0x3b4/0x672
[  231.766703]  ? trace_hardirqs_off_caller+0x310/0x310
[  231.771819]  ? trace_hardirqs_on+0x310/0x310
[  231.776226]  ? lock_downgrade+0x900/0x900
[  231.780379]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  231.785479]  ? ___ratelimit+0x3b9/0x672
[  231.789452]  ? idr_get_free+0xf70/0xf70
[  231.793425]  ? kasan_check_read+0x11/0x20
[  231.797569]  ? do_raw_spin_unlock+0xa7/0x330
[  231.801986]  oom_kill_process.cold.27+0x10/0x903
[  231.806748]  ? zap_class+0x640/0x640
[  231.810464]  ? _raw_spin_unlock+0x2c/0x50
[  231.814610]  ? oom_badness+0xe6/0xaa0
[  231.818413]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  231.823337]  ? kasan_check_read+0x11/0x20
[  231.827484]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  231.832759]  ? oom_evaluate_task+0x540/0x540
[  231.837175]  ? find_held_lock+0x36/0x1c0
[  231.841239]  ? out_of_memory+0x974/0x1430
[  231.845405]  ? lock_downgrade+0x900/0x900
[  231.849549]  ? check_preemption_disabled+0x48/0x280
[  231.854567]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  231.859496]  ? kasan_check_read+0x11/0x20
[  231.863650]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  231.868922]  ? rcu_softirq_qs+0x20/0x20
[  231.872915]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  231.878456]  ? oom_evaluate_task+0x302/0x540
[  231.882866]  out_of_memory+0xa84/0x1430
[  231.886847]  ? oom_killer_disable+0x3a0/0x3a0
[  231.891341]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  231.896271]  ? __ww_mutex_check_waiters+0x160/0x160
[  231.901310]  __alloc_pages_slowpath+0x232c/0x2de0
[  231.906197]  ? warn_alloc+0x120/0x120
[  231.909992]  ? mark_held_locks+0x130/0x130
[  231.914228]  ? find_get_entry+0xaae/0x1120
[  231.918476]  ? filemap_map_pages+0x1a20/0x1a20
[  231.923064]  ? zap_class+0x640/0x640
[  231.926780]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  231.932321]  ? check_preemption_disabled+0x48/0x280
[  231.937338]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  231.942878]  ? should_fail+0x22d/0xd01
[  231.946775]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  231.951885]  ? zap_class+0x640/0x640
[  231.955620]  ? __lock_is_held+0xb5/0x140
[  231.959698]  ? mark_held_locks+0x130/0x130
[  231.963937]  ? lock_release+0xa00/0xa00
[  231.967912]  ? perf_trace_sched_process_exec+0x860/0x860
[  231.973356]  ? xa_load+0x2ba/0x460
[  231.976892]  ? lock_downgrade+0x900/0x900
[  231.981042]  ? __might_sleep+0x95/0x190
[  231.985015]  __alloc_pages_nodemask+0xad8/0xea0
[  231.989700]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  231.994719]  ? __page_cache_alloc+0x191/0x5c0
[  231.999211]  ? xa_load+0x2e1/0x460
[  232.002748]  ? xa_clear_mark+0x40/0x40
[  232.006649]  ? zap_class+0x640/0x640
[  232.010369]  ? zap_class+0x640/0x640
[  232.014079]  ? zap_class+0x640/0x640
[  232.017791]  ? __do_page_cache_readahead+0x663/0x810
[  232.022919]  ? find_held_lock+0x36/0x1c0
[  232.026982]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  232.032527]  alloc_pages_current+0x173/0x350
[  232.036962]  __page_cache_alloc+0x38c/0x5c0
[  232.041280]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  232.046217]  ? kasan_check_read+0x11/0x20
[  232.050362]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  232.055645]  ? generic_perform_write+0x6a0/0x6a0
[  232.060401]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  232.065936]  ? check_preemption_disabled+0x48/0x280
[  232.070960]  filemap_fault+0x1595/0x25f0
[  232.075045]  ? __lock_page_or_retry+0xa00/0xa00
[  232.079731]  ? mark_held_locks+0x130/0x130
[  232.083972]  ? filemap_map_pages+0xd6b/0x1a20
[  232.088467]  ? lock_downgrade+0x900/0x900
[  232.092615]  ? check_preemption_disabled+0x48/0x280
[  232.097650]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  232.102581]  ? kasan_check_read+0x11/0x20
[  232.106726]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  232.111999]  ? rcu_softirq_qs+0x20/0x20
[  232.116000]  ? filemap_map_pages+0xd92/0x1a20
[  232.120507]  ? find_get_entries_tag+0x1400/0x1400
[  232.125385]  ? debug_object_destroy+0x2b0/0x2b0
[  232.130055]  ? lock_pi_update_atomic+0x150/0x150
[  232.134811]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.140358]  ? lock_acquire+0x1ed/0x520
[  232.144331]  ? ext4_filemap_fault+0x7a/0xad
[  232.148668]  ? lock_release+0xa00/0xa00
[  232.152648]  ? perf_trace_sched_process_exec+0x860/0x860
[  232.158128]  ? print_usage_bug+0xc0/0xc0
[  232.162206]  ? print_usage_bug+0xc0/0xc0
[  232.166276]  ? down_read+0x8d/0x120
[  232.169897]  ? ext4_filemap_fault+0x7a/0xad
[  232.174216]  ? __down_interruptible+0x700/0x700
[  232.178893]  ext4_filemap_fault+0x82/0xad
[  232.183045]  __do_fault+0x100/0x6b0
[  232.186694]  ? pmd_devmap_trans_unstable+0x220/0x220
[  232.191799]  ? mark_held_locks+0x130/0x130
[  232.196037]  ? mark_held_locks+0x130/0x130
[  232.200299]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  232.205081]  ? retint_kernel+0x2d/0x2d
[  232.208985]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  232.214529]  __handle_mm_fault+0x3ea0/0x5be0
[  232.218933]  ? perf_trace_lock+0x7a0/0x7a0
[  232.223180]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  232.228029]  ? __switch_to_asm+0x34/0x70
[  232.232105]  ? __switch_to_asm+0x34/0x70
[  232.236184]  ? zap_class+0x640/0x640
[  232.239898]  ? zap_class+0x640/0x640
[  232.243610]  ? __x64_sys_futex+0x53e/0x6a0
[  232.247859]  ? find_held_lock+0x36/0x1c0
[  232.251930]  ? handle_mm_fault+0x42a/0xc70
[  232.256170]  ? lock_downgrade+0x900/0x900
[  232.260314]  ? check_preemption_disabled+0x48/0x280
[  232.265332]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  232.270270]  ? kasan_check_read+0x11/0x20
[  232.274430]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  232.279744]  ? rcu_softirq_qs+0x20/0x20
[  232.283727]  ? trace_hardirqs_off_caller+0x310/0x310
[  232.288829]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  232.294365]  ? check_preemption_disabled+0x48/0x280
[  232.299389]  handle_mm_fault+0x54f/0xc70
[  232.303451]  ? __handle_mm_fault+0x5be0/0x5be0
[  232.308036]  ? find_vma+0x34/0x190
[  232.311580]  __do_page_fault+0x5e8/0xe60
[  232.315648]  ? trace_hardirqs_off+0xb8/0x310
[  232.320066]  do_page_fault+0xf2/0x7e0
[  232.323868]  ? vmalloc_sync_all+0x30/0x30
[  232.328015]  ? error_entry+0x70/0xd0
[  232.331729]  ? trace_hardirqs_off_caller+0xbb/0x310
[  232.336744]  ? trace_hardirqs_on_caller+0xc0/0x310
[  232.341673]  ? syscall_return_slowpath+0x5e0/0x5e0
[  232.346602]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  232.351452]  ? trace_hardirqs_on_caller+0x310/0x310
[  232.356463]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  232.361932]  ? prepare_exit_to_usermode+0x291/0x3b0
[  232.366950]  ? page_fault+0x8/0x30
[  232.370491]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  232.375334]  ? page_fault+0x8/0x30
[  232.378873]  page_fault+0x1e/0x30
[  232.382325] RIP: 0033:0x4290d7
[  232.385526] Code: Bad RIP value.
[  232.388887] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  232.394244] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  232.401537] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  232.408811] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  232.416086] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  232.423352] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  232.430648] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  232.430714] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  232.437926] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  232.437935] Call Trace:
[  232.444495] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  232.453756]  <IRQ>
[  232.456337] syz-fuzzer cpuset=/ mems_allowed=0
[  232.466552]  dump_stack+0x244/0x39d
[  232.476861]  ? dump_stack_print_info.cold.1+0x20/0x20
[  232.482061]  warn_alloc.cold.116+0xb7/0x1bd
[  232.486387]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  232.491232]  ? lock_downgrade+0x900/0x900
[  232.495396]  ? trace_hardirqs_off+0xb8/0x310
[  232.499812]  ? trace_hardirqs_off+0xb8/0x310
[  232.504227]  __alloc_pages_slowpath+0x2651/0x2de0
[  232.509114]  ? warn_alloc+0x120/0x120
[  232.512947]  ? print_usage_bug+0xc0/0xc0
[  232.517010]  ? warn_alloc+0x120/0x120
[  232.520815]  ? warn_alloc+0x120/0x120
[  232.524619]  ? print_usage_bug+0xc0/0xc0
[  232.528695]  ? kvm_clock_read+0x18/0x30
[  232.532675]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  232.537696]  ? print_usage_bug+0xc0/0xc0
[  232.541762]  ? __lock_acquire+0x62f/0x4c20
[  232.546002]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  232.551540]  ? should_fail+0x22d/0xd01
[  232.555423]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  232.560703]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  232.565804]  ? __lock_acquire+0x62f/0x4c20
[  232.570040]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  232.575141]  ? __lock_acquire+0x62f/0x4c20
[  232.579390]  ? should_fail+0x22d/0xd01
[  232.583274]  ? rcu_irq_exit+0x1a2/0x390
[  232.587275]  ? mark_held_locks+0x130/0x130
[  232.591511]  ? mark_held_locks+0x130/0x130
[  232.595749]  ? mark_held_locks+0xc7/0x130
[  232.599903]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  232.604927]  ? zap_class+0x640/0x640
[  232.608649]  ? print_usage_bug+0xc0/0xc0
[  232.612723]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.618281]  ? check_preemption_disabled+0x48/0x280
[  232.623756]  ? __lock_is_held+0xb5/0x140
[  232.627822]  __alloc_pages_nodemask+0xad8/0xea0
[  232.632490]  ? zap_class+0x640/0x640
[  232.636212]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  232.641241]  ? find_held_lock+0x36/0x1c0
[  232.645310]  ? ____cache_alloc_node+0x1c7/0x1e0
[  232.649981]  ? lock_downgrade+0x900/0x900
[  232.654133]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.659695]  cache_grow_begin+0xa5/0x8c0
[  232.663758]  ? do_raw_spin_unlock+0xa7/0x330
[  232.668172]  fallback_alloc+0x204/0x2e0
[  232.672177]  ____cache_alloc_node+0x1c7/0x1e0
[  232.676678]  kmem_cache_alloc_node+0xe3/0x730
[  232.681174]  ? ipv6_get_ifaddr+0x42e/0x620
[  232.685414]  __alloc_skb+0x119/0x770
[  232.689127]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  232.694407]  ? netdev_alloc_frag+0x1f0/0x1f0
[  232.698814]  ? lock_downgrade+0x900/0x900
[  232.702972]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.708513]  ? refcount_sub_and_test_checked+0x203/0x310
[  232.713970]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  232.719416]  ? addrconf_rs_timer+0x690/0x690
[  232.723850]  ndisc_alloc_skb+0x144/0x340
[  232.727914]  ndisc_send_rs+0x331/0x6e0
[  232.731807]  addrconf_rs_timer+0x314/0x690
[  232.736050]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  232.740295]  call_timer_fn+0x272/0x920
[  232.744215]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  232.748463]  ? process_timeout+0x40/0x40
[  232.752543]  ? __run_timers+0x7da/0xc70
[  232.756641]  ? _raw_spin_unlock_irq+0x27/0x80
[  232.761141]  ? _raw_spin_unlock_irq+0x27/0x80
[  232.765642]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  232.769883]  ? lockdep_hardirqs_on+0x296/0x5b0
[  232.774497]  ? trace_hardirqs_on+0xbd/0x310
[  232.778831]  ? kasan_check_read+0x11/0x20
[  232.782986]  ? __run_timers+0x7da/0xc70
[  232.786963]  ? trace_hardirqs_off_caller+0x310/0x310
[  232.792097]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  232.796337]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  232.800572]  __run_timers+0x7e5/0xc70
[  232.804378]  ? timer_fixup_init+0x70/0x70
[  232.808523]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  232.813548]  ? zap_class+0x640/0x640
[  232.817266]  ? enqueue_hrtimer+0x1a5/0x560
[  232.821505]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  232.826697]  ? find_held_lock+0x36/0x1c0
[  232.830761]  ? zap_class+0x640/0x640
[  232.834484]  ? pvclock_read_flags+0x160/0x160
[  232.838982]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.844523]  ? check_preemption_disabled+0x48/0x280
[  232.849554]  ? __lock_is_held+0xb5/0x140
[  232.853617]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.859163]  ? check_preemption_disabled+0x48/0x280
[  232.864198]  run_timer_softirq+0x52/0xb0
[  232.868260]  ? rcu_read_lock_sched_held+0x14f/0x180
[  232.873274]  __do_softirq+0x308/0xb7e
[  232.877078]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  232.881570]  ? lock_downgrade+0x900/0x900
[  232.885737]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  232.890851]  ? pvclock_read_flags+0x160/0x160
[  232.895350]  ? lapic_next_event+0x5a/0x90
[  232.899509]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.905064]  ? kvm_clock_read+0x18/0x30
[  232.909035]  ? kvm_sched_clock_read+0x9/0x20
[  232.913443]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.918993]  ? check_preemption_disabled+0x48/0x280
[  232.924017]  irq_exit+0x17f/0x1c0
[  232.927474]  smp_apic_timer_interrupt+0x1cb/0x760
[  232.932313]  ? smp_reschedule_interrupt+0x109/0x650
[  232.937327]  ? smp_call_function_single_interrupt+0x650/0x650
[  232.943214]  ? interrupt_entry+0xb5/0xc0
[  232.947278]  ? trace_hardirqs_off_caller+0xbb/0x310
[  232.952309]  ? trace_hardirqs_off_caller+0xbb/0x310
[  232.957327]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  232.962188]  ? trace_hardirqs_on_caller+0x310/0x310
[  232.967230]  ? trace_hardirqs_on_caller+0x310/0x310
[  232.972244]  ? task_prio+0x50/0x50
[  232.975786]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.981326]  ? check_preemption_disabled+0x48/0x280
[  232.986346]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  232.991194]  apic_timer_interrupt+0xf/0x20
[  232.995436]  </IRQ>
[  232.997678] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  233.002619] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  233.021528] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  233.029232] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  233.036499] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  233.043763] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  233.051027] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  233.058290] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  233.065593]  skb_clone+0x1bb/0x500
[  233.069135]  ? skb_split+0x11e0/0x11e0
[  233.073024]  ? preempt_notifier_register+0x200/0x200
[  233.078122]  ? __switch_to_asm+0x34/0x70
[  233.082180]  ? __switch_to_asm+0x34/0x70
[  233.086239]  ? __switch_to_asm+0x40/0x70
[  233.090310]  ? __switch_to_asm+0x34/0x70
[  233.094370]  ? __switch_to_asm+0x40/0x70
[  233.098428]  ? __switch_to_asm+0x40/0x70
[  233.102503]  ? __switch_to_asm+0x34/0x70
[  233.106558]  ? __switch_to_asm+0x34/0x70
[  233.110614]  ? __switch_to_asm+0x40/0x70
[  233.114682]  ? __switch_to_asm+0x34/0x70
[  233.118759]  bpf_clone_redirect+0xb9/0x490
[  233.123013]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  233.128046]  ? __sched_text_start+0x8/0x8
[  233.132207]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  233.136786]  ? retint_kernel+0x2d/0x2d
[  233.140671]  ? trace_hardirqs_on_caller+0xc0/0x310
[  233.145614]  ? find_held_lock+0x36/0x1c0
[  233.149742]  ? lock_acquire+0x1ed/0x520
[  233.153716]  ? bpf_test_run+0x3cb/0x780
[  233.157689]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.163225]  ? check_preemption_disabled+0x48/0x280
[  233.168249]  ? kasan_check_read+0x11/0x20
[  233.172435]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  233.177756]  ? rcu_softirq_qs+0x20/0x20
[  233.181730]  ? preempt_schedule+0x4d/0x60
[  233.185876]  ? ___preempt_schedule+0x16/0x18
[  233.190303]  ? bpf_test_run+0x25d/0x780
[  233.194301]  ? netlink_diag_dump+0x2a0/0x2a0
[  233.198730]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  233.204263]  ? bpf_test_init.isra.10+0x70/0x100
[  233.208941]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  233.213710]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  233.218560]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  233.224095]  ? fput+0x130/0x1a0
[  233.227377]  ? __bpf_prog_get+0x9b/0x290
[  233.231442]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  233.236292]  ? bpf_prog_test_run+0x130/0x1a0
[  233.240700]  ? __x64_sys_bpf+0x3db/0x520
[  233.244756]  ? bpf_prog_get+0x20/0x20
[  233.248609]  ? do_syscall_64+0x1b9/0x820
[  233.252680]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  233.258045]  ? syscall_return_slowpath+0x5e0/0x5e0
[  233.262974]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  233.267834]  ? trace_hardirqs_on_caller+0x310/0x310
[  233.272853]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  233.277869]  ? prepare_exit_to_usermode+0x291/0x3b0
[  233.282891]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  233.287740]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  233.293122] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  233.293127] warn_alloc_show_mem: 1 callbacks suppressed
[  233.293134] Mem-Info:
[  233.300159] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  233.305527] active_anon:57128 inactive_anon:971 isolated_anon:0
[  233.305527]  active_file:40 inactive_file:20 isolated_file:0
[  233.305527]  unevictable:0 dirty:11 writeback:0 unstable:0
[  233.305527]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  233.305527]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  233.305527]  free:13615 free_pcp:64 free_cma:0
[  233.307901] Call Trace:
[  233.317292] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  233.350216]  <IRQ>
[  233.352782] 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
[  233.380709]  dump_stack+0x244/0x39d
[  233.382834] lowmem_reserve[]: 0 2818 6321 6321
[  233.408937]  ? dump_stack_print_info.cold.1+0x20/0x20
[  233.412535] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  233.417113]  warn_alloc.cold.116+0xb7/0x1bd
[  233.422271] lowmem_reserve[]: 0 0 3503 3503
[  233.449759]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  233.454058] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  233.458369]  ? lock_downgrade+0x900/0x900
[  233.463181] lowmem_reserve[]: 0 0 0 0
[  233.492326]  ? trace_hardirqs_off+0xb8/0x310
[  233.496443] 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
[  233.500237]  ? trace_hardirqs_off+0xb8/0x310
[  233.504618] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  233.518145]  __alloc_pages_slowpath+0x2651/0x2de0
[  233.522524] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  233.537623]  ? warn_alloc+0x120/0x120
[  233.542422] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  233.557939]  ? print_usage_bug+0xc0/0xc0
[  233.561718] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  233.570536]  ? warn_alloc+0x120/0x120
[  233.574574] 5171 total pagecache pages
[  233.583142]  ? warn_alloc+0x120/0x120
[  233.586924] 0 pages in swap cache
[  233.590798]  ? print_usage_bug+0xc0/0xc0
[  233.594574] Swap cache stats: add 0, delete 0, find 0/0
[  233.598016]  ? kvm_clock_read+0x18/0x30
[  233.602047] Free swap  = 0kB
[  233.607401]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  233.611346] Total swap = 0kB
[  233.614355]  ? print_usage_bug+0xc0/0xc0
[  233.619346] 1965979 pages RAM
[  233.622365]  ? __lock_acquire+0x62f/0x4c20
[  233.626401] 0 pages HighMem/MovableOnly
[  233.629512]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  233.633718] 342854 pages reserved
[  233.637698]  ? should_fail+0x22d/0xd01
[  233.643224] 0 pages cma reserved
[  233.646666]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  233.646684]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  233.650607] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  233.653920]  ? __lock_acquire+0x62f/0x4c20
[  233.659221] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  233.664265]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  233.670729] syz-executor2 cpuset=syz2 mems_allowed=0
[  233.674957]  ? __lock_acquire+0x62f/0x4c20
[  233.699822]  ? should_fail+0x22d/0xd01
[  233.703723]  ? rcu_irq_exit+0x1a2/0x390
[  233.707710]  ? mark_held_locks+0x130/0x130
[  233.711964]  ? mark_held_locks+0x130/0x130
[  233.716199]  ? mark_held_locks+0xc7/0x130
[  233.720340]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  233.725382]  ? zap_class+0x640/0x640
[  233.729096]  ? print_usage_bug+0xc0/0xc0
[  233.733195]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.738766]  ? check_preemption_disabled+0x48/0x280
[  233.743794]  ? __lock_is_held+0xb5/0x140
[  233.747858]  __alloc_pages_nodemask+0xad8/0xea0
[  233.752531]  ? zap_class+0x640/0x640
[  233.756252]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  233.761279]  ? find_held_lock+0x36/0x1c0
[  233.765359]  ? ____cache_alloc_node+0x1c7/0x1e0
[  233.770030]  ? lock_downgrade+0x900/0x900
[  233.774188]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.779728]  cache_grow_begin+0xa5/0x8c0
[  233.783790]  ? do_raw_spin_unlock+0xa7/0x330
[  233.788204]  fallback_alloc+0x204/0x2e0
[  233.792188]  ____cache_alloc_node+0x1c7/0x1e0
[  233.796697]  kmem_cache_alloc_node+0xe3/0x730
[  233.801194]  ? ipv6_get_ifaddr+0x42e/0x620
[  233.805439]  __alloc_skb+0x119/0x770
[  233.809155]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  233.814434]  ? netdev_alloc_frag+0x1f0/0x1f0
[  233.818838]  ? lock_downgrade+0x900/0x900
[  233.823014]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.828551]  ? refcount_sub_and_test_checked+0x203/0x310
[  233.834006]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  233.839457]  ? addrconf_rs_timer+0x690/0x690
[  233.843892]  ndisc_alloc_skb+0x144/0x340
[  233.847972]  ndisc_send_rs+0x331/0x6e0
[  233.851864]  addrconf_rs_timer+0x314/0x690
[  233.856106]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  233.860365]  call_timer_fn+0x272/0x920
[  233.864250]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  233.868484]  ? process_timeout+0x40/0x40
[  233.872554]  ? mark_held_locks+0xc7/0x130
[  233.876713]  ? _raw_spin_unlock_irq+0x27/0x80
[  233.881209]  ? _raw_spin_unlock_irq+0x27/0x80
[  233.885731]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  233.889966]  ? lockdep_hardirqs_on+0x296/0x5b0
[  233.894547]  ? trace_hardirqs_on+0xbd/0x310
[  233.898863]  ? kasan_check_read+0x11/0x20
[  233.903006]  ? __run_timers+0x7da/0xc70
[  233.906980]  ? trace_hardirqs_off_caller+0x310/0x310
[  233.912110]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  233.916349]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  233.920638]  __run_timers+0x7e5/0xc70
[  233.924467]  ? timer_fixup_init+0x70/0x70
[  233.928616]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  233.933652]  ? zap_class+0x640/0x640
[  233.937370]  ? print_usage_bug+0xc0/0xc0
[  233.941431]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  233.946625]  ? find_held_lock+0x36/0x1c0
[  233.950710]  ? zap_class+0x640/0x640
[  233.954431]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.959974]  ? check_preemption_disabled+0x48/0x280
[  233.965001]  ? __lock_is_held+0xb5/0x140
[  233.969065]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.974602]  ? check_preemption_disabled+0x48/0x280
[  233.979640]  run_timer_softirq+0x52/0xb0
[  233.983716]  ? rcu_read_lock_sched_held+0x14f/0x180
[  233.988730]  __do_softirq+0x308/0xb7e
[  233.992534]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  233.997026]  ? lock_downgrade+0x900/0x900
[  234.001198]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  234.006311]  ? pvclock_read_flags+0x160/0x160
[  234.010813]  ? lapic_next_event+0x5a/0x90
[  234.014966]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  234.020525]  ? kvm_clock_read+0x18/0x30
[  234.024515]  ? kvm_sched_clock_read+0x9/0x20
[  234.028924]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  234.034478]  ? check_preemption_disabled+0x48/0x280
[  234.039502]  irq_exit+0x17f/0x1c0
[  234.042959]  smp_apic_timer_interrupt+0x1cb/0x760
[  234.047801]  ? smp_reschedule_interrupt+0x109/0x650
[  234.052822]  ? smp_call_function_single_interrupt+0x650/0x650
[  234.058709]  ? interrupt_entry+0xb5/0xc0
[  234.062770]  ? trace_hardirqs_off_caller+0xbb/0x310
[  234.067787]  ? trace_hardirqs_off_caller+0xbb/0x310
[  234.072806]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  234.077660]  ? trace_hardirqs_on_caller+0x310/0x310
[  234.082681]  ? trace_hardirqs_on_caller+0x310/0x310
[  234.087713]  ? task_prio+0x50/0x50
[  234.091262]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  234.096799]  ? check_preemption_disabled+0x48/0x280
[  234.101838]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  234.106687]  apic_timer_interrupt+0xf/0x20
[  234.110911]  </IRQ>
[  234.113162] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  234.118350] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  234.137245] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  234.144949] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  234.152212] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  234.159479] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  234.166744] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  234.174006] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  234.181301]  retint_kernel+0x1b/0x2d
[  234.185053] RIP: 0010:dump_stack+0x358/0x39d
[  234.189455] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  234.208352] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  234.216073] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  234.223338] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  234.230601] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  234.237873] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  234.245138] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  234.252436]  ? dump_stack+0x34f/0x39d
[  234.256277]  ? dump_stack_print_info.cold.1+0x20/0x20
[  234.261482]  ? mark_held_locks+0x130/0x130
[  234.265720]  ? mark_held_locks+0x130/0x130
[  234.269960]  dump_header+0x27b/0xf72
[  234.273686]  ? pagefault_out_of_memory+0x197/0x197
[  234.278622]  ? __lock_acquire+0x62f/0x4c20
[  234.282876]  ? print_usage_bug+0xc0/0xc0
[  234.286940]  ? zap_class+0x640/0x640
[  234.290671]  ? print_usage_bug+0xc0/0xc0
[  234.294733]  ? print_usage_bug+0xc0/0xc0
[  234.298794]  ? print_usage_bug+0xc0/0xc0
[  234.302865]  ? find_held_lock+0x36/0x1c0
[  234.306936]  ? mark_held_locks+0xc7/0x130
[  234.311086]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  234.316200]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  234.321304]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  234.325903]  ? trace_hardirqs_on+0xbd/0x310
[  234.330225]  ? kasan_check_read+0x11/0x20
[  234.334370]  ? ___ratelimit+0x3b4/0x672
[  234.338342]  ? trace_hardirqs_off_caller+0x310/0x310
[  234.343443]  ? trace_hardirqs_on+0x310/0x310
[  234.347852]  ? lock_downgrade+0x900/0x900
[  234.352003]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  234.357105]  ? ___ratelimit+0x3b9/0x672
[  234.361083]  ? idr_get_free+0xf70/0xf70
[  234.365069]  ? kasan_check_read+0x11/0x20
[  234.369216]  ? do_raw_spin_unlock+0xa7/0x330
[  234.373640]  oom_kill_process.cold.27+0x10/0x903
[  234.378395]  ? zap_class+0x640/0x640
[  234.382106]  ? _raw_spin_unlock+0x2c/0x50
[  234.386254]  ? oom_badness+0xe6/0xaa0
[  234.390052]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  234.394980]  ? kasan_check_read+0x11/0x20
[  234.399124]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  234.404412]  ? oom_evaluate_task+0x540/0x540
[  234.408828]  ? find_held_lock+0x36/0x1c0
[  234.412895]  ? out_of_memory+0x974/0x1430
[  234.417045]  ? lock_downgrade+0x900/0x900
[  234.421206]  ? check_preemption_disabled+0x48/0x280
[  234.426241]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  234.431182]  ? kasan_check_read+0x11/0x20
[  234.435331]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  234.440603]  ? rcu_softirq_qs+0x20/0x20
[  234.444588]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  234.450122]  ? oom_evaluate_task+0x302/0x540
[  234.454553]  out_of_memory+0xa84/0x1430
[  234.458547]  ? oom_killer_disable+0x3a0/0x3a0
[  234.463049]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  234.467980]  ? __ww_mutex_check_waiters+0x160/0x160
[  234.473007]  __alloc_pages_slowpath+0x232c/0x2de0
[  234.477879]  ? warn_alloc+0x120/0x120
[  234.481681]  ? mark_held_locks+0x130/0x130
[  234.485924]  ? find_get_entry+0xaae/0x1120
[  234.490185]  ? filemap_map_pages+0x1a20/0x1a20
[  234.494773]  ? zap_class+0x640/0x640
[  234.498490]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  234.504026]  ? check_preemption_disabled+0x48/0x280
[  234.509042]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  234.514611]  ? should_fail+0x22d/0xd01
[  234.518506]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  234.523608]  ? zap_class+0x640/0x640
[  234.527352]  ? __lock_is_held+0xb5/0x140
[  234.531418]  ? mark_held_locks+0x130/0x130
[  234.535663]  ? lock_release+0xa00/0xa00
[  234.539646]  ? perf_trace_sched_process_exec+0x860/0x860
[  234.545097]  ? xa_load+0x2ba/0x460
[  234.548648]  ? lock_downgrade+0x900/0x900
[  234.552816]  ? __might_sleep+0x95/0x190
[  234.556808]  __alloc_pages_nodemask+0xad8/0xea0
[  234.561483]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  234.566501]  ? __page_cache_alloc+0x191/0x5c0
[  234.570994]  ? xa_load+0x2e1/0x460
[  234.574535]  ? xa_clear_mark+0x40/0x40
[  234.578448]  ? zap_class+0x640/0x640
[  234.582176]  ? zap_class+0x640/0x640
[  234.585892]  ? zap_class+0x640/0x640
[  234.589609]  ? __do_page_cache_readahead+0x663/0x810
[  234.594722]  ? find_held_lock+0x36/0x1c0
[  234.598787]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  234.604328]  alloc_pages_current+0x173/0x350
[  234.608739]  __page_cache_alloc+0x38c/0x5c0
[  234.613060]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  234.617985]  ? kasan_check_read+0x11/0x20
[  234.622232]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  234.627525]  ? generic_perform_write+0x6a0/0x6a0
[  234.632293]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  234.637833]  ? check_preemption_disabled+0x48/0x280
[  234.642856]  filemap_fault+0x1595/0x25f0
[  234.646929]  ? __lock_page_or_retry+0xa00/0xa00
[  234.651600]  ? mark_held_locks+0x130/0x130
[  234.655849]  ? filemap_map_pages+0xd6b/0x1a20
[  234.660362]  ? lock_downgrade+0x900/0x900
[  234.664538]  ? check_preemption_disabled+0x48/0x280
[  234.669552]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  234.674482]  ? kasan_check_read+0x11/0x20
[  234.678638]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  234.683918]  ? rcu_softirq_qs+0x20/0x20
[  234.687907]  ? filemap_map_pages+0xd92/0x1a20
[  234.692418]  ? find_get_entries_tag+0x1400/0x1400
[  234.697265]  ? debug_object_destroy+0x2b0/0x2b0
[  234.701933]  ? lock_pi_update_atomic+0x150/0x150
[  234.706686]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  234.712235]  ? lock_acquire+0x1ed/0x520
[  234.716225]  ? ext4_filemap_fault+0x7a/0xad
[  234.720549]  ? lock_release+0xa00/0xa00
[  234.724525]  ? perf_trace_sched_process_exec+0x860/0x860
[  234.729973]  ? print_usage_bug+0xc0/0xc0
[  234.734045]  ? print_usage_bug+0xc0/0xc0
[  234.738109]  ? down_read+0x8d/0x120
[  234.741729]  ? ext4_filemap_fault+0x7a/0xad
[  234.746045]  ? __down_interruptible+0x700/0x700
[  234.750725]  ext4_filemap_fault+0x82/0xad
[  234.755411]  __do_fault+0x100/0x6b0
[  234.759045]  ? pmd_devmap_trans_unstable+0x220/0x220
[  234.764155]  ? mark_held_locks+0x130/0x130
[  234.768390]  ? mark_held_locks+0x130/0x130
[  234.772637]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  234.777395]  ? retint_kernel+0x2d/0x2d
[  234.781297]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  234.786851]  __handle_mm_fault+0x3ea0/0x5be0
[  234.791253]  ? perf_trace_lock+0x7a0/0x7a0
[  234.795536]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  234.800382]  ? __switch_to_asm+0x34/0x70
[  234.804438]  ? __switch_to_asm+0x34/0x70
[  234.808513]  ? zap_class+0x640/0x640
[  234.812229]  ? zap_class+0x640/0x640
[  234.815941]  ? __x64_sys_futex+0x53e/0x6a0
[  234.820184]  ? find_held_lock+0x36/0x1c0
[  234.824252]  ? handle_mm_fault+0x42a/0xc70
[  234.828487]  ? lock_downgrade+0x900/0x900
[  234.832645]  ? check_preemption_disabled+0x48/0x280
[  234.837676]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  234.842602]  ? kasan_check_read+0x11/0x20
[  234.846761]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  234.852037]  ? rcu_softirq_qs+0x20/0x20
[  234.856014]  ? trace_hardirqs_off_caller+0x310/0x310
[  234.861118]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  234.866674]  ? check_preemption_disabled+0x48/0x280
[  234.871724]  handle_mm_fault+0x54f/0xc70
[  234.875785]  ? __handle_mm_fault+0x5be0/0x5be0
[  234.880387]  ? find_vma+0x34/0x190
[  234.883929]  __do_page_fault+0x5e8/0xe60
[  234.888007]  ? trace_hardirqs_off+0xb8/0x310
[  234.892423]  do_page_fault+0xf2/0x7e0
[  234.896222]  ? vmalloc_sync_all+0x30/0x30
[  234.900367]  ? error_entry+0x70/0xd0
[  234.904084]  ? trace_hardirqs_off_caller+0xbb/0x310
[  234.909102]  ? trace_hardirqs_on_caller+0xc0/0x310
[  234.914029]  ? syscall_return_slowpath+0x5e0/0x5e0
[  234.918958]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  234.923835]  ? trace_hardirqs_on_caller+0x310/0x310
[  234.928852]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  234.934304]  ? prepare_exit_to_usermode+0x291/0x3b0
[  234.939315]  ? page_fault+0x8/0x30
[  234.942873]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  234.947720]  ? page_fault+0x8/0x30
[  234.951257]  page_fault+0x1e/0x30
[  234.954712] RIP: 0033:0x4290d7
[  234.957924] Code: Bad RIP value.
[  234.961283] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  234.966649] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  234.973914] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  234.981179] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  234.989237] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  234.996504] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  235.003796] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  235.003861] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  235.011066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  235.011071] Call Trace:
[  235.011077]  <IRQ>
[  235.011095]  dump_stack+0x244/0x39d
[  235.011114]  ? dump_stack_print_info.cold.1+0x20/0x20
[  235.017648] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  235.026936]  warn_alloc.cold.116+0xb7/0x1bd
[  235.029507] syz-fuzzer cpuset=/ mems_allowed=0
[  235.031668]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  235.064361]  ? lock_downgrade+0x900/0x900
[  235.068516]  ? trace_hardirqs_off+0xb8/0x310
[  235.072931]  ? trace_hardirqs_off+0xb8/0x310
[  235.077352]  __alloc_pages_slowpath+0x2651/0x2de0
[  235.082227]  ? warn_alloc+0x120/0x120
[  235.086047]  ? print_usage_bug+0xc0/0xc0
[  235.090119]  ? warn_alloc+0x120/0x120
[  235.093938]  ? warn_alloc+0x120/0x120
[  235.097744]  ? print_usage_bug+0xc0/0xc0
[  235.101811]  ? print_usage_bug+0xc0/0xc0
[  235.105872]  ? __lock_acquire+0x62f/0x4c20
[  235.110126]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  235.115684]  ? should_fail+0x22d/0xd01
[  235.119595]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  235.124703]  ? __lock_acquire+0x62f/0x4c20
[  235.128943]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  235.134056]  ? __lock_acquire+0x62f/0x4c20
[  235.138287]  ? should_fail+0x22d/0xd01
[  235.142176]  ? find_held_lock+0x36/0x1c0
[  235.146248]  ? mark_held_locks+0x130/0x130
[  235.150504]  ? mark_held_locks+0x130/0x130
[  235.154736]  ? zap_class+0x640/0x640
[  235.158447]  ? zap_class+0x640/0x640
[  235.162163]  ? print_usage_bug+0xc0/0xc0
[  235.166222]  ? do_raw_spin_unlock+0xa7/0x330
[  235.170626]  ? zap_class+0x640/0x640
[  235.174368]  ? print_usage_bug+0xc0/0xc0
[  235.178424]  ? wq_watchdog_touch+0x9c/0xfe
[  235.182674]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.188231]  ? check_preemption_disabled+0x48/0x280
[  235.193257]  ? __lock_is_held+0xb5/0x140
[  235.197321]  __alloc_pages_nodemask+0xad8/0xea0
[  235.201986]  ? zap_class+0x640/0x640
[  235.205701]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  235.210731]  ? find_held_lock+0x36/0x1c0
[  235.214797]  ? ____cache_alloc_node+0x1c7/0x1e0
[  235.219463]  ? lock_downgrade+0x900/0x900
[  235.223617]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.229164]  cache_grow_begin+0xa5/0x8c0
[  235.233222]  ? do_raw_spin_unlock+0xa7/0x330
[  235.237644]  fallback_alloc+0x204/0x2e0
[  235.241647]  ____cache_alloc_node+0x1c7/0x1e0
[  235.246153]  kmem_cache_alloc_node+0xe3/0x730
[  235.250709]  ? ipv6_get_ifaddr+0x42e/0x620
[  235.254970]  __alloc_skb+0x119/0x770
[  235.258698]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  235.263982]  ? netdev_alloc_frag+0x1f0/0x1f0
[  235.268391]  ? lock_downgrade+0x900/0x900
[  235.272543]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.278075]  ? refcount_sub_and_test_checked+0x203/0x310
[  235.283527]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  235.288974]  ? addrconf_rs_timer+0x690/0x690
[  235.293408]  ndisc_alloc_skb+0x144/0x340
[  235.297471]  ndisc_send_rs+0x331/0x6e0
[  235.301361]  addrconf_rs_timer+0x314/0x690
[  235.305604]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  235.309875]  call_timer_fn+0x272/0x920
[  235.313765]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  235.317996]  ? process_timeout+0x40/0x40
[  235.322063]  ? __run_timers+0x7da/0xc70
[  235.326038]  ? _raw_spin_unlock_irq+0x27/0x80
[  235.330543]  ? _raw_spin_unlock_irq+0x27/0x80
[  235.335034]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  235.339270]  ? lockdep_hardirqs_on+0x296/0x5b0
[  235.343851]  ? trace_hardirqs_on+0xbd/0x310
[  235.348168]  ? kasan_check_read+0x11/0x20
[  235.352329]  ? __run_timers+0x7da/0xc70
[  235.356300]  ? trace_hardirqs_off_caller+0x310/0x310
[  235.361404]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  235.365656]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  235.369888]  __run_timers+0x7e5/0xc70
[  235.373700]  ? timer_fixup_init+0x70/0x70
[  235.377851]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  235.382870]  ? zap_class+0x640/0x640
[  235.386585]  ? enqueue_hrtimer+0x1a5/0x560
[  235.390822]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  235.396031]  ? find_held_lock+0x36/0x1c0
[  235.400096]  ? zap_class+0x640/0x640
[  235.403811]  ? pvclock_read_flags+0x160/0x160
[  235.408310]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.413851]  ? check_preemption_disabled+0x48/0x280
[  235.418883]  ? __lock_is_held+0xb5/0x140
[  235.422943]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.428484]  ? check_preemption_disabled+0x48/0x280
[  235.433507]  run_timer_softirq+0x52/0xb0
[  235.437569]  ? rcu_read_lock_sched_held+0x14f/0x180
[  235.442589]  __do_softirq+0x308/0xb7e
[  235.446397]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  235.450893]  ? lock_downgrade+0x900/0x900
[  235.455043]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  235.460155]  ? pvclock_read_flags+0x160/0x160
[  235.464662]  ? lapic_next_event+0x5a/0x90
[  235.468815]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.474366]  ? kvm_clock_read+0x18/0x30
[  235.478365]  ? kvm_sched_clock_read+0x9/0x20
[  235.482773]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.488323]  ? check_preemption_disabled+0x48/0x280
[  235.493349]  irq_exit+0x17f/0x1c0
[  235.496979]  smp_apic_timer_interrupt+0x1cb/0x760
[  235.501821]  ? smp_reschedule_interrupt+0x109/0x650
[  235.506840]  ? smp_call_function_single_interrupt+0x650/0x650
[  235.512722]  ? interrupt_entry+0xb5/0xc0
[  235.516784]  ? trace_hardirqs_off_caller+0xbb/0x310
[  235.521796]  ? trace_hardirqs_off_caller+0xbb/0x310
[  235.526815]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  235.531669]  ? trace_hardirqs_on_caller+0x310/0x310
[  235.536684]  ? trace_hardirqs_on_caller+0x310/0x310
[  235.541699]  ? task_prio+0x50/0x50
[  235.545241]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.550778]  ? check_preemption_disabled+0x48/0x280
[  235.555799]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  235.560663]  apic_timer_interrupt+0xf/0x20
[  235.564895]  </IRQ>
[  235.567131] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  235.572065] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  235.590962] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  235.598671] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  235.605940] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  235.613205] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  235.620472] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  235.627738] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  235.635048]  skb_clone+0x1bb/0x500
[  235.638589]  ? skb_split+0x11e0/0x11e0
[  235.642479]  ? preempt_notifier_register+0x200/0x200
[  235.647577]  ? __switch_to_asm+0x34/0x70
[  235.651648]  ? __switch_to_asm+0x34/0x70
[  235.655716]  ? __switch_to_asm+0x40/0x70
[  235.659771]  ? __switch_to_asm+0x34/0x70
[  235.663827]  ? __switch_to_asm+0x40/0x70
[  235.667891]  ? __switch_to_asm+0x40/0x70
[  235.671946]  ? __switch_to_asm+0x34/0x70
[  235.676003]  ? __switch_to_asm+0x34/0x70
[  235.680086]  ? __switch_to_asm+0x40/0x70
[  235.684191]  ? __switch_to_asm+0x34/0x70
[  235.688261]  bpf_clone_redirect+0xb9/0x490
[  235.692503]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  235.697523]  ? __sched_text_start+0x8/0x8
[  235.701683]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  235.706263]  ? retint_kernel+0x2d/0x2d
[  235.710154]  ? trace_hardirqs_on_caller+0xc0/0x310
[  235.715093]  ? find_held_lock+0x36/0x1c0
[  235.719163]  ? lock_acquire+0x1ed/0x520
[  235.723139]  ? bpf_test_run+0x3cb/0x780
[  235.727115]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.732665]  ? check_preemption_disabled+0x48/0x280
[  235.737722]  ? kasan_check_read+0x11/0x20
[  235.741871]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  235.747145]  ? rcu_softirq_qs+0x20/0x20
[  235.751123]  ? preempt_schedule+0x4d/0x60
[  235.755276]  ? ___preempt_schedule+0x16/0x18
[  235.759698]  ? bpf_test_run+0x25d/0x780
[  235.763688]  ? netlink_diag_dump+0x2a0/0x2a0
[  235.768099]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  235.773644]  ? bpf_test_init.isra.10+0x70/0x100
[  235.778341]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  235.783106]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  235.787976]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  235.793516]  ? fput+0x130/0x1a0
[  235.796803]  ? __bpf_prog_get+0x9b/0x290
[  235.800868]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  235.805711]  ? bpf_prog_test_run+0x130/0x1a0
[  235.810138]  ? __x64_sys_bpf+0x3db/0x520
[  235.814197]  ? bpf_prog_get+0x20/0x20
[  235.818023]  ? do_syscall_64+0x1b9/0x820
[  235.822087]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  235.827450]  ? syscall_return_slowpath+0x5e0/0x5e0
[  235.832380]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  235.837223]  ? trace_hardirqs_on_caller+0x310/0x310
[  235.842241]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  235.847262]  ? prepare_exit_to_usermode+0x291/0x3b0
[  235.852287]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  235.857140]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  235.862528] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  235.862533] warn_alloc_show_mem: 1 callbacks suppressed
[  235.862540] Mem-Info:
[  235.869545] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  235.874913] active_anon:57128 inactive_anon:971 isolated_anon:0
[  235.874913]  active_file:40 inactive_file:20 isolated_file:0
[  235.874913]  unevictable:0 dirty:11 writeback:0 unstable:0
[  235.874913]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  235.874913]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  235.874913]  free:13615 free_pcp:64 free_cma:0
[  235.877282] Call Trace:
[  235.886680] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  235.919609]  <IRQ>
[  235.922205] 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
[  235.950172]  dump_stack+0x244/0x39d
[  235.952287] lowmem_reserve[]: 0 2818 6321 6321
[  235.978394]  ? dump_stack_print_info.cold.1+0x20/0x20
[  235.981995] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  235.986588]  warn_alloc.cold.116+0xb7/0x1bd
[  235.991759] lowmem_reserve[]: 0 0 3503 3503
[  236.019249]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  236.023547] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  236.027864]  ? lock_downgrade+0x900/0x900
[  236.032678] lowmem_reserve[]: 0 0 0 0
[  236.061827]  ? trace_hardirqs_off+0xb8/0x310
[  236.065951] 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
[  236.069761]  ? trace_hardirqs_off+0xb8/0x310
[  236.074147] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  236.087692]  __alloc_pages_slowpath+0x2651/0x2de0
[  236.092080] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  236.107204]  ? warn_alloc+0x120/0x120
[  236.112114] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  236.127651]  ? print_usage_bug+0xc0/0xc0
[  236.131451] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  236.140286]  ? warn_alloc+0x120/0x120
[  236.144323] 5171 total pagecache pages
[  236.152905]  ? warn_alloc+0x120/0x120
[  236.156699] 0 pages in swap cache
[  236.160578]  ? print_usage_bug+0xc0/0xc0
[  236.164353] Swap cache stats: add 0, delete 0, find 0/0
[  236.167808]  ? print_usage_bug+0xc0/0xc0
[  236.171842] Free swap  = 0kB
[  236.177208]  ? __lock_acquire+0x62f/0x4c20
[  236.181246] Total swap = 0kB
[  236.184273]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  236.188477] 1965979 pages RAM
[  236.191499]  ? should_fail+0x22d/0xd01
[  236.197003] 0 pages HighMem/MovableOnly
[  236.197012] 342854 pages reserved
[  236.200123]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  236.203981] 0 pages cma reserved
[  236.207958]  ? __lock_acquire+0x62f/0x4c20
[  236.211450] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  236.216482]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  236.219890] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  236.224050]  ? __lock_acquire+0x62f/0x4c20
[  236.230514] syz-executor2 cpuset=syz2 mems_allowed=0
[  236.235612]  ? should_fail+0x22d/0xd01
[  236.259275]  ? find_held_lock+0x36/0x1c0
[  236.263354]  ? mark_held_locks+0x130/0x130
[  236.267597]  ? mark_held_locks+0x130/0x130
[  236.271840]  ? zap_class+0x640/0x640
[  236.275554]  ? zap_class+0x640/0x640
[  236.279273]  ? print_usage_bug+0xc0/0xc0
[  236.283333]  ? do_raw_spin_unlock+0xa7/0x330
[  236.287743]  ? zap_class+0x640/0x640
[  236.291457]  ? print_usage_bug+0xc0/0xc0
[  236.295519]  ? wq_watchdog_touch+0x9c/0xfe
[  236.299761]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  236.305323]  ? check_preemption_disabled+0x48/0x280
[  236.310377]  ? __lock_is_held+0xb5/0x140
[  236.314453]  __alloc_pages_nodemask+0xad8/0xea0
[  236.319143]  ? zap_class+0x640/0x640
[  236.322871]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  236.327902]  ? find_held_lock+0x36/0x1c0
[  236.331974]  ? ____cache_alloc_node+0x1c7/0x1e0
[  236.336659]  ? lock_downgrade+0x900/0x900
[  236.340821]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  236.346367]  cache_grow_begin+0xa5/0x8c0
[  236.350434]  ? do_raw_spin_unlock+0xa7/0x330
[  236.354858]  fallback_alloc+0x204/0x2e0
[  236.358840]  ____cache_alloc_node+0x1c7/0x1e0
[  236.363345]  kmem_cache_alloc_node+0xe3/0x730
[  236.367843]  ? ipv6_get_ifaddr+0x42e/0x620
[  236.372092]  __alloc_skb+0x119/0x770
[  236.375810]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  236.381098]  ? netdev_alloc_frag+0x1f0/0x1f0
[  236.385514]  ? lock_downgrade+0x900/0x900
[  236.389675]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  236.395212]  ? refcount_sub_and_test_checked+0x203/0x310
[  236.400668]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  236.406124]  ? addrconf_rs_timer+0x690/0x690
[  236.410565]  ndisc_alloc_skb+0x144/0x340
[  236.414639]  ndisc_send_rs+0x331/0x6e0
[  236.418547]  addrconf_rs_timer+0x314/0x690
[  236.422805]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  236.427054]  call_timer_fn+0x272/0x920
[  236.430939]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  236.435178]  ? process_timeout+0x40/0x40
[  236.439253]  ? mark_held_locks+0xc7/0x130
[  236.443406]  ? _raw_spin_unlock_irq+0x27/0x80
[  236.447901]  ? _raw_spin_unlock_irq+0x27/0x80
[  236.452392]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  236.456638]  ? lockdep_hardirqs_on+0x296/0x5b0
[  236.461223]  ? trace_hardirqs_on+0xbd/0x310
[  236.465547]  ? kasan_check_read+0x11/0x20
[  236.469692]  ? __run_timers+0x7da/0xc70
[  236.473665]  ? trace_hardirqs_off_caller+0x310/0x310
[  236.478777]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  236.483015]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  236.487248]  __run_timers+0x7e5/0xc70
[  236.491060]  ? timer_fixup_init+0x70/0x70
[  236.495222]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  236.500240]  ? zap_class+0x640/0x640
[  236.503958]  ? print_usage_bug+0xc0/0xc0
[  236.508020]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  236.513216]  ? find_held_lock+0x36/0x1c0
[  236.517287]  ? zap_class+0x640/0x640
[  236.521004]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  236.526541]  ? check_preemption_disabled+0x48/0x280
[  236.531568]  ? __lock_is_held+0xb5/0x140
[  236.535637]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  236.541181]  ? check_preemption_disabled+0x48/0x280
[  236.546200]  run_timer_softirq+0x52/0xb0
[  236.550265]  ? rcu_read_lock_sched_held+0x14f/0x180
[  236.555285]  __do_softirq+0x308/0xb7e
[  236.559087]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  236.563584]  ? lock_downgrade+0x900/0x900
[  236.567737]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  236.572867]  ? pvclock_read_flags+0x160/0x160
[  236.577368]  ? lapic_next_event+0x5a/0x90
[  236.581514]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  236.587053]  ? kvm_clock_read+0x18/0x30
[  236.591025]  ? kvm_sched_clock_read+0x9/0x20
[  236.595438]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  236.600975]  ? check_preemption_disabled+0x48/0x280
[  236.606002]  irq_exit+0x17f/0x1c0
[  236.609457]  smp_apic_timer_interrupt+0x1cb/0x760
[  236.614295]  ? smp_reschedule_interrupt+0x109/0x650
[  236.619314]  ? smp_call_function_single_interrupt+0x650/0x650
[  236.625211]  ? interrupt_entry+0xb5/0xc0
[  236.629275]  ? trace_hardirqs_off_caller+0xbb/0x310
[  236.634288]  ? trace_hardirqs_off_caller+0xbb/0x310
[  236.639306]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  236.644181]  ? trace_hardirqs_on_caller+0x310/0x310
[  236.649196]  ? trace_hardirqs_on_caller+0x310/0x310
[  236.654210]  ? task_prio+0x50/0x50
[  236.657750]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  236.663291]  ? check_preemption_disabled+0x48/0x280
[  236.668310]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  236.673195]  apic_timer_interrupt+0xf/0x20
[  236.677428]  </IRQ>
[  236.679694] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  236.684883] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  236.703783] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  236.711491] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  236.718756] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  236.726020] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  236.733301] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  236.740562] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  236.747855]  retint_kernel+0x1b/0x2d
[  236.751574] RIP: 0010:dump_stack+0x358/0x39d
[  236.756483] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  236.775380] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  236.783083] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  236.790347] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  236.797635] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  236.804935] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  236.812205] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  236.819487]  ? dump_stack+0x34f/0x39d
[  236.823302]  ? dump_stack_print_info.cold.1+0x20/0x20
[  236.828500]  ? mark_held_locks+0x130/0x130
[  236.832739]  ? mark_held_locks+0x130/0x130
[  236.836981]  dump_header+0x27b/0xf72
[  236.840738]  ? pagefault_out_of_memory+0x197/0x197
[  236.845678]  ? __lock_acquire+0x62f/0x4c20
[  236.849917]  ? print_usage_bug+0xc0/0xc0
[  236.853984]  ? zap_class+0x640/0x640
[  236.857706]  ? print_usage_bug+0xc0/0xc0
[  236.861764]  ? print_usage_bug+0xc0/0xc0
[  236.865825]  ? print_usage_bug+0xc0/0xc0
[  236.869896]  ? find_held_lock+0x36/0x1c0
[  236.873971]  ? mark_held_locks+0xc7/0x130
[  236.878121]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  236.883231]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  236.888337]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  236.892942]  ? trace_hardirqs_on+0xbd/0x310
[  236.897261]  ? kasan_check_read+0x11/0x20
[  236.901406]  ? ___ratelimit+0x3b4/0x672
[  236.905385]  ? trace_hardirqs_off_caller+0x310/0x310
[  236.910493]  ? trace_hardirqs_on+0x310/0x310
[  236.914908]  ? lock_downgrade+0x900/0x900
[  236.919059]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  236.924179]  ? ___ratelimit+0x3b9/0x672
[  236.928163]  ? idr_get_free+0xf70/0xf70
[  236.932135]  ? kasan_check_read+0x11/0x20
[  236.936304]  ? do_raw_spin_unlock+0xa7/0x330
[  236.940723]  oom_kill_process.cold.27+0x10/0x903
[  236.945475]  ? zap_class+0x640/0x640
[  236.949190]  ? _raw_spin_unlock+0x2c/0x50
[  236.953355]  ? oom_badness+0xe6/0xaa0
[  236.957162]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  236.962089]  ? kasan_check_read+0x11/0x20
[  236.966235]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  236.971510]  ? oom_evaluate_task+0x540/0x540
[  236.975923]  ? find_held_lock+0x36/0x1c0
[  236.979993]  ? out_of_memory+0x974/0x1430
[  236.984140]  ? lock_downgrade+0x900/0x900
[  236.988307]  ? check_preemption_disabled+0x48/0x280
[  236.993336]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  236.998265]  ? kasan_check_read+0x11/0x20
[  237.002405]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  237.007679]  ? rcu_softirq_qs+0x20/0x20
[  237.011661]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  237.017193]  ? oom_evaluate_task+0x302/0x540
[  237.021623]  out_of_memory+0xa84/0x1430
[  237.025613]  ? oom_killer_disable+0x3a0/0x3a0
[  237.030157]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  237.035122]  ? __ww_mutex_check_waiters+0x160/0x160
[  237.040156]  __alloc_pages_slowpath+0x232c/0x2de0
[  237.045026]  ? warn_alloc+0x120/0x120
[  237.048824]  ? mark_held_locks+0x130/0x130
[  237.053063]  ? find_get_entry+0xaae/0x1120
[  237.057307]  ? filemap_map_pages+0x1a20/0x1a20
[  237.061892]  ? zap_class+0x640/0x640
[  237.065613]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.071163]  ? check_preemption_disabled+0x48/0x280
[  237.076181]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  237.081717]  ? should_fail+0x22d/0xd01
[  237.085610]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  237.090719]  ? zap_class+0x640/0x640
[  237.094456]  ? __lock_is_held+0xb5/0x140
[  237.098538]  ? mark_held_locks+0x130/0x130
[  237.102778]  ? lock_release+0xa00/0xa00
[  237.106755]  ? perf_trace_sched_process_exec+0x860/0x860
[  237.112201]  ? xa_load+0x2ba/0x460
[  237.115748]  ? lock_downgrade+0x900/0x900
[  237.119899]  ? __might_sleep+0x95/0x190
[  237.123881]  __alloc_pages_nodemask+0xad8/0xea0
[  237.128557]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  237.133572]  ? __page_cache_alloc+0x191/0x5c0
[  237.138066]  ? xa_load+0x2e1/0x460
[  237.141605]  ? xa_clear_mark+0x40/0x40
[  237.145545]  ? zap_class+0x640/0x640
[  237.149270]  ? zap_class+0x640/0x640
[  237.152982]  ? zap_class+0x640/0x640
[  237.156696]  ? __do_page_cache_readahead+0x663/0x810
[  237.161803]  ? find_held_lock+0x36/0x1c0
[  237.165873]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  237.171415]  alloc_pages_current+0x173/0x350
[  237.175828]  __page_cache_alloc+0x38c/0x5c0
[  237.180150]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  237.185100]  ? kasan_check_read+0x11/0x20
[  237.189244]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  237.194525]  ? generic_perform_write+0x6a0/0x6a0
[  237.199281]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  237.204819]  ? check_preemption_disabled+0x48/0x280
[  237.209843]  filemap_fault+0x1595/0x25f0
[  237.213915]  ? __lock_page_or_retry+0xa00/0xa00
[  237.218584]  ? mark_held_locks+0x130/0x130
[  237.222825]  ? filemap_map_pages+0xd6b/0x1a20
[  237.227321]  ? lock_downgrade+0x900/0x900
[  237.231465]  ? check_preemption_disabled+0x48/0x280
[  237.236483]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  237.241416]  ? kasan_check_read+0x11/0x20
[  237.245560]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  237.250840]  ? rcu_softirq_qs+0x20/0x20
[  237.254826]  ? filemap_map_pages+0xd92/0x1a20
[  237.259380]  ? find_get_entries_tag+0x1400/0x1400
[  237.264226]  ? debug_object_destroy+0x2b0/0x2b0
[  237.268899]  ? lock_pi_update_atomic+0x150/0x150
[  237.273659]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.279208]  ? lock_acquire+0x1ed/0x520
[  237.283187]  ? ext4_filemap_fault+0x7a/0xad
[  237.287512]  ? lock_release+0xa00/0xa00
[  237.291500]  ? perf_trace_sched_process_exec+0x860/0x860
[  237.296951]  ? print_usage_bug+0xc0/0xc0
[  237.301018]  ? print_usage_bug+0xc0/0xc0
[  237.305148]  ? down_read+0x8d/0x120
[  237.308778]  ? ext4_filemap_fault+0x7a/0xad
[  237.313095]  ? __down_interruptible+0x700/0x700
[  237.317806]  ext4_filemap_fault+0x82/0xad
[  237.321955]  __do_fault+0x100/0x6b0
[  237.325588]  ? pmd_devmap_trans_unstable+0x220/0x220
[  237.330692]  ? mark_held_locks+0x130/0x130
[  237.334926]  ? mark_held_locks+0x130/0x130
[  237.339180]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  237.343957]  ? retint_kernel+0x2d/0x2d
[  237.347856]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  237.353402]  __handle_mm_fault+0x3ea0/0x5be0
[  237.357810]  ? perf_trace_lock+0x7a0/0x7a0
[  237.362053]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  237.366920]  ? __switch_to_asm+0x34/0x70
[  237.370986]  ? __switch_to_asm+0x34/0x70
[  237.375061]  ? zap_class+0x640/0x640
[  237.378780]  ? zap_class+0x640/0x640
[  237.382491]  ? __x64_sys_futex+0x53e/0x6a0
[  237.386729]  ? find_held_lock+0x36/0x1c0
[  237.390801]  ? handle_mm_fault+0x42a/0xc70
[  237.395038]  ? lock_downgrade+0x900/0x900
[  237.399197]  ? check_preemption_disabled+0x48/0x280
[  237.404213]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  237.409158]  ? kasan_check_read+0x11/0x20
[  237.413303]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  237.418578]  ? rcu_softirq_qs+0x20/0x20
[  237.422554]  ? trace_hardirqs_off_caller+0x310/0x310
[  237.427668]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  237.433206]  ? check_preemption_disabled+0x48/0x280
[  237.438228]  handle_mm_fault+0x54f/0xc70
[  237.442295]  ? __handle_mm_fault+0x5be0/0x5be0
[  237.446897]  ? find_vma+0x34/0x190
[  237.450441]  __do_page_fault+0x5e8/0xe60
[  237.454499]  ? trace_hardirqs_off+0xb8/0x310
[  237.458915]  do_page_fault+0xf2/0x7e0
[  237.462721]  ? vmalloc_sync_all+0x30/0x30
[  237.466886]  ? error_entry+0x70/0xd0
[  237.470614]  ? trace_hardirqs_off_caller+0xbb/0x310
[  237.475649]  ? trace_hardirqs_on_caller+0xc0/0x310
[  237.480578]  ? syscall_return_slowpath+0x5e0/0x5e0
[  237.485506]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  237.490353]  ? trace_hardirqs_on_caller+0x310/0x310
[  237.495382]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  237.500836]  ? prepare_exit_to_usermode+0x291/0x3b0
[  237.505854]  ? page_fault+0x8/0x30
[  237.509413]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  237.514269]  ? page_fault+0x8/0x30
[  237.517811]  page_fault+0x1e/0x30
[  237.521259] RIP: 0033:0x4290d7
[  237.524464] Code: Bad RIP value.
[  237.527823] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  237.533183] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  237.540449] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  237.547739] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  237.555023] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  237.562290] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  237.569585] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  237.569659] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  237.576868] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  237.576873] Call Trace:
[  237.576879]  <IRQ>
[  237.576898]  dump_stack+0x244/0x39d
[  237.576916]  ? dump_stack_print_info.cold.1+0x20/0x20
[  237.583468] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  237.592739]  warn_alloc.cold.116+0xb7/0x1bd
[  237.595297] syz-fuzzer cpuset=/ mems_allowed=0
[  237.597444]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  237.630157]  ? lock_downgrade+0x900/0x900
[  237.634314]  ? trace_hardirqs_off+0xb8/0x310
[  237.638729]  ? trace_hardirqs_off+0xb8/0x310
[  237.643141]  __alloc_pages_slowpath+0x2651/0x2de0
[  237.648011]  ? warn_alloc+0x120/0x120
[  237.651816]  ? print_usage_bug+0xc0/0xc0
[  237.655881]  ? warn_alloc+0x120/0x120
[  237.659687]  ? warn_alloc+0x120/0x120
[  237.663516]  ? print_usage_bug+0xc0/0xc0
[  237.667585]  ? print_usage_bug+0xc0/0xc0
[  237.671659]  ? __lock_acquire+0x62f/0x4c20
[  237.675901]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  237.681441]  ? should_fail+0x22d/0xd01
[  237.685335]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  237.690439]  ? __lock_acquire+0x62f/0x4c20
[  237.694700]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  237.699817]  ? __lock_acquire+0x62f/0x4c20
[  237.704048]  ? should_fail+0x22d/0xd01
[  237.707948]  ? mark_held_locks+0x130/0x130
[  237.712186]  ? mark_held_locks+0x130/0x130
[  237.716414]  ? zap_class+0x640/0x640
[  237.720132]  ? zap_class+0x640/0x640
[  237.723844]  ? print_usage_bug+0xc0/0xc0
[  237.727901]  ? wq_watchdog_touch+0x9c/0xfe
[  237.732140]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.737686]  ? check_preemption_disabled+0x48/0x280
[  237.742710]  ? __lock_is_held+0xb5/0x140
[  237.746774]  __alloc_pages_nodemask+0xad8/0xea0
[  237.751445]  ? zap_class+0x640/0x640
[  237.755161]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  237.760204]  ? find_held_lock+0x36/0x1c0
[  237.764285]  ? ____cache_alloc_node+0x1c7/0x1e0
[  237.768968]  ? lock_downgrade+0x900/0x900
[  237.773126]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.778676]  cache_grow_begin+0xa5/0x8c0
[  237.782736]  ? do_raw_spin_unlock+0xa7/0x330
[  237.787151]  fallback_alloc+0x204/0x2e0
[  237.791132]  ____cache_alloc_node+0x1c7/0x1e0
[  237.795642]  kmem_cache_alloc_node+0xe3/0x730
[  237.800144]  ? ipv6_get_ifaddr+0x42e/0x620
[  237.804391]  __alloc_skb+0x119/0x770
[  237.808100]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  237.813375]  ? netdev_alloc_frag+0x1f0/0x1f0
[  237.817778]  ? lock_downgrade+0x900/0x900
[  237.821933]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.827466]  ? refcount_sub_and_test_checked+0x203/0x310
[  237.832926]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  237.838373]  ? addrconf_rs_timer+0x690/0x690
[  237.842805]  ndisc_alloc_skb+0x144/0x340
[  237.846873]  ndisc_send_rs+0x331/0x6e0
[  237.850769]  addrconf_rs_timer+0x314/0x690
[  237.855011]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  237.859253]  call_timer_fn+0x272/0x920
[  237.863154]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  237.867388]  ? process_timeout+0x40/0x40
[  237.871457]  ? __run_timers+0x7da/0xc70
[  237.875430]  ? _raw_spin_unlock_irq+0x27/0x80
[  237.879940]  ? _raw_spin_unlock_irq+0x27/0x80
[  237.884431]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  237.888695]  ? lockdep_hardirqs_on+0x296/0x5b0
[  237.893279]  ? trace_hardirqs_on+0xbd/0x310
[  237.897598]  ? kasan_check_read+0x11/0x20
[  237.901754]  ? __run_timers+0x7da/0xc70
[  237.905756]  ? trace_hardirqs_off_caller+0x310/0x310
[  237.910869]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  237.915132]  __run_timers+0x7e5/0xc70
[  237.918944]  ? timer_fixup_init+0x70/0x70
[  237.923092]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  237.928110]  ? zap_class+0x640/0x640
[  237.931824]  ? enqueue_hrtimer+0x1a5/0x560
[  237.936058]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  237.941252]  ? find_held_lock+0x36/0x1c0
[  237.945330]  ? zap_class+0x640/0x640
[  237.949046]  ? pvclock_read_flags+0x160/0x160
[  237.953545]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.959084]  ? check_preemption_disabled+0x48/0x280
[  237.964109]  ? __lock_is_held+0xb5/0x140
[  237.968168]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.973708]  ? check_preemption_disabled+0x48/0x280
[  237.978734]  run_timer_softirq+0x52/0xb0
[  237.982798]  ? rcu_read_lock_sched_held+0x14f/0x180
[  237.987813]  __do_softirq+0x308/0xb7e
[  237.991621]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  237.996146]  ? lock_downgrade+0x900/0x900
[  238.000299]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  238.005410]  ? pvclock_read_flags+0x160/0x160
[  238.009906]  ? lapic_next_event+0x5a/0x90
[  238.014141]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.019699]  ? kvm_clock_read+0x18/0x30
[  238.023678]  ? kvm_sched_clock_read+0x9/0x20
[  238.028101]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.033673]  ? check_preemption_disabled+0x48/0x280
[  238.038725]  irq_exit+0x17f/0x1c0
[  238.042182]  smp_apic_timer_interrupt+0x1cb/0x760
[  238.047038]  ? smp_reschedule_interrupt+0x109/0x650
[  238.052069]  ? smp_call_function_single_interrupt+0x650/0x650
[  238.057957]  ? interrupt_entry+0xb5/0xc0
[  238.062021]  ? trace_hardirqs_off_caller+0xbb/0x310
[  238.067034]  ? trace_hardirqs_off_caller+0xbb/0x310
[  238.072052]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  238.076896]  ? trace_hardirqs_on_caller+0x310/0x310
[  238.081911]  ? trace_hardirqs_on_caller+0x310/0x310
[  238.086924]  ? task_prio+0x50/0x50
[  238.090466]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.096002]  ? check_preemption_disabled+0x48/0x280
[  238.101023]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  238.105899]  apic_timer_interrupt+0xf/0x20
[  238.110124]  </IRQ>
[  238.112361] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  238.117301] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  238.136197] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  238.143900] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  238.151169] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  238.158437] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  238.165698] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  238.172965] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  238.180270]  skb_clone+0x1bb/0x500
[  238.183817]  ? skb_split+0x11e0/0x11e0
[  238.187738]  ? preempt_notifier_register+0x200/0x200
[  238.192836]  ? __switch_to_asm+0x34/0x70
[  238.196893]  ? __switch_to_asm+0x34/0x70
[  238.200952]  ? __switch_to_asm+0x40/0x70
[  238.205011]  ? __switch_to_asm+0x34/0x70
[  238.209072]  ? __switch_to_asm+0x40/0x70
[  238.213147]  ? __switch_to_asm+0x40/0x70
[  238.217204]  ? __switch_to_asm+0x34/0x70
[  238.221267]  ? __switch_to_asm+0x34/0x70
[  238.225322]  ? __switch_to_asm+0x40/0x70
[  238.229382]  ? __switch_to_asm+0x34/0x70
[  238.233443]  bpf_clone_redirect+0xb9/0x490
[  238.237698]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  238.242719]  ? __sched_text_start+0x8/0x8
[  238.246874]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  238.251453]  ? retint_kernel+0x2d/0x2d
[  238.255351]  ? trace_hardirqs_on_caller+0xc0/0x310
[  238.260282]  ? find_held_lock+0x36/0x1c0
[  238.264354]  ? lock_acquire+0x1ed/0x520
[  238.268330]  ? bpf_test_run+0x3cb/0x780
[  238.272305]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.277844]  ? check_preemption_disabled+0x48/0x280
[  238.282866]  ? kasan_check_read+0x11/0x20
[  238.287013]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  238.292295]  ? rcu_softirq_qs+0x20/0x20
[  238.296268]  ? preempt_schedule+0x4d/0x60
[  238.300417]  ? ___preempt_schedule+0x16/0x18
[  238.304837]  ? bpf_test_run+0x25d/0x780
[  238.308825]  ? netlink_diag_dump+0x2a0/0x2a0
[  238.313250]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  238.318787]  ? bpf_test_init.isra.10+0x70/0x100
[  238.323462]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  238.328231]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  238.333091]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  238.338624]  ? fput+0x130/0x1a0
[  238.341923]  ? __bpf_prog_get+0x9b/0x290
[  238.345990]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  238.350831]  ? bpf_prog_test_run+0x130/0x1a0
[  238.355242]  ? __x64_sys_bpf+0x3db/0x520
[  238.359302]  ? bpf_prog_get+0x20/0x20
[  238.363123]  ? do_syscall_64+0x1b9/0x820
[  238.367186]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  238.372546]  ? syscall_return_slowpath+0x5e0/0x5e0
[  238.377486]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  238.382327]  ? trace_hardirqs_on_caller+0x310/0x310
[  238.387344]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  238.392361]  ? prepare_exit_to_usermode+0x291/0x3b0
[  238.397383]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  238.402259]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  238.407650] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  238.407663] warn_alloc_show_mem: 1 callbacks suppressed
[  238.407677] Mem-Info:
[  238.414684] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  238.420048] active_anon:57128 inactive_anon:971 isolated_anon:0
[  238.420048]  active_file:40 inactive_file:20 isolated_file:0
[  238.420048]  unevictable:0 dirty:11 writeback:0 unstable:0
[  238.420048]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  238.420048]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  238.420048]  free:13615 free_pcp:64 free_cma:0
[  238.422417] Call Trace:
[  238.431803] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  238.464745]  <IRQ>
[  238.467331] 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
[  238.495265]  dump_stack+0x244/0x39d
[  238.497389] lowmem_reserve[]: 0 2818 6321 6321
[  238.523494]  ? dump_stack_print_info.cold.1+0x20/0x20
[  238.527097] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  238.531696]  warn_alloc.cold.116+0xb7/0x1bd
[  238.536866] lowmem_reserve[]: 0 0 3503 3503
[  238.564359]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  238.568657] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  238.572969]  ? lock_downgrade+0x900/0x900
[  238.577789] lowmem_reserve[]: 0 0 0 0
[  238.606934]  ? trace_hardirqs_off+0xb8/0x310
[  238.611054] 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
[  238.614853]  ? trace_hardirqs_off+0xb8/0x310
[  238.619234] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  238.632928]  __alloc_pages_slowpath+0x2651/0x2de0
[  238.637315] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  238.652414]  ? warn_alloc+0x120/0x120
[  238.657216] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  238.672721]  ? print_usage_bug+0xc0/0xc0
[  238.676505] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  238.685324]  ? warn_alloc+0x120/0x120
[  238.689365] 5171 total pagecache pages
[  238.697945]  ? warn_alloc+0x120/0x120
[  238.701727] 0 pages in swap cache
[  238.705600]  ? print_usage_bug+0xc0/0xc0
[  238.709378] Swap cache stats: add 0, delete 0, find 0/0
[  238.712837]  ? kvm_clock_read+0x18/0x30
[  238.716870] Free swap  = 0kB
[  238.722225]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  238.726170] Total swap = 0kB
[  238.729206]  ? print_usage_bug+0xc0/0xc0
[  238.734194] 1965979 pages RAM
[  238.737206]  ? __lock_acquire+0x62f/0x4c20
[  238.741266] 0 pages HighMem/MovableOnly
[  238.744372]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  238.748579] 342854 pages reserved
[  238.752998]  ? should_fail+0x22d/0xd01
[  238.758512] 0 pages cma reserved
[  238.761957]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  238.765925] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  238.769185]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  238.774529] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  238.780935]  ? __lock_acquire+0x62f/0x4c20
[  238.786015] syz-executor2 cpuset=syz2 mems_allowed=0
[  238.796524]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  238.810919]  ? __lock_acquire+0x62f/0x4c20
[  238.815155]  ? should_fail+0x22d/0xd01
[  238.819042]  ? rcu_irq_exit+0x1a2/0x390
[  238.823028]  ? mark_held_locks+0x130/0x130
[  238.827278]  ? mark_held_locks+0x130/0x130
[  238.831521]  ? mark_held_locks+0xc7/0x130
[  238.835672]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  238.840692]  ? zap_class+0x640/0x640
[  238.844404]  ? print_usage_bug+0xc0/0xc0
[  238.848468]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.854004]  ? check_preemption_disabled+0x48/0x280
[  238.859033]  ? __lock_is_held+0xb5/0x140
[  238.863102]  __alloc_pages_nodemask+0xad8/0xea0
[  238.867773]  ? zap_class+0x640/0x640
[  238.871489]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  238.876529]  ? find_held_lock+0x36/0x1c0
[  238.880601]  ? ____cache_alloc_node+0x1c7/0x1e0
[  238.885298]  ? lock_downgrade+0x900/0x900
[  238.889453]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.894999]  cache_grow_begin+0xa5/0x8c0
[  238.899088]  ? do_raw_spin_unlock+0xa7/0x330
[  238.903501]  fallback_alloc+0x204/0x2e0
[  238.907485]  ____cache_alloc_node+0x1c7/0x1e0
[  238.911987]  kmem_cache_alloc_node+0xe3/0x730
[  238.916482]  ? ipv6_get_ifaddr+0x42e/0x620
[  238.920727]  __alloc_skb+0x119/0x770
[  238.924440]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  238.929736]  ? netdev_alloc_frag+0x1f0/0x1f0
[  238.934146]  ? lock_downgrade+0x900/0x900
[  238.938302]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.943852]  ? refcount_sub_and_test_checked+0x203/0x310
[  238.949306]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  238.954762]  ? addrconf_rs_timer+0x690/0x690
[  238.959199]  ndisc_alloc_skb+0x144/0x340
[  238.963280]  ndisc_send_rs+0x331/0x6e0
[  238.967177]  addrconf_rs_timer+0x314/0x690
[  238.971467]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  238.975711]  call_timer_fn+0x272/0x920
[  238.979595]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  238.983838]  ? process_timeout+0x40/0x40
[  238.987942]  ? mark_held_locks+0xc7/0x130
[  238.992091]  ? _raw_spin_unlock_irq+0x27/0x80
[  238.996585]  ? _raw_spin_unlock_irq+0x27/0x80
[  239.001096]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  239.005328]  ? lockdep_hardirqs_on+0x296/0x5b0
[  239.009911]  ? trace_hardirqs_on+0xbd/0x310
[  239.014235]  ? kasan_check_read+0x11/0x20
[  239.018377]  ? __run_timers+0x7da/0xc70
[  239.022349]  ? trace_hardirqs_off_caller+0x310/0x310
[  239.027485]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  239.031726]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  239.035957]  __run_timers+0x7e5/0xc70
[  239.039766]  ? timer_fixup_init+0x70/0x70
[  239.043914]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  239.048933]  ? zap_class+0x640/0x640
[  239.052659]  ? print_usage_bug+0xc0/0xc0
[  239.056723]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  239.061919]  ? find_held_lock+0x36/0x1c0
[  239.065985]  ? zap_class+0x640/0x640
[  239.069702]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.075239]  ? check_preemption_disabled+0x48/0x280
[  239.080268]  ? __lock_is_held+0xb5/0x140
[  239.084372]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.089912]  ? check_preemption_disabled+0x48/0x280
[  239.094932]  run_timer_softirq+0x52/0xb0
[  239.098995]  ? rcu_read_lock_sched_held+0x14f/0x180
[  239.104010]  __do_softirq+0x308/0xb7e
[  239.107813]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  239.112305]  ? lock_downgrade+0x900/0x900
[  239.116459]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  239.121570]  ? pvclock_read_flags+0x160/0x160
[  239.126065]  ? lapic_next_event+0x5a/0x90
[  239.130216]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.135762]  ? kvm_clock_read+0x18/0x30
[  239.139734]  ? kvm_sched_clock_read+0x9/0x20
[  239.144182]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.149723]  ? check_preemption_disabled+0x48/0x280
[  239.154748]  irq_exit+0x17f/0x1c0
[  239.158202]  smp_apic_timer_interrupt+0x1cb/0x760
[  239.163041]  ? smp_reschedule_interrupt+0x109/0x650
[  239.168057]  ? smp_call_function_single_interrupt+0x650/0x650
[  239.173940]  ? interrupt_entry+0xb5/0xc0
[  239.178000]  ? trace_hardirqs_off_caller+0xbb/0x310
[  239.183015]  ? trace_hardirqs_off_caller+0xbb/0x310
[  239.188029]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  239.192872]  ? trace_hardirqs_on_caller+0x310/0x310
[  239.197886]  ? trace_hardirqs_on_caller+0x310/0x310
[  239.202904]  ? task_prio+0x50/0x50
[  239.206444]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.211982]  ? check_preemption_disabled+0x48/0x280
[  239.217001]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  239.221855]  apic_timer_interrupt+0xf/0x20
[  239.226079]  </IRQ>
[  239.228322] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  239.233509] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  239.252404] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  239.260107] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  239.267403] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  239.274722] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  239.281987] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  239.289259] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  239.296555]  retint_kernel+0x1b/0x2d
[  239.300268] RIP: 0010:dump_stack+0x358/0x39d
[  239.304672] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  239.323570] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  239.331284] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  239.338550] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  239.345816] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  239.353107] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  239.360406] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  239.367708]  ? dump_stack+0x34f/0x39d
[  239.371518]  ? dump_stack_print_info.cold.1+0x20/0x20
[  239.376711]  ? mark_held_locks+0x130/0x130
[  239.380946]  ? mark_held_locks+0x130/0x130
[  239.385190]  dump_header+0x27b/0xf72
[  239.388929]  ? pagefault_out_of_memory+0x197/0x197
[  239.393864]  ? __lock_acquire+0x62f/0x4c20
[  239.398105]  ? print_usage_bug+0xc0/0xc0
[  239.402178]  ? zap_class+0x640/0x640
[  239.405893]  ? print_usage_bug+0xc0/0xc0
[  239.409950]  ? print_usage_bug+0xc0/0xc0
[  239.414016]  ? print_usage_bug+0xc0/0xc0
[  239.418103]  ? find_held_lock+0x36/0x1c0
[  239.422189]  ? mark_held_locks+0xc7/0x130
[  239.426339]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  239.431445]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  239.436552]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  239.441138]  ? trace_hardirqs_on+0xbd/0x310
[  239.445461]  ? kasan_check_read+0x11/0x20
[  239.449612]  ? ___ratelimit+0x3b4/0x672
[  239.453592]  ? trace_hardirqs_off_caller+0x310/0x310
[  239.458694]  ? trace_hardirqs_on+0x310/0x310
[  239.463106]  ? lock_downgrade+0x900/0x900
[  239.467272]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  239.472374]  ? ___ratelimit+0x3b9/0x672
[  239.476348]  ? idr_get_free+0xf70/0xf70
[  239.480336]  ? kasan_check_read+0x11/0x20
[  239.484483]  ? do_raw_spin_unlock+0xa7/0x330
[  239.488904]  oom_kill_process.cold.27+0x10/0x903
[  239.493663]  ? zap_class+0x640/0x640
[  239.497375]  ? _raw_spin_unlock+0x2c/0x50
[  239.501519]  ? oom_badness+0xe6/0xaa0
[  239.505317]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  239.510246]  ? kasan_check_read+0x11/0x20
[  239.514395]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  239.519671]  ? oom_evaluate_task+0x540/0x540
[  239.524081]  ? find_held_lock+0x36/0x1c0
[  239.528150]  ? out_of_memory+0x974/0x1430
[  239.532318]  ? lock_downgrade+0x900/0x900
[  239.536468]  ? check_preemption_disabled+0x48/0x280
[  239.541484]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  239.546422]  ? kasan_check_read+0x11/0x20
[  239.550569]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  239.555844]  ? rcu_softirq_qs+0x20/0x20
[  239.559824]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  239.565356]  ? oom_evaluate_task+0x302/0x540
[  239.569764]  out_of_memory+0xa84/0x1430
[  239.573750]  ? oom_killer_disable+0x3a0/0x3a0
[  239.578248]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  239.583186]  ? __ww_mutex_check_waiters+0x160/0x160
[  239.588243]  __alloc_pages_slowpath+0x232c/0x2de0
[  239.593115]  ? warn_alloc+0x120/0x120
[  239.596916]  ? mark_held_locks+0x130/0x130
[  239.601160]  ? find_get_entry+0xaae/0x1120
[  239.605404]  ? filemap_map_pages+0x1a20/0x1a20
[  239.610002]  ? zap_class+0x640/0x640
[  239.613722]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.619261]  ? check_preemption_disabled+0x48/0x280
[  239.624274]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  239.629813]  ? should_fail+0x22d/0xd01
[  239.633706]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  239.638813]  ? zap_class+0x640/0x640
[  239.642576]  ? __lock_is_held+0xb5/0x140
[  239.646670]  ? mark_held_locks+0x130/0x130
[  239.650908]  ? lock_release+0xa00/0xa00
[  239.654885]  ? perf_trace_sched_process_exec+0x860/0x860
[  239.660335]  ? xa_load+0x2ba/0x460
[  239.663878]  ? lock_downgrade+0x900/0x900
[  239.668043]  ? __might_sleep+0x95/0x190
[  239.672018]  __alloc_pages_nodemask+0xad8/0xea0
[  239.676730]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  239.681747]  ? __page_cache_alloc+0x191/0x5c0
[  239.686239]  ? xa_load+0x2e1/0x460
[  239.689781]  ? xa_clear_mark+0x40/0x40
[  239.693666]  ? zap_class+0x640/0x640
[  239.697385]  ? zap_class+0x640/0x640
[  239.701096]  ? zap_class+0x640/0x640
[  239.704808]  ? __do_page_cache_readahead+0x663/0x810
[  239.709915]  ? find_held_lock+0x36/0x1c0
[  239.713980]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  239.719524]  alloc_pages_current+0x173/0x350
[  239.723937]  __page_cache_alloc+0x38c/0x5c0
[  239.728256]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  239.733187]  ? kasan_check_read+0x11/0x20
[  239.737332]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  239.742613]  ? generic_perform_write+0x6a0/0x6a0
[  239.747378]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  239.752918]  ? check_preemption_disabled+0x48/0x280
[  239.757943]  filemap_fault+0x1595/0x25f0
[  239.762017]  ? __lock_page_or_retry+0xa00/0xa00
[  239.766705]  ? mark_held_locks+0x130/0x130
[  239.770946]  ? filemap_map_pages+0xd6b/0x1a20
[  239.775461]  ? lock_downgrade+0x900/0x900
[  239.779605]  ? check_preemption_disabled+0x48/0x280
[  239.784640]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  239.789582]  ? kasan_check_read+0x11/0x20
[  239.793731]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  239.799007]  ? rcu_softirq_qs+0x20/0x20
[  239.803024]  ? filemap_map_pages+0xd92/0x1a20
[  239.807532]  ? find_get_entries_tag+0x1400/0x1400
[  239.812393]  ? debug_object_destroy+0x2b0/0x2b0
[  239.817078]  ? lock_pi_update_atomic+0x150/0x150
[  239.821830]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.827377]  ? lock_acquire+0x1ed/0x520
[  239.831350]  ? ext4_filemap_fault+0x7a/0xad
[  239.835676]  ? lock_release+0xa00/0xa00
[  239.839653]  ? perf_trace_sched_process_exec+0x860/0x860
[  239.845105]  ? print_usage_bug+0xc0/0xc0
[  239.849174]  ? print_usage_bug+0xc0/0xc0
[  239.853247]  ? down_read+0x8d/0x120
[  239.856868]  ? ext4_filemap_fault+0x7a/0xad
[  239.861189]  ? __down_interruptible+0x700/0x700
[  239.865865]  ext4_filemap_fault+0x82/0xad
[  239.870012]  __do_fault+0x100/0x6b0
[  239.873654]  ? pmd_devmap_trans_unstable+0x220/0x220
[  239.878766]  ? mark_held_locks+0x130/0x130
[  239.883003]  ? mark_held_locks+0x130/0x130
[  239.887233]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  239.891991]  ? retint_kernel+0x2d/0x2d
[  239.895880]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  239.901423]  __handle_mm_fault+0x3ea0/0x5be0
[  239.905828]  ? perf_trace_lock+0x7a0/0x7a0
[  239.910067]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  239.914931]  ? __switch_to_asm+0x34/0x70
[  239.918988]  ? __switch_to_asm+0x34/0x70
[  239.923060]  ? zap_class+0x640/0x640
[  239.926789]  ? zap_class+0x640/0x640
[  239.930499]  ? __x64_sys_futex+0x53e/0x6a0
[  239.934735]  ? find_held_lock+0x36/0x1c0
[  239.938805]  ? handle_mm_fault+0x42a/0xc70
[  239.943038]  ? lock_downgrade+0x900/0x900
[  239.947185]  ? check_preemption_disabled+0x48/0x280
[  239.952208]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  239.957172]  ? kasan_check_read+0x11/0x20
[  239.961321]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  239.966597]  ? rcu_softirq_qs+0x20/0x20
[  239.970609]  ? trace_hardirqs_off_caller+0x310/0x310
[  239.975745]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  239.981308]  ? check_preemption_disabled+0x48/0x280
[  239.986365]  handle_mm_fault+0x54f/0xc70
[  239.990432]  ? __handle_mm_fault+0x5be0/0x5be0
[  239.995016]  ? find_vma+0x34/0x190
[  239.998566]  __do_page_fault+0x5e8/0xe60
[  240.002626]  ? trace_hardirqs_off+0xb8/0x310
[  240.007057]  do_page_fault+0xf2/0x7e0
[  240.010862]  ? vmalloc_sync_all+0x30/0x30
[  240.015008]  ? error_entry+0x70/0xd0
[  240.018725]  ? trace_hardirqs_off_caller+0xbb/0x310
[  240.023755]  ? trace_hardirqs_on_caller+0xc0/0x310
[  240.028686]  ? syscall_return_slowpath+0x5e0/0x5e0
[  240.033611]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  240.038458]  ? trace_hardirqs_on_caller+0x310/0x310
[  240.043475]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  240.048927]  ? prepare_exit_to_usermode+0x291/0x3b0
[  240.053940]  ? page_fault+0x8/0x30
[  240.057483]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  240.062327]  ? page_fault+0x8/0x30
[  240.065866]  page_fault+0x1e/0x30
[  240.069331] RIP: 0033:0x4290d7
[  240.072538] Code: Bad RIP value.
[  240.075900] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  240.081260] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  240.088522] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  240.095791] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  240.103059] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  240.110326] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  240.117615] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  240.117720] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  240.124905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  240.124910] Call Trace:
[  240.124916]  <IRQ>
[  240.124935]  dump_stack+0x244/0x39d
[  240.124954]  ? dump_stack_print_info.cold.1+0x20/0x20
[  240.131512] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  240.140785]  warn_alloc.cold.116+0xb7/0x1bd
[  240.143341] syz-fuzzer cpuset=/ mems_allowed=0
[  240.145480]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  240.178170]  ? lock_downgrade+0x900/0x900
[  240.182323]  ? trace_hardirqs_off+0xb8/0x310
[  240.186735]  ? trace_hardirqs_off+0xb8/0x310
[  240.191148]  __alloc_pages_slowpath+0x2651/0x2de0
[  240.196018]  ? warn_alloc+0x120/0x120
[  240.199832]  ? print_usage_bug+0xc0/0xc0
[  240.203890]  ? warn_alloc+0x120/0x120
[  240.207707]  ? warn_alloc+0x120/0x120
[  240.211522]  ? print_usage_bug+0xc0/0xc0
[  240.215598]  ? kvm_clock_read+0x18/0x30
[  240.219595]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  240.224608]  ? print_usage_bug+0xc0/0xc0
[  240.228683]  ? __lock_acquire+0x62f/0x4c20
[  240.232927]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  240.238460]  ? should_fail+0x22d/0xd01
[  240.242346]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  240.247624]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  240.252737]  ? __lock_acquire+0x62f/0x4c20
[  240.256974]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  240.262073]  ? __lock_acquire+0x62f/0x4c20
[  240.266316]  ? should_fail+0x22d/0xd01
[  240.270194]  ? rcu_irq_exit+0x1a2/0x390
[  240.274172]  ? mark_held_locks+0x130/0x130
[  240.278408]  ? mark_held_locks+0x130/0x130
[  240.282666]  ? mark_held_locks+0xc7/0x130
[  240.286814]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  240.291857]  ? zap_class+0x640/0x640
[  240.295572]  ? print_usage_bug+0xc0/0xc0
[  240.299642]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.305196]  ? check_preemption_disabled+0x48/0x280
[  240.310240]  ? __lock_is_held+0xb5/0x140
[  240.314303]  __alloc_pages_nodemask+0xad8/0xea0
[  240.318973]  ? zap_class+0x640/0x640
[  240.322693]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  240.327717]  ? find_held_lock+0x36/0x1c0
[  240.331815]  ? ____cache_alloc_node+0x1c7/0x1e0
[  240.336485]  ? lock_downgrade+0x900/0x900
[  240.340650]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.346195]  cache_grow_begin+0xa5/0x8c0
[  240.350250]  ? do_raw_spin_unlock+0xa7/0x330
[  240.354670]  fallback_alloc+0x204/0x2e0
[  240.358680]  ____cache_alloc_node+0x1c7/0x1e0
[  240.363181]  kmem_cache_alloc_node+0xe3/0x730
[  240.367682]  ? ipv6_get_ifaddr+0x42e/0x620
[  240.371947]  __alloc_skb+0x119/0x770
[  240.375671]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  240.380955]  ? netdev_alloc_frag+0x1f0/0x1f0
[  240.385362]  ? lock_downgrade+0x900/0x900
[  240.389514]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.395049]  ? refcount_sub_and_test_checked+0x203/0x310
[  240.400521]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  240.405983]  ? addrconf_rs_timer+0x690/0x690
[  240.410418]  ndisc_alloc_skb+0x144/0x340
[  240.414482]  ndisc_send_rs+0x331/0x6e0
[  240.418375]  addrconf_rs_timer+0x314/0x690
[  240.422615]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  240.426883]  call_timer_fn+0x272/0x920
[  240.430769]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  240.435001]  ? process_timeout+0x40/0x40
[  240.439100]  ? __run_timers+0x7da/0xc70
[  240.443088]  ? _raw_spin_unlock_irq+0x27/0x80
[  240.447582]  ? _raw_spin_unlock_irq+0x27/0x80
[  240.452092]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  240.456323]  ? lockdep_hardirqs_on+0x296/0x5b0
[  240.460907]  ? trace_hardirqs_on+0xbd/0x310
[  240.465229]  ? kasan_check_read+0x11/0x20
[  240.469372]  ? __run_timers+0x7da/0xc70
[  240.473349]  ? trace_hardirqs_off_caller+0x310/0x310
[  240.478465]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  240.482698]  __run_timers+0x7e5/0xc70
[  240.486507]  ? timer_fixup_init+0x70/0x70
[  240.490667]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  240.495717]  ? zap_class+0x640/0x640
[  240.499434]  ? enqueue_hrtimer+0x1a5/0x560
[  240.503677]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  240.508877]  ? find_held_lock+0x36/0x1c0
[  240.512945]  ? zap_class+0x640/0x640
[  240.516672]  ? pvclock_read_flags+0x160/0x160
[  240.521164]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.526700]  ? check_preemption_disabled+0x48/0x280
[  240.531723]  ? __lock_is_held+0xb5/0x140
[  240.535785]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.541320]  ? check_preemption_disabled+0x48/0x280
[  240.546368]  run_timer_softirq+0x52/0xb0
[  240.550427]  ? rcu_read_lock_sched_held+0x14f/0x180
[  240.555455]  __do_softirq+0x308/0xb7e
[  240.559256]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  240.563762]  ? lock_downgrade+0x900/0x900
[  240.567913]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  240.573026]  ? pvclock_read_flags+0x160/0x160
[  240.577523]  ? lapic_next_event+0x5a/0x90
[  240.581689]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.587290]  ? kvm_clock_read+0x18/0x30
[  240.591267]  ? kvm_sched_clock_read+0x9/0x20
[  240.595682]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.601233]  ? check_preemption_disabled+0x48/0x280
[  240.606260]  irq_exit+0x17f/0x1c0
[  240.609715]  smp_apic_timer_interrupt+0x1cb/0x760
[  240.614552]  ? smp_reschedule_interrupt+0x109/0x650
[  240.619580]  ? smp_call_function_single_interrupt+0x650/0x650
[  240.625910]  ? interrupt_entry+0xb5/0xc0
[  240.629989]  ? trace_hardirqs_off_caller+0xbb/0x310
[  240.635001]  ? trace_hardirqs_off_caller+0xbb/0x310
[  240.640018]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  240.644865]  ? trace_hardirqs_on_caller+0x310/0x310
[  240.649882]  ? trace_hardirqs_on_caller+0x310/0x310
[  240.654913]  ? task_prio+0x50/0x50
[  240.658453]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.663988]  ? check_preemption_disabled+0x48/0x280
[  240.669035]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  240.673881]  apic_timer_interrupt+0xf/0x20
[  240.678107]  </IRQ>
[  240.680342] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  240.685297] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  240.704191] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  240.711907] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  240.719174] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  240.726440] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  240.733711] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  240.740975] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  240.748274]  skb_clone+0x1bb/0x500
[  240.751806]  ? skb_split+0x11e0/0x11e0
[  240.755717]  ? preempt_notifier_register+0x200/0x200
[  240.760817]  ? __switch_to_asm+0x34/0x70
[  240.764878]  ? __switch_to_asm+0x34/0x70
[  240.768934]  ? __switch_to_asm+0x40/0x70
[  240.773021]  ? __switch_to_asm+0x34/0x70
[  240.777075]  ? __switch_to_asm+0x40/0x70
[  240.781151]  ? __switch_to_asm+0x40/0x70
[  240.785210]  ? __switch_to_asm+0x34/0x70
[  240.789270]  ? __switch_to_asm+0x34/0x70
[  240.793324]  ? __switch_to_asm+0x40/0x70
[  240.797380]  ? __switch_to_asm+0x34/0x70
[  240.801444]  bpf_clone_redirect+0xb9/0x490
[  240.805689]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  240.810711]  ? __sched_text_start+0x8/0x8
[  240.814876]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  240.819473]  ? retint_kernel+0x2d/0x2d
[  240.823365]  ? trace_hardirqs_on_caller+0xc0/0x310
[  240.828302]  ? find_held_lock+0x36/0x1c0
[  240.832371]  ? lock_acquire+0x1ed/0x520
[  240.836344]  ? bpf_test_run+0x3cb/0x780
[  240.840320]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.845856]  ? check_preemption_disabled+0x48/0x280
[  240.850875]  ? kasan_check_read+0x11/0x20
[  240.855043]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  240.860319]  ? rcu_softirq_qs+0x20/0x20
[  240.864294]  ? preempt_schedule+0x4d/0x60
[  240.868441]  ? ___preempt_schedule+0x16/0x18
[  240.872855]  ? bpf_test_run+0x25d/0x780
[  240.876856]  ? netlink_diag_dump+0x2a0/0x2a0
[  240.881265]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  240.886825]  ? bpf_test_init.isra.10+0x70/0x100
[  240.891517]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  240.896284]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  240.901154]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  240.906703]  ? fput+0x130/0x1a0
[  240.910035]  ? __bpf_prog_get+0x9b/0x290
[  240.914109]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  240.918949]  ? bpf_prog_test_run+0x130/0x1a0
[  240.923374]  ? __x64_sys_bpf+0x3db/0x520
[  240.927433]  ? bpf_prog_get+0x20/0x20
[  240.931253]  ? do_syscall_64+0x1b9/0x820
[  240.935310]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  240.940675]  ? syscall_return_slowpath+0x5e0/0x5e0
[  240.945602]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  240.950449]  ? trace_hardirqs_on_caller+0x310/0x310
[  240.955480]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  240.960495]  ? prepare_exit_to_usermode+0x291/0x3b0
[  240.965543]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  240.970388]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  240.975773] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  240.975778] warn_alloc_show_mem: 1 callbacks suppressed
[  240.975785] Mem-Info:
[  240.982808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  240.988174] active_anon:57128 inactive_anon:971 isolated_anon:0
[  240.988174]  active_file:40 inactive_file:20 isolated_file:0
[  240.988174]  unevictable:0 dirty:11 writeback:0 unstable:0
[  240.988174]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  240.988174]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  240.988174]  free:13615 free_pcp:64 free_cma:0
[  240.990551] Call Trace:
[  240.999954] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  241.032883]  <IRQ>
[  241.035448] 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
[  241.063372]  dump_stack+0x244/0x39d
[  241.065511] lowmem_reserve[]: 0 2818 6321 6321
[  241.091613]  ? dump_stack_print_info.cold.1+0x20/0x20
[  241.095209] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  241.099788]  warn_alloc.cold.116+0xb7/0x1bd
[  241.104941] lowmem_reserve[]: 0 0 3503 3503
[  241.132458]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  241.136756] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  241.141080]  ? lock_downgrade+0x900/0x900
[  241.145895] lowmem_reserve[]: 0 0 0 0
[  241.175044]  ? trace_hardirqs_off+0xb8/0x310
[  241.179157] 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
[  241.182965]  ? trace_hardirqs_off+0xb8/0x310
[  241.187363] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  241.200886]  __alloc_pages_slowpath+0x2651/0x2de0
[  241.205262] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  241.220359]  ? warn_alloc+0x120/0x120
[  241.225159] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  241.240674]  ? print_usage_bug+0xc0/0xc0
[  241.244457] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  241.253276]  ? warn_alloc+0x120/0x120
[  241.257322] 5171 total pagecache pages
[  241.265885]  ? warn_alloc+0x120/0x120
[  241.269669] 0 pages in swap cache
[  241.273553]  ? print_usage_bug+0xc0/0xc0
[  241.277344] Swap cache stats: add 0, delete 0, find 0/0
[  241.280783]  ? kvm_clock_read+0x18/0x30
[  241.284821] Free swap  = 0kB
[  241.290178]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  241.294122] Total swap = 0kB
[  241.297145]  ? print_usage_bug+0xc0/0xc0
[  241.302135] 1965979 pages RAM
[  241.305150]  ? __lock_acquire+0x62f/0x4c20
[  241.309183] 0 pages HighMem/MovableOnly
[  241.312280]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  241.316505] 342854 pages reserved
[  241.320489]  ? should_fail+0x22d/0xd01
[  241.325998] 0 pages cma reserved
[  241.329443]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  241.333363] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  241.336672]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  241.342005] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  241.348413]  ? __lock_acquire+0x62f/0x4c20
[  241.353490] syz-executor2 cpuset=syz2 mems_allowed=0
[  241.363973]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  241.378361]  ? __lock_acquire+0x62f/0x4c20
[  241.382589]  ? should_fail+0x22d/0xd01
[  241.386471]  ? rcu_irq_exit+0x1a2/0x390
[  241.390475]  ? mark_held_locks+0x130/0x130
[  241.394717]  ? mark_held_locks+0x130/0x130
[  241.398960]  ? mark_held_locks+0xc7/0x130
[  241.403106]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  241.408123]  ? zap_class+0x640/0x640
[  241.411840]  ? print_usage_bug+0xc0/0xc0
[  241.415903]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  241.421441]  ? check_preemption_disabled+0x48/0x280
[  241.426481]  ? __lock_is_held+0xb5/0x140
[  241.430560]  __alloc_pages_nodemask+0xad8/0xea0
[  241.435230]  ? zap_class+0x640/0x640
[  241.438946]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  241.443972]  ? find_held_lock+0x36/0x1c0
[  241.448040]  ? ____cache_alloc_node+0x1c7/0x1e0
[  241.452715]  ? lock_downgrade+0x900/0x900
[  241.456879]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  241.462419]  cache_grow_begin+0xa5/0x8c0
[  241.466478]  ? do_raw_spin_unlock+0xa7/0x330
[  241.470891]  fallback_alloc+0x204/0x2e0
[  241.474869]  ____cache_alloc_node+0x1c7/0x1e0
[  241.479366]  kmem_cache_alloc_node+0xe3/0x730
[  241.483859]  ? ipv6_get_ifaddr+0x42e/0x620
[  241.488103]  __alloc_skb+0x119/0x770
[  241.491814]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  241.497105]  ? netdev_alloc_frag+0x1f0/0x1f0
[  241.501511]  ? lock_downgrade+0x900/0x900
[  241.505674]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  241.511214]  ? refcount_sub_and_test_checked+0x203/0x310
[  241.516668]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  241.522132]  ? addrconf_rs_timer+0x690/0x690
[  241.526555]  ndisc_alloc_skb+0x144/0x340
[  241.530622]  ndisc_send_rs+0x331/0x6e0
[  241.534537]  addrconf_rs_timer+0x314/0x690
[  241.538777]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  241.543026]  call_timer_fn+0x272/0x920
[  241.546912]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  241.551144]  ? process_timeout+0x40/0x40
[  241.555220]  ? mark_held_locks+0xc7/0x130
[  241.559373]  ? _raw_spin_unlock_irq+0x27/0x80
[  241.563866]  ? _raw_spin_unlock_irq+0x27/0x80
[  241.568361]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  241.572595]  ? lockdep_hardirqs_on+0x296/0x5b0
[  241.577204]  ? trace_hardirqs_on+0xbd/0x310
[  241.581520]  ? kasan_check_read+0x11/0x20
[  241.585663]  ? __run_timers+0x7da/0xc70
[  241.589644]  ? trace_hardirqs_off_caller+0x310/0x310
[  241.594755]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  241.598997]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  241.603228]  __run_timers+0x7e5/0xc70
[  241.607055]  ? timer_fixup_init+0x70/0x70
[  241.611204]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  241.616232]  ? zap_class+0x640/0x640
[  241.619976]  ? print_usage_bug+0xc0/0xc0
[  241.624038]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  241.629234]  ? find_held_lock+0x36/0x1c0
[  241.633299]  ? zap_class+0x640/0x640
[  241.637021]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  241.642557]  ? check_preemption_disabled+0x48/0x280
[  241.647672]  ? __lock_is_held+0xb5/0x140
[  241.651753]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  241.657288]  ? check_preemption_disabled+0x48/0x280
[  241.662310]  run_timer_softirq+0x52/0xb0
[  241.666372]  ? rcu_read_lock_sched_held+0x14f/0x180
[  241.671393]  __do_softirq+0x308/0xb7e
[  241.675200]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  241.679697]  ? lock_downgrade+0x900/0x900
[  241.683852]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  241.688963]  ? pvclock_read_flags+0x160/0x160
[  241.693458]  ? lapic_next_event+0x5a/0x90
[  241.697612]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  241.703171]  ? kvm_clock_read+0x18/0x30
[  241.707147]  ? kvm_sched_clock_read+0x9/0x20
[  241.711569]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  241.717106]  ? check_preemption_disabled+0x48/0x280
[  241.722142]  irq_exit+0x17f/0x1c0
[  241.725603]  smp_apic_timer_interrupt+0x1cb/0x760
[  241.730452]  ? smp_reschedule_interrupt+0x109/0x650
[  241.735471]  ? smp_call_function_single_interrupt+0x650/0x650
[  241.741355]  ? interrupt_entry+0xb5/0xc0
[  241.745416]  ? trace_hardirqs_off_caller+0xbb/0x310
[  241.750429]  ? trace_hardirqs_off_caller+0xbb/0x310
[  241.755445]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  241.760286]  ? trace_hardirqs_on_caller+0x310/0x310
[  241.765298]  ? trace_hardirqs_on_caller+0x310/0x310
[  241.770312]  ? task_prio+0x50/0x50
[  241.773858]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  241.779394]  ? check_preemption_disabled+0x48/0x280
[  241.784416]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  241.789266]  apic_timer_interrupt+0xf/0x20
[  241.793492]  </IRQ>
[  241.795729] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  241.800921] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  241.819818] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  241.827521] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  241.834797] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  241.842060] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  241.849324] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  241.856588] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  241.863885]  retint_kernel+0x1b/0x2d
[  241.867598] RIP: 0010:dump_stack+0x358/0x39d
[  241.872013] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  241.890911] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  241.898613] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  241.905889] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  241.913174] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  241.920439] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  241.927712] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  241.934993]  ? dump_stack+0x34f/0x39d
[  241.938807]  ? dump_stack_print_info.cold.1+0x20/0x20
[  241.944000]  ? mark_held_locks+0x130/0x130
[  241.948236]  ? mark_held_locks+0x130/0x130
[  241.952478]  dump_header+0x27b/0xf72
[  241.956204]  ? pagefault_out_of_memory+0x197/0x197
[  241.961140]  ? __lock_acquire+0x62f/0x4c20
[  241.965382]  ? print_usage_bug+0xc0/0xc0
[  241.969448]  ? zap_class+0x640/0x640
[  241.973169]  ? print_usage_bug+0xc0/0xc0
[  241.977227]  ? print_usage_bug+0xc0/0xc0
[  241.981298]  ? print_usage_bug+0xc0/0xc0
[  241.985370]  ? find_held_lock+0x36/0x1c0
[  241.989440]  ? mark_held_locks+0xc7/0x130
[  241.993591]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  241.998695]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  242.003796]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  242.008377]  ? trace_hardirqs_on+0xbd/0x310
[  242.012696]  ? kasan_check_read+0x11/0x20
[  242.016842]  ? ___ratelimit+0x3b4/0x672
[  242.020815]  ? trace_hardirqs_off_caller+0x310/0x310
[  242.025919]  ? trace_hardirqs_on+0x310/0x310
[  242.030326]  ? lock_downgrade+0x900/0x900
[  242.034482]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  242.039586]  ? ___ratelimit+0x3b9/0x672
[  242.043564]  ? idr_get_free+0xf70/0xf70
[  242.047535]  ? kasan_check_read+0x11/0x20
[  242.051680]  ? do_raw_spin_unlock+0xa7/0x330
[  242.056096]  oom_kill_process.cold.27+0x10/0x903
[  242.060854]  ? zap_class+0x640/0x640
[  242.064568]  ? _raw_spin_unlock+0x2c/0x50
[  242.068713]  ? oom_badness+0xe6/0xaa0
[  242.072511]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  242.077437]  ? kasan_check_read+0x11/0x20
[  242.081581]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  242.086857]  ? oom_evaluate_task+0x540/0x540
[  242.091268]  ? find_held_lock+0x36/0x1c0
[  242.095339]  ? out_of_memory+0x974/0x1430
[  242.099490]  ? lock_downgrade+0x900/0x900
[  242.103644]  ? check_preemption_disabled+0x48/0x280
[  242.108667]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  242.113593]  ? kasan_check_read+0x11/0x20
[  242.117738]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  242.123011]  ? rcu_softirq_qs+0x20/0x20
[  242.126990]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  242.132522]  ? oom_evaluate_task+0x302/0x540
[  242.136933]  out_of_memory+0xa84/0x1430
[  242.140918]  ? oom_killer_disable+0x3a0/0x3a0
[  242.145412]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  242.150346]  ? __ww_mutex_check_waiters+0x160/0x160
[  242.155376]  __alloc_pages_slowpath+0x232c/0x2de0
[  242.160250]  ? warn_alloc+0x120/0x120
[  242.164048]  ? mark_held_locks+0x130/0x130
[  242.168290]  ? find_get_entry+0xaae/0x1120
[  242.172531]  ? filemap_map_pages+0x1a20/0x1a20
[  242.177122]  ? zap_class+0x640/0x640
[  242.180843]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.186386]  ? check_preemption_disabled+0x48/0x280
[  242.191405]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  242.196940]  ? should_fail+0x22d/0xd01
[  242.200835]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  242.205937]  ? zap_class+0x640/0x640
[  242.209682]  ? __lock_is_held+0xb5/0x140
[  242.213757]  ? mark_held_locks+0x130/0x130
[  242.217993]  ? lock_release+0xa00/0xa00
[  242.221971]  ? perf_trace_sched_process_exec+0x860/0x860
[  242.227416]  ? xa_load+0x2ba/0x460
[  242.230957]  ? lock_downgrade+0x900/0x900
[  242.235112]  ? __might_sleep+0x95/0x190
[  242.239091]  __alloc_pages_nodemask+0xad8/0xea0
[  242.243780]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  242.248800]  ? __page_cache_alloc+0x191/0x5c0
[  242.253290]  ? xa_load+0x2e1/0x460
[  242.256831]  ? xa_clear_mark+0x40/0x40
[  242.260733]  ? zap_class+0x640/0x640
[  242.264452]  ? zap_class+0x640/0x640
[  242.268171]  ? zap_class+0x640/0x640
[  242.271888]  ? __do_page_cache_readahead+0x663/0x810
[  242.276997]  ? find_held_lock+0x36/0x1c0
[  242.281060]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  242.286605]  alloc_pages_current+0x173/0x350
[  242.291031]  __page_cache_alloc+0x38c/0x5c0
[  242.295348]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  242.300276]  ? kasan_check_read+0x11/0x20
[  242.304423]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  242.309702]  ? generic_perform_write+0x6a0/0x6a0
[  242.314456]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  242.319995]  ? check_preemption_disabled+0x48/0x280
[  242.325022]  filemap_fault+0x1595/0x25f0
[  242.329094]  ? __lock_page_or_retry+0xa00/0xa00
[  242.333768]  ? mark_held_locks+0x130/0x130
[  242.338011]  ? filemap_map_pages+0xd6b/0x1a20
[  242.342506]  ? lock_downgrade+0x900/0x900
[  242.346661]  ? check_preemption_disabled+0x48/0x280
[  242.351685]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  242.356612]  ? kasan_check_read+0x11/0x20
[  242.360769]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  242.366046]  ? rcu_softirq_qs+0x20/0x20
[  242.370032]  ? filemap_map_pages+0xd92/0x1a20
[  242.374538]  ? find_get_entries_tag+0x1400/0x1400
[  242.379384]  ? debug_object_destroy+0x2b0/0x2b0
[  242.384053]  ? lock_pi_update_atomic+0x150/0x150
[  242.388805]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.394352]  ? lock_acquire+0x1ed/0x520
[  242.398334]  ? ext4_filemap_fault+0x7a/0xad
[  242.402674]  ? lock_release+0xa00/0xa00
[  242.406652]  ? perf_trace_sched_process_exec+0x860/0x860
[  242.412130]  ? print_usage_bug+0xc0/0xc0
[  242.416194]  ? print_usage_bug+0xc0/0xc0
[  242.420268]  ? down_read+0x8d/0x120
[  242.423890]  ? ext4_filemap_fault+0x7a/0xad
[  242.428238]  ? __down_interruptible+0x700/0x700
[  242.432914]  ext4_filemap_fault+0x82/0xad
[  242.437063]  __do_fault+0x100/0x6b0
[  242.440696]  ? pmd_devmap_trans_unstable+0x220/0x220
[  242.445805]  ? mark_held_locks+0x130/0x130
[  242.450042]  ? mark_held_locks+0x130/0x130
[  242.454279]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  242.459039]  ? retint_kernel+0x2d/0x2d
[  242.462928]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  242.468467]  __handle_mm_fault+0x3ea0/0x5be0
[  242.472871]  ? perf_trace_lock+0x7a0/0x7a0
[  242.477117]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  242.481964]  ? __switch_to_asm+0x34/0x70
[  242.486024]  ? __switch_to_asm+0x34/0x70
[  242.490095]  ? zap_class+0x640/0x640
[  242.493810]  ? zap_class+0x640/0x640
[  242.497520]  ? __x64_sys_futex+0x53e/0x6a0
[  242.501760]  ? find_held_lock+0x36/0x1c0
[  242.505829]  ? handle_mm_fault+0x42a/0xc70
[  242.510064]  ? lock_downgrade+0x900/0x900
[  242.514214]  ? check_preemption_disabled+0x48/0x280
[  242.519234]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  242.524168]  ? kasan_check_read+0x11/0x20
[  242.528317]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  242.533601]  ? rcu_softirq_qs+0x20/0x20
[  242.537582]  ? trace_hardirqs_off_caller+0x310/0x310
[  242.542686]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  242.548224]  ? check_preemption_disabled+0x48/0x280
[  242.553246]  handle_mm_fault+0x54f/0xc70
[  242.557309]  ? __handle_mm_fault+0x5be0/0x5be0
[  242.561895]  ? find_vma+0x34/0x190
[  242.565438]  __do_page_fault+0x5e8/0xe60
[  242.569496]  ? trace_hardirqs_off+0xb8/0x310
[  242.573911]  do_page_fault+0xf2/0x7e0
[  242.577712]  ? vmalloc_sync_all+0x30/0x30
[  242.581859]  ? error_entry+0x70/0xd0
[  242.585572]  ? trace_hardirqs_off_caller+0xbb/0x310
[  242.590586]  ? trace_hardirqs_on_caller+0xc0/0x310
[  242.595513]  ? syscall_return_slowpath+0x5e0/0x5e0
[  242.600444]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  242.605290]  ? trace_hardirqs_on_caller+0x310/0x310
[  242.610308]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  242.615764]  ? prepare_exit_to_usermode+0x291/0x3b0
[  242.620973]  ? page_fault+0x8/0x30
[  242.624519]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  242.629366]  ? page_fault+0x8/0x30
[  242.632907]  page_fault+0x1e/0x30
[  242.636357] RIP: 0033:0x4290d7
[  242.639558] Code: Bad RIP value.
[  242.642919] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  242.648278] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  242.655545] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  242.662812] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  242.670075] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  242.677337] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  242.684627] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  242.684705] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  242.691914] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  242.691919] Call Trace:
[  242.691925]  <IRQ>
[  242.691944]  dump_stack+0x244/0x39d
[  242.691963]  ? dump_stack_print_info.cold.1+0x20/0x20
[  242.698527] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  242.707784]  warn_alloc.cold.116+0xb7/0x1bd
[  242.710366] syz-fuzzer cpuset=/ mems_allowed=0
[  242.712510]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  242.745204]  ? lock_downgrade+0x900/0x900
[  242.749376]  ? trace_hardirqs_off+0xb8/0x310
[  242.753791]  ? trace_hardirqs_off+0xb8/0x310
[  242.758208]  __alloc_pages_slowpath+0x2651/0x2de0
[  242.763090]  ? warn_alloc+0x120/0x120
[  242.766896]  ? print_usage_bug+0xc0/0xc0
[  242.770956]  ? warn_alloc+0x120/0x120
[  242.774763]  ? warn_alloc+0x120/0x120
[  242.778565]  ? print_usage_bug+0xc0/0xc0
[  242.782623]  ? kvm_clock_read+0x18/0x30
[  242.786665]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  242.791688]  ? print_usage_bug+0xc0/0xc0
[  242.795757]  ? __lock_acquire+0x62f/0x4c20
[  242.799995]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  242.805534]  ? should_fail+0x22d/0xd01
[  242.809421]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  242.814701]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  242.819803]  ? __lock_acquire+0x62f/0x4c20
[  242.824040]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  242.829138]  ? __lock_acquire+0x62f/0x4c20
[  242.833373]  ? should_fail+0x22d/0xd01
[  242.837254]  ? rcu_irq_exit+0x1a2/0x390
[  242.841238]  ? mark_held_locks+0x130/0x130
[  242.845475]  ? mark_held_locks+0x130/0x130
[  242.849712]  ? mark_held_locks+0xc7/0x130
[  242.853856]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  242.858873]  ? zap_class+0x640/0x640
[  242.862583]  ? print_usage_bug+0xc0/0xc0
[  242.866651]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.872208]  ? check_preemption_disabled+0x48/0x280
[  242.877228]  ? __lock_is_held+0xb5/0x140
[  242.881295]  __alloc_pages_nodemask+0xad8/0xea0
[  242.885960]  ? zap_class+0x640/0x640
[  242.889719]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  242.894745]  ? find_held_lock+0x36/0x1c0
[  242.898830]  ? ____cache_alloc_node+0x1c7/0x1e0
[  242.903500]  ? lock_downgrade+0x900/0x900
[  242.907671]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.913211]  cache_grow_begin+0xa5/0x8c0
[  242.917269]  ? do_raw_spin_unlock+0xa7/0x330
[  242.921701]  fallback_alloc+0x204/0x2e0
[  242.925688]  ____cache_alloc_node+0x1c7/0x1e0
[  242.930198]  kmem_cache_alloc_node+0xe3/0x730
[  242.934696]  ? ipv6_get_ifaddr+0x42e/0x620
[  242.938939]  __alloc_skb+0x119/0x770
[  242.942658]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  242.947941]  ? netdev_alloc_frag+0x1f0/0x1f0
[  242.952347]  ? lock_downgrade+0x900/0x900
[  242.956503]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.962044]  ? refcount_sub_and_test_checked+0x203/0x310
[  242.967516]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  242.972969]  ? addrconf_rs_timer+0x690/0x690
[  242.977386]  ndisc_alloc_skb+0x144/0x340
[  242.981452]  ndisc_send_rs+0x331/0x6e0
[  242.985354]  addrconf_rs_timer+0x314/0x690
[  242.989592]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  242.993844]  call_timer_fn+0x272/0x920
[  242.997736]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  243.001970]  ? process_timeout+0x40/0x40
[  243.006041]  ? __run_timers+0x7da/0xc70
[  243.010015]  ? _raw_spin_unlock_irq+0x27/0x80
[  243.014509]  ? _raw_spin_unlock_irq+0x27/0x80
[  243.019001]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  243.023234]  ? lockdep_hardirqs_on+0x296/0x5b0
[  243.027823]  ? trace_hardirqs_on+0xbd/0x310
[  243.032149]  ? kasan_check_read+0x11/0x20
[  243.036294]  ? __run_timers+0x7da/0xc70
[  243.040268]  ? trace_hardirqs_off_caller+0x310/0x310
[  243.045378]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  243.049617]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  243.053861]  __run_timers+0x7e5/0xc70
[  243.057677]  ? timer_fixup_init+0x70/0x70
[  243.061826]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  243.066842]  ? zap_class+0x640/0x640
[  243.070559]  ? enqueue_hrtimer+0x1a5/0x560
[  243.074795]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  243.079991]  ? find_held_lock+0x36/0x1c0
[  243.084082]  ? zap_class+0x640/0x640
[  243.087821]  ? pvclock_read_flags+0x160/0x160
[  243.092321]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.097862]  ? check_preemption_disabled+0x48/0x280
[  243.102887]  ? __lock_is_held+0xb5/0x140
[  243.106954]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.112492]  ? check_preemption_disabled+0x48/0x280
[  243.117514]  run_timer_softirq+0x52/0xb0
[  243.121574]  ? rcu_read_lock_sched_held+0x14f/0x180
[  243.126593]  __do_softirq+0x308/0xb7e
[  243.130398]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  243.134894]  ? lock_downgrade+0x900/0x900
[  243.139044]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  243.144158]  ? pvclock_read_flags+0x160/0x160
[  243.148668]  ? lapic_next_event+0x5a/0x90
[  243.152817]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.158357]  ? kvm_clock_read+0x18/0x30
[  243.162333]  ? kvm_sched_clock_read+0x9/0x20
[  243.166743]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.172283]  ? check_preemption_disabled+0x48/0x280
[  243.177307]  irq_exit+0x17f/0x1c0
[  243.180764]  smp_apic_timer_interrupt+0x1cb/0x760
[  243.185604]  ? smp_reschedule_interrupt+0x109/0x650
[  243.190627]  ? smp_call_function_single_interrupt+0x650/0x650
[  243.196522]  ? interrupt_entry+0xb5/0xc0
[  243.200583]  ? trace_hardirqs_off_caller+0xbb/0x310
[  243.205597]  ? trace_hardirqs_off_caller+0xbb/0x310
[  243.210624]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  243.215481]  ? trace_hardirqs_on_caller+0x310/0x310
[  243.220497]  ? trace_hardirqs_on_caller+0x310/0x310
[  243.225511]  ? task_prio+0x50/0x50
[  243.229053]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.234593]  ? check_preemption_disabled+0x48/0x280
[  243.239617]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  243.244479]  apic_timer_interrupt+0xf/0x20
[  243.248709]  </IRQ>
[  243.250951] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  243.255878] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  243.274781] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  243.282483] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  243.289746] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  243.297009] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  243.304272] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  243.311538] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  243.318844]  skb_clone+0x1bb/0x500
[  243.322385]  ? skb_split+0x11e0/0x11e0
[  243.326280]  ? preempt_notifier_register+0x200/0x200
[  243.331380]  ? __switch_to_asm+0x34/0x70
[  243.335441]  ? __switch_to_asm+0x34/0x70
[  243.339498]  ? __switch_to_asm+0x40/0x70
[  243.343660]  ? __switch_to_asm+0x34/0x70
[  243.347723]  ? __switch_to_asm+0x40/0x70
[  243.351781]  ? __switch_to_asm+0x40/0x70
[  243.355840]  ? __switch_to_asm+0x34/0x70
[  243.359898]  ? __switch_to_asm+0x34/0x70
[  243.363953]  ? __switch_to_asm+0x40/0x70
[  243.368021]  ? __switch_to_asm+0x34/0x70
[  243.372099]  bpf_clone_redirect+0xb9/0x490
[  243.376346]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  243.381362]  ? __sched_text_start+0x8/0x8
[  243.385529]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  243.390109]  ? retint_kernel+0x2d/0x2d
[  243.393998]  ? trace_hardirqs_on_caller+0xc0/0x310
[  243.398929]  ? find_held_lock+0x36/0x1c0
[  243.402995]  ? lock_acquire+0x1ed/0x520
[  243.406969]  ? bpf_test_run+0x3cb/0x780
[  243.410946]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.416488]  ? check_preemption_disabled+0x48/0x280
[  243.421537]  ? kasan_check_read+0x11/0x20
[  243.425683]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  243.430960]  ? rcu_softirq_qs+0x20/0x20
[  243.434933]  ? preempt_schedule+0x4d/0x60
[  243.439080]  ? ___preempt_schedule+0x16/0x18
[  243.443492]  ? bpf_test_run+0x25d/0x780
[  243.447479]  ? netlink_diag_dump+0x2a0/0x2a0
[  243.451889]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  243.457424]  ? bpf_test_init.isra.10+0x70/0x100
[  243.462099]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  243.466871]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  243.471713]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  243.477247]  ? fput+0x130/0x1a0
[  243.480529]  ? __bpf_prog_get+0x9b/0x290
[  243.484591]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  243.489436]  ? bpf_prog_test_run+0x130/0x1a0
[  243.493850]  ? __x64_sys_bpf+0x3db/0x520
[  243.497913]  ? bpf_prog_get+0x20/0x20
[  243.501735]  ? do_syscall_64+0x1b9/0x820
[  243.505795]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  243.511161]  ? syscall_return_slowpath+0x5e0/0x5e0
[  243.516088]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  243.520935]  ? trace_hardirqs_on_caller+0x310/0x310
[  243.525952]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  243.530968]  ? prepare_exit_to_usermode+0x291/0x3b0
[  243.535988]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  243.540849]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  243.546228] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  243.546234] warn_alloc_show_mem: 1 callbacks suppressed
[  243.546240] Mem-Info:
[  243.553250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  243.558615] active_anon:57128 inactive_anon:971 isolated_anon:0
[  243.558615]  active_file:40 inactive_file:20 isolated_file:0
[  243.558615]  unevictable:0 dirty:11 writeback:0 unstable:0
[  243.558615]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  243.558615]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  243.558615]  free:13615 free_pcp:64 free_cma:0
[  243.560989] Call Trace:
[  243.570386] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  243.603310]  <IRQ>
[  243.605883] 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
[  243.633812]  dump_stack+0x244/0x39d
[  243.635934] lowmem_reserve[]: 0 2818 6321 6321
[  243.662038]  ? dump_stack_print_info.cold.1+0x20/0x20
[  243.665643] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  243.670266]  warn_alloc.cold.116+0xb7/0x1bd
[  243.675423] lowmem_reserve[]: 0 0 3503 3503
[  243.702924]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  243.707219] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  243.711532]  ? lock_downgrade+0x900/0x900
[  243.716344] lowmem_reserve[]: 0 0 0 0
[  243.745482]  ? trace_hardirqs_off+0xb8/0x310
[  243.749599] 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
[  243.753397]  ? trace_hardirqs_off+0xb8/0x310
[  243.757779] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  243.771301]  __alloc_pages_slowpath+0x2651/0x2de0
[  243.775680] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  243.790782]  ? warn_alloc+0x120/0x120
[  243.795582] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  243.811089]  ? print_usage_bug+0xc0/0xc0
[  243.814867] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  243.823685]  ? warn_alloc+0x120/0x120
[  243.827742] 5171 total pagecache pages
[  243.836320]  ? warn_alloc+0x120/0x120
[  243.840101] 0 pages in swap cache
[  243.843978]  ? print_usage_bug+0xc0/0xc0
[  243.847759] Swap cache stats: add 0, delete 0, find 0/0
[  243.851205]  ? print_usage_bug+0xc0/0xc0
[  243.855243] Free swap  = 0kB
[  243.860599]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  243.864637] Total swap = 0kB
[  243.867656]  ? should_fail+0x22d/0xd01
[  243.873173] 1965979 pages RAM
[  243.876183]  ? zap_class+0x640/0x640
[  243.880043] 0 pages HighMem/MovableOnly
[  243.883163]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  243.886843] 342854 pages reserved
[  243.890826]  ? __lock_acquire+0x62f/0x4c20
[  243.895901] 0 pages cma reserved
[  243.899342]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  243.903609] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  243.906900]  ? __lock_acquire+0x62f/0x4c20
[  243.906916]  ? should_fail+0x22d/0xd01
[  243.912144] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  243.918500]  ? mark_held_locks+0x130/0x130
[  243.922705] syz-executor2 cpuset=syz2 mems_allowed=0
[  243.926580]  ? mark_held_locks+0x130/0x130
[  243.950578]  ? lock_downgrade+0x900/0x900
[  243.954734]  ? trace_hardirqs_off+0xb8/0x310
[  243.959160]  ? zap_class+0x640/0x640
[  243.962875]  ? print_usage_bug+0xc0/0xc0
[  243.966936]  ? trace_hardirqs_on+0x310/0x310
[  243.971340]  ? do_raw_spin_trylock+0x270/0x270
[  243.975920]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.981458]  ? check_preemption_disabled+0x48/0x280
[  243.986482]  ? __lock_is_held+0xb5/0x140
[  243.990549]  __alloc_pages_nodemask+0xad8/0xea0
[  243.995211]  ? zap_class+0x640/0x640
[  243.998927]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  244.003949]  ? find_held_lock+0x36/0x1c0
[  244.008016]  ? ____cache_alloc_node+0x1c7/0x1e0
[  244.012684]  ? lock_downgrade+0x900/0x900
[  244.016836]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.022379]  cache_grow_begin+0xa5/0x8c0
[  244.026440]  ? do_raw_spin_unlock+0xa7/0x330
[  244.030857]  fallback_alloc+0x204/0x2e0
[  244.034836]  ____cache_alloc_node+0x1c7/0x1e0
[  244.039335]  kmem_cache_alloc_node+0xe3/0x730
[  244.043830]  ? ipv6_get_ifaddr+0x42e/0x620
[  244.048073]  __alloc_skb+0x119/0x770
[  244.051784]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  244.057066]  ? netdev_alloc_frag+0x1f0/0x1f0
[  244.061490]  ? lock_downgrade+0x900/0x900
[  244.065651]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.071187]  ? refcount_sub_and_test_checked+0x203/0x310
[  244.076649]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  244.082117]  ? addrconf_rs_timer+0x690/0x690
[  244.086539]  ndisc_alloc_skb+0x144/0x340
[  244.090638]  ndisc_send_rs+0x331/0x6e0
[  244.094530]  addrconf_rs_timer+0x314/0x690
[  244.098769]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  244.103012]  call_timer_fn+0x272/0x920
[  244.106912]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  244.111151]  ? process_timeout+0x40/0x40
[  244.115223]  ? mark_held_locks+0xc7/0x130
[  244.119371]  ? _raw_spin_unlock_irq+0x27/0x80
[  244.123863]  ? _raw_spin_unlock_irq+0x27/0x80
[  244.128381]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  244.132651]  ? lockdep_hardirqs_on+0x296/0x5b0
[  244.137267]  ? trace_hardirqs_on+0xbd/0x310
[  244.141585]  ? kasan_check_read+0x11/0x20
[  244.145734]  ? __run_timers+0x7da/0xc70
[  244.149716]  ? trace_hardirqs_off_caller+0x310/0x310
[  244.154827]  ? kblockd_schedule_work+0x30/0x30
[  244.159415]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  244.163651]  __run_timers+0x7e5/0xc70
[  244.167477]  ? timer_fixup_init+0x70/0x70
[  244.171637]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  244.176658]  ? zap_class+0x640/0x640
[  244.180420]  ? print_usage_bug+0xc0/0xc0
[  244.184495]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  244.189691]  ? find_held_lock+0x36/0x1c0
[  244.193755]  ? zap_class+0x640/0x640
[  244.197487]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.203036]  ? check_preemption_disabled+0x48/0x280
[  244.208067]  ? __lock_is_held+0xb5/0x140
[  244.212164]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.217702]  ? check_preemption_disabled+0x48/0x280
[  244.222754]  run_timer_softirq+0x52/0xb0
[  244.226845]  ? rcu_read_lock_sched_held+0x14f/0x180
[  244.231862]  __do_softirq+0x308/0xb7e
[  244.235671]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  244.240214]  ? lock_downgrade+0x900/0x900
[  244.244379]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  244.249502]  ? pvclock_read_flags+0x160/0x160
[  244.253999]  ? lapic_next_event+0x5a/0x90
[  244.258151]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.263715]  ? kvm_clock_read+0x18/0x30
[  244.267694]  ? kvm_sched_clock_read+0x9/0x20
[  244.272102]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.277645]  ? check_preemption_disabled+0x48/0x280
[  244.282693]  irq_exit+0x17f/0x1c0
[  244.286168]  smp_apic_timer_interrupt+0x1cb/0x760
[  244.291007]  ? smp_reschedule_interrupt+0x109/0x650
[  244.296027]  ? smp_call_function_single_interrupt+0x650/0x650
[  244.301908]  ? interrupt_entry+0xb5/0xc0
[  244.305973]  ? trace_hardirqs_off_caller+0xbb/0x310
[  244.311006]  ? trace_hardirqs_off_caller+0xbb/0x310
[  244.316020]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  244.320864]  ? trace_hardirqs_on_caller+0x310/0x310
[  244.325882]  ? trace_hardirqs_on_caller+0x310/0x310
[  244.330899]  ? task_prio+0x50/0x50
[  244.334442]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.339976]  ? check_preemption_disabled+0x48/0x280
[  244.344996]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  244.349851]  apic_timer_interrupt+0xf/0x20
[  244.354077]  </IRQ>
[  244.356327] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  244.361532] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  244.380429] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  244.388135] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  244.395404] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  244.402671] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  244.409935] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  244.417199] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  244.424507]  retint_kernel+0x1b/0x2d
[  244.428224] RIP: 0010:dump_stack+0x358/0x39d
[  244.432626] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  244.451534] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  244.459237] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  244.466502] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  244.473768] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  244.481036] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  244.488304] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  244.495588]  ? dump_stack+0x34f/0x39d
[  244.499403]  ? dump_stack_print_info.cold.1+0x20/0x20
[  244.504593]  ? mark_held_locks+0x130/0x130
[  244.508831]  ? mark_held_locks+0x130/0x130
[  244.513068]  dump_header+0x27b/0xf72
[  244.516805]  ? pagefault_out_of_memory+0x197/0x197
[  244.521772]  ? __lock_acquire+0x62f/0x4c20
[  244.526026]  ? print_usage_bug+0xc0/0xc0
[  244.530103]  ? zap_class+0x640/0x640
[  244.533821]  ? print_usage_bug+0xc0/0xc0
[  244.537883]  ? print_usage_bug+0xc0/0xc0
[  244.541949]  ? print_usage_bug+0xc0/0xc0
[  244.546033]  ? find_held_lock+0x36/0x1c0
[  244.550103]  ? mark_held_locks+0xc7/0x130
[  244.554274]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  244.559373]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  244.564523]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  244.569118]  ? trace_hardirqs_on+0xbd/0x310
[  244.573441]  ? kasan_check_read+0x11/0x20
[  244.577592]  ? ___ratelimit+0x3b4/0x672
[  244.581566]  ? trace_hardirqs_off_caller+0x310/0x310
[  244.586673]  ? trace_hardirqs_on+0x310/0x310
[  244.591081]  ? lock_downgrade+0x900/0x900
[  244.595233]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  244.600338]  ? ___ratelimit+0x3b9/0x672
[  244.604316]  ? idr_get_free+0xf70/0xf70
[  244.608300]  ? kasan_check_read+0x11/0x20
[  244.612442]  ? do_raw_spin_unlock+0xa7/0x330
[  244.616886]  oom_kill_process.cold.27+0x10/0x903
[  244.621826]  ? zap_class+0x640/0x640
[  244.625538]  ? _raw_spin_unlock+0x2c/0x50
[  244.629684]  ? oom_badness+0xe6/0xaa0
[  244.633481]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  244.638427]  ? kasan_check_read+0x11/0x20
[  244.642615]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  244.647912]  ? oom_evaluate_task+0x540/0x540
[  244.652321]  ? find_held_lock+0x36/0x1c0
[  244.656390]  ? out_of_memory+0x974/0x1430
[  244.660537]  ? lock_downgrade+0x900/0x900
[  244.664682]  ? check_preemption_disabled+0x48/0x280
[  244.669713]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  244.674646]  ? kasan_check_read+0x11/0x20
[  244.678796]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  244.684074]  ? rcu_softirq_qs+0x20/0x20
[  244.688068]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  244.693602]  ? oom_evaluate_task+0x302/0x540
[  244.698022]  out_of_memory+0xa84/0x1430
[  244.702001]  ? oom_killer_disable+0x3a0/0x3a0
[  244.706492]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  244.711423]  ? __ww_mutex_check_waiters+0x160/0x160
[  244.716448]  __alloc_pages_slowpath+0x232c/0x2de0
[  244.721317]  ? warn_alloc+0x120/0x120
[  244.725128]  ? mark_held_locks+0x130/0x130
[  244.729372]  ? find_get_entry+0xaae/0x1120
[  244.733637]  ? filemap_map_pages+0x1a20/0x1a20
[  244.738225]  ? zap_class+0x640/0x640
[  244.741942]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.747482]  ? check_preemption_disabled+0x48/0x280
[  244.752498]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  244.758507]  ? should_fail+0x22d/0xd01
[  244.762411]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  244.767527]  ? zap_class+0x640/0x640
[  244.771278]  ? __lock_is_held+0xb5/0x140
[  244.775347]  ? mark_held_locks+0x130/0x130
[  244.779595]  ? lock_release+0xa00/0xa00
[  244.783566]  ? perf_trace_sched_process_exec+0x860/0x860
[  244.789015]  ? xa_load+0x2ba/0x460
[  244.792569]  ? lock_downgrade+0x900/0x900
[  244.796722]  ? __might_sleep+0x95/0x190
[  244.800700]  __alloc_pages_nodemask+0xad8/0xea0
[  244.805388]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  244.810402]  ? __page_cache_alloc+0x191/0x5c0
[  244.814911]  ? xa_load+0x2e1/0x460
[  244.818451]  ? xa_clear_mark+0x40/0x40
[  244.822340]  ? zap_class+0x640/0x640
[  244.826075]  ? zap_class+0x640/0x640
[  244.829813]  ? zap_class+0x640/0x640
[  244.833543]  ? __do_page_cache_readahead+0x663/0x810
[  244.838659]  ? find_held_lock+0x36/0x1c0
[  244.842726]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  244.848270]  alloc_pages_current+0x173/0x350
[  244.852686]  __page_cache_alloc+0x38c/0x5c0
[  244.857017]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  244.861965]  ? kasan_check_read+0x11/0x20
[  244.866177]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  244.871473]  ? generic_perform_write+0x6a0/0x6a0
[  244.876231]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  244.881770]  ? check_preemption_disabled+0x48/0x280
[  244.886822]  filemap_fault+0x1595/0x25f0
[  244.890923]  ? __lock_page_or_retry+0xa00/0xa00
[  244.895625]  ? mark_held_locks+0x130/0x130
[  244.899875]  ? filemap_map_pages+0xd6b/0x1a20
[  244.904371]  ? lock_downgrade+0x900/0x900
[  244.908514]  ? check_preemption_disabled+0x48/0x280
[  244.913999]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  244.918925]  ? kasan_check_read+0x11/0x20
[  244.923074]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  244.928351]  ? rcu_softirq_qs+0x20/0x20
[  244.932338]  ? filemap_map_pages+0xd92/0x1a20
[  244.936850]  ? find_get_entries_tag+0x1400/0x1400
[  244.941701]  ? debug_object_destroy+0x2b0/0x2b0
[  244.946374]  ? lock_pi_update_atomic+0x150/0x150
[  244.951130]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.956683]  ? lock_acquire+0x1ed/0x520
[  244.960664]  ? ext4_filemap_fault+0x7a/0xad
[  244.965005]  ? lock_release+0xa00/0xa00
[  244.968979]  ? perf_trace_sched_process_exec+0x860/0x860
[  244.974432]  ? print_usage_bug+0xc0/0xc0
[  244.978494]  ? print_usage_bug+0xc0/0xc0
[  244.982563]  ? down_read+0x8d/0x120
[  244.986184]  ? ext4_filemap_fault+0x7a/0xad
[  244.990502]  ? __down_interruptible+0x700/0x700
[  244.995394]  ext4_filemap_fault+0x82/0xad
[  244.999542]  __do_fault+0x100/0x6b0
[  245.003178]  ? pmd_devmap_trans_unstable+0x220/0x220
[  245.008284]  ? mark_held_locks+0x130/0x130
[  245.012523]  ? mark_held_locks+0x130/0x130
[  245.016758]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  245.021520]  ? retint_kernel+0x2d/0x2d
[  245.025407]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  245.030948]  __handle_mm_fault+0x3ea0/0x5be0
[  245.035354]  ? perf_trace_lock+0x7a0/0x7a0
[  245.039598]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  245.044461]  ? __switch_to_asm+0x34/0x70
[  245.048520]  ? __switch_to_asm+0x34/0x70
[  245.052612]  ? zap_class+0x640/0x640
[  245.056348]  ? zap_class+0x640/0x640
[  245.060063]  ? __x64_sys_futex+0x53e/0x6a0
[  245.064303]  ? find_held_lock+0x36/0x1c0
[  245.068418]  ? handle_mm_fault+0x42a/0xc70
[  245.072670]  ? lock_downgrade+0x900/0x900
[  245.077278]  ? check_preemption_disabled+0x48/0x280
[  245.082302]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  245.087228]  ? kasan_check_read+0x11/0x20
[  245.091387]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  245.096669]  ? rcu_softirq_qs+0x20/0x20
[  245.100650]  ? trace_hardirqs_off_caller+0x310/0x310
[  245.105757]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  245.111295]  ? check_preemption_disabled+0x48/0x280
[  245.116319]  handle_mm_fault+0x54f/0xc70
[  245.120385]  ? __handle_mm_fault+0x5be0/0x5be0
[  245.124972]  ? find_vma+0x34/0x190
[  245.128519]  __do_page_fault+0x5e8/0xe60
[  245.132575]  ? trace_hardirqs_off+0xb8/0x310
[  245.137007]  do_page_fault+0xf2/0x7e0
[  245.140807]  ? vmalloc_sync_all+0x30/0x30
[  245.144952]  ? error_entry+0x70/0xd0
[  245.148664]  ? trace_hardirqs_off_caller+0xbb/0x310
[  245.153684]  ? trace_hardirqs_on_caller+0xc0/0x310
[  245.158610]  ? syscall_return_slowpath+0x5e0/0x5e0
[  245.163720]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  245.168561]  ? trace_hardirqs_on_caller+0x310/0x310
[  245.173577]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  245.179031]  ? prepare_exit_to_usermode+0x291/0x3b0
[  245.184060]  ? page_fault+0x8/0x30
[  245.187602]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  245.192467]  ? page_fault+0x8/0x30
[  245.196027]  page_fault+0x1e/0x30
[  245.199491] RIP: 0033:0x4290d7
[  245.202697] Code: Bad RIP value.
[  245.206059] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  245.211415] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  245.218677] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  245.225975] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  245.233238] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  245.240693] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  245.248015] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  245.248080] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  245.255299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  245.255304] Call Trace:
[  245.255310]  <IRQ>
[  245.255335]  dump_stack+0x244/0x39d
[  245.255360]  ? dump_stack_print_info.cold.1+0x20/0x20
[  245.261907] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  245.271207]  warn_alloc.cold.116+0xb7/0x1bd
[  245.273755] syz-fuzzer cpuset=/ mems_allowed=0
[  245.275902]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  245.308614]  ? lock_downgrade+0x900/0x900
[  245.312795]  ? trace_hardirqs_off+0xb8/0x310
[  245.317225]  ? trace_hardirqs_off+0xb8/0x310
[  245.321647]  __alloc_pages_slowpath+0x2651/0x2de0
[  245.326526]  ? warn_alloc+0x120/0x120
[  245.330325]  ? print_usage_bug+0xc0/0xc0
[  245.334386]  ? warn_alloc+0x120/0x120
[  245.338197]  ? warn_alloc+0x120/0x120
[  245.342016]  ? print_usage_bug+0xc0/0xc0
[  245.346079]  ? kvm_clock_read+0x18/0x30
[  245.350051]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  245.355068]  ? print_usage_bug+0xc0/0xc0
[  245.359127]  ? __lock_acquire+0x62f/0x4c20
[  245.363363]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  245.368895]  ? should_fail+0x22d/0xd01
[  245.372803]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  245.377907]  ? __lock_acquire+0x62f/0x4c20
[  245.382146]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  245.387250]  ? __lock_acquire+0x62f/0x4c20
[  245.391496]  ? should_fail+0x22d/0xd01
[  245.395397]  ? mark_held_locks+0x130/0x130
[  245.399646]  ? mark_held_locks+0x130/0x130
[  245.403897]  ? zap_class+0x640/0x640
[  245.407608]  ? print_usage_bug+0xc0/0xc0
[  245.411683]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.417223]  ? check_preemption_disabled+0x48/0x280
[  245.422276]  ? __lock_is_held+0xb5/0x140
[  245.426345]  __alloc_pages_nodemask+0xad8/0xea0
[  245.431012]  ? zap_class+0x640/0x640
[  245.434728]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  245.439756]  ? find_held_lock+0x36/0x1c0
[  245.443825]  ? ____cache_alloc_node+0x1c7/0x1e0
[  245.448494]  ? lock_downgrade+0x900/0x900
[  245.452658]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.458202]  cache_grow_begin+0xa5/0x8c0
[  245.462277]  ? do_raw_spin_unlock+0xa7/0x330
[  245.466704]  fallback_alloc+0x204/0x2e0
[  245.470688]  ____cache_alloc_node+0x1c7/0x1e0
[  245.475189]  kmem_cache_alloc_node+0xe3/0x730
[  245.479691]  ? ipv6_get_ifaddr+0x42e/0x620
[  245.483933]  __alloc_skb+0x119/0x770
[  245.487657]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  245.492941]  ? netdev_alloc_frag+0x1f0/0x1f0
[  245.497388]  ? lock_downgrade+0x900/0x900
[  245.501546]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.507114]  ? refcount_sub_and_test_checked+0x203/0x310
[  245.512567]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  245.518046]  ? addrconf_rs_timer+0x690/0x690
[  245.522475]  ndisc_alloc_skb+0x144/0x340
[  245.526554]  ndisc_send_rs+0x331/0x6e0
[  245.530448]  addrconf_rs_timer+0x314/0x690
[  245.534690]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.538933]  call_timer_fn+0x272/0x920
[  245.542817]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.547050]  ? process_timeout+0x40/0x40
[  245.551164]  ? __run_timers+0x7da/0xc70
[  245.555137]  ? _raw_spin_unlock_irq+0x27/0x80
[  245.559637]  ? _raw_spin_unlock_irq+0x27/0x80
[  245.564148]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.568380]  ? lockdep_hardirqs_on+0x296/0x5b0
[  245.572964]  ? trace_hardirqs_on+0xbd/0x310
[  245.577286]  ? kasan_check_read+0x11/0x20
[  245.581451]  ? __run_timers+0x7da/0xc70
[  245.585421]  ? trace_hardirqs_off_caller+0x310/0x310
[  245.590543]  ? can_init_stats.isra.0+0x100/0x100
[  245.595300]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.599527]  __run_timers+0x7e5/0xc70
[  245.603334]  ? timer_fixup_init+0x70/0x70
[  245.607482]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  245.612497]  ? zap_class+0x640/0x640
[  245.616247]  ? enqueue_hrtimer+0x1a5/0x560
[  245.620501]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  245.625696]  ? find_held_lock+0x36/0x1c0
[  245.629763]  ? zap_class+0x640/0x640
[  245.633509]  ? pvclock_read_flags+0x160/0x160
[  245.638008]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.643547]  ? check_preemption_disabled+0x48/0x280
[  245.648571]  ? __lock_is_held+0xb5/0x140
[  245.652648]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.658189]  ? check_preemption_disabled+0x48/0x280
[  245.663206]  run_timer_softirq+0x52/0xb0
[  245.667270]  ? rcu_read_lock_sched_held+0x14f/0x180
[  245.672285]  __do_softirq+0x308/0xb7e
[  245.676091]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  245.680581]  ? lock_downgrade+0x900/0x900
[  245.684728]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  245.689836]  ? pvclock_read_flags+0x160/0x160
[  245.694333]  ? lapic_next_event+0x5a/0x90
[  245.698486]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.704031]  ? kvm_clock_read+0x18/0x30
[  245.708009]  ? kvm_sched_clock_read+0x9/0x20
[  245.712452]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.718001]  ? check_preemption_disabled+0x48/0x280
[  245.723035]  irq_exit+0x17f/0x1c0
[  245.726494]  smp_apic_timer_interrupt+0x1cb/0x760
[  245.731333]  ? smp_reschedule_interrupt+0x109/0x650
[  245.736346]  ? smp_call_function_single_interrupt+0x650/0x650
[  245.742232]  ? interrupt_entry+0xb5/0xc0
[  245.746305]  ? trace_hardirqs_off_caller+0xbb/0x310
[  245.751333]  ? trace_hardirqs_off_caller+0xbb/0x310
[  245.756362]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  245.761206]  ? trace_hardirqs_on_caller+0x310/0x310
[  245.766219]  ? trace_hardirqs_on_caller+0x310/0x310
[  245.771235]  ? task_prio+0x50/0x50
[  245.774772]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.780308]  ? check_preemption_disabled+0x48/0x280
[  245.785325]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  245.790176]  apic_timer_interrupt+0xf/0x20
[  245.794403]  </IRQ>
[  245.796647] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  245.801585] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  245.820512] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  245.828227] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  245.835511] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  245.842776] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  245.850043] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  245.857322] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  245.864622]  skb_clone+0x1bb/0x500
[  245.868174]  ? skb_split+0x11e0/0x11e0
[  245.872067]  ? preempt_notifier_register+0x200/0x200
[  245.877165]  ? __switch_to_asm+0x34/0x70
[  245.881223]  ? __switch_to_asm+0x34/0x70
[  245.885280]  ? __switch_to_asm+0x40/0x70
[  245.889340]  ? __switch_to_asm+0x34/0x70
[  245.893395]  ? __switch_to_asm+0x40/0x70
[  245.897456]  ? __switch_to_asm+0x40/0x70
[  245.901513]  ? __switch_to_asm+0x34/0x70
[  245.905570]  ? __switch_to_asm+0x34/0x70
[  245.909627]  ? __switch_to_asm+0x40/0x70
[  245.913697]  ? __switch_to_asm+0x34/0x70
[  245.917764]  bpf_clone_redirect+0xb9/0x490
[  245.922011]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  245.927042]  ? __sched_text_start+0x8/0x8
[  245.931207]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  245.935790]  ? retint_kernel+0x2d/0x2d
[  245.939700]  ? trace_hardirqs_on_caller+0xc0/0x310
[  245.944645]  ? find_held_lock+0x36/0x1c0
[  245.948719]  ? lock_acquire+0x1ed/0x520
[  245.952694]  ? bpf_test_run+0x3cb/0x780
[  245.956675]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.962212]  ? check_preemption_disabled+0x48/0x280
[  245.967233]  ? kasan_check_read+0x11/0x20
[  245.971381]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  245.976667]  ? rcu_softirq_qs+0x20/0x20
[  245.980647]  ? preempt_schedule+0x4d/0x60
[  245.984797]  ? ___preempt_schedule+0x16/0x18
[  245.989216]  ? bpf_test_run+0x25d/0x780
[  245.993204]  ? netlink_diag_dump+0x2a0/0x2a0
[  245.997612]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  246.003153]  ? bpf_test_init.isra.10+0x70/0x100
[  246.007827]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  246.012597]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  246.017447]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  246.022992]  ? fput+0x130/0x1a0
[  246.026305]  ? __bpf_prog_get+0x9b/0x290
[  246.030383]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  246.035241]  ? bpf_prog_test_run+0x130/0x1a0
[  246.039667]  ? __x64_sys_bpf+0x3db/0x520
[  246.043731]  ? bpf_prog_get+0x20/0x20
[  246.047553]  ? do_syscall_64+0x1b9/0x820
[  246.051611]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  246.056986]  ? syscall_return_slowpath+0x5e0/0x5e0
[  246.061914]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  246.066779]  ? trace_hardirqs_on_caller+0x310/0x310
[  246.071799]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  246.076814]  ? prepare_exit_to_usermode+0x291/0x3b0
[  246.081838]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  246.086707]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  246.092092] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  246.092097] warn_alloc_show_mem: 1 callbacks suppressed
[  246.092104] Mem-Info:
[  246.099120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  246.104497] active_anon:57128 inactive_anon:971 isolated_anon:0
[  246.104497]  active_file:40 inactive_file:20 isolated_file:0
[  246.104497]  unevictable:0 dirty:11 writeback:0 unstable:0
[  246.104497]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  246.104497]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  246.104497]  free:13615 free_pcp:64 free_cma:0
[  246.106869] Call Trace:
[  246.116267] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  246.149195]  <IRQ>
[  246.151760] 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
[  246.179684]  dump_stack+0x244/0x39d
[  246.181811] lowmem_reserve[]: 0 2818 6321 6321
[  246.207931]  ? dump_stack_print_info.cold.1+0x20/0x20
[  246.211529] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  246.216106]  warn_alloc.cold.116+0xb7/0x1bd
[  246.221259] lowmem_reserve[]: 0 0 3503 3503
[  246.248753]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  246.253080] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  246.257392]  ? lock_downgrade+0x900/0x900
[  246.262205] lowmem_reserve[]: 0 0 0 0
[  246.291348]  ? trace_hardirqs_off+0xb8/0x310
[  246.295483] 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
[  246.299276]  ? trace_hardirqs_off+0xb8/0x310
[  246.303669] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  246.317188]  __alloc_pages_slowpath+0x2651/0x2de0
[  246.321564] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  246.336670]  ? warn_alloc+0x120/0x120
[  246.341473] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  246.356989]  ? print_usage_bug+0xc0/0xc0
[  246.360791] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  246.369614]  ? warn_alloc+0x120/0x120
[  246.373660] 5171 total pagecache pages
[  246.382282]  ? warn_alloc+0x120/0x120
[  246.386060] 0 pages in swap cache
[  246.389931]  ? print_usage_bug+0xc0/0xc0
[  246.393713] Swap cache stats: add 0, delete 0, find 0/0
[  246.397196]  ? kvm_clock_read+0x18/0x30
[  246.401230] Free swap  = 0kB
[  246.406585]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  246.410535] Total swap = 0kB
[  246.413543]  ? print_usage_bug+0xc0/0xc0
[  246.418535] 1965979 pages RAM
[  246.421546]  ? __lock_acquire+0x62f/0x4c20
[  246.425583] 0 pages HighMem/MovableOnly
[  246.428684]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  246.432890] 342854 pages reserved
[  246.436857]  ? should_fail+0x22d/0xd01
[  246.442369] 0 pages cma reserved
[  246.445842]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  246.449798] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  246.453073]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  246.453088]  ? __lock_acquire+0x62f/0x4c20
[  246.453105]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  246.458412] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  246.464838]  ? __lock_acquire+0x62f/0x4c20
[  246.469917] syz-executor2 cpuset=syz2 mems_allowed=0
[  246.474143]  ? should_fail+0x22d/0xd01
[  246.502908]  ? rcu_irq_exit+0x1a2/0x390
[  246.506892]  ? mark_held_locks+0x130/0x130
[  246.511129]  ? mark_held_locks+0x130/0x130
[  246.515371]  ? mark_held_locks+0xc7/0x130
[  246.519516]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  246.524533]  ? zap_class+0x640/0x640
[  246.528247]  ? print_usage_bug+0xc0/0xc0
[  246.532314]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.537853]  ? check_preemption_disabled+0x48/0x280
[  246.542877]  ? __lock_is_held+0xb5/0x140
[  246.546943]  __alloc_pages_nodemask+0xad8/0xea0
[  246.551620]  ? zap_class+0x640/0x640
[  246.555347]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  246.560374]  ? find_held_lock+0x36/0x1c0
[  246.564445]  ? ____cache_alloc_node+0x1c7/0x1e0
[  246.569112]  ? lock_downgrade+0x900/0x900
[  246.573263]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.578808]  cache_grow_begin+0xa5/0x8c0
[  246.582866]  ? do_raw_spin_unlock+0xa7/0x330
[  246.587277]  fallback_alloc+0x204/0x2e0
[  246.591253]  ____cache_alloc_node+0x1c7/0x1e0
[  246.595753]  kmem_cache_alloc_node+0xe3/0x730
[  246.600252]  ? ipv6_get_ifaddr+0x42e/0x620
[  246.604498]  __alloc_skb+0x119/0x770
[  246.608208]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  246.613489]  ? netdev_alloc_frag+0x1f0/0x1f0
[  246.617897]  ? lock_downgrade+0x900/0x900
[  246.622060]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.627647]  ? refcount_sub_and_test_checked+0x203/0x310
[  246.633114]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  246.638566]  ? addrconf_rs_timer+0x690/0x690
[  246.642984]  ndisc_alloc_skb+0x144/0x340
[  246.647050]  ndisc_send_rs+0x331/0x6e0
[  246.650941]  addrconf_rs_timer+0x314/0x690
[  246.655184]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  246.659439]  call_timer_fn+0x272/0x920
[  246.663323]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  246.667556]  ? process_timeout+0x40/0x40
[  246.671676]  ? mark_held_locks+0xc7/0x130
[  246.675825]  ? _raw_spin_unlock_irq+0x27/0x80
[  246.680320]  ? _raw_spin_unlock_irq+0x27/0x80
[  246.684813]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  246.689059]  ? lockdep_hardirqs_on+0x296/0x5b0
[  246.693681]  ? trace_hardirqs_on+0xbd/0x310
[  246.698020]  ? kasan_check_read+0x11/0x20
[  246.702183]  ? __run_timers+0x7da/0xc70
[  246.706161]  ? trace_hardirqs_off_caller+0x310/0x310
[  246.711266]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  246.715506]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  246.719735]  __run_timers+0x7e5/0xc70
[  246.723549]  ? timer_fixup_init+0x70/0x70
[  246.727699]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  246.732713]  ? zap_class+0x640/0x640
[  246.736434]  ? print_usage_bug+0xc0/0xc0
[  246.740499]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  246.745698]  ? find_held_lock+0x36/0x1c0
[  246.749765]  ? zap_class+0x640/0x640
[  246.754012]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.759554]  ? check_preemption_disabled+0x48/0x280
[  246.764581]  ? __lock_is_held+0xb5/0x140
[  246.768648]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.774199]  ? check_preemption_disabled+0x48/0x280
[  246.779241]  run_timer_softirq+0x52/0xb0
[  246.783300]  ? rcu_read_lock_sched_held+0x14f/0x180
[  246.788314]  __do_softirq+0x308/0xb7e
[  246.792113]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  246.796626]  ? lock_downgrade+0x900/0x900
[  246.800789]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  246.805902]  ? pvclock_read_flags+0x160/0x160
[  246.810398]  ? lapic_next_event+0x5a/0x90
[  246.814550]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.820091]  ? kvm_clock_read+0x18/0x30
[  246.824125]  ? kvm_sched_clock_read+0x9/0x20
[  246.828557]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.834095]  ? check_preemption_disabled+0x48/0x280
[  246.839165]  irq_exit+0x17f/0x1c0
[  246.842623]  smp_apic_timer_interrupt+0x1cb/0x760
[  246.847470]  ? smp_reschedule_interrupt+0x109/0x650
[  246.852487]  ? smp_call_function_single_interrupt+0x650/0x650
[  246.858366]  ? interrupt_entry+0xb5/0xc0
[  246.862428]  ? trace_hardirqs_off_caller+0xbb/0x310
[  246.867442]  ? trace_hardirqs_off_caller+0xbb/0x310
[  246.872457]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  246.877298]  ? trace_hardirqs_on_caller+0x310/0x310
[  246.882309]  ? trace_hardirqs_on_caller+0x310/0x310
[  246.887323]  ? task_prio+0x50/0x50
[  246.890881]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.896420]  ? check_preemption_disabled+0x48/0x280
[  246.901438]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  246.906287]  apic_timer_interrupt+0xf/0x20
[  246.910512]  </IRQ>
[  246.912753] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  246.917942] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  246.936839] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  246.944541] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  246.951807] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  246.959072] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  246.966371] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  246.973660] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  246.980958]  retint_kernel+0x1b/0x2d
[  246.984677] RIP: 0010:dump_stack+0x358/0x39d
[  246.989099] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  247.007993] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  247.015697] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  247.022964] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  247.030247] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  247.037509] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  247.044775] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  247.052074]  ? dump_stack+0x34f/0x39d
[  247.055890]  ? dump_stack_print_info.cold.1+0x20/0x20
[  247.061080]  ? mark_held_locks+0x130/0x130
[  247.065332]  ? mark_held_locks+0x130/0x130
[  247.069573]  dump_header+0x27b/0xf72
[  247.073296]  ? pagefault_out_of_memory+0x197/0x197
[  247.078235]  ? __lock_acquire+0x62f/0x4c20
[  247.082491]  ? print_usage_bug+0xc0/0xc0
[  247.086556]  ? zap_class+0x640/0x640
[  247.090274]  ? print_usage_bug+0xc0/0xc0
[  247.094332]  ? print_usage_bug+0xc0/0xc0
[  247.098397]  ? print_usage_bug+0xc0/0xc0
[  247.102463]  ? find_held_lock+0x36/0x1c0
[  247.106535]  ? mark_held_locks+0xc7/0x130
[  247.110684]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  247.115789]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  247.120895]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  247.125477]  ? trace_hardirqs_on+0xbd/0x310
[  247.129813]  ? kasan_check_read+0x11/0x20
[  247.133960]  ? ___ratelimit+0x3b4/0x672
[  247.137936]  ? trace_hardirqs_off_caller+0x310/0x310
[  247.143039]  ? trace_hardirqs_on+0x310/0x310
[  247.147445]  ? lock_downgrade+0x900/0x900
[  247.151596]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  247.156697]  ? ___ratelimit+0x3b9/0x672
[  247.160689]  ? idr_get_free+0xf70/0xf70
[  247.164689]  ? kasan_check_read+0x11/0x20
[  247.168878]  ? do_raw_spin_unlock+0xa7/0x330
[  247.173294]  oom_kill_process.cold.27+0x10/0x903
[  247.178050]  ? zap_class+0x640/0x640
[  247.181764]  ? _raw_spin_unlock+0x2c/0x50
[  247.185936]  ? oom_badness+0xe6/0xaa0
[  247.189743]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  247.194675]  ? kasan_check_read+0x11/0x20
[  247.198819]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  247.204100]  ? oom_evaluate_task+0x540/0x540
[  247.208508]  ? find_held_lock+0x36/0x1c0
[  247.212579]  ? out_of_memory+0x974/0x1430
[  247.216728]  ? lock_downgrade+0x900/0x900
[  247.220877]  ? check_preemption_disabled+0x48/0x280
[  247.225909]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  247.230837]  ? kasan_check_read+0x11/0x20
[  247.234981]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  247.240255]  ? rcu_softirq_qs+0x20/0x20
[  247.244233]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  247.249765]  ? oom_evaluate_task+0x302/0x540
[  247.254177]  out_of_memory+0xa84/0x1430
[  247.258160]  ? oom_killer_disable+0x3a0/0x3a0
[  247.262656]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  247.267589]  ? __ww_mutex_check_waiters+0x160/0x160
[  247.272612]  __alloc_pages_slowpath+0x232c/0x2de0
[  247.277491]  ? warn_alloc+0x120/0x120
[  247.281289]  ? mark_held_locks+0x130/0x130
[  247.285544]  ? find_get_entry+0xaae/0x1120
[  247.289789]  ? filemap_map_pages+0x1a20/0x1a20
[  247.294387]  ? zap_class+0x640/0x640
[  247.298108]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.303674]  ? check_preemption_disabled+0x48/0x280
[  247.308691]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  247.314225]  ? should_fail+0x22d/0xd01
[  247.318118]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  247.323216]  ? zap_class+0x640/0x640
[  247.326965]  ? __lock_is_held+0xb5/0x140
[  247.331062]  ? mark_held_locks+0x130/0x130
[  247.335297]  ? lock_release+0xa00/0xa00
[  247.339268]  ? perf_trace_sched_process_exec+0x860/0x860
[  247.344744]  ? xa_load+0x2ba/0x460
[  247.348284]  ? lock_downgrade+0x900/0x900
[  247.352435]  ? __might_sleep+0x95/0x190
[  247.356415]  __alloc_pages_nodemask+0xad8/0xea0
[  247.361088]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  247.366103]  ? __page_cache_alloc+0x191/0x5c0
[  247.370594]  ? xa_load+0x2e1/0x460
[  247.374132]  ? xa_clear_mark+0x40/0x40
[  247.378027]  ? zap_class+0x640/0x640
[  247.381790]  ? zap_class+0x640/0x640
[  247.385501]  ? zap_class+0x640/0x640
[  247.389215]  ? __do_page_cache_readahead+0x663/0x810
[  247.394323]  ? find_held_lock+0x36/0x1c0
[  247.398391]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  247.403937]  alloc_pages_current+0x173/0x350
[  247.408350]  __page_cache_alloc+0x38c/0x5c0
[  247.412667]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  247.417593]  ? kasan_check_read+0x11/0x20
[  247.421737]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  247.427029]  ? generic_perform_write+0x6a0/0x6a0
[  247.431789]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  247.437326]  ? check_preemption_disabled+0x48/0x280
[  247.442349]  filemap_fault+0x1595/0x25f0
[  247.446420]  ? __lock_page_or_retry+0xa00/0xa00
[  247.451088]  ? mark_held_locks+0x130/0x130
[  247.455347]  ? filemap_map_pages+0xd6b/0x1a20
[  247.459845]  ? lock_downgrade+0x900/0x900
[  247.463993]  ? check_preemption_disabled+0x48/0x280
[  247.469009]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  247.473934]  ? kasan_check_read+0x11/0x20
[  247.478079]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  247.483367]  ? rcu_softirq_qs+0x20/0x20
[  247.487352]  ? filemap_map_pages+0xd92/0x1a20
[  247.491858]  ? find_get_entries_tag+0x1400/0x1400
[  247.496711]  ? debug_object_destroy+0x2b0/0x2b0
[  247.501382]  ? lock_pi_update_atomic+0x150/0x150
[  247.506136]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.511692]  ? lock_acquire+0x1ed/0x520
[  247.515665]  ? ext4_filemap_fault+0x7a/0xad
[  247.519993]  ? lock_release+0xa00/0xa00
[  247.523976]  ? perf_trace_sched_process_exec+0x860/0x860
[  247.529441]  ? print_usage_bug+0xc0/0xc0
[  247.533501]  ? print_usage_bug+0xc0/0xc0
[  247.537571]  ? down_read+0x8d/0x120
[  247.541195]  ? ext4_filemap_fault+0x7a/0xad
[  247.545512]  ? __down_interruptible+0x700/0x700
[  247.550195]  ext4_filemap_fault+0x82/0xad
[  247.554375]  __do_fault+0x100/0x6b0
[  247.558008]  ? pmd_devmap_trans_unstable+0x220/0x220
[  247.563125]  ? mark_held_locks+0x130/0x130
[  247.567375]  ? mark_held_locks+0x130/0x130
[  247.571624]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  247.576400]  ? retint_kernel+0x2d/0x2d
[  247.580299]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  247.585839]  __handle_mm_fault+0x3ea0/0x5be0
[  247.590245]  ? perf_trace_lock+0x7a0/0x7a0
[  247.594487]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  247.599339]  ? __switch_to_asm+0x34/0x70
[  247.603400]  ? __switch_to_asm+0x34/0x70
[  247.607475]  ? zap_class+0x640/0x640
[  247.611189]  ? zap_class+0x640/0x640
[  247.614904]  ? __x64_sys_futex+0x53e/0x6a0
[  247.619143]  ? find_held_lock+0x36/0x1c0
[  247.623236]  ? handle_mm_fault+0x42a/0xc70
[  247.627486]  ? lock_downgrade+0x900/0x900
[  247.631638]  ? check_preemption_disabled+0x48/0x280
[  247.636665]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  247.641591]  ? kasan_check_read+0x11/0x20
[  247.645738]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  247.651016]  ? rcu_softirq_qs+0x20/0x20
[  247.655003]  ? trace_hardirqs_off_caller+0x310/0x310
[  247.660109]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  247.665651]  ? check_preemption_disabled+0x48/0x280
[  247.670673]  handle_mm_fault+0x54f/0xc70
[  247.674757]  ? __handle_mm_fault+0x5be0/0x5be0
[  247.679360]  ? find_vma+0x34/0x190
[  247.682903]  __do_page_fault+0x5e8/0xe60
[  247.686964]  ? trace_hardirqs_off+0xb8/0x310
[  247.691386]  do_page_fault+0xf2/0x7e0
[  247.695189]  ? vmalloc_sync_all+0x30/0x30
[  247.699334]  ? error_entry+0x70/0xd0
[  247.703139]  ? trace_hardirqs_off_caller+0xbb/0x310
[  247.708175]  ? trace_hardirqs_on_caller+0xc0/0x310
[  247.713099]  ? syscall_return_slowpath+0x5e0/0x5e0
[  247.718029]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  247.722874]  ? trace_hardirqs_on_caller+0x310/0x310
[  247.727891]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  247.733344]  ? prepare_exit_to_usermode+0x291/0x3b0
[  247.738377]  ? page_fault+0x8/0x30
[  247.741931]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  247.746775]  ? page_fault+0x8/0x30
[  247.750321]  page_fault+0x1e/0x30
[  247.753769] RIP: 0033:0x4290d7
[  247.756973] Code: Bad RIP value.
[  247.760328] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  247.765697] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  247.772963] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  247.780224] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  247.787485] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  247.794762] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  247.802068] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  247.802161] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  247.809340] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  247.809349] Call Trace:
[  247.815907] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  247.825195]  <IRQ>
[  247.827764] syz-fuzzer cpuset=/ mems_allowed=0
[  247.837996]  dump_stack+0x244/0x39d
[  247.848341]  ? dump_stack_print_info.cold.1+0x20/0x20
[  247.853544]  warn_alloc.cold.116+0xb7/0x1bd
[  247.857879]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  247.862740]  ? lock_downgrade+0x900/0x900
[  247.866893]  ? trace_hardirqs_off+0xb8/0x310
[  247.871304]  ? trace_hardirqs_off+0xb8/0x310
[  247.875719]  __alloc_pages_slowpath+0x2651/0x2de0
[  247.880602]  ? warn_alloc+0x120/0x120
[  247.884410]  ? print_usage_bug+0xc0/0xc0
[  247.888485]  ? warn_alloc+0x120/0x120
[  247.892288]  ? warn_alloc+0x120/0x120
[  247.896092]  ? print_usage_bug+0xc0/0xc0
[  247.900154]  ? print_usage_bug+0xc0/0xc0
[  247.904215]  ? __lock_acquire+0x62f/0x4c20
[  247.908455]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  247.914000]  ? should_fail+0x22d/0xd01
[  247.917892]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  247.922994]  ? __lock_acquire+0x62f/0x4c20
[  247.927232]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  247.932331]  ? __lock_acquire+0x62f/0x4c20
[  247.936561]  ? should_fail+0x22d/0xd01
[  247.940448]  ? find_held_lock+0x36/0x1c0
[  247.944515]  ? mark_held_locks+0x130/0x130
[  247.948756]  ? mark_held_locks+0x130/0x130
[  247.952991]  ? zap_class+0x640/0x640
[  247.956702]  ? zap_class+0x640/0x640
[  247.960415]  ? print_usage_bug+0xc0/0xc0
[  247.964487]  ? do_raw_spin_unlock+0xa7/0x330
[  247.968895]  ? zap_class+0x640/0x640
[  247.972610]  ? print_usage_bug+0xc0/0xc0
[  247.976695]  ? wq_watchdog_touch+0x9c/0xfe
[  247.980931]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.986466]  ? check_preemption_disabled+0x48/0x280
[  247.991498]  ? __lock_is_held+0xb5/0x140
[  247.995577]  __alloc_pages_nodemask+0xad8/0xea0
[  248.000241]  ? zap_class+0x640/0x640
[  248.003956]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  248.009010]  ? find_held_lock+0x36/0x1c0
[  248.013078]  ? ____cache_alloc_node+0x1c7/0x1e0
[  248.017751]  ? lock_downgrade+0x900/0x900
[  248.021904]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.027442]  cache_grow_begin+0xa5/0x8c0
[  248.031497]  ? do_raw_spin_unlock+0xa7/0x330
[  248.035910]  fallback_alloc+0x204/0x2e0
[  248.039895]  ____cache_alloc_node+0x1c7/0x1e0
[  248.044399]  kmem_cache_alloc_node+0xe3/0x730
[  248.048897]  ? ipv6_get_ifaddr+0x42e/0x620
[  248.053157]  __alloc_skb+0x119/0x770
[  248.056867]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  248.062153]  ? netdev_alloc_frag+0x1f0/0x1f0
[  248.066566]  ? lock_downgrade+0x900/0x900
[  248.070722]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.076257]  ? refcount_sub_and_test_checked+0x203/0x310
[  248.081712]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  248.087160]  ? addrconf_rs_timer+0x690/0x690
[  248.091584]  ndisc_alloc_skb+0x144/0x340
[  248.095664]  ndisc_send_rs+0x331/0x6e0
[  248.099562]  addrconf_rs_timer+0x314/0x690
[  248.103802]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.108048]  call_timer_fn+0x272/0x920
[  248.111952]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.116223]  ? process_timeout+0x40/0x40
[  248.120291]  ? __run_timers+0x7da/0xc70
[  248.124265]  ? _raw_spin_unlock_irq+0x27/0x80
[  248.128759]  ? _raw_spin_unlock_irq+0x27/0x80
[  248.133252]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.137489]  ? lockdep_hardirqs_on+0x296/0x5b0
[  248.142075]  ? trace_hardirqs_on+0xbd/0x310
[  248.146395]  ? kasan_check_read+0x11/0x20
[  248.150544]  ? __run_timers+0x7da/0xc70
[  248.154554]  ? trace_hardirqs_off_caller+0x310/0x310
[  248.159679]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.163923]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.168186]  __run_timers+0x7e5/0xc70
[  248.171993]  ? timer_fixup_init+0x70/0x70
[  248.176149]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  248.181165]  ? zap_class+0x640/0x640
[  248.184883]  ? enqueue_hrtimer+0x1a5/0x560
[  248.189146]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  248.194365]  ? find_held_lock+0x36/0x1c0
[  248.198427]  ? zap_class+0x640/0x640
[  248.202140]  ? pvclock_read_flags+0x160/0x160
[  248.206646]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.212197]  ? check_preemption_disabled+0x48/0x280
[  248.217220]  ? __lock_is_held+0xb5/0x140
[  248.221282]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.226819]  ? check_preemption_disabled+0x48/0x280
[  248.231837]  run_timer_softirq+0x52/0xb0
[  248.235897]  ? rcu_read_lock_sched_held+0x14f/0x180
[  248.240914]  __do_softirq+0x308/0xb7e
[  248.244716]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  248.249206]  ? lock_downgrade+0x900/0x900
[  248.253358]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  248.258496]  ? pvclock_read_flags+0x160/0x160
[  248.262995]  ? lapic_next_event+0x5a/0x90
[  248.267144]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.272690]  ? kvm_clock_read+0x18/0x30
[  248.276673]  ? kvm_sched_clock_read+0x9/0x20
[  248.281081]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.286619]  ? check_preemption_disabled+0x48/0x280
[  248.291664]  irq_exit+0x17f/0x1c0
[  248.295134]  smp_apic_timer_interrupt+0x1cb/0x760
[  248.299989]  ? smp_reschedule_interrupt+0x109/0x650
[  248.305004]  ? smp_call_function_single_interrupt+0x650/0x650
[  248.310891]  ? interrupt_entry+0xb5/0xc0
[  248.314954]  ? trace_hardirqs_off_caller+0xbb/0x310
[  248.319982]  ? trace_hardirqs_off_caller+0xbb/0x310
[  248.324997]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  248.329849]  ? trace_hardirqs_on_caller+0x310/0x310
[  248.334865]  ? trace_hardirqs_on_caller+0x310/0x310
[  248.339877]  ? task_prio+0x50/0x50
[  248.343420]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.348962]  ? check_preemption_disabled+0x48/0x280
[  248.353985]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  248.358833]  apic_timer_interrupt+0xf/0x20
[  248.363074]  </IRQ>
[  248.365311] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  248.370244] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  248.389168] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  248.396872] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  248.404162] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  248.411445] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  248.418713] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  248.425988] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  248.433296]  skb_clone+0x1bb/0x500
[  248.436836]  ? skb_split+0x11e0/0x11e0
[  248.440726]  ? preempt_notifier_register+0x200/0x200
[  248.445827]  ? __switch_to_asm+0x34/0x70
[  248.449887]  ? __switch_to_asm+0x34/0x70
[  248.453943]  ? __switch_to_asm+0x40/0x70
[  248.458005]  ? __switch_to_asm+0x34/0x70
[  248.462060]  ? __switch_to_asm+0x40/0x70
[  248.466131]  ? __switch_to_asm+0x40/0x70
[  248.470207]  ? __switch_to_asm+0x34/0x70
[  248.474266]  ? __switch_to_asm+0x34/0x70
[  248.478320]  ? __switch_to_asm+0x40/0x70
[  248.482378]  ? __switch_to_asm+0x34/0x70
[  248.486446]  bpf_clone_redirect+0xb9/0x490
[  248.490689]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  248.495710]  ? __sched_text_start+0x8/0x8
[  248.499860]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  248.504439]  ? retint_kernel+0x2d/0x2d
[  248.508339]  ? trace_hardirqs_on_caller+0xc0/0x310
[  248.513293]  ? find_held_lock+0x36/0x1c0
[  248.517362]  ? lock_acquire+0x1ed/0x520
[  248.521338]  ? bpf_test_run+0x3cb/0x780
[  248.525354]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.530891]  ? check_preemption_disabled+0x48/0x280
[  248.535910]  ? kasan_check_read+0x11/0x20
[  248.540062]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  248.545366]  ? rcu_softirq_qs+0x20/0x20
[  248.549357]  ? preempt_schedule+0x4d/0x60
[  248.553507]  ? ___preempt_schedule+0x16/0x18
[  248.557925]  ? bpf_test_run+0x25d/0x780
[  248.561908]  ? netlink_diag_dump+0x2a0/0x2a0
[  248.566317]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  248.571852]  ? bpf_test_init.isra.10+0x70/0x100
[  248.576529]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  248.581318]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  248.586154]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  248.591689]  ? fput+0x130/0x1a0
[  248.594971]  ? __bpf_prog_get+0x9b/0x290
[  248.599034]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  248.603895]  ? bpf_prog_test_run+0x130/0x1a0
[  248.608301]  ? __x64_sys_bpf+0x3db/0x520
[  248.612373]  ? bpf_prog_get+0x20/0x20
[  248.616212]  ? do_syscall_64+0x1b9/0x820
[  248.620686]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  248.626068]  ? syscall_return_slowpath+0x5e0/0x5e0
[  248.630994]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  248.635836]  ? trace_hardirqs_on_caller+0x310/0x310
[  248.640851]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  248.645867]  ? prepare_exit_to_usermode+0x291/0x3b0
[  248.650894]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  248.655743]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  248.661128] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  248.661133] warn_alloc_show_mem: 1 callbacks suppressed
[  248.661140] Mem-Info:
[  248.668148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  248.673515] active_anon:57128 inactive_anon:971 isolated_anon:0
[  248.673515]  active_file:40 inactive_file:20 isolated_file:0
[  248.673515]  unevictable:0 dirty:11 writeback:0 unstable:0
[  248.673515]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  248.673515]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  248.673515]  free:13615 free_pcp:64 free_cma:0
[  248.675887] Call Trace:
[  248.685271] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  248.718195]  <IRQ>
[  248.720761] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  248.748687]  dump_stack+0x244/0x39d
[  248.750807] lowmem_reserve[]: 0 2818 6321 6321
[  248.777388]  ? dump_stack_print_info.cold.1+0x20/0x20
[  248.781008] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  248.785603]  warn_alloc.cold.116+0xb7/0x1bd
[  248.790777] lowmem_reserve[]: 0 0 3503 3503
[  248.818267]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  248.822563] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  248.826894]  ? lock_downgrade+0x900/0x900
[  248.831710] lowmem_reserve[]: 0 0 0 0
[  248.860855]  ? trace_hardirqs_off+0xb8/0x310
[  248.864976] 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
[  248.868802]  ? trace_hardirqs_off+0xb8/0x310
[  248.873198] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  248.886738]  __alloc_pages_slowpath+0x2651/0x2de0
[  248.891120] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  248.906218]  ? warn_alloc+0x120/0x120
[  248.911022] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  248.926538]  ? print_usage_bug+0xc0/0xc0
[  248.930322] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  248.939140]  ? warn_alloc+0x120/0x120
[  248.943179] 5171 total pagecache pages
[  248.951747]  ? warn_alloc+0x120/0x120
[  248.955524] 0 pages in swap cache
[  248.959395]  ? print_usage_bug+0xc0/0xc0
[  248.963262] Swap cache stats: add 0, delete 0, find 0/0
[  248.966704]  ? kvm_clock_read+0x18/0x30
[  248.970744] Free swap  = 0kB
[  248.976094]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  248.980055] Total swap = 0kB
[  248.983063]  ? print_usage_bug+0xc0/0xc0
[  248.988071] 1965979 pages RAM
[  248.991083]  ? __lock_acquire+0x62f/0x4c20
[  248.995115] 0 pages HighMem/MovableOnly
[  248.998213]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  249.002419] 342854 pages reserved
[  249.006386]  ? should_fail+0x22d/0xd01
[  249.011895] 0 pages cma reserved
[  249.015341]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  249.019263] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  249.022558]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  249.022572]  ? __lock_acquire+0x62f/0x4c20
[  249.022588]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  249.027893] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  249.034322]  ? __lock_acquire+0x62f/0x4c20
[  249.039399] syz-executor2 cpuset=syz2 mems_allowed=0
[  249.043626]  ? should_fail+0x22d/0xd01
[  249.072368]  ? rcu_irq_exit+0x1a2/0x390
[  249.076349]  ? mark_held_locks+0x130/0x130
[  249.080585]  ? mark_held_locks+0x130/0x130
[  249.084831]  ? mark_held_locks+0xc7/0x130
[  249.088976]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  249.093989]  ? zap_class+0x640/0x640
[  249.097706]  ? print_usage_bug+0xc0/0xc0
[  249.101769]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.107305]  ? check_preemption_disabled+0x48/0x280
[  249.112331]  ? __lock_is_held+0xb5/0x140
[  249.116398]  __alloc_pages_nodemask+0xad8/0xea0
[  249.121069]  ? zap_class+0x640/0x640
[  249.124793]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  249.129821]  ? find_held_lock+0x36/0x1c0
[  249.133889]  ? ____cache_alloc_node+0x1c7/0x1e0
[  249.138556]  ? lock_downgrade+0x900/0x900
[  249.142707]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.148243]  cache_grow_begin+0xa5/0x8c0
[  249.152299]  ? do_raw_spin_unlock+0xa7/0x330
[  249.156715]  fallback_alloc+0x204/0x2e0
[  249.160699]  ____cache_alloc_node+0x1c7/0x1e0
[  249.165214]  kmem_cache_alloc_node+0xe3/0x730
[  249.169709]  ? ipv6_get_ifaddr+0x42e/0x620
[  249.173960]  __alloc_skb+0x119/0x770
[  249.177677]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  249.182958]  ? netdev_alloc_frag+0x1f0/0x1f0
[  249.187367]  ? lock_downgrade+0x900/0x900
[  249.191522]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.197058]  ? refcount_sub_and_test_checked+0x203/0x310
[  249.202527]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  249.207979]  ? addrconf_rs_timer+0x690/0x690
[  249.212398]  ndisc_alloc_skb+0x144/0x340
[  249.216465]  ndisc_send_rs+0x331/0x6e0
[  249.220356]  addrconf_rs_timer+0x314/0x690
[  249.224611]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  249.228867]  call_timer_fn+0x272/0x920
[  249.232752]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  249.237000]  ? process_timeout+0x40/0x40
[  249.241069]  ? mark_held_locks+0xc7/0x130
[  249.245231]  ? _raw_spin_unlock_irq+0x27/0x80
[  249.249725]  ? _raw_spin_unlock_irq+0x27/0x80
[  249.254219]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  249.258452]  ? lockdep_hardirqs_on+0x296/0x5b0
[  249.263033]  ? trace_hardirqs_on+0xbd/0x310
[  249.267353]  ? kasan_check_read+0x11/0x20
[  249.271498]  ? __run_timers+0x7da/0xc70
[  249.275476]  ? trace_hardirqs_off_caller+0x310/0x310
[  249.280580]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  249.284820]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  249.289049]  __run_timers+0x7e5/0xc70
[  249.292857]  ? timer_fixup_init+0x70/0x70
[  249.297007]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  249.302052]  ? zap_class+0x640/0x640
[  249.305771]  ? print_usage_bug+0xc0/0xc0
[  249.309834]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  249.315030]  ? find_held_lock+0x36/0x1c0
[  249.319109]  ? zap_class+0x640/0x640
[  249.322830]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.328365]  ? check_preemption_disabled+0x48/0x280
[  249.333391]  ? __lock_is_held+0xb5/0x140
[  249.337452]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.342999]  ? check_preemption_disabled+0x48/0x280
[  249.348019]  run_timer_softirq+0x52/0xb0
[  249.352084]  ? rcu_read_lock_sched_held+0x14f/0x180
[  249.357103]  __do_softirq+0x308/0xb7e
[  249.360908]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  249.365397]  ? lock_downgrade+0x900/0x900
[  249.369547]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  249.374664]  ? pvclock_read_flags+0x160/0x160
[  249.379167]  ? lapic_next_event+0x5a/0x90
[  249.383320]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.388861]  ? kvm_clock_read+0x18/0x30
[  249.392840]  ? kvm_sched_clock_read+0x9/0x20
[  249.397250]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.402792]  ? check_preemption_disabled+0x48/0x280
[  249.407817]  irq_exit+0x17f/0x1c0
[  249.411271]  smp_apic_timer_interrupt+0x1cb/0x760
[  249.416141]  ? smp_reschedule_interrupt+0x109/0x650
[  249.421168]  ? smp_call_function_single_interrupt+0x650/0x650
[  249.427050]  ? interrupt_entry+0xb5/0xc0
[  249.431116]  ? trace_hardirqs_off_caller+0xbb/0x310
[  249.436132]  ? trace_hardirqs_off_caller+0xbb/0x310
[  249.441169]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  249.446012]  ? trace_hardirqs_on_caller+0x310/0x310
[  249.451029]  ? trace_hardirqs_on_caller+0x310/0x310
[  249.456044]  ? task_prio+0x50/0x50
[  249.459588]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.465128]  ? check_preemption_disabled+0x48/0x280
[  249.470158]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  249.475009]  apic_timer_interrupt+0xf/0x20
[  249.479240]  </IRQ>
[  249.481482] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  249.486688] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  249.505589] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  249.513295] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  249.520560] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  249.527830] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  249.535095] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  249.542364] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  249.549679]  retint_kernel+0x1b/0x2d
[  249.553399] RIP: 0010:dump_stack+0x358/0x39d
[  249.557804] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  249.576702] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  249.584408] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  249.591673] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  249.598944] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  249.606207] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  249.613475] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  249.620769]  ? dump_stack+0x34f/0x39d
[  249.624586]  ? dump_stack_print_info.cold.1+0x20/0x20
[  249.629835]  ? mark_held_locks+0x130/0x130
[  249.634068]  ? mark_held_locks+0x130/0x130
[  249.638306]  dump_header+0x27b/0xf72
[  249.642036]  ? pagefault_out_of_memory+0x197/0x197
[  249.646975]  ? __lock_acquire+0x62f/0x4c20
[  249.651214]  ? print_usage_bug+0xc0/0xc0
[  249.655281]  ? zap_class+0x640/0x640
[  249.658999]  ? print_usage_bug+0xc0/0xc0
[  249.663060]  ? print_usage_bug+0xc0/0xc0
[  249.667157]  ? print_usage_bug+0xc0/0xc0
[  249.671243]  ? find_held_lock+0x36/0x1c0
[  249.675309]  ? mark_held_locks+0xc7/0x130
[  249.679458]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  249.684560]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  249.689667]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  249.694253]  ? trace_hardirqs_on+0xbd/0x310
[  249.698606]  ? kasan_check_read+0x11/0x20
[  249.702759]  ? ___ratelimit+0x3b4/0x672
[  249.706732]  ? trace_hardirqs_off_caller+0x310/0x310
[  249.711838]  ? trace_hardirqs_on+0x310/0x310
[  249.716252]  ? lock_downgrade+0x900/0x900
[  249.720406]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  249.725510]  ? ___ratelimit+0x3b9/0x672
[  249.729490]  ? idr_get_free+0xf70/0xf70
[  249.733467]  ? kasan_check_read+0x11/0x20
[  249.737613]  ? do_raw_spin_unlock+0xa7/0x330
[  249.742039]  oom_kill_process.cold.27+0x10/0x903
[  249.746797]  ? zap_class+0x640/0x640
[  249.750513]  ? _raw_spin_unlock+0x2c/0x50
[  249.754665]  ? oom_badness+0xe6/0xaa0
[  249.758466]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  249.763394]  ? kasan_check_read+0x11/0x20
[  249.767545]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  249.772824]  ? oom_evaluate_task+0x540/0x540
[  249.777239]  ? find_held_lock+0x36/0x1c0
[  249.781306]  ? out_of_memory+0x974/0x1430
[  249.785454]  ? lock_downgrade+0x900/0x900
[  249.789607]  ? check_preemption_disabled+0x48/0x280
[  249.794642]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  249.799575]  ? kasan_check_read+0x11/0x20
[  249.803722]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  249.809002]  ? rcu_softirq_qs+0x20/0x20
[  249.812982]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  249.818516]  ? oom_evaluate_task+0x302/0x540
[  249.822935]  out_of_memory+0xa84/0x1430
[  249.826926]  ? oom_killer_disable+0x3a0/0x3a0
[  249.831451]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  249.836413]  ? __ww_mutex_check_waiters+0x160/0x160
[  249.841442]  __alloc_pages_slowpath+0x232c/0x2de0
[  249.846317]  ? warn_alloc+0x120/0x120
[  249.850115]  ? mark_held_locks+0x130/0x130
[  249.854354]  ? find_get_entry+0xaae/0x1120
[  249.858598]  ? filemap_map_pages+0x1a20/0x1a20
[  249.863196]  ? zap_class+0x640/0x640
[  249.866916]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.872466]  ? check_preemption_disabled+0x48/0x280
[  249.877483]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  249.883021]  ? should_fail+0x22d/0xd01
[  249.886911]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  249.892016]  ? zap_class+0x640/0x640
[  249.895756]  ? __lock_is_held+0xb5/0x140
[  249.899829]  ? mark_held_locks+0x130/0x130
[  249.904065]  ? lock_release+0xa00/0xa00
[  249.908040]  ? perf_trace_sched_process_exec+0x860/0x860
[  249.913487]  ? xa_load+0x2ba/0x460
[  249.917027]  ? lock_downgrade+0x900/0x900
[  249.921196]  ? __might_sleep+0x95/0x190
[  249.925182]  __alloc_pages_nodemask+0xad8/0xea0
[  249.929869]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  249.934913]  ? __page_cache_alloc+0x191/0x5c0
[  249.939411]  ? xa_load+0x2e1/0x460
[  249.942956]  ? xa_clear_mark+0x40/0x40
[  249.946852]  ? zap_class+0x640/0x640
[  249.950575]  ? zap_class+0x640/0x640
[  249.954290]  ? zap_class+0x640/0x640
[  249.958002]  ? __do_page_cache_readahead+0x663/0x810
[  249.963113]  ? find_held_lock+0x36/0x1c0
[  249.967183]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  249.972726]  alloc_pages_current+0x173/0x350
[  249.977140]  __page_cache_alloc+0x38c/0x5c0
[  249.981491]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  249.986418]  ? kasan_check_read+0x11/0x20
[  249.990580]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  249.995856]  ? generic_perform_write+0x6a0/0x6a0
[  250.000613]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  250.006161]  ? check_preemption_disabled+0x48/0x280
[  250.011203]  filemap_fault+0x1595/0x25f0
[  250.015313]  ? __lock_page_or_retry+0xa00/0xa00
[  250.019988]  ? mark_held_locks+0x130/0x130
[  250.024235]  ? filemap_map_pages+0xd6b/0x1a20
[  250.028732]  ? lock_downgrade+0x900/0x900
[  250.032880]  ? check_preemption_disabled+0x48/0x280
[  250.037899]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  250.042827]  ? kasan_check_read+0x11/0x20
[  250.046974]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  250.052251]  ? rcu_softirq_qs+0x20/0x20
[  250.056238]  ? filemap_map_pages+0xd92/0x1a20
[  250.060750]  ? find_get_entries_tag+0x1400/0x1400
[  250.065596]  ? debug_object_destroy+0x2b0/0x2b0
[  250.070266]  ? lock_pi_update_atomic+0x150/0x150
[  250.075022]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.080575]  ? lock_acquire+0x1ed/0x520
[  250.084552]  ? ext4_filemap_fault+0x7a/0xad
[  250.088883]  ? lock_release+0xa00/0xa00
[  250.092853]  ? perf_trace_sched_process_exec+0x860/0x860
[  250.098305]  ? print_usage_bug+0xc0/0xc0
[  250.102365]  ? print_usage_bug+0xc0/0xc0
[  250.106437]  ? down_read+0x8d/0x120
[  250.110065]  ? ext4_filemap_fault+0x7a/0xad
[  250.114386]  ? __down_interruptible+0x700/0x700
[  250.119065]  ext4_filemap_fault+0x82/0xad
[  250.123218]  __do_fault+0x100/0x6b0
[  250.126883]  ? pmd_devmap_trans_unstable+0x220/0x220
[  250.131990]  ? mark_held_locks+0x130/0x130
[  250.136229]  ? mark_held_locks+0x130/0x130
[  250.140472]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  250.145234]  ? retint_kernel+0x2d/0x2d
[  250.149120]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  250.154695]  __handle_mm_fault+0x3ea0/0x5be0
[  250.159101]  ? perf_trace_lock+0x7a0/0x7a0
[  250.163359]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  250.168211]  ? __switch_to_asm+0x34/0x70
[  250.172271]  ? __switch_to_asm+0x34/0x70
[  250.176344]  ? zap_class+0x640/0x640
[  250.180054]  ? zap_class+0x640/0x640
[  250.183771]  ? __x64_sys_futex+0x53e/0x6a0
[  250.188011]  ? find_held_lock+0x36/0x1c0
[  250.192081]  ? handle_mm_fault+0x42a/0xc70
[  250.196317]  ? lock_downgrade+0x900/0x900
[  250.200467]  ? check_preemption_disabled+0x48/0x280
[  250.205488]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  250.210420]  ? kasan_check_read+0x11/0x20
[  250.214567]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  250.219841]  ? rcu_softirq_qs+0x20/0x20
[  250.223817]  ? trace_hardirqs_off_caller+0x310/0x310
[  250.228922]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  250.234462]  ? check_preemption_disabled+0x48/0x280
[  250.239489]  handle_mm_fault+0x54f/0xc70
[  250.243554]  ? __handle_mm_fault+0x5be0/0x5be0
[  250.248136]  ? find_vma+0x34/0x190
[  250.251696]  __do_page_fault+0x5e8/0xe60
[  250.255761]  ? trace_hardirqs_off+0xb8/0x310
[  250.260185]  do_page_fault+0xf2/0x7e0
[  250.263990]  ? vmalloc_sync_all+0x30/0x30
[  250.268139]  ? error_entry+0x70/0xd0
[  250.271859]  ? trace_hardirqs_off_caller+0xbb/0x310
[  250.276872]  ? trace_hardirqs_on_caller+0xc0/0x310
[  250.281807]  ? syscall_return_slowpath+0x5e0/0x5e0
[  250.286732]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  250.291577]  ? trace_hardirqs_on_caller+0x310/0x310
[  250.296591]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  250.302047]  ? prepare_exit_to_usermode+0x291/0x3b0
[  250.307066]  ? page_fault+0x8/0x30
[  250.310612]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  250.315464]  ? page_fault+0x8/0x30
[  250.319003]  page_fault+0x1e/0x30
[  250.322457] RIP: 0033:0x4290d7
[  250.325671] Code: Bad RIP value.
[  250.329036] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  250.334395] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  250.341663] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  250.349021] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  250.356288] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  250.363563] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  250.370863] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  250.370943] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  250.378132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  250.378141] Call Trace:
[  250.384735] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  250.393972]  <IRQ>
[  250.396540] syz-fuzzer cpuset=/ mems_allowed=0
[  250.406762]  dump_stack+0x244/0x39d
[  250.417079]  ? dump_stack_print_info.cold.1+0x20/0x20
[  250.422287]  warn_alloc.cold.116+0xb7/0x1bd
[  250.426613]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  250.431470]  ? lock_downgrade+0x900/0x900
[  250.435629]  ? trace_hardirqs_off+0xb8/0x310
[  250.440056]  ? trace_hardirqs_off+0xb8/0x310
[  250.444490]  __alloc_pages_slowpath+0x2651/0x2de0
[  250.449365]  ? warn_alloc+0x120/0x120
[  250.453167]  ? print_usage_bug+0xc0/0xc0
[  250.457228]  ? warn_alloc+0x120/0x120
[  250.461031]  ? warn_alloc+0x120/0x120
[  250.464834]  ? print_usage_bug+0xc0/0xc0
[  250.468905]  ? print_usage_bug+0xc0/0xc0
[  250.472971]  ? __lock_acquire+0x62f/0x4c20
[  250.477223]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  250.482770]  ? should_fail+0x22d/0xd01
[  250.486678]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  250.491796]  ? __lock_acquire+0x62f/0x4c20
[  250.496038]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  250.501140]  ? __lock_acquire+0x62f/0x4c20
[  250.505374]  ? should_fail+0x22d/0xd01
[  250.509264]  ? find_held_lock+0x36/0x1c0
[  250.513511]  ? mark_held_locks+0x130/0x130
[  250.517751]  ? mark_held_locks+0x130/0x130
[  250.521982]  ? zap_class+0x640/0x640
[  250.525694]  ? zap_class+0x640/0x640
[  250.529415]  ? print_usage_bug+0xc0/0xc0
[  250.533471]  ? do_raw_spin_unlock+0xa7/0x330
[  250.537881]  ? zap_class+0x640/0x640
[  250.541596]  ? print_usage_bug+0xc0/0xc0
[  250.545664]  ? wq_watchdog_touch+0x9c/0xfe
[  250.549902]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.555440]  ? check_preemption_disabled+0x48/0x280
[  250.560468]  ? __lock_is_held+0xb5/0x140
[  250.564541]  __alloc_pages_nodemask+0xad8/0xea0
[  250.569209]  ? zap_class+0x640/0x640
[  250.572932]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  250.577958]  ? find_held_lock+0x36/0x1c0
[  250.582030]  ? ____cache_alloc_node+0x1c7/0x1e0
[  250.586700]  ? lock_downgrade+0x900/0x900
[  250.590857]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.596400]  cache_grow_begin+0xa5/0x8c0
[  250.600462]  ? do_raw_spin_unlock+0xa7/0x330
[  250.604875]  fallback_alloc+0x204/0x2e0
[  250.608857]  ____cache_alloc_node+0x1c7/0x1e0
[  250.613365]  kmem_cache_alloc_node+0xe3/0x730
[  250.617860]  ? ipv6_get_ifaddr+0x42e/0x620
[  250.622538]  __alloc_skb+0x119/0x770
[  250.626254]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  250.631534]  ? netdev_alloc_frag+0x1f0/0x1f0
[  250.635941]  ? lock_downgrade+0x900/0x900
[  250.640099]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.645647]  ? refcount_sub_and_test_checked+0x203/0x310
[  250.651106]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  250.656558]  ? addrconf_rs_timer+0x690/0x690
[  250.660979]  ndisc_alloc_skb+0x144/0x340
[  250.665043]  ndisc_send_rs+0x331/0x6e0
[  250.668950]  addrconf_rs_timer+0x314/0x690
[  250.673193]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.677441]  call_timer_fn+0x272/0x920
[  250.681332]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.685570]  ? process_timeout+0x40/0x40
[  250.689648]  ? __run_timers+0x7da/0xc70
[  250.693645]  ? _raw_spin_unlock_irq+0x27/0x80
[  250.698149]  ? _raw_spin_unlock_irq+0x27/0x80
[  250.702657]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.706897]  ? lockdep_hardirqs_on+0x296/0x5b0
[  250.711482]  ? trace_hardirqs_on+0xbd/0x310
[  250.715802]  ? kasan_check_read+0x11/0x20
[  250.719951]  ? __run_timers+0x7da/0xc70
[  250.723927]  ? trace_hardirqs_off_caller+0x310/0x310
[  250.729042]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.733275]  __run_timers+0x7e5/0xc70
[  250.737088]  ? timer_fixup_init+0x70/0x70
[  250.741241]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  250.746260]  ? zap_class+0x640/0x640
[  250.749976]  ? enqueue_hrtimer+0x1a5/0x560
[  250.754337]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  250.759533]  ? find_held_lock+0x36/0x1c0
[  250.763601]  ? zap_class+0x640/0x640
[  250.767328]  ? pvclock_read_flags+0x160/0x160
[  250.771826]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.777363]  ? check_preemption_disabled+0x48/0x280
[  250.782391]  ? __lock_is_held+0xb5/0x140
[  250.786466]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.792006]  ? check_preemption_disabled+0x48/0x280
[  250.797030]  run_timer_softirq+0x52/0xb0
[  250.801092]  ? rcu_read_lock_sched_held+0x14f/0x180
[  250.806108]  __do_softirq+0x308/0xb7e
[  250.809914]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  250.814408]  ? lock_downgrade+0x900/0x900
[  250.818588]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  250.823724]  ? pvclock_read_flags+0x160/0x160
[  250.828224]  ? lapic_next_event+0x5a/0x90
[  250.832374]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.837915]  ? kvm_clock_read+0x18/0x30
[  250.841887]  ? kvm_sched_clock_read+0x9/0x20
[  250.846298]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.851836]  ? check_preemption_disabled+0x48/0x280
[  250.856860]  irq_exit+0x17f/0x1c0
[  250.860320]  smp_apic_timer_interrupt+0x1cb/0x760
[  250.865173]  ? smp_reschedule_interrupt+0x109/0x650
[  250.870192]  ? smp_call_function_single_interrupt+0x650/0x650
[  250.876077]  ? interrupt_entry+0xb5/0xc0
[  250.880143]  ? trace_hardirqs_off_caller+0xbb/0x310
[  250.885155]  ? trace_hardirqs_off_caller+0xbb/0x310
[  250.890176]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  250.895020]  ? trace_hardirqs_on_caller+0x310/0x310
[  250.900051]  ? trace_hardirqs_on_caller+0x310/0x310
[  250.905074]  ? task_prio+0x50/0x50
[  250.908612]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.914163]  ? check_preemption_disabled+0x48/0x280
[  250.919187]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  250.924071]  apic_timer_interrupt+0xf/0x20
[  250.928299]  </IRQ>
[  250.930536] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  250.935467] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  250.954366] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  250.962080] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  250.969358] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  250.976627] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  250.983930] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  250.991197] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  250.998506]  skb_clone+0x1bb/0x500
[  251.002050]  ? skb_split+0x11e0/0x11e0
[  251.005957]  ? preempt_notifier_register+0x200/0x200
[  251.011059]  ? __switch_to_asm+0x34/0x70
[  251.015134]  ? __switch_to_asm+0x34/0x70
[  251.019192]  ? __switch_to_asm+0x40/0x70
[  251.023249]  ? __switch_to_asm+0x34/0x70
[  251.027312]  ? __switch_to_asm+0x40/0x70
[  251.031370]  ? __switch_to_asm+0x40/0x70
[  251.035429]  ? __switch_to_asm+0x34/0x70
[  251.039489]  ? __switch_to_asm+0x34/0x70
[  251.043545]  ? __switch_to_asm+0x40/0x70
[  251.047606]  ? __switch_to_asm+0x34/0x70
[  251.051688]  bpf_clone_redirect+0xb9/0x490
[  251.055930]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  251.060950]  ? __sched_text_start+0x8/0x8
[  251.065106]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  251.069689]  ? retint_kernel+0x2d/0x2d
[  251.073578]  ? trace_hardirqs_on_caller+0xc0/0x310
[  251.078512]  ? find_held_lock+0x36/0x1c0
[  251.082585]  ? lock_acquire+0x1ed/0x520
[  251.086560]  ? bpf_test_run+0x3cb/0x780
[  251.090538]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.096077]  ? check_preemption_disabled+0x48/0x280
[  251.101117]  ? kasan_check_read+0x11/0x20
[  251.105268]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  251.110546]  ? rcu_softirq_qs+0x20/0x20
[  251.114521]  ? preempt_schedule+0x4d/0x60
[  251.118697]  ? ___preempt_schedule+0x16/0x18
[  251.123114]  ? bpf_test_run+0x25d/0x780
[  251.127103]  ? netlink_diag_dump+0x2a0/0x2a0
[  251.131514]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  251.137086]  ? bpf_test_init.isra.10+0x70/0x100
[  251.141764]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  251.146532]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  251.151387]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  251.156924]  ? fput+0x130/0x1a0
[  251.160214]  ? __bpf_prog_get+0x9b/0x290
[  251.164277]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  251.169119]  ? bpf_prog_test_run+0x130/0x1a0
[  251.173528]  ? __x64_sys_bpf+0x3db/0x520
[  251.177600]  ? bpf_prog_get+0x20/0x20
[  251.181434]  ? do_syscall_64+0x1b9/0x820
[  251.185502]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  251.190869]  ? syscall_return_slowpath+0x5e0/0x5e0
[  251.195808]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  251.200663]  ? trace_hardirqs_on_caller+0x310/0x310
[  251.205686]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  251.210702]  ? prepare_exit_to_usermode+0x291/0x3b0
[  251.215722]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  251.220571]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  251.225948] warn_alloc_show_mem: 1 callbacks suppressed
[  251.225959] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  251.225961] Mem-Info:
[  251.225992] active_anon:57128 inactive_anon:971 isolated_anon:0
[  251.225992]  active_file:40 inactive_file:20 isolated_file:0
[  251.225992]  unevictable:0 dirty:11 writeback:0 unstable:0
[  251.225992]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  251.225992]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  251.225992]  free:13615 free_pcp:64 free_cma:0
[  251.231332] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  251.238378] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  251.240774] Call Trace:
[  251.273733] 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
[  251.283077]  <IRQ>
[  251.310991] lowmem_reserve[]: 0 2818 6321 6321
[  251.313586]  dump_stack+0x244/0x39d
[  251.339695] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  251.341864]  ? dump_stack_print_info.cold.1+0x20/0x20
[  251.346406] lowmem_reserve[]: 0 0 3503 3503
[  251.350042]  warn_alloc.cold.116+0xb7/0x1bd
[  251.377511] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  251.382698]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  251.386988] lowmem_reserve[]: 0 0 0 0
[  251.391309]  ? lock_downgrade+0x900/0x900
[  251.420433] 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
[  251.425276]  ? trace_hardirqs_off+0xb8/0x310
[  251.429047] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  251.433188]  ? trace_hardirqs_off+0xb8/0x310
[  251.446687] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  251.451100]  __alloc_pages_slowpath+0x2651/0x2de0
[  251.466170] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  251.470586]  ? warn_alloc+0x120/0x120
[  251.486062] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  251.490892]  ? print_usage_bug+0xc0/0xc0
[  251.499699] 5171 total pagecache pages
[  251.503495]  ? warn_alloc+0x120/0x120
[  251.512048] 0 pages in swap cache
[  251.516096]  ? warn_alloc+0x120/0x120
[  251.519957] Swap cache stats: add 0, delete 0, find 0/0
[  251.523748]  ? print_usage_bug+0xc0/0xc0
[  251.527188] Free swap  = 0kB
[  251.530982]  ? kvm_clock_read+0x18/0x30
[  251.536321] Total swap = 0kB
[  251.540382]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  251.543372] 1965979 pages RAM
[  251.547337]  ? print_usage_bug+0xc0/0xc0
[  251.550333] 0 pages HighMem/MovableOnly
[  251.555341]  ? __lock_acquire+0x62f/0x4c20
[  251.558421] 342854 pages reserved
[  251.562479]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  251.566422] 0 pages cma reserved
[  251.570654]  ? should_fail+0x22d/0xd01
[  251.574147] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  251.579607]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  251.579626]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  251.583062] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  251.586856]  ? __lock_acquire+0x62f/0x4c20
[  251.593325] syz-executor2 cpuset=syz2 mems_allowed=0
[  251.598596]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  251.628587]  ? __lock_acquire+0x62f/0x4c20
[  251.632833]  ? should_fail+0x22d/0xd01
[  251.636725]  ? rcu_irq_exit+0x1a2/0x390
[  251.640726]  ? mark_held_locks+0x130/0x130
[  251.644974]  ? mark_held_locks+0x130/0x130
[  251.649223]  ? mark_held_locks+0xc7/0x130
[  251.653377]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  251.658403]  ? zap_class+0x640/0x640
[  251.662126]  ? print_usage_bug+0xc0/0xc0
[  251.666200]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.671749]  ? check_preemption_disabled+0x48/0x280
[  251.676780]  ? __lock_is_held+0xb5/0x140
[  251.680845]  __alloc_pages_nodemask+0xad8/0xea0
[  251.685516]  ? zap_class+0x640/0x640
[  251.689232]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  251.694264]  ? find_held_lock+0x36/0x1c0
[  251.698335]  ? ____cache_alloc_node+0x1c7/0x1e0
[  251.703006]  ? lock_downgrade+0x900/0x900
[  251.707173]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.712725]  cache_grow_begin+0xa5/0x8c0
[  251.716790]  ? do_raw_spin_unlock+0xa7/0x330
[  251.721205]  fallback_alloc+0x204/0x2e0
[  251.725200]  ____cache_alloc_node+0x1c7/0x1e0
[  251.729701]  kmem_cache_alloc_node+0xe3/0x730
[  251.734201]  ? ipv6_get_ifaddr+0x42e/0x620
[  251.738447]  __alloc_skb+0x119/0x770
[  251.742166]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  251.747448]  ? netdev_alloc_frag+0x1f0/0x1f0
[  251.751858]  ? lock_downgrade+0x900/0x900
[  251.756038]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.761573]  ? refcount_sub_and_test_checked+0x203/0x310
[  251.767030]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  251.772504]  ? addrconf_rs_timer+0x690/0x690
[  251.776925]  ndisc_alloc_skb+0x144/0x340
[  251.780992]  ndisc_send_rs+0x331/0x6e0
[  251.784888]  addrconf_rs_timer+0x314/0x690
[  251.789128]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  251.793388]  call_timer_fn+0x272/0x920
[  251.797276]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  251.801511]  ? process_timeout+0x40/0x40
[  251.805580]  ? mark_held_locks+0xc7/0x130
[  251.809732]  ? _raw_spin_unlock_irq+0x27/0x80
[  251.814225]  ? _raw_spin_unlock_irq+0x27/0x80
[  251.818716]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  251.822950]  ? lockdep_hardirqs_on+0x296/0x5b0
[  251.827537]  ? trace_hardirqs_on+0xbd/0x310
[  251.831857]  ? kasan_check_read+0x11/0x20
[  251.836005]  ? __run_timers+0x7da/0xc70
[  251.839978]  ? trace_hardirqs_off_caller+0x310/0x310
[  251.845116]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  251.849353]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  251.853585]  __run_timers+0x7e5/0xc70
[  251.857395]  ? timer_fixup_init+0x70/0x70
[  251.861543]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  251.866563]  ? zap_class+0x640/0x640
[  251.870281]  ? print_usage_bug+0xc0/0xc0
[  251.874343]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  251.879555]  ? find_held_lock+0x36/0x1c0
[  251.883621]  ? zap_class+0x640/0x640
[  251.887372]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.892909]  ? check_preemption_disabled+0x48/0x280
[  251.897941]  ? __lock_is_held+0xb5/0x140
[  251.902005]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.907544]  ? check_preemption_disabled+0x48/0x280
[  251.912563]  run_timer_softirq+0x52/0xb0
[  251.916629]  ? rcu_read_lock_sched_held+0x14f/0x180
[  251.921661]  __do_softirq+0x308/0xb7e
[  251.925467]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  251.929960]  ? lock_downgrade+0x900/0x900
[  251.934111]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  251.939257]  ? pvclock_read_flags+0x160/0x160
[  251.943753]  ? lapic_next_event+0x5a/0x90
[  251.947908]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.953455]  ? kvm_clock_read+0x18/0x30
[  251.957429]  ? kvm_sched_clock_read+0x9/0x20
[  251.961842]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.967391]  ? check_preemption_disabled+0x48/0x280
[  251.972419]  irq_exit+0x17f/0x1c0
[  251.975875]  smp_apic_timer_interrupt+0x1cb/0x760
[  251.980717]  ? smp_reschedule_interrupt+0x109/0x650
[  251.985735]  ? smp_call_function_single_interrupt+0x650/0x650
[  251.991620]  ? interrupt_entry+0xb5/0xc0
[  251.995689]  ? trace_hardirqs_off_caller+0xbb/0x310
[  252.000705]  ? trace_hardirqs_off_caller+0xbb/0x310
[  252.005723]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  252.010565]  ? trace_hardirqs_on_caller+0x310/0x310
[  252.015583]  ? trace_hardirqs_on_caller+0x310/0x310
[  252.020597]  ? task_prio+0x50/0x50
[  252.024140]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.029685]  ? check_preemption_disabled+0x48/0x280
[  252.034713]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  252.039562]  apic_timer_interrupt+0xf/0x20
[  252.043791]  </IRQ>
[  252.046043] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  252.051236] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  252.070136] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  252.077844] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  252.085113] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  252.092378] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  252.099650] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  252.106916] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  252.114219]  retint_kernel+0x1b/0x2d
[  252.117939] RIP: 0010:dump_stack+0x358/0x39d
[  252.122359] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  252.141254] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  252.148959] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  252.156224] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  252.163488] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  252.170753] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  252.178017] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  252.185306]  ? dump_stack+0x34f/0x39d
[  252.189123]  ? dump_stack_print_info.cold.1+0x20/0x20
[  252.194318]  ? mark_held_locks+0x130/0x130
[  252.198552]  ? mark_held_locks+0x130/0x130
[  252.202789]  dump_header+0x27b/0xf72
[  252.206516]  ? pagefault_out_of_memory+0x197/0x197
[  252.211450]  ? __lock_acquire+0x62f/0x4c20
[  252.215695]  ? print_usage_bug+0xc0/0xc0
[  252.219761]  ? zap_class+0x640/0x640
[  252.223476]  ? print_usage_bug+0xc0/0xc0
[  252.227535]  ? print_usage_bug+0xc0/0xc0
[  252.231601]  ? print_usage_bug+0xc0/0xc0
[  252.235682]  ? find_held_lock+0x36/0x1c0
[  252.239755]  ? mark_held_locks+0xc7/0x130
[  252.243907]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  252.249009]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  252.254113]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  252.258698]  ? trace_hardirqs_on+0xbd/0x310
[  252.263028]  ? kasan_check_read+0x11/0x20
[  252.267185]  ? ___ratelimit+0x3b4/0x672
[  252.271167]  ? trace_hardirqs_off_caller+0x310/0x310
[  252.276277]  ? trace_hardirqs_on+0x310/0x310
[  252.280691]  ? lock_downgrade+0x900/0x900
[  252.284850]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  252.289960]  ? ___ratelimit+0x3b9/0x672
[  252.293941]  ? idr_get_free+0xf70/0xf70
[  252.297918]  ? kasan_check_read+0x11/0x20
[  252.302064]  ? do_raw_spin_unlock+0xa7/0x330
[  252.306483]  oom_kill_process.cold.27+0x10/0x903
[  252.311241]  ? zap_class+0x640/0x640
[  252.314954]  ? _raw_spin_unlock+0x2c/0x50
[  252.319101]  ? oom_badness+0xe6/0xaa0
[  252.322902]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  252.327834]  ? kasan_check_read+0x11/0x20
[  252.331980]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  252.337261]  ? oom_evaluate_task+0x540/0x540
[  252.341676]  ? find_held_lock+0x36/0x1c0
[  252.345743]  ? out_of_memory+0x974/0x1430
[  252.349896]  ? lock_downgrade+0x900/0x900
[  252.354046]  ? check_preemption_disabled+0x48/0x280
[  252.359064]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  252.363992]  ? kasan_check_read+0x11/0x20
[  252.368140]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  252.373418]  ? rcu_softirq_qs+0x20/0x20
[  252.377394]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  252.382958]  ? oom_evaluate_task+0x302/0x540
[  252.387370]  out_of_memory+0xa84/0x1430
[  252.391357]  ? oom_killer_disable+0x3a0/0x3a0
[  252.395854]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  252.400793]  ? __ww_mutex_check_waiters+0x160/0x160
[  252.405823]  __alloc_pages_slowpath+0x232c/0x2de0
[  252.410695]  ? warn_alloc+0x120/0x120
[  252.414496]  ? mark_held_locks+0x130/0x130
[  252.418736]  ? find_get_entry+0xaae/0x1120
[  252.422978]  ? filemap_map_pages+0x1a20/0x1a20
[  252.427563]  ? zap_class+0x640/0x640
[  252.431298]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.436838]  ? check_preemption_disabled+0x48/0x280
[  252.441856]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  252.447391]  ? should_fail+0x22d/0xd01
[  252.451310]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  252.456414]  ? zap_class+0x640/0x640
[  252.460165]  ? __lock_is_held+0xb5/0x140
[  252.464236]  ? mark_held_locks+0x130/0x130
[  252.468477]  ? lock_release+0xa00/0xa00
[  252.472453]  ? perf_trace_sched_process_exec+0x860/0x860
[  252.477904]  ? xa_load+0x2ba/0x460
[  252.481445]  ? lock_downgrade+0x900/0x900
[  252.485597]  ? __might_sleep+0x95/0x190
[  252.489577]  __alloc_pages_nodemask+0xad8/0xea0
[  252.494254]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  252.499272]  ? __page_cache_alloc+0x191/0x5c0
[  252.503767]  ? xa_load+0x2e1/0x460
[  252.507306]  ? xa_clear_mark+0x40/0x40
[  252.511198]  ? zap_class+0x640/0x640
[  252.514921]  ? zap_class+0x640/0x640
[  252.518642]  ? zap_class+0x640/0x640
[  252.522358]  ? __do_page_cache_readahead+0x663/0x810
[  252.527466]  ? find_held_lock+0x36/0x1c0
[  252.531530]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  252.537075]  alloc_pages_current+0x173/0x350
[  252.541534]  __page_cache_alloc+0x38c/0x5c0
[  252.545858]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  252.550788]  ? kasan_check_read+0x11/0x20
[  252.554938]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  252.560219]  ? generic_perform_write+0x6a0/0x6a0
[  252.564978]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  252.570515]  ? check_preemption_disabled+0x48/0x280
[  252.575537]  filemap_fault+0x1595/0x25f0
[  252.579618]  ? __lock_page_or_retry+0xa00/0xa00
[  252.584311]  ? mark_held_locks+0x130/0x130
[  252.588552]  ? filemap_map_pages+0xd6b/0x1a20
[  252.593048]  ? lock_downgrade+0x900/0x900
[  252.597198]  ? check_preemption_disabled+0x48/0x280
[  252.602215]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  252.607142]  ? kasan_check_read+0x11/0x20
[  252.611294]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  252.616567]  ? rcu_softirq_qs+0x20/0x20
[  252.620705]  ? filemap_map_pages+0xd92/0x1a20
[  252.625216]  ? find_get_entries_tag+0x1400/0x1400
[  252.630064]  ? debug_object_destroy+0x2b0/0x2b0
[  252.634734]  ? lock_pi_update_atomic+0x150/0x150
[  252.639492]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.645041]  ? lock_acquire+0x1ed/0x520
[  252.649015]  ? ext4_filemap_fault+0x7a/0xad
[  252.653341]  ? lock_release+0xa00/0xa00
[  252.657315]  ? perf_trace_sched_process_exec+0x860/0x860
[  252.662771]  ? print_usage_bug+0xc0/0xc0
[  252.666831]  ? print_usage_bug+0xc0/0xc0
[  252.670903]  ? down_read+0x8d/0x120
[  252.674526]  ? ext4_filemap_fault+0x7a/0xad
[  252.678847]  ? __down_interruptible+0x700/0x700
[  252.683531]  ext4_filemap_fault+0x82/0xad
[  252.687682]  __do_fault+0x100/0x6b0
[  252.691315]  ? pmd_devmap_trans_unstable+0x220/0x220
[  252.696426]  ? mark_held_locks+0x130/0x130
[  252.700671]  ? mark_held_locks+0x130/0x130
[  252.704908]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  252.709720]  ? retint_kernel+0x2d/0x2d
[  252.713606]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  252.719158]  __handle_mm_fault+0x3ea0/0x5be0
[  252.723564]  ? perf_trace_lock+0x7a0/0x7a0
[  252.727804]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  252.732690]  ? __switch_to_asm+0x34/0x70
[  252.736755]  ? __switch_to_asm+0x34/0x70
[  252.740833]  ? zap_class+0x640/0x640
[  252.744549]  ? zap_class+0x640/0x640
[  252.748259]  ? __x64_sys_futex+0x53e/0x6a0
[  252.753013]  ? find_held_lock+0x36/0x1c0
[  252.757101]  ? handle_mm_fault+0x42a/0xc70
[  252.761382]  ? lock_downgrade+0x900/0x900
[  252.765544]  ? check_preemption_disabled+0x48/0x280
[  252.770571]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  252.775498]  ? kasan_check_read+0x11/0x20
[  252.779652]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  252.784932]  ? rcu_softirq_qs+0x20/0x20
[  252.788906]  ? trace_hardirqs_off_caller+0x310/0x310
[  252.794009]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  252.799551]  ? check_preemption_disabled+0x48/0x280
[  252.804575]  handle_mm_fault+0x54f/0xc70
[  252.808665]  ? __handle_mm_fault+0x5be0/0x5be0
[  252.813255]  ? find_vma+0x34/0x190
[  252.816801]  __do_page_fault+0x5e8/0xe60
[  252.820861]  ? trace_hardirqs_off+0xb8/0x310
[  252.825283]  do_page_fault+0xf2/0x7e0
[  252.829088]  ? vmalloc_sync_all+0x30/0x30
[  252.833254]  ? error_entry+0x70/0xd0
[  252.836967]  ? trace_hardirqs_off_caller+0xbb/0x310
[  252.841981]  ? trace_hardirqs_on_caller+0xc0/0x310
[  252.846923]  ? syscall_return_slowpath+0x5e0/0x5e0
[  252.851849]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  252.856693]  ? trace_hardirqs_on_caller+0x310/0x310
[  252.861709]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  252.867165]  ? prepare_exit_to_usermode+0x291/0x3b0
[  252.872185]  ? page_fault+0x8/0x30
[  252.875731]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  252.880577]  ? page_fault+0x8/0x30
[  252.884120]  page_fault+0x1e/0x30
[  252.887576] RIP: 0033:0x4290d7
[  252.890794] Code: Bad RIP value.
[  252.894178] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  252.899534] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  252.906802] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  252.914086] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  252.921349] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  252.928609] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  252.935909] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  252.935973] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  252.943180] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  252.943186] Call Trace:
[  252.943192]  <IRQ>
[  252.943211]  dump_stack+0x244/0x39d
[  252.943229]  ? dump_stack_print_info.cold.1+0x20/0x20
[  252.949748] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  252.959048]  warn_alloc.cold.116+0xb7/0x1bd
[  252.961604] syz-fuzzer cpuset=/ mems_allowed=0
[  252.963759]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  252.996475]  ? lock_downgrade+0x900/0x900
[  253.000629]  ? trace_hardirqs_off+0xb8/0x310
[  253.005103]  ? trace_hardirqs_off+0xb8/0x310
[  253.009523]  __alloc_pages_slowpath+0x2651/0x2de0
[  253.014393]  ? warn_alloc+0x120/0x120
[  253.018196]  ? print_usage_bug+0xc0/0xc0
[  253.022257]  ? warn_alloc+0x120/0x120
[  253.026060]  ? warn_alloc+0x120/0x120
[  253.029858]  ? print_usage_bug+0xc0/0xc0
[  253.033922]  ? kvm_clock_read+0x18/0x30
[  253.037925]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  253.042940]  ? print_usage_bug+0xc0/0xc0
[  253.047000]  ? __lock_acquire+0x62f/0x4c20
[  253.051240]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  253.056780]  ? should_fail+0x22d/0xd01
[  253.060688]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.065966]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  253.071074]  ? __lock_acquire+0x62f/0x4c20
[  253.075310]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  253.080413]  ? __lock_acquire+0x62f/0x4c20
[  253.084650]  ? should_fail+0x22d/0xd01
[  253.088543]  ? rcu_irq_exit+0x1a2/0x390
[  253.092523]  ? mark_held_locks+0x130/0x130
[  253.096765]  ? mark_held_locks+0x130/0x130
[  253.101018]  ? mark_held_locks+0xc7/0x130
[  253.105167]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  253.110183]  ? zap_class+0x640/0x640
[  253.113896]  ? print_usage_bug+0xc0/0xc0
[  253.117959]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.123500]  ? check_preemption_disabled+0x48/0x280
[  253.128536]  ? __lock_is_held+0xb5/0x140
[  253.132619]  __alloc_pages_nodemask+0xad8/0xea0
[  253.137297]  ? zap_class+0x640/0x640
[  253.141016]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  253.146042]  ? find_held_lock+0x36/0x1c0
[  253.150112]  ? ____cache_alloc_node+0x1c7/0x1e0
[  253.154794]  ? lock_downgrade+0x900/0x900
[  253.158948]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.164488]  cache_grow_begin+0xa5/0x8c0
[  253.168574]  ? do_raw_spin_unlock+0xa7/0x330
[  253.173032]  fallback_alloc+0x204/0x2e0
[  253.177011]  ____cache_alloc_node+0x1c7/0x1e0
[  253.181514]  kmem_cache_alloc_node+0xe3/0x730
[  253.186009]  ? ipv6_get_ifaddr+0x42e/0x620
[  253.190252]  __alloc_skb+0x119/0x770
[  253.193961]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.199238]  ? netdev_alloc_frag+0x1f0/0x1f0
[  253.203658]  ? lock_downgrade+0x900/0x900
[  253.207846]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.213384]  ? refcount_sub_and_test_checked+0x203/0x310
[  253.218837]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  253.224288]  ? addrconf_rs_timer+0x690/0x690
[  253.228711]  ndisc_alloc_skb+0x144/0x340
[  253.232776]  ndisc_send_rs+0x331/0x6e0
[  253.236675]  addrconf_rs_timer+0x314/0x690
[  253.240917]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  253.245157]  call_timer_fn+0x272/0x920
[  253.249056]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  253.253290]  ? process_timeout+0x40/0x40
[  253.257354]  ? __run_timers+0x7da/0xc70
[  253.261344]  ? _raw_spin_unlock_irq+0x27/0x80
[  253.265835]  ? _raw_spin_unlock_irq+0x27/0x80
[  253.270324]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  253.274558]  ? lockdep_hardirqs_on+0x296/0x5b0
[  253.279142]  ? trace_hardirqs_on+0xbd/0x310
[  253.283468]  ? kasan_check_read+0x11/0x20
[  253.287616]  ? __run_timers+0x7da/0xc70
[  253.291610]  ? trace_hardirqs_off_caller+0x310/0x310
[  253.296751]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  253.300993]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  253.305227]  __run_timers+0x7e5/0xc70
[  253.309034]  ? timer_fixup_init+0x70/0x70
[  253.313185]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  253.318201]  ? zap_class+0x640/0x640
[  253.321922]  ? enqueue_hrtimer+0x1a5/0x560
[  253.326157]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  253.331351]  ? find_held_lock+0x36/0x1c0
[  253.335412]  ? zap_class+0x640/0x640
[  253.339125]  ? pvclock_read_flags+0x160/0x160
[  253.343620]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.349169]  ? check_preemption_disabled+0x48/0x280
[  253.354194]  ? __lock_is_held+0xb5/0x140
[  253.358286]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.363823]  ? check_preemption_disabled+0x48/0x280
[  253.368858]  run_timer_softirq+0x52/0xb0
[  253.372916]  ? rcu_read_lock_sched_held+0x14f/0x180
[  253.377932]  __do_softirq+0x308/0xb7e
[  253.381749]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  253.386241]  ? lock_downgrade+0x900/0x900
[  253.390395]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  253.395519]  ? pvclock_read_flags+0x160/0x160
[  253.400015]  ? lapic_next_event+0x5a/0x90
[  253.404177]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.409754]  ? kvm_clock_read+0x18/0x30
[  253.413726]  ? kvm_sched_clock_read+0x9/0x20
[  253.418134]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.423700]  ? check_preemption_disabled+0x48/0x280
[  253.428726]  irq_exit+0x17f/0x1c0
[  253.432191]  smp_apic_timer_interrupt+0x1cb/0x760
[  253.437043]  ? smp_reschedule_interrupt+0x109/0x650
[  253.442065]  ? smp_call_function_single_interrupt+0x650/0x650
[  253.447947]  ? interrupt_entry+0xb5/0xc0
[  253.452007]  ? trace_hardirqs_off_caller+0xbb/0x310
[  253.457019]  ? trace_hardirqs_off_caller+0xbb/0x310
[  253.462038]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  253.466880]  ? trace_hardirqs_on_caller+0x310/0x310
[  253.471895]  ? trace_hardirqs_on_caller+0x310/0x310
[  253.476912]  ? task_prio+0x50/0x50
[  253.480454]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.485991]  ? check_preemption_disabled+0x48/0x280
[  253.491015]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  253.495878]  apic_timer_interrupt+0xf/0x20
[  253.500109]  </IRQ>
[  253.502361] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  253.507313] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  253.526212] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  253.533917] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  253.541184] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  253.548451] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  253.555717] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  253.562981] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  253.570290]  skb_clone+0x1bb/0x500
[  253.573832]  ? skb_split+0x11e0/0x11e0
[  253.577726]  ? preempt_notifier_register+0x200/0x200
[  253.582825]  ? __switch_to_asm+0x34/0x70
[  253.586882]  ? __switch_to_asm+0x34/0x70
[  253.590944]  ? __switch_to_asm+0x40/0x70
[  253.594999]  ? __switch_to_asm+0x34/0x70
[  253.599057]  ? __switch_to_asm+0x40/0x70
[  253.603114]  ? __switch_to_asm+0x40/0x70
[  253.607173]  ? __switch_to_asm+0x34/0x70
[  253.611231]  ? __switch_to_asm+0x34/0x70
[  253.615287]  ? __switch_to_asm+0x40/0x70
[  253.619375]  ? __switch_to_asm+0x34/0x70
[  253.623473]  bpf_clone_redirect+0xb9/0x490
[  253.627717]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  253.632740]  ? __sched_text_start+0x8/0x8
[  253.636890]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  253.641473]  ? retint_kernel+0x2d/0x2d
[  253.645364]  ? trace_hardirqs_on_caller+0xc0/0x310
[  253.650301]  ? find_held_lock+0x36/0x1c0
[  253.654369]  ? lock_acquire+0x1ed/0x520
[  253.658341]  ? bpf_test_run+0x3cb/0x780
[  253.662321]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.667863]  ? check_preemption_disabled+0x48/0x280
[  253.672888]  ? kasan_check_read+0x11/0x20
[  253.677036]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.682330]  ? rcu_softirq_qs+0x20/0x20
[  253.686304]  ? preempt_schedule+0x4d/0x60
[  253.690451]  ? ___preempt_schedule+0x16/0x18
[  253.694872]  ? bpf_test_run+0x25d/0x780
[  253.698857]  ? netlink_diag_dump+0x2a0/0x2a0
[  253.703281]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  253.708819]  ? bpf_test_init.isra.10+0x70/0x100
[  253.713494]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  253.718255]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  253.723126]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  253.728725]  ? fput+0x130/0x1a0
[  253.732011]  ? __bpf_prog_get+0x9b/0x290
[  253.736118]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  253.740957]  ? bpf_prog_test_run+0x130/0x1a0
[  253.745369]  ? __x64_sys_bpf+0x3db/0x520
[  253.749432]  ? bpf_prog_get+0x20/0x20
[  253.753254]  ? do_syscall_64+0x1b9/0x820
[  253.757311]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  253.762693]  ? syscall_return_slowpath+0x5e0/0x5e0
[  253.767622]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  253.772487]  ? trace_hardirqs_on_caller+0x310/0x310
[  253.777531]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  253.782550]  ? prepare_exit_to_usermode+0x291/0x3b0
[  253.787571]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  253.792424]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  253.797829] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  253.797834] warn_alloc_show_mem: 1 callbacks suppressed
[  253.797840] Mem-Info:
[  253.804850] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  253.810222] active_anon:57128 inactive_anon:971 isolated_anon:0
[  253.810222]  active_file:40 inactive_file:20 isolated_file:0
[  253.810222]  unevictable:0 dirty:11 writeback:0 unstable:0
[  253.810222]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  253.810222]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  253.810222]  free:13615 free_pcp:64 free_cma:0
[  253.812582] Call Trace:
[  253.821967] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  253.854911]  <IRQ>
[  253.857480] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  253.885409]  dump_stack+0x244/0x39d
[  253.887574] lowmem_reserve[]: 0 2818 6321 6321
[  253.913711]  ? dump_stack_print_info.cold.1+0x20/0x20
[  253.917307] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  253.921889]  warn_alloc.cold.116+0xb7/0x1bd
[  253.927044] lowmem_reserve[]: 0 0 3503 3503
[  253.954538]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  253.958830] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  253.963167]  ? lock_downgrade+0x900/0x900
[  253.967979] lowmem_reserve[]: 0 0 0 0
[  253.997127]  ? trace_hardirqs_off+0xb8/0x310
[  254.001247] 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
[  254.005041]  ? trace_hardirqs_off+0xb8/0x310
[  254.009422] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  254.022949]  __alloc_pages_slowpath+0x2651/0x2de0
[  254.027327] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  254.042461]  ? warn_alloc+0x120/0x120
[  254.047262] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  254.062769]  ? print_usage_bug+0xc0/0xc0
[  254.066549] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  254.075366]  ? warn_alloc+0x120/0x120
[  254.079406] 5171 total pagecache pages
[  254.087970]  ? warn_alloc+0x120/0x120
[  254.091754] 0 pages in swap cache
[  254.095626]  ? print_usage_bug+0xc0/0xc0
[  254.099424] Swap cache stats: add 0, delete 0, find 0/0
[  254.102863]  ? print_usage_bug+0xc0/0xc0
[  254.106901] Free swap  = 0kB
[  254.112262]  ? __lock_acquire+0x62f/0x4c20
[  254.116298] Total swap = 0kB
[  254.119309]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  254.123518] 1965979 pages RAM
[  254.126527]  ? should_fail+0x22d/0xd01
[  254.132039] 0 pages HighMem/MovableOnly
[  254.135135]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  254.138999] 342854 pages reserved
[  254.142962]  ? __lock_acquire+0x62f/0x4c20
[  254.148041] 0 pages cma reserved
[  254.151514]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  254.155783] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  254.159072]  ? __lock_acquire+0x62f/0x4c20
[  254.159088]  ? should_fail+0x22d/0xd01
[  254.164283] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  254.170671]  ? find_held_lock+0x36/0x1c0
[  254.170706]  ? mark_held_locks+0x130/0x130
[  254.174928] syz-executor2 cpuset=syz2 mems_allowed=0
[  254.178833]  ? mark_held_locks+0x130/0x130
[  254.206860]  ? zap_class+0x640/0x640
[  254.210570]  ? zap_class+0x640/0x640
[  254.214281]  ? print_usage_bug+0xc0/0xc0
[  254.218337]  ? do_raw_spin_unlock+0xa7/0x330
[  254.222743]  ? zap_class+0x640/0x640
[  254.226453]  ? print_usage_bug+0xc0/0xc0
[  254.230522]  ? wq_watchdog_touch+0x9c/0xfe
[  254.234762]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.240300]  ? check_preemption_disabled+0x48/0x280
[  254.245325]  ? __lock_is_held+0xb5/0x140
[  254.249389]  __alloc_pages_nodemask+0xad8/0xea0
[  254.254057]  ? zap_class+0x640/0x640
[  254.257776]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  254.262801]  ? find_held_lock+0x36/0x1c0
[  254.266871]  ? ____cache_alloc_node+0x1c7/0x1e0
[  254.271541]  ? lock_downgrade+0x900/0x900
[  254.275695]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.281242]  cache_grow_begin+0xa5/0x8c0
[  254.285304]  ? do_raw_spin_unlock+0xa7/0x330
[  254.289741]  fallback_alloc+0x204/0x2e0
[  254.293738]  ____cache_alloc_node+0x1c7/0x1e0
[  254.298236]  kmem_cache_alloc_node+0xe3/0x730
[  254.302748]  ? ipv6_get_ifaddr+0x42e/0x620
[  254.306995]  __alloc_skb+0x119/0x770
[  254.310708]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  254.315987]  ? netdev_alloc_frag+0x1f0/0x1f0
[  254.320397]  ? lock_downgrade+0x900/0x900
[  254.324551]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.330102]  ? refcount_sub_and_test_checked+0x203/0x310
[  254.335572]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  254.341025]  ? addrconf_rs_timer+0x690/0x690
[  254.345442]  ndisc_alloc_skb+0x144/0x340
[  254.349510]  ndisc_send_rs+0x331/0x6e0
[  254.353403]  addrconf_rs_timer+0x314/0x690
[  254.357651]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  254.361896]  call_timer_fn+0x272/0x920
[  254.365784]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  254.370019]  ? process_timeout+0x40/0x40
[  254.374087]  ? mark_held_locks+0xc7/0x130
[  254.378241]  ? _raw_spin_unlock_irq+0x27/0x80
[  254.382740]  ? _raw_spin_unlock_irq+0x27/0x80
[  254.387236]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  254.391472]  ? lockdep_hardirqs_on+0x296/0x5b0
[  254.396053]  ? trace_hardirqs_on+0xbd/0x310
[  254.400376]  ? kasan_check_read+0x11/0x20
[  254.404521]  ? __run_timers+0x7da/0xc70
[  254.408497]  ? trace_hardirqs_off_caller+0x310/0x310
[  254.413606]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  254.417855]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  254.422090]  __run_timers+0x7e5/0xc70
[  254.425902]  ? timer_fixup_init+0x70/0x70
[  254.430051]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  254.435071]  ? zap_class+0x640/0x640
[  254.438791]  ? print_usage_bug+0xc0/0xc0
[  254.442856]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  254.448052]  ? find_held_lock+0x36/0x1c0
[  254.452116]  ? zap_class+0x640/0x640
[  254.455839]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.461379]  ? check_preemption_disabled+0x48/0x280
[  254.466403]  ? __lock_is_held+0xb5/0x140
[  254.470464]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.476002]  ? check_preemption_disabled+0x48/0x280
[  254.481026]  run_timer_softirq+0x52/0xb0
[  254.485086]  ? rcu_read_lock_sched_held+0x14f/0x180
[  254.490104]  __do_softirq+0x308/0xb7e
[  254.493910]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  254.498406]  ? lock_downgrade+0x900/0x900
[  254.502557]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  254.507679]  ? pvclock_read_flags+0x160/0x160
[  254.512182]  ? lapic_next_event+0x5a/0x90
[  254.516333]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.521877]  ? kvm_clock_read+0x18/0x30
[  254.525849]  ? kvm_sched_clock_read+0x9/0x20
[  254.530262]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.535799]  ? check_preemption_disabled+0x48/0x280
[  254.540828]  irq_exit+0x17f/0x1c0
[  254.544285]  smp_apic_timer_interrupt+0x1cb/0x760
[  254.549128]  ? smp_reschedule_interrupt+0x109/0x650
[  254.554152]  ? smp_call_function_single_interrupt+0x650/0x650
[  254.560043]  ? interrupt_entry+0xb5/0xc0
[  254.564104]  ? trace_hardirqs_off_caller+0xbb/0x310
[  254.569118]  ? trace_hardirqs_off_caller+0xbb/0x310
[  254.574133]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  254.578982]  ? trace_hardirqs_on_caller+0x310/0x310
[  254.583997]  ? trace_hardirqs_on_caller+0x310/0x310
[  254.589014]  ? task_prio+0x50/0x50
[  254.592556]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.598100]  ? check_preemption_disabled+0x48/0x280
[  254.603122]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  254.607976]  apic_timer_interrupt+0xf/0x20
[  254.612202]  </IRQ>
[  254.614440] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  254.619639] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  254.638541] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  254.646247] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  254.653513] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  254.660780] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  254.668044] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  254.675314] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  254.682616]  retint_kernel+0x1b/0x2d
[  254.686339] RIP: 0010:dump_stack+0x358/0x39d
[  254.690752] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  254.709658] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  254.717363] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  254.724627] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  254.731932] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  254.739196] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  254.746460] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  254.754242]  ? dump_stack+0x34f/0x39d
[  254.758055]  ? dump_stack_print_info.cold.1+0x20/0x20
[  254.763270]  ? mark_held_locks+0x130/0x130
[  254.767503]  ? mark_held_locks+0x130/0x130
[  254.771741]  dump_header+0x27b/0xf72
[  254.775465]  ? pagefault_out_of_memory+0x197/0x197
[  254.780405]  ? __lock_acquire+0x62f/0x4c20
[  254.784653]  ? print_usage_bug+0xc0/0xc0
[  254.788726]  ? zap_class+0x640/0x640
[  254.792444]  ? print_usage_bug+0xc0/0xc0
[  254.796501]  ? print_usage_bug+0xc0/0xc0
[  254.800561]  ? print_usage_bug+0xc0/0xc0
[  254.804627]  ? find_held_lock+0x36/0x1c0
[  254.808722]  ? mark_held_locks+0xc7/0x130
[  254.812872]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  254.817978]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  254.823080]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  254.827674]  ? trace_hardirqs_on+0xbd/0x310
[  254.831994]  ? kasan_check_read+0x11/0x20
[  254.836142]  ? ___ratelimit+0x3b4/0x672
[  254.840124]  ? trace_hardirqs_off_caller+0x310/0x310
[  254.845231]  ? trace_hardirqs_on+0x310/0x310
[  254.849647]  ? lock_downgrade+0x900/0x900
[  254.853800]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  254.858905]  ? ___ratelimit+0x3b9/0x672
[  254.862881]  ? idr_get_free+0xf70/0xf70
[  254.866853]  ? kasan_check_read+0x11/0x20
[  254.871002]  ? do_raw_spin_unlock+0xa7/0x330
[  254.875418]  oom_kill_process.cold.27+0x10/0x903
[  254.880181]  ? zap_class+0x640/0x640
[  254.883893]  ? _raw_spin_unlock+0x2c/0x50
[  254.888040]  ? oom_badness+0xe6/0xaa0
[  254.891848]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  254.896774]  ? kasan_check_read+0x11/0x20
[  254.900919]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  254.906199]  ? oom_evaluate_task+0x540/0x540
[  254.910610]  ? find_held_lock+0x36/0x1c0
[  254.914687]  ? out_of_memory+0x974/0x1430
[  254.918836]  ? lock_downgrade+0x900/0x900
[  254.922985]  ? check_preemption_disabled+0x48/0x280
[  254.928007]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  254.932938]  ? kasan_check_read+0x11/0x20
[  254.937083]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  254.942383]  ? rcu_softirq_qs+0x20/0x20
[  254.946361]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  254.951895]  ? oom_evaluate_task+0x302/0x540
[  254.956305]  out_of_memory+0xa84/0x1430
[  254.960287]  ? oom_killer_disable+0x3a0/0x3a0
[  254.964781]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  254.969719]  ? __ww_mutex_check_waiters+0x160/0x160
[  254.974747]  __alloc_pages_slowpath+0x232c/0x2de0
[  254.979616]  ? warn_alloc+0x120/0x120
[  254.983421]  ? mark_held_locks+0x130/0x130
[  254.987666]  ? find_get_entry+0xaae/0x1120
[  254.991910]  ? filemap_map_pages+0x1a20/0x1a20
[  254.996505]  ? zap_class+0x640/0x640
[  255.000225]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.005767]  ? check_preemption_disabled+0x48/0x280
[  255.010785]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  255.016319]  ? should_fail+0x22d/0xd01
[  255.020214]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  255.025319]  ? zap_class+0x640/0x640
[  255.029059]  ? __lock_is_held+0xb5/0x140
[  255.033132]  ? mark_held_locks+0x130/0x130
[  255.037372]  ? lock_release+0xa00/0xa00
[  255.041351]  ? perf_trace_sched_process_exec+0x860/0x860
[  255.046798]  ? xa_load+0x2ba/0x460
[  255.050342]  ? lock_downgrade+0x900/0x900
[  255.054496]  ? __might_sleep+0x95/0x190
[  255.058477]  __alloc_pages_nodemask+0xad8/0xea0
[  255.063168]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  255.068187]  ? __page_cache_alloc+0x191/0x5c0
[  255.072678]  ? xa_load+0x2e1/0x460
[  255.076224]  ? xa_clear_mark+0x40/0x40
[  255.080111]  ? zap_class+0x640/0x640
[  255.083832]  ? zap_class+0x640/0x640
[  255.087544]  ? zap_class+0x640/0x640
[  255.091260]  ? __do_page_cache_readahead+0x663/0x810
[  255.096371]  ? find_held_lock+0x36/0x1c0
[  255.100452]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  255.106012]  alloc_pages_current+0x173/0x350
[  255.110428]  __page_cache_alloc+0x38c/0x5c0
[  255.114751]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  255.119681]  ? kasan_check_read+0x11/0x20
[  255.123827]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.129105]  ? generic_perform_write+0x6a0/0x6a0
[  255.133861]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  255.139403]  ? check_preemption_disabled+0x48/0x280
[  255.144436]  filemap_fault+0x1595/0x25f0
[  255.148510]  ? __lock_page_or_retry+0xa00/0xa00
[  255.153185]  ? mark_held_locks+0x130/0x130
[  255.157607]  ? filemap_map_pages+0xd6b/0x1a20
[  255.162112]  ? lock_downgrade+0x900/0x900
[  255.166258]  ? check_preemption_disabled+0x48/0x280
[  255.171276]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  255.176207]  ? kasan_check_read+0x11/0x20
[  255.180353]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.185629]  ? rcu_softirq_qs+0x20/0x20
[  255.189626]  ? filemap_map_pages+0xd92/0x1a20
[  255.194144]  ? find_get_entries_tag+0x1400/0x1400
[  255.198998]  ? debug_object_destroy+0x2b0/0x2b0
[  255.203675]  ? lock_pi_update_atomic+0x150/0x150
[  255.208435]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.213986]  ? lock_acquire+0x1ed/0x520
[  255.217958]  ? ext4_filemap_fault+0x7a/0xad
[  255.222285]  ? lock_release+0xa00/0xa00
[  255.226262]  ? perf_trace_sched_process_exec+0x860/0x860
[  255.231711]  ? print_usage_bug+0xc0/0xc0
[  255.235821]  ? print_usage_bug+0xc0/0xc0
[  255.239892]  ? down_read+0x8d/0x120
[  255.243516]  ? ext4_filemap_fault+0x7a/0xad
[  255.247839]  ? __down_interruptible+0x700/0x700
[  255.252515]  ext4_filemap_fault+0x82/0xad
[  255.256668]  __do_fault+0x100/0x6b0
[  255.260298]  ? pmd_devmap_trans_unstable+0x220/0x220
[  255.265403]  ? mark_held_locks+0x130/0x130
[  255.269646]  ? mark_held_locks+0x130/0x130
[  255.273879]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  255.278650]  ? retint_kernel+0x2d/0x2d
[  255.282537]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  255.288077]  __handle_mm_fault+0x3ea0/0x5be0
[  255.292482]  ? perf_trace_lock+0x7a0/0x7a0
[  255.296728]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  255.301575]  ? __switch_to_asm+0x34/0x70
[  255.305642]  ? __switch_to_asm+0x34/0x70
[  255.309717]  ? zap_class+0x640/0x640
[  255.313441]  ? zap_class+0x640/0x640
[  255.317168]  ? __x64_sys_futex+0x53e/0x6a0
[  255.321405]  ? find_held_lock+0x36/0x1c0
[  255.325473]  ? handle_mm_fault+0x42a/0xc70
[  255.329711]  ? lock_downgrade+0x900/0x900
[  255.333858]  ? check_preemption_disabled+0x48/0x280
[  255.338881]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  255.343809]  ? kasan_check_read+0x11/0x20
[  255.347954]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.353241]  ? rcu_softirq_qs+0x20/0x20
[  255.357218]  ? trace_hardirqs_off_caller+0x310/0x310
[  255.362321]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  255.367862]  ? check_preemption_disabled+0x48/0x280
[  255.372889]  handle_mm_fault+0x54f/0xc70
[  255.376955]  ? __handle_mm_fault+0x5be0/0x5be0
[  255.381545]  ? find_vma+0x34/0x190
[  255.385091]  __do_page_fault+0x5e8/0xe60
[  255.389169]  ? trace_hardirqs_off+0xb8/0x310
[  255.393587]  do_page_fault+0xf2/0x7e0
[  255.397387]  ? vmalloc_sync_all+0x30/0x30
[  255.401538]  ? error_entry+0x70/0xd0
[  255.405267]  ? trace_hardirqs_off_caller+0xbb/0x310
[  255.410287]  ? trace_hardirqs_on_caller+0xc0/0x310
[  255.415216]  ? syscall_return_slowpath+0x5e0/0x5e0
[  255.420145]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  255.424993]  ? trace_hardirqs_on_caller+0x310/0x310
[  255.430008]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  255.435470]  ? prepare_exit_to_usermode+0x291/0x3b0
[  255.440485]  ? page_fault+0x8/0x30
[  255.444030]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  255.448877]  ? page_fault+0x8/0x30
[  255.452423]  page_fault+0x1e/0x30
[  255.455872] RIP: 0033:0x4290d7
[  255.459077] Code: Bad RIP value.
[  255.462437] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  255.467797] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  255.475066] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  255.482332] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  255.489597] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  255.496864] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  255.504161] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  255.504236] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  255.511438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  255.511443] Call Trace:
[  255.511449]  <IRQ>
[  255.511471]  dump_stack+0x244/0x39d
[  255.511494]  ? dump_stack_print_info.cold.1+0x20/0x20
[  255.518061] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  255.527332]  warn_alloc.cold.116+0xb7/0x1bd
[  255.529886] syz-fuzzer cpuset=/ mems_allowed=0
[  255.532036]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  255.564754]  ? lock_downgrade+0x900/0x900
[  255.568911]  ? trace_hardirqs_off+0xb8/0x310
[  255.573326]  ? trace_hardirqs_off+0xb8/0x310
[  255.577747]  __alloc_pages_slowpath+0x2651/0x2de0
[  255.582618]  ? warn_alloc+0x120/0x120
[  255.586437]  ? print_usage_bug+0xc0/0xc0
[  255.590502]  ? warn_alloc+0x120/0x120
[  255.594307]  ? warn_alloc+0x120/0x120
[  255.598106]  ? print_usage_bug+0xc0/0xc0
[  255.602165]  ? kvm_clock_read+0x18/0x30
[  255.606141]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  255.611164]  ? print_usage_bug+0xc0/0xc0
[  255.615227]  ? __lock_acquire+0x62f/0x4c20
[  255.619465]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  255.625018]  ? should_fail+0x22d/0xd01
[  255.628906]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.634183]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  255.639287]  ? __lock_acquire+0x62f/0x4c20
[  255.643528]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  255.648643]  ? __lock_acquire+0x62f/0x4c20
[  255.652882]  ? should_fail+0x22d/0xd01
[  255.656776]  ? rcu_irq_exit+0x1a2/0x390
[  255.660776]  ? mark_held_locks+0x130/0x130
[  255.665023]  ? mark_held_locks+0x130/0x130
[  255.669264]  ? mark_held_locks+0xc7/0x130
[  255.673411]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  255.678428]  ? zap_class+0x640/0x640
[  255.682144]  ? print_usage_bug+0xc0/0xc0
[  255.686215]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.691767]  ? check_preemption_disabled+0x48/0x280
[  255.696798]  ? __lock_is_held+0xb5/0x140
[  255.700871]  __alloc_pages_nodemask+0xad8/0xea0
[  255.705547]  ? zap_class+0x640/0x640
[  255.709269]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  255.714303]  ? find_held_lock+0x36/0x1c0
[  255.718380]  ? ____cache_alloc_node+0x1c7/0x1e0
[  255.723053]  ? lock_downgrade+0x900/0x900
[  255.727222]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.732779]  cache_grow_begin+0xa5/0x8c0
[  255.736849]  ? do_raw_spin_unlock+0xa7/0x330
[  255.741288]  fallback_alloc+0x204/0x2e0
[  255.745273]  ____cache_alloc_node+0x1c7/0x1e0
[  255.749780]  kmem_cache_alloc_node+0xe3/0x730
[  255.754280]  ? ipv6_get_ifaddr+0x42e/0x620
[  255.758531]  __alloc_skb+0x119/0x770
[  255.762246]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.767531]  ? netdev_alloc_frag+0x1f0/0x1f0
[  255.771944]  ? lock_downgrade+0x900/0x900
[  255.776101]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.781644]  ? refcount_sub_and_test_checked+0x203/0x310
[  255.787104]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  255.792560]  ? addrconf_rs_timer+0x690/0x690
[  255.796991]  ndisc_alloc_skb+0x144/0x340
[  255.801061]  ndisc_send_rs+0x331/0x6e0
[  255.804955]  addrconf_rs_timer+0x314/0x690
[  255.809193]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.813442]  call_timer_fn+0x272/0x920
[  255.817327]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.821561]  ? process_timeout+0x40/0x40
[  255.825630]  ? __run_timers+0x7da/0xc70
[  255.829622]  ? _raw_spin_unlock_irq+0x27/0x80
[  255.834128]  ? _raw_spin_unlock_irq+0x27/0x80
[  255.838624]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.842873]  ? lockdep_hardirqs_on+0x296/0x5b0
[  255.847455]  ? trace_hardirqs_on+0xbd/0x310
[  255.851778]  ? kasan_check_read+0x11/0x20
[  255.855926]  ? __run_timers+0x7da/0xc70
[  255.859899]  ? trace_hardirqs_off_caller+0x310/0x310
[  255.865006]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.869246]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.873478]  __run_timers+0x7e5/0xc70
[  255.877287]  ? timer_fixup_init+0x70/0x70
[  255.881436]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  255.886451]  ? zap_class+0x640/0x640
[  255.890170]  ? enqueue_hrtimer+0x1a5/0x560
[  255.894406]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  255.899607]  ? find_held_lock+0x36/0x1c0
[  255.903686]  ? zap_class+0x640/0x640
[  255.907403]  ? pvclock_read_flags+0x160/0x160
[  255.911901]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.917445]  ? check_preemption_disabled+0x48/0x280
[  255.922471]  ? __lock_is_held+0xb5/0x140
[  255.926545]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.932084]  ? check_preemption_disabled+0x48/0x280
[  255.937104]  run_timer_softirq+0x52/0xb0
[  255.941168]  ? rcu_read_lock_sched_held+0x14f/0x180
[  255.946191]  __do_softirq+0x308/0xb7e
[  255.950002]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  255.954497]  ? lock_downgrade+0x900/0x900
[  255.958664]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  255.963776]  ? pvclock_read_flags+0x160/0x160
[  255.968277]  ? lapic_next_event+0x5a/0x90
[  255.972430]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.977974]  ? kvm_clock_read+0x18/0x30
[  255.981952]  ? kvm_sched_clock_read+0x9/0x20
[  255.986362]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.991902]  ? check_preemption_disabled+0x48/0x280
[  255.996932]  irq_exit+0x17f/0x1c0
[  256.000389]  smp_apic_timer_interrupt+0x1cb/0x760
[  256.005234]  ? smp_reschedule_interrupt+0x109/0x650
[  256.010252]  ? smp_call_function_single_interrupt+0x650/0x650
[  256.016135]  ? interrupt_entry+0xb5/0xc0
[  256.020196]  ? trace_hardirqs_off_caller+0xbb/0x310
[  256.025210]  ? trace_hardirqs_off_caller+0xbb/0x310
[  256.030230]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  256.035073]  ? trace_hardirqs_on_caller+0x310/0x310
[  256.040090]  ? trace_hardirqs_on_caller+0x310/0x310
[  256.045113]  ? task_prio+0x50/0x50
[  256.048668]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.054213]  ? check_preemption_disabled+0x48/0x280
[  256.059240]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  256.064095]  apic_timer_interrupt+0xf/0x20
[  256.068325]  </IRQ>
[  256.070566] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  256.075495] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  256.094392] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  256.102098] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  256.109367] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  256.116643] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  256.123914] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  256.131182] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  256.138498]  skb_clone+0x1bb/0x500
[  256.142042]  ? skb_split+0x11e0/0x11e0
[  256.145938]  ? preempt_notifier_register+0x200/0x200
[  256.151039]  ? __switch_to_asm+0x34/0x70
[  256.155099]  ? __switch_to_asm+0x34/0x70
[  256.159155]  ? __switch_to_asm+0x40/0x70
[  256.163215]  ? __switch_to_asm+0x34/0x70
[  256.167273]  ? __switch_to_asm+0x40/0x70
[  256.171331]  ? __switch_to_asm+0x40/0x70
[  256.175391]  ? __switch_to_asm+0x34/0x70
[  256.179455]  ? __switch_to_asm+0x34/0x70
[  256.183512]  ? __switch_to_asm+0x40/0x70
[  256.187576]  ? __switch_to_asm+0x34/0x70
[  256.191682]  bpf_clone_redirect+0xb9/0x490
[  256.195945]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  256.200973]  ? __sched_text_start+0x8/0x8
[  256.205128]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  256.209713]  ? retint_kernel+0x2d/0x2d
[  256.213604]  ? trace_hardirqs_on_caller+0xc0/0x310
[  256.218552]  ? find_held_lock+0x36/0x1c0
[  256.222619]  ? lock_acquire+0x1ed/0x520
[  256.226611]  ? bpf_test_run+0x3cb/0x780
[  256.230598]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.236175]  ? check_preemption_disabled+0x48/0x280
[  256.241208]  ? kasan_check_read+0x11/0x20
[  256.245378]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  256.250682]  ? rcu_softirq_qs+0x20/0x20
[  256.254712]  ? preempt_schedule+0x4d/0x60
[  256.258873]  ? ___preempt_schedule+0x16/0x18
[  256.263303]  ? bpf_test_run+0x25d/0x780
[  256.267322]  ? netlink_diag_dump+0x2a0/0x2a0
[  256.271738]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  256.277290]  ? bpf_test_init.isra.10+0x70/0x100
[  256.281972]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  256.286755]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  256.291608]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  256.297158]  ? fput+0x130/0x1a0
[  256.300476]  ? __bpf_prog_get+0x9b/0x290
[  256.304561]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  256.309417]  ? bpf_prog_test_run+0x130/0x1a0
[  256.313841]  ? __x64_sys_bpf+0x3db/0x520
[  256.317905]  ? bpf_prog_get+0x20/0x20
[  256.321746]  ? do_syscall_64+0x1b9/0x820
[  256.325812]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  256.331196]  ? syscall_return_slowpath+0x5e0/0x5e0
[  256.336122]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  256.340965]  ? trace_hardirqs_on_caller+0x310/0x310
[  256.345981]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  256.351011]  ? prepare_exit_to_usermode+0x291/0x3b0
[  256.356047]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  256.360906]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  256.366340] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  256.366345] warn_alloc_show_mem: 1 callbacks suppressed
[  256.366351] Mem-Info:
[  256.373371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  256.378736] active_anon:57128 inactive_anon:971 isolated_anon:0
[  256.378736]  active_file:40 inactive_file:20 isolated_file:0
[  256.378736]  unevictable:0 dirty:11 writeback:0 unstable:0
[  256.378736]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  256.378736]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  256.378736]  free:13615 free_pcp:64 free_cma:0
[  256.381110] Call Trace:
[  256.390507] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  256.423723]  <IRQ>
[  256.426301] 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
[  256.454249]  dump_stack+0x244/0x39d
[  256.456373] lowmem_reserve[]: 0 2818 6321 6321
[  256.482492]  ? dump_stack_print_info.cold.1+0x20/0x20
[  256.486090] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  256.490676]  warn_alloc.cold.116+0xb7/0x1bd
[  256.495832] lowmem_reserve[]: 0 0 3503 3503
[  256.523344]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  256.527650] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  256.531970]  ? lock_downgrade+0x900/0x900
[  256.536793] lowmem_reserve[]: 0 0 0 0
[  256.565946]  ? trace_hardirqs_off+0xb8/0x310
[  256.570109] 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
[  256.573904]  ? trace_hardirqs_off+0xb8/0x310
[  256.578306] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  256.591826]  __alloc_pages_slowpath+0x2651/0x2de0
[  256.596209] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  256.611315]  ? warn_alloc+0x120/0x120
[  256.616112] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  256.631771]  ? print_usage_bug+0xc0/0xc0
[  256.635556] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  256.644378]  ? warn_alloc+0x120/0x120
[  256.648416] 5171 total pagecache pages
[  256.656981]  ? warn_alloc+0x120/0x120
[  256.660762] 0 pages in swap cache
[  256.664645]  ? print_usage_bug+0xc0/0xc0
[  256.668430] Swap cache stats: add 0, delete 0, find 0/0
[  256.671875]  ? print_usage_bug+0xc0/0xc0
[  256.675910] Free swap  = 0kB
[  256.681270]  ? __lock_acquire+0x62f/0x4c20
[  256.685321] Total swap = 0kB
[  256.688339]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  256.692549] 1965979 pages RAM
[  256.695580]  ? should_fail+0x22d/0xd01
[  256.701091] 0 pages HighMem/MovableOnly
[  256.704208]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  256.708069] 342854 pages reserved
[  256.712033]  ? __lock_acquire+0x62f/0x4c20
[  256.717108] 0 pages cma reserved
[  256.720566]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  256.724838] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  256.728130]  ? __lock_acquire+0x62f/0x4c20
[  256.728146]  ? should_fail+0x22d/0xd01
[  256.733309] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  256.739726]  ? mark_held_locks+0x130/0x130
[  256.743935] syz-executor2 cpuset=syz2 mems_allowed=0
[  256.747819]  ? mark_held_locks+0x130/0x130
[  256.772000]  ? zap_class+0x640/0x640
[  256.775729]  ? zap_class+0x640/0x640
[  256.779442]  ? print_usage_bug+0xc0/0xc0
[  256.783500]  ? wq_watchdog_touch+0x9c/0xfe
[  256.787742]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.793283]  ? check_preemption_disabled+0x48/0x280
[  256.798312]  ? __lock_is_held+0xb5/0x140
[  256.802378]  __alloc_pages_nodemask+0xad8/0xea0
[  256.807046]  ? zap_class+0x640/0x640
[  256.810769]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  256.815801]  ? find_held_lock+0x36/0x1c0
[  256.819870]  ? ____cache_alloc_node+0x1c7/0x1e0
[  256.824541]  ? lock_downgrade+0x900/0x900
[  256.828697]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.834237]  cache_grow_begin+0xa5/0x8c0
[  256.838304]  ? do_raw_spin_unlock+0xa7/0x330
[  256.842736]  fallback_alloc+0x204/0x2e0
[  256.846721]  ____cache_alloc_node+0x1c7/0x1e0
[  256.851227]  kmem_cache_alloc_node+0xe3/0x730
[  256.855725]  ? ipv6_get_ifaddr+0x42e/0x620
[  256.859968]  __alloc_skb+0x119/0x770
[  256.863683]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  256.868964]  ? netdev_alloc_frag+0x1f0/0x1f0
[  256.873372]  ? lock_downgrade+0x900/0x900
[  256.877532]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.883073]  ? refcount_sub_and_test_checked+0x203/0x310
[  256.888531]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  256.893983]  ? addrconf_rs_timer+0x690/0x690
[  256.898406]  ndisc_alloc_skb+0x144/0x340
[  256.902474]  ndisc_send_rs+0x331/0x6e0
[  256.906370]  addrconf_rs_timer+0x314/0x690
[  256.910610]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  256.914869]  call_timer_fn+0x272/0x920
[  256.918762]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  256.922998]  ? process_timeout+0x40/0x40
[  256.927069]  ? mark_held_locks+0xc7/0x130
[  256.931244]  ? _raw_spin_unlock_irq+0x27/0x80
[  256.935740]  ? _raw_spin_unlock_irq+0x27/0x80
[  256.940239]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  256.944474]  ? lockdep_hardirqs_on+0x296/0x5b0
[  256.949059]  ? trace_hardirqs_on+0xbd/0x310
[  256.953380]  ? kasan_check_read+0x11/0x20
[  256.957530]  ? __run_timers+0x7da/0xc70
[  256.961505]  ? trace_hardirqs_off_caller+0x310/0x310
[  256.966615]  ? can_init_stats.isra.0+0x100/0x100
[  256.971381]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  256.975619]  __run_timers+0x7e5/0xc70
[  256.979447]  ? timer_fixup_init+0x70/0x70
[  256.983599]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  256.988626]  ? zap_class+0x640/0x640
[  256.992353]  ? print_usage_bug+0xc0/0xc0
[  256.996417]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  257.001614]  ? find_held_lock+0x36/0x1c0
[  257.005689]  ? zap_class+0x640/0x640
[  257.009407]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.014950]  ? check_preemption_disabled+0x48/0x280
[  257.019978]  ? __lock_is_held+0xb5/0x140
[  257.024047]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.029590]  ? check_preemption_disabled+0x48/0x280
[  257.034616]  run_timer_softirq+0x52/0xb0
[  257.038687]  ? rcu_read_lock_sched_held+0x14f/0x180
[  257.043706]  __do_softirq+0x308/0xb7e
[  257.047514]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  257.052008]  ? lock_downgrade+0x900/0x900
[  257.056169]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  257.061279]  ? pvclock_read_flags+0x160/0x160
[  257.065778]  ? lapic_next_event+0x5a/0x90
[  257.069934]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.075477]  ? kvm_clock_read+0x18/0x30
[  257.079453]  ? kvm_sched_clock_read+0x9/0x20
[  257.083865]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.089405]  ? check_preemption_disabled+0x48/0x280
[  257.094431]  irq_exit+0x17f/0x1c0
[  257.097886]  smp_apic_timer_interrupt+0x1cb/0x760
[  257.102729]  ? smp_reschedule_interrupt+0x109/0x650
[  257.107746]  ? smp_call_function_single_interrupt+0x650/0x650
[  257.113628]  ? interrupt_entry+0xb5/0xc0
[  257.117704]  ? trace_hardirqs_off_caller+0xbb/0x310
[  257.122719]  ? trace_hardirqs_off_caller+0xbb/0x310
[  257.127741]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  257.132584]  ? trace_hardirqs_on_caller+0x310/0x310
[  257.137602]  ? trace_hardirqs_on_caller+0x310/0x310
[  257.142621]  ? task_prio+0x50/0x50
[  257.146207]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.151749]  ? check_preemption_disabled+0x48/0x280
[  257.156772]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  257.161626]  apic_timer_interrupt+0xf/0x20
[  257.165866]  </IRQ>
[  257.168106] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  257.173311] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  257.192229] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  257.199935] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  257.207204] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  257.214494] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  257.221775] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  257.229070] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  257.236396]  retint_kernel+0x1b/0x2d
[  257.240144] RIP: 0010:dump_stack+0x358/0x39d
[  257.244584] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  257.263495] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  257.271227] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  257.278513] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  257.285799] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  257.293084] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  257.300369] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  257.307718]  ? dump_stack+0x34f/0x39d
[  257.311553]  ? dump_stack_print_info.cold.1+0x20/0x20
[  257.316770]  ? mark_held_locks+0x130/0x130
[  257.321024]  ? mark_held_locks+0x130/0x130
[  257.325291]  dump_header+0x27b/0xf72
[  257.329066]  ? pagefault_out_of_memory+0x197/0x197
[  257.334049]  ? __lock_acquire+0x62f/0x4c20
[  257.338304]  ? print_usage_bug+0xc0/0xc0
[  257.342390]  ? zap_class+0x640/0x640
[  257.346119]  ? print_usage_bug+0xc0/0xc0
[  257.350196]  ? print_usage_bug+0xc0/0xc0
[  257.354272]  ? print_usage_bug+0xc0/0xc0
[  257.358358]  ? find_held_lock+0x36/0x1c0
[  257.362447]  ? mark_held_locks+0xc7/0x130
[  257.366622]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  257.371754]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  257.376876]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  257.381483]  ? trace_hardirqs_on+0xbd/0x310
[  257.385821]  ? kasan_check_read+0x11/0x20
[  257.389992]  ? ___ratelimit+0x3b4/0x672
[  257.393992]  ? trace_hardirqs_off_caller+0x310/0x310
[  257.399159]  ? trace_hardirqs_on+0x310/0x310
[  257.403590]  ? lock_downgrade+0x900/0x900
[  257.407764]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  257.412890]  ? ___ratelimit+0x3b9/0x672
[  257.416888]  ? idr_get_free+0xf70/0xf70
[  257.420878]  ? kasan_check_read+0x11/0x20
[  257.425046]  ? do_raw_spin_unlock+0xa7/0x330
[  257.429487]  oom_kill_process.cold.27+0x10/0x903
[  257.434270]  ? zap_class+0x640/0x640
[  257.438002]  ? _raw_spin_unlock+0x2c/0x50
[  257.442164]  ? oom_badness+0xe6/0xaa0
[  257.445983]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  257.450919]  ? kasan_check_read+0x11/0x20
[  257.455077]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  257.460364]  ? oom_evaluate_task+0x540/0x540
[  257.464797]  ? find_held_lock+0x36/0x1c0
[  257.468875]  ? out_of_memory+0x974/0x1430
[  257.473032]  ? lock_downgrade+0x900/0x900
[  257.477198]  ? check_preemption_disabled+0x48/0x280
[  257.482226]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  257.487168]  ? kasan_check_read+0x11/0x20
[  257.491325]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  257.496609]  ? rcu_softirq_qs+0x20/0x20
[  257.500598]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  257.506140]  ? oom_evaluate_task+0x302/0x540
[  257.510559]  out_of_memory+0xa84/0x1430
[  257.514545]  ? oom_killer_disable+0x3a0/0x3a0
[  257.519047]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  257.523997]  ? __ww_mutex_check_waiters+0x160/0x160
[  257.529038]  __alloc_pages_slowpath+0x232c/0x2de0
[  257.533910]  ? warn_alloc+0x120/0x120
[  257.537744]  ? mark_held_locks+0x130/0x130
[  257.541983]  ? find_get_entry+0xaae/0x1120
[  257.546230]  ? filemap_map_pages+0x1a20/0x1a20
[  257.550819]  ? zap_class+0x640/0x640
[  257.554538]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.560077]  ? check_preemption_disabled+0x48/0x280
[  257.565095]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  257.570645]  ? should_fail+0x22d/0xd01
[  257.574542]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  257.579658]  ? zap_class+0x640/0x640
[  257.583404]  ? __lock_is_held+0xb5/0x140
[  257.587477]  ? mark_held_locks+0x130/0x130
[  257.591714]  ? lock_release+0xa00/0xa00
[  257.595695]  ? perf_trace_sched_process_exec+0x860/0x860
[  257.601173]  ? xa_load+0x2ba/0x460
[  257.604714]  ? lock_downgrade+0x900/0x900
[  257.608868]  ? __might_sleep+0x95/0x190
[  257.612849]  __alloc_pages_nodemask+0xad8/0xea0
[  257.617551]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  257.622569]  ? __page_cache_alloc+0x191/0x5c0
[  257.627061]  ? xa_load+0x2e1/0x460
[  257.630601]  ? xa_clear_mark+0x40/0x40
[  257.634510]  ? zap_class+0x640/0x640
[  257.638238]  ? zap_class+0x640/0x640
[  257.641954]  ? zap_class+0x640/0x640
[  257.645671]  ? __do_page_cache_readahead+0x663/0x810
[  257.650779]  ? find_held_lock+0x36/0x1c0
[  257.654850]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  257.660391]  alloc_pages_current+0x173/0x350
[  257.664812]  __page_cache_alloc+0x38c/0x5c0
[  257.669128]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  257.674057]  ? kasan_check_read+0x11/0x20
[  257.678207]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  257.683486]  ? generic_perform_write+0x6a0/0x6a0
[  257.688247]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  257.693797]  ? check_preemption_disabled+0x48/0x280
[  257.698849]  filemap_fault+0x1595/0x25f0
[  257.702926]  ? __lock_page_or_retry+0xa00/0xa00
[  257.707741]  ? mark_held_locks+0x130/0x130
[  257.711983]  ? filemap_map_pages+0xd6b/0x1a20
[  257.716475]  ? lock_downgrade+0x900/0x900
[  257.720658]  ? check_preemption_disabled+0x48/0x280
[  257.725710]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  257.730645]  ? kasan_check_read+0x11/0x20
[  257.734793]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  257.740076]  ? rcu_softirq_qs+0x20/0x20
[  257.744074]  ? filemap_map_pages+0xd92/0x1a20
[  257.748639]  ? find_get_entries_tag+0x1400/0x1400
[  257.753486]  ? debug_object_destroy+0x2b0/0x2b0
[  257.758158]  ? lock_pi_update_atomic+0x150/0x150
[  257.762913]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.768472]  ? lock_acquire+0x1ed/0x520
[  257.772451]  ? ext4_filemap_fault+0x7a/0xad
[  257.776806]  ? lock_release+0xa00/0xa00
[  257.780786]  ? perf_trace_sched_process_exec+0x860/0x860
[  257.786253]  ? print_usage_bug+0xc0/0xc0
[  257.790323]  ? print_usage_bug+0xc0/0xc0
[  257.794395]  ? down_read+0x8d/0x120
[  257.798022]  ? ext4_filemap_fault+0x7a/0xad
[  257.802351]  ? __down_interruptible+0x700/0x700
[  257.807051]  ext4_filemap_fault+0x82/0xad
[  257.811211]  __do_fault+0x100/0x6b0
[  257.814852]  ? pmd_devmap_trans_unstable+0x220/0x220
[  257.819969]  ? mark_held_locks+0x130/0x130
[  257.824222]  ? mark_held_locks+0x130/0x130
[  257.828463]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  257.833250]  ? retint_kernel+0x2d/0x2d
[  257.837165]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  257.842714]  __handle_mm_fault+0x3ea0/0x5be0
[  257.847136]  ? perf_trace_lock+0x7a0/0x7a0
[  257.851395]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  257.856257]  ? __switch_to_asm+0x34/0x70
[  257.860321]  ? __switch_to_asm+0x34/0x70
[  257.864416]  ? zap_class+0x640/0x640
[  257.868134]  ? zap_class+0x640/0x640
[  257.871850]  ? __x64_sys_futex+0x53e/0x6a0
[  257.876092]  ? find_held_lock+0x36/0x1c0
[  257.880177]  ? handle_mm_fault+0x42a/0xc70
[  257.884417]  ? lock_downgrade+0x900/0x900
[  257.888572]  ? check_preemption_disabled+0x48/0x280
[  257.893594]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  257.898524]  ? kasan_check_read+0x11/0x20
[  257.902672]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  257.907947]  ? rcu_softirq_qs+0x20/0x20
[  257.911921]  ? trace_hardirqs_off_caller+0x310/0x310
[  257.917026]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  257.922569]  ? check_preemption_disabled+0x48/0x280
[  257.927593]  handle_mm_fault+0x54f/0xc70
[  257.931664]  ? __handle_mm_fault+0x5be0/0x5be0
[  257.936251]  ? find_vma+0x34/0x190
[  257.939801]  __do_page_fault+0x5e8/0xe60
[  257.943864]  ? trace_hardirqs_off+0xb8/0x310
[  257.948282]  do_page_fault+0xf2/0x7e0
[  257.952087]  ? vmalloc_sync_all+0x30/0x30
[  257.956238]  ? error_entry+0x70/0xd0
[  257.959971]  ? trace_hardirqs_off_caller+0xbb/0x310
[  257.964986]  ? trace_hardirqs_on_caller+0xc0/0x310
[  257.969913]  ? syscall_return_slowpath+0x5e0/0x5e0
[  257.974841]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  257.979685]  ? trace_hardirqs_on_caller+0x310/0x310
[  257.984702]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  257.990161]  ? prepare_exit_to_usermode+0x291/0x3b0
[  257.995195]  ? page_fault+0x8/0x30
[  257.998741]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  258.003586]  ? page_fault+0x8/0x30
[  258.007161]  page_fault+0x1e/0x30
[  258.010625] RIP: 0033:0x4290d7
[  258.013842] Code: Bad RIP value.
[  258.017199] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  258.022563] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  258.029828] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  258.037094] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  258.044362] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  258.051638] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  258.058939] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  258.059010] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  258.066217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  258.066223] Call Trace:
[  258.066229]  <IRQ>
[  258.066252]  dump_stack+0x244/0x39d
[  258.066273]  ? dump_stack_print_info.cold.1+0x20/0x20
[  258.072841] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  258.082110]  warn_alloc.cold.116+0xb7/0x1bd
[  258.084665] syz-fuzzer cpuset=/ mems_allowed=0
[  258.086811]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  258.119516]  ? lock_downgrade+0x900/0x900
[  258.123684]  ? trace_hardirqs_off+0xb8/0x310
[  258.128103]  ? trace_hardirqs_off+0xb8/0x310
[  258.132525]  __alloc_pages_slowpath+0x2651/0x2de0
[  258.137405]  ? warn_alloc+0x120/0x120
[  258.141213]  ? print_usage_bug+0xc0/0xc0
[  258.145280]  ? warn_alloc+0x120/0x120
[  258.149088]  ? warn_alloc+0x120/0x120
[  258.152892]  ? print_usage_bug+0xc0/0xc0
[  258.157304]  ? kvm_clock_read+0x18/0x30
[  258.161287]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  258.166318]  ? print_usage_bug+0xc0/0xc0
[  258.170386]  ? __lock_acquire+0x62f/0x4c20
[  258.174630]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.180191]  ? should_fail+0x22d/0xd01
[  258.184080]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.189358]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  258.194461]  ? __lock_acquire+0x62f/0x4c20
[  258.198721]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  258.203827]  ? __lock_acquire+0x62f/0x4c20
[  258.208059]  ? should_fail+0x22d/0xd01
[  258.211947]  ? rcu_irq_exit+0x1a2/0x390
[  258.215933]  ? mark_held_locks+0x130/0x130
[  258.220171]  ? mark_held_locks+0x130/0x130
[  258.224411]  ? mark_held_locks+0xc7/0x130
[  258.228559]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  258.233573]  ? zap_class+0x640/0x640
[  258.237284]  ? print_usage_bug+0xc0/0xc0
[  258.241353]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.246889]  ? check_preemption_disabled+0x48/0x280
[  258.251915]  ? __lock_is_held+0xb5/0x140
[  258.255987]  __alloc_pages_nodemask+0xad8/0xea0
[  258.260668]  ? zap_class+0x640/0x640
[  258.264386]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  258.269414]  ? find_held_lock+0x36/0x1c0
[  258.273484]  ? ____cache_alloc_node+0x1c7/0x1e0
[  258.278152]  ? lock_downgrade+0x900/0x900
[  258.282307]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.287848]  cache_grow_begin+0xa5/0x8c0
[  258.291908]  ? do_raw_spin_unlock+0xa7/0x330
[  258.296321]  fallback_alloc+0x204/0x2e0
[  258.300306]  ____cache_alloc_node+0x1c7/0x1e0
[  258.304810]  kmem_cache_alloc_node+0xe3/0x730
[  258.309306]  ? ipv6_get_ifaddr+0x42e/0x620
[  258.313554]  __alloc_skb+0x119/0x770
[  258.317269]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.322547]  ? netdev_alloc_frag+0x1f0/0x1f0
[  258.326953]  ? lock_downgrade+0x900/0x900
[  258.331112]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.336660]  ? refcount_sub_and_test_checked+0x203/0x310
[  258.342125]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  258.347578]  ? addrconf_rs_timer+0x690/0x690
[  258.352007]  ndisc_alloc_skb+0x144/0x340
[  258.356078]  ndisc_send_rs+0x331/0x6e0
[  258.359981]  addrconf_rs_timer+0x314/0x690
[  258.364226]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  258.368477]  call_timer_fn+0x272/0x920
[  258.372372]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  258.376615]  ? process_timeout+0x40/0x40
[  258.380700]  ? __run_timers+0x7da/0xc70
[  258.384685]  ? _raw_spin_unlock_irq+0x27/0x80
[  258.389186]  ? _raw_spin_unlock_irq+0x27/0x80
[  258.393696]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  258.397952]  ? lockdep_hardirqs_on+0x296/0x5b0
[  258.402535]  ? trace_hardirqs_on+0xbd/0x310
[  258.406860]  ? kasan_check_read+0x11/0x20
[  258.411009]  ? __run_timers+0x7da/0xc70
[  258.414983]  ? trace_hardirqs_off_caller+0x310/0x310
[  258.420094]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  258.424353]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  258.428586]  __run_timers+0x7e5/0xc70
[  258.432395]  ? timer_fixup_init+0x70/0x70
[  258.436546]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  258.441564]  ? zap_class+0x640/0x640
[  258.445289]  ? enqueue_hrtimer+0x1a5/0x560
[  258.449529]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  258.454728]  ? find_held_lock+0x36/0x1c0
[  258.458793]  ? zap_class+0x640/0x640
[  258.462512]  ? pvclock_read_flags+0x160/0x160
[  258.467012]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.472556]  ? check_preemption_disabled+0x48/0x280
[  258.477581]  ? __lock_is_held+0xb5/0x140
[  258.481650]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.487194]  ? check_preemption_disabled+0x48/0x280
[  258.492223]  run_timer_softirq+0x52/0xb0
[  258.496286]  ? rcu_read_lock_sched_held+0x14f/0x180
[  258.501307]  __do_softirq+0x308/0xb7e
[  258.505124]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  258.509619]  ? lock_downgrade+0x900/0x900
[  258.513781]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  258.518895]  ? pvclock_read_flags+0x160/0x160
[  258.523392]  ? lapic_next_event+0x5a/0x90
[  258.527541]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.533081]  ? kvm_clock_read+0x18/0x30
[  258.537053]  ? kvm_sched_clock_read+0x9/0x20
[  258.541474]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.547012]  ? check_preemption_disabled+0x48/0x280
[  258.552038]  irq_exit+0x17f/0x1c0
[  258.555498]  smp_apic_timer_interrupt+0x1cb/0x760
[  258.560359]  ? smp_reschedule_interrupt+0x109/0x650
[  258.565377]  ? smp_call_function_single_interrupt+0x650/0x650
[  258.571263]  ? interrupt_entry+0xb5/0xc0
[  258.575324]  ? trace_hardirqs_off_caller+0xbb/0x310
[  258.580357]  ? trace_hardirqs_off_caller+0xbb/0x310
[  258.585372]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  258.590213]  ? trace_hardirqs_on_caller+0x310/0x310
[  258.595229]  ? trace_hardirqs_on_caller+0x310/0x310
[  258.600246]  ? task_prio+0x50/0x50
[  258.603792]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.609330]  ? check_preemption_disabled+0x48/0x280
[  258.614351]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  258.619201]  apic_timer_interrupt+0xf/0x20
[  258.623921]  </IRQ>
[  258.626174] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  258.631102] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  258.650011] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  258.657718] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  258.664983] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  258.672249] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  258.679519] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  258.686788] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  258.694100]  skb_clone+0x1bb/0x500
[  258.697694]  ? skb_split+0x11e0/0x11e0
[  258.701600]  ? preempt_notifier_register+0x200/0x200
[  258.706714]  ? __switch_to_asm+0x34/0x70
[  258.710777]  ? __switch_to_asm+0x34/0x70
[  258.714835]  ? __switch_to_asm+0x40/0x70
[  258.718895]  ? __switch_to_asm+0x34/0x70
[  258.722959]  ? __switch_to_asm+0x40/0x70
[  258.727036]  ? __switch_to_asm+0x40/0x70
[  258.731091]  ? __switch_to_asm+0x34/0x70
[  258.735183]  ? __switch_to_asm+0x34/0x70
[  258.739243]  ? __switch_to_asm+0x40/0x70
[  258.743315]  ? __switch_to_asm+0x34/0x70
[  258.747384]  bpf_clone_redirect+0xb9/0x490
[  258.751629]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  258.756676]  ? __sched_text_start+0x8/0x8
[  258.760830]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  258.765409]  ? retint_kernel+0x2d/0x2d
[  258.769293]  ? trace_hardirqs_on_caller+0xc0/0x310
[  258.774224]  ? find_held_lock+0x36/0x1c0
[  258.778295]  ? lock_acquire+0x1ed/0x520
[  258.782271]  ? bpf_test_run+0x3cb/0x780
[  258.786250]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.791785]  ? check_preemption_disabled+0x48/0x280
[  258.796825]  ? kasan_check_read+0x11/0x20
[  258.800972]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.806247]  ? rcu_softirq_qs+0x20/0x20
[  258.810222]  ? preempt_schedule+0x4d/0x60
[  258.814373]  ? ___preempt_schedule+0x16/0x18
[  258.818791]  ? bpf_test_run+0x25d/0x780
[  258.822783]  ? netlink_diag_dump+0x2a0/0x2a0
[  258.827199]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.832780]  ? bpf_test_init.isra.10+0x70/0x100
[  258.837449]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  258.842244]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  258.847101]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  258.852663]  ? fput+0x130/0x1a0
[  258.855945]  ? __bpf_prog_get+0x9b/0x290
[  258.860007]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  258.864853]  ? bpf_prog_test_run+0x130/0x1a0
[  258.869265]  ? __x64_sys_bpf+0x3db/0x520
[  258.873327]  ? bpf_prog_get+0x20/0x20
[  258.877163]  ? do_syscall_64+0x1b9/0x820
[  258.881242]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  258.886618]  ? syscall_return_slowpath+0x5e0/0x5e0
[  258.891559]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  258.896401]  ? trace_hardirqs_on_caller+0x310/0x310
[  258.901415]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  258.906429]  ? prepare_exit_to_usermode+0x291/0x3b0
[  258.911452]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  258.916301]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  258.921695] warn_alloc_show_mem: 1 callbacks suppressed
[  258.921707] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  258.921709] Mem-Info:
[  258.921750] active_anon:57128 inactive_anon:971 isolated_anon:0
[  258.921750]  active_file:40 inactive_file:20 isolated_file:0
[  258.921750]  unevictable:0 dirty:11 writeback:0 unstable:0
[  258.921750]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  258.921750]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  258.921750]  free:13615 free_pcp:64 free_cma:0
[  258.927084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  258.934101] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  258.936495] Call Trace:
[  258.969446] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  258.978803]  <IRQ>
[  259.006718] lowmem_reserve[]: 0 2818 6321 6321
[  259.009308]  dump_stack+0x244/0x39d
[  259.035386] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  259.037558]  ? dump_stack_print_info.cold.1+0x20/0x20
[  259.042099] lowmem_reserve[]: 0 0 3503 3503
[  259.045729]  warn_alloc.cold.116+0xb7/0x1bd
[  259.073198] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  259.078381]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  259.082705] lowmem_reserve[]: 0 0 0 0
[  259.087021]  ? lock_downgrade+0x900/0x900
[  259.116143] 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
[  259.120987]  ? trace_hardirqs_off+0xb8/0x310
[  259.124755] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  259.128897]  ? trace_hardirqs_off+0xb8/0x310
[  259.142389] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  259.146793]  __alloc_pages_slowpath+0x2651/0x2de0
[  259.161853] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  259.166283]  ? warn_alloc+0x120/0x120
[  259.181757] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  259.186588]  ? print_usage_bug+0xc0/0xc0
[  259.195398] 5171 total pagecache pages
[  259.199191]  ? warn_alloc+0x120/0x120
[  259.207762] 0 pages in swap cache
[  259.211811]  ? warn_alloc+0x120/0x120
[  259.215681] Swap cache stats: add 0, delete 0, find 0/0
[  259.219470]  ? print_usage_bug+0xc0/0xc0
[  259.222899] Free swap  = 0kB
[  259.226696]  ? kvm_clock_read+0x18/0x30
[  259.232034] Total swap = 0kB
[  259.236104]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  259.239108] 1965979 pages RAM
[  259.243090]  ? print_usage_bug+0xc0/0xc0
[  259.246098] 0 pages HighMem/MovableOnly
[  259.251105]  ? __lock_acquire+0x62f/0x4c20
[  259.254218] 342854 pages reserved
[  259.258273]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  259.262219] 0 pages cma reserved
[  259.266458]  ? should_fail+0x22d/0xd01
[  259.269951] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  259.275405]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  259.275424]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  259.275443]  ? __lock_acquire+0x62f/0x4c20
[  259.278911] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  259.282675]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  259.289154] syz-executor2 cpuset=syz2 mems_allowed=0
[  259.294441]  ? __lock_acquire+0x62f/0x4c20
[  259.328617]  ? should_fail+0x22d/0xd01
[  259.332510]  ? rcu_irq_exit+0x1a2/0x390
[  259.336497]  ? mark_held_locks+0x130/0x130
[  259.340741]  ? mark_held_locks+0x130/0x130
[  259.344982]  ? mark_held_locks+0xc7/0x130
[  259.349134]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  259.354161]  ? zap_class+0x640/0x640
[  259.357872]  ? print_usage_bug+0xc0/0xc0
[  259.361940]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.367506]  ? check_preemption_disabled+0x48/0x280
[  259.372573]  ? __lock_is_held+0xb5/0x140
[  259.376648]  __alloc_pages_nodemask+0xad8/0xea0
[  259.381332]  ? zap_class+0x640/0x640
[  259.385048]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  259.390092]  ? find_held_lock+0x36/0x1c0
[  259.394179]  ? ____cache_alloc_node+0x1c7/0x1e0
[  259.398851]  ? lock_downgrade+0x900/0x900
[  259.403008]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.408569]  cache_grow_begin+0xa5/0x8c0
[  259.412628]  ? do_raw_spin_unlock+0xa7/0x330
[  259.417062]  fallback_alloc+0x204/0x2e0
[  259.421046]  ____cache_alloc_node+0x1c7/0x1e0
[  259.425545]  kmem_cache_alloc_node+0xe3/0x730
[  259.430046]  ? ipv6_get_ifaddr+0x42e/0x620
[  259.434307]  __alloc_skb+0x119/0x770
[  259.438019]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  259.443314]  ? netdev_alloc_frag+0x1f0/0x1f0
[  259.447719]  ? lock_downgrade+0x900/0x900
[  259.451878]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.457416]  ? refcount_sub_and_test_checked+0x203/0x310
[  259.462879]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  259.468329]  ? addrconf_rs_timer+0x690/0x690
[  259.472751]  ndisc_alloc_skb+0x144/0x340
[  259.476818]  ndisc_send_rs+0x331/0x6e0
[  259.480713]  addrconf_rs_timer+0x314/0x690
[  259.484953]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.489207]  call_timer_fn+0x272/0x920
[  259.493093]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.497344]  ? process_timeout+0x40/0x40
[  259.501413]  ? mark_held_locks+0xc7/0x130
[  259.505561]  ? _raw_spin_unlock_irq+0x27/0x80
[  259.510056]  ? _raw_spin_unlock_irq+0x27/0x80
[  259.514548]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.518783]  ? lockdep_hardirqs_on+0x296/0x5b0
[  259.523377]  ? trace_hardirqs_on+0xbd/0x310
[  259.527696]  ? kasan_check_read+0x11/0x20
[  259.531846]  ? __run_timers+0x7da/0xc70
[  259.535823]  ? trace_hardirqs_off_caller+0x310/0x310
[  259.540932]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.545178]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.549426]  __run_timers+0x7e5/0xc70
[  259.553239]  ? timer_fixup_init+0x70/0x70
[  259.557405]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  259.562438]  ? zap_class+0x640/0x640
[  259.566161]  ? print_usage_bug+0xc0/0xc0
[  259.570223]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  259.575435]  ? find_held_lock+0x36/0x1c0
[  259.579502]  ? zap_class+0x640/0x640
[  259.583222]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.588765]  ? check_preemption_disabled+0x48/0x280
[  259.593797]  ? __lock_is_held+0xb5/0x140
[  259.597862]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.603418]  ? check_preemption_disabled+0x48/0x280
[  259.608466]  run_timer_softirq+0x52/0xb0
[  259.612527]  ? rcu_read_lock_sched_held+0x14f/0x180
[  259.617549]  __do_softirq+0x308/0xb7e
[  259.621358]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  259.625848]  ? lock_downgrade+0x900/0x900
[  259.629999]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  259.635128]  ? pvclock_read_flags+0x160/0x160
[  259.639650]  ? lapic_next_event+0x5a/0x90
[  259.643806]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.649355]  ? kvm_clock_read+0x18/0x30
[  259.653327]  ? kvm_sched_clock_read+0x9/0x20
[  259.657742]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.663285]  ? check_preemption_disabled+0x48/0x280
[  259.668311]  irq_exit+0x17f/0x1c0
[  259.671771]  smp_apic_timer_interrupt+0x1cb/0x760
[  259.676614]  ? smp_reschedule_interrupt+0x109/0x650
[  259.681648]  ? smp_call_function_single_interrupt+0x650/0x650
[  259.687556]  ? interrupt_entry+0xb5/0xc0
[  259.691623]  ? trace_hardirqs_off_caller+0xbb/0x310
[  259.696652]  ? trace_hardirqs_off_caller+0xbb/0x310
[  259.701684]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  259.706544]  ? trace_hardirqs_on_caller+0x310/0x310
[  259.711556]  ? trace_hardirqs_on_caller+0x310/0x310
[  259.716582]  ? task_prio+0x50/0x50
[  259.720144]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.725699]  ? check_preemption_disabled+0x48/0x280
[  259.730720]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  259.735571]  apic_timer_interrupt+0xf/0x20
[  259.739800]  </IRQ>
[  259.742052] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  259.747258] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  259.766202] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  259.773948] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  259.781233] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  259.788521] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  259.795809] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  259.803094] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  259.810416]  retint_kernel+0x1b/0x2d
[  259.814207] RIP: 0010:dump_stack+0x358/0x39d
[  259.818630] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  259.837572] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  259.845305] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  259.852588] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  259.859869] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  259.867196] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  259.874465] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  259.881765]  ? dump_stack+0x34f/0x39d
[  259.885581]  ? dump_stack_print_info.cold.1+0x20/0x20
[  259.890776]  ? mark_held_locks+0x130/0x130
[  259.895023]  ? mark_held_locks+0x130/0x130
[  259.899259]  dump_header+0x27b/0xf72
[  259.902987]  ? pagefault_out_of_memory+0x197/0x197
[  259.907924]  ? __lock_acquire+0x62f/0x4c20
[  259.912224]  ? print_usage_bug+0xc0/0xc0
[  259.916321]  ? zap_class+0x640/0x640
[  259.920040]  ? print_usage_bug+0xc0/0xc0
[  259.924106]  ? print_usage_bug+0xc0/0xc0
[  259.928173]  ? print_usage_bug+0xc0/0xc0
[  259.932246]  ? find_held_lock+0x36/0x1c0
[  259.936357]  ? mark_held_locks+0xc7/0x130
[  259.940515]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  259.945630]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  259.950778]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  259.955374]  ? trace_hardirqs_on+0xbd/0x310
[  259.959701]  ? kasan_check_read+0x11/0x20
[  259.963856]  ? ___ratelimit+0x3b4/0x672
[  259.967859]  ? trace_hardirqs_off_caller+0x310/0x310
[  259.972974]  ? trace_hardirqs_on+0x310/0x310
[  259.977402]  ? lock_downgrade+0x900/0x900
[  259.981557]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  259.986688]  ? ___ratelimit+0x3b9/0x672
[  259.990670]  ? idr_get_free+0xf70/0xf70
[  259.994657]  ? kasan_check_read+0x11/0x20
[  259.998805]  ? do_raw_spin_unlock+0xa7/0x330
[  260.003226]  oom_kill_process.cold.27+0x10/0x903
[  260.007984]  ? zap_class+0x640/0x640
[  260.011701]  ? _raw_spin_unlock+0x2c/0x50
[  260.015851]  ? oom_badness+0xe6/0xaa0
[  260.019657]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  260.024592]  ? kasan_check_read+0x11/0x20
[  260.028744]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.034027]  ? oom_evaluate_task+0x540/0x540
[  260.038442]  ? find_held_lock+0x36/0x1c0
[  260.042512]  ? out_of_memory+0x974/0x1430
[  260.046667]  ? lock_downgrade+0x900/0x900
[  260.050822]  ? check_preemption_disabled+0x48/0x280
[  260.055843]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  260.060774]  ? kasan_check_read+0x11/0x20
[  260.064937]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.070212]  ? rcu_softirq_qs+0x20/0x20
[  260.074195]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.079734]  ? oom_evaluate_task+0x302/0x540
[  260.084176]  out_of_memory+0xa84/0x1430
[  260.088165]  ? oom_killer_disable+0x3a0/0x3a0
[  260.092702]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  260.097653]  ? __ww_mutex_check_waiters+0x160/0x160
[  260.102723]  __alloc_pages_slowpath+0x232c/0x2de0
[  260.107644]  ? warn_alloc+0x120/0x120
[  260.111448]  ? mark_held_locks+0x130/0x130
[  260.115713]  ? find_get_entry+0xaae/0x1120
[  260.119962]  ? filemap_map_pages+0x1a20/0x1a20
[  260.124561]  ? zap_class+0x640/0x640
[  260.128285]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.133839]  ? check_preemption_disabled+0x48/0x280
[  260.138859]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.144399]  ? should_fail+0x22d/0xd01
[  260.148290]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  260.153393]  ? zap_class+0x640/0x640
[  260.157135]  ? __lock_is_held+0xb5/0x140
[  260.161212]  ? mark_held_locks+0x130/0x130
[  260.165452]  ? lock_release+0xa00/0xa00
[  260.169602]  ? perf_trace_sched_process_exec+0x860/0x860
[  260.175062]  ? xa_load+0x2ba/0x460
[  260.178618]  ? lock_downgrade+0x900/0x900
[  260.182780]  ? __might_sleep+0x95/0x190
[  260.186766]  __alloc_pages_nodemask+0xad8/0xea0
[  260.191442]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  260.196458]  ? __page_cache_alloc+0x191/0x5c0
[  260.200955]  ? xa_load+0x2e1/0x460
[  260.204494]  ? xa_clear_mark+0x40/0x40
[  260.208382]  ? zap_class+0x640/0x640
[  260.212102]  ? zap_class+0x640/0x640
[  260.215813]  ? zap_class+0x640/0x640
[  260.219529]  ? __do_page_cache_readahead+0x663/0x810
[  260.224656]  ? find_held_lock+0x36/0x1c0
[  260.228736]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  260.234279]  alloc_pages_current+0x173/0x350
[  260.238700]  __page_cache_alloc+0x38c/0x5c0
[  260.243019]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  260.247948]  ? kasan_check_read+0x11/0x20
[  260.252111]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.257749]  ? generic_perform_write+0x6a0/0x6a0
[  260.262524]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.268071]  ? check_preemption_disabled+0x48/0x280
[  260.273136]  filemap_fault+0x1595/0x25f0
[  260.277223]  ? __lock_page_or_retry+0xa00/0xa00
[  260.281904]  ? mark_held_locks+0x130/0x130
[  260.286160]  ? filemap_map_pages+0xd6b/0x1a20
[  260.290667]  ? lock_downgrade+0x900/0x900
[  260.294819]  ? check_preemption_disabled+0x48/0x280
[  260.299840]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  260.304785]  ? kasan_check_read+0x11/0x20
[  260.308935]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.314209]  ? rcu_softirq_qs+0x20/0x20
[  260.318198]  ? filemap_map_pages+0xd92/0x1a20
[  260.322708]  ? find_get_entries_tag+0x1400/0x1400
[  260.327556]  ? debug_object_destroy+0x2b0/0x2b0
[  260.332228]  ? lock_pi_update_atomic+0x150/0x150
[  260.337000]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.342553]  ? lock_acquire+0x1ed/0x520
[  260.346525]  ? ext4_filemap_fault+0x7a/0xad
[  260.350856]  ? lock_release+0xa00/0xa00
[  260.354828]  ? perf_trace_sched_process_exec+0x860/0x860
[  260.360280]  ? print_usage_bug+0xc0/0xc0
[  260.364341]  ? print_usage_bug+0xc0/0xc0
[  260.368413]  ? down_read+0x8d/0x120
[  260.372039]  ? ext4_filemap_fault+0x7a/0xad
[  260.376358]  ? __down_interruptible+0x700/0x700
[  260.381036]  ext4_filemap_fault+0x82/0xad
[  260.385190]  __do_fault+0x100/0x6b0
[  260.388820]  ? pmd_devmap_trans_unstable+0x220/0x220
[  260.393926]  ? mark_held_locks+0x130/0x130
[  260.398200]  ? mark_held_locks+0x130/0x130
[  260.402437]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  260.407205]  ? retint_kernel+0x2d/0x2d
[  260.411107]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.416678]  __handle_mm_fault+0x3ea0/0x5be0
[  260.421113]  ? perf_trace_lock+0x7a0/0x7a0
[  260.425376]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  260.430250]  ? __switch_to_asm+0x34/0x70
[  260.434338]  ? __switch_to_asm+0x34/0x70
[  260.438430]  ? zap_class+0x640/0x640
[  260.442145]  ? zap_class+0x640/0x640
[  260.445868]  ? __x64_sys_futex+0x53e/0x6a0
[  260.450116]  ? find_held_lock+0x36/0x1c0
[  260.454222]  ? handle_mm_fault+0x42a/0xc70
[  260.458459]  ? lock_downgrade+0x900/0x900
[  260.462609]  ? check_preemption_disabled+0x48/0x280
[  260.467644]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  260.472578]  ? kasan_check_read+0x11/0x20
[  260.476729]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.482008]  ? rcu_softirq_qs+0x20/0x20
[  260.485985]  ? trace_hardirqs_off_caller+0x310/0x310
[  260.491092]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.496639]  ? check_preemption_disabled+0x48/0x280
[  260.501674]  handle_mm_fault+0x54f/0xc70
[  260.505753]  ? __handle_mm_fault+0x5be0/0x5be0
[  260.510338]  ? find_vma+0x34/0x190
[  260.513885]  __do_page_fault+0x5e8/0xe60
[  260.517945]  ? trace_hardirqs_off+0xb8/0x310
[  260.522360]  do_page_fault+0xf2/0x7e0
[  260.526167]  ? vmalloc_sync_all+0x30/0x30
[  260.530316]  ? error_entry+0x70/0xd0
[  260.534037]  ? trace_hardirqs_off_caller+0xbb/0x310
[  260.539050]  ? trace_hardirqs_on_caller+0xc0/0x310
[  260.543985]  ? syscall_return_slowpath+0x5e0/0x5e0
[  260.548913]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  260.553762]  ? trace_hardirqs_on_caller+0x310/0x310
[  260.559127]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  260.564604]  ? prepare_exit_to_usermode+0x291/0x3b0
[  260.569624]  ? page_fault+0x8/0x30
[  260.573195]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  260.578044]  ? page_fault+0x8/0x30
[  260.581591]  page_fault+0x1e/0x30
[  260.585048] RIP: 0033:0x4290d7
[  260.588265] Code: Bad RIP value.
[  260.591645] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  260.597013] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  260.604291] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  260.611582] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  260.618863] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  260.626347] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  260.633662] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  260.633738] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  260.640938] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  260.640943] Call Trace:
[  260.640955]  <IRQ>
[  260.640976]  dump_stack+0x244/0x39d
[  260.640995]  ? dump_stack_print_info.cold.1+0x20/0x20
[  260.647523] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  260.656833]  warn_alloc.cold.116+0xb7/0x1bd
[  260.659386] syz-fuzzer cpuset=/ mems_allowed=0
[  260.661526]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  260.694241]  ? lock_downgrade+0x900/0x900
[  260.698411]  ? trace_hardirqs_off+0xb8/0x310
[  260.702823]  ? trace_hardirqs_off+0xb8/0x310
[  260.707240]  __alloc_pages_slowpath+0x2651/0x2de0
[  260.712126]  ? warn_alloc+0x120/0x120
[  260.715930]  ? warn_alloc+0x120/0x120
[  260.719734]  ? zap_class+0x640/0x640
[  260.723450]  ? warn_alloc+0x120/0x120
[  260.727252]  ? print_usage_bug+0xc0/0xc0
[  260.731319]  ? print_usage_bug+0xc0/0xc0
[  260.735383]  ? __lock_is_held+0xb5/0x140
[  260.739468]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.745006]  ? should_fail+0x22d/0xd01
[  260.748910]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  260.754150]  ? __lock_acquire+0x62f/0x4c20
[  260.758390]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  260.763492]  ? __lock_acquire+0x62f/0x4c20
[  260.767731]  ? should_fail+0x22d/0xd01
[  260.771638]  ? mark_held_locks+0x130/0x130
[  260.775882]  ? mark_held_locks+0x130/0x130
[  260.780134]  ? try_to_wake_up+0x11c/0x1490
[  260.784409]  ? lock_downgrade+0x900/0x900
[  260.788568]  ? zap_class+0x640/0x640
[  260.792282]  ? print_usage_bug+0xc0/0xc0
[  260.796343]  ? trace_hardirqs_off+0xb8/0x310
[  260.800756]  ? kasan_check_read+0x11/0x20
[  260.804910]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.810454]  ? check_preemption_disabled+0x48/0x280
[  260.815483]  ? __lock_is_held+0xb5/0x140
[  260.819552]  __alloc_pages_nodemask+0xad8/0xea0
[  260.824225]  ? zap_class+0x640/0x640
[  260.827945]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  260.832978]  ? find_held_lock+0x36/0x1c0
[  260.837063]  ? ____cache_alloc_node+0x1c7/0x1e0
[  260.841744]  ? lock_downgrade+0x900/0x900
[  260.845928]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.851488]  cache_grow_begin+0xa5/0x8c0
[  260.855899]  ? do_raw_spin_unlock+0xa7/0x330
[  260.860315]  fallback_alloc+0x204/0x2e0
[  260.864294]  ____cache_alloc_node+0x1c7/0x1e0
[  260.868798]  kmem_cache_alloc_node+0xe3/0x730
[  260.873298]  ? ipv6_get_ifaddr+0x42e/0x620
[  260.877549]  __alloc_skb+0x119/0x770
[  260.881277]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.886562]  ? netdev_alloc_frag+0x1f0/0x1f0
[  260.890969]  ? lock_downgrade+0x900/0x900
[  260.895143]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.900701]  ? refcount_sub_and_test_checked+0x203/0x310
[  260.906152]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  260.911628]  ? addrconf_rs_timer+0x690/0x690
[  260.916095]  ndisc_alloc_skb+0x144/0x340
[  260.920179]  ndisc_send_rs+0x331/0x6e0
[  260.924090]  addrconf_rs_timer+0x314/0x690
[  260.928333]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  260.932579]  call_timer_fn+0x272/0x920
[  260.936469]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  260.940711]  ? process_timeout+0x40/0x40
[  260.944795]  ? __run_timers+0x7da/0xc70
[  260.948788]  ? _raw_spin_unlock_irq+0x27/0x80
[  260.953289]  ? _raw_spin_unlock_irq+0x27/0x80
[  260.957788]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  260.962040]  ? lockdep_hardirqs_on+0x296/0x5b0
[  260.966627]  ? trace_hardirqs_on+0xbd/0x310
[  260.970994]  ? kasan_check_read+0x11/0x20
[  260.975157]  ? __run_timers+0x7da/0xc70
[  260.979135]  ? trace_hardirqs_off_caller+0x310/0x310
[  260.984241]  ? __queue_work+0x1440/0x1440
[  260.988428]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  260.992703]  __run_timers+0x7e5/0xc70
[  260.996529]  ? timer_fixup_init+0x70/0x70
[  261.000696]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  261.005716]  ? zap_class+0x640/0x640
[  261.009451]  ? enqueue_hrtimer+0x1a5/0x560
[  261.013717]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  261.018913]  ? find_held_lock+0x36/0x1c0
[  261.022982]  ? zap_class+0x640/0x640
[  261.026702]  ? pvclock_read_flags+0x160/0x160
[  261.031209]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.036748]  ? check_preemption_disabled+0x48/0x280
[  261.041777]  ? __lock_is_held+0xb5/0x140
[  261.045845]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.051385]  ? check_preemption_disabled+0x48/0x280
[  261.056406]  run_timer_softirq+0x52/0xb0
[  261.060496]  ? rcu_read_lock_sched_held+0x14f/0x180
[  261.065518]  __do_softirq+0x308/0xb7e
[  261.069349]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  261.073861]  ? lock_downgrade+0x900/0x900
[  261.078013]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  261.083125]  ? pvclock_read_flags+0x160/0x160
[  261.087626]  ? lapic_next_event+0x5a/0x90
[  261.091803]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.097357]  ? kvm_clock_read+0x18/0x30
[  261.101335]  ? kvm_sched_clock_read+0x9/0x20
[  261.105755]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.111301]  ? check_preemption_disabled+0x48/0x280
[  261.116336]  irq_exit+0x17f/0x1c0
[  261.119802]  smp_apic_timer_interrupt+0x1cb/0x760
[  261.124665]  ? smp_reschedule_interrupt+0x109/0x650
[  261.129697]  ? smp_call_function_single_interrupt+0x650/0x650
[  261.135609]  ? interrupt_entry+0xb5/0xc0
[  261.139688]  ? trace_hardirqs_off_caller+0xbb/0x310
[  261.144710]  ? trace_hardirqs_off_caller+0xbb/0x310
[  261.149729]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  261.154571]  ? trace_hardirqs_on_caller+0x310/0x310
[  261.159595]  ? trace_hardirqs_on_caller+0x310/0x310
[  261.164649]  ? task_prio+0x50/0x50
[  261.168201]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.173740]  ? check_preemption_disabled+0x48/0x280
[  261.178761]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  261.183615]  apic_timer_interrupt+0xf/0x20
[  261.187853]  </IRQ>
[  261.190108] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  261.195055] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  261.213961] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  261.221703] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  261.228985] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  261.236251] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  261.243516] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  261.250795] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  261.258109]  skb_clone+0x1bb/0x500
[  261.261667]  ? skb_split+0x11e0/0x11e0
[  261.265565]  ? preempt_notifier_register+0x200/0x200
[  261.270681]  ? __switch_to_asm+0x34/0x70
[  261.274753]  ? __switch_to_asm+0x34/0x70
[  261.278818]  ? __switch_to_asm+0x40/0x70
[  261.282886]  ? __switch_to_asm+0x34/0x70
[  261.286948]  ? __switch_to_asm+0x40/0x70
[  261.291012]  ? __switch_to_asm+0x40/0x70
[  261.295112]  ? __switch_to_asm+0x34/0x70
[  261.299192]  ? __switch_to_asm+0x34/0x70
[  261.303250]  ? __switch_to_asm+0x40/0x70
[  261.307311]  ? __switch_to_asm+0x34/0x70
[  261.311380]  bpf_clone_redirect+0xb9/0x490
[  261.315627]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  261.320676]  ? __sched_text_start+0x8/0x8
[  261.324834]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  261.329417]  ? retint_kernel+0x2d/0x2d
[  261.333321]  ? trace_hardirqs_on_caller+0xc0/0x310
[  261.338258]  ? find_held_lock+0x36/0x1c0
[  261.342323]  ? lock_acquire+0x1ed/0x520
[  261.346296]  ? bpf_test_run+0x3cb/0x780
[  261.350270]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.355811]  ? check_preemption_disabled+0x48/0x280
[  261.360832]  ? kasan_check_read+0x11/0x20
[  261.364980]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  261.370257]  ? rcu_softirq_qs+0x20/0x20
[  261.374280]  ? preempt_schedule+0x4d/0x60
[  261.378431]  ? ___preempt_schedule+0x16/0x18
[  261.382855]  ? bpf_test_run+0x25d/0x780
[  261.386839]  ? netlink_diag_dump+0x2a0/0x2a0
[  261.391261]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  261.396804]  ? bpf_test_init.isra.10+0x70/0x100
[  261.401479]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  261.406247]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  261.411093]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  261.416641]  ? fput+0x130/0x1a0
[  261.419929]  ? __bpf_prog_get+0x9b/0x290
[  261.423998]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  261.428842]  ? bpf_prog_test_run+0x130/0x1a0
[  261.433257]  ? __x64_sys_bpf+0x3db/0x520
[  261.437322]  ? bpf_prog_get+0x20/0x20
[  261.441148]  ? do_syscall_64+0x1b9/0x820
[  261.445214]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  261.450613]  ? syscall_return_slowpath+0x5e0/0x5e0
[  261.455576]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  261.460427]  ? trace_hardirqs_on_caller+0x310/0x310
[  261.465453]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  261.470480]  ? prepare_exit_to_usermode+0x291/0x3b0
[  261.475507]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  261.480361]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  261.485740] warn_alloc_show_mem: 1 callbacks suppressed
[  261.485762] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  261.485764] Mem-Info:
[  261.485805] active_anon:57128 inactive_anon:971 isolated_anon:0
[  261.485805]  active_file:40 inactive_file:20 isolated_file:0
[  261.485805]  unevictable:0 dirty:11 writeback:0 unstable:0
[  261.485805]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  261.485805]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  261.485805]  free:13615 free_pcp:64 free_cma:0
[  261.491142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  261.498165] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  261.500570] Call Trace:
[  261.533533] 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
[  261.542896]  <IRQ>
[  261.570863] lowmem_reserve[]: 0 2818 6321 6321
[  261.573456]  dump_stack+0x244/0x39d
[  261.599548] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  261.601709]  ? dump_stack_print_info.cold.1+0x20/0x20
[  261.606255] lowmem_reserve[]: 0 0 3503 3503
[  261.609893]  warn_alloc.cold.116+0xb7/0x1bd
[  261.637363] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  261.642557]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  261.646859] lowmem_reserve[]: 0 0 0 0
[  261.651185]  ? lock_downgrade+0x900/0x900
[  261.680314] 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
[  261.685172]  ? trace_hardirqs_off+0xb8/0x310
[  261.688937] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  261.693086]  ? trace_hardirqs_off+0xb8/0x310
[  261.706584] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  261.711137]  __alloc_pages_slowpath+0x2651/0x2de0
[  261.726199] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  261.730628]  ? warn_alloc+0x120/0x120
[  261.746117] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  261.750951]  ? print_usage_bug+0xc0/0xc0
[  261.759756] 5171 total pagecache pages
[  261.763549]  ? warn_alloc+0x120/0x120
[  261.772113] 0 pages in swap cache
[  261.776179]  ? warn_alloc+0x120/0x120
[  261.780042] Swap cache stats: add 0, delete 0, find 0/0
[  261.783838]  ? print_usage_bug+0xc0/0xc0
[  261.787276] Free swap  = 0kB
[  261.791073]  ? print_usage_bug+0xc0/0xc0
[  261.796412] Total swap = 0kB
[  261.800477]  ? __lock_acquire+0x62f/0x4c20
[  261.803470] 1965979 pages RAM
[  261.807540]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  261.810543] 0 pages HighMem/MovableOnly
[  261.814778]  ? should_fail+0x22d/0xd01
[  261.817860] 342854 pages reserved
[  261.823388]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  261.827335] 0 pages cma reserved
[  261.831214]  ? __lock_acquire+0x62f/0x4c20
[  261.834723] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  261.839745]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  261.843209] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  261.847316]  ? __lock_acquire+0x62f/0x4c20
[  261.853780] syz-executor2 cpuset=syz2 mems_allowed=0
[  261.858879]  ? should_fail+0x22d/0xd01
[  261.882556]  ? find_held_lock+0x36/0x1c0
[  261.886625]  ? mark_held_locks+0x130/0x130
[  261.890876]  ? mark_held_locks+0x130/0x130
[  261.895110]  ? zap_class+0x640/0x640
[  261.898855]  ? zap_class+0x640/0x640
[  261.902569]  ? print_usage_bug+0xc0/0xc0
[  261.906625]  ? do_raw_spin_unlock+0xa7/0x330
[  261.911043]  ? zap_class+0x640/0x640
[  261.914754]  ? print_usage_bug+0xc0/0xc0
[  261.918814]  ? wq_watchdog_touch+0x9c/0xfe
[  261.923053]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.928596]  ? check_preemption_disabled+0x48/0x280
[  261.933622]  ? __lock_is_held+0xb5/0x140
[  261.937702]  __alloc_pages_nodemask+0xad8/0xea0
[  261.942369]  ? zap_class+0x640/0x640
[  261.946088]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  261.951123]  ? find_held_lock+0x36/0x1c0
[  261.955246]  ? ____cache_alloc_node+0x1c7/0x1e0
[  261.959916]  ? lock_downgrade+0x900/0x900
[  261.964101]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.969667]  cache_grow_begin+0xa5/0x8c0
[  261.973730]  ? do_raw_spin_unlock+0xa7/0x330
[  261.978144]  fallback_alloc+0x204/0x2e0
[  261.982128]  ____cache_alloc_node+0x1c7/0x1e0
[  261.986631]  kmem_cache_alloc_node+0xe3/0x730
[  261.991137]  ? ipv6_get_ifaddr+0x42e/0x620
[  261.995387]  __alloc_skb+0x119/0x770
[  261.999097]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  262.004379]  ? netdev_alloc_frag+0x1f0/0x1f0
[  262.008802]  ? lock_downgrade+0x900/0x900
[  262.013006]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.018542]  ? refcount_sub_and_test_checked+0x203/0x310
[  262.023994]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  262.029444]  ? addrconf_rs_timer+0x690/0x690
[  262.033869]  ndisc_alloc_skb+0x144/0x340
[  262.037936]  ndisc_send_rs+0x331/0x6e0
[  262.041830]  addrconf_rs_timer+0x314/0x690
[  262.046069]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.050346]  call_timer_fn+0x272/0x920
[  262.054228]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.058458]  ? process_timeout+0x40/0x40
[  262.062533]  ? mark_held_locks+0xc7/0x130
[  262.066708]  ? _raw_spin_unlock_irq+0x27/0x80
[  262.071222]  ? _raw_spin_unlock_irq+0x27/0x80
[  262.075729]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.079964]  ? lockdep_hardirqs_on+0x296/0x5b0
[  262.084546]  ? trace_hardirqs_on+0xbd/0x310
[  262.088863]  ? kasan_check_read+0x11/0x20
[  262.093021]  ? __run_timers+0x7da/0xc70
[  262.096998]  ? trace_hardirqs_off_caller+0x310/0x310
[  262.102105]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.106345]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.110576]  __run_timers+0x7e5/0xc70
[  262.114415]  ? timer_fixup_init+0x70/0x70
[  262.118563]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  262.123611]  ? zap_class+0x640/0x640
[  262.127353]  ? print_usage_bug+0xc0/0xc0
[  262.131414]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  262.136618]  ? find_held_lock+0x36/0x1c0
[  262.140710]  ? zap_class+0x640/0x640
[  262.144444]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.149981]  ? check_preemption_disabled+0x48/0x280
[  262.155008]  ? __lock_is_held+0xb5/0x140
[  262.159071]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.164608]  ? check_preemption_disabled+0x48/0x280
[  262.169644]  run_timer_softirq+0x52/0xb0
[  262.173706]  ? rcu_read_lock_sched_held+0x14f/0x180
[  262.178725]  __do_softirq+0x308/0xb7e
[  262.182530]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  262.187040]  ? lock_downgrade+0x900/0x900
[  262.191207]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  262.196316]  ? pvclock_read_flags+0x160/0x160
[  262.200815]  ? lapic_next_event+0x5a/0x90
[  262.204968]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.210510]  ? kvm_clock_read+0x18/0x30
[  262.214484]  ? kvm_sched_clock_read+0x9/0x20
[  262.218896]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.224451]  ? check_preemption_disabled+0x48/0x280
[  262.229472]  irq_exit+0x17f/0x1c0
[  262.232952]  smp_apic_timer_interrupt+0x1cb/0x760
[  262.237808]  ? smp_reschedule_interrupt+0x109/0x650
[  262.242830]  ? smp_call_function_single_interrupt+0x650/0x650
[  262.248732]  ? interrupt_entry+0xb5/0xc0
[  262.252795]  ? trace_hardirqs_off_caller+0xbb/0x310
[  262.257810]  ? trace_hardirqs_off_caller+0xbb/0x310
[  262.262829]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  262.267677]  ? trace_hardirqs_on_caller+0x310/0x310
[  262.272692]  ? trace_hardirqs_on_caller+0x310/0x310
[  262.277705]  ? task_prio+0x50/0x50
[  262.281244]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.286782]  ? check_preemption_disabled+0x48/0x280
[  262.291808]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  262.296665]  apic_timer_interrupt+0xf/0x20
[  262.300893]  </IRQ>
[  262.303131] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  262.308327] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  262.327228] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  262.334938] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  262.342214] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  262.349486] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  262.356755] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  262.364020] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  262.371324]  retint_kernel+0x1b/0x2d
[  262.375037] RIP: 0010:dump_stack+0x358/0x39d
[  262.379443] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  262.398341] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  262.406062] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  262.413327] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  262.420599] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  262.427875] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  262.435144] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  262.442441]  ? dump_stack+0x34f/0x39d
[  262.446270]  ? dump_stack_print_info.cold.1+0x20/0x20
[  262.451463]  ? mark_held_locks+0x130/0x130
[  262.455701]  ? mark_held_locks+0x130/0x130
[  262.459944]  dump_header+0x27b/0xf72
[  262.463678]  ? pagefault_out_of_memory+0x197/0x197
[  262.468614]  ? __lock_acquire+0x62f/0x4c20
[  262.472858]  ? print_usage_bug+0xc0/0xc0
[  262.476924]  ? zap_class+0x640/0x640
[  262.480647]  ? print_usage_bug+0xc0/0xc0
[  262.484729]  ? print_usage_bug+0xc0/0xc0
[  262.488800]  ? print_usage_bug+0xc0/0xc0
[  262.492868]  ? find_held_lock+0x36/0x1c0
[  262.496939]  ? mark_held_locks+0xc7/0x130
[  262.501091]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  262.506195]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  262.511299]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  262.515894]  ? trace_hardirqs_on+0xbd/0x310
[  262.520222]  ? kasan_check_read+0x11/0x20
[  262.524394]  ? ___ratelimit+0x3b4/0x672
[  262.528384]  ? trace_hardirqs_off_caller+0x310/0x310
[  262.533487]  ? trace_hardirqs_on+0x310/0x310
[  262.537899]  ? lock_downgrade+0x900/0x900
[  262.542050]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  262.547166]  ? ___ratelimit+0x3b9/0x672
[  262.551140]  ? idr_get_free+0xf70/0xf70
[  262.555114]  ? kasan_check_read+0x11/0x20
[  262.559258]  ? do_raw_spin_unlock+0xa7/0x330
[  262.563690]  oom_kill_process.cold.27+0x10/0x903
[  262.568447]  ? zap_class+0x640/0x640
[  262.572166]  ? _raw_spin_unlock+0x2c/0x50
[  262.576310]  ? oom_badness+0xe6/0xaa0
[  262.580112]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  262.585044]  ? kasan_check_read+0x11/0x20
[  262.589195]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  262.594470]  ? oom_evaluate_task+0x540/0x540
[  262.598887]  ? find_held_lock+0x36/0x1c0
[  262.602953]  ? out_of_memory+0x974/0x1430
[  262.607103]  ? lock_downgrade+0x900/0x900
[  262.611250]  ? check_preemption_disabled+0x48/0x280
[  262.616267]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  262.621212]  ? kasan_check_read+0x11/0x20
[  262.625361]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  262.630644]  ? rcu_softirq_qs+0x20/0x20
[  262.634625]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  262.640175]  ? oom_evaluate_task+0x302/0x540
[  262.644585]  out_of_memory+0xa84/0x1430
[  262.648569]  ? oom_killer_disable+0x3a0/0x3a0
[  262.653066]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  262.657999]  ? __ww_mutex_check_waiters+0x160/0x160
[  262.663032]  __alloc_pages_slowpath+0x232c/0x2de0
[  262.667903]  ? warn_alloc+0x120/0x120
[  262.671707]  ? mark_held_locks+0x130/0x130
[  262.675945]  ? find_get_entry+0xaae/0x1120
[  262.680193]  ? filemap_map_pages+0x1a20/0x1a20
[  262.684779]  ? zap_class+0x640/0x640
[  262.688498]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.694038]  ? check_preemption_disabled+0x48/0x280
[  262.699055]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  262.704593]  ? should_fail+0x22d/0xd01
[  262.708485]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  262.713600]  ? zap_class+0x640/0x640
[  262.717359]  ? __lock_is_held+0xb5/0x140
[  262.721432]  ? mark_held_locks+0x130/0x130
[  262.725676]  ? lock_release+0xa00/0xa00
[  262.729663]  ? perf_trace_sched_process_exec+0x860/0x860
[  262.735116]  ? xa_load+0x2ba/0x460
[  262.738665]  ? lock_downgrade+0x900/0x900
[  262.742824]  ? __might_sleep+0x95/0x190
[  262.746809]  __alloc_pages_nodemask+0xad8/0xea0
[  262.751484]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  262.757014]  ? __page_cache_alloc+0x191/0x5c0
[  262.761509]  ? xa_load+0x2e1/0x460
[  262.765047]  ? xa_clear_mark+0x40/0x40
[  262.768934]  ? zap_class+0x640/0x640
[  262.772662]  ? zap_class+0x640/0x640
[  262.776374]  ? zap_class+0x640/0x640
[  262.780086]  ? __do_page_cache_readahead+0x663/0x810
[  262.785212]  ? find_held_lock+0x36/0x1c0
[  262.789282]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  262.794826]  alloc_pages_current+0x173/0x350
[  262.799243]  __page_cache_alloc+0x38c/0x5c0
[  262.803565]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  262.808498]  ? kasan_check_read+0x11/0x20
[  262.812666]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  262.817965]  ? generic_perform_write+0x6a0/0x6a0
[  262.822726]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  262.828268]  ? check_preemption_disabled+0x48/0x280
[  262.833304]  filemap_fault+0x1595/0x25f0
[  262.837378]  ? __lock_page_or_retry+0xa00/0xa00
[  262.842048]  ? mark_held_locks+0x130/0x130
[  262.846292]  ? filemap_map_pages+0xd6b/0x1a20
[  262.850789]  ? lock_downgrade+0x900/0x900
[  262.854939]  ? check_preemption_disabled+0x48/0x280
[  262.859960]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  262.864894]  ? kasan_check_read+0x11/0x20
[  262.869041]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  262.874315]  ? rcu_softirq_qs+0x20/0x20
[  262.878301]  ? filemap_map_pages+0xd92/0x1a20
[  262.882840]  ? find_get_entries_tag+0x1400/0x1400
[  262.887690]  ? debug_object_destroy+0x2b0/0x2b0
[  262.892364]  ? lock_pi_update_atomic+0x150/0x150
[  262.897121]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.902686]  ? lock_acquire+0x1ed/0x520
[  262.906669]  ? ext4_filemap_fault+0x7a/0xad
[  262.911001]  ? lock_release+0xa00/0xa00
[  262.914972]  ? perf_trace_sched_process_exec+0x860/0x860
[  262.920443]  ? print_usage_bug+0xc0/0xc0
[  262.924504]  ? print_usage_bug+0xc0/0xc0
[  262.928576]  ? down_read+0x8d/0x120
[  262.932198]  ? ext4_filemap_fault+0x7a/0xad
[  262.936517]  ? __down_interruptible+0x700/0x700
[  262.941202]  ext4_filemap_fault+0x82/0xad
[  262.945352]  __do_fault+0x100/0x6b0
[  262.948985]  ? pmd_devmap_trans_unstable+0x220/0x220
[  262.954090]  ? mark_held_locks+0x130/0x130
[  262.958344]  ? mark_held_locks+0x130/0x130
[  262.962578]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  262.967342]  ? retint_kernel+0x2d/0x2d
[  262.971231]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  262.976789]  __handle_mm_fault+0x3ea0/0x5be0
[  262.981199]  ? perf_trace_lock+0x7a0/0x7a0
[  262.985444]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  262.990292]  ? __switch_to_asm+0x34/0x70
[  262.994366]  ? __switch_to_asm+0x34/0x70
[  262.998439]  ? zap_class+0x640/0x640
[  263.002159]  ? zap_class+0x640/0x640
[  263.005876]  ? __x64_sys_futex+0x53e/0x6a0
[  263.010128]  ? find_held_lock+0x36/0x1c0
[  263.014205]  ? handle_mm_fault+0x42a/0xc70
[  263.018445]  ? lock_downgrade+0x900/0x900
[  263.022596]  ? check_preemption_disabled+0x48/0x280
[  263.027616]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  263.032553]  ? kasan_check_read+0x11/0x20
[  263.036697]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  263.041975]  ? rcu_softirq_qs+0x20/0x20
[  263.045949]  ? trace_hardirqs_off_caller+0x310/0x310
[  263.051053]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.056591]  ? check_preemption_disabled+0x48/0x280
[  263.061615]  handle_mm_fault+0x54f/0xc70
[  263.065690]  ? __handle_mm_fault+0x5be0/0x5be0
[  263.070274]  ? find_vma+0x34/0x190
[  263.073822]  __do_page_fault+0x5e8/0xe60
[  263.077881]  ? trace_hardirqs_off+0xb8/0x310
[  263.082310]  do_page_fault+0xf2/0x7e0
[  263.086115]  ? vmalloc_sync_all+0x30/0x30
[  263.090267]  ? error_entry+0x70/0xd0
[  263.093983]  ? trace_hardirqs_off_caller+0xbb/0x310
[  263.099000]  ? trace_hardirqs_on_caller+0xc0/0x310
[  263.103926]  ? syscall_return_slowpath+0x5e0/0x5e0
[  263.108862]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  263.113703]  ? trace_hardirqs_on_caller+0x310/0x310
[  263.118719]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  263.124180]  ? prepare_exit_to_usermode+0x291/0x3b0
[  263.129198]  ? page_fault+0x8/0x30
[  263.132746]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  263.137595]  ? page_fault+0x8/0x30
[  263.141142]  page_fault+0x1e/0x30
[  263.144595] RIP: 0033:0x4290d7
[  263.147800] Code: Bad RIP value.
[  263.151164] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  263.156527] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  263.163801] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  263.171072] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  263.178374] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  263.185650] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  263.192947] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  263.193020] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  263.200232] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  263.200237] Call Trace:
[  263.200244]  <IRQ>
[  263.200266]  dump_stack+0x244/0x39d
[  263.200299]  ? dump_stack_print_info.cold.1+0x20/0x20
[  263.206821] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  263.216131]  warn_alloc.cold.116+0xb7/0x1bd
[  263.218695] syz-fuzzer cpuset=/ mems_allowed=0
[  263.220837]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  263.253549]  ? lock_downgrade+0x900/0x900
[  263.257712]  ? trace_hardirqs_off+0xb8/0x310
[  263.262127]  ? trace_hardirqs_off+0xb8/0x310
[  263.266544]  __alloc_pages_slowpath+0x2651/0x2de0
[  263.271419]  ? warn_alloc+0x120/0x120
[  263.275237]  ? print_usage_bug+0xc0/0xc0
[  263.279294]  ? warn_alloc+0x120/0x120
[  263.283096]  ? warn_alloc+0x120/0x120
[  263.286896]  ? print_usage_bug+0xc0/0xc0
[  263.290955]  ? kvm_clock_read+0x18/0x30
[  263.294928]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  263.299949]  ? print_usage_bug+0xc0/0xc0
[  263.304012]  ? __lock_acquire+0x62f/0x4c20
[  263.308269]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.313804]  ? should_fail+0x22d/0xd01
[  263.317689]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  263.322973]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  263.328075]  ? __lock_acquire+0x62f/0x4c20
[  263.332315]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  263.337416]  ? __lock_acquire+0x62f/0x4c20
[  263.341676]  ? should_fail+0x22d/0xd01
[  263.345576]  ? rcu_irq_exit+0x1a2/0x390
[  263.349562]  ? mark_held_locks+0x130/0x130
[  263.353822]  ? mark_held_locks+0x130/0x130
[  263.358063]  ? mark_held_locks+0xc7/0x130
[  263.362211]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  263.367253]  ? zap_class+0x640/0x640
[  263.370963]  ? print_usage_bug+0xc0/0xc0
[  263.375032]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.380569]  ? check_preemption_disabled+0x48/0x280
[  263.385597]  ? __lock_is_held+0xb5/0x140
[  263.389677]  __alloc_pages_nodemask+0xad8/0xea0
[  263.394346]  ? zap_class+0x640/0x640
[  263.398104]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  263.403130]  ? find_held_lock+0x36/0x1c0
[  263.407206]  ? ____cache_alloc_node+0x1c7/0x1e0
[  263.411875]  ? lock_downgrade+0x900/0x900
[  263.416032]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.421578]  cache_grow_begin+0xa5/0x8c0
[  263.425648]  ? do_raw_spin_unlock+0xa7/0x330
[  263.430074]  fallback_alloc+0x204/0x2e0
[  263.434055]  ____cache_alloc_node+0x1c7/0x1e0
[  263.438556]  kmem_cache_alloc_node+0xe3/0x730
[  263.443057]  ? ipv6_get_ifaddr+0x42e/0x620
[  263.447306]  __alloc_skb+0x119/0x770
[  263.451020]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  263.456302]  ? netdev_alloc_frag+0x1f0/0x1f0
[  263.460714]  ? lock_downgrade+0x900/0x900
[  263.464873]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.470413]  ? refcount_sub_and_test_checked+0x203/0x310
[  263.475868]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  263.481336]  ? addrconf_rs_timer+0x690/0x690
[  263.485769]  ndisc_alloc_skb+0x144/0x340
[  263.489834]  ndisc_send_rs+0x331/0x6e0
[  263.493732]  addrconf_rs_timer+0x314/0x690
[  263.497976]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  263.502220]  call_timer_fn+0x272/0x920
[  263.506121]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  263.510355]  ? process_timeout+0x40/0x40
[  263.514421]  ? __run_timers+0x7da/0xc70
[  263.518395]  ? _raw_spin_unlock_irq+0x27/0x80
[  263.522900]  ? _raw_spin_unlock_irq+0x27/0x80
[  263.527393]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  263.531640]  ? lockdep_hardirqs_on+0x296/0x5b0
[  263.536229]  ? trace_hardirqs_on+0xbd/0x310
[  263.540549]  ? kasan_check_read+0x11/0x20
[  263.544700]  ? __run_timers+0x7da/0xc70
[  263.548685]  ? trace_hardirqs_off_caller+0x310/0x310
[  263.553797]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  263.558040]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  263.562283]  __run_timers+0x7e5/0xc70
[  263.566107]  ? timer_fixup_init+0x70/0x70
[  263.570272]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  263.575312]  ? zap_class+0x640/0x640
[  263.579030]  ? enqueue_hrtimer+0x1a5/0x560
[  263.583264]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  263.588460]  ? find_held_lock+0x36/0x1c0
[  263.592523]  ? zap_class+0x640/0x640
[  263.596238]  ? pvclock_read_flags+0x160/0x160
[  263.600738]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.606275]  ? check_preemption_disabled+0x48/0x280
[  263.611299]  ? __lock_is_held+0xb5/0x140
[  263.615361]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.620901]  ? check_preemption_disabled+0x48/0x280
[  263.625923]  run_timer_softirq+0x52/0xb0
[  263.629989]  ? rcu_read_lock_sched_held+0x14f/0x180
[  263.635009]  __do_softirq+0x308/0xb7e
[  263.638816]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  263.643312]  ? lock_downgrade+0x900/0x900
[  263.647468]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  263.652584]  ? pvclock_read_flags+0x160/0x160
[  263.657081]  ? lapic_next_event+0x5a/0x90
[  263.661229]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.666772]  ? kvm_clock_read+0x18/0x30
[  263.670750]  ? kvm_sched_clock_read+0x9/0x20
[  263.675161]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.680703]  ? check_preemption_disabled+0x48/0x280
[  263.685730]  irq_exit+0x17f/0x1c0
[  263.689191]  smp_apic_timer_interrupt+0x1cb/0x760
[  263.694043]  ? smp_reschedule_interrupt+0x109/0x650
[  263.699078]  ? smp_call_function_single_interrupt+0x650/0x650
[  263.704975]  ? interrupt_entry+0xb5/0xc0
[  263.709047]  ? trace_hardirqs_off_caller+0xbb/0x310
[  263.714062]  ? trace_hardirqs_off_caller+0xbb/0x310
[  263.719082]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  263.723927]  ? trace_hardirqs_on_caller+0x310/0x310
[  263.728942]  ? trace_hardirqs_on_caller+0x310/0x310
[  263.733960]  ? task_prio+0x50/0x50
[  263.737502]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.743040]  ? check_preemption_disabled+0x48/0x280
[  263.748062]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  263.752916]  apic_timer_interrupt+0xf/0x20
[  263.757174]  </IRQ>
[  263.759429] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  263.764361] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  263.783258] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  263.790987] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  263.798255] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  263.805524] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  263.812787] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  263.820055] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  263.827366]  skb_clone+0x1bb/0x500
[  263.830913]  ? skb_split+0x11e0/0x11e0
[  263.834813]  ? preempt_notifier_register+0x200/0x200
[  263.839914]  ? __switch_to_asm+0x34/0x70
[  263.843972]  ? __switch_to_asm+0x34/0x70
[  263.848031]  ? __switch_to_asm+0x40/0x70
[  263.852090]  ? __switch_to_asm+0x34/0x70
[  263.856150]  ? __switch_to_asm+0x40/0x70
[  263.860213]  ? __switch_to_asm+0x40/0x70
[  263.864270]  ? __switch_to_asm+0x34/0x70
[  263.868332]  ? __switch_to_asm+0x34/0x70
[  263.872407]  ? __switch_to_asm+0x40/0x70
[  263.876478]  ? __switch_to_asm+0x34/0x70
[  263.880546]  bpf_clone_redirect+0xb9/0x490
[  263.884793]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  263.889841]  ? __sched_text_start+0x8/0x8
[  263.893992]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  263.898599]  ? retint_kernel+0x2d/0x2d
[  263.902497]  ? trace_hardirqs_on_caller+0xc0/0x310
[  263.907463]  ? find_held_lock+0x36/0x1c0
[  263.911533]  ? lock_acquire+0x1ed/0x520
[  263.915505]  ? bpf_test_run+0x3cb/0x780
[  263.919500]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.925041]  ? check_preemption_disabled+0x48/0x280
[  263.930061]  ? kasan_check_read+0x11/0x20
[  263.934209]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  263.939515]  ? rcu_softirq_qs+0x20/0x20
[  263.943492]  ? preempt_schedule+0x4d/0x60
[  263.947659]  ? ___preempt_schedule+0x16/0x18
[  263.952078]  ? bpf_test_run+0x25d/0x780
[  263.956096]  ? netlink_diag_dump+0x2a0/0x2a0
[  263.960506]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.966041]  ? bpf_test_init.isra.10+0x70/0x100
[  263.970713]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  263.975480]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  263.980319]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  263.985867]  ? fput+0x130/0x1a0
[  263.989156]  ? __bpf_prog_get+0x9b/0x290
[  263.993223]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  263.998066]  ? bpf_prog_test_run+0x130/0x1a0
[  264.002483]  ? __x64_sys_bpf+0x3db/0x520
[  264.006573]  ? bpf_prog_get+0x20/0x20
[  264.010401]  ? do_syscall_64+0x1b9/0x820
[  264.014467]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  264.019838]  ? syscall_return_slowpath+0x5e0/0x5e0
[  264.024783]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  264.029628]  ? trace_hardirqs_on_caller+0x310/0x310
[  264.034668]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  264.039691]  ? prepare_exit_to_usermode+0x291/0x3b0
[  264.044714]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  264.049565]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  264.054950] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  264.054955] warn_alloc_show_mem: 1 callbacks suppressed
[  264.054962] Mem-Info:
[  264.061969] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  264.067339] active_anon:57128 inactive_anon:971 isolated_anon:0
[  264.067339]  active_file:40 inactive_file:20 isolated_file:0
[  264.067339]  unevictable:0 dirty:11 writeback:0 unstable:0
[  264.067339]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  264.067339]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  264.067339]  free:13615 free_pcp:64 free_cma:0
[  264.069727] Call Trace:
[  264.079113] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  264.112049]  <IRQ>
[  264.114619] 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
[  264.142562]  dump_stack+0x244/0x39d
[  264.144682] lowmem_reserve[]: 0 2818 6321 6321
[  264.170812]  ? dump_stack_print_info.cold.1+0x20/0x20
[  264.174404] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  264.178992]  warn_alloc.cold.116+0xb7/0x1bd
[  264.184145] lowmem_reserve[]: 0 0 3503 3503
[  264.211654]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  264.215950] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  264.220272]  ? lock_downgrade+0x900/0x900
[  264.225086] lowmem_reserve[]: 0 0 0 0
[  264.254234]  ? trace_hardirqs_off+0xb8/0x310
[  264.258353] 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
[  264.262148]  ? trace_hardirqs_off+0xb8/0x310
[  264.266526] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  264.280049]  __alloc_pages_slowpath+0x2651/0x2de0
[  264.284428] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  264.299527]  ? warn_alloc+0x120/0x120
[  264.304326] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  264.319832]  ? print_usage_bug+0xc0/0xc0
[  264.323612] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  264.332433]  ? warn_alloc+0x120/0x120
[  264.336476] 5171 total pagecache pages
[  264.345035]  ? warn_alloc+0x120/0x120
[  264.348816] 0 pages in swap cache
[  264.352694]  ? print_usage_bug+0xc0/0xc0
[  264.356470] Swap cache stats: add 0, delete 0, find 0/0
[  264.359914]  ? print_usage_bug+0xc0/0xc0
[  264.363951] Free swap  = 0kB
[  264.369306]  ? __lock_acquire+0x62f/0x4c20
[  264.373356] Total swap = 0kB
[  264.376370]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  264.380578] 1965979 pages RAM
[  264.383588]  ? should_fail+0x22d/0xd01
[  264.389098] 0 pages HighMem/MovableOnly
[  264.392200]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  264.396060] 342854 pages reserved
[  264.400026]  ? __lock_acquire+0x62f/0x4c20
[  264.405116] 0 pages cma reserved
[  264.408559]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  264.412833] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  264.416121]  ? __lock_acquire+0x62f/0x4c20
[  264.416137]  ? should_fail+0x22d/0xd01
[  264.421308] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  264.427709]  ? find_held_lock+0x36/0x1c0
[  264.431923] syz-executor2 cpuset=syz2 mems_allowed=0
[  264.435837]  ? mark_held_locks+0x130/0x130
[  264.459708]  ? mark_held_locks+0x130/0x130
[  264.463997]  ? zap_class+0x640/0x640
[  264.467725]  ? zap_class+0x640/0x640
[  264.471442]  ? print_usage_bug+0xc0/0xc0
[  264.475501]  ? do_raw_spin_unlock+0xa7/0x330
[  264.479908]  ? zap_class+0x640/0x640
[  264.483624]  ? print_usage_bug+0xc0/0xc0
[  264.487695]  ? wq_watchdog_touch+0x9c/0xfe
[  264.491933]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.497475]  ? check_preemption_disabled+0x48/0x280
[  264.502529]  ? __lock_is_held+0xb5/0x140
[  264.506596]  __alloc_pages_nodemask+0xad8/0xea0
[  264.511262]  ? zap_class+0x640/0x640
[  264.514979]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  264.520006]  ? find_held_lock+0x36/0x1c0
[  264.524076]  ? ____cache_alloc_node+0x1c7/0x1e0
[  264.528744]  ? lock_downgrade+0x900/0x900
[  264.532900]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.538441]  cache_grow_begin+0xa5/0x8c0
[  264.542504]  ? do_raw_spin_unlock+0xa7/0x330
[  264.546935]  fallback_alloc+0x204/0x2e0
[  264.550915]  ____cache_alloc_node+0x1c7/0x1e0
[  264.555419]  kmem_cache_alloc_node+0xe3/0x730
[  264.559913]  ? ipv6_get_ifaddr+0x42e/0x620
[  264.564161]  __alloc_skb+0x119/0x770
[  264.567871]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  264.573154]  ? netdev_alloc_frag+0x1f0/0x1f0
[  264.577566]  ? lock_downgrade+0x900/0x900
[  264.581722]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.587267]  ? refcount_sub_and_test_checked+0x203/0x310
[  264.592719]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  264.598177]  ? addrconf_rs_timer+0x690/0x690
[  264.602595]  ndisc_alloc_skb+0x144/0x340
[  264.606666]  ndisc_send_rs+0x331/0x6e0
[  264.610563]  addrconf_rs_timer+0x314/0x690
[  264.614804]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.619047]  call_timer_fn+0x272/0x920
[  264.622938]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.627205]  ? process_timeout+0x40/0x40
[  264.631275]  ? mark_held_locks+0xc7/0x130
[  264.635424]  ? _raw_spin_unlock_irq+0x27/0x80
[  264.639919]  ? _raw_spin_unlock_irq+0x27/0x80
[  264.644428]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.648672]  ? lockdep_hardirqs_on+0x296/0x5b0
[  264.653265]  ? trace_hardirqs_on+0xbd/0x310
[  264.657583]  ? kasan_check_read+0x11/0x20
[  264.661740]  ? __run_timers+0x7da/0xc70
[  264.665714]  ? trace_hardirqs_off_caller+0x310/0x310
[  264.670822]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.675061]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.679293]  __run_timers+0x7e5/0xc70
[  264.683102]  ? timer_fixup_init+0x70/0x70
[  264.687251]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  264.692272]  ? zap_class+0x640/0x640
[  264.695997]  ? print_usage_bug+0xc0/0xc0
[  264.700074]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  264.705274]  ? find_held_lock+0x36/0x1c0
[  264.709349]  ? zap_class+0x640/0x640
[  264.713081]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.718622]  ? check_preemption_disabled+0x48/0x280
[  264.723664]  ? __lock_is_held+0xb5/0x140
[  264.727730]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.733271]  ? check_preemption_disabled+0x48/0x280
[  264.738295]  run_timer_softirq+0x52/0xb0
[  264.742354]  ? rcu_read_lock_sched_held+0x14f/0x180
[  264.747371]  __do_softirq+0x308/0xb7e
[  264.751181]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  264.756153]  ? lock_downgrade+0x900/0x900
[  264.760309]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  264.765421]  ? pvclock_read_flags+0x160/0x160
[  264.769920]  ? lapic_next_event+0x5a/0x90
[  264.774073]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.779615]  ? kvm_clock_read+0x18/0x30
[  264.783595]  ? kvm_sched_clock_read+0x9/0x20
[  264.788007]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.793544]  ? check_preemption_disabled+0x48/0x280
[  264.798568]  irq_exit+0x17f/0x1c0
[  264.802025]  smp_apic_timer_interrupt+0x1cb/0x760
[  264.806868]  ? smp_reschedule_interrupt+0x109/0x650
[  264.811891]  ? smp_call_function_single_interrupt+0x650/0x650
[  264.817778]  ? interrupt_entry+0xb5/0xc0
[  264.821840]  ? trace_hardirqs_off_caller+0xbb/0x310
[  264.826853]  ? trace_hardirqs_off_caller+0xbb/0x310
[  264.831873]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  264.836717]  ? trace_hardirqs_on_caller+0x310/0x310
[  264.841748]  ? trace_hardirqs_on_caller+0x310/0x310
[  264.846773]  ? task_prio+0x50/0x50
[  264.850314]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.855864]  ? check_preemption_disabled+0x48/0x280
[  264.860894]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  264.865758]  apic_timer_interrupt+0xf/0x20
[  264.869999]  </IRQ>
[  264.872239] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  264.877430] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  264.896325] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  264.904046] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  264.911315] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  264.918583] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  264.925851] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  264.933117] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  264.940419]  retint_kernel+0x1b/0x2d
[  264.944135] RIP: 0010:dump_stack+0x358/0x39d
[  264.948549] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  264.967448] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  264.975159] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  264.982433] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  264.989698] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  264.996963] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  265.004230] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  265.011520]  ? dump_stack+0x34f/0x39d
[  265.015329]  ? dump_stack_print_info.cold.1+0x20/0x20
[  265.020533]  ? mark_held_locks+0x130/0x130
[  265.024768]  ? mark_held_locks+0x130/0x130
[  265.029006]  dump_header+0x27b/0xf72
[  265.032738]  ? pagefault_out_of_memory+0x197/0x197
[  265.037675]  ? __lock_acquire+0x62f/0x4c20
[  265.041915]  ? print_usage_bug+0xc0/0xc0
[  265.045981]  ? zap_class+0x640/0x640
[  265.049695]  ? print_usage_bug+0xc0/0xc0
[  265.053751]  ? print_usage_bug+0xc0/0xc0
[  265.057812]  ? print_usage_bug+0xc0/0xc0
[  265.061881]  ? find_held_lock+0x36/0x1c0
[  265.065951]  ? mark_held_locks+0xc7/0x130
[  265.070107]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  265.075223]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  265.080327]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  265.084913]  ? trace_hardirqs_on+0xbd/0x310
[  265.089239]  ? kasan_check_read+0x11/0x20
[  265.093388]  ? ___ratelimit+0x3b4/0x672
[  265.097363]  ? trace_hardirqs_off_caller+0x310/0x310
[  265.102480]  ? trace_hardirqs_on+0x310/0x310
[  265.106889]  ? lock_downgrade+0x900/0x900
[  265.111047]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  265.116162]  ? ___ratelimit+0x3b9/0x672
[  265.120162]  ? idr_get_free+0xf70/0xf70
[  265.124136]  ? kasan_check_read+0x11/0x20
[  265.128287]  ? do_raw_spin_unlock+0xa7/0x330
[  265.132705]  oom_kill_process.cold.27+0x10/0x903
[  265.137461]  ? zap_class+0x640/0x640
[  265.141177]  ? _raw_spin_unlock+0x2c/0x50
[  265.145322]  ? oom_badness+0xe6/0xaa0
[  265.149120]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  265.154053]  ? kasan_check_read+0x11/0x20
[  265.158199]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.163476]  ? oom_evaluate_task+0x540/0x540
[  265.167895]  ? find_held_lock+0x36/0x1c0
[  265.171962]  ? out_of_memory+0x974/0x1430
[  265.176109]  ? lock_downgrade+0x900/0x900
[  265.180256]  ? check_preemption_disabled+0x48/0x280
[  265.185288]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  265.190214]  ? kasan_check_read+0x11/0x20
[  265.194368]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.199655]  ? rcu_softirq_qs+0x20/0x20
[  265.203674]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.209220]  ? oom_evaluate_task+0x302/0x540
[  265.213644]  out_of_memory+0xa84/0x1430
[  265.217641]  ? oom_killer_disable+0x3a0/0x3a0
[  265.222170]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  265.227118]  ? __ww_mutex_check_waiters+0x160/0x160
[  265.232176]  __alloc_pages_slowpath+0x232c/0x2de0
[  265.237059]  ? warn_alloc+0x120/0x120
[  265.240861]  ? mark_held_locks+0x130/0x130
[  265.245104]  ? find_get_entry+0xaae/0x1120
[  265.249346]  ? filemap_map_pages+0x1a20/0x1a20
[  265.253937]  ? zap_class+0x640/0x640
[  265.257664]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.263207]  ? check_preemption_disabled+0x48/0x280
[  265.268234]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.273774]  ? should_fail+0x22d/0xd01
[  265.277681]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  265.282787]  ? zap_class+0x640/0x640
[  265.286525]  ? __lock_is_held+0xb5/0x140
[  265.290595]  ? mark_held_locks+0x130/0x130
[  265.294831]  ? lock_release+0xa00/0xa00
[  265.298807]  ? perf_trace_sched_process_exec+0x860/0x860
[  265.304256]  ? xa_load+0x2ba/0x460
[  265.307804]  ? lock_downgrade+0x900/0x900
[  265.311965]  ? __might_sleep+0x95/0x190
[  265.315942]  __alloc_pages_nodemask+0xad8/0xea0
[  265.320623]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  265.325662]  ? __page_cache_alloc+0x191/0x5c0
[  265.330163]  ? xa_load+0x2e1/0x460
[  265.333706]  ? xa_clear_mark+0x40/0x40
[  265.337595]  ? zap_class+0x640/0x640
[  265.341328]  ? zap_class+0x640/0x640
[  265.345041]  ? zap_class+0x640/0x640
[  265.348753]  ? __do_page_cache_readahead+0x663/0x810
[  265.353860]  ? find_held_lock+0x36/0x1c0
[  265.357926]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  265.363470]  alloc_pages_current+0x173/0x350
[  265.367885]  __page_cache_alloc+0x38c/0x5c0
[  265.372204]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  265.377142]  ? kasan_check_read+0x11/0x20
[  265.381294]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.386575]  ? generic_perform_write+0x6a0/0x6a0
[  265.391333]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.396873]  ? check_preemption_disabled+0x48/0x280
[  265.401900]  filemap_fault+0x1595/0x25f0
[  265.405974]  ? __lock_page_or_retry+0xa00/0xa00
[  265.410662]  ? mark_held_locks+0x130/0x130
[  265.414907]  ? filemap_map_pages+0xd6b/0x1a20
[  265.419403]  ? lock_downgrade+0x900/0x900
[  265.423556]  ? check_preemption_disabled+0x48/0x280
[  265.428576]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  265.433503]  ? kasan_check_read+0x11/0x20
[  265.437663]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.442944]  ? rcu_softirq_qs+0x20/0x20
[  265.446931]  ? filemap_map_pages+0xd92/0x1a20
[  265.451442]  ? find_get_entries_tag+0x1400/0x1400
[  265.456292]  ? debug_object_destroy+0x2b0/0x2b0
[  265.460965]  ? lock_pi_update_atomic+0x150/0x150
[  265.465737]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.471291]  ? lock_acquire+0x1ed/0x520
[  265.475274]  ? ext4_filemap_fault+0x7a/0xad
[  265.479602]  ? lock_release+0xa00/0xa00
[  265.483589]  ? perf_trace_sched_process_exec+0x860/0x860
[  265.489044]  ? print_usage_bug+0xc0/0xc0
[  265.493104]  ? print_usage_bug+0xc0/0xc0
[  265.497179]  ? down_read+0x8d/0x120
[  265.500812]  ? ext4_filemap_fault+0x7a/0xad
[  265.505133]  ? __down_interruptible+0x700/0x700
[  265.509813]  ext4_filemap_fault+0x82/0xad
[  265.513973]  __do_fault+0x100/0x6b0
[  265.517603]  ? pmd_devmap_trans_unstable+0x220/0x220
[  265.522714]  ? mark_held_locks+0x130/0x130
[  265.526948]  ? mark_held_locks+0x130/0x130
[  265.531187]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  265.535951]  ? retint_kernel+0x2d/0x2d
[  265.539838]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.545382]  __handle_mm_fault+0x3ea0/0x5be0
[  265.549789]  ? perf_trace_lock+0x7a0/0x7a0
[  265.554042]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  265.558902]  ? __switch_to_asm+0x34/0x70
[  265.562971]  ? __switch_to_asm+0x34/0x70
[  265.567043]  ? zap_class+0x640/0x640
[  265.570759]  ? zap_class+0x640/0x640
[  265.574475]  ? __x64_sys_futex+0x53e/0x6a0
[  265.578712]  ? find_held_lock+0x36/0x1c0
[  265.582783]  ? handle_mm_fault+0x42a/0xc70
[  265.587027]  ? lock_downgrade+0x900/0x900
[  265.591178]  ? check_preemption_disabled+0x48/0x280
[  265.596215]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  265.601144]  ? kasan_check_read+0x11/0x20
[  265.605297]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.610571]  ? rcu_softirq_qs+0x20/0x20
[  265.614543]  ? trace_hardirqs_off_caller+0x310/0x310
[  265.619657]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.625201]  ? check_preemption_disabled+0x48/0x280
[  265.630245]  handle_mm_fault+0x54f/0xc70
[  265.634309]  ? __handle_mm_fault+0x5be0/0x5be0
[  265.638893]  ? find_vma+0x34/0x190
[  265.642438]  __do_page_fault+0x5e8/0xe60
[  265.646495]  ? trace_hardirqs_off+0xb8/0x310
[  265.650949]  do_page_fault+0xf2/0x7e0
[  265.654761]  ? vmalloc_sync_all+0x30/0x30
[  265.658908]  ? error_entry+0x70/0xd0
[  265.662628]  ? trace_hardirqs_off_caller+0xbb/0x310
[  265.667671]  ? trace_hardirqs_on_caller+0xc0/0x310
[  265.672613]  ? syscall_return_slowpath+0x5e0/0x5e0
[  265.677549]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  265.682401]  ? trace_hardirqs_on_caller+0x310/0x310
[  265.687419]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  265.692895]  ? prepare_exit_to_usermode+0x291/0x3b0
[  265.697909]  ? page_fault+0x8/0x30
[  265.701451]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  265.706296]  ? page_fault+0x8/0x30
[  265.709990]  page_fault+0x1e/0x30
[  265.713443] RIP: 0033:0x4290d7
[  265.716653] Code: Bad RIP value.
[  265.720012] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  265.725373] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  265.732653] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  265.739921] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  265.747196] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  265.754461] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  265.761760] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  265.761824] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  265.769033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  265.769042] Call Trace:
[  265.775619] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  265.784861]  <IRQ>
[  265.787431] syz-fuzzer cpuset=/ mems_allowed=0
[  265.797679]  dump_stack+0x244/0x39d
[  265.807991]  ? dump_stack_print_info.cold.1+0x20/0x20
[  265.813197]  warn_alloc.cold.116+0xb7/0x1bd
[  265.817520]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  265.822412]  ? lock_downgrade+0x900/0x900
[  265.826570]  ? trace_hardirqs_off+0xb8/0x310
[  265.830991]  ? trace_hardirqs_off+0xb8/0x310
[  265.835412]  __alloc_pages_slowpath+0x2651/0x2de0
[  265.840287]  ? warn_alloc+0x120/0x120
[  265.844092]  ? print_usage_bug+0xc0/0xc0
[  265.848162]  ? warn_alloc+0x120/0x120
[  265.851972]  ? warn_alloc+0x120/0x120
[  265.855774]  ? print_usage_bug+0xc0/0xc0
[  265.859840]  ? kvm_clock_read+0x18/0x30
[  265.863817]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  265.868838]  ? print_usage_bug+0xc0/0xc0
[  265.872900]  ? __lock_acquire+0x62f/0x4c20
[  265.877177]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.882738]  ? should_fail+0x22d/0xd01
[  265.886627]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.891920]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  265.897038]  ? __lock_acquire+0x62f/0x4c20
[  265.901275]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  265.906380]  ? __lock_acquire+0x62f/0x4c20
[  265.910611]  ? should_fail+0x22d/0xd01
[  265.914506]  ? rcu_irq_exit+0x1a2/0x390
[  265.918493]  ? mark_held_locks+0x130/0x130
[  265.922735]  ? mark_held_locks+0x130/0x130
[  265.926994]  ? mark_held_locks+0xc7/0x130
[  265.931140]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  265.936154]  ? zap_class+0x640/0x640
[  265.939872]  ? print_usage_bug+0xc0/0xc0
[  265.943940]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.949482]  ? check_preemption_disabled+0x48/0x280
[  265.954512]  ? __lock_is_held+0xb5/0x140
[  265.958580]  __alloc_pages_nodemask+0xad8/0xea0
[  265.963251]  ? zap_class+0x640/0x640
[  265.966970]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  265.971995]  ? find_held_lock+0x36/0x1c0
[  265.976064]  ? ____cache_alloc_node+0x1c7/0x1e0
[  265.980734]  ? lock_downgrade+0x900/0x900
[  265.984890]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.990433]  cache_grow_begin+0xa5/0x8c0
[  265.994493]  ? do_raw_spin_unlock+0xa7/0x330
[  265.998913]  fallback_alloc+0x204/0x2e0
[  266.002896]  ____cache_alloc_node+0x1c7/0x1e0
[  266.007395]  kmem_cache_alloc_node+0xe3/0x730
[  266.011889]  ? ipv6_get_ifaddr+0x42e/0x620
[  266.016138]  __alloc_skb+0x119/0x770
[  266.019880]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  266.025158]  ? netdev_alloc_frag+0x1f0/0x1f0
[  266.029571]  ? lock_downgrade+0x900/0x900
[  266.033730]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.039268]  ? refcount_sub_and_test_checked+0x203/0x310
[  266.044729]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  266.050178]  ? addrconf_rs_timer+0x690/0x690
[  266.054598]  ndisc_alloc_skb+0x144/0x340
[  266.058678]  ndisc_send_rs+0x331/0x6e0
[  266.062573]  addrconf_rs_timer+0x314/0x690
[  266.066814]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  266.071059]  call_timer_fn+0x272/0x920
[  266.074953]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  266.079195]  ? process_timeout+0x40/0x40
[  266.083264]  ? __run_timers+0x7da/0xc70
[  266.087238]  ? _raw_spin_unlock_irq+0x27/0x80
[  266.091732]  ? _raw_spin_unlock_irq+0x27/0x80
[  266.096224]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  266.100462]  ? lockdep_hardirqs_on+0x296/0x5b0
[  266.105049]  ? trace_hardirqs_on+0xbd/0x310
[  266.109368]  ? kasan_check_read+0x11/0x20
[  266.113517]  ? __run_timers+0x7da/0xc70
[  266.117490]  ? trace_hardirqs_off_caller+0x310/0x310
[  266.122600]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  266.126848]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  266.131081]  __run_timers+0x7e5/0xc70
[  266.134896]  ? timer_fixup_init+0x70/0x70
[  266.139048]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  266.144066]  ? zap_class+0x640/0x640
[  266.147785]  ? enqueue_hrtimer+0x1a5/0x560
[  266.152021]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  266.157217]  ? find_held_lock+0x36/0x1c0
[  266.161288]  ? zap_class+0x640/0x640
[  266.165005]  ? pvclock_read_flags+0x160/0x160
[  266.169502]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.175040]  ? check_preemption_disabled+0x48/0x280
[  266.180066]  ? __lock_is_held+0xb5/0x140
[  266.184156]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.189697]  ? check_preemption_disabled+0x48/0x280
[  266.194721]  run_timer_softirq+0x52/0xb0
[  266.198783]  ? rcu_read_lock_sched_held+0x14f/0x180
[  266.203809]  __do_softirq+0x308/0xb7e
[  266.207612]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  266.212110]  ? lock_downgrade+0x900/0x900
[  266.216262]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  266.221376]  ? pvclock_read_flags+0x160/0x160
[  266.225873]  ? lapic_next_event+0x5a/0x90
[  266.230034]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.235580]  ? kvm_clock_read+0x18/0x30
[  266.239555]  ? kvm_sched_clock_read+0x9/0x20
[  266.243993]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.249545]  ? check_preemption_disabled+0x48/0x280
[  266.254568]  irq_exit+0x17f/0x1c0
[  266.258026]  smp_apic_timer_interrupt+0x1cb/0x760
[  266.262884]  ? smp_reschedule_interrupt+0x109/0x650
[  266.267904]  ? smp_call_function_single_interrupt+0x650/0x650
[  266.273786]  ? interrupt_entry+0xb5/0xc0
[  266.277846]  ? trace_hardirqs_off_caller+0xbb/0x310
[  266.282864]  ? trace_hardirqs_off_caller+0xbb/0x310
[  266.287879]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  266.292721]  ? trace_hardirqs_on_caller+0x310/0x310
[  266.297749]  ? trace_hardirqs_on_caller+0x310/0x310
[  266.302762]  ? task_prio+0x50/0x50
[  266.306305]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.311856]  ? check_preemption_disabled+0x48/0x280
[  266.316882]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  266.321733]  apic_timer_interrupt+0xf/0x20
[  266.325961]  </IRQ>
[  266.328199] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  266.333126] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  266.352024] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  266.359729] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  266.367000] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  266.374263] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  266.381525] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  266.388803] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  266.396118]  skb_clone+0x1bb/0x500
[  266.399672]  ? skb_split+0x11e0/0x11e0
[  266.403563]  ? preempt_notifier_register+0x200/0x200
[  266.408670]  ? __switch_to_asm+0x34/0x70
[  266.412733]  ? __switch_to_asm+0x34/0x70
[  266.416792]  ? __switch_to_asm+0x40/0x70
[  266.420850]  ? __switch_to_asm+0x34/0x70
[  266.424909]  ? __switch_to_asm+0x40/0x70
[  266.428971]  ? __switch_to_asm+0x40/0x70
[  266.433027]  ? __switch_to_asm+0x34/0x70
[  266.437084]  ? __switch_to_asm+0x34/0x70
[  266.441145]  ? __switch_to_asm+0x40/0x70
[  266.445205]  ? __switch_to_asm+0x34/0x70
[  266.449274]  bpf_clone_redirect+0xb9/0x490
[  266.453522]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  266.458545]  ? __sched_text_start+0x8/0x8
[  266.462698]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  266.467278]  ? retint_kernel+0x2d/0x2d
[  266.471168]  ? trace_hardirqs_on_caller+0xc0/0x310
[  266.476108]  ? find_held_lock+0x36/0x1c0
[  266.480194]  ? lock_acquire+0x1ed/0x520
[  266.484171]  ? bpf_test_run+0x3cb/0x780
[  266.488160]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.493706]  ? check_preemption_disabled+0x48/0x280
[  266.498754]  ? kasan_check_read+0x11/0x20
[  266.502911]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  266.508195]  ? rcu_softirq_qs+0x20/0x20
[  266.512207]  ? preempt_schedule+0x4d/0x60
[  266.516359]  ? ___preempt_schedule+0x16/0x18
[  266.520781]  ? bpf_test_run+0x25d/0x780
[  266.524765]  ? netlink_diag_dump+0x2a0/0x2a0
[  266.529219]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  266.534786]  ? bpf_test_init.isra.10+0x70/0x100
[  266.539463]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  266.544236]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  266.549080]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  266.554626]  ? fput+0x130/0x1a0
[  266.557922]  ? __bpf_prog_get+0x9b/0x290
[  266.561985]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  266.566830]  ? bpf_prog_test_run+0x130/0x1a0
[  266.571245]  ? __x64_sys_bpf+0x3db/0x520
[  266.575309]  ? bpf_prog_get+0x20/0x20
[  266.579148]  ? do_syscall_64+0x1b9/0x820
[  266.583210]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  266.588573]  ? syscall_return_slowpath+0x5e0/0x5e0
[  266.593499]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  266.598342]  ? trace_hardirqs_on_caller+0x310/0x310
[  266.603357]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  266.608378]  ? prepare_exit_to_usermode+0x291/0x3b0
[  266.613399]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  266.618249]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  266.624114] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  266.624119] warn_alloc_show_mem: 1 callbacks suppressed
[  266.624127] Mem-Info:
[  266.631145] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  266.636512] active_anon:57128 inactive_anon:971 isolated_anon:0
[  266.636512]  active_file:40 inactive_file:20 isolated_file:0
[  266.636512]  unevictable:0 dirty:11 writeback:0 unstable:0
[  266.636512]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  266.636512]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  266.636512]  free:13615 free_pcp:64 free_cma:0
[  266.638884] Call Trace:
[  266.648264] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  266.681199]  <IRQ>
[  266.683787] 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
[  266.711724]  dump_stack+0x244/0x39d
[  266.713843] lowmem_reserve[]: 0 2818 6321 6321
[  266.739965]  ? dump_stack_print_info.cold.1+0x20/0x20
[  266.743555] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  266.748138]  warn_alloc.cold.116+0xb7/0x1bd
[  266.753288] lowmem_reserve[]: 0 0 3503 3503
[  266.780810]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  266.785099] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  266.789417]  ? lock_downgrade+0x900/0x900
[  266.794230] lowmem_reserve[]: 0 0 0 0
[  266.823372]  ? trace_hardirqs_off+0xb8/0x310
[  266.827487] 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
[  266.831280]  ? trace_hardirqs_off+0xb8/0x310
[  266.835671] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  266.849192]  __alloc_pages_slowpath+0x2651/0x2de0
[  266.853573] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  266.868677]  ? warn_alloc+0x120/0x120
[  266.873482] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  266.888988]  ? print_usage_bug+0xc0/0xc0
[  266.892771] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  266.901590]  ? warn_alloc+0x120/0x120
[  266.905630] 5171 total pagecache pages
[  266.914200]  ? warn_alloc+0x120/0x120
[  266.917981] 0 pages in swap cache
[  266.921859]  ? print_usage_bug+0xc0/0xc0
[  266.925647] Swap cache stats: add 0, delete 0, find 0/0
[  266.929092]  ? kvm_clock_read+0x18/0x30
[  266.933130] Free swap  = 0kB
[  266.938498]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  266.942439] Total swap = 0kB
[  266.945468]  ? print_usage_bug+0xc0/0xc0
[  266.950455] 1965979 pages RAM
[  266.953472]  ? __lock_acquire+0x62f/0x4c20
[  266.957518] 0 pages HighMem/MovableOnly
[  266.957527] 342854 pages reserved
[  266.960629]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  266.964841] 0 pages cma reserved
[  266.968806]  ? should_fail+0x22d/0xd01
[  266.972314] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  266.977778]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  266.977796]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  266.981264] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  266.985044]  ? __lock_acquire+0x62f/0x4c20
[  266.991511] syz-executor2 cpuset=syz2 mems_allowed=0
[  266.996781]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  267.026753]  ? __lock_acquire+0x62f/0x4c20
[  267.030986]  ? should_fail+0x22d/0xd01
[  267.034869]  ? rcu_irq_exit+0x1a2/0x390
[  267.038852]  ? mark_held_locks+0x130/0x130
[  267.043089]  ? mark_held_locks+0x130/0x130
[  267.047359]  ? mark_held_locks+0xc7/0x130
[  267.051505]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  267.056519]  ? zap_class+0x640/0x640
[  267.060231]  ? print_usage_bug+0xc0/0xc0
[  267.064322]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.069878]  ? check_preemption_disabled+0x48/0x280
[  267.074903]  ? __lock_is_held+0xb5/0x140
[  267.078974]  __alloc_pages_nodemask+0xad8/0xea0
[  267.083648]  ? zap_class+0x640/0x640
[  267.087386]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  267.092410]  ? find_held_lock+0x36/0x1c0
[  267.096493]  ? ____cache_alloc_node+0x1c7/0x1e0
[  267.101168]  ? lock_downgrade+0x900/0x900
[  267.105323]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.110882]  cache_grow_begin+0xa5/0x8c0
[  267.114946]  ? do_raw_spin_unlock+0xa7/0x330
[  267.119362]  fallback_alloc+0x204/0x2e0
[  267.123344]  ____cache_alloc_node+0x1c7/0x1e0
[  267.127850]  kmem_cache_alloc_node+0xe3/0x730
[  267.132346]  ? ipv6_get_ifaddr+0x42e/0x620
[  267.136586]  __alloc_skb+0x119/0x770
[  267.140296]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.145574]  ? netdev_alloc_frag+0x1f0/0x1f0
[  267.149980]  ? lock_downgrade+0x900/0x900
[  267.154137]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.159677]  ? refcount_sub_and_test_checked+0x203/0x310
[  267.165144]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  267.170640]  ? addrconf_rs_timer+0x690/0x690
[  267.175062]  ndisc_alloc_skb+0x144/0x340
[  267.179144]  ndisc_send_rs+0x331/0x6e0
[  267.183040]  addrconf_rs_timer+0x314/0x690
[  267.187285]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  267.191525]  call_timer_fn+0x272/0x920
[  267.195408]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  267.199648]  ? process_timeout+0x40/0x40
[  267.203724]  ? mark_held_locks+0xc7/0x130
[  267.207876]  ? _raw_spin_unlock_irq+0x27/0x80
[  267.212367]  ? _raw_spin_unlock_irq+0x27/0x80
[  267.216859]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  267.221092]  ? lockdep_hardirqs_on+0x296/0x5b0
[  267.225680]  ? trace_hardirqs_on+0xbd/0x310
[  267.230000]  ? kasan_check_read+0x11/0x20
[  267.234149]  ? __run_timers+0x7da/0xc70
[  267.238131]  ? trace_hardirqs_off_caller+0x310/0x310
[  267.243252]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  267.247489]  __run_timers+0x7e5/0xc70
[  267.251298]  ? timer_fixup_init+0x70/0x70
[  267.255450]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  267.260470]  ? zap_class+0x640/0x640
[  267.264190]  ? print_usage_bug+0xc0/0xc0
[  267.268250]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  267.273447]  ? find_held_lock+0x36/0x1c0
[  267.277510]  ? zap_class+0x640/0x640
[  267.281231]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.286772]  ? check_preemption_disabled+0x48/0x280
[  267.291802]  ? __lock_is_held+0xb5/0x140
[  267.295866]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.301406]  ? check_preemption_disabled+0x48/0x280
[  267.306442]  run_timer_softirq+0x52/0xb0
[  267.310503]  ? rcu_read_lock_sched_held+0x14f/0x180
[  267.315533]  __do_softirq+0x308/0xb7e
[  267.319338]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  267.323836]  ? lock_downgrade+0x900/0x900
[  267.327986]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  267.333109]  ? pvclock_read_flags+0x160/0x160
[  267.337607]  ? lapic_next_event+0x5a/0x90
[  267.341785]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.347329]  ? kvm_clock_read+0x18/0x30
[  267.351302]  ? kvm_sched_clock_read+0x9/0x20
[  267.355747]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.361287]  ? check_preemption_disabled+0x48/0x280
[  267.366314]  irq_exit+0x17f/0x1c0
[  267.369773]  smp_apic_timer_interrupt+0x1cb/0x760
[  267.374617]  ? smp_reschedule_interrupt+0x109/0x650
[  267.379665]  ? smp_call_function_single_interrupt+0x650/0x650
[  267.385553]  ? interrupt_entry+0xb5/0xc0
[  267.389643]  ? trace_hardirqs_off_caller+0xbb/0x310
[  267.394666]  ? trace_hardirqs_off_caller+0xbb/0x310
[  267.399683]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  267.404528]  ? trace_hardirqs_on_caller+0x310/0x310
[  267.409543]  ? trace_hardirqs_on_caller+0x310/0x310
[  267.414559]  ? task_prio+0x50/0x50
[  267.418116]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.423668]  ? check_preemption_disabled+0x48/0x280
[  267.428703]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  267.433567]  apic_timer_interrupt+0xf/0x20
[  267.437802]  </IRQ>
[  267.440061] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  267.445274] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  267.464443] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  267.472147] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  267.479434] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  267.486700] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  267.493965] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  267.501234] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  267.508567]  retint_kernel+0x1b/0x2d
[  267.512280] RIP: 0010:dump_stack+0x358/0x39d
[  267.516686] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  267.535582] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  267.543289] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  267.550553] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  267.557822] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  267.565104] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  267.572382] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  267.579687]  ? dump_stack+0x34f/0x39d
[  267.583502]  ? dump_stack_print_info.cold.1+0x20/0x20
[  267.588711]  ? mark_held_locks+0x130/0x130
[  267.592944]  ? mark_held_locks+0x130/0x130
[  267.597192]  dump_header+0x27b/0xf72
[  267.600921]  ? pagefault_out_of_memory+0x197/0x197
[  267.605865]  ? __lock_acquire+0x62f/0x4c20
[  267.610122]  ? print_usage_bug+0xc0/0xc0
[  267.614194]  ? zap_class+0x640/0x640
[  267.617908]  ? print_usage_bug+0xc0/0xc0
[  267.621971]  ? print_usage_bug+0xc0/0xc0
[  267.626032]  ? print_usage_bug+0xc0/0xc0
[  267.630100]  ? find_held_lock+0x36/0x1c0
[  267.634203]  ? mark_held_locks+0xc7/0x130
[  267.638355]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  267.643456]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  267.648560]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  267.653163]  ? trace_hardirqs_on+0xbd/0x310
[  267.657483]  ? kasan_check_read+0x11/0x20
[  267.661631]  ? ___ratelimit+0x3b4/0x672
[  267.665613]  ? trace_hardirqs_off_caller+0x310/0x310
[  267.670727]  ? trace_hardirqs_on+0x310/0x310
[  267.675137]  ? lock_downgrade+0x900/0x900
[  267.679311]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  267.684418]  ? ___ratelimit+0x3b9/0x672
[  267.688401]  ? idr_get_free+0xf70/0xf70
[  267.692390]  ? kasan_check_read+0x11/0x20
[  267.696535]  ? do_raw_spin_unlock+0xa7/0x330
[  267.700953]  oom_kill_process.cold.27+0x10/0x903
[  267.705709]  ? zap_class+0x640/0x640
[  267.709423]  ? _raw_spin_unlock+0x2c/0x50
[  267.713586]  ? oom_badness+0xe6/0xaa0
[  267.717385]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  267.722315]  ? kasan_check_read+0x11/0x20
[  267.726462]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.731763]  ? oom_evaluate_task+0x540/0x540
[  267.736178]  ? find_held_lock+0x36/0x1c0
[  267.740268]  ? out_of_memory+0x974/0x1430
[  267.744430]  ? lock_downgrade+0x900/0x900
[  267.748584]  ? check_preemption_disabled+0x48/0x280
[  267.753602]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  267.758537]  ? kasan_check_read+0x11/0x20
[  267.762718]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.768025]  ? rcu_softirq_qs+0x20/0x20
[  267.772003]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  267.777540]  ? oom_evaluate_task+0x302/0x540
[  267.781952]  out_of_memory+0xa84/0x1430
[  267.785939]  ? oom_killer_disable+0x3a0/0x3a0
[  267.790433]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  267.795394]  ? __ww_mutex_check_waiters+0x160/0x160
[  267.800424]  __alloc_pages_slowpath+0x232c/0x2de0
[  267.805296]  ? warn_alloc+0x120/0x120
[  267.809110]  ? mark_held_locks+0x130/0x130
[  267.813350]  ? find_get_entry+0xaae/0x1120
[  267.817606]  ? filemap_map_pages+0x1a20/0x1a20
[  267.822216]  ? zap_class+0x640/0x640
[  267.825952]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.831505]  ? check_preemption_disabled+0x48/0x280
[  267.836536]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  267.842085]  ? should_fail+0x22d/0xd01
[  267.845976]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  267.851081]  ? zap_class+0x640/0x640
[  267.854819]  ? __lock_is_held+0xb5/0x140
[  267.858894]  ? mark_held_locks+0x130/0x130
[  267.863137]  ? lock_release+0xa00/0xa00
[  267.867114]  ? perf_trace_sched_process_exec+0x860/0x860
[  267.872577]  ? xa_load+0x2ba/0x460
[  267.876117]  ? lock_downgrade+0x900/0x900
[  267.880268]  ? __might_sleep+0x95/0x190
[  267.884247]  __alloc_pages_nodemask+0xad8/0xea0
[  267.888924]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  267.893953]  ? __page_cache_alloc+0x191/0x5c0
[  267.898474]  ? xa_load+0x2e1/0x460
[  267.902012]  ? xa_clear_mark+0x40/0x40
[  267.905905]  ? zap_class+0x640/0x640
[  267.909625]  ? zap_class+0x640/0x640
[  267.913349]  ? zap_class+0x640/0x640
[  267.917084]  ? __do_page_cache_readahead+0x663/0x810
[  267.922194]  ? find_held_lock+0x36/0x1c0
[  267.926260]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  267.931803]  alloc_pages_current+0x173/0x350
[  267.936237]  __page_cache_alloc+0x38c/0x5c0
[  267.940556]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  267.945489]  ? kasan_check_read+0x11/0x20
[  267.949646]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.954931]  ? generic_perform_write+0x6a0/0x6a0
[  267.959705]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  267.965244]  ? check_preemption_disabled+0x48/0x280
[  267.970265]  filemap_fault+0x1595/0x25f0
[  267.974336]  ? __lock_page_or_retry+0xa00/0xa00
[  267.979009]  ? mark_held_locks+0x130/0x130
[  267.983256]  ? filemap_map_pages+0xd6b/0x1a20
[  267.987794]  ? lock_downgrade+0x900/0x900
[  267.991940]  ? check_preemption_disabled+0x48/0x280
[  267.996963]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  268.001894]  ? kasan_check_read+0x11/0x20
[  268.006053]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  268.011355]  ? rcu_softirq_qs+0x20/0x20
[  268.015407]  ? filemap_map_pages+0xd92/0x1a20
[  268.019930]  ? find_get_entries_tag+0x1400/0x1400
[  268.024781]  ? debug_object_destroy+0x2b0/0x2b0
[  268.029468]  ? lock_pi_update_atomic+0x150/0x150
[  268.034225]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.039787]  ? lock_acquire+0x1ed/0x520
[  268.043767]  ? ext4_filemap_fault+0x7a/0xad
[  268.048097]  ? lock_release+0xa00/0xa00
[  268.052068]  ? perf_trace_sched_process_exec+0x860/0x860
[  268.057522]  ? print_usage_bug+0xc0/0xc0
[  268.061586]  ? print_usage_bug+0xc0/0xc0
[  268.065677]  ? down_read+0x8d/0x120
[  268.069300]  ? ext4_filemap_fault+0x7a/0xad
[  268.073623]  ? __down_interruptible+0x700/0x700
[  268.078310]  ext4_filemap_fault+0x82/0xad
[  268.082459]  __do_fault+0x100/0x6b0
[  268.086090]  ? pmd_devmap_trans_unstable+0x220/0x220
[  268.091201]  ? mark_held_locks+0x130/0x130
[  268.095439]  ? mark_held_locks+0x130/0x130
[  268.099676]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  268.104438]  ? retint_kernel+0x2d/0x2d
[  268.108369]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  268.113915]  __handle_mm_fault+0x3ea0/0x5be0
[  268.118323]  ? perf_trace_lock+0x7a0/0x7a0
[  268.122568]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  268.127437]  ? __switch_to_asm+0x34/0x70
[  268.131498]  ? __switch_to_asm+0x34/0x70
[  268.135604]  ? zap_class+0x640/0x640
[  268.139323]  ? zap_class+0x640/0x640
[  268.143049]  ? __x64_sys_futex+0x53e/0x6a0
[  268.147305]  ? find_held_lock+0x36/0x1c0
[  268.151380]  ? handle_mm_fault+0x42a/0xc70
[  268.155616]  ? lock_downgrade+0x900/0x900
[  268.159786]  ? check_preemption_disabled+0x48/0x280
[  268.164813]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  268.169741]  ? kasan_check_read+0x11/0x20
[  268.173887]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  268.179171]  ? rcu_softirq_qs+0x20/0x20
[  268.183149]  ? trace_hardirqs_off_caller+0x310/0x310
[  268.188257]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  268.193797]  ? check_preemption_disabled+0x48/0x280
[  268.198838]  handle_mm_fault+0x54f/0xc70
[  268.202912]  ? __handle_mm_fault+0x5be0/0x5be0
[  268.207517]  ? find_vma+0x34/0x190
[  268.211065]  __do_page_fault+0x5e8/0xe60
[  268.215129]  ? trace_hardirqs_off+0xb8/0x310
[  268.219553]  do_page_fault+0xf2/0x7e0
[  268.223355]  ? vmalloc_sync_all+0x30/0x30
[  268.227532]  ? error_entry+0x70/0xd0
[  268.231250]  ? trace_hardirqs_off_caller+0xbb/0x310
[  268.236262]  ? trace_hardirqs_on_caller+0xc0/0x310
[  268.241229]  ? syscall_return_slowpath+0x5e0/0x5e0
[  268.246167]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  268.251010]  ? trace_hardirqs_on_caller+0x310/0x310
[  268.256031]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  268.261490]  ? prepare_exit_to_usermode+0x291/0x3b0
[  268.266509]  ? page_fault+0x8/0x30
[  268.270051]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  268.274897]  ? page_fault+0x8/0x30
[  268.278454]  page_fault+0x1e/0x30
[  268.281907] RIP: 0033:0x4290d7
[  268.285110] Code: Bad RIP value.
[  268.288479] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  268.293843] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  268.301111] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  268.308392] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  268.315661] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  268.322930] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  268.330226] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  268.330302] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  268.337514] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  268.337523] Call Trace:
[  268.344116] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  268.353376]  <IRQ>
[  268.355959] syz-fuzzer cpuset=/ mems_allowed=0
[  268.366194]  dump_stack+0x244/0x39d
[  268.376544]  ? dump_stack_print_info.cold.1+0x20/0x20
[  268.381750]  warn_alloc.cold.116+0xb7/0x1bd
[  268.386075]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  268.390922]  ? lock_downgrade+0x900/0x900
[  268.395076]  ? trace_hardirqs_off+0xb8/0x310
[  268.399493]  ? trace_hardirqs_off+0xb8/0x310
[  268.403911]  __alloc_pages_slowpath+0x2651/0x2de0
[  268.408783]  ? warn_alloc+0x120/0x120
[  268.412586]  ? print_usage_bug+0xc0/0xc0
[  268.416673]  ? warn_alloc+0x120/0x120
[  268.420479]  ? warn_alloc+0x120/0x120
[  268.424279]  ? print_usage_bug+0xc0/0xc0
[  268.428343]  ? kvm_clock_read+0x18/0x30
[  268.432336]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  268.437380]  ? print_usage_bug+0xc0/0xc0
[  268.441456]  ? __lock_acquire+0x62f/0x4c20
[  268.445717]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  268.451256]  ? should_fail+0x22d/0xd01
[  268.455155]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  268.460436]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  268.465539]  ? __lock_acquire+0x62f/0x4c20
[  268.469781]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  268.474882]  ? __lock_acquire+0x62f/0x4c20
[  268.479115]  ? should_fail+0x22d/0xd01
[  268.483000]  ? rcu_irq_exit+0x1a2/0x390
[  268.486985]  ? mark_held_locks+0x130/0x130
[  268.491226]  ? mark_held_locks+0x130/0x130
[  268.495465]  ? mark_held_locks+0xc7/0x130
[  268.499612]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  268.504640]  ? zap_class+0x640/0x640
[  268.508359]  ? print_usage_bug+0xc0/0xc0
[  268.512441]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.517981]  ? check_preemption_disabled+0x48/0x280
[  268.523006]  ? __lock_is_held+0xb5/0x140
[  268.527076]  __alloc_pages_nodemask+0xad8/0xea0
[  268.531766]  ? zap_class+0x640/0x640
[  268.535485]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  268.540516]  ? find_held_lock+0x36/0x1c0
[  268.544601]  ? ____cache_alloc_node+0x1c7/0x1e0
[  268.549281]  ? lock_downgrade+0x900/0x900
[  268.553436]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.558979]  cache_grow_begin+0xa5/0x8c0
[  268.563040]  ? do_raw_spin_unlock+0xa7/0x330
[  268.567463]  fallback_alloc+0x204/0x2e0
[  268.571446]  ____cache_alloc_node+0x1c7/0x1e0
[  268.575948]  kmem_cache_alloc_node+0xe3/0x730
[  268.580446]  ? ipv6_get_ifaddr+0x42e/0x620
[  268.584708]  __alloc_skb+0x119/0x770
[  268.588424]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  268.593705]  ? netdev_alloc_frag+0x1f0/0x1f0
[  268.598116]  ? lock_downgrade+0x900/0x900
[  268.602270]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.607807]  ? refcount_sub_and_test_checked+0x203/0x310
[  268.613265]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  268.618716]  ? addrconf_rs_timer+0x690/0x690
[  268.623594]  ndisc_alloc_skb+0x144/0x340
[  268.627674]  ndisc_send_rs+0x331/0x6e0
[  268.631584]  addrconf_rs_timer+0x314/0x690
[  268.635827]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.640080]  call_timer_fn+0x272/0x920
[  268.643978]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.648215]  ? process_timeout+0x40/0x40
[  268.652302]  ? __run_timers+0x7da/0xc70
[  268.656281]  ? _raw_spin_unlock_irq+0x27/0x80
[  268.660787]  ? _raw_spin_unlock_irq+0x27/0x80
[  268.665279]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.669519]  ? lockdep_hardirqs_on+0x296/0x5b0
[  268.674107]  ? trace_hardirqs_on+0xbd/0x310
[  268.678427]  ? kasan_check_read+0x11/0x20
[  268.682574]  ? __run_timers+0x7da/0xc70
[  268.686551]  ? trace_hardirqs_off_caller+0x310/0x310
[  268.691703]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.695951]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.700229]  __run_timers+0x7e5/0xc70
[  268.704058]  ? timer_fixup_init+0x70/0x70
[  268.708222]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  268.713244]  ? zap_class+0x640/0x640
[  268.716974]  ? enqueue_hrtimer+0x1a5/0x560
[  268.721215]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  268.726427]  ? find_held_lock+0x36/0x1c0
[  268.730506]  ? zap_class+0x640/0x640
[  268.734230]  ? pvclock_read_flags+0x160/0x160
[  268.738743]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.744280]  ? check_preemption_disabled+0x48/0x280
[  268.749308]  ? __lock_is_held+0xb5/0x140
[  268.753521]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.759071]  ? check_preemption_disabled+0x48/0x280
[  268.764090]  run_timer_softirq+0x52/0xb0
[  268.768152]  ? rcu_read_lock_sched_held+0x14f/0x180
[  268.773177]  __do_softirq+0x308/0xb7e
[  268.776986]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  268.781483]  ? lock_downgrade+0x900/0x900
[  268.785664]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  268.790842]  ? pvclock_read_flags+0x160/0x160
[  268.795344]  ? lapic_next_event+0x5a/0x90
[  268.799494]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.805074]  ? kvm_clock_read+0x18/0x30
[  268.809047]  ? kvm_sched_clock_read+0x9/0x20
[  268.813455]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.818991]  ? check_preemption_disabled+0x48/0x280
[  268.824017]  irq_exit+0x17f/0x1c0
[  268.827475]  smp_apic_timer_interrupt+0x1cb/0x760
[  268.832316]  ? smp_reschedule_interrupt+0x109/0x650
[  268.837351]  ? smp_call_function_single_interrupt+0x650/0x650
[  268.843236]  ? interrupt_entry+0xb5/0xc0
[  268.847298]  ? trace_hardirqs_off_caller+0xbb/0x310
[  268.852312]  ? trace_hardirqs_off_caller+0xbb/0x310
[  268.857346]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  268.862204]  ? trace_hardirqs_on_caller+0x310/0x310
[  268.867236]  ? trace_hardirqs_on_caller+0x310/0x310
[  268.872280]  ? task_prio+0x50/0x50
[  268.875829]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.881367]  ? check_preemption_disabled+0x48/0x280
[  268.886396]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  268.891273]  apic_timer_interrupt+0xf/0x20
[  268.895504]  </IRQ>
[  268.897759] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  268.902714] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  268.921626] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  268.929373] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  268.936668] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  268.943971] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  268.951257] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  268.958592] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  268.965924]  skb_clone+0x1bb/0x500
[  268.969492]  ? skb_split+0x11e0/0x11e0
[  268.973394]  ? preempt_notifier_register+0x200/0x200
[  268.978516]  ? __switch_to_asm+0x34/0x70
[  268.982588]  ? __switch_to_asm+0x34/0x70
[  268.986664]  ? __switch_to_asm+0x40/0x70
[  268.990743]  ? __switch_to_asm+0x34/0x70
[  268.994820]  ? __switch_to_asm+0x40/0x70
[  268.998879]  ? __switch_to_asm+0x40/0x70
[  269.002936]  ? __switch_to_asm+0x34/0x70
[  269.007012]  ? __switch_to_asm+0x34/0x70
[  269.011071]  ? __switch_to_asm+0x40/0x70
[  269.015148]  ? __switch_to_asm+0x34/0x70
[  269.019239]  bpf_clone_redirect+0xb9/0x490
[  269.023510]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  269.028529]  ? __sched_text_start+0x8/0x8
[  269.032701]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  269.037285]  ? retint_kernel+0x2d/0x2d
[  269.041172]  ? trace_hardirqs_on_caller+0xc0/0x310
[  269.046111]  ? find_held_lock+0x36/0x1c0
[  269.050185]  ? lock_acquire+0x1ed/0x520
[  269.054167]  ? bpf_test_run+0x3cb/0x780
[  269.058147]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.063689]  ? check_preemption_disabled+0x48/0x280
[  269.068721]  ? kasan_check_read+0x11/0x20
[  269.072871]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  269.078148]  ? rcu_softirq_qs+0x20/0x20
[  269.082129]  ? preempt_schedule+0x4d/0x60
[  269.086279]  ? ___preempt_schedule+0x16/0x18
[  269.090701]  ? bpf_test_run+0x25d/0x780
[  269.094706]  ? netlink_diag_dump+0x2a0/0x2a0
[  269.099122]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  269.104671]  ? bpf_test_init.isra.10+0x70/0x100
[  269.109356]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  269.114125]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  269.118980]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  269.124548]  ? fput+0x130/0x1a0
[  269.127831]  ? __bpf_prog_get+0x9b/0x290
[  269.131896]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  269.136741]  ? bpf_prog_test_run+0x130/0x1a0
[  269.141167]  ? __x64_sys_bpf+0x3db/0x520
[  269.145228]  ? bpf_prog_get+0x20/0x20
[  269.149056]  ? do_syscall_64+0x1b9/0x820
[  269.153117]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  269.158500]  ? syscall_return_slowpath+0x5e0/0x5e0
[  269.163446]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  269.168294]  ? trace_hardirqs_on_caller+0x310/0x310
[  269.173310]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  269.178329]  ? prepare_exit_to_usermode+0x291/0x3b0
[  269.183354]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  269.188227]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  269.193617] warn_alloc_show_mem: 1 callbacks suppressed
[  269.193629] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  269.193631] Mem-Info:
[  269.193677] active_anon:57128 inactive_anon:971 isolated_anon:0
[  269.193677]  active_file:40 inactive_file:20 isolated_file:0
[  269.193677]  unevictable:0 dirty:11 writeback:0 unstable:0
[  269.193677]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  269.193677]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  269.193677]  free:13615 free_pcp:64 free_cma:0
[  269.199009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  269.206023] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  269.208418] Call Trace:
[  269.241372] 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
[  269.250735]  <IRQ>
[  269.278668] lowmem_reserve[]: 0 2818 6321 6321
[  269.281268]  dump_stack+0x244/0x39d
[  269.307360] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  269.309523]  ? dump_stack_print_info.cold.1+0x20/0x20
[  269.314115] lowmem_reserve[]: 0 0 3503 3503
[  269.317762]  warn_alloc.cold.116+0xb7/0x1bd
[  269.345227] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  269.350410]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  269.354703] lowmem_reserve[]: 0 0 0 0
[  269.359035]  ? lock_downgrade+0x900/0x900
[  269.388164] 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
[  269.393022]  ? trace_hardirqs_off+0xb8/0x310
[  269.396791] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  269.400934]  ? trace_hardirqs_off+0xb8/0x310
[  269.414432] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  269.418843]  __alloc_pages_slowpath+0x2651/0x2de0
[  269.433903] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  269.438329]  ? warn_alloc+0x120/0x120
[  269.453806] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  269.458644]  ? print_usage_bug+0xc0/0xc0
[  269.467460] 5171 total pagecache pages
[  269.471266]  ? warn_alloc+0x120/0x120
[  269.479826] 0 pages in swap cache
[  269.483874]  ? warn_alloc+0x120/0x120
[  269.487738] Swap cache stats: add 0, delete 0, find 0/0
[  269.491526]  ? print_usage_bug+0xc0/0xc0
[  269.494968] Free swap  = 0kB
[  269.498772]  ? kvm_clock_read+0x18/0x30
[  269.504108] Total swap = 0kB
[  269.508173]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  269.511163] 1965979 pages RAM
[  269.511171] 0 pages HighMem/MovableOnly
[  269.515140]  ? print_usage_bug+0xc0/0xc0
[  269.518130] 342854 pages reserved
[  269.523177]  ? __lock_acquire+0x62f/0x4c20
[  269.526254] 0 pages cma reserved
[  269.530232]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  269.534347] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  269.537726]  ? should_fail+0x22d/0xd01
[  269.542027] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  269.545293]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  269.550809] syz-executor2 cpuset=syz2 mems_allowed=0
[  269.557294]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  269.587136]  ? __lock_acquire+0x62f/0x4c20
[  269.591379]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  269.596495]  ? __lock_acquire+0x62f/0x4c20
[  269.600731]  ? should_fail+0x22d/0xd01
[  269.604613]  ? rcu_irq_exit+0x1a2/0x390
[  269.608641]  ? mark_held_locks+0x130/0x130
[  269.612898]  ? mark_held_locks+0x130/0x130
[  269.617139]  ? mark_held_locks+0xc7/0x130
[  269.621295]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  269.626315]  ? zap_class+0x640/0x640
[  269.630044]  ? print_usage_bug+0xc0/0xc0
[  269.634138]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.639711]  ? check_preemption_disabled+0x48/0x280
[  269.644739]  ? __lock_is_held+0xb5/0x140
[  269.648809]  __alloc_pages_nodemask+0xad8/0xea0
[  269.653477]  ? zap_class+0x640/0x640
[  269.657213]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  269.662241]  ? find_held_lock+0x36/0x1c0
[  269.666312]  ? ____cache_alloc_node+0x1c7/0x1e0
[  269.670990]  ? lock_downgrade+0x900/0x900
[  269.675147]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.680747]  cache_grow_begin+0xa5/0x8c0
[  269.684827]  ? do_raw_spin_unlock+0xa7/0x330
[  269.689241]  fallback_alloc+0x204/0x2e0
[  269.693251]  ____cache_alloc_node+0x1c7/0x1e0
[  269.697756]  kmem_cache_alloc_node+0xe3/0x730
[  269.702257]  ? ipv6_get_ifaddr+0x42e/0x620
[  269.706508]  __alloc_skb+0x119/0x770
[  269.710427]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  269.715711]  ? netdev_alloc_frag+0x1f0/0x1f0
[  269.720134]  ? lock_downgrade+0x900/0x900
[  269.724323]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.729865]  ? refcount_sub_and_test_checked+0x203/0x310
[  269.735332]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  269.740790]  ? addrconf_rs_timer+0x690/0x690
[  269.745213]  ndisc_alloc_skb+0x144/0x340
[  269.749284]  ndisc_send_rs+0x331/0x6e0
[  269.753191]  addrconf_rs_timer+0x314/0x690
[  269.757431]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  269.761684]  call_timer_fn+0x272/0x920
[  269.765578]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  269.769833]  ? process_timeout+0x40/0x40
[  269.773909]  ? mark_held_locks+0xc7/0x130
[  269.778063]  ? _raw_spin_unlock_irq+0x27/0x80
[  269.782558]  ? _raw_spin_unlock_irq+0x27/0x80
[  269.787061]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  269.791332]  ? lockdep_hardirqs_on+0x296/0x5b0
[  269.795916]  ? trace_hardirqs_on+0xbd/0x310
[  269.800266]  ? kasan_check_read+0x11/0x20
[  269.804413]  ? __run_timers+0x7da/0xc70
[  269.808386]  ? trace_hardirqs_off_caller+0x310/0x310
[  269.813497]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  269.817739]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  269.821980]  __run_timers+0x7e5/0xc70
[  269.825791]  ? timer_fixup_init+0x70/0x70
[  269.829945]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  269.834961]  ? zap_class+0x640/0x640
[  269.838699]  ? print_usage_bug+0xc0/0xc0
[  269.842763]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  269.847964]  ? find_held_lock+0x36/0x1c0
[  269.852032]  ? zap_class+0x640/0x640
[  269.855754]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.861341]  ? check_preemption_disabled+0x48/0x280
[  269.866372]  ? __lock_is_held+0xb5/0x140
[  269.870434]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.875976]  ? check_preemption_disabled+0x48/0x280
[  269.881014]  run_timer_softirq+0x52/0xb0
[  269.885094]  ? rcu_read_lock_sched_held+0x14f/0x180
[  269.890120]  __do_softirq+0x308/0xb7e
[  269.893934]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  269.898432]  ? lock_downgrade+0x900/0x900
[  269.902600]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  269.907749]  ? pvclock_read_flags+0x160/0x160
[  269.912251]  ? lapic_next_event+0x5a/0x90
[  269.916402]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.921947]  ? kvm_clock_read+0x18/0x30
[  269.925928]  ? kvm_sched_clock_read+0x9/0x20
[  269.930338]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.935877]  ? check_preemption_disabled+0x48/0x280
[  269.940907]  irq_exit+0x17f/0x1c0
[  269.944367]  smp_apic_timer_interrupt+0x1cb/0x760
[  269.949209]  ? smp_reschedule_interrupt+0x109/0x650
[  269.954235]  ? smp_call_function_single_interrupt+0x650/0x650
[  269.960118]  ? interrupt_entry+0xb5/0xc0
[  269.964183]  ? trace_hardirqs_off_caller+0xbb/0x310
[  269.969224]  ? trace_hardirqs_off_caller+0xbb/0x310
[  269.974244]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  269.979110]  ? trace_hardirqs_on_caller+0x310/0x310
[  269.984179]  ? trace_hardirqs_on_caller+0x310/0x310
[  269.989198]  ? task_prio+0x50/0x50
[  269.992749]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.998299]  ? check_preemption_disabled+0x48/0x280
[  270.003344]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  270.008213]  apic_timer_interrupt+0xf/0x20
[  270.012445]  </IRQ>
[  270.014689] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  270.019917] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  270.038825] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  270.046539] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  270.053810] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  270.061100] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  270.068386] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  270.075670] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  270.082994]  retint_kernel+0x1b/0x2d
[  270.086728] RIP: 0010:dump_stack+0x358/0x39d
[  270.091152] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  270.110088] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  270.117814] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  270.125098] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  270.132385] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  270.139699] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  270.146989] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  270.154314]  ? dump_stack+0x34f/0x39d
[  270.158172]  ? dump_stack_print_info.cold.1+0x20/0x20
[  270.163402]  ? mark_held_locks+0x130/0x130
[  270.167668]  ? mark_held_locks+0x130/0x130
[  270.171938]  dump_header+0x27b/0xf72
[  270.175697]  ? pagefault_out_of_memory+0x197/0x197
[  270.180658]  ? __lock_acquire+0x62f/0x4c20
[  270.184913]  ? print_usage_bug+0xc0/0xc0
[  270.188988]  ? zap_class+0x640/0x640
[  270.192713]  ? print_usage_bug+0xc0/0xc0
[  270.196776]  ? print_usage_bug+0xc0/0xc0
[  270.200941]  ? print_usage_bug+0xc0/0xc0
[  270.205024]  ? find_held_lock+0x36/0x1c0
[  270.209129]  ? mark_held_locks+0xc7/0x130
[  270.213288]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  270.218392]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  270.223510]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  270.228093]  ? trace_hardirqs_on+0xbd/0x310
[  270.232443]  ? kasan_check_read+0x11/0x20
[  270.236622]  ? ___ratelimit+0x3b4/0x672
[  270.240606]  ? trace_hardirqs_off_caller+0x310/0x310
[  270.245745]  ? trace_hardirqs_on+0x310/0x310
[  270.250153]  ? lock_downgrade+0x900/0x900
[  270.254312]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  270.259417]  ? ___ratelimit+0x3b9/0x672
[  270.263440]  ? idr_get_free+0xf70/0xf70
[  270.267420]  ? kasan_check_read+0x11/0x20
[  270.271592]  ? do_raw_spin_unlock+0xa7/0x330
[  270.276028]  oom_kill_process.cold.27+0x10/0x903
[  270.280787]  ? zap_class+0x640/0x640
[  270.284501]  ? _raw_spin_unlock+0x2c/0x50
[  270.288657]  ? oom_badness+0xe6/0xaa0
[  270.292456]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  270.297386]  ? kasan_check_read+0x11/0x20
[  270.301532]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  270.306813]  ? oom_evaluate_task+0x540/0x540
[  270.311295]  ? find_held_lock+0x36/0x1c0
[  270.315365]  ? out_of_memory+0x974/0x1430
[  270.319524]  ? lock_downgrade+0x900/0x900
[  270.323691]  ? check_preemption_disabled+0x48/0x280
[  270.328711]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  270.333654]  ? kasan_check_read+0x11/0x20
[  270.337806]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  270.343150]  ? rcu_softirq_qs+0x20/0x20
[  270.347135]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  270.352677]  ? oom_evaluate_task+0x302/0x540
[  270.357090]  out_of_memory+0xa84/0x1430
[  270.361075]  ? oom_killer_disable+0x3a0/0x3a0
[  270.365603]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  270.370562]  ? __ww_mutex_check_waiters+0x160/0x160
[  270.375619]  __alloc_pages_slowpath+0x232c/0x2de0
[  270.380495]  ? warn_alloc+0x120/0x120
[  270.384326]  ? mark_held_locks+0x130/0x130
[  270.388567]  ? find_get_entry+0xaae/0x1120
[  270.392812]  ? filemap_map_pages+0x1a20/0x1a20
[  270.397603]  ? zap_class+0x640/0x640
[  270.401334]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.406875]  ? check_preemption_disabled+0x48/0x280
[  270.411895]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  270.417431]  ? should_fail+0x22d/0xd01
[  270.421322]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  270.426441]  ? zap_class+0x640/0x640
[  270.430192]  ? __lock_is_held+0xb5/0x140
[  270.434262]  ? mark_held_locks+0x130/0x130
[  270.438502]  ? lock_release+0xa00/0xa00
[  270.442478]  ? perf_trace_sched_process_exec+0x860/0x860
[  270.447928]  ? xa_load+0x2ba/0x460
[  270.451500]  ? lock_downgrade+0x900/0x900
[  270.455669]  ? __might_sleep+0x95/0x190
[  270.459671]  __alloc_pages_nodemask+0xad8/0xea0
[  270.464383]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  270.469414]  ? __page_cache_alloc+0x191/0x5c0
[  270.473905]  ? xa_load+0x2e1/0x460
[  270.477459]  ? xa_clear_mark+0x40/0x40
[  270.481363]  ? zap_class+0x640/0x640
[  270.485085]  ? zap_class+0x640/0x640
[  270.488802]  ? zap_class+0x640/0x640
[  270.492529]  ? __do_page_cache_readahead+0x663/0x810
[  270.497662]  ? find_held_lock+0x36/0x1c0
[  270.501736]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  270.507283]  alloc_pages_current+0x173/0x350
[  270.511705]  __page_cache_alloc+0x38c/0x5c0
[  270.516031]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  270.520966]  ? kasan_check_read+0x11/0x20
[  270.525152]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  270.530473]  ? generic_perform_write+0x6a0/0x6a0
[  270.535242]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  270.540797]  ? check_preemption_disabled+0x48/0x280
[  270.545852]  filemap_fault+0x1595/0x25f0
[  270.549980]  ? __lock_page_or_retry+0xa00/0xa00
[  270.554673]  ? mark_held_locks+0x130/0x130
[  270.558948]  ? filemap_map_pages+0xd6b/0x1a20
[  270.563458]  ? lock_downgrade+0x900/0x900
[  270.567625]  ? check_preemption_disabled+0x48/0x280
[  270.572676]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  270.577616]  ? kasan_check_read+0x11/0x20
[  270.581800]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  270.587090]  ? rcu_softirq_qs+0x20/0x20
[  270.591090]  ? filemap_map_pages+0xd92/0x1a20
[  270.595617]  ? find_get_entries_tag+0x1400/0x1400
[  270.600483]  ? debug_object_destroy+0x2b0/0x2b0
[  270.605179]  ? lock_pi_update_atomic+0x150/0x150
[  270.609958]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.615530]  ? lock_acquire+0x1ed/0x520
[  270.619511]  ? ext4_filemap_fault+0x7a/0xad
[  270.624439]  ? lock_release+0xa00/0xa00
[  270.628423]  ? perf_trace_sched_process_exec+0x860/0x860
[  270.633896]  ? print_usage_bug+0xc0/0xc0
[  270.637973]  ? print_usage_bug+0xc0/0xc0
[  270.642054]  ? down_read+0x8d/0x120
[  270.645685]  ? ext4_filemap_fault+0x7a/0xad
[  270.650024]  ? __down_interruptible+0x700/0x700
[  270.654722]  ext4_filemap_fault+0x82/0xad
[  270.658890]  __do_fault+0x100/0x6b0
[  270.662532]  ? pmd_devmap_trans_unstable+0x220/0x220
[  270.667662]  ? mark_held_locks+0x130/0x130
[  270.671915]  ? mark_held_locks+0x130/0x130
[  270.676166]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  270.680952]  ? retint_kernel+0x2d/0x2d
[  270.684856]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  270.690418]  __handle_mm_fault+0x3ea0/0x5be0
[  270.694844]  ? perf_trace_lock+0x7a0/0x7a0
[  270.699109]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  270.703984]  ? __switch_to_asm+0x34/0x70
[  270.708077]  ? __switch_to_asm+0x34/0x70
[  270.712172]  ? zap_class+0x640/0x640
[  270.715896]  ? zap_class+0x640/0x640
[  270.719617]  ? __x64_sys_futex+0x53e/0x6a0
[  270.723878]  ? find_held_lock+0x36/0x1c0
[  270.728005]  ? handle_mm_fault+0x42a/0xc70
[  270.732256]  ? lock_downgrade+0x900/0x900
[  270.736420]  ? check_preemption_disabled+0x48/0x280
[  270.741458]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  270.746402]  ? kasan_check_read+0x11/0x20
[  270.750562]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  270.756334]  ? rcu_softirq_qs+0x20/0x20
[  270.760317]  ? trace_hardirqs_off_caller+0x310/0x310
[  270.765444]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  270.770999]  ? check_preemption_disabled+0x48/0x280
[  270.776045]  handle_mm_fault+0x54f/0xc70
[  270.780127]  ? __handle_mm_fault+0x5be0/0x5be0
[  270.784737]  ? find_vma+0x34/0x190
[  270.788312]  __do_page_fault+0x5e8/0xe60
[  270.792389]  ? trace_hardirqs_off+0xb8/0x310
[  270.796831]  do_page_fault+0xf2/0x7e0
[  270.800672]  ? vmalloc_sync_all+0x30/0x30
[  270.804839]  ? error_entry+0x70/0xd0
[  270.808571]  ? trace_hardirqs_off_caller+0xbb/0x310
[  270.813605]  ? trace_hardirqs_on_caller+0xc0/0x310
[  270.818563]  ? syscall_return_slowpath+0x5e0/0x5e0
[  270.823558]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  270.828416]  ? trace_hardirqs_on_caller+0x310/0x310
[  270.833458]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  270.838932]  ? prepare_exit_to_usermode+0x291/0x3b0
[  270.843955]  ? page_fault+0x8/0x30
[  270.847543]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  270.852392]  ? page_fault+0x8/0x30
[  270.855951]  page_fault+0x1e/0x30
[  270.859407] RIP: 0033:0x4290d7
[  270.862611] Code: Bad RIP value.
[  270.865978] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  270.871341] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  270.878628] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  270.885908] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  270.893189] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  270.900457] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  270.907770] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  270.907855] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  270.915045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  270.915051] Call Trace:
[  270.915058]  <IRQ>
[  270.915080]  dump_stack+0x244/0x39d
[  270.915099]  ? dump_stack_print_info.cold.1+0x20/0x20
[  270.921715] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  270.930944]  warn_alloc.cold.116+0xb7/0x1bd
[  270.933501] syz-fuzzer cpuset=/ mems_allowed=0
[  270.935653]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  270.968383]  ? lock_downgrade+0x900/0x900
[  270.972558]  ? trace_hardirqs_off+0xb8/0x310
[  270.976974]  ? trace_hardirqs_off+0xb8/0x310
[  270.981391]  __alloc_pages_slowpath+0x2651/0x2de0
[  270.986287]  ? warn_alloc+0x120/0x120
[  270.990091]  ? print_usage_bug+0xc0/0xc0
[  270.994161]  ? warn_alloc+0x120/0x120
[  270.997966]  ? warn_alloc+0x120/0x120
[  271.001783]  ? print_usage_bug+0xc0/0xc0
[  271.005851]  ? kvm_clock_read+0x18/0x30
[  271.009827]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  271.014845]  ? print_usage_bug+0xc0/0xc0
[  271.018909]  ? __lock_acquire+0x62f/0x4c20
[  271.023150]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  271.028695]  ? should_fail+0x22d/0xd01
[  271.032581]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  271.037862]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  271.043020]  ? __lock_acquire+0x62f/0x4c20
[  271.047264]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  271.052376]  ? __lock_acquire+0x62f/0x4c20
[  271.056608]  ? should_fail+0x22d/0xd01
[  271.060504]  ? rcu_irq_exit+0x1a2/0x390
[  271.064492]  ? mark_held_locks+0x130/0x130
[  271.068734]  ? mark_held_locks+0x130/0x130
[  271.072979]  ? mark_held_locks+0xc7/0x130
[  271.077142]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  271.082160]  ? zap_class+0x640/0x640
[  271.085878]  ? print_usage_bug+0xc0/0xc0
[  271.089944]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.095489]  ? check_preemption_disabled+0x48/0x280
[  271.100515]  ? __lock_is_held+0xb5/0x140
[  271.104585]  __alloc_pages_nodemask+0xad8/0xea0
[  271.109254]  ? zap_class+0x640/0x640
[  271.112975]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  271.118005]  ? find_held_lock+0x36/0x1c0
[  271.122074]  ? ____cache_alloc_node+0x1c7/0x1e0
[  271.126750]  ? lock_downgrade+0x900/0x900
[  271.130906]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.136448]  cache_grow_begin+0xa5/0x8c0
[  271.140511]  ? do_raw_spin_unlock+0xa7/0x330
[  271.144928]  fallback_alloc+0x204/0x2e0
[  271.148914]  ____cache_alloc_node+0x1c7/0x1e0
[  271.153418]  kmem_cache_alloc_node+0xe3/0x730
[  271.157929]  ? ipv6_get_ifaddr+0x42e/0x620
[  271.162177]  __alloc_skb+0x119/0x770
[  271.165891]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  271.171173]  ? netdev_alloc_frag+0x1f0/0x1f0
[  271.175590]  ? lock_downgrade+0x900/0x900
[  271.179747]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.185290]  ? refcount_sub_and_test_checked+0x203/0x310
[  271.190746]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  271.196201]  ? addrconf_rs_timer+0x690/0x690
[  271.200625]  ndisc_alloc_skb+0x144/0x340
[  271.204707]  ndisc_send_rs+0x331/0x6e0
[  271.208609]  addrconf_rs_timer+0x314/0x690
[  271.212863]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  271.217109]  call_timer_fn+0x272/0x920
[  271.221000]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  271.225249]  ? process_timeout+0x40/0x40
[  271.229319]  ? __run_timers+0x7da/0xc70
[  271.233301]  ? _raw_spin_unlock_irq+0x27/0x80
[  271.237793]  ? _raw_spin_unlock_irq+0x27/0x80
[  271.242290]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  271.246528]  ? lockdep_hardirqs_on+0x296/0x5b0
[  271.251116]  ? trace_hardirqs_on+0xbd/0x310
[  271.255437]  ? kasan_check_read+0x11/0x20
[  271.259582]  ? __run_timers+0x7da/0xc70
[  271.263559]  ? trace_hardirqs_off_caller+0x310/0x310
[  271.268689]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  271.272928]  __run_timers+0x7e5/0xc70
[  271.276744]  ? timer_fixup_init+0x70/0x70
[  271.280898]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  271.285917]  ? zap_class+0x640/0x640
[  271.289641]  ? enqueue_hrtimer+0x1a5/0x560
[  271.293889]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  271.299089]  ? find_held_lock+0x36/0x1c0
[  271.303155]  ? zap_class+0x640/0x640
[  271.306877]  ? pvclock_read_flags+0x160/0x160
[  271.311404]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.316946]  ? check_preemption_disabled+0x48/0x280
[  271.321970]  ? __lock_is_held+0xb5/0x140
[  271.326036]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.331585]  ? check_preemption_disabled+0x48/0x280
[  271.336609]  run_timer_softirq+0x52/0xb0
[  271.340690]  ? rcu_read_lock_sched_held+0x14f/0x180
[  271.345710]  __do_softirq+0x308/0xb7e
[  271.349516]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  271.354009]  ? lock_downgrade+0x900/0x900
[  271.358164]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  271.363280]  ? pvclock_read_flags+0x160/0x160
[  271.367782]  ? lapic_next_event+0x5a/0x90
[  271.371937]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.377502]  ? kvm_clock_read+0x18/0x30
[  271.381477]  ? kvm_sched_clock_read+0x9/0x20
[  271.385890]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.391446]  ? check_preemption_disabled+0x48/0x280
[  271.396479]  irq_exit+0x17f/0x1c0
[  271.399937]  smp_apic_timer_interrupt+0x1cb/0x760
[  271.404781]  ? smp_reschedule_interrupt+0x109/0x650
[  271.409801]  ? smp_call_function_single_interrupt+0x650/0x650
[  271.415703]  ? interrupt_entry+0xb5/0xc0
[  271.419768]  ? trace_hardirqs_off_caller+0xbb/0x310
[  271.424785]  ? trace_hardirqs_off_caller+0xbb/0x310
[  271.429805]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  271.434660]  ? trace_hardirqs_on_caller+0x310/0x310
[  271.439681]  ? trace_hardirqs_on_caller+0x310/0x310
[  271.444704]  ? task_prio+0x50/0x50
[  271.448245]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.453788]  ? check_preemption_disabled+0x48/0x280
[  271.458810]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  271.463691]  apic_timer_interrupt+0xf/0x20
[  271.467926]  </IRQ>
[  271.470168] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  271.475119] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  271.494044] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  271.501800] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  271.509124] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  271.516408] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  271.523740] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  271.531039] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  271.538424]  skb_clone+0x1bb/0x500
[  271.541992]  ? skb_split+0x11e0/0x11e0
[  271.545903]  ? preempt_notifier_register+0x200/0x200
[  271.551050]  ? __switch_to_asm+0x34/0x70
[  271.555113]  ? __switch_to_asm+0x34/0x70
[  271.559178]  ? __switch_to_asm+0x40/0x70
[  271.563239]  ? __switch_to_asm+0x34/0x70
[  271.567312]  ? __switch_to_asm+0x40/0x70
[  271.571382]  ? __switch_to_asm+0x40/0x70
[  271.575462]  ? __switch_to_asm+0x34/0x70
[  271.579559]  ? __switch_to_asm+0x34/0x70
[  271.583671]  ? __switch_to_asm+0x40/0x70
[  271.587748]  ? __switch_to_asm+0x34/0x70
[  271.591834]  bpf_clone_redirect+0xb9/0x490
[  271.596078]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  271.601119]  ? __sched_text_start+0x8/0x8
[  271.605283]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  271.609871]  ? retint_kernel+0x2d/0x2d
[  271.613766]  ? trace_hardirqs_on_caller+0xc0/0x310
[  271.618721]  ? find_held_lock+0x36/0x1c0
[  271.622801]  ? lock_acquire+0x1ed/0x520
[  271.626801]  ? bpf_test_run+0x3cb/0x780
[  271.630787]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.636334]  ? check_preemption_disabled+0x48/0x280
[  271.641365]  ? kasan_check_read+0x11/0x20
[  271.645520]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  271.650805]  ? rcu_softirq_qs+0x20/0x20
[  271.654789]  ? preempt_schedule+0x4d/0x60
[  271.658946]  ? ___preempt_schedule+0x16/0x18
[  271.663407]  ? bpf_test_run+0x25d/0x780
[  271.667416]  ? netlink_diag_dump+0x2a0/0x2a0
[  271.671853]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  271.677402]  ? bpf_test_init.isra.10+0x70/0x100
[  271.682099]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  271.686895]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  271.691752]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  271.697305]  ? fput+0x130/0x1a0
[  271.700614]  ? __bpf_prog_get+0x9b/0x290
[  271.704714]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  271.709570]  ? bpf_prog_test_run+0x130/0x1a0
[  271.714002]  ? __x64_sys_bpf+0x3db/0x520
[  271.718065]  ? bpf_prog_get+0x20/0x20
[  271.721899]  ? do_syscall_64+0x1b9/0x820
[  271.725965]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  271.731343]  ? syscall_return_slowpath+0x5e0/0x5e0
[  271.736276]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  271.741138]  ? trace_hardirqs_on_caller+0x310/0x310
[  271.746194]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  271.751218]  ? prepare_exit_to_usermode+0x291/0x3b0
[  271.756268]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  271.761147]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  271.766541] warn_alloc_show_mem: 1 callbacks suppressed
[  271.766553] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  271.766556] Mem-Info:
[  271.766606] active_anon:57128 inactive_anon:971 isolated_anon:0
[  271.766606]  active_file:40 inactive_file:20 isolated_file:0
[  271.766606]  unevictable:0 dirty:11 writeback:0 unstable:0
[  271.766606]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  271.766606]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  271.766606]  free:13615 free_pcp:64 free_cma:0
[  271.771926] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  271.778952] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  271.781382] Call Trace:
[  271.814340] 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
[  271.823685]  <IRQ>
[  271.851597] lowmem_reserve[]: 0 2818 6321 6321
[  271.854207]  dump_stack+0x244/0x39d
[  271.880285] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  271.882440]  ? dump_stack_print_info.cold.1+0x20/0x20
[  271.887024] lowmem_reserve[]: 0 0 3503 3503
[  271.890662]  warn_alloc.cold.116+0xb7/0x1bd
[  271.918153] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  271.923411]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  271.927709] lowmem_reserve[]: 0 0 0 0
[  271.932026]  ? lock_downgrade+0x900/0x900
[  271.961146] 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
[  271.965992]  ? trace_hardirqs_off+0xb8/0x310
[  271.969764] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  271.973907]  ? trace_hardirqs_off+0xb8/0x310
[  271.987415] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  271.991822]  __alloc_pages_slowpath+0x2651/0x2de0
[  272.006896] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  272.011318]  ? warn_alloc+0x120/0x120
[  272.026898] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  272.031731]  ? warn_alloc+0x120/0x120
[  272.040544] 5171 total pagecache pages
[  272.044336]  ? zap_class+0x640/0x640
[  272.052889] 0 pages in swap cache
[  272.056708]  ? warn_alloc+0x120/0x120
[  272.060608] Swap cache stats: add 0, delete 0, find 0/0
[  272.064312]  ? print_usage_bug+0xc0/0xc0
[  272.067754] Free swap  = 0kB
[  272.071550]  ? print_usage_bug+0xc0/0xc0
[  272.076895] Total swap = 0kB
[  272.080950]  ? __lock_is_held+0xb5/0x140
[  272.083949] 1965979 pages RAM
[  272.088004]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  272.090994] 0 pages HighMem/MovableOnly
[  272.095046]  ? should_fail+0x22d/0xd01
[  272.098125] 342854 pages reserved
[  272.103660]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  272.107610] 0 pages cma reserved
[  272.111516]  ? __lock_acquire+0x62f/0x4c20
[  272.115053] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  272.120044]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  272.123485] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  272.127621]  ? __lock_acquire+0x62f/0x4c20
[  272.134103] syz-executor2 cpuset=syz2 mems_allowed=0
[  272.139205]  ? should_fail+0x22d/0xd01
[  272.139229]  ? mark_held_locks+0x130/0x130
[  272.167111]  ? mark_held_locks+0x130/0x130
[  272.171371]  ? __enqueue_entity+0x10d/0x1f0
[  272.175706]  ? zap_class+0x640/0x640
[  272.179419]  ? print_usage_bug+0xc0/0xc0
[  272.183482]  ? __lock_acquire+0x62f/0x4c20
[  272.187725]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.193263]  ? check_preemption_disabled+0x48/0x280
[  272.198287]  ? __lock_is_held+0xb5/0x140
[  272.202354]  __alloc_pages_nodemask+0xad8/0xea0
[  272.207024]  ? zap_class+0x640/0x640
[  272.210748]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  272.215782]  ? find_held_lock+0x36/0x1c0
[  272.219854]  ? ____cache_alloc_node+0x1c7/0x1e0
[  272.224523]  ? lock_downgrade+0x900/0x900
[  272.228690]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.234240]  cache_grow_begin+0xa5/0x8c0
[  272.238300]  ? do_raw_spin_unlock+0xa7/0x330
[  272.242717]  fallback_alloc+0x204/0x2e0
[  272.246702]  ____cache_alloc_node+0x1c7/0x1e0
[  272.251208]  kmem_cache_alloc_node+0xe3/0x730
[  272.255709]  ? ipv6_get_ifaddr+0x42e/0x620
[  272.259954]  __alloc_skb+0x119/0x770
[  272.263669]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  272.268952]  ? netdev_alloc_frag+0x1f0/0x1f0
[  272.273358]  ? lock_downgrade+0x900/0x900
[  272.277514]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.283062]  ? refcount_sub_and_test_checked+0x203/0x310
[  272.288515]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  272.293966]  ? addrconf_rs_timer+0x690/0x690
[  272.298389]  ndisc_alloc_skb+0x144/0x340
[  272.302454]  ndisc_send_rs+0x331/0x6e0
[  272.306345]  addrconf_rs_timer+0x314/0x690
[  272.310597]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.314842]  call_timer_fn+0x272/0x920
[  272.318731]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.322989]  ? process_timeout+0x40/0x40
[  272.327071]  ? mark_held_locks+0xc7/0x130
[  272.331221]  ? _raw_spin_unlock_irq+0x27/0x80
[  272.335739]  ? _raw_spin_unlock_irq+0x27/0x80
[  272.340230]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.344466]  ? lockdep_hardirqs_on+0x296/0x5b0
[  272.349050]  ? trace_hardirqs_on+0xbd/0x310
[  272.353375]  ? kasan_check_read+0x11/0x20
[  272.357522]  ? __run_timers+0x7da/0xc70
[  272.361501]  ? trace_hardirqs_off_caller+0x310/0x310
[  272.366611]  ? __next_timer_interrupt+0x1a0/0x1a0
[  272.371481]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.375719]  __run_timers+0x7e5/0xc70
[  272.379528]  ? timer_fixup_init+0x70/0x70
[  272.383677]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  272.388695]  ? zap_class+0x640/0x640
[  272.392413]  ? print_usage_bug+0xc0/0xc0
[  272.396517]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  272.401727]  ? find_held_lock+0x36/0x1c0
[  272.405821]  ? zap_class+0x640/0x640
[  272.409542]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.415079]  ? check_preemption_disabled+0x48/0x280
[  272.420127]  ? __lock_is_held+0xb5/0x140
[  272.424209]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.429751]  ? check_preemption_disabled+0x48/0x280
[  272.434777]  run_timer_softirq+0x52/0xb0
[  272.438843]  ? rcu_read_lock_sched_held+0x14f/0x180
[  272.443861]  __do_softirq+0x308/0xb7e
[  272.447668]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  272.452168]  ? lock_downgrade+0x900/0x900
[  272.456336]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  272.461444]  ? pvclock_read_flags+0x160/0x160
[  272.465940]  ? lapic_next_event+0x5a/0x90
[  272.470117]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.475675]  ? kvm_clock_read+0x18/0x30
[  272.479657]  ? kvm_sched_clock_read+0x9/0x20
[  272.484068]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.489610]  ? check_preemption_disabled+0x48/0x280
[  272.494648]  irq_exit+0x17f/0x1c0
[  272.498107]  smp_apic_timer_interrupt+0x1cb/0x760
[  272.502950]  ? smp_reschedule_interrupt+0x109/0x650
[  272.507971]  ? smp_call_function_single_interrupt+0x650/0x650
[  272.513855]  ? interrupt_entry+0xb5/0xc0
[  272.517921]  ? trace_hardirqs_off_caller+0xbb/0x310
[  272.522937]  ? trace_hardirqs_off_caller+0xbb/0x310
[  272.527974]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  272.532820]  ? trace_hardirqs_on_caller+0x310/0x310
[  272.537833]  ? trace_hardirqs_on_caller+0x310/0x310
[  272.542849]  ? task_prio+0x50/0x50
[  272.546389]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.551932]  ? check_preemption_disabled+0x48/0x280
[  272.556965]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  272.561819]  apic_timer_interrupt+0xf/0x20
[  272.566060]  </IRQ>
[  272.568315] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  272.573505] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  272.592406] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  272.600112] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  272.607381] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  272.614665] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  272.622111] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  272.629385] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  272.636688]  retint_kernel+0x1b/0x2d
[  272.640404] RIP: 0010:dump_stack+0x358/0x39d
[  272.644813] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  272.663714] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  272.671418] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  272.678710] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  272.685983] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  272.693254] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  272.700520] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  272.707804]  ? dump_stack+0x34f/0x39d
[  272.711632]  ? dump_stack_print_info.cold.1+0x20/0x20
[  272.716848]  ? mark_held_locks+0x130/0x130
[  272.721084]  ? mark_held_locks+0x130/0x130
[  272.725334]  dump_header+0x27b/0xf72
[  272.729058]  ? pagefault_out_of_memory+0x197/0x197
[  272.733996]  ? __lock_acquire+0x62f/0x4c20
[  272.738237]  ? print_usage_bug+0xc0/0xc0
[  272.742303]  ? zap_class+0x640/0x640
[  272.746019]  ? print_usage_bug+0xc0/0xc0
[  272.750081]  ? print_usage_bug+0xc0/0xc0
[  272.754614]  ? print_usage_bug+0xc0/0xc0
[  272.758702]  ? find_held_lock+0x36/0x1c0
[  272.762772]  ? mark_held_locks+0xc7/0x130
[  272.766934]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  272.772039]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  272.777174]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  272.781757]  ? trace_hardirqs_on+0xbd/0x310
[  272.786090]  ? kasan_check_read+0x11/0x20
[  272.790242]  ? ___ratelimit+0x3b4/0x672
[  272.794262]  ? trace_hardirqs_off_caller+0x310/0x310
[  272.799378]  ? trace_hardirqs_on+0x310/0x310
[  272.803784]  ? lock_downgrade+0x900/0x900
[  272.807938]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  272.813043]  ? ___ratelimit+0x3b9/0x672
[  272.817025]  ? idr_get_free+0xf70/0xf70
[  272.821011]  ? kasan_check_read+0x11/0x20
[  272.825163]  ? do_raw_spin_unlock+0xa7/0x330
[  272.829585]  oom_kill_process.cold.27+0x10/0x903
[  272.834342]  ? zap_class+0x640/0x640
[  272.838058]  ? _raw_spin_unlock+0x2c/0x50
[  272.842221]  ? oom_badness+0xe6/0xaa0
[  272.846019]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  272.850947]  ? kasan_check_read+0x11/0x20
[  272.855091]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  272.860368]  ? oom_evaluate_task+0x540/0x540
[  272.864780]  ? find_held_lock+0x36/0x1c0
[  272.868847]  ? out_of_memory+0x974/0x1430
[  272.873014]  ? lock_downgrade+0x900/0x900
[  272.877170]  ? check_preemption_disabled+0x48/0x280
[  272.882192]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  272.887119]  ? kasan_check_read+0x11/0x20
[  272.891286]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  272.896564]  ? rcu_softirq_qs+0x20/0x20
[  272.900544]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  272.906079]  ? oom_evaluate_task+0x302/0x540
[  272.910493]  out_of_memory+0xa84/0x1430
[  272.914476]  ? oom_killer_disable+0x3a0/0x3a0
[  272.918971]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  272.923907]  ? __ww_mutex_check_waiters+0x160/0x160
[  272.928959]  __alloc_pages_slowpath+0x232c/0x2de0
[  272.933855]  ? warn_alloc+0x120/0x120
[  272.937663]  ? mark_held_locks+0x130/0x130
[  272.941929]  ? find_get_entry+0xaae/0x1120
[  272.946176]  ? filemap_map_pages+0x1a20/0x1a20
[  272.950764]  ? zap_class+0x640/0x640
[  272.954483]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.960049]  ? check_preemption_disabled+0x48/0x280
[  272.965069]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  272.970657]  ? should_fail+0x22d/0xd01
[  272.974551]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  272.979659]  ? zap_class+0x640/0x640
[  272.983402]  ? __lock_is_held+0xb5/0x140
[  272.987472]  ? mark_held_locks+0x130/0x130
[  272.991728]  ? lock_release+0xa00/0xa00
[  272.995706]  ? perf_trace_sched_process_exec+0x860/0x860
[  273.001176]  ? xa_load+0x2ba/0x460
[  273.004764]  ? lock_downgrade+0x900/0x900
[  273.008918]  ? __might_sleep+0x95/0x190
[  273.012900]  __alloc_pages_nodemask+0xad8/0xea0
[  273.017597]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  273.022615]  ? __page_cache_alloc+0x191/0x5c0
[  273.027147]  ? xa_load+0x2e1/0x460
[  273.030695]  ? xa_clear_mark+0x40/0x40
[  273.034587]  ? zap_class+0x640/0x640
[  273.038312]  ? zap_class+0x640/0x640
[  273.042027]  ? zap_class+0x640/0x640
[  273.045759]  ? __do_page_cache_readahead+0x663/0x810
[  273.050866]  ? find_held_lock+0x36/0x1c0
[  273.054933]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  273.060491]  alloc_pages_current+0x173/0x350
[  273.064934]  __page_cache_alloc+0x38c/0x5c0
[  273.069252]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  273.074183]  ? kasan_check_read+0x11/0x20
[  273.078331]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.083607]  ? generic_perform_write+0x6a0/0x6a0
[  273.088381]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  273.093921]  ? check_preemption_disabled+0x48/0x280
[  273.098943]  filemap_fault+0x1595/0x25f0
[  273.103019]  ? __lock_page_or_retry+0xa00/0xa00
[  273.107691]  ? mark_held_locks+0x130/0x130
[  273.111970]  ? filemap_map_pages+0xd6b/0x1a20
[  273.116468]  ? lock_downgrade+0x900/0x900
[  273.120612]  ? check_preemption_disabled+0x48/0x280
[  273.125660]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  273.130587]  ? kasan_check_read+0x11/0x20
[  273.134735]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.140014]  ? rcu_softirq_qs+0x20/0x20
[  273.144001]  ? filemap_map_pages+0xd92/0x1a20
[  273.148508]  ? find_get_entries_tag+0x1400/0x1400
[  273.153355]  ? debug_object_destroy+0x2b0/0x2b0
[  273.158029]  ? lock_pi_update_atomic+0x150/0x150
[  273.162789]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.168339]  ? lock_acquire+0x1ed/0x520
[  273.172312]  ? ext4_filemap_fault+0x7a/0xad
[  273.176662]  ? lock_release+0xa00/0xa00
[  273.180644]  ? perf_trace_sched_process_exec+0x860/0x860
[  273.186129]  ? print_usage_bug+0xc0/0xc0
[  273.190195]  ? print_usage_bug+0xc0/0xc0
[  273.194307]  ? down_read+0x8d/0x120
[  273.197934]  ? ext4_filemap_fault+0x7a/0xad
[  273.202257]  ? __down_interruptible+0x700/0x700
[  273.206939]  ext4_filemap_fault+0x82/0xad
[  273.211091]  __do_fault+0x100/0x6b0
[  273.214756]  ? pmd_devmap_trans_unstable+0x220/0x220
[  273.219868]  ? mark_held_locks+0x130/0x130
[  273.224109]  ? mark_held_locks+0x130/0x130
[  273.228358]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  273.233119]  ? retint_kernel+0x2d/0x2d
[  273.237008]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  273.242553]  __handle_mm_fault+0x3ea0/0x5be0
[  273.246958]  ? perf_trace_lock+0x7a0/0x7a0
[  273.251204]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  273.256052]  ? __switch_to_asm+0x34/0x70
[  273.260112]  ? __switch_to_asm+0x34/0x70
[  273.264192]  ? zap_class+0x640/0x640
[  273.267908]  ? zap_class+0x640/0x640
[  273.271622]  ? __x64_sys_futex+0x53e/0x6a0
[  273.275880]  ? find_held_lock+0x36/0x1c0
[  273.279949]  ? handle_mm_fault+0x42a/0xc70
[  273.284189]  ? lock_downgrade+0x900/0x900
[  273.288337]  ? check_preemption_disabled+0x48/0x280
[  273.293360]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  273.298291]  ? kasan_check_read+0x11/0x20
[  273.302436]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.307714]  ? rcu_softirq_qs+0x20/0x20
[  273.311695]  ? trace_hardirqs_off_caller+0x310/0x310
[  273.316804]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  273.322343]  ? check_preemption_disabled+0x48/0x280
[  273.327375]  handle_mm_fault+0x54f/0xc70
[  273.331445]  ? __handle_mm_fault+0x5be0/0x5be0
[  273.336037]  ? find_vma+0x34/0x190
[  273.339584]  __do_page_fault+0x5e8/0xe60
[  273.343652]  ? trace_hardirqs_off+0xb8/0x310
[  273.348083]  do_page_fault+0xf2/0x7e0
[  273.351887]  ? vmalloc_sync_all+0x30/0x30
[  273.356037]  ? error_entry+0x70/0xd0
[  273.359757]  ? trace_hardirqs_off_caller+0xbb/0x310
[  273.364775]  ? trace_hardirqs_on_caller+0xc0/0x310
[  273.369711]  ? syscall_return_slowpath+0x5e0/0x5e0
[  273.374649]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  273.379502]  ? trace_hardirqs_on_caller+0x310/0x310
[  273.384524]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  273.389981]  ? prepare_exit_to_usermode+0x291/0x3b0
[  273.395000]  ? page_fault+0x8/0x30
[  273.398543]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  273.403400]  ? page_fault+0x8/0x30
[  273.406945]  page_fault+0x1e/0x30
[  273.410409] RIP: 0033:0x4290d7
[  273.413620] Code: Bad RIP value.
[  273.417017] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  273.422392] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  273.429663] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  273.436929] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  273.444195] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  273.451459] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  273.458752] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  273.458826] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  273.466045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  273.466051] Call Trace:
[  273.466057]  <IRQ>
[  273.466077]  dump_stack+0x244/0x39d
[  273.466096]  ? dump_stack_print_info.cold.1+0x20/0x20
[  273.472672] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  273.481929]  warn_alloc.cold.116+0xb7/0x1bd
[  273.484483] syz-fuzzer cpuset=/ mems_allowed=0
[  273.486626]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  273.519338]  ? lock_downgrade+0x900/0x900
[  273.523530]  ? trace_hardirqs_off+0xb8/0x310
[  273.527945]  ? trace_hardirqs_off+0xb8/0x310
[  273.532364]  __alloc_pages_slowpath+0x2651/0x2de0
[  273.537280]  ? warn_alloc+0x120/0x120
[  273.541093]  ? print_usage_bug+0xc0/0xc0
[  273.545162]  ? warn_alloc+0x120/0x120
[  273.548972]  ? warn_alloc+0x120/0x120
[  273.552775]  ? print_usage_bug+0xc0/0xc0
[  273.556839]  ? kvm_clock_read+0x18/0x30
[  273.560817]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  273.565837]  ? print_usage_bug+0xc0/0xc0
[  273.569898]  ? __lock_acquire+0x62f/0x4c20
[  273.574138]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  273.579694]  ? should_fail+0x22d/0xd01
[  273.583579]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.588860]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  273.593965]  ? __lock_acquire+0x62f/0x4c20
[  273.598204]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  273.603305]  ? __lock_acquire+0x62f/0x4c20
[  273.607536]  ? should_fail+0x22d/0xd01
[  273.611420]  ? rcu_irq_exit+0x1a2/0x390
[  273.615401]  ? mark_held_locks+0x130/0x130
[  273.619669]  ? mark_held_locks+0x130/0x130
[  273.623912]  ? mark_held_locks+0xc7/0x130
[  273.628070]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  273.633097]  ? zap_class+0x640/0x640
[  273.636823]  ? print_usage_bug+0xc0/0xc0
[  273.640891]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.646430]  ? check_preemption_disabled+0x48/0x280
[  273.651455]  ? __lock_is_held+0xb5/0x140
[  273.655525]  __alloc_pages_nodemask+0xad8/0xea0
[  273.660192]  ? zap_class+0x640/0x640
[  273.663921]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  273.668951]  ? find_held_lock+0x36/0x1c0
[  273.673024]  ? ____cache_alloc_node+0x1c7/0x1e0
[  273.677696]  ? lock_downgrade+0x900/0x900
[  273.681857]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.687421]  cache_grow_begin+0xa5/0x8c0
[  273.691509]  ? do_raw_spin_unlock+0xa7/0x330
[  273.695924]  fallback_alloc+0x204/0x2e0
[  273.699907]  ____cache_alloc_node+0x1c7/0x1e0
[  273.704408]  kmem_cache_alloc_node+0xe3/0x730
[  273.708925]  ? ipv6_get_ifaddr+0x42e/0x620
[  273.713174]  __alloc_skb+0x119/0x770
[  273.716901]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.722184]  ? netdev_alloc_frag+0x1f0/0x1f0
[  273.726593]  ? lock_downgrade+0x900/0x900
[  273.730750]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.736310]  ? refcount_sub_and_test_checked+0x203/0x310
[  273.741790]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  273.747253]  ? addrconf_rs_timer+0x690/0x690
[  273.751691]  ndisc_alloc_skb+0x144/0x340
[  273.755771]  ndisc_send_rs+0x331/0x6e0
[  273.759675]  addrconf_rs_timer+0x314/0x690
[  273.763918]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.768161]  call_timer_fn+0x272/0x920
[  273.772048]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.776284]  ? process_timeout+0x40/0x40
[  273.780351]  ? __run_timers+0x7da/0xc70
[  273.784326]  ? _raw_spin_unlock_irq+0x27/0x80
[  273.788818]  ? _raw_spin_unlock_irq+0x27/0x80
[  273.793309]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.797540]  ? lockdep_hardirqs_on+0x296/0x5b0
[  273.802132]  ? trace_hardirqs_on+0xbd/0x310
[  273.806449]  ? kasan_check_read+0x11/0x20
[  273.810594]  ? __run_timers+0x7da/0xc70
[  273.814571]  ? trace_hardirqs_off_caller+0x310/0x310
[  273.819679]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.823922]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.828154]  __run_timers+0x7e5/0xc70
[  273.831963]  ? timer_fixup_init+0x70/0x70
[  273.836128]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  273.841146]  ? zap_class+0x640/0x640
[  273.844865]  ? enqueue_hrtimer+0x1a5/0x560
[  273.849098]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  273.854295]  ? find_held_lock+0x36/0x1c0
[  273.858372]  ? zap_class+0x640/0x640
[  273.862088]  ? pvclock_read_flags+0x160/0x160
[  273.866582]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.872138]  ? check_preemption_disabled+0x48/0x280
[  273.877191]  ? __lock_is_held+0xb5/0x140
[  273.881254]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.886798]  ? check_preemption_disabled+0x48/0x280
[  273.891821]  run_timer_softirq+0x52/0xb0
[  273.895880]  ? rcu_read_lock_sched_held+0x14f/0x180
[  273.900895]  __do_softirq+0x308/0xb7e
[  273.904720]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  273.909229]  ? lock_downgrade+0x900/0x900
[  273.913382]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  273.918492]  ? pvclock_read_flags+0x160/0x160
[  273.922991]  ? lapic_next_event+0x5a/0x90
[  273.927158]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.932700]  ? kvm_clock_read+0x18/0x30
[  273.936680]  ? kvm_sched_clock_read+0x9/0x20
[  273.941094]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.946642]  ? check_preemption_disabled+0x48/0x280
[  273.951696]  irq_exit+0x17f/0x1c0
[  273.955149]  smp_apic_timer_interrupt+0x1cb/0x760
[  273.959990]  ? smp_reschedule_interrupt+0x109/0x650
[  273.965011]  ? smp_call_function_single_interrupt+0x650/0x650
[  273.970894]  ? interrupt_entry+0xb5/0xc0
[  273.975000]  ? trace_hardirqs_off_caller+0xbb/0x310
[  273.980030]  ? trace_hardirqs_off_caller+0xbb/0x310
[  273.985064]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  273.989909]  ? trace_hardirqs_on_caller+0x310/0x310
[  273.994923]  ? trace_hardirqs_on_caller+0x310/0x310
[  273.999949]  ? task_prio+0x50/0x50
[  274.003518]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.009058]  ? check_preemption_disabled+0x48/0x280
[  274.014083]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  274.018927]  apic_timer_interrupt+0xf/0x20
[  274.023177]  </IRQ>
[  274.025440] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  274.030390] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  274.049288] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  274.056990] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  274.064256] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  274.071544] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  274.078815] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  274.086100] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  274.093454]  skb_clone+0x1bb/0x500
[  274.097004]  ? skb_split+0x11e0/0x11e0
[  274.100906]  ? preempt_notifier_register+0x200/0x200
[  274.106021]  ? __switch_to_asm+0x34/0x70
[  274.110084]  ? __switch_to_asm+0x34/0x70
[  274.114166]  ? __switch_to_asm+0x40/0x70
[  274.118230]  ? __switch_to_asm+0x34/0x70
[  274.122295]  ? __switch_to_asm+0x40/0x70
[  274.126376]  ? __switch_to_asm+0x40/0x70
[  274.130453]  ? __switch_to_asm+0x34/0x70
[  274.134533]  ? __switch_to_asm+0x34/0x70
[  274.138616]  ? __switch_to_asm+0x40/0x70
[  274.142722]  ? __switch_to_asm+0x34/0x70
[  274.146791]  bpf_clone_redirect+0xb9/0x490
[  274.151047]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  274.156107]  ? __sched_text_start+0x8/0x8
[  274.160279]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  274.164873]  ? retint_kernel+0x2d/0x2d
[  274.168777]  ? trace_hardirqs_on_caller+0xc0/0x310
[  274.173733]  ? find_held_lock+0x36/0x1c0
[  274.177814]  ? lock_acquire+0x1ed/0x520
[  274.181815]  ? bpf_test_run+0x3cb/0x780
[  274.185808]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.191350]  ? check_preemption_disabled+0x48/0x280
[  274.196382]  ? kasan_check_read+0x11/0x20
[  274.200545]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  274.205826]  ? rcu_softirq_qs+0x20/0x20
[  274.209807]  ? preempt_schedule+0x4d/0x60
[  274.213962]  ? ___preempt_schedule+0x16/0x18
[  274.218393]  ? bpf_test_run+0x25d/0x780
[  274.222400]  ? netlink_diag_dump+0x2a0/0x2a0
[  274.226822]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  274.232423]  ? bpf_test_init.isra.10+0x70/0x100
[  274.237126]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  274.241910]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  274.246761]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  274.252318]  ? fput+0x130/0x1a0
[  274.255642]  ? __bpf_prog_get+0x9b/0x290
[  274.259731]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  274.264600]  ? bpf_prog_test_run+0x130/0x1a0
[  274.269019]  ? __x64_sys_bpf+0x3db/0x520
[  274.273083]  ? bpf_prog_get+0x20/0x20
[  274.276929]  ? do_syscall_64+0x1b9/0x820
[  274.280991]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  274.286360]  ? syscall_return_slowpath+0x5e0/0x5e0
[  274.291293]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  274.296156]  ? trace_hardirqs_on_caller+0x310/0x310
[  274.301192]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  274.306212]  ? prepare_exit_to_usermode+0x291/0x3b0
[  274.311264]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  274.316136]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  274.321630] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  274.321642] warn_alloc_show_mem: 1 callbacks suppressed
[  274.321650] Mem-Info:
[  274.328674] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  274.334080] active_anon:57128 inactive_anon:971 isolated_anon:0
[  274.334080]  active_file:40 inactive_file:20 isolated_file:0
[  274.334080]  unevictable:0 dirty:11 writeback:0 unstable:0
[  274.334080]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  274.334080]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  274.334080]  free:13615 free_pcp:64 free_cma:0
[  274.336435] Call Trace:
[  274.336444]  <IRQ>
[  274.345848] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  274.378804]  dump_stack+0x244/0x39d
[  274.381374] 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
[  274.383515]  ? dump_stack_print_info.cold.1+0x20/0x20
[  274.411422] lowmem_reserve[]: 0 2818 6321 6321
[  274.415064]  warn_alloc.cold.116+0xb7/0x1bd
[  274.441141] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  274.446329]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  274.450896] lowmem_reserve[]: 0 0 3503 3503
[  274.455212]  ? lock_downgrade+0x900/0x900
[  274.482717] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  274.487572]  ? trace_hardirqs_off+0xb8/0x310
[  274.491866] lowmem_reserve[]: 0 0 0 0
[  274.496042]  ? trace_hardirqs_off+0xb8/0x310
[  274.525194] 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
[  274.529609]  __alloc_pages_slowpath+0x2651/0x2de0
[  274.533389] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  274.537816]  ? warn_alloc+0x120/0x120
[  274.551306] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  274.556143]  ? print_usage_bug+0xc0/0xc0
[  274.571228] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  274.575013]  ? warn_alloc+0x120/0x120
[  274.590517] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  274.594566]  ? warn_alloc+0x120/0x120
[  274.603379] 5171 total pagecache pages
[  274.607174]  ? print_usage_bug+0xc0/0xc0
[  274.615727] 0 pages in swap cache
[  274.619516]  ? kvm_clock_read+0x18/0x30
[  274.623827] Swap cache stats: add 0, delete 0, find 0/0
[  274.623836] Free swap  = 0kB
[  274.627894]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  274.631608] Total swap = 0kB
[  274.635573]  ? print_usage_bug+0xc0/0xc0
[  274.640912] 1965979 pages RAM
[  274.643925]  ? __lock_acquire+0x62f/0x4c20
[  274.648924] 0 pages HighMem/MovableOnly
[  274.651936]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  274.655969] 342854 pages reserved
[  274.659067]  ? should_fail+0x22d/0xd01
[  274.663276] 0 pages cma reserved
[  274.667244]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  274.672821] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  274.676207]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  274.680123] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  274.683426]  ? __lock_acquire+0x62f/0x4c20
[  274.688688] syz-executor2 cpuset=syz2 mems_allowed=0
[  274.695176]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  274.725235]  ? __lock_acquire+0x62f/0x4c20
[  274.729465]  ? should_fail+0x22d/0xd01
[  274.733352]  ? rcu_irq_exit+0x1a2/0x390
[  274.737332]  ? mark_held_locks+0x130/0x130
[  274.741571]  ? mark_held_locks+0x130/0x130
[  274.745816]  ? mark_held_locks+0xc7/0x130
[  274.749963]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  274.755447]  ? zap_class+0x640/0x640
[  274.759181]  ? print_usage_bug+0xc0/0xc0
[  274.763242]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.768780]  ? check_preemption_disabled+0x48/0x280
[  274.773811]  ? __lock_is_held+0xb5/0x140
[  274.777885]  __alloc_pages_nodemask+0xad8/0xea0
[  274.782562]  ? zap_class+0x640/0x640
[  274.786299]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  274.791327]  ? find_held_lock+0x36/0x1c0
[  274.795413]  ? ____cache_alloc_node+0x1c7/0x1e0
[  274.800086]  ? lock_downgrade+0x900/0x900
[  274.804243]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.809798]  cache_grow_begin+0xa5/0x8c0
[  274.813861]  ? do_raw_spin_unlock+0xa7/0x330
[  274.818277]  fallback_alloc+0x204/0x2e0
[  274.822275]  ____cache_alloc_node+0x1c7/0x1e0
[  274.826776]  kmem_cache_alloc_node+0xe3/0x730
[  274.831275]  ? ipv6_get_ifaddr+0x42e/0x620
[  274.835537]  __alloc_skb+0x119/0x770
[  274.839249]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  274.844542]  ? netdev_alloc_frag+0x1f0/0x1f0
[  274.848966]  ? lock_downgrade+0x900/0x900
[  274.853118]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.858663]  ? refcount_sub_and_test_checked+0x203/0x310
[  274.864121]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  274.869569]  ? addrconf_rs_timer+0x690/0x690
[  274.873993]  ndisc_alloc_skb+0x144/0x340
[  274.878084]  ndisc_send_rs+0x331/0x6e0
[  274.881995]  addrconf_rs_timer+0x314/0x690
[  274.886238]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  274.890485]  call_timer_fn+0x272/0x920
[  274.894394]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  274.898633]  ? process_timeout+0x40/0x40
[  274.902715]  ? mark_held_locks+0xc7/0x130
[  274.906879]  ? _raw_spin_unlock_irq+0x27/0x80
[  274.911381]  ? _raw_spin_unlock_irq+0x27/0x80
[  274.915890]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  274.920122]  ? lockdep_hardirqs_on+0x296/0x5b0
[  274.924708]  ? trace_hardirqs_on+0xbd/0x310
[  274.929032]  ? kasan_check_read+0x11/0x20
[  274.933182]  ? __run_timers+0x7da/0xc70
[  274.937165]  ? trace_hardirqs_off_caller+0x310/0x310
[  274.942283]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  274.946517]  __run_timers+0x7e5/0xc70
[  274.950331]  ? timer_fixup_init+0x70/0x70
[  274.954482]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  274.959499]  ? zap_class+0x640/0x640
[  274.963219]  ? print_usage_bug+0xc0/0xc0
[  274.967283]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  274.972483]  ? find_held_lock+0x36/0x1c0
[  274.976552]  ? zap_class+0x640/0x640
[  274.980297]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.985835]  ? check_preemption_disabled+0x48/0x280
[  274.990861]  ? __lock_is_held+0xb5/0x140
[  274.994924]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.000459]  ? check_preemption_disabled+0x48/0x280
[  275.005478]  run_timer_softirq+0x52/0xb0
[  275.009539]  ? rcu_read_lock_sched_held+0x14f/0x180
[  275.014555]  __do_softirq+0x308/0xb7e
[  275.018360]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  275.022858]  ? lock_downgrade+0x900/0x900
[  275.027009]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  275.032119]  ? pvclock_read_flags+0x160/0x160
[  275.036621]  ? lapic_next_event+0x5a/0x90
[  275.040778]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.046324]  ? kvm_clock_read+0x18/0x30
[  275.050299]  ? kvm_sched_clock_read+0x9/0x20
[  275.054710]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.060246]  ? check_preemption_disabled+0x48/0x280
[  275.065275]  irq_exit+0x17f/0x1c0
[  275.068734]  smp_apic_timer_interrupt+0x1cb/0x760
[  275.073579]  ? smp_reschedule_interrupt+0x109/0x650
[  275.078599]  ? smp_call_function_single_interrupt+0x650/0x650
[  275.084483]  ? interrupt_entry+0xb5/0xc0
[  275.088545]  ? trace_hardirqs_off_caller+0xbb/0x310
[  275.093563]  ? trace_hardirqs_off_caller+0xbb/0x310
[  275.098578]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  275.103422]  ? trace_hardirqs_on_caller+0x310/0x310
[  275.108439]  ? trace_hardirqs_on_caller+0x310/0x310
[  275.113455]  ? task_prio+0x50/0x50
[  275.116998]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.122538]  ? check_preemption_disabled+0x48/0x280
[  275.127563]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  275.132419]  apic_timer_interrupt+0xf/0x20
[  275.136651]  </IRQ>
[  275.138903] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  275.144092] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  275.162993] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  275.170714] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  275.177982] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  275.185250] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  275.192514] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  275.199785] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  275.207094]  retint_kernel+0x1b/0x2d
[  275.210831] RIP: 0010:dump_stack+0x358/0x39d
[  275.215235] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  275.234146] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  275.241866] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  275.249151] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  275.256428] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  275.263700] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  275.270965] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  275.278248]  ? dump_stack+0x34f/0x39d
[  275.282054]  ? dump_stack_print_info.cold.1+0x20/0x20
[  275.287247]  ? mark_held_locks+0x130/0x130
[  275.291482]  ? mark_held_locks+0x130/0x130
[  275.295720]  dump_header+0x27b/0xf72
[  275.299458]  ? pagefault_out_of_memory+0x197/0x197
[  275.304394]  ? __lock_acquire+0x62f/0x4c20
[  275.308642]  ? print_usage_bug+0xc0/0xc0
[  275.312712]  ? zap_class+0x640/0x640
[  275.316426]  ? print_usage_bug+0xc0/0xc0
[  275.320481]  ? print_usage_bug+0xc0/0xc0
[  275.324540]  ? print_usage_bug+0xc0/0xc0
[  275.328612]  ? find_held_lock+0x36/0x1c0
[  275.332710]  ? mark_held_locks+0xc7/0x130
[  275.336858]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  275.341960]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  275.347064]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  275.351652]  ? trace_hardirqs_on+0xbd/0x310
[  275.355975]  ? kasan_check_read+0x11/0x20
[  275.360120]  ? ___ratelimit+0x3b4/0x672
[  275.364097]  ? trace_hardirqs_off_caller+0x310/0x310
[  275.369203]  ? trace_hardirqs_on+0x310/0x310
[  275.373649]  ? lock_downgrade+0x900/0x900
[  275.377815]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  275.382918]  ? ___ratelimit+0x3b9/0x672
[  275.386899]  ? idr_get_free+0xf70/0xf70
[  275.390876]  ? kasan_check_read+0x11/0x20
[  275.395029]  ? do_raw_spin_unlock+0xa7/0x330
[  275.399460]  oom_kill_process.cold.27+0x10/0x903
[  275.404226]  ? zap_class+0x640/0x640
[  275.407939]  ? _raw_spin_unlock+0x2c/0x50
[  275.412083]  ? oom_badness+0xe6/0xaa0
[  275.415883]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  275.420812]  ? kasan_check_read+0x11/0x20
[  275.424959]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.430248]  ? oom_evaluate_task+0x540/0x540
[  275.434667]  ? find_held_lock+0x36/0x1c0
[  275.438737]  ? out_of_memory+0x974/0x1430
[  275.442887]  ? lock_downgrade+0x900/0x900
[  275.447034]  ? check_preemption_disabled+0x48/0x280
[  275.452051]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  275.456982]  ? kasan_check_read+0x11/0x20
[  275.461142]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.466422]  ? rcu_softirq_qs+0x20/0x20
[  275.470403]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  275.475937]  ? oom_evaluate_task+0x302/0x540
[  275.480347]  out_of_memory+0xa84/0x1430
[  275.484340]  ? oom_killer_disable+0x3a0/0x3a0
[  275.488837]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  275.493771]  ? __ww_mutex_check_waiters+0x160/0x160
[  275.498801]  __alloc_pages_slowpath+0x232c/0x2de0
[  275.503712]  ? warn_alloc+0x120/0x120
[  275.507515]  ? mark_held_locks+0x130/0x130
[  275.511772]  ? find_get_entry+0xaae/0x1120
[  275.516020]  ? filemap_map_pages+0x1a20/0x1a20
[  275.520608]  ? zap_class+0x640/0x640
[  275.524334]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.529904]  ? check_preemption_disabled+0x48/0x280
[  275.534921]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  275.540462]  ? should_fail+0x22d/0xd01
[  275.544352]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  275.549505]  ? zap_class+0x640/0x640
[  275.553262]  ? __lock_is_held+0xb5/0x140
[  275.557344]  ? mark_held_locks+0x130/0x130
[  275.561578]  ? lock_release+0xa00/0xa00
[  275.565552]  ? perf_trace_sched_process_exec+0x860/0x860
[  275.571016]  ? xa_load+0x2ba/0x460
[  275.574580]  ? lock_downgrade+0x900/0x900
[  275.578749]  ? __might_sleep+0x95/0x190
[  275.582733]  __alloc_pages_nodemask+0xad8/0xea0
[  275.587424]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  275.592449]  ? __page_cache_alloc+0x191/0x5c0
[  275.596971]  ? xa_load+0x2e1/0x460
[  275.600524]  ? xa_clear_mark+0x40/0x40
[  275.604430]  ? zap_class+0x640/0x640
[  275.608153]  ? zap_class+0x640/0x640
[  275.611871]  ? zap_class+0x640/0x640
[  275.615587]  ? __do_page_cache_readahead+0x663/0x810
[  275.620695]  ? find_held_lock+0x36/0x1c0
[  275.624777]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  275.630325]  alloc_pages_current+0x173/0x350
[  275.634740]  __page_cache_alloc+0x38c/0x5c0
[  275.639074]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  275.644036]  ? kasan_check_read+0x11/0x20
[  275.648213]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.653491]  ? generic_perform_write+0x6a0/0x6a0
[  275.658244]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  275.663780]  ? check_preemption_disabled+0x48/0x280
[  275.668803]  filemap_fault+0x1595/0x25f0
[  275.672893]  ? __lock_page_or_retry+0xa00/0xa00
[  275.677561]  ? mark_held_locks+0x130/0x130
[  275.681805]  ? filemap_map_pages+0xd6b/0x1a20
[  275.686302]  ? lock_downgrade+0x900/0x900
[  275.690452]  ? check_preemption_disabled+0x48/0x280
[  275.695471]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  275.700401]  ? kasan_check_read+0x11/0x20
[  275.704549]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.709828]  ? rcu_softirq_qs+0x20/0x20
[  275.713819]  ? filemap_map_pages+0xd92/0x1a20
[  275.718330]  ? find_get_entries_tag+0x1400/0x1400
[  275.723193]  ? debug_object_destroy+0x2b0/0x2b0
[  275.727869]  ? lock_pi_update_atomic+0x150/0x150
[  275.732626]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.738191]  ? lock_acquire+0x1ed/0x520
[  275.742171]  ? ext4_filemap_fault+0x7a/0xad
[  275.746499]  ? lock_release+0xa00/0xa00
[  275.750472]  ? perf_trace_sched_process_exec+0x860/0x860
[  275.755923]  ? print_usage_bug+0xc0/0xc0
[  275.759989]  ? print_usage_bug+0xc0/0xc0
[  275.764064]  ? down_read+0x8d/0x120
[  275.767703]  ? ext4_filemap_fault+0x7a/0xad
[  275.772023]  ? __down_interruptible+0x700/0x700
[  275.776703]  ext4_filemap_fault+0x82/0xad
[  275.780856]  __do_fault+0x100/0x6b0
[  275.784489]  ? pmd_devmap_trans_unstable+0x220/0x220
[  275.789594]  ? mark_held_locks+0x130/0x130
[  275.793836]  ? mark_held_locks+0x130/0x130
[  275.798103]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  275.802870]  ? retint_kernel+0x2d/0x2d
[  275.806772]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  275.812317]  __handle_mm_fault+0x3ea0/0x5be0
[  275.816728]  ? perf_trace_lock+0x7a0/0x7a0
[  275.820984]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  275.825837]  ? __switch_to_asm+0x34/0x70
[  275.829906]  ? __switch_to_asm+0x34/0x70
[  275.833983]  ? zap_class+0x640/0x640
[  275.837701]  ? zap_class+0x640/0x640
[  275.841416]  ? __x64_sys_futex+0x53e/0x6a0
[  275.845664]  ? find_held_lock+0x36/0x1c0
[  275.849738]  ? handle_mm_fault+0x42a/0xc70
[  275.853977]  ? lock_downgrade+0x900/0x900
[  275.858124]  ? check_preemption_disabled+0x48/0x280
[  275.863177]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  275.868106]  ? kasan_check_read+0x11/0x20
[  275.872252]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.877527]  ? rcu_softirq_qs+0x20/0x20
[  275.881499]  ? trace_hardirqs_off_caller+0x310/0x310
[  275.886605]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  275.892150]  ? check_preemption_disabled+0x48/0x280
[  275.897186]  handle_mm_fault+0x54f/0xc70
[  275.901264]  ? __handle_mm_fault+0x5be0/0x5be0
[  275.905847]  ? find_vma+0x34/0x190
[  275.909395]  __do_page_fault+0x5e8/0xe60
[  275.913454]  ? trace_hardirqs_off+0xb8/0x310
[  275.917873]  do_page_fault+0xf2/0x7e0
[  275.921676]  ? vmalloc_sync_all+0x30/0x30
[  275.925825]  ? error_entry+0x70/0xd0
[  275.929545]  ? trace_hardirqs_off_caller+0xbb/0x310
[  275.934559]  ? trace_hardirqs_on_caller+0xc0/0x310
[  275.939487]  ? syscall_return_slowpath+0x5e0/0x5e0
[  275.944433]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  275.949293]  ? trace_hardirqs_on_caller+0x310/0x310
[  275.954310]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  275.959774]  ? prepare_exit_to_usermode+0x291/0x3b0
[  275.964790]  ? page_fault+0x8/0x30
[  275.968332]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  275.973192]  ? page_fault+0x8/0x30
[  275.976741]  page_fault+0x1e/0x30
[  275.980187] RIP: 0033:0x4290d7
[  275.983391] Code: Bad RIP value.
[  275.986754] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  275.992128] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  275.999405] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  276.006674] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  276.013967] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  276.021244] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  276.028533] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  276.028598] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  276.035805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  276.035810] Call Trace:
[  276.035816]  <IRQ>
[  276.035834]  dump_stack+0x244/0x39d
[  276.035867]  ? dump_stack_print_info.cold.1+0x20/0x20
[  276.042430] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  276.051702]  warn_alloc.cold.116+0xb7/0x1bd
[  276.054254] syz-fuzzer cpuset=/ mems_allowed=0
[  276.056411]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  276.089117]  ? lock_downgrade+0x900/0x900
[  276.093275]  ? trace_hardirqs_off+0xb8/0x310
[  276.097708]  ? trace_hardirqs_off+0xb8/0x310
[  276.102124]  __alloc_pages_slowpath+0x2651/0x2de0
[  276.106999]  ? warn_alloc+0x120/0x120
[  276.110801]  ? print_usage_bug+0xc0/0xc0
[  276.114863]  ? warn_alloc+0x120/0x120
[  276.118682]  ? warn_alloc+0x120/0x120
[  276.122484]  ? print_usage_bug+0xc0/0xc0
[  276.126567]  ? print_usage_bug+0xc0/0xc0
[  276.130642]  ? __lock_acquire+0x62f/0x4c20
[  276.134888]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  276.140427]  ? should_fail+0x22d/0xd01
[  276.144321]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  276.149435]  ? __lock_acquire+0x62f/0x4c20
[  276.153678]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  276.158797]  ? __lock_acquire+0x62f/0x4c20
[  276.163051]  ? should_fail+0x22d/0xd01
[  276.166934]  ? find_held_lock+0x36/0x1c0
[  276.171002]  ? mark_held_locks+0x130/0x130
[  276.175286]  ? mark_held_locks+0x130/0x130
[  276.179532]  ? zap_class+0x640/0x640
[  276.183261]  ? zap_class+0x640/0x640
[  276.186981]  ? print_usage_bug+0xc0/0xc0
[  276.191042]  ? do_raw_spin_unlock+0xa7/0x330
[  276.195451]  ? zap_class+0x640/0x640
[  276.199164]  ? print_usage_bug+0xc0/0xc0
[  276.203231]  ? wq_watchdog_touch+0x9c/0xfe
[  276.207464]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.213001]  ? check_preemption_disabled+0x48/0x280
[  276.218020]  ? __lock_is_held+0xb5/0x140
[  276.222085]  __alloc_pages_nodemask+0xad8/0xea0
[  276.226760]  ? zap_class+0x640/0x640
[  276.230478]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  276.235504]  ? find_held_lock+0x36/0x1c0
[  276.239572]  ? ____cache_alloc_node+0x1c7/0x1e0
[  276.244250]  ? lock_downgrade+0x900/0x900
[  276.248413]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.253956]  cache_grow_begin+0xa5/0x8c0
[  276.258035]  ? do_raw_spin_unlock+0xa7/0x330
[  276.262449]  fallback_alloc+0x204/0x2e0
[  276.266428]  ____cache_alloc_node+0x1c7/0x1e0
[  276.270925]  kmem_cache_alloc_node+0xe3/0x730
[  276.275423]  ? ipv6_get_ifaddr+0x42e/0x620
[  276.279674]  __alloc_skb+0x119/0x770
[  276.283385]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  276.288675]  ? netdev_alloc_frag+0x1f0/0x1f0
[  276.293081]  ? lock_downgrade+0x900/0x900
[  276.297239]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.302773]  ? refcount_sub_and_test_checked+0x203/0x310
[  276.308232]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  276.313688]  ? addrconf_rs_timer+0x690/0x690
[  276.318106]  ndisc_alloc_skb+0x144/0x340
[  276.322186]  ndisc_send_rs+0x331/0x6e0
[  276.326089]  addrconf_rs_timer+0x314/0x690
[  276.330386]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  276.334631]  call_timer_fn+0x272/0x920
[  276.338530]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  276.342763]  ? process_timeout+0x40/0x40
[  276.346831]  ? __run_timers+0x7da/0xc70
[  276.350805]  ? _raw_spin_unlock_irq+0x27/0x80
[  276.355298]  ? _raw_spin_unlock_irq+0x27/0x80
[  276.359817]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  276.364068]  ? lockdep_hardirqs_on+0x296/0x5b0
[  276.368661]  ? trace_hardirqs_on+0xbd/0x310
[  276.372981]  ? kasan_check_read+0x11/0x20
[  276.377135]  ? __run_timers+0x7da/0xc70
[  276.381133]  ? trace_hardirqs_off_caller+0x310/0x310
[  276.386238]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  276.390479]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  276.394710]  __run_timers+0x7e5/0xc70
[  276.398519]  ? timer_fixup_init+0x70/0x70
[  276.402676]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  276.407693]  ? zap_class+0x640/0x640
[  276.411425]  ? enqueue_hrtimer+0x1a5/0x560
[  276.415672]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  276.420868]  ? find_held_lock+0x36/0x1c0
[  276.424933]  ? zap_class+0x640/0x640
[  276.428665]  ? pvclock_read_flags+0x160/0x160
[  276.433166]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.438703]  ? check_preemption_disabled+0x48/0x280
[  276.443729]  ? __lock_is_held+0xb5/0x140
[  276.447792]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.453333]  ? check_preemption_disabled+0x48/0x280
[  276.458356]  run_timer_softirq+0x52/0xb0
[  276.462418]  ? rcu_read_lock_sched_held+0x14f/0x180
[  276.467446]  __do_softirq+0x308/0xb7e
[  276.471258]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  276.475755]  ? lock_downgrade+0x900/0x900
[  276.479909]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  276.485022]  ? pvclock_read_flags+0x160/0x160
[  276.489519]  ? lapic_next_event+0x5a/0x90
[  276.493672]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.499222]  ? kvm_clock_read+0x18/0x30
[  276.503194]  ? kvm_sched_clock_read+0x9/0x20
[  276.507607]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.513183]  ? check_preemption_disabled+0x48/0x280
[  276.518206]  irq_exit+0x17f/0x1c0
[  276.521670]  smp_apic_timer_interrupt+0x1cb/0x760
[  276.526527]  ? smp_reschedule_interrupt+0x109/0x650
[  276.531546]  ? smp_call_function_single_interrupt+0x650/0x650
[  276.537447]  ? interrupt_entry+0xb5/0xc0
[  276.541527]  ? trace_hardirqs_off_caller+0xbb/0x310
[  276.546540]  ? trace_hardirqs_off_caller+0xbb/0x310
[  276.551554]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  276.556395]  ? trace_hardirqs_on_caller+0x310/0x310
[  276.561412]  ? trace_hardirqs_on_caller+0x310/0x310
[  276.566430]  ? task_prio+0x50/0x50
[  276.569989]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.575525]  ? check_preemption_disabled+0x48/0x280
[  276.580545]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  276.585395]  apic_timer_interrupt+0xf/0x20
[  276.589631]  </IRQ>
[  276.591885] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  276.596812] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  276.615718] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  276.623925] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  276.631193] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  276.638484] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  276.645748] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  276.653014] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  276.660318]  skb_clone+0x1bb/0x500
[  276.663859]  ? skb_split+0x11e0/0x11e0
[  276.667764]  ? preempt_notifier_register+0x200/0x200
[  276.672873]  ? __switch_to_asm+0x34/0x70
[  276.676934]  ? __switch_to_asm+0x34/0x70
[  276.680990]  ? __switch_to_asm+0x40/0x70
[  276.685045]  ? __switch_to_asm+0x34/0x70
[  276.689104]  ? __switch_to_asm+0x40/0x70
[  276.693162]  ? __switch_to_asm+0x40/0x70
[  276.697223]  ? __switch_to_asm+0x34/0x70
[  276.701279]  ? __switch_to_asm+0x34/0x70
[  276.705341]  ? __switch_to_asm+0x40/0x70
[  276.709396]  ? __switch_to_asm+0x34/0x70
[  276.713457]  bpf_clone_redirect+0xb9/0x490
[  276.717702]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  276.722718]  ? __sched_text_start+0x8/0x8
[  276.726872]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  276.731450]  ? retint_kernel+0x2d/0x2d
[  276.735341]  ? trace_hardirqs_on_caller+0xc0/0x310
[  276.740292]  ? find_held_lock+0x36/0x1c0
[  276.744357]  ? lock_acquire+0x1ed/0x520
[  276.748362]  ? bpf_test_run+0x3cb/0x780
[  276.752337]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.758095]  ? check_preemption_disabled+0x48/0x280
[  276.763133]  ? kasan_check_read+0x11/0x20
[  276.767283]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  276.772558]  ? rcu_softirq_qs+0x20/0x20
[  276.776532]  ? preempt_schedule+0x4d/0x60
[  276.780686]  ? ___preempt_schedule+0x16/0x18
[  276.785101]  ? bpf_test_run+0x25d/0x780
[  276.789084]  ? netlink_diag_dump+0x2a0/0x2a0
[  276.793499]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  276.799038]  ? bpf_test_init.isra.10+0x70/0x100
[  276.803716]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  276.808481]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  276.813321]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  276.818862]  ? fput+0x130/0x1a0
[  276.822160]  ? __bpf_prog_get+0x9b/0x290
[  276.826226]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  276.831067]  ? bpf_prog_test_run+0x130/0x1a0
[  276.835501]  ? __x64_sys_bpf+0x3db/0x520
[  276.839561]  ? bpf_prog_get+0x20/0x20
[  276.843384]  ? do_syscall_64+0x1b9/0x820
[  276.847441]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  276.852803]  ? syscall_return_slowpath+0x5e0/0x5e0
[  276.857731]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  276.862575]  ? trace_hardirqs_on_caller+0x310/0x310
[  276.867593]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  276.872612]  ? prepare_exit_to_usermode+0x291/0x3b0
[  276.877665]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  276.882530]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  276.887927] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  276.887933] warn_alloc_show_mem: 1 callbacks suppressed
[  276.887963] Mem-Info:
[  276.894976] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  276.900341] active_anon:57128 inactive_anon:971 isolated_anon:0
[  276.900341]  active_file:40 inactive_file:20 isolated_file:0
[  276.900341]  unevictable:0 dirty:11 writeback:0 unstable:0
[  276.900341]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  276.900341]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  276.900341]  free:13615 free_pcp:64 free_cma:0
[  276.902713] Call Trace:
[  276.912098] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  276.945027]  <IRQ>
[  276.947599] 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
[  276.975535]  dump_stack+0x244/0x39d
[  276.977679] lowmem_reserve[]: 0 2818 6321 6321
[  277.003789]  ? dump_stack_print_info.cold.1+0x20/0x20
[  277.007390] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  277.011976]  warn_alloc.cold.116+0xb7/0x1bd
[  277.017136] lowmem_reserve[]: 0 0 3503 3503
[  277.044653]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  277.048956] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  277.053271]  ? lock_downgrade+0x900/0x900
[  277.058086] lowmem_reserve[]: 0 0 0 0
[  277.087233]  ? trace_hardirqs_off+0xb8/0x310
[  277.091352] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  277.095148]  ? trace_hardirqs_off+0xb8/0x310
[  277.099531] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  277.113050]  __alloc_pages_slowpath+0x2651/0x2de0
[  277.117429] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  277.132534]  ? warn_alloc+0x120/0x120
[  277.137341] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  277.152864]  ? print_usage_bug+0xc0/0xc0
[  277.156679] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  277.165512]  ? warn_alloc+0x120/0x120
[  277.169549] 5171 total pagecache pages
[  277.178117]  ? warn_alloc+0x120/0x120
[  277.181901] 0 pages in swap cache
[  277.185791]  ? print_usage_bug+0xc0/0xc0
[  277.189587] Swap cache stats: add 0, delete 0, find 0/0
[  277.193026]  ? kvm_clock_read+0x18/0x30
[  277.197059] Free swap  = 0kB
[  277.202428]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  277.206374] Total swap = 0kB
[  277.209383]  ? print_usage_bug+0xc0/0xc0
[  277.214374] 1965979 pages RAM
[  277.217386]  ? __lock_acquire+0x62f/0x4c20
[  277.221419] 0 pages HighMem/MovableOnly
[  277.224515]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  277.228723] 342854 pages reserved
[  277.232707]  ? should_fail+0x22d/0xd01
[  277.238220] 0 pages cma reserved
[  277.241673]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  277.245621] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  277.248917]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  277.254248] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  277.260663]  ? __lock_acquire+0x62f/0x4c20
[  277.265754] syz-executor2 cpuset=syz2 mems_allowed=0
[  277.276233]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  277.290645]  ? __lock_acquire+0x62f/0x4c20
[  277.294894]  ? should_fail+0x22d/0xd01
[  277.298781]  ? rcu_irq_exit+0x1a2/0x390
[  277.302779]  ? mark_held_locks+0x130/0x130
[  277.307019]  ? mark_held_locks+0x130/0x130
[  277.311275]  ? mark_held_locks+0xc7/0x130
[  277.315437]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  277.320457]  ? zap_class+0x640/0x640
[  277.324173]  ? print_usage_bug+0xc0/0xc0
[  277.328240]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.333783]  ? check_preemption_disabled+0x48/0x280
[  277.338809]  ? __lock_is_held+0xb5/0x140
[  277.342883]  __alloc_pages_nodemask+0xad8/0xea0
[  277.347555]  ? zap_class+0x640/0x640
[  277.351276]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  277.356304]  ? find_held_lock+0x36/0x1c0
[  277.360376]  ? ____cache_alloc_node+0x1c7/0x1e0
[  277.365046]  ? lock_downgrade+0x900/0x900
[  277.369203]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.374774]  cache_grow_begin+0xa5/0x8c0
[  277.378838]  ? do_raw_spin_unlock+0xa7/0x330
[  277.383256]  fallback_alloc+0x204/0x2e0
[  277.387240]  ____cache_alloc_node+0x1c7/0x1e0
[  277.391746]  kmem_cache_alloc_node+0xe3/0x730
[  277.396243]  ? ipv6_get_ifaddr+0x42e/0x620
[  277.400490]  __alloc_skb+0x119/0x770
[  277.404204]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  277.409504]  ? netdev_alloc_frag+0x1f0/0x1f0
[  277.413925]  ? lock_downgrade+0x900/0x900
[  277.418080]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.423616]  ? refcount_sub_and_test_checked+0x203/0x310
[  277.429079]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  277.434528]  ? addrconf_rs_timer+0x690/0x690
[  277.438962]  ndisc_alloc_skb+0x144/0x340
[  277.443026]  ndisc_send_rs+0x331/0x6e0
[  277.446924]  addrconf_rs_timer+0x314/0x690
[  277.451216]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.455460]  call_timer_fn+0x272/0x920
[  277.459380]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.463626]  ? process_timeout+0x40/0x40
[  277.467721]  ? mark_held_locks+0xc7/0x130
[  277.471872]  ? _raw_spin_unlock_irq+0x27/0x80
[  277.476365]  ? _raw_spin_unlock_irq+0x27/0x80
[  277.480875]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.485109]  ? lockdep_hardirqs_on+0x296/0x5b0
[  277.489698]  ? trace_hardirqs_on+0xbd/0x310
[  277.494018]  ? kasan_check_read+0x11/0x20
[  277.498171]  ? __run_timers+0x7da/0xc70
[  277.502150]  ? trace_hardirqs_off_caller+0x310/0x310
[  277.507267]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.511505]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.515739]  __run_timers+0x7e5/0xc70
[  277.519549]  ? timer_fixup_init+0x70/0x70
[  277.523701]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  277.528718]  ? zap_class+0x640/0x640
[  277.532454]  ? print_usage_bug+0xc0/0xc0
[  277.536517]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  277.541716]  ? find_held_lock+0x36/0x1c0
[  277.545782]  ? zap_class+0x640/0x640
[  277.549504]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.555044]  ? check_preemption_disabled+0x48/0x280
[  277.560100]  ? __lock_is_held+0xb5/0x140
[  277.564169]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.569706]  ? check_preemption_disabled+0x48/0x280
[  277.574729]  run_timer_softirq+0x52/0xb0
[  277.578791]  ? rcu_read_lock_sched_held+0x14f/0x180
[  277.583808]  __do_softirq+0x308/0xb7e
[  277.587614]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  277.592113]  ? lock_downgrade+0x900/0x900
[  277.596264]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  277.601380]  ? pvclock_read_flags+0x160/0x160
[  277.605876]  ? lapic_next_event+0x5a/0x90
[  277.610028]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.615570]  ? kvm_clock_read+0x18/0x30
[  277.619556]  ? kvm_sched_clock_read+0x9/0x20
[  277.623968]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.629518]  ? check_preemption_disabled+0x48/0x280
[  277.634544]  irq_exit+0x17f/0x1c0
[  277.638000]  smp_apic_timer_interrupt+0x1cb/0x760
[  277.642839]  ? smp_reschedule_interrupt+0x109/0x650
[  277.647856]  ? smp_call_function_single_interrupt+0x650/0x650
[  277.653743]  ? interrupt_entry+0xb5/0xc0
[  277.657806]  ? trace_hardirqs_off_caller+0xbb/0x310
[  277.662820]  ? trace_hardirqs_off_caller+0xbb/0x310
[  277.667870]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  277.672729]  ? trace_hardirqs_on_caller+0x310/0x310
[  277.677763]  ? trace_hardirqs_on_caller+0x310/0x310
[  277.682779]  ? task_prio+0x50/0x50
[  277.686332]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.691884]  ? check_preemption_disabled+0x48/0x280
[  277.696921]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  277.701799]  apic_timer_interrupt+0xf/0x20
[  277.706024]  </IRQ>
[  277.708440] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  277.713629] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  277.732560] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  277.740267] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  277.747550] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  277.754816] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  277.762083] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  277.769362] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  277.776663]  retint_kernel+0x1b/0x2d
[  277.780394] RIP: 0010:dump_stack+0x358/0x39d
[  277.784803] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  277.803715] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  277.811421] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  277.818690] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  277.825958] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  277.833225] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  277.840491] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  277.847802]  ? dump_stack+0x34f/0x39d
[  277.851614]  ? dump_stack_print_info.cold.1+0x20/0x20
[  277.856812]  ? mark_held_locks+0x130/0x130
[  277.861054]  ? mark_held_locks+0x130/0x130
[  277.865289]  dump_header+0x27b/0xf72
[  277.869016]  ? pagefault_out_of_memory+0x197/0x197
[  277.873954]  ? __lock_acquire+0x62f/0x4c20
[  277.878193]  ? print_usage_bug+0xc0/0xc0
[  277.882258]  ? zap_class+0x640/0x640
[  277.885973]  ? print_usage_bug+0xc0/0xc0
[  277.890032]  ? print_usage_bug+0xc0/0xc0
[  277.894096]  ? print_usage_bug+0xc0/0xc0
[  277.898187]  ? find_held_lock+0x36/0x1c0
[  277.902258]  ? mark_held_locks+0xc7/0x130
[  277.906411]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  277.911510]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  277.916613]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  277.921203]  ? trace_hardirqs_on+0xbd/0x310
[  277.925542]  ? kasan_check_read+0x11/0x20
[  277.929688]  ? ___ratelimit+0x3b4/0x672
[  277.933670]  ? trace_hardirqs_off_caller+0x310/0x310
[  277.938810]  ? trace_hardirqs_on+0x310/0x310
[  277.943272]  ? lock_downgrade+0x900/0x900
[  277.947426]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  277.952531]  ? ___ratelimit+0x3b9/0x672
[  277.956509]  ? idr_get_free+0xf70/0xf70
[  277.960495]  ? kasan_check_read+0x11/0x20
[  277.964649]  ? do_raw_spin_unlock+0xa7/0x330
[  277.969068]  oom_kill_process.cold.27+0x10/0x903
[  277.973823]  ? zap_class+0x640/0x640
[  277.977549]  ? _raw_spin_unlock+0x2c/0x50
[  277.981712]  ? oom_badness+0xe6/0xaa0
[  277.985537]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  277.990466]  ? kasan_check_read+0x11/0x20
[  277.994611]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  277.999900]  ? oom_evaluate_task+0x540/0x540
[  278.004314]  ? find_held_lock+0x36/0x1c0
[  278.008384]  ? out_of_memory+0x974/0x1430
[  278.012535]  ? lock_downgrade+0x900/0x900
[  278.016685]  ? check_preemption_disabled+0x48/0x280
[  278.021706]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  278.026652]  ? kasan_check_read+0x11/0x20
[  278.030807]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  278.036098]  ? rcu_softirq_qs+0x20/0x20
[  278.040075]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.045612]  ? oom_evaluate_task+0x302/0x540
[  278.050032]  out_of_memory+0xa84/0x1430
[  278.054015]  ? oom_killer_disable+0x3a0/0x3a0
[  278.058513]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  278.063447]  ? __ww_mutex_check_waiters+0x160/0x160
[  278.068475]  __alloc_pages_slowpath+0x232c/0x2de0
[  278.073361]  ? warn_alloc+0x120/0x120
[  278.077162]  ? mark_held_locks+0x130/0x130
[  278.081402]  ? find_get_entry+0xaae/0x1120
[  278.085695]  ? filemap_map_pages+0x1a20/0x1a20
[  278.090309]  ? zap_class+0x640/0x640
[  278.094029]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.099566]  ? check_preemption_disabled+0x48/0x280
[  278.104587]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.110124]  ? should_fail+0x22d/0xd01
[  278.114015]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  278.119137]  ? zap_class+0x640/0x640
[  278.122895]  ? __lock_is_held+0xb5/0x140
[  278.126977]  ? mark_held_locks+0x130/0x130
[  278.131230]  ? lock_release+0xa00/0xa00
[  278.135206]  ? perf_trace_sched_process_exec+0x860/0x860
[  278.140660]  ? xa_load+0x2ba/0x460
[  278.144215]  ? lock_downgrade+0x900/0x900
[  278.148384]  ? __might_sleep+0x95/0x190
[  278.152378]  __alloc_pages_nodemask+0xad8/0xea0
[  278.157056]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  278.162070]  ? __page_cache_alloc+0x191/0x5c0
[  278.166561]  ? xa_load+0x2e1/0x460
[  278.170104]  ? xa_clear_mark+0x40/0x40
[  278.174006]  ? zap_class+0x640/0x640
[  278.177730]  ? zap_class+0x640/0x640
[  278.181440]  ? zap_class+0x640/0x640
[  278.185153]  ? __do_page_cache_readahead+0x663/0x810
[  278.190278]  ? find_held_lock+0x36/0x1c0
[  278.194343]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  278.199916]  alloc_pages_current+0x173/0x350
[  278.204347]  __page_cache_alloc+0x38c/0x5c0
[  278.208668]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  278.213596]  ? kasan_check_read+0x11/0x20
[  278.217744]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  278.223021]  ? generic_perform_write+0x6a0/0x6a0
[  278.227780]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.233331]  ? check_preemption_disabled+0x48/0x280
[  278.238354]  filemap_fault+0x1595/0x25f0
[  278.242431]  ? __lock_page_or_retry+0xa00/0xa00
[  278.247120]  ? mark_held_locks+0x130/0x130
[  278.251378]  ? filemap_map_pages+0xd6b/0x1a20
[  278.255876]  ? lock_downgrade+0x900/0x900
[  278.260024]  ? check_preemption_disabled+0x48/0x280
[  278.265045]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  278.269985]  ? kasan_check_read+0x11/0x20
[  278.274130]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  278.279407]  ? rcu_softirq_qs+0x20/0x20
[  278.283392]  ? filemap_map_pages+0xd92/0x1a20
[  278.287915]  ? find_get_entries_tag+0x1400/0x1400
[  278.292775]  ? debug_object_destroy+0x2b0/0x2b0
[  278.297449]  ? lock_pi_update_atomic+0x150/0x150
[  278.302202]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.307750]  ? lock_acquire+0x1ed/0x520
[  278.311722]  ? ext4_filemap_fault+0x7a/0xad
[  278.316049]  ? lock_release+0xa00/0xa00
[  278.320019]  ? perf_trace_sched_process_exec+0x860/0x860
[  278.325483]  ? print_usage_bug+0xc0/0xc0
[  278.329558]  ? print_usage_bug+0xc0/0xc0
[  278.333624]  ? down_read+0x8d/0x120
[  278.337266]  ? ext4_filemap_fault+0x7a/0xad
[  278.341589]  ? __down_interruptible+0x700/0x700
[  278.346270]  ext4_filemap_fault+0x82/0xad
[  278.350422]  __do_fault+0x100/0x6b0
[  278.354071]  ? pmd_devmap_trans_unstable+0x220/0x220
[  278.359191]  ? mark_held_locks+0x130/0x130
[  278.363444]  ? mark_held_locks+0x130/0x130
[  278.367677]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  278.372436]  ? retint_kernel+0x2d/0x2d
[  278.376321]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.381864]  __handle_mm_fault+0x3ea0/0x5be0
[  278.386271]  ? perf_trace_lock+0x7a0/0x7a0
[  278.390515]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  278.395363]  ? __switch_to_asm+0x34/0x70
[  278.399422]  ? __switch_to_asm+0x34/0x70
[  278.403498]  ? zap_class+0x640/0x640
[  278.407214]  ? zap_class+0x640/0x640
[  278.410925]  ? __x64_sys_futex+0x53e/0x6a0
[  278.415173]  ? find_held_lock+0x36/0x1c0
[  278.419246]  ? handle_mm_fault+0x42a/0xc70
[  278.423497]  ? lock_downgrade+0x900/0x900
[  278.427653]  ? check_preemption_disabled+0x48/0x280
[  278.432677]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  278.437605]  ? kasan_check_read+0x11/0x20
[  278.441759]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  278.447039]  ? rcu_softirq_qs+0x20/0x20
[  278.451024]  ? trace_hardirqs_off_caller+0x310/0x310
[  278.456124]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.461666]  ? check_preemption_disabled+0x48/0x280
[  278.466692]  handle_mm_fault+0x54f/0xc70
[  278.470762]  ? __handle_mm_fault+0x5be0/0x5be0
[  278.475347]  ? find_vma+0x34/0x190
[  278.478914]  __do_page_fault+0x5e8/0xe60
[  278.482976]  ? trace_hardirqs_off+0xb8/0x310
[  278.487399]  do_page_fault+0xf2/0x7e0
[  278.491200]  ? vmalloc_sync_all+0x30/0x30
[  278.495346]  ? error_entry+0x70/0xd0
[  278.499072]  ? trace_hardirqs_off_caller+0xbb/0x310
[  278.504099]  ? trace_hardirqs_on_caller+0xc0/0x310
[  278.509029]  ? syscall_return_slowpath+0x5e0/0x5e0
[  278.513960]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  278.518805]  ? trace_hardirqs_on_caller+0x310/0x310
[  278.523824]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  278.529277]  ? prepare_exit_to_usermode+0x291/0x3b0
[  278.534293]  ? page_fault+0x8/0x30
[  278.537833]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  278.542692]  ? page_fault+0x8/0x30
[  278.546231]  page_fault+0x1e/0x30
[  278.549680] RIP: 0033:0x4290d7
[  278.552899] Code: Bad RIP value.
[  278.556263] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  278.561623] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  278.568898] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  278.576166] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  278.583434] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  278.590698] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  278.597988] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  278.598067] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  278.605261] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  278.605267] Call Trace:
[  278.605287]  <IRQ>
[  278.605305]  dump_stack+0x244/0x39d
[  278.605354]  ? dump_stack_print_info.cold.1+0x20/0x20
[  278.611966] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  278.621683]  warn_alloc.cold.116+0xb7/0x1bd
[  278.624248] syz-fuzzer cpuset=/ mems_allowed=0
[  278.626390]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  278.659095]  ? lock_downgrade+0x900/0x900
[  278.663252]  ? trace_hardirqs_off+0xb8/0x310
[  278.667695]  ? trace_hardirqs_off+0xb8/0x310
[  278.672158]  __alloc_pages_slowpath+0x2651/0x2de0
[  278.677029]  ? warn_alloc+0x120/0x120
[  278.680833]  ? print_usage_bug+0xc0/0xc0
[  278.684913]  ? warn_alloc+0x120/0x120
[  278.688717]  ? warn_alloc+0x120/0x120
[  278.692525]  ? print_usage_bug+0xc0/0xc0
[  278.696628]  ? kvm_clock_read+0x18/0x30
[  278.700621]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  278.705654]  ? print_usage_bug+0xc0/0xc0
[  278.709724]  ? __lock_acquire+0x62f/0x4c20
[  278.713964]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.719499]  ? should_fail+0x22d/0xd01
[  278.723387]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  278.728679]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  278.733799]  ? __lock_acquire+0x62f/0x4c20
[  278.738050]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  278.743154]  ? __lock_acquire+0x62f/0x4c20
[  278.747396]  ? should_fail+0x22d/0xd01
[  278.751277]  ? rcu_irq_exit+0x1a2/0x390
[  278.755380]  ? mark_held_locks+0x130/0x130
[  278.759622]  ? mark_held_locks+0x130/0x130
[  278.763888]  ? mark_held_locks+0xc7/0x130
[  278.768051]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  278.773069]  ? zap_class+0x640/0x640
[  278.776810]  ? print_usage_bug+0xc0/0xc0
[  278.780877]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.786418]  ? check_preemption_disabled+0x48/0x280
[  278.791443]  ? __lock_is_held+0xb5/0x140
[  278.795509]  __alloc_pages_nodemask+0xad8/0xea0
[  278.800192]  ? zap_class+0x640/0x640
[  278.803911]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  278.808940]  ? find_held_lock+0x36/0x1c0
[  278.813014]  ? ____cache_alloc_node+0x1c7/0x1e0
[  278.817694]  ? lock_downgrade+0x900/0x900
[  278.821867]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.827424]  cache_grow_begin+0xa5/0x8c0
[  278.831495]  ? do_raw_spin_unlock+0xa7/0x330
[  278.835949]  fallback_alloc+0x204/0x2e0
[  278.839941]  ____cache_alloc_node+0x1c7/0x1e0
[  278.844442]  kmem_cache_alloc_node+0xe3/0x730
[  278.848941]  ? ipv6_get_ifaddr+0x42e/0x620
[  278.853186]  __alloc_skb+0x119/0x770
[  278.856899]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  278.862193]  ? netdev_alloc_frag+0x1f0/0x1f0
[  278.866602]  ? lock_downgrade+0x900/0x900
[  278.870761]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.876298]  ? refcount_sub_and_test_checked+0x203/0x310
[  278.881754]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  278.887206]  ? addrconf_rs_timer+0x690/0x690
[  278.891647]  ndisc_alloc_skb+0x144/0x340
[  278.895715]  ndisc_send_rs+0x331/0x6e0
[  278.899608]  addrconf_rs_timer+0x314/0x690
[  278.903856]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  278.908098]  call_timer_fn+0x272/0x920
[  278.911984]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  278.916216]  ? process_timeout+0x40/0x40
[  278.920287]  ? __run_timers+0x7da/0xc70
[  278.924288]  ? _raw_spin_unlock_irq+0x27/0x80
[  278.928785]  ? _raw_spin_unlock_irq+0x27/0x80
[  278.933282]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  278.937514]  ? lockdep_hardirqs_on+0x296/0x5b0
[  278.942146]  ? trace_hardirqs_on+0xbd/0x310
[  278.946470]  ? kasan_check_read+0x11/0x20
[  278.950617]  ? __run_timers+0x7da/0xc70
[  278.954601]  ? trace_hardirqs_off_caller+0x310/0x310
[  278.959767]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  278.964020]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  278.968255]  __run_timers+0x7e5/0xc70
[  278.972062]  ? timer_fixup_init+0x70/0x70
[  278.976208]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  278.981223]  ? zap_class+0x640/0x640
[  278.984940]  ? enqueue_hrtimer+0x1a5/0x560
[  278.989177]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  278.994388]  ? find_held_lock+0x36/0x1c0
[  278.998458]  ? zap_class+0x640/0x640
[  279.002191]  ? pvclock_read_flags+0x160/0x160
[  279.006695]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.012229]  ? check_preemption_disabled+0x48/0x280
[  279.017270]  ? __lock_is_held+0xb5/0x140
[  279.021333]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.026870]  ? check_preemption_disabled+0x48/0x280
[  279.031891]  run_timer_softirq+0x52/0xb0
[  279.035952]  ? rcu_read_lock_sched_held+0x14f/0x180
[  279.040977]  __do_softirq+0x308/0xb7e
[  279.044793]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  279.049299]  ? lock_downgrade+0x900/0x900
[  279.053468]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  279.058589]  ? pvclock_read_flags+0x160/0x160
[  279.063100]  ? lapic_next_event+0x5a/0x90
[  279.067254]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.072797]  ? kvm_clock_read+0x18/0x30
[  279.076772]  ? kvm_sched_clock_read+0x9/0x20
[  279.081182]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.086736]  ? check_preemption_disabled+0x48/0x280
[  279.091767]  irq_exit+0x17f/0x1c0
[  279.095225]  smp_apic_timer_interrupt+0x1cb/0x760
[  279.100067]  ? smp_reschedule_interrupt+0x109/0x650
[  279.105082]  ? smp_call_function_single_interrupt+0x650/0x650
[  279.110963]  ? interrupt_entry+0xb5/0xc0
[  279.115038]  ? trace_hardirqs_off_caller+0xbb/0x310
[  279.120056]  ? trace_hardirqs_off_caller+0xbb/0x310
[  279.125071]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  279.129917]  ? trace_hardirqs_on_caller+0x310/0x310
[  279.134944]  ? trace_hardirqs_on_caller+0x310/0x310
[  279.139961]  ? task_prio+0x50/0x50
[  279.143501]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.149042]  ? check_preemption_disabled+0x48/0x280
[  279.154066]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  279.158933]  apic_timer_interrupt+0xf/0x20
[  279.163159]  </IRQ>
[  279.165404] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  279.170331] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  279.189230] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  279.196935] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  279.204200] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  279.211468] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  279.218735] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  279.226002] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  279.233310]  skb_clone+0x1bb/0x500
[  279.236857]  ? skb_split+0x11e0/0x11e0
[  279.240749]  ? preempt_notifier_register+0x200/0x200
[  279.245850]  ? __switch_to_asm+0x34/0x70
[  279.249908]  ? __switch_to_asm+0x34/0x70
[  279.253966]  ? __switch_to_asm+0x40/0x70
[  279.258037]  ? __switch_to_asm+0x34/0x70
[  279.262098]  ? __switch_to_asm+0x40/0x70
[  279.266156]  ? __switch_to_asm+0x40/0x70
[  279.270214]  ? __switch_to_asm+0x34/0x70
[  279.274288]  ? __switch_to_asm+0x34/0x70
[  279.278362]  ? __switch_to_asm+0x40/0x70
[  279.282420]  ? __switch_to_asm+0x34/0x70
[  279.286501]  bpf_clone_redirect+0xb9/0x490
[  279.290758]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  279.295780]  ? __sched_text_start+0x8/0x8
[  279.299933]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  279.304514]  ? retint_kernel+0x2d/0x2d
[  279.308457]  ? trace_hardirqs_on_caller+0xc0/0x310
[  279.313406]  ? find_held_lock+0x36/0x1c0
[  279.317488]  ? lock_acquire+0x1ed/0x520
[  279.321496]  ? bpf_test_run+0x3cb/0x780
[  279.325468]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.331009]  ? check_preemption_disabled+0x48/0x280
[  279.336028]  ? kasan_check_read+0x11/0x20
[  279.340192]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  279.345466]  ? rcu_softirq_qs+0x20/0x20
[  279.349454]  ? preempt_schedule+0x4d/0x60
[  279.353599]  ? ___preempt_schedule+0x16/0x18
[  279.358014]  ? bpf_test_run+0x25d/0x780
[  279.362027]  ? netlink_diag_dump+0x2a0/0x2a0
[  279.366434]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  279.371978]  ? bpf_test_init.isra.10+0x70/0x100
[  279.376681]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  279.381478]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  279.386319]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  279.391858]  ? fput+0x130/0x1a0
[  279.395173]  ? __bpf_prog_get+0x9b/0x290
[  279.399254]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  279.404094]  ? bpf_prog_test_run+0x130/0x1a0
[  279.408540]  ? __x64_sys_bpf+0x3db/0x520
[  279.412599]  ? bpf_prog_get+0x20/0x20
[  279.416421]  ? do_syscall_64+0x1b9/0x820
[  279.420481]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  279.425851]  ? syscall_return_slowpath+0x5e0/0x5e0
[  279.430779]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  279.435624]  ? trace_hardirqs_on_caller+0x310/0x310
[  279.440665]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  279.445689]  ? prepare_exit_to_usermode+0x291/0x3b0
[  279.450717]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  279.455565]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  279.460948] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  279.460953] warn_alloc_show_mem: 1 callbacks suppressed
[  279.460960] Mem-Info:
[  279.467975] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  279.473344] active_anon:57128 inactive_anon:971 isolated_anon:0
[  279.473344]  active_file:40 inactive_file:20 isolated_file:0
[  279.473344]  unevictable:0 dirty:11 writeback:0 unstable:0
[  279.473344]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  279.473344]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  279.473344]  free:13615 free_pcp:64 free_cma:0
[  279.475716] Call Trace:
[  279.485106] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  279.518033]  <IRQ>
[  279.520607] 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
[  279.548535]  dump_stack+0x244/0x39d
[  279.550662] lowmem_reserve[]: 0 2818 6321 6321
[  279.576765]  ? dump_stack_print_info.cold.1+0x20/0x20
[  279.580365] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  279.584948]  warn_alloc.cold.116+0xb7/0x1bd
[  279.590118] lowmem_reserve[]: 0 0 3503 3503
[  279.617608]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  279.621907] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  279.626222]  ? lock_downgrade+0x900/0x900
[  279.631038] lowmem_reserve[]: 0 0 0 0
[  279.660186]  ? trace_hardirqs_off+0xb8/0x310
[  279.664308] 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
[  279.668108]  ? trace_hardirqs_off+0xb8/0x310
[  279.672494] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  279.686030]  __alloc_pages_slowpath+0x2651/0x2de0
[  279.690426] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  279.705525]  ? warn_alloc+0x120/0x120
[  279.710326] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  279.725847]  ? print_usage_bug+0xc0/0xc0
[  279.729631] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  279.738456]  ? warn_alloc+0x120/0x120
[  279.742494] 5171 total pagecache pages
[  279.751060]  ? warn_alloc+0x120/0x120
[  279.754843] 0 pages in swap cache
[  279.758721]  ? print_usage_bug+0xc0/0xc0
[  279.762500] Swap cache stats: add 0, delete 0, find 0/0
[  279.765948]  ? kvm_clock_read+0x18/0x30
[  279.770024] Free swap  = 0kB
[  279.775380]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  279.779328] Total swap = 0kB
[  279.782354]  ? print_usage_bug+0xc0/0xc0
[  279.787342] 1965979 pages RAM
[  279.790361]  ? __lock_acquire+0x62f/0x4c20
[  279.794411] 0 pages HighMem/MovableOnly
[  279.797513]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  279.801739] 342854 pages reserved
[  279.805708]  ? should_fail+0x22d/0xd01
[  279.811218] 0 pages cma reserved
[  279.814672]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  279.814690]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  279.818611] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  279.821905]  ? __lock_acquire+0x62f/0x4c20
[  279.821923]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  279.821939]  ? __lock_acquire+0x62f/0x4c20
[  279.827250] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  279.832294]  ? should_fail+0x22d/0xd01
[  279.832307]  ? rcu_irq_exit+0x1a2/0x390
[  279.838777] syz-executor2 cpuset=syz2 mems_allowed=0
[  279.843009]  ? mark_held_locks+0x130/0x130
[  279.879927]  ? mark_held_locks+0x130/0x130
[  279.884173]  ? mark_held_locks+0xc7/0x130
[  279.888324]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  279.893359]  ? zap_class+0x640/0x640
[  279.897074]  ? print_usage_bug+0xc0/0xc0
[  279.901136]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.906698]  ? check_preemption_disabled+0x48/0x280
[  279.911724]  ? __lock_is_held+0xb5/0x140
[  279.915792]  __alloc_pages_nodemask+0xad8/0xea0
[  279.920463]  ? zap_class+0x640/0x640
[  279.924213]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  279.929249]  ? find_held_lock+0x36/0x1c0
[  279.933329]  ? ____cache_alloc_node+0x1c7/0x1e0
[  279.938034]  ? lock_downgrade+0x900/0x900
[  279.942190]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.947733]  cache_grow_begin+0xa5/0x8c0
[  279.951793]  ? do_raw_spin_unlock+0xa7/0x330
[  279.956208]  fallback_alloc+0x204/0x2e0
[  279.960189]  ____cache_alloc_node+0x1c7/0x1e0
[  279.964691]  kmem_cache_alloc_node+0xe3/0x730
[  279.969188]  ? ipv6_get_ifaddr+0x42e/0x620
[  279.973431]  __alloc_skb+0x119/0x770
[  279.977167]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  279.982450]  ? netdev_alloc_frag+0x1f0/0x1f0
[  279.986857]  ? lock_downgrade+0x900/0x900
[  279.991025]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.996581]  ? refcount_sub_and_test_checked+0x203/0x310
[  280.002035]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  280.007502]  ? addrconf_rs_timer+0x690/0x690
[  280.011923]  ndisc_alloc_skb+0x144/0x340
[  280.015989]  ndisc_send_rs+0x331/0x6e0
[  280.019897]  addrconf_rs_timer+0x314/0x690
[  280.024138]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  280.028404]  call_timer_fn+0x272/0x920
[  280.032306]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  280.036538]  ? process_timeout+0x40/0x40
[  280.040604]  ? mark_held_locks+0xc7/0x130
[  280.044759]  ? _raw_spin_unlock_irq+0x27/0x80
[  280.049267]  ? _raw_spin_unlock_irq+0x27/0x80
[  280.053789]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  280.058027]  ? lockdep_hardirqs_on+0x296/0x5b0
[  280.062623]  ? trace_hardirqs_on+0xbd/0x310
[  280.066950]  ? kasan_check_read+0x11/0x20
[  280.071095]  ? __run_timers+0x7da/0xc70
[  280.075069]  ? trace_hardirqs_off_caller+0x310/0x310
[  280.080180]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  280.084421]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  280.088660]  __run_timers+0x7e5/0xc70
[  280.092477]  ? timer_fixup_init+0x70/0x70
[  280.096624]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  280.101653]  ? zap_class+0x640/0x640
[  280.105373]  ? print_usage_bug+0xc0/0xc0
[  280.109439]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  280.114642]  ? find_held_lock+0x36/0x1c0
[  280.118713]  ? zap_class+0x640/0x640
[  280.122432]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.127971]  ? check_preemption_disabled+0x48/0x280
[  280.132996]  ? __lock_is_held+0xb5/0x140
[  280.137074]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.142614]  ? check_preemption_disabled+0x48/0x280
[  280.147657]  run_timer_softirq+0x52/0xb0
[  280.151739]  ? rcu_read_lock_sched_held+0x14f/0x180
[  280.156756]  __do_softirq+0x308/0xb7e
[  280.160588]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  280.165079]  ? lock_downgrade+0x900/0x900
[  280.169248]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  280.174356]  ? pvclock_read_flags+0x160/0x160
[  280.178858]  ? lapic_next_event+0x5a/0x90
[  280.183021]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.188581]  ? kvm_clock_read+0x18/0x30
[  280.192553]  ? kvm_sched_clock_read+0x9/0x20
[  280.196974]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.202511]  ? check_preemption_disabled+0x48/0x280
[  280.207553]  irq_exit+0x17f/0x1c0
[  280.211021]  smp_apic_timer_interrupt+0x1cb/0x760
[  280.215880]  ? smp_reschedule_interrupt+0x109/0x650
[  280.220902]  ? smp_call_function_single_interrupt+0x650/0x650
[  280.226782]  ? interrupt_entry+0xb5/0xc0
[  280.230860]  ? trace_hardirqs_off_caller+0xbb/0x310
[  280.235876]  ? trace_hardirqs_off_caller+0xbb/0x310
[  280.240910]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  280.245755]  ? trace_hardirqs_on_caller+0x310/0x310
[  280.250769]  ? trace_hardirqs_on_caller+0x310/0x310
[  280.255782]  ? task_prio+0x50/0x50
[  280.259320]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.264856]  ? check_preemption_disabled+0x48/0x280
[  280.269890]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  280.274736]  apic_timer_interrupt+0xf/0x20
[  280.278984]  </IRQ>
[  280.281223] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  280.286423] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  280.305373] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  280.313082] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  280.320350] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  280.327614] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  280.334886] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  280.342152] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  280.349454]  retint_kernel+0x1b/0x2d
[  280.353171] RIP: 0010:dump_stack+0x358/0x39d
[  280.357577] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  280.376477] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  280.384201] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  280.391466] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  280.398752] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  280.406026] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  280.413295] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  280.420581]  ? dump_stack+0x34f/0x39d
[  280.424396]  ? dump_stack_print_info.cold.1+0x20/0x20
[  280.429590]  ? mark_held_locks+0x130/0x130
[  280.433825]  ? mark_held_locks+0x130/0x130
[  280.438080]  dump_header+0x27b/0xf72
[  280.441824]  ? pagefault_out_of_memory+0x197/0x197
[  280.446780]  ? __lock_acquire+0x62f/0x4c20
[  280.451026]  ? print_usage_bug+0xc0/0xc0
[  280.455096]  ? zap_class+0x640/0x640
[  280.458829]  ? print_usage_bug+0xc0/0xc0
[  280.462892]  ? print_usage_bug+0xc0/0xc0
[  280.466960]  ? print_usage_bug+0xc0/0xc0
[  280.471044]  ? find_held_lock+0x36/0x1c0
[  280.475130]  ? mark_held_locks+0xc7/0x130
[  280.479283]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  280.484401]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  280.489524]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  280.494125]  ? trace_hardirqs_on+0xbd/0x310
[  280.498452]  ? kasan_check_read+0x11/0x20
[  280.502605]  ? ___ratelimit+0x3b4/0x672
[  280.506591]  ? trace_hardirqs_off_caller+0x310/0x310
[  280.511697]  ? trace_hardirqs_on+0x310/0x310
[  280.516139]  ? lock_downgrade+0x900/0x900
[  280.520297]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  280.525403]  ? ___ratelimit+0x3b9/0x672
[  280.529382]  ? idr_get_free+0xf70/0xf70
[  280.533373]  ? kasan_check_read+0x11/0x20
[  280.537522]  ? do_raw_spin_unlock+0xa7/0x330
[  280.541940]  oom_kill_process.cold.27+0x10/0x903
[  280.546715]  ? zap_class+0x640/0x640
[  280.550444]  ? _raw_spin_unlock+0x2c/0x50
[  280.554609]  ? oom_badness+0xe6/0xaa0
[  280.558434]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  280.563369]  ? kasan_check_read+0x11/0x20
[  280.567534]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  280.572813]  ? oom_evaluate_task+0x540/0x540
[  280.577243]  ? find_held_lock+0x36/0x1c0
[  280.581314]  ? out_of_memory+0x974/0x1430
[  280.585464]  ? lock_downgrade+0x900/0x900
[  280.589702]  ? check_preemption_disabled+0x48/0x280
[  280.594743]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  280.599705]  ? kasan_check_read+0x11/0x20
[  280.603873]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  280.609152]  ? rcu_softirq_qs+0x20/0x20
[  280.613152]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  280.618812]  ? oom_evaluate_task+0x302/0x540
[  280.623397]  out_of_memory+0xa84/0x1430
[  280.627382]  ? oom_killer_disable+0x3a0/0x3a0
[  280.631883]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  280.636818]  ? __ww_mutex_check_waiters+0x160/0x160
[  280.641864]  __alloc_pages_slowpath+0x232c/0x2de0
[  280.646748]  ? warn_alloc+0x120/0x120
[  280.650551]  ? mark_held_locks+0x130/0x130
[  280.654808]  ? find_get_entry+0xaae/0x1120
[  280.659087]  ? filemap_map_pages+0x1a20/0x1a20
[  280.663675]  ? zap_class+0x640/0x640
[  280.667396]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.672937]  ? check_preemption_disabled+0x48/0x280
[  280.677957]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  280.683500]  ? should_fail+0x22d/0xd01
[  280.687393]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  280.692500]  ? zap_class+0x640/0x640
[  280.696241]  ? __lock_is_held+0xb5/0x140
[  280.700327]  ? mark_held_locks+0x130/0x130
[  280.704567]  ? lock_release+0xa00/0xa00
[  280.708541]  ? perf_trace_sched_process_exec+0x860/0x860
[  280.713987]  ? xa_load+0x2ba/0x460
[  280.717560]  ? lock_downgrade+0x900/0x900
[  280.721731]  ? __might_sleep+0x95/0x190
[  280.725709]  __alloc_pages_nodemask+0xad8/0xea0
[  280.730383]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  280.735418]  ? __page_cache_alloc+0x191/0x5c0
[  280.739908]  ? xa_load+0x2e1/0x460
[  280.743447]  ? xa_clear_mark+0x40/0x40
[  280.747335]  ? zap_class+0x640/0x640
[  280.751085]  ? zap_class+0x640/0x640
[  280.755303]  ? zap_class+0x640/0x640
[  280.759015]  ? __do_page_cache_readahead+0x663/0x810
[  280.764119]  ? find_held_lock+0x36/0x1c0
[  280.768201]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  280.773746]  alloc_pages_current+0x173/0x350
[  280.778172]  __page_cache_alloc+0x38c/0x5c0
[  280.782490]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  280.787439]  ? kasan_check_read+0x11/0x20
[  280.791589]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  280.796884]  ? generic_perform_write+0x6a0/0x6a0
[  280.801650]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  280.807194]  ? check_preemption_disabled+0x48/0x280
[  280.812232]  filemap_fault+0x1595/0x25f0
[  280.816303]  ? __lock_page_or_retry+0xa00/0xa00
[  280.820991]  ? mark_held_locks+0x130/0x130
[  280.825233]  ? filemap_map_pages+0xd6b/0x1a20
[  280.829733]  ? lock_downgrade+0x900/0x900
[  280.833882]  ? check_preemption_disabled+0x48/0x280
[  280.838902]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  280.843850]  ? kasan_check_read+0x11/0x20
[  280.847997]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  280.853274]  ? rcu_softirq_qs+0x20/0x20
[  280.857260]  ? filemap_map_pages+0xd92/0x1a20
[  280.861770]  ? find_get_entries_tag+0x1400/0x1400
[  280.866616]  ? debug_object_destroy+0x2b0/0x2b0
[  280.871327]  ? lock_pi_update_atomic+0x150/0x150
[  280.876082]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.881632]  ? lock_acquire+0x1ed/0x520
[  280.885614]  ? ext4_filemap_fault+0x7a/0xad
[  280.890000]  ? lock_release+0xa00/0xa00
[  280.893977]  ? perf_trace_sched_process_exec+0x860/0x860
[  280.899433]  ? print_usage_bug+0xc0/0xc0
[  280.903498]  ? print_usage_bug+0xc0/0xc0
[  280.907582]  ? down_read+0x8d/0x120
[  280.911223]  ? ext4_filemap_fault+0x7a/0xad
[  280.915543]  ? __down_interruptible+0x700/0x700
[  280.920240]  ext4_filemap_fault+0x82/0xad
[  280.924387]  __do_fault+0x100/0x6b0
[  280.928018]  ? pmd_devmap_trans_unstable+0x220/0x220
[  280.933127]  ? mark_held_locks+0x130/0x130
[  280.937369]  ? mark_held_locks+0x130/0x130
[  280.941603]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  280.946373]  ? retint_kernel+0x2d/0x2d
[  280.950282]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  280.955828]  __handle_mm_fault+0x3ea0/0x5be0
[  280.960235]  ? perf_trace_lock+0x7a0/0x7a0
[  280.964492]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  280.969341]  ? __switch_to_asm+0x34/0x70
[  280.973398]  ? __switch_to_asm+0x34/0x70
[  280.977531]  ? zap_class+0x640/0x640
[  280.981248]  ? zap_class+0x640/0x640
[  280.984960]  ? __x64_sys_futex+0x53e/0x6a0
[  280.989202]  ? find_held_lock+0x36/0x1c0
[  280.993274]  ? handle_mm_fault+0x42a/0xc70
[  280.997511]  ? lock_downgrade+0x900/0x900
[  281.001678]  ? check_preemption_disabled+0x48/0x280
[  281.006717]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  281.011653]  ? kasan_check_read+0x11/0x20
[  281.015802]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  281.021084]  ? rcu_softirq_qs+0x20/0x20
[  281.025059]  ? trace_hardirqs_off_caller+0x310/0x310
[  281.030168]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  281.035724]  ? check_preemption_disabled+0x48/0x280
[  281.040752]  handle_mm_fault+0x54f/0xc70
[  281.044822]  ? __handle_mm_fault+0x5be0/0x5be0
[  281.049409]  ? find_vma+0x34/0x190
[  281.052969]  __do_page_fault+0x5e8/0xe60
[  281.057030]  ? trace_hardirqs_off+0xb8/0x310
[  281.061467]  do_page_fault+0xf2/0x7e0
[  281.065271]  ? vmalloc_sync_all+0x30/0x30
[  281.069421]  ? error_entry+0x70/0xd0
[  281.073139]  ? trace_hardirqs_off_caller+0xbb/0x310
[  281.078162]  ? trace_hardirqs_on_caller+0xc0/0x310
[  281.083110]  ? syscall_return_slowpath+0x5e0/0x5e0
[  281.088054]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  281.092899]  ? trace_hardirqs_on_caller+0x310/0x310
[  281.097918]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  281.103374]  ? prepare_exit_to_usermode+0x291/0x3b0
[  281.108392]  ? page_fault+0x8/0x30
[  281.111937]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  281.116786]  ? page_fault+0x8/0x30
[  281.120332]  page_fault+0x1e/0x30
[  281.123809] RIP: 0033:0x4290d7
[  281.127015] Code: Bad RIP value.
[  281.130375] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  281.135750] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  281.143017] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  281.150293] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  281.157558] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  281.164854] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  281.172160] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  281.172247] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  281.179446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  281.179455] Call Trace:
[  281.186015] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  281.195274]  <IRQ>
[  281.197842] syz-fuzzer cpuset=/ mems_allowed=0
[  281.208090]  dump_stack+0x244/0x39d
[  281.218408]  ? dump_stack_print_info.cold.1+0x20/0x20
[  281.223609]  warn_alloc.cold.116+0xb7/0x1bd
[  281.227942]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  281.232790]  ? lock_downgrade+0x900/0x900
[  281.236946]  ? trace_hardirqs_off+0xb8/0x310
[  281.241361]  ? trace_hardirqs_off+0xb8/0x310
[  281.245778]  __alloc_pages_slowpath+0x2651/0x2de0
[  281.250664]  ? warn_alloc+0x120/0x120
[  281.254468]  ? print_usage_bug+0xc0/0xc0
[  281.258528]  ? warn_alloc+0x120/0x120
[  281.262330]  ? warn_alloc+0x120/0x120
[  281.266129]  ? print_usage_bug+0xc0/0xc0
[  281.270196]  ? print_usage_bug+0xc0/0xc0
[  281.274262]  ? __lock_acquire+0x62f/0x4c20
[  281.278504]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  281.284044]  ? should_fail+0x22d/0xd01
[  281.287952]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  281.293060]  ? __lock_acquire+0x62f/0x4c20
[  281.297298]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  281.302396]  ? __lock_acquire+0x62f/0x4c20
[  281.306627]  ? should_fail+0x22d/0xd01
[  281.310529]  ? find_held_lock+0x36/0x1c0
[  281.314598]  ? mark_held_locks+0x130/0x130
[  281.318840]  ? mark_held_locks+0x130/0x130
[  281.323091]  ? zap_class+0x640/0x640
[  281.326806]  ? zap_class+0x640/0x640
[  281.330519]  ? print_usage_bug+0xc0/0xc0
[  281.334574]  ? do_raw_spin_unlock+0xa7/0x330
[  281.338984]  ? zap_class+0x640/0x640
[  281.342725]  ? print_usage_bug+0xc0/0xc0
[  281.346920]  ? wq_watchdog_touch+0x9c/0xfe
[  281.351155]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.356720]  ? check_preemption_disabled+0x48/0x280
[  281.361759]  ? __lock_is_held+0xb5/0x140
[  281.365825]  __alloc_pages_nodemask+0xad8/0xea0
[  281.370523]  ? zap_class+0x640/0x640
[  281.374240]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  281.379270]  ? find_held_lock+0x36/0x1c0
[  281.383341]  ? ____cache_alloc_node+0x1c7/0x1e0
[  281.388013]  ? lock_downgrade+0x900/0x900
[  281.392166]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.397708]  cache_grow_begin+0xa5/0x8c0
[  281.401772]  ? do_raw_spin_unlock+0xa7/0x330
[  281.406188]  fallback_alloc+0x204/0x2e0
[  281.410170]  ____cache_alloc_node+0x1c7/0x1e0
[  281.414685]  kmem_cache_alloc_node+0xe3/0x730
[  281.419182]  ? ipv6_get_ifaddr+0x42e/0x620
[  281.423426]  __alloc_skb+0x119/0x770
[  281.427138]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  281.432419]  ? netdev_alloc_frag+0x1f0/0x1f0
[  281.436826]  ? lock_downgrade+0x900/0x900
[  281.440982]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.446519]  ? refcount_sub_and_test_checked+0x203/0x310
[  281.451974]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  281.457437]  ? addrconf_rs_timer+0x690/0x690
[  281.461858]  ndisc_alloc_skb+0x144/0x340
[  281.465936]  ndisc_send_rs+0x331/0x6e0
[  281.469829]  addrconf_rs_timer+0x314/0x690
[  281.474087]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  281.478359]  call_timer_fn+0x272/0x920
[  281.482252]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  281.486486]  ? process_timeout+0x40/0x40
[  281.490553]  ? __run_timers+0x7da/0xc70
[  281.494527]  ? _raw_spin_unlock_irq+0x27/0x80
[  281.499031]  ? _raw_spin_unlock_irq+0x27/0x80
[  281.503553]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  281.507789]  ? lockdep_hardirqs_on+0x296/0x5b0
[  281.512373]  ? trace_hardirqs_on+0xbd/0x310
[  281.516722]  ? kasan_check_read+0x11/0x20
[  281.520881]  ? __run_timers+0x7da/0xc70
[  281.524853]  ? trace_hardirqs_off_caller+0x310/0x310
[  281.529975]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  281.534210]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  281.538444]  __run_timers+0x7e5/0xc70
[  281.542255]  ? timer_fixup_init+0x70/0x70
[  281.546411]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  281.551426]  ? zap_class+0x640/0x640
[  281.555142]  ? enqueue_hrtimer+0x1a5/0x560
[  281.559379]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  281.564577]  ? find_held_lock+0x36/0x1c0
[  281.568647]  ? zap_class+0x640/0x640
[  281.572366]  ? pvclock_read_flags+0x160/0x160
[  281.576866]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.582403]  ? check_preemption_disabled+0x48/0x280
[  281.587432]  ? __lock_is_held+0xb5/0x140
[  281.591496]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.597065]  ? check_preemption_disabled+0x48/0x280
[  281.602082]  run_timer_softirq+0x52/0xb0
[  281.606139]  ? rcu_read_lock_sched_held+0x14f/0x180
[  281.611171]  __do_softirq+0x308/0xb7e
[  281.614976]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  281.619485]  ? lock_downgrade+0x900/0x900
[  281.623645]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  281.628764]  ? pvclock_read_flags+0x160/0x160
[  281.633296]  ? lapic_next_event+0x5a/0x90
[  281.637446]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.642987]  ? kvm_clock_read+0x18/0x30
[  281.646977]  ? kvm_sched_clock_read+0x9/0x20
[  281.651401]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.656955]  ? check_preemption_disabled+0x48/0x280
[  281.661989]  irq_exit+0x17f/0x1c0
[  281.665443]  smp_apic_timer_interrupt+0x1cb/0x760
[  281.670284]  ? smp_reschedule_interrupt+0x109/0x650
[  281.675301]  ? smp_call_function_single_interrupt+0x650/0x650
[  281.681183]  ? interrupt_entry+0xb5/0xc0
[  281.685272]  ? trace_hardirqs_off_caller+0xbb/0x310
[  281.690300]  ? trace_hardirqs_off_caller+0xbb/0x310
[  281.695317]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  281.700177]  ? trace_hardirqs_on_caller+0x310/0x310
[  281.705190]  ? trace_hardirqs_on_caller+0x310/0x310
[  281.710204]  ? task_prio+0x50/0x50
[  281.713750]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.719297]  ? check_preemption_disabled+0x48/0x280
[  281.724334]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  281.729187]  apic_timer_interrupt+0xf/0x20
[  281.733415]  </IRQ>
[  281.735663] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  281.740594] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  281.759513] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  281.767219] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  281.774482] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  281.781762] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  281.789045] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  281.796354] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  281.803675]  skb_clone+0x1bb/0x500
[  281.807235]  ? skb_split+0x11e0/0x11e0
[  281.811127]  ? preempt_notifier_register+0x200/0x200
[  281.816225]  ? __switch_to_asm+0x34/0x70
[  281.820285]  ? __switch_to_asm+0x34/0x70
[  281.824342]  ? __switch_to_asm+0x40/0x70
[  281.828401]  ? __switch_to_asm+0x34/0x70
[  281.832478]  ? __switch_to_asm+0x40/0x70
[  281.836551]  ? __switch_to_asm+0x40/0x70
[  281.840610]  ? __switch_to_asm+0x34/0x70
[  281.844695]  ? __switch_to_asm+0x34/0x70
[  281.848784]  ? __switch_to_asm+0x40/0x70
[  281.852843]  ? __switch_to_asm+0x34/0x70
[  281.856907]  bpf_clone_redirect+0xb9/0x490
[  281.861165]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  281.866186]  ? __sched_text_start+0x8/0x8
[  281.870335]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  281.874916]  ? retint_kernel+0x2d/0x2d
[  281.878802]  ? trace_hardirqs_on_caller+0xc0/0x310
[  281.883749]  ? find_held_lock+0x36/0x1c0
[  281.887821]  ? lock_acquire+0x1ed/0x520
[  281.891809]  ? bpf_test_run+0x3cb/0x780
[  281.895782]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.901330]  ? check_preemption_disabled+0x48/0x280
[  281.906350]  ? kasan_check_read+0x11/0x20
[  281.910498]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  281.915774]  ? rcu_softirq_qs+0x20/0x20
[  281.919750]  ? preempt_schedule+0x4d/0x60
[  281.923901]  ? ___preempt_schedule+0x16/0x18
[  281.928320]  ? bpf_test_run+0x25d/0x780
[  281.932309]  ? netlink_diag_dump+0x2a0/0x2a0
[  281.936721]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  281.942257]  ? bpf_test_init.isra.10+0x70/0x100
[  281.946932]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  281.951705]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  281.956547]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  281.962083]  ? fput+0x130/0x1a0
[  281.965366]  ? __bpf_prog_get+0x9b/0x290
[  281.969431]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  281.974283]  ? bpf_prog_test_run+0x130/0x1a0
[  281.978714]  ? __x64_sys_bpf+0x3db/0x520
[  281.982776]  ? bpf_prog_get+0x20/0x20
[  281.986628]  ? do_syscall_64+0x1b9/0x820
[  281.990699]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  281.996066]  ? syscall_return_slowpath+0x5e0/0x5e0
[  282.000995]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  282.005840]  ? trace_hardirqs_on_caller+0x310/0x310
[  282.010857]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  282.015873]  ? prepare_exit_to_usermode+0x291/0x3b0
[  282.020894]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  282.025754]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  282.031139] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  282.031145] warn_alloc_show_mem: 1 callbacks suppressed
[  282.031151] Mem-Info:
[  282.038182] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  282.043549] active_anon:57128 inactive_anon:971 isolated_anon:0
[  282.043549]  active_file:40 inactive_file:20 isolated_file:0
[  282.043549]  unevictable:0 dirty:11 writeback:0 unstable:0
[  282.043549]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  282.043549]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  282.043549]  free:13615 free_pcp:64 free_cma:0
[  282.045925] Call Trace:
[  282.055314] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  282.088347]  <IRQ>
[  282.090915] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  282.118841]  dump_stack+0x244/0x39d
[  282.120990] lowmem_reserve[]: 0 2818 6321 6321
[  282.147096]  ? dump_stack_print_info.cold.1+0x20/0x20
[  282.150703] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  282.155303]  warn_alloc.cold.116+0xb7/0x1bd
[  282.160476] lowmem_reserve[]: 0 0 3503 3503
[  282.188011]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  282.192310] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  282.196625]  ? lock_downgrade+0x900/0x900
[  282.201463] lowmem_reserve[]: 0 0 0 0
[  282.230610]  ? trace_hardirqs_off+0xb8/0x310
[  282.234730] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  282.238524]  ? trace_hardirqs_off+0xb8/0x310
[  282.242903] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  282.256435]  __alloc_pages_slowpath+0x2651/0x2de0
[  282.260815] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  282.275914]  ? warn_alloc+0x120/0x120
[  282.280718] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  282.296226]  ? print_usage_bug+0xc0/0xc0
[  282.300007] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  282.308829]  ? warn_alloc+0x120/0x120
[  282.312871] 5171 total pagecache pages
[  282.321437]  ? warn_alloc+0x120/0x120
[  282.325222] 0 pages in swap cache
[  282.329112]  ? print_usage_bug+0xc0/0xc0
[  282.332894] Swap cache stats: add 0, delete 0, find 0/0
[  282.336340]  ? kvm_clock_read+0x18/0x30
[  282.340375] Free swap  = 0kB
[  282.345733]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  282.349685] Total swap = 0kB
[  282.352709]  ? print_usage_bug+0xc0/0xc0
[  282.357719] 1965979 pages RAM
[  282.360744]  ? __lock_acquire+0x62f/0x4c20
[  282.364779] 0 pages HighMem/MovableOnly
[  282.367886]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  282.372093] 342854 pages reserved
[  282.376062]  ? should_fail+0x22d/0xd01
[  282.381571] 0 pages cma reserved
[  282.385018]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  282.388945] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  282.392238]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  282.392252]  ? __lock_acquire+0x62f/0x4c20
[  282.392269]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  282.397592] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  282.404030]  ? __lock_acquire+0x62f/0x4c20
[  282.409123] syz-executor2 cpuset=syz2 mems_allowed=0
[  282.413380]  ? should_fail+0x22d/0xd01
[  282.442116]  ? rcu_irq_exit+0x1a2/0x390
[  282.446101]  ? mark_held_locks+0x130/0x130
[  282.450342]  ? mark_held_locks+0x130/0x130
[  282.454585]  ? mark_held_locks+0xc7/0x130
[  282.458732]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  282.463749]  ? zap_class+0x640/0x640
[  282.467477]  ? print_usage_bug+0xc0/0xc0
[  282.471539]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.477079]  ? check_preemption_disabled+0x48/0x280
[  282.482116]  ? __lock_is_held+0xb5/0x140
[  282.486185]  __alloc_pages_nodemask+0xad8/0xea0
[  282.490856]  ? zap_class+0x640/0x640
[  282.494574]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  282.499603]  ? find_held_lock+0x36/0x1c0
[  282.503714]  ? ____cache_alloc_node+0x1c7/0x1e0
[  282.508395]  ? lock_downgrade+0x900/0x900
[  282.512547]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.518088]  cache_grow_begin+0xa5/0x8c0
[  282.522152]  ? do_raw_spin_unlock+0xa7/0x330
[  282.526574]  fallback_alloc+0x204/0x2e0
[  282.530558]  ____cache_alloc_node+0x1c7/0x1e0
[  282.535064]  kmem_cache_alloc_node+0xe3/0x730
[  282.539596]  ? ipv6_get_ifaddr+0x42e/0x620
[  282.543839]  __alloc_skb+0x119/0x770
[  282.547550]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  282.552847]  ? netdev_alloc_frag+0x1f0/0x1f0
[  282.557253]  ? lock_downgrade+0x900/0x900
[  282.561407]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.566960]  ? refcount_sub_and_test_checked+0x203/0x310
[  282.572420]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  282.577884]  ? addrconf_rs_timer+0x690/0x690
[  282.582309]  ndisc_alloc_skb+0x144/0x340
[  282.586391]  ndisc_send_rs+0x331/0x6e0
[  282.590284]  addrconf_rs_timer+0x314/0x690
[  282.594527]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.598775]  call_timer_fn+0x272/0x920
[  282.602666]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.606906]  ? process_timeout+0x40/0x40
[  282.610981]  ? mark_held_locks+0xc7/0x130
[  282.615132]  ? _raw_spin_unlock_irq+0x27/0x80
[  282.619629]  ? _raw_spin_unlock_irq+0x27/0x80
[  282.624139]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.628406]  ? lockdep_hardirqs_on+0x296/0x5b0
[  282.632989]  ? trace_hardirqs_on+0xbd/0x310
[  282.637310]  ? kasan_check_read+0x11/0x20
[  282.641456]  ? __run_timers+0x7da/0xc70
[  282.645436]  ? trace_hardirqs_off_caller+0x310/0x310
[  282.650554]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.654791]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.659021]  __run_timers+0x7e5/0xc70
[  282.662861]  ? timer_fixup_init+0x70/0x70
[  282.667010]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  282.672056]  ? zap_class+0x640/0x640
[  282.675783]  ? print_usage_bug+0xc0/0xc0
[  282.679846]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  282.685044]  ? find_held_lock+0x36/0x1c0
[  282.689141]  ? zap_class+0x640/0x640
[  282.692868]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.698419]  ? check_preemption_disabled+0x48/0x280
[  282.703469]  ? __lock_is_held+0xb5/0x140
[  282.707533]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.713068]  ? check_preemption_disabled+0x48/0x280
[  282.718088]  run_timer_softirq+0x52/0xb0
[  282.722154]  ? rcu_read_lock_sched_held+0x14f/0x180
[  282.727182]  __do_softirq+0x308/0xb7e
[  282.731015]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  282.735508]  ? lock_downgrade+0x900/0x900
[  282.739680]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  282.744792]  ? pvclock_read_flags+0x160/0x160
[  282.749290]  ? lapic_next_event+0x5a/0x90
[  282.753441]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.758984]  ? kvm_clock_read+0x18/0x30
[  282.762959]  ? kvm_sched_clock_read+0x9/0x20
[  282.767373]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.772911]  ? check_preemption_disabled+0x48/0x280
[  282.777968]  irq_exit+0x17f/0x1c0
[  282.781426]  smp_apic_timer_interrupt+0x1cb/0x760
[  282.786269]  ? smp_reschedule_interrupt+0x109/0x650
[  282.791286]  ? smp_call_function_single_interrupt+0x650/0x650
[  282.797187]  ? interrupt_entry+0xb5/0xc0
[  282.801272]  ? trace_hardirqs_off_caller+0xbb/0x310
[  282.806291]  ? trace_hardirqs_off_caller+0xbb/0x310
[  282.811308]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  282.816173]  ? trace_hardirqs_on_caller+0x310/0x310
[  282.821208]  ? trace_hardirqs_on_caller+0x310/0x310
[  282.826251]  ? task_prio+0x50/0x50
[  282.829791]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.835331]  ? check_preemption_disabled+0x48/0x280
[  282.840352]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  282.845204]  apic_timer_interrupt+0xf/0x20
[  282.849435]  </IRQ>
[  282.851677] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  282.856871] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  282.875772] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  282.883497] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  282.890781] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  282.898049] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  282.905313] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  282.912578] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  282.919870]  retint_kernel+0x1b/0x2d
[  282.923603] RIP: 0010:dump_stack+0x358/0x39d
[  282.928016] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  282.946924] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  282.954644] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  282.961909] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  282.969190] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  282.976467] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  282.983747] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  282.991075]  ? dump_stack+0x34f/0x39d
[  282.994888]  ? dump_stack_print_info.cold.1+0x20/0x20
[  283.000082]  ? mark_held_locks+0x130/0x130
[  283.004314]  ? mark_held_locks+0x130/0x130
[  283.008563]  dump_header+0x27b/0xf72
[  283.012302]  ? pagefault_out_of_memory+0x197/0x197
[  283.017242]  ? __lock_acquire+0x62f/0x4c20
[  283.021483]  ? print_usage_bug+0xc0/0xc0
[  283.025548]  ? zap_class+0x640/0x640
[  283.029276]  ? print_usage_bug+0xc0/0xc0
[  283.033368]  ? print_usage_bug+0xc0/0xc0
[  283.037432]  ? print_usage_bug+0xc0/0xc0
[  283.041502]  ? find_held_lock+0x36/0x1c0
[  283.045572]  ? mark_held_locks+0xc7/0x130
[  283.049734]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  283.054836]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  283.059941]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  283.064539]  ? trace_hardirqs_on+0xbd/0x310
[  283.068893]  ? kasan_check_read+0x11/0x20
[  283.073057]  ? ___ratelimit+0x3b4/0x672
[  283.077036]  ? trace_hardirqs_off_caller+0x310/0x310
[  283.082139]  ? trace_hardirqs_on+0x310/0x310
[  283.086554]  ? lock_downgrade+0x900/0x900
[  283.090726]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  283.095834]  ? ___ratelimit+0x3b9/0x672
[  283.099815]  ? idr_get_free+0xf70/0xf70
[  283.103786]  ? kasan_check_read+0x11/0x20
[  283.107935]  ? do_raw_spin_unlock+0xa7/0x330
[  283.112355]  oom_kill_process.cold.27+0x10/0x903
[  283.117114]  ? zap_class+0x640/0x640
[  283.120848]  ? _raw_spin_unlock+0x2c/0x50
[  283.124996]  ? oom_badness+0xe6/0xaa0
[  283.128809]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  283.133756]  ? kasan_check_read+0x11/0x20
[  283.137905]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  283.143188]  ? oom_evaluate_task+0x540/0x540
[  283.147611]  ? find_held_lock+0x36/0x1c0
[  283.151701]  ? out_of_memory+0x974/0x1430
[  283.155866]  ? lock_downgrade+0x900/0x900
[  283.160032]  ? check_preemption_disabled+0x48/0x280
[  283.165051]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  283.169997]  ? kasan_check_read+0x11/0x20
[  283.174157]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  283.179435]  ? rcu_softirq_qs+0x20/0x20
[  283.183415]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  283.188952]  ? oom_evaluate_task+0x302/0x540
[  283.193375]  out_of_memory+0xa84/0x1430
[  283.197357]  ? oom_killer_disable+0x3a0/0x3a0
[  283.201853]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  283.206790]  ? __ww_mutex_check_waiters+0x160/0x160
[  283.211823]  __alloc_pages_slowpath+0x232c/0x2de0
[  283.216714]  ? warn_alloc+0x120/0x120
[  283.220520]  ? mark_held_locks+0x130/0x130
[  283.224764]  ? find_get_entry+0xaae/0x1120
[  283.229007]  ? filemap_map_pages+0x1a20/0x1a20
[  283.233597]  ? zap_class+0x640/0x640
[  283.237313]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.242854]  ? check_preemption_disabled+0x48/0x280
[  283.247874]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  283.253414]  ? should_fail+0x22d/0xd01
[  283.257317]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  283.262436]  ? zap_class+0x640/0x640
[  283.266179]  ? __lock_is_held+0xb5/0x140
[  283.270263]  ? mark_held_locks+0x130/0x130
[  283.274533]  ? lock_release+0xa00/0xa00
[  283.278510]  ? perf_trace_sched_process_exec+0x860/0x860
[  283.283957]  ? xa_load+0x2ba/0x460
[  283.287518]  ? lock_downgrade+0x900/0x900
[  283.291688]  ? __might_sleep+0x95/0x190
[  283.295676]  __alloc_pages_nodemask+0xad8/0xea0
[  283.300353]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  283.305377]  ? __page_cache_alloc+0x191/0x5c0
[  283.309874]  ? xa_load+0x2e1/0x460
[  283.313413]  ? xa_clear_mark+0x40/0x40
[  283.317306]  ? zap_class+0x640/0x640
[  283.321035]  ? zap_class+0x640/0x640
[  283.324754]  ? zap_class+0x640/0x640
[  283.328470]  ? __do_page_cache_readahead+0x663/0x810
[  283.333581]  ? find_held_lock+0x36/0x1c0
[  283.337654]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  283.343204]  alloc_pages_current+0x173/0x350
[  283.347648]  __page_cache_alloc+0x38c/0x5c0
[  283.351966]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  283.356896]  ? kasan_check_read+0x11/0x20
[  283.361050]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  283.366331]  ? generic_perform_write+0x6a0/0x6a0
[  283.371100]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  283.376703]  ? check_preemption_disabled+0x48/0x280
[  283.381733]  filemap_fault+0x1595/0x25f0
[  283.385806]  ? __lock_page_or_retry+0xa00/0xa00
[  283.390477]  ? mark_held_locks+0x130/0x130
[  283.394741]  ? filemap_map_pages+0xd6b/0x1a20
[  283.399254]  ? lock_downgrade+0x900/0x900
[  283.403400]  ? check_preemption_disabled+0x48/0x280
[  283.408422]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  283.413349]  ? kasan_check_read+0x11/0x20
[  283.417495]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  283.422774]  ? rcu_softirq_qs+0x20/0x20
[  283.426765]  ? filemap_map_pages+0xd92/0x1a20
[  283.431275]  ? find_get_entries_tag+0x1400/0x1400
[  283.436119]  ? debug_object_destroy+0x2b0/0x2b0
[  283.440810]  ? lock_pi_update_atomic+0x150/0x150
[  283.445563]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.451116]  ? lock_acquire+0x1ed/0x520
[  283.455089]  ? ext4_filemap_fault+0x7a/0xad
[  283.459425]  ? lock_release+0xa00/0xa00
[  283.463408]  ? perf_trace_sched_process_exec+0x860/0x860
[  283.468864]  ? print_usage_bug+0xc0/0xc0
[  283.472925]  ? print_usage_bug+0xc0/0xc0
[  283.476998]  ? down_read+0x8d/0x120
[  283.480660]  ? ext4_filemap_fault+0x7a/0xad
[  283.484984]  ? __down_interruptible+0x700/0x700
[  283.489670]  ext4_filemap_fault+0x82/0xad
[  283.493835]  __do_fault+0x100/0x6b0
[  283.497468]  ? pmd_devmap_trans_unstable+0x220/0x220
[  283.502578]  ? mark_held_locks+0x130/0x130
[  283.506819]  ? mark_held_locks+0x130/0x130
[  283.511054]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  283.515818]  ? retint_kernel+0x2d/0x2d
[  283.519727]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  283.525269]  __handle_mm_fault+0x3ea0/0x5be0
[  283.529678]  ? perf_trace_lock+0x7a0/0x7a0
[  283.533921]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  283.538773]  ? __switch_to_asm+0x34/0x70
[  283.542837]  ? __switch_to_asm+0x34/0x70
[  283.546914]  ? zap_class+0x640/0x640
[  283.550642]  ? zap_class+0x640/0x640
[  283.554355]  ? __x64_sys_futex+0x53e/0x6a0
[  283.558608]  ? find_held_lock+0x36/0x1c0
[  283.562690]  ? handle_mm_fault+0x42a/0xc70
[  283.566931]  ? lock_downgrade+0x900/0x900
[  283.571078]  ? check_preemption_disabled+0x48/0x280
[  283.576113]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  283.581045]  ? kasan_check_read+0x11/0x20
[  283.585193]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  283.590469]  ? rcu_softirq_qs+0x20/0x20
[  283.594445]  ? trace_hardirqs_off_caller+0x310/0x310
[  283.599562]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  283.605099]  ? check_preemption_disabled+0x48/0x280
[  283.610118]  handle_mm_fault+0x54f/0xc70
[  283.614187]  ? __handle_mm_fault+0x5be0/0x5be0
[  283.618778]  ? find_vma+0x34/0x190
[  283.622322]  __do_page_fault+0x5e8/0xe60
[  283.626382]  ? trace_hardirqs_off+0xb8/0x310
[  283.630815]  do_page_fault+0xf2/0x7e0
[  283.634618]  ? vmalloc_sync_all+0x30/0x30
[  283.638790]  ? error_entry+0x70/0xd0
[  283.642504]  ? trace_hardirqs_off_caller+0xbb/0x310
[  283.647532]  ? trace_hardirqs_on_caller+0xc0/0x310
[  283.652459]  ? syscall_return_slowpath+0x5e0/0x5e0
[  283.657390]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  283.662233]  ? trace_hardirqs_on_caller+0x310/0x310
[  283.667250]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  283.672706]  ? prepare_exit_to_usermode+0x291/0x3b0
[  283.677720]  ? page_fault+0x8/0x30
[  283.681260]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  283.686116]  ? page_fault+0x8/0x30
[  283.689659]  page_fault+0x1e/0x30
[  283.693113] RIP: 0033:0x4290d7
[  283.696317] Code: Bad RIP value.
[  283.699683] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  283.705060] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  283.712321] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  283.719586] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  283.726854] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  283.734120] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  283.741410] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  283.741451] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[  283.748729] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  283.754958] rcu: 	(detected by 1, t=10503 jiffies, g=12641, q=380)
[  283.764300] Call Trace:
[  283.770615] rcu: All QSes seen, last rcu_preempt kthread activity 10501 (4294965529-4294955028), jiffies_till_next_fqs=1, root ->qsmask 0x0
[  283.773187]  <IRQ>
[  283.785839] syz-fuzzer      R  running task     8520  6021   6017 0x80000008
[  283.787989]  dump_stack+0x244/0x39d
[  283.795149] Call Trace:
[  283.798772]  ? dump_stack_print_info.cold.1+0x20/0x20
[  283.801345]  <IRQ>
[  283.806553]  warn_alloc.cold.116+0xb7/0x1bd
[  283.808696]  sched_show_task.cold.84+0x2b6/0x30a
[  283.813029]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  283.817779]  ? can_nice.part.74+0x20/0x20
[  283.822604]  ? lock_downgrade+0x900/0x900
[  283.826741]  ? vprintk_default+0x28/0x30
[  283.830875]  ? trace_hardirqs_off+0xb8/0x310
[  283.834919]  ? vprintk_func+0x85/0x181
[  283.839328]  ? trace_hardirqs_off+0xb8/0x310
[  283.843195]  ? vprintk_func+0x85/0x181
[  283.847607]  __alloc_pages_slowpath+0x2651/0x2de0
[  283.851477]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  283.856325]  ? warn_alloc+0x120/0x120
[  283.861044]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  283.864828]  ? print_usage_bug+0xc0/0xc0
[  283.869570]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.873609]  ? warn_alloc+0x120/0x120
[  283.879146]  print_other_cpu_stall.cold.66+0x7dd/0x8bb
[  283.882949]  ? warn_alloc+0x120/0x120
[  283.888223]  ? print_usage_bug+0xc0/0xc0
[  283.892009]  ? print_usage_bug+0xc0/0xc0
[  283.896055]  ? rcu_qs+0x110/0x110
[  283.900095]  ? print_usage_bug+0xc0/0xc0
[  283.903561]  ? zap_class+0x640/0x640
[  283.907595]  ? __lock_acquire+0x62f/0x4c20
[  283.911290]  ? print_usage_bug+0xc0/0xc0
[  283.915510]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  283.919553]  ? kasan_check_read+0x11/0x20
[  283.925078]  ? should_fail+0x22d/0xd01
[  283.929213]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.933090]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  283.938612]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.943698]  ? __lock_acquire+0x62f/0x4c20
[  283.949220]  ? do_trace_rcu_torture_read+0x10/0x10
[  283.953436]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  283.958350]  ? rcu_preempt_need_deferred_qs+0x74/0x1f0
[  283.963431]  ? __lock_acquire+0x62f/0x4c20
[  283.968689]  ? __lock_is_held+0xb5/0x140
[  283.972911]  ? should_fail+0x22d/0xd01
[  283.976957]  ? __rcu_read_lock+0x50/0x50
[  283.980834]  ? mark_held_locks+0x130/0x130
[  283.984875]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.989109]  ? mark_held_locks+0x130/0x130
[  283.994650]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.998873]  ? zap_class+0x640/0x640
[  284.004429]  ? check_preemption_disabled+0x48/0x280
[  284.008133]  ? zap_class+0x640/0x640
[  284.013131]  rcu_check_callbacks+0xfd7/0x13f0
[  284.016825]  ? print_usage_bug+0xc0/0xc0
[  284.021300]  ? rcutree_dead_cpu+0x10/0x10
[  284.025349]  ? wq_watchdog_touch+0x9c/0xfe
[  284.029483]  ? lock_downgrade+0x900/0x900
[  284.033721]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.037858]  ? lock_release+0x970/0xa00
[  284.043378]  ? check_preemption_disabled+0x48/0x280
[  284.047356]  ? zap_class+0x640/0x640
[  284.052356]  ? __lock_is_held+0xb5/0x140
[  284.056049]  ? mark_held_locks+0x130/0x130
[  284.060096]  __alloc_pages_nodemask+0xad8/0xea0
[  284.064315]  ? zap_class+0x640/0x640
[  284.069000]  ? zap_class+0x640/0x640
[  284.072699]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.076401]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  284.081922]  ? pvclock_gtod_notify+0x2e3/0x3e0
[  284.086932]  ? find_held_lock+0x36/0x1c0
[  284.091492]  ? kvm_set_tsc_khz+0x540/0x540
[  284.095559]  ? ____cache_alloc_node+0x1c7/0x1e0
[  284.099774]  ? warn_alloc.cold.116+0xd1/0x1bd
[  284.104429]  ? lock_downgrade+0x900/0x900
[  284.108911]  ? find_held_lock+0x36/0x1c0
[  284.113043]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.117091]  ? zap_class+0x640/0x640
[  284.122628]  cache_grow_begin+0xa5/0x8c0
[  284.126335]  ? timekeeping_advance+0x3cc/0xc00
[  284.130378]  ? do_raw_spin_unlock+0xa7/0x330
[  284.134946]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.139345]  fallback_alloc+0x204/0x2e0
[  284.144866]  ? check_preemption_disabled+0x48/0x280
[  284.148825]  ____cache_alloc_node+0x1c7/0x1e0
[  284.153849]  ? trace_hardirqs_off+0xb8/0x310
[  284.158339]  kmem_cache_alloc_node+0xe3/0x730
[  284.162729]  ? __lock_is_held+0xb5/0x140
[  284.167211]  ? ipv6_get_ifaddr+0x42e/0x620
[  284.171253]  ? trace_hardirqs_on+0x310/0x310
[  284.175478]  __alloc_skb+0x119/0x770
[  284.179865]  ? check_preemption_disabled+0x48/0x280
[  284.183565]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  284.188566]  ? raise_softirq+0x199/0x420
[  284.193826]  ? netdev_alloc_frag+0x1f0/0x1f0
[  284.197872]  ? raise_softirq_irqoff+0x2e0/0x2e0
[  284.202270]  ? lock_downgrade+0x900/0x900
[  284.206920]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.211063]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.216582]  ? check_preemption_disabled+0x48/0x280
[  284.222101]  ? refcount_sub_and_test_checked+0x203/0x310
[  284.227112]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  284.232547]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  284.238069]  ? hrtimer_run_queues+0x9a/0x400
[  284.243500]  ? addrconf_rs_timer+0x690/0x690
[  284.247893]  ? run_local_timers+0x19b/0x230
[  284.252295]  ndisc_alloc_skb+0x144/0x340
[  284.256591]  ? timer_clear_idle+0x90/0x90
[  284.260666]  ndisc_send_rs+0x331/0x6e0
[  284.264793]  ? debug_smp_processor_id+0x1c/0x20
[  284.268682]  addrconf_rs_timer+0x314/0x690
[  284.273343]  ? irqtime_account_process_tick.isra.6+0x114/0x490
[  284.277576]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.283537]  ? account_process_tick+0x282/0x350
[  284.287759]  call_timer_fn+0x272/0x920
[  284.292406]  update_process_times+0x2d/0x70
[  284.296274]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.300580]  tick_sched_handle+0x9f/0x180
[  284.304798]  ? process_timeout+0x40/0x40
[  284.308934]  tick_sched_timer+0x45/0x130
[  284.312999]  ? __run_timers+0x7da/0xc70
[  284.317038]  __hrtimer_run_queues+0x41c/0x10d0
[  284.321006]  ? _raw_spin_unlock_irq+0x27/0x80
[  284.325586]  ? tick_sched_do_timer+0x1a0/0x1a0
[  284.330063]  ? _raw_spin_unlock_irq+0x27/0x80
[  284.334628]  ? hrtimer_start_range_ns+0xe00/0xe00
[  284.339132]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.343977]  ? pvclock_read_flags+0x160/0x160
[  284.348189]  ? lockdep_hardirqs_on+0x296/0x5b0
[  284.352674]  ? trace_hardirqs_on+0x310/0x310
[  284.352695]  ? kvm_clock_read+0x18/0x30
[  284.357258]  ? trace_hardirqs_on+0xbd/0x310
[  284.361660]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  284.365622]  ? kasan_check_read+0x11/0x20
[  284.369936]  ? ktime_get_update_offsets_now+0x3b3/0x540
[  284.374955]  ? __run_timers+0x7da/0xc70
[  284.379092]  ? do_timer+0x50/0x50
[  284.384443]  ? trace_hardirqs_off_caller+0x310/0x310
[  284.388398]  ? rwlock_bug.part.2+0x90/0x90
[  284.391858]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.396936]  ? trace_hardirqs_on+0x310/0x310
[  284.401150]  __run_timers+0x7e5/0xc70
[  284.405372]  ? rcu_softirq_qs+0x20/0x20
[  284.409801]  ? timer_fixup_init+0x70/0x70
[  284.413587]  hrtimer_interrupt+0x313/0x780
[  284.417538]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  284.421686]  smp_apic_timer_interrupt+0x1a1/0x760
[  284.425917]  ? zap_class+0x640/0x640
[  284.430920]  ? smp_call_function_single_interrupt+0x650/0x650
[  284.435747]  ? enqueue_hrtimer+0x1a5/0x560
[  284.439443]  ? interrupt_entry+0xb5/0xc0
[  284.445311]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  284.449544]  ? trace_hardirqs_off_caller+0xbb/0x310
[  284.453590]  ? find_held_lock+0x36/0x1c0
[  284.458761]  ? ____cache_alloc_node+0x1c7/0x1e0
[  284.463766]  ? zap_class+0x640/0x640
[  284.467812]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  284.472466]  ? pvclock_read_flags+0x160/0x160
[  284.476165]  ? trace_hardirqs_on_caller+0x310/0x310
[  284.480987]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.485471]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  284.490466]  ? check_preemption_disabled+0x48/0x280
[  284.495991]  apic_timer_interrupt+0xf/0x20
[  284.500848]  ? __lock_is_held+0xb5/0x140
[  284.505859] RIP: 0010:kmem_cache_alloc_node+0x247/0x730
[  284.510080]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.514122] Code: 3f 7e 0f 85 32 ff ff ff e8 15 eb 3d ff e9 28 ff ff ff e8 bc 20 c3 ff 48 83 3d 54 69 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 02 f3
[  284.519470]  ? check_preemption_disabled+0x48/0x280
[  284.524998] RSP: 0018:ffff8881daf07450 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  284.543908]  run_timer_softirq+0x52/0xb0
[  284.548925] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff110383c198b
[  284.556619]  ? rcu_read_lock_sched_held+0x14f/0x180
[  284.560697] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000282
[  284.567972]  __do_softirq+0x308/0xb7e
[  284.572964] RBP: ffff8881daf074c0 R08: ffff8881c1e0cc58 R09: 0000000000000002
[  284.580226]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  284.584005] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: ffff8881d9a1c0c0
[  284.591263]  ? lock_downgrade+0x900/0x900
[  284.595738] R13: ffff8881d9a1c0c0 R14: 0000000000000000 R15: 0000000000000282
[  284.603002]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  284.607133]  ? apic_timer_interrupt+0xa/0x20
[  284.614407]  ? pvclock_read_flags+0x160/0x160
[  284.619505]  ? ipv6_get_ifaddr+0x42e/0x620
[  284.624363]  ? lapic_next_event+0x5a/0x90
[  284.628848]  __alloc_skb+0x119/0x770
[  284.633087]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.637216]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  284.640921]  ? kvm_clock_read+0x18/0x30
[  284.646443]  ? netdev_alloc_frag+0x1f0/0x1f0
[  284.651706]  ? kvm_sched_clock_read+0x9/0x20
[  284.655682]  ? lock_downgrade+0x900/0x900
[  284.660074]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.664468]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.668597]  ? check_preemption_disabled+0x48/0x280
[  284.674128]  ? refcount_sub_and_test_checked+0x203/0x310
[  284.679663]  irq_exit+0x17f/0x1c0
[  284.684662]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  284.690101]  smp_apic_timer_interrupt+0x1cb/0x760
[  284.693658]  ? addrconf_rs_timer+0x690/0x690
[  284.699100]  ? smp_reschedule_interrupt+0x109/0x650
[  284.703938]  ndisc_alloc_skb+0x144/0x340
[  284.708328]  ? smp_call_function_single_interrupt+0x650/0x650
[  284.713325]  ndisc_send_rs+0x331/0x6e0
[  284.717378]  ? interrupt_entry+0xb5/0xc0
[  284.723247]  addrconf_rs_timer+0x314/0x690
[  284.727163]  ? trace_hardirqs_off_caller+0xbb/0x310
[  284.731217]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.735439]  ? trace_hardirqs_off_caller+0xbb/0x310
[  284.740444]  call_timer_fn+0x272/0x920
[  284.744669]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  284.749678]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.753567]  ? trace_hardirqs_on_caller+0x310/0x310
[  284.758424]  ? process_timeout+0x40/0x40
[  284.762652]  ? trace_hardirqs_on_caller+0x310/0x310
[  284.767662]  ? mark_held_locks+0xc7/0x130
[  284.771713]  ? task_prio+0x50/0x50
[  284.776728]  ? _raw_spin_unlock_irq+0x27/0x80
[  284.780875]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.784400]  ? _raw_spin_unlock_irq+0x27/0x80
[  284.788880]  ? check_preemption_disabled+0x48/0x280
[  284.794423]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.798904]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  284.803934]  ? lockdep_hardirqs_on+0x296/0x5b0
[  284.808163]  apic_timer_interrupt+0xf/0x20
[  284.812989]  ? trace_hardirqs_on+0xbd/0x310
[  284.817546]  </IRQ>
[  284.821776]  ? kasan_check_read+0x11/0x20
[  284.826081] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  284.828314]  ? __run_timers+0x7da/0xc70
[  284.832450] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  284.837379]  ? trace_hardirqs_off_caller+0x310/0x310
[  284.841332] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  284.860229]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.865339] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  284.873035]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.877287] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  284.884547]  __run_timers+0x7e5/0xc70
[  284.888779] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  284.896043]  ? timer_fixup_init+0x70/0x70
[  284.899816] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  284.907091]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  284.911216] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  284.918477]  ? zap_class+0x640/0x640
[  284.923505]  skb_clone+0x1bb/0x500
[  284.930736]  ? print_usage_bug+0xc0/0xc0
[  284.934439]  ? skb_split+0x11e0/0x11e0
[  284.937963]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  284.942014]  ? preempt_notifier_register+0x200/0x200
[  284.945887]  ? find_held_lock+0x36/0x1c0
[  284.951057]  ? __switch_to_asm+0x34/0x70
[  284.951072]  ? __switch_to_asm+0x34/0x70
[  284.956184]  ? zap_class+0x640/0x640
[  284.960221]  ? __switch_to_asm+0x40/0x70
[  284.964305]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.968343]  ? __switch_to_asm+0x34/0x70
[  284.972046]  ? check_preemption_disabled+0x48/0x280
[  284.976091]  ? __switch_to_asm+0x40/0x70
[  284.981620]  ? __lock_is_held+0xb5/0x140
[  284.985672]  ? __switch_to_asm+0x40/0x70
[  284.990688]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.994750]  ? __switch_to_asm+0x34/0x70
[  284.998798]  ? check_preemption_disabled+0x48/0x280
[  285.002842]  ? __switch_to_asm+0x34/0x70
[  285.008364]  run_timer_softirq+0x52/0xb0
[  285.012438]  ? __switch_to_asm+0x40/0x70
[  285.017444]  ? rcu_read_lock_sched_held+0x14f/0x180
[  285.021486]  ? __switch_to_asm+0x34/0x70
[  285.025537]  __do_softirq+0x308/0xb7e
[  285.029584]  bpf_clone_redirect+0xb9/0x490
[  285.034581]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  285.038627]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  285.042426]  ? lock_downgrade+0x900/0x900
[  285.046656]  ? __sched_text_start+0x8/0x8
[  285.051152]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  285.056164]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  285.060315]  ? pvclock_read_flags+0x160/0x160
[  285.064445]  ? retint_kernel+0x2d/0x2d
[  285.069538]  ? lapic_next_event+0x5a/0x90
[  285.074101]  ? trace_hardirqs_on_caller+0xc0/0x310
[  285.078579]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.082453]  ? find_held_lock+0x36/0x1c0
[  285.086603]  ? kvm_clock_read+0x18/0x30
[  285.091519]  ? lock_acquire+0x1ed/0x520
[  285.097054]  ? kvm_sched_clock_read+0x9/0x20
[  285.101105]  ? bpf_test_run+0x3cb/0x780
[  285.105067]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.109028]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.113423]  ? check_preemption_disabled+0x48/0x280
[  285.117381]  ? check_preemption_disabled+0x48/0x280
[  285.122923]  irq_exit+0x17f/0x1c0
[  285.128456]  ? kasan_check_read+0x11/0x20
[  285.133462]  smp_apic_timer_interrupt+0x1cb/0x760
[  285.138483]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  285.141920]  ? smp_reschedule_interrupt+0x109/0x650
[  285.146093]  ? rcu_softirq_qs+0x20/0x20
[  285.150935]  ? smp_call_function_single_interrupt+0x650/0x650
[  285.156215]  ? preempt_schedule+0x4d/0x60
[  285.161237]  ? interrupt_entry+0xb5/0xc0
[  285.165202]  ? ___preempt_schedule+0x16/0x18
[  285.171072]  ? trace_hardirqs_off_caller+0xbb/0x310
[  285.175207]  ? bpf_test_run+0x25d/0x780
[  285.179251]  ? trace_hardirqs_off_caller+0xbb/0x310
[  285.183664]  ? netlink_diag_dump+0x2a0/0x2a0
[  285.188691]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  285.192655]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  285.197663]  ? trace_hardirqs_on_caller+0x310/0x310
[  285.202075]  ? bpf_test_init.isra.10+0x70/0x100
[  285.206902]  ? trace_hardirqs_on_caller+0x310/0x310
[  285.212438]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  285.217437]  ? task_prio+0x50/0x50
[  285.222096]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  285.227093]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.231834]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  285.235359]  ? check_preemption_disabled+0x48/0x280
[  285.240191]  ? fput+0x130/0x1a0
[  285.245714]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  285.251260]  ? __bpf_prog_get+0x9b/0x290
[  285.256282]  apic_timer_interrupt+0xf/0x20
[  285.259549]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  285.264374]  </IRQ>
[  285.268439]  ? bpf_prog_test_run+0x130/0x1a0
[  285.272663] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  285.277490]  ? __x64_sys_bpf+0x3db/0x520
[  285.279726] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  285.284118]  ? bpf_prog_get+0x20/0x20
[  285.289303] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  285.293369]  ? do_syscall_64+0x1b9/0x820
[  285.312235] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  285.316041]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  285.323727] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  285.327791]  ? syscall_return_slowpath+0x5e0/0x5e0
[  285.335061] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  285.340420]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  285.347667] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  285.347679] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  285.352603]  ? trace_hardirqs_on_caller+0x310/0x310
[  285.359875]  retint_kernel+0x1b/0x2d
[  285.364690]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  285.371966] RIP: 0010:dump_stack+0x358/0x39d
[  285.379229]  ? prepare_exit_to_usermode+0x291/0x3b0
[  285.384228] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  285.387931]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  285.392928] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  285.397326]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  285.402316] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  285.421225] warn_alloc_show_mem: 1 callbacks suppressed
[  285.421230] Mem-Info:
[  285.426039] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  285.433747] active_anon:57128 inactive_anon:971 isolated_anon:0
[  285.433747]  active_file:40 inactive_file:20 isolated_file:0
[  285.433747]  unevictable:0 dirty:11 writeback:0 unstable:0
[  285.433747]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  285.433747]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  285.433747]  free:13615 free_pcp:64 free_cma:0
[  285.439077] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  285.446353] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  285.451684] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  285.454078] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  285.461361] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  285.494297] lowmem_reserve[]: 0 2818 6321 6321
[  285.501578]  ? dump_stack+0x34f/0x39d
[  285.529478] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  285.536749]  ? dump_stack_print_info.cold.1+0x20/0x20
[  285.562827] lowmem_reserve[]: 0 0 3503 3503
[  285.570098]  ? mark_held_locks+0x130/0x130
[  285.574664] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  285.578458]  ? mark_held_locks+0x130/0x130
[  285.605931] lowmem_reserve[]: 0 0 0 0
[  285.611115]  dump_header+0x27b/0xf72
[  285.615432] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  285.619673]  ? pagefault_out_of_memory+0x197/0x197
[  285.648795] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  285.653029]  ? __lock_acquire+0x62f/0x4c20
[  285.656801] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  285.660508]  ? print_usage_bug+0xc0/0xc0
[  285.674015] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  285.678931]  ? zap_class+0x640/0x640
[  285.694015] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  285.698255]  ? print_usage_bug+0xc0/0xc0
[  285.713781] 5171 total pagecache pages
[  285.717849]  ? print_usage_bug+0xc0/0xc0
[  285.726675] 0 pages in swap cache
[  285.730372]  ? print_usage_bug+0xc0/0xc0
[  285.738925] Swap cache stats: add 0, delete 0, find 0/0
[  285.742983]  ? find_held_lock+0x36/0x1c0
[  285.746841] Free swap  = 0kB
[  285.750903]  ? mark_held_locks+0xc7/0x130
[  285.754325] Total swap = 0kB
[  285.758378]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  285.763721] 1965979 pages RAM
[  285.767777]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  285.770772] 0 pages HighMem/MovableOnly
[  285.774912]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  285.777907] 342854 pages reserved
[  285.783013]  ? trace_hardirqs_on+0xbd/0x310
[  285.786125] 0 pages cma reserved
[  285.791222]  ? kasan_check_read+0x11/0x20
[  285.795237] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  285.799763]  ? ___ratelimit+0x3b4/0x672
[  285.803293] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  285.807528]  ? trace_hardirqs_off_caller+0x310/0x310
[  285.810872] syz-executor2 cpuset=syz2 mems_allowed=0
[  285.815012]  ? trace_hardirqs_on+0x310/0x310
[  285.821488] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  285.825449]  ? lock_downgrade+0x900/0x900
[  285.835910] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  285.841005]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  285.846082] Call Trace:
[  285.850513]  ? ___ratelimit+0x3b9/0x672
[  285.857797]  <IRQ>
[  285.861944]  ? idr_get_free+0xf70/0xf70
[  285.871287]  dump_stack+0x244/0x39d
[  285.876389]  ? kasan_check_read+0x11/0x20
[  285.878961]  ? dump_stack_print_info.cold.1+0x20/0x20
[  285.882920]  ? do_raw_spin_unlock+0xa7/0x330
[  285.885063]  warn_alloc.cold.116+0xb7/0x1bd
[  285.889022]  oom_kill_process.cold.27+0x10/0x903
[  285.892628]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  285.896792]  ? zap_class+0x640/0x640
[  285.901971]  ? lock_downgrade+0x900/0x900
[  285.906392]  ? _raw_spin_unlock+0x2c/0x50
[  285.910703]  ? trace_hardirqs_off+0xb8/0x310
[  285.915440]  ? oom_badness+0xe6/0xaa0
[  285.920271]  ? trace_hardirqs_off+0xb8/0x310
[  285.923971]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  285.928124]  __alloc_pages_slowpath+0x2651/0x2de0
[  285.932255]  ? kasan_check_read+0x11/0x20
[  285.936694]  ? warn_alloc+0x120/0x120
[  285.940453]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  285.944847]  ? print_usage_bug+0xc0/0xc0
[  285.949759]  ? oom_evaluate_task+0x540/0x540
[  285.954588]  ? warn_alloc+0x120/0x120
[  285.958723]  ? find_held_lock+0x36/0x1c0
[  285.962511]  ? warn_alloc+0x120/0x120
[  285.967797]  ? out_of_memory+0x974/0x1430
[  285.971869]  ? print_usage_bug+0xc0/0xc0
[  285.976262]  ? lock_downgrade+0x900/0x900
[  285.980063]  ? kvm_clock_read+0x18/0x30
[  285.984107]  ? check_preemption_disabled+0x48/0x280
[  285.987898]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  285.992041]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  285.996088]  ? print_usage_bug+0xc0/0xc0
[  286.000215]  ? kasan_check_read+0x11/0x20
[  286.004183]  ? __lock_acquire+0x62f/0x4c20
[  286.009185]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  286.014198]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  286.019115]  ? rcu_softirq_qs+0x20/0x20
[  286.023159]  ? should_fail+0x22d/0xd01
[  286.027295]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  286.031516]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  286.036776]  ? oom_evaluate_task+0x302/0x540
[  286.042302]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  286.046275]  out_of_memory+0xa84/0x1430
[  286.050214]  ? __lock_acquire+0x62f/0x4c20
[  286.055737]  ? oom_killer_disable+0x3a0/0x3a0
[  286.060993]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  286.065398]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  286.070485]  ? __lock_acquire+0x62f/0x4c20
[  286.074457]  ? __ww_mutex_check_waiters+0x160/0x160
[  286.078682]  ? should_fail+0x22d/0xd01
[  286.083174]  __alloc_pages_slowpath+0x232c/0x2de0
[  286.088252]  ? rcu_irq_exit+0x1a2/0x390
[  286.093197]  ? warn_alloc+0x120/0x120
[  286.097398]  ? mark_held_locks+0x130/0x130
[  286.102393]  ? mark_held_locks+0x130/0x130
[  286.106279]  ? mark_held_locks+0x130/0x130
[  286.111108]  ? find_get_entry+0xaae/0x1120
[  286.115069]  ? mark_held_locks+0xc7/0x130
[  286.118863]  ? filemap_map_pages+0x1a20/0x1a20
[  286.123080]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  286.127297]  ? zap_class+0x640/0x640
[  286.131513]  ? zap_class+0x640/0x640
[  286.135739]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.139874]  ? print_usage_bug+0xc0/0xc0
[  286.144442]  ? check_preemption_disabled+0x48/0x280
[  286.149444]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.153141]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  286.156848]  ? check_preemption_disabled+0x48/0x280
[  286.162370]  ? should_fail+0x22d/0xd01
[  286.166419]  ? __lock_is_held+0xb5/0x140
[  286.171420]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  286.176940]  __alloc_pages_nodemask+0xad8/0xea0
[  286.182459]  ? zap_class+0x640/0x640
[  286.187460]  ? zap_class+0x640/0x640
[  286.191351]  ? __lock_is_held+0xb5/0x140
[  286.195382]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  286.200476]  ? mark_held_locks+0x130/0x130
[  286.205148]  ? find_held_lock+0x36/0x1c0
[  286.208856]  ? lock_release+0xa00/0xa00
[  286.212561]  ? ____cache_alloc_node+0x1c7/0x1e0
[  286.216603]  ? perf_trace_sched_process_exec+0x860/0x860
[  286.221604]  ? lock_downgrade+0x900/0x900
[  286.225822]  ? xa_load+0x2ba/0x460
[  286.229871]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.233827]  ? lock_downgrade+0x900/0x900
[  286.238479]  cache_grow_begin+0xa5/0x8c0
[  286.243914]  ? __might_sleep+0x95/0x190
[  286.248044]  ? do_raw_spin_unlock+0xa7/0x330
[  286.251582]  __alloc_pages_nodemask+0xad8/0xea0
[  286.257122]  fallback_alloc+0x204/0x2e0
[  286.261268]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  286.265373]  ____cache_alloc_node+0x1c7/0x1e0
[  286.269329]  ? __page_cache_alloc+0x191/0x5c0
[  286.273721]  kmem_cache_alloc_node+0xe3/0x730
[  286.278374]  ? xa_load+0x2e1/0x460
[  286.282362]  ? ipv6_get_ifaddr+0x42e/0x620
[  286.287361]  ? xa_clear_mark+0x40/0x40
[  286.291848]  __alloc_skb+0x119/0x770
[  286.296325]  ? zap_class+0x640/0x640
[  286.300805]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  286.304361]  ? zap_class+0x640/0x640
[  286.308579]  ? netdev_alloc_frag+0x1f0/0x1f0
[  286.312452]  ? zap_class+0x640/0x640
[  286.316151]  ? lock_downgrade+0x900/0x900
[  286.319854]  ? __do_page_cache_readahead+0x663/0x810
[  286.325118]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.328812]  ? find_held_lock+0x36/0x1c0
[  286.333202]  ? refcount_sub_and_test_checked+0x203/0x310
[  286.336916]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  286.341046]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  286.346149]  alloc_pages_current+0x173/0x350
[  286.351673]  ? addrconf_rs_timer+0x690/0x690
[  286.355719]  __page_cache_alloc+0x38c/0x5c0
[  286.361170]  ndisc_alloc_skb+0x144/0x340
[  286.366716]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  286.372159]  ndisc_send_rs+0x331/0x6e0
[  286.376554]  ? kasan_check_read+0x11/0x20
[  286.380947]  addrconf_rs_timer+0x314/0x690
[  286.385249]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  286.389321]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.394236]  ? generic_perform_write+0x6a0/0x6a0
[  286.398116]  call_timer_fn+0x272/0x920
[  286.402243]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  286.406475]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.411737]  ? check_preemption_disabled+0x48/0x280
[  286.415955]  ? process_timeout+0x40/0x40
[  286.420704]  filemap_fault+0x1595/0x25f0
[  286.424572]  ? __run_timers+0x7da/0xc70
[  286.430113]  ? __lock_page_or_retry+0xa00/0xa00
[  286.434326]  ? _raw_spin_unlock_irq+0x27/0x80
[  286.439328]  ? mark_held_locks+0x130/0x130
[  286.443372]  ? _raw_spin_unlock_irq+0x27/0x80
[  286.447422]  ? filemap_map_pages+0xd6b/0x1a20
[  286.451373]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.456044]  ? lock_downgrade+0x900/0x900
[  286.460532]  ? lockdep_hardirqs_on+0x296/0x5b0
[  286.464751]  ? check_preemption_disabled+0x48/0x280
[  286.469230]  ? trace_hardirqs_on+0xbd/0x310
[  286.473706]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  286.477926]  ? kasan_check_read+0x11/0x20
[  286.482071]  ? kasan_check_read+0x11/0x20
[  286.486662]  ? __run_timers+0x7da/0xc70
[  286.491673]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  286.495981]  ? trace_hardirqs_off_caller+0x310/0x310
[  286.500911]  ? rcu_softirq_qs+0x20/0x20
[  286.505055]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.509199]  ? filemap_map_pages+0xd92/0x1a20
[  286.513149]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.518436]  ? find_get_entries_tag+0x1400/0x1400
[  286.523512]  __run_timers+0x7e5/0xc70
[  286.527474]  ? debug_object_destroy+0x2b0/0x2b0
[  286.531701]  ? timer_fixup_init+0x70/0x70
[  286.536196]  ? lock_pi_update_atomic+0x150/0x150
[  286.540411]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  286.545235]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.549017]  ? zap_class+0x640/0x640
[  286.553692]  ? lock_acquire+0x1ed/0x520
[  286.557817]  ? enqueue_hrtimer+0x1a5/0x560
[  286.562554]  ? ext4_filemap_fault+0x7a/0xad
[  286.567567]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  286.573089]  ? lock_release+0xa00/0xa00
[  286.576801]  ? find_held_lock+0x36/0x1c0
[  286.580759]  ? perf_trace_sched_process_exec+0x860/0x860
[  286.584979]  ? zap_class+0x640/0x640
[  286.589283]  ? print_usage_bug+0xc0/0xc0
[  286.594500]  ? pvclock_read_flags+0x160/0x160
[  286.598455]  ? print_usage_bug+0xc0/0xc0
[  286.602500]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.607939]  ? down_read+0x8d/0x120
[  286.611646]  ? check_preemption_disabled+0x48/0x280
[  286.615694]  ? ext4_filemap_fault+0x7a/0xad
[  286.620691]  ? __lock_is_held+0xb5/0x140
[  286.620723]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.624823]  ? __down_interruptible+0x700/0x700
[  286.630353]  ? check_preemption_disabled+0x48/0x280
[  286.633978]  ext4_filemap_fault+0x82/0xad
[  286.639002]  run_timer_softirq+0x52/0xb0
[  286.643311]  __do_fault+0x100/0x6b0
[  286.647359]  ? rcu_read_lock_sched_held+0x14f/0x180
[  286.652879]  ? pmd_devmap_trans_unstable+0x220/0x220
[  286.657532]  __do_softirq+0x308/0xb7e
[  286.662580]  ? mark_held_locks+0x130/0x130
[  286.666712]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  286.670757]  ? mark_held_locks+0x130/0x130
[  286.674366]  ? lock_downgrade+0x900/0x900
[  286.679369]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  286.684456]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  286.688240]  ? retint_kernel+0x2d/0x2d
[  286.692464]  ? pvclock_read_flags+0x160/0x160
[  286.696945]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  286.701183]  ? lapic_next_event+0x5a/0x90
[  286.705316]  __handle_mm_fault+0x3ea0/0x5be0
[  286.710056]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.715142]  ? perf_trace_lock+0x7a0/0x7a0
[  286.719017]  ? kvm_clock_read+0x18/0x30
[  286.723498]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  286.729017]  ? kvm_sched_clock_read+0x9/0x20
[  286.733153]  ? __switch_to_asm+0x34/0x70
[  286.737544]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.743060]  ? __switch_to_asm+0x34/0x70
[  286.747310]  ? check_preemption_disabled+0x48/0x280
[  286.751280]  ? zap_class+0x640/0x640
[  286.756106]  irq_exit+0x17f/0x1c0
[  286.760499]  ? zap_class+0x640/0x640
[  286.764546]  smp_apic_timer_interrupt+0x1cb/0x760
[  286.770068]  ? __x64_sys_futex+0x53e/0x6a0
[  286.774122]  ? smp_reschedule_interrupt+0x109/0x650
[  286.779124]  ? find_held_lock+0x36/0x1c0
[  286.782837]  ? smp_call_function_single_interrupt+0x650/0x650
[  286.786276]  ? handle_mm_fault+0x42a/0xc70
[  286.789968]  ? interrupt_entry+0xb5/0xc0
[  286.794811]  ? lock_downgrade+0x900/0x900
[  286.799053]  ? trace_hardirqs_off_caller+0xbb/0x310
[  286.804054]  ? check_preemption_disabled+0x48/0x280
[  286.808140]  ? trace_hardirqs_off_caller+0xbb/0x310
[  286.814025]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  286.818262]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  286.822308]  ? kasan_check_read+0x11/0x20
[  286.826440]  ? trace_hardirqs_on_caller+0x310/0x310
[  286.831435]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  286.836440]  ? trace_hardirqs_on_caller+0x310/0x310
[  286.841436]  ? rcu_softirq_qs+0x20/0x20
[  286.846351]  ? task_prio+0x50/0x50
[  286.851182]  ? trace_hardirqs_off_caller+0x310/0x310
[  286.855323]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.860320]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  286.865580]  ? check_preemption_disabled+0x48/0x280
[  286.870578]  ? check_preemption_disabled+0x48/0x280
[  286.874552]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  286.878094]  handle_mm_fault+0x54f/0xc70
[  286.883195]  apic_timer_interrupt+0xf/0x20
[  286.888716]  ? __handle_mm_fault+0x5be0/0x5be0
[  286.894228]  </IRQ>
[  286.899248]  ? find_vma+0x34/0x190
[  286.904266] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  286.909092]  __do_page_fault+0x5e8/0xe60
[  286.913134] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  286.917352]  ? trace_hardirqs_off+0xb8/0x310
[  286.921930] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  286.924181]  do_page_fault+0xf2/0x7e0
[  286.927692] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  286.932609]  ? vmalloc_sync_all+0x30/0x30
[  286.936664] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  286.955568]  ? error_entry+0x70/0xd0
[  286.959964] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  286.967668]  ? trace_hardirqs_off_caller+0xbb/0x310
[  286.971452] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  286.978715]  ? trace_hardirqs_on_caller+0xc0/0x310
[  286.982842] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  286.990121]  ? syscall_return_slowpath+0x5e0/0x5e0
[  286.993849]  skb_clone+0x1bb/0x500
[  287.001081]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  287.006081]  ? skb_split+0x11e0/0x11e0
[  287.013334]  ? trace_hardirqs_on_caller+0x310/0x310
[  287.018257]  ? preempt_notifier_register+0x200/0x200
[  287.025553]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  287.030465]  ? __switch_to_asm+0x34/0x70
[  287.033986]  ? prepare_exit_to_usermode+0x291/0x3b0
[  287.038833]  ? __switch_to_asm+0x34/0x70
[  287.042698]  ? page_fault+0x8/0x30
[  287.047705]  ? __switch_to_asm+0x40/0x70
[  287.052789]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  287.058223]  ? __switch_to_asm+0x34/0x70
[  287.062418]  ? page_fault+0x8/0x30
[  287.067441]  ? __switch_to_asm+0x40/0x70
[  287.071488]  page_fault+0x1e/0x30
[  287.075011]  ? __switch_to_asm+0x40/0x70
[  287.079054] RIP: 0033:0x4290d7
[  287.083897]  ? __switch_to_asm+0x34/0x70
[  287.087960] Code: Bad RIP value.
[  287.091474]  ? __switch_to_asm+0x34/0x70
[  287.095513] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  287.098975]  ? __switch_to_asm+0x40/0x70
[  287.103012] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  287.103024] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  287.106216]  ? __switch_to_asm+0x34/0x70
[  287.110267] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  287.113624]  bpf_clone_redirect+0xb9/0x490
[  287.117668] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  287.117680] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  287.123044]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  287.127100] rcu: rcu_preempt kthread starved for 10501 jiffies! g12641 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
[  287.134359]  ? __sched_text_start+0x8/0x8
[  287.141601] rcu: RCU grace-period kthread stack dump:
[  287.145673]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  287.152911] rcu_preempt     R  running task    22696    10      2 0x80000000
[  287.157147]  ? retint_kernel+0x2d/0x2d
[  287.164401] Call Trace:
[  287.171685]  ? trace_hardirqs_on_caller+0xc0/0x310
[  287.176695]  __schedule+0x8cf/0x21d0
[  287.187168]  ? find_held_lock+0x36/0x1c0
[  287.191309]  ? __sched_text_start+0x8/0x8
[  287.196517]  ? lock_acquire+0x1ed/0x520
[  287.201081]  ? add_timer_on+0xa20/0xa20
[  287.208249]  ? bpf_test_run+0x3cb/0x780
[  287.212121]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  287.214704]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.219609]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  287.219628]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  287.223345]  ? check_preemption_disabled+0x48/0x280
[  287.227387]  ? trace_hardirqs_on+0xbd/0x310
[  287.231535]  ? kasan_check_read+0x11/0x20
[  287.235569]  ? kasan_check_read+0x11/0x20
[  287.239558]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  287.243501]  ? prepare_to_swait_event+0x25a/0x800
[  287.248589]  ? rcu_softirq_qs+0x20/0x20
[  287.254314]  ? trace_hardirqs_off_caller+0x310/0x310
[  287.259409]  ? preempt_schedule+0x4d/0x60
[  287.263975]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  287.268997]  ? ___preempt_schedule+0x16/0x18
[  287.273316]  schedule+0xfe/0x460
[  287.277471]  ? bpf_test_run+0x25d/0x780
[  287.281613]  ? __schedule+0x21d0/0x21d0
[  287.286903]  ? netlink_diag_dump+0x2a0/0x2a0
[  287.291720]  ? prepare_to_swait_event+0x25a/0x800
[  287.295696]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  287.300794]  ? __init_swait_queue_head+0x150/0x150
[  287.304933]  ? bpf_test_init.isra.10+0x70/0x100
[  287.310022]  ? __lockdep_init_map+0x105/0x590
[  287.314417]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  287.317771]  ? lockdep_init_map+0x9/0x10
[  287.321744]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  287.325697]  schedule_timeout+0x140/0x260
[  287.330111]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  287.335211]  ? usleep_range+0x1a0/0x1a0
[  287.340747]  ? fput+0x130/0x1a0
[  287.345680]  ? __next_timer_interrupt+0x1a0/0x1a0
[  287.350355]  ? __bpf_prog_get+0x9b/0x290
[  287.354848]  rcu_gp_fqs_loop+0x762/0xa80
[  287.359585]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  287.363631]  ? rcu_gp_fqs_check_wake+0x170/0x170
[  287.368481]  ? bpf_prog_test_run+0x130/0x1a0
[  287.372610]  ? trace_hardirqs_off_caller+0x310/0x310
[  287.378128]  ? __x64_sys_bpf+0x3db/0x520
[  287.382092]  ? perf_trace_sched_process_exec+0x860/0x860
[  287.385352]  ? bpf_prog_get+0x20/0x20
[  287.390183]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.394259]  ? do_syscall_64+0x1b9/0x820
[  287.398280]  ? rcu_gp_init+0x90b/0x1260
[  287.403123]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  287.407871]  ? dump_blkd_tasks.isra.48+0xe0/0xe0
[  287.412278]  ? syscall_return_slowpath+0x5e0/0x5e0
[  287.417356]  ? rcu_accelerate_cbs+0x562/0xae0
[  287.421406]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  287.426847]  ? zap_class+0x640/0x640
[  287.430672]  ? trace_hardirqs_on_caller+0x310/0x310
[  287.436188]  ? zap_class+0x640/0x640
[  287.440239]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  287.444203]  ? __lock_is_held+0xb5/0x140
[  287.449554]  ? prepare_exit_to_usermode+0x291/0x3b0
[  287.454297]  ? __lock_is_held+0xb5/0x140
[  287.459235]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  287.463708]  ? zap_class+0x640/0x640
[  287.468544]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  287.472255]  ? rcu_accelerate_cbs+0x562/0xae0
[  287.477324] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  287.480959]  ? find_held_lock+0x36/0x1c0
[  287.480986]  ? rcu_gp_kthread+0x8cf/0xc70
[  287.486035] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  287.490034]  ? _raw_spin_unlock_irq+0x27/0x80
[  287.495032] syz-executor2 cpuset=syz2 mems_allowed=0
[  287.499114]  ? _raw_spin_unlock_irq+0x27/0x80
[  287.503953] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  287.507659]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  287.513006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  287.517491]  ? trace_hardirqs_on+0xbd/0x310
[  287.523954] Call Trace:
[  287.528006]  ? kasan_check_read+0x11/0x20
[  287.532138]  <IRQ>
[  287.542615]  ? trace_hardirqs_off_caller+0x310/0x310
[  287.547110]  dump_stack+0x244/0x39d
[  287.552195]  ? perf_trace_sched_process_exec+0x860/0x860
[  287.556684]  ? dump_stack_print_info.cold.1+0x20/0x20
[  287.563941]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.568513]  warn_alloc.cold.116+0xb7/0x1bd
[  287.577878]  rcu_gp_kthread+0x341/0xc70
[  287.582190]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  287.582207]  ? lock_downgrade+0x900/0x900
[  287.584782]  ? rcu_gp_init+0x1260/0x1260
[  287.588930]  ? trace_hardirqs_off+0xb8/0x310
[  287.591062]  ? mark_held_locks+0x130/0x130
[  287.596164]  ? trace_hardirqs_off+0xb8/0x310
[  287.599787]  ? __schedule+0x168a/0x21d0
[  287.605232]  __alloc_pages_slowpath+0x2651/0x2de0
[  287.610399]  ? _raw_spin_unlock_irq+0x27/0x80
[  287.615983]  ? warn_alloc+0x120/0x120
[  287.620269]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  287.624243]  ? print_usage_bug+0xc0/0xc0
[  287.629081]  ? trace_hardirqs_on+0xbd/0x310
[  287.633215]  ? warn_alloc+0x120/0x120
[  287.637267]  ? kasan_check_read+0x11/0x20
[  287.641675]  ? warn_alloc+0x120/0x120
[  287.645891]  ? __schedule+0x168a/0x21d0
[  287.650281]  ? print_usage_bug+0xc0/0xc0
[  287.654238]  ? trace_hardirqs_off_caller+0x310/0x310
[  287.659074]  ? print_usage_bug+0xc0/0xc0
[  287.663569]  ? lock_pin_lock+0x350/0x350
[  287.667370]  ? __lock_acquire+0x62f/0x4c20
[  287.671941]  ? _raw_spin_unlock_irq+0x60/0x80
[  287.676000]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  287.680304]  ? __schedule+0x168a/0x21d0
[  287.684094]  ? should_fail+0x22d/0xd01
[  287.688227]  ? __switch_to_asm+0x40/0x70
[  287.692056]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  287.696014]  ? __switch_to_asm+0x40/0x70
[  287.700059]  ? __lock_acquire+0x62f/0x4c20
[  287.705152]  ? show_schedstat+0x561/0xf30
[  287.709197]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  287.713241]  ? __sched_text_start+0x8/0x8
[  287.717474]  ? __lock_acquire+0x62f/0x4c20
[  287.721958]  ? find_held_lock+0x36/0x1c0
[  287.727472]  ? should_fail+0x22d/0xd01
[  287.731433]  ? __kthread_parkme+0xce/0x1a0
[  287.735314]  ? find_held_lock+0x36/0x1c0
[  287.739385]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  287.744472]  ? mark_held_locks+0x130/0x130
[  287.748509]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  287.752729]  ? mark_held_locks+0x130/0x130
[  287.756859]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  287.761953]  ? zap_class+0x640/0x640
[  287.766099]  ? trace_hardirqs_on+0xbd/0x310
[  287.770315]  ? zap_class+0x640/0x640
[  287.774361]  ? kasan_check_read+0x11/0x20
[  287.778231]  ? print_usage_bug+0xc0/0xc0
[  287.782464]  ? __kthread_parkme+0xce/0x1a0
[  287.786509]  ? do_raw_spin_unlock+0xa7/0x330
[  287.791593]  ? trace_hardirqs_off_caller+0x310/0x310
[  287.795825]  ? zap_class+0x640/0x640
[  287.800936]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  287.805145]  ? print_usage_bug+0xc0/0xc0
[  287.809716]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  287.813414]  ? wq_watchdog_touch+0x9c/0xfe
[  287.817716]  ? __kthread_parkme+0xfb/0x1a0
[  287.821414]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.825542]  ? rcu_gp_init+0x1260/0x1260
[  287.829590]  ? check_preemption_disabled+0x48/0x280
[  287.833805]  kthread+0x35a/0x440
[  287.838202]  ? __lock_is_held+0xb5/0x140
[  287.843282]  ? kthread_stop+0x900/0x900
[  287.846979]  __alloc_pages_nodemask+0xad8/0xea0
[  287.852068]  ret_from_fork+0x3a/0x50
[  287.856127]  ? zap_class+0x640/0x640
[  287.861733] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  287.865881]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  287.870155] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  287.875628]  ? find_held_lock+0x36/0x1c0
[  287.879664] syz-fuzzer cpuset=/ mems_allowed=0
[  287.884701]  ? ____cache_alloc_node+0x1c7/0x1e0
[  287.943030]  ? lock_downgrade+0x900/0x900
[  287.947189]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.952731]  cache_grow_begin+0xa5/0x8c0
[  287.956804]  ? do_raw_spin_unlock+0xa7/0x330
[  287.961217]  fallback_alloc+0x204/0x2e0
[  287.965197]  ____cache_alloc_node+0x1c7/0x1e0
[  287.969700]  kmem_cache_alloc_node+0xe3/0x730
[  287.974195]  ? ipv6_get_ifaddr+0x42e/0x620
[  287.978439]  __alloc_skb+0x119/0x770
[  287.982154]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  287.987434]  ? netdev_alloc_frag+0x1f0/0x1f0
[  287.991845]  ? lock_downgrade+0x900/0x900
[  287.996003]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.001544]  ? refcount_sub_and_test_checked+0x203/0x310
[  288.007002]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  288.012455]  ? addrconf_rs_timer+0x690/0x690
[  288.016877]  ndisc_alloc_skb+0x144/0x340
[  288.020957]  ndisc_send_rs+0x331/0x6e0
[  288.024857]  addrconf_rs_timer+0x314/0x690
[  288.029110]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.033365]  call_timer_fn+0x272/0x920
[  288.037279]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.041517]  ? process_timeout+0x40/0x40
[  288.045583]  ? __run_timers+0x7da/0xc70
[  288.049571]  ? _raw_spin_unlock_irq+0x27/0x80
[  288.054081]  ? _raw_spin_unlock_irq+0x27/0x80
[  288.058575]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.062810]  ? lockdep_hardirqs_on+0x296/0x5b0
[  288.067405]  ? trace_hardirqs_on+0xbd/0x310
[  288.071726]  ? kasan_check_read+0x11/0x20
[  288.075873]  ? __run_timers+0x7da/0xc70
[  288.079853]  ? trace_hardirqs_off_caller+0x310/0x310
[  288.084960]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.089204]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.093435]  __run_timers+0x7e5/0xc70
[  288.097261]  ? timer_fixup_init+0x70/0x70
[  288.101410]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  288.106430]  ? zap_class+0x640/0x640
[  288.110147]  ? enqueue_hrtimer+0x1a5/0x560
[  288.114382]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  288.119595]  ? find_held_lock+0x36/0x1c0
[  288.123674]  ? zap_class+0x640/0x640
[  288.127393]  ? pvclock_read_flags+0x160/0x160
[  288.131894]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.137432]  ? check_preemption_disabled+0x48/0x280
[  288.142458]  ? __lock_is_held+0xb5/0x140
[  288.146522]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.152062]  ? check_preemption_disabled+0x48/0x280
[  288.157100]  run_timer_softirq+0x52/0xb0
[  288.161169]  ? rcu_read_lock_sched_held+0x14f/0x180
[  288.166188]  __do_softirq+0x308/0xb7e
[  288.169996]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  288.174487]  ? lock_downgrade+0x900/0x900
[  288.178634]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  288.183759]  ? pvclock_read_flags+0x160/0x160
[  288.188270]  ? lapic_next_event+0x5a/0x90
[  288.192433]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.197979]  ? kvm_clock_read+0x18/0x30
[  288.201949]  ? kvm_sched_clock_read+0x9/0x20
[  288.206357]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.211906]  ? check_preemption_disabled+0x48/0x280
[  288.216949]  irq_exit+0x17f/0x1c0
[  288.220419]  smp_apic_timer_interrupt+0x1cb/0x760
[  288.225262]  ? smp_reschedule_interrupt+0x109/0x650
[  288.230289]  ? smp_call_function_single_interrupt+0x650/0x650
[  288.236178]  ? interrupt_entry+0xb5/0xc0
[  288.240255]  ? trace_hardirqs_off_caller+0xbb/0x310
[  288.245273]  ? trace_hardirqs_off_caller+0xbb/0x310
[  288.250289]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  288.255154]  ? trace_hardirqs_on_caller+0x310/0x310
[  288.260165]  ? trace_hardirqs_on_caller+0x310/0x310
[  288.265178]  ? task_prio+0x50/0x50
[  288.268722]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.274261]  ? check_preemption_disabled+0x48/0x280
[  288.279281]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  288.284129]  apic_timer_interrupt+0xf/0x20
[  288.288359]  </IRQ>
[  288.290612] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  288.295562] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  288.314463] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  288.322167] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  288.329432] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  288.336714] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  288.343980] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  288.351248] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  288.358549]  skb_clone+0x1bb/0x500
[  288.362094]  ? skb_split+0x11e0/0x11e0
[  288.365980]  ? preempt_notifier_register+0x200/0x200
[  288.371078]  ? __switch_to_asm+0x34/0x70
[  288.375168]  ? __switch_to_asm+0x34/0x70
[  288.379224]  ? __switch_to_asm+0x40/0x70
[  288.383278]  ? __switch_to_asm+0x34/0x70
[  288.387365]  ? __switch_to_asm+0x40/0x70
[  288.391423]  ? __switch_to_asm+0x40/0x70
[  288.395516]  ? __switch_to_asm+0x34/0x70
[  288.399573]  ? __switch_to_asm+0x34/0x70
[  288.403628]  ? __switch_to_asm+0x40/0x70
[  288.407700]  ? __switch_to_asm+0x34/0x70
[  288.411793]  bpf_clone_redirect+0xb9/0x490
[  288.416067]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  288.421088]  ? __sched_text_start+0x8/0x8
[  288.425240]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  288.429822]  ? retint_kernel+0x2d/0x2d
[  288.433711]  ? trace_hardirqs_on_caller+0xc0/0x310
[  288.438656]  ? find_held_lock+0x36/0x1c0
[  288.442727]  ? lock_acquire+0x1ed/0x520
[  288.446745]  ? bpf_test_run+0x3cb/0x780
[  288.450719]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.456256]  ? check_preemption_disabled+0x48/0x280
[  288.461274]  ? kasan_check_read+0x11/0x20
[  288.465418]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  288.470694]  ? rcu_softirq_qs+0x20/0x20
[  288.474677]  ? preempt_schedule+0x4d/0x60
[  288.478824]  ? ___preempt_schedule+0x16/0x18
[  288.483240]  ? bpf_test_run+0x25d/0x780
[  288.487240]  ? netlink_diag_dump+0x2a0/0x2a0
[  288.491663]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  288.497204]  ? bpf_test_init.isra.10+0x70/0x100
[  288.501884]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  288.506657]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  288.511540]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  288.517077]  ? fput+0x130/0x1a0
[  288.520384]  ? __bpf_prog_get+0x9b/0x290
[  288.524463]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  288.529339]  ? bpf_prog_test_run+0x130/0x1a0
[  288.533751]  ? __x64_sys_bpf+0x3db/0x520
[  288.537822]  ? bpf_prog_get+0x20/0x20
[  288.541651]  ? do_syscall_64+0x1b9/0x820
[  288.545719]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  288.551084]  ? syscall_return_slowpath+0x5e0/0x5e0
[  288.556023]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  288.560869]  ? trace_hardirqs_on_caller+0x310/0x310
[  288.565905]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  288.570925]  ? prepare_exit_to_usermode+0x291/0x3b0
[  288.575947]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  288.580810]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  288.586219] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  288.586224] warn_alloc_show_mem: 1 callbacks suppressed
[  288.586231] Mem-Info:
[  288.593236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  288.598602] active_anon:57128 inactive_anon:971 isolated_anon:0
[  288.598602]  active_file:40 inactive_file:20 isolated_file:0
[  288.598602]  unevictable:0 dirty:11 writeback:0 unstable:0
[  288.598602]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  288.598602]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  288.598602]  free:13615 free_pcp:64 free_cma:0
[  288.600973] Call Trace:
[  288.610361] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  288.643400]  <IRQ>
[  288.645971] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  288.673901]  dump_stack+0x244/0x39d
[  288.676045] lowmem_reserve[]: 0 2818 6321 6321
[  288.702149]  ? dump_stack_print_info.cold.1+0x20/0x20
[  288.705758] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  288.710350]  warn_alloc.cold.116+0xb7/0x1bd
[  288.715506] lowmem_reserve[]: 0 0 3503 3503
[  288.743014]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  288.747308] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  288.751632]  ? lock_downgrade+0x900/0x900
[  288.756451] lowmem_reserve[]: 0 0 0 0
[  288.785605]  ? trace_hardirqs_off+0xb8/0x310
[  288.789727] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  288.793525]  ? trace_hardirqs_off+0xb8/0x310
[  288.797920] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  288.811435]  __alloc_pages_slowpath+0x2651/0x2de0
[  288.815813] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  288.830911]  ? warn_alloc+0x120/0x120
[  288.835715] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  288.851258]  ? print_usage_bug+0xc0/0xc0
[  288.855043] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  288.863867]  ? warn_alloc+0x120/0x120
[  288.867914] 5171 total pagecache pages
[  288.876480]  ? warn_alloc+0x120/0x120
[  288.880265] 0 pages in swap cache
[  288.884139]  ? print_usage_bug+0xc0/0xc0
[  288.887921] Swap cache stats: add 0, delete 0, find 0/0
[  288.891361]  ? print_usage_bug+0xc0/0xc0
[  288.895415] Free swap  = 0kB
[  288.900770]  ? __lock_acquire+0x62f/0x4c20
[  288.904808] Total swap = 0kB
[  288.907819]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  288.912025] 1965979 pages RAM
[  288.915040]  ? should_fail+0x22d/0xd01
[  288.920564] 0 pages HighMem/MovableOnly
[  288.923674]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  288.927544] 342854 pages reserved
[  288.931513]  ? __lock_acquire+0x62f/0x4c20
[  288.936593] 0 pages cma reserved
[  288.940039]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  288.944308] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  288.947598]  ? __lock_acquire+0x62f/0x4c20
[  288.947614]  ? should_fail+0x22d/0xd01
[  288.952786] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  288.959196]  ? mark_held_locks+0x130/0x130
[  288.963417] syz-executor2 cpuset=syz2 mems_allowed=0
[  288.967296]  ? mark_held_locks+0x130/0x130
[  288.991318]  ? zap_class+0x640/0x640
[  288.995045]  ? zap_class+0x640/0x640
[  288.998761]  ? print_usage_bug+0xc0/0xc0
[  289.002822]  ? wq_watchdog_touch+0x9c/0xfe
[  289.007059]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.012617]  ? check_preemption_disabled+0x48/0x280
[  289.017669]  ? __lock_is_held+0xb5/0x140
[  289.021740]  __alloc_pages_nodemask+0xad8/0xea0
[  289.026409]  ? zap_class+0x640/0x640
[  289.030132]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  289.035166]  ? find_held_lock+0x36/0x1c0
[  289.039251]  ? ____cache_alloc_node+0x1c7/0x1e0
[  289.043937]  ? lock_downgrade+0x900/0x900
[  289.048089]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.053632]  cache_grow_begin+0xa5/0x8c0
[  289.057699]  ? do_raw_spin_unlock+0xa7/0x330
[  289.062136]  fallback_alloc+0x204/0x2e0
[  289.066118]  ____cache_alloc_node+0x1c7/0x1e0
[  289.070617]  kmem_cache_alloc_node+0xe3/0x730
[  289.075140]  ? ipv6_get_ifaddr+0x42e/0x620
[  289.079397]  __alloc_skb+0x119/0x770
[  289.083108]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.088416]  ? netdev_alloc_frag+0x1f0/0x1f0
[  289.092823]  ? lock_downgrade+0x900/0x900
[  289.096981]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.102516]  ? refcount_sub_and_test_checked+0x203/0x310
[  289.107982]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  289.113436]  ? addrconf_rs_timer+0x690/0x690
[  289.117886]  ndisc_alloc_skb+0x144/0x340
[  289.121956]  ndisc_send_rs+0x331/0x6e0
[  289.125848]  addrconf_rs_timer+0x314/0x690
[  289.130103]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  289.134360]  call_timer_fn+0x272/0x920
[  289.138261]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  289.142497]  ? process_timeout+0x40/0x40
[  289.146569]  ? mark_held_locks+0xc7/0x130
[  289.150719]  ? _raw_spin_unlock_irq+0x27/0x80
[  289.155211]  ? _raw_spin_unlock_irq+0x27/0x80
[  289.159705]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  289.163946]  ? lockdep_hardirqs_on+0x296/0x5b0
[  289.168528]  ? trace_hardirqs_on+0xbd/0x310
[  289.172864]  ? kasan_check_read+0x11/0x20
[  289.177029]  ? __run_timers+0x7da/0xc70
[  289.181006]  ? trace_hardirqs_off_caller+0x310/0x310
[  289.186123]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  289.190355]  __run_timers+0x7e5/0xc70
[  289.194167]  ? timer_fixup_init+0x70/0x70
[  289.198316]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  289.203338]  ? zap_class+0x640/0x640
[  289.207065]  ? print_usage_bug+0xc0/0xc0
[  289.211130]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  289.216330]  ? find_held_lock+0x36/0x1c0
[  289.220397]  ? zap_class+0x640/0x640
[  289.224118]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.229664]  ? check_preemption_disabled+0x48/0x280
[  289.234694]  ? __lock_is_held+0xb5/0x140
[  289.238762]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.244300]  ? check_preemption_disabled+0x48/0x280
[  289.249323]  run_timer_softirq+0x52/0xb0
[  289.253385]  ? rcu_read_lock_sched_held+0x14f/0x180
[  289.258401]  __do_softirq+0x308/0xb7e
[  289.262208]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  289.266706]  ? lock_downgrade+0x900/0x900
[  289.270857]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  289.275970]  ? pvclock_read_flags+0x160/0x160
[  289.280466]  ? lapic_next_event+0x5a/0x90
[  289.284617]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.290174]  ? kvm_clock_read+0x18/0x30
[  289.294147]  ? kvm_sched_clock_read+0x9/0x20
[  289.298559]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.304099]  ? check_preemption_disabled+0x48/0x280
[  289.309128]  irq_exit+0x17f/0x1c0
[  289.312587]  smp_apic_timer_interrupt+0x1cb/0x760
[  289.317442]  ? smp_reschedule_interrupt+0x109/0x650
[  289.322489]  ? smp_call_function_single_interrupt+0x650/0x650
[  289.328376]  ? interrupt_entry+0xb5/0xc0
[  289.332439]  ? trace_hardirqs_off_caller+0xbb/0x310
[  289.337454]  ? trace_hardirqs_off_caller+0xbb/0x310
[  289.342473]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  289.347321]  ? trace_hardirqs_on_caller+0x310/0x310
[  289.352338]  ? trace_hardirqs_on_caller+0x310/0x310
[  289.357352]  ? task_prio+0x50/0x50
[  289.360896]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.366439]  ? check_preemption_disabled+0x48/0x280
[  289.371465]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  289.376317]  apic_timer_interrupt+0xf/0x20
[  289.380545]  </IRQ>
[  289.382784] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  289.387977] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  289.406877] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  289.414582] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  289.421847] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  289.429112] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  289.436390] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  289.443661] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  289.450959]  retint_kernel+0x1b/0x2d
[  289.454681] RIP: 0010:dump_stack+0x358/0x39d
[  289.459089] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  289.477988] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  289.485697] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  289.492967] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  289.500232] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  289.507525] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  289.514795] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  289.522087]  ? dump_stack+0x34f/0x39d
[  289.525903]  ? dump_stack_print_info.cold.1+0x20/0x20
[  289.531121]  ? mark_held_locks+0x130/0x130
[  289.535358]  ? mark_held_locks+0x130/0x130
[  289.539600]  dump_header+0x27b/0xf72
[  289.543324]  ? pagefault_out_of_memory+0x197/0x197
[  289.548270]  ? __lock_acquire+0x62f/0x4c20
[  289.552507]  ? print_usage_bug+0xc0/0xc0
[  289.556575]  ? zap_class+0x640/0x640
[  289.560307]  ? print_usage_bug+0xc0/0xc0
[  289.564407]  ? print_usage_bug+0xc0/0xc0
[  289.568504]  ? print_usage_bug+0xc0/0xc0
[  289.572589]  ? find_held_lock+0x36/0x1c0
[  289.576678]  ? mark_held_locks+0xc7/0x130
[  289.580832]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  289.585933]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  289.591036]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  289.595618]  ? trace_hardirqs_on+0xbd/0x310
[  289.599952]  ? kasan_check_read+0x11/0x20
[  289.604128]  ? ___ratelimit+0x3b4/0x672
[  289.608118]  ? trace_hardirqs_off_caller+0x310/0x310
[  289.613238]  ? trace_hardirqs_on+0x310/0x310
[  289.617676]  ? lock_downgrade+0x900/0x900
[  289.621846]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  289.626953]  ? ___ratelimit+0x3b9/0x672
[  289.630930]  ? idr_get_free+0xf70/0xf70
[  289.634907]  ? kasan_check_read+0x11/0x20
[  289.639057]  ? do_raw_spin_unlock+0xa7/0x330
[  289.643479]  oom_kill_process.cold.27+0x10/0x903
[  289.648236]  ? zap_class+0x640/0x640
[  289.651953]  ? _raw_spin_unlock+0x2c/0x50
[  289.656099]  ? oom_badness+0xe6/0xaa0
[  289.659899]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  289.664830]  ? kasan_check_read+0x11/0x20
[  289.668979]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.674259]  ? oom_evaluate_task+0x540/0x540
[  289.678689]  ? find_held_lock+0x36/0x1c0
[  289.682758]  ? out_of_memory+0x974/0x1430
[  289.686909]  ? lock_downgrade+0x900/0x900
[  289.691059]  ? check_preemption_disabled+0x48/0x280
[  289.696102]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  289.701046]  ? kasan_check_read+0x11/0x20
[  289.705196]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.710471]  ? rcu_softirq_qs+0x20/0x20
[  289.714446]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  289.719984]  ? oom_evaluate_task+0x302/0x540
[  289.724399]  out_of_memory+0xa84/0x1430
[  289.728395]  ? oom_killer_disable+0x3a0/0x3a0
[  289.732889]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  289.737825]  ? __ww_mutex_check_waiters+0x160/0x160
[  289.742860]  __alloc_pages_slowpath+0x232c/0x2de0
[  289.747732]  ? warn_alloc+0x120/0x120
[  289.751550]  ? mark_held_locks+0x130/0x130
[  289.755808]  ? find_get_entry+0xaae/0x1120
[  289.760069]  ? filemap_map_pages+0x1a20/0x1a20
[  289.764661]  ? zap_class+0x640/0x640
[  289.768383]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.773922]  ? check_preemption_disabled+0x48/0x280
[  289.778956]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  289.784493]  ? should_fail+0x22d/0xd01
[  289.788388]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  289.793491]  ? zap_class+0x640/0x640
[  289.797227]  ? __lock_is_held+0xb5/0x140
[  289.801302]  ? mark_held_locks+0x130/0x130
[  289.805542]  ? lock_release+0xa00/0xa00
[  289.809515]  ? perf_trace_sched_process_exec+0x860/0x860
[  289.814961]  ? xa_load+0x2ba/0x460
[  289.818504]  ? lock_downgrade+0x900/0x900
[  289.822693]  ? __might_sleep+0x95/0x190
[  289.826688]  __alloc_pages_nodemask+0xad8/0xea0
[  289.831364]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  289.836382]  ? __page_cache_alloc+0x191/0x5c0
[  289.840874]  ? xa_load+0x2e1/0x460
[  289.844419]  ? xa_clear_mark+0x40/0x40
[  289.848305]  ? zap_class+0x640/0x640
[  289.852042]  ? zap_class+0x640/0x640
[  289.855759]  ? zap_class+0x640/0x640
[  289.859474]  ? __do_page_cache_readahead+0x663/0x810
[  289.864581]  ? find_held_lock+0x36/0x1c0
[  289.868654]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  289.874217]  alloc_pages_current+0x173/0x350
[  289.878648]  __page_cache_alloc+0x38c/0x5c0
[  289.882981]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  289.887908]  ? kasan_check_read+0x11/0x20
[  289.892054]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.897333]  ? generic_perform_write+0x6a0/0x6a0
[  289.902103]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  289.907649]  ? check_preemption_disabled+0x48/0x280
[  289.912682]  filemap_fault+0x1595/0x25f0
[  289.916772]  ? __lock_page_or_retry+0xa00/0xa00
[  289.921444]  ? mark_held_locks+0x130/0x130
[  289.925694]  ? filemap_map_pages+0xd6b/0x1a20
[  289.930211]  ? lock_downgrade+0x900/0x900
[  289.934361]  ? check_preemption_disabled+0x48/0x280
[  289.939380]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  289.944359]  ? kasan_check_read+0x11/0x20
[  289.948506]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.953781]  ? rcu_softirq_qs+0x20/0x20
[  289.957770]  ? filemap_map_pages+0xd92/0x1a20
[  289.962279]  ? find_get_entries_tag+0x1400/0x1400
[  289.967186]  ? debug_object_destroy+0x2b0/0x2b0
[  289.971859]  ? lock_pi_update_atomic+0x150/0x150
[  289.976613]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.982170]  ? lock_acquire+0x1ed/0x520
[  289.986142]  ? ext4_filemap_fault+0x7a/0xad
[  289.990474]  ? lock_release+0xa00/0xa00
[  289.994441]  ? perf_trace_sched_process_exec+0x860/0x860
[  289.999891]  ? print_usage_bug+0xc0/0xc0
[  290.003953]  ? print_usage_bug+0xc0/0xc0
[  290.008035]  ? down_read+0x8d/0x120
[  290.011659]  ? ext4_filemap_fault+0x7a/0xad
[  290.015980]  ? __down_interruptible+0x700/0x700
[  290.020664]  ext4_filemap_fault+0x82/0xad
[  290.024813]  __do_fault+0x100/0x6b0
[  290.028444]  ? pmd_devmap_trans_unstable+0x220/0x220
[  290.033544]  ? mark_held_locks+0x130/0x130
[  290.037775]  ? mark_held_locks+0x130/0x130
[  290.042024]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  290.046800]  ? retint_kernel+0x2d/0x2d
[  290.050686]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  290.056225]  __handle_mm_fault+0x3ea0/0x5be0
[  290.060631]  ? perf_trace_lock+0x7a0/0x7a0
[  290.064889]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  290.069738]  ? __switch_to_asm+0x34/0x70
[  290.073802]  ? __switch_to_asm+0x34/0x70
[  290.077894]  ? zap_class+0x640/0x640
[  290.081619]  ? zap_class+0x640/0x640
[  290.085347]  ? __x64_sys_futex+0x53e/0x6a0
[  290.089599]  ? find_held_lock+0x36/0x1c0
[  290.093676]  ? handle_mm_fault+0x42a/0xc70
[  290.097951]  ? lock_downgrade+0x900/0x900
[  290.102116]  ? check_preemption_disabled+0x48/0x280
[  290.107148]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  290.112083]  ? kasan_check_read+0x11/0x20
[  290.116227]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  290.121513]  ? rcu_softirq_qs+0x20/0x20
[  290.125493]  ? trace_hardirqs_off_caller+0x310/0x310
[  290.130601]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  290.136137]  ? check_preemption_disabled+0x48/0x280
[  290.141187]  handle_mm_fault+0x54f/0xc70
[  290.145251]  ? __handle_mm_fault+0x5be0/0x5be0
[  290.149836]  ? find_vma+0x34/0x190
[  290.153409]  __do_page_fault+0x5e8/0xe60
[  290.157480]  ? trace_hardirqs_off+0xb8/0x310
[  290.161906]  do_page_fault+0xf2/0x7e0
[  290.165710]  ? vmalloc_sync_all+0x30/0x30
[  290.169866]  ? error_entry+0x70/0xd0
[  290.173584]  ? trace_hardirqs_off_caller+0xbb/0x310
[  290.178597]  ? trace_hardirqs_on_caller+0xc0/0x310
[  290.183528]  ? syscall_return_slowpath+0x5e0/0x5e0
[  290.188459]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  290.193299]  ? trace_hardirqs_on_caller+0x310/0x310
[  290.198317]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  290.203773]  ? prepare_exit_to_usermode+0x291/0x3b0
[  290.208787]  ? page_fault+0x8/0x30
[  290.212327]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  290.217174]  ? page_fault+0x8/0x30
[  290.220719]  page_fault+0x1e/0x30
[  290.224178] RIP: 0033:0x4290d7
[  290.227377] Code: Bad RIP value.
[  290.230740] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  290.236097] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  290.243373] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  290.250661] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  290.257926] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  290.265188] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  290.272496] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  290.272567] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  290.279783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  290.279792] Call Trace:
[  290.286367] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  290.295625]  <IRQ>
[  290.298198] syz-fuzzer cpuset=/ mems_allowed=0
[  290.308415]  dump_stack+0x244/0x39d
[  290.318759]  ? dump_stack_print_info.cold.1+0x20/0x20
[  290.323968]  warn_alloc.cold.116+0xb7/0x1bd
[  290.328325]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  290.333173]  ? lock_downgrade+0x900/0x900
[  290.337325]  ? trace_hardirqs_off+0xb8/0x310
[  290.341739]  ? trace_hardirqs_off+0xb8/0x310
[  290.346171]  __alloc_pages_slowpath+0x2651/0x2de0
[  290.351056]  ? warn_alloc+0x120/0x120
[  290.354860]  ? print_usage_bug+0xc0/0xc0
[  290.358920]  ? warn_alloc+0x120/0x120
[  290.362726]  ? warn_alloc+0x120/0x120
[  290.366529]  ? print_usage_bug+0xc0/0xc0
[  290.370591]  ? kvm_clock_read+0x18/0x30
[  290.374563]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  290.379580]  ? print_usage_bug+0xc0/0xc0
[  290.383648]  ? __lock_acquire+0x62f/0x4c20
[  290.387895]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  290.393430]  ? should_fail+0x22d/0xd01
[  290.397313]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  290.402594]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  290.407704]  ? __lock_acquire+0x62f/0x4c20
[  290.411943]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  290.417041]  ? __lock_acquire+0x62f/0x4c20
[  290.421279]  ? should_fail+0x22d/0xd01
[  290.425161]  ? rcu_irq_exit+0x1a2/0x390
[  290.429141]  ? mark_held_locks+0x130/0x130
[  290.433407]  ? mark_held_locks+0x130/0x130
[  290.437655]  ? mark_held_locks+0xc7/0x130
[  290.441809]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  290.446826]  ? zap_class+0x640/0x640
[  290.450540]  ? print_usage_bug+0xc0/0xc0
[  290.454604]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.460151]  ? check_preemption_disabled+0x48/0x280
[  290.465193]  ? __lock_is_held+0xb5/0x140
[  290.469260]  __alloc_pages_nodemask+0xad8/0xea0
[  290.473927]  ? zap_class+0x640/0x640
[  290.477685]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  290.482733]  ? find_held_lock+0x36/0x1c0
[  290.486805]  ? ____cache_alloc_node+0x1c7/0x1e0
[  290.491491]  ? lock_downgrade+0x900/0x900
[  290.495672]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.501214]  cache_grow_begin+0xa5/0x8c0
[  290.505297]  ? do_raw_spin_unlock+0xa7/0x330
[  290.509711]  fallback_alloc+0x204/0x2e0
[  290.513708]  ____cache_alloc_node+0x1c7/0x1e0
[  290.518263]  kmem_cache_alloc_node+0xe3/0x730
[  290.522762]  ? ipv6_get_ifaddr+0x42e/0x620
[  290.527023]  __alloc_skb+0x119/0x770
[  290.530735]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  290.536020]  ? netdev_alloc_frag+0x1f0/0x1f0
[  290.540445]  ? lock_downgrade+0x900/0x900
[  290.544601]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.550144]  ? refcount_sub_and_test_checked+0x203/0x310
[  290.555597]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  290.561049]  ? addrconf_rs_timer+0x690/0x690
[  290.565470]  ndisc_alloc_skb+0x144/0x340
[  290.569535]  ndisc_send_rs+0x331/0x6e0
[  290.573441]  addrconf_rs_timer+0x314/0x690
[  290.577727]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.581971]  call_timer_fn+0x272/0x920
[  290.585884]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.590126]  ? process_timeout+0x40/0x40
[  290.594203]  ? __run_timers+0x7da/0xc70
[  290.598187]  ? _raw_spin_unlock_irq+0x27/0x80
[  290.602695]  ? _raw_spin_unlock_irq+0x27/0x80
[  290.607191]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.611427]  ? lockdep_hardirqs_on+0x296/0x5b0
[  290.616019]  ? trace_hardirqs_on+0xbd/0x310
[  290.620698]  ? kasan_check_read+0x11/0x20
[  290.624845]  ? __run_timers+0x7da/0xc70
[  290.628820]  ? trace_hardirqs_off_caller+0x310/0x310
[  290.633926]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.638165]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.642398]  __run_timers+0x7e5/0xc70
[  290.646219]  ? timer_fixup_init+0x70/0x70
[  290.650372]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  290.655390]  ? zap_class+0x640/0x640
[  290.659136]  ? enqueue_hrtimer+0x1a5/0x560
[  290.663408]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  290.668618]  ? find_held_lock+0x36/0x1c0
[  290.672691]  ? zap_class+0x640/0x640
[  290.676405]  ? pvclock_read_flags+0x160/0x160
[  290.680917]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.686457]  ? check_preemption_disabled+0x48/0x280
[  290.691497]  ? __lock_is_held+0xb5/0x140
[  290.695558]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.701091]  ? check_preemption_disabled+0x48/0x280
[  290.706107]  run_timer_softirq+0x52/0xb0
[  290.710224]  ? rcu_read_lock_sched_held+0x14f/0x180
[  290.715234]  __do_softirq+0x308/0xb7e
[  290.719063]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  290.723572]  ? lock_downgrade+0x900/0x900
[  290.727724]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  290.732835]  ? pvclock_read_flags+0x160/0x160
[  290.737344]  ? lapic_next_event+0x5a/0x90
[  290.741491]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.747075]  ? kvm_clock_read+0x18/0x30
[  290.751050]  ? kvm_sched_clock_read+0x9/0x20
[  290.755488]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.761034]  ? check_preemption_disabled+0x48/0x280
[  290.766056]  irq_exit+0x17f/0x1c0
[  290.769509]  smp_apic_timer_interrupt+0x1cb/0x760
[  290.774349]  ? smp_reschedule_interrupt+0x109/0x650
[  290.779364]  ? smp_call_function_single_interrupt+0x650/0x650
[  290.785251]  ? interrupt_entry+0xb5/0xc0
[  290.789316]  ? trace_hardirqs_off_caller+0xbb/0x310
[  290.794329]  ? trace_hardirqs_off_caller+0xbb/0x310
[  290.799341]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  290.804202]  ? trace_hardirqs_on_caller+0x310/0x310
[  290.809216]  ? trace_hardirqs_on_caller+0x310/0x310
[  290.814230]  ? task_prio+0x50/0x50
[  290.817785]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.823337]  ? check_preemption_disabled+0x48/0x280
[  290.828358]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  290.833207]  apic_timer_interrupt+0xf/0x20
[  290.837431]  </IRQ>
[  290.839678] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  290.844617] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  290.863518] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  290.871220] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  290.878496] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  290.885779] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  290.893042] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  290.900306] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  290.907605]  skb_clone+0x1bb/0x500
[  290.911188]  ? skb_split+0x11e0/0x11e0
[  290.915075]  ? preempt_notifier_register+0x200/0x200
[  290.920181]  ? __switch_to_asm+0x34/0x70
[  290.924237]  ? __switch_to_asm+0x34/0x70
[  290.928306]  ? __switch_to_asm+0x40/0x70
[  290.932361]  ? __switch_to_asm+0x34/0x70
[  290.936435]  ? __switch_to_asm+0x40/0x70
[  290.940496]  ? __switch_to_asm+0x40/0x70
[  290.944557]  ? __switch_to_asm+0x34/0x70
[  290.948622]  ? __switch_to_asm+0x34/0x70
[  290.952699]  ? __switch_to_asm+0x40/0x70
[  290.956756]  ? __switch_to_asm+0x34/0x70
[  290.960820]  bpf_clone_redirect+0xb9/0x490
[  290.965063]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  290.970079]  ? __sched_text_start+0x8/0x8
[  290.974238]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  290.978816]  ? retint_kernel+0x2d/0x2d
[  290.982705]  ? trace_hardirqs_on_caller+0xc0/0x310
[  290.987647]  ? find_held_lock+0x36/0x1c0
[  290.991735]  ? lock_acquire+0x1ed/0x520
[  290.995739]  ? bpf_test_run+0x3cb/0x780
[  290.999712]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.005264]  ? check_preemption_disabled+0x48/0x280
[  291.010284]  ? kasan_check_read+0x11/0x20
[  291.014433]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.019706]  ? rcu_softirq_qs+0x20/0x20
[  291.023685]  ? preempt_schedule+0x4d/0x60
[  291.027836]  ? ___preempt_schedule+0x16/0x18
[  291.032271]  ? bpf_test_run+0x25d/0x780
[  291.036260]  ? netlink_diag_dump+0x2a0/0x2a0
[  291.040684]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  291.046241]  ? bpf_test_init.isra.10+0x70/0x100
[  291.050948]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  291.055724]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  291.060564]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  291.066101]  ? fput+0x130/0x1a0
[  291.069394]  ? __bpf_prog_get+0x9b/0x290
[  291.073461]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  291.078303]  ? bpf_prog_test_run+0x130/0x1a0
[  291.082717]  ? __x64_sys_bpf+0x3db/0x520
[  291.086777]  ? bpf_prog_get+0x20/0x20
[  291.090601]  ? do_syscall_64+0x1b9/0x820
[  291.094684]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  291.100050]  ? syscall_return_slowpath+0x5e0/0x5e0
[  291.104976]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  291.109820]  ? trace_hardirqs_on_caller+0x310/0x310
[  291.114842]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  291.119859]  ? prepare_exit_to_usermode+0x291/0x3b0
[  291.124880]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  291.129734]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  291.135123] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  291.135128] warn_alloc_show_mem: 1 callbacks suppressed
[  291.135135] Mem-Info:
[  291.142149] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  291.147519] active_anon:57128 inactive_anon:971 isolated_anon:0
[  291.147519]  active_file:40 inactive_file:20 isolated_file:0
[  291.147519]  unevictable:0 dirty:11 writeback:0 unstable:0
[  291.147519]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  291.147519]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  291.147519]  free:13615 free_pcp:64 free_cma:0
[  291.149894] Call Trace:
[  291.159286] Node 0 active_anon:228512kB inactive_anon:3884kB active_file:160kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196668kB dirty:44kB writeback:0kB shmem:20488kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 186368kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  291.192232]  <IRQ>
[  291.194814] 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
[  291.222753]  dump_stack+0x244/0x39d
[  291.224882] lowmem_reserve[]: 0 2818 6321 6321
[  291.250992]  ? dump_stack_print_info.cold.1+0x20/0x20
[  291.254587] Node 0 DMA32 free:24940kB min:30052kB low:37564kB high:45076kB active_anon:10244kB 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:0kB local_pcp:0kB free_cma:0kB
[  291.259181]  warn_alloc.cold.116+0xb7/0x1bd
[  291.264346] lowmem_reserve[]: 0 0 3503 3503
[  291.291842]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  291.296136] Node 0 Normal free:13612kB min:37364kB low:46704kB high:56044kB active_anon:218268kB inactive_anon:3884kB active_file:608kB inactive_file:500kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:2740kB bounce:0kB free_pcp:256kB local_pcp:256kB free_cma:0kB
[  291.300455]  ? lock_downgrade+0x900/0x900
[  291.305274] lowmem_reserve[]: 0 0 0 0
[  291.334418]  ? trace_hardirqs_off+0xb8/0x310
[  291.338535] 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
[  291.342343]  ? trace_hardirqs_off+0xb8/0x310
[  291.346728] Node 0 DMA32: 4*4kB (UM) 4*8kB (UM) 4*16kB (M) 6*32kB (UM) 3*64kB (M) 3*128kB (M) 3*256kB (M) 3*512kB (M) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 24688kB
[  291.360250]  __alloc_pages_slowpath+0x2651/0x2de0
[  291.364650] Node 0 Normal: 935*4kB (UME) 402*8kB (UME) 135*16kB (UME) 46*32kB (UM) 13*64kB (M) 1*128kB (M) 3*256kB (UM) 1*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 13852kB
[  291.379754]  ? warn_alloc+0x120/0x120
[  291.384553] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  291.400060]  ? print_usage_bug+0xc0/0xc0
[  291.403844] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  291.412674]  ? warn_alloc+0x120/0x120
[  291.416714] 5171 total pagecache pages
[  291.425285]  ? warn_alloc+0x120/0x120
[  291.429080] 0 pages in swap cache
[  291.432954]  ? print_usage_bug+0xc0/0xc0
[  291.436733] Swap cache stats: add 0, delete 0, find 0/0
[  291.440183]  ? kvm_clock_read+0x18/0x30
[  291.444217] Free swap  = 0kB
[  291.449572]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  291.453520] Total swap = 0kB
[  291.456545]  ? print_usage_bug+0xc0/0xc0
[  291.461535] 1965979 pages RAM
[  291.464544]  ? __lock_acquire+0x62f/0x4c20
[  291.468581] 0 pages HighMem/MovableOnly
[  291.471684]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  291.475895] 342854 pages reserved
[  291.479865]  ? should_fail+0x22d/0xd01
[  291.485374] 0 pages cma reserved
[  291.488825]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.492760] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  291.496049]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  291.501398] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  291.507790]  ? __lock_acquire+0x62f/0x4c20
[  291.512871] syz-executor2 cpuset=syz2 mems_allowed=0
[  291.523354]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  291.537754]  ? __lock_acquire+0x62f/0x4c20
[  291.541997]  ? should_fail+0x22d/0xd01
[  291.545882]  ? rcu_irq_exit+0x1a2/0x390
[  291.549870]  ? mark_held_locks+0x130/0x130
[  291.554112]  ? mark_held_locks+0x130/0x130
[  291.558352]  ? mark_held_locks+0xc7/0x130
[  291.562502]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  291.567519]  ? zap_class+0x640/0x640
[  291.571248]  ? print_usage_bug+0xc0/0xc0
[  291.575314]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.580855]  ? check_preemption_disabled+0x48/0x280
[  291.585883]  ? __lock_is_held+0xb5/0x140
[  291.589951]  __alloc_pages_nodemask+0xad8/0xea0
[  291.594623]  ? zap_class+0x640/0x640
[  291.598352]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  291.603469]  ? find_held_lock+0x36/0x1c0
[  291.607545]  ? ____cache_alloc_node+0x1c7/0x1e0
[  291.612219]  ? lock_downgrade+0x900/0x900
[  291.616379]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.621926]  cache_grow_begin+0xa5/0x8c0
[  291.625988]  ? do_raw_spin_unlock+0xa7/0x330
[  291.630406]  fallback_alloc+0x204/0x2e0
[  291.634386]  ____cache_alloc_node+0x1c7/0x1e0
[  291.638886]  kmem_cache_alloc_node+0xe3/0x730
[  291.643384]  ? ipv6_get_ifaddr+0x42e/0x620
[  291.647630]  __alloc_skb+0x119/0x770
[  291.651351]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.656634]  ? netdev_alloc_frag+0x1f0/0x1f0
[  291.661054]  ? lock_downgrade+0x900/0x900
[  291.665213]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.670751]  ? refcount_sub_and_test_checked+0x203/0x310
[  291.676209]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  291.681669]  ? addrconf_rs_timer+0x690/0x690
[  291.686099]  ndisc_alloc_skb+0x144/0x340
[  291.690192]  ndisc_send_rs+0x331/0x6e0
[  291.694103]  addrconf_rs_timer+0x314/0x690
[  291.698343]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.702591]  call_timer_fn+0x272/0x920
[  291.706478]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.710713]  ? process_timeout+0x40/0x40
[  291.714789]  ? mark_held_locks+0xc7/0x130
[  291.718955]  ? _raw_spin_unlock_irq+0x27/0x80
[  291.723453]  ? _raw_spin_unlock_irq+0x27/0x80
[  291.727945]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.732183]  ? lockdep_hardirqs_on+0x296/0x5b0
[  291.736772]  ? trace_hardirqs_on+0xbd/0x310
[  291.741098]  ? kasan_check_read+0x11/0x20
[  291.745249]  ? __run_timers+0x7da/0xc70
[  291.749228]  ? trace_hardirqs_off_caller+0x310/0x310
[  291.754337]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.758579]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.762813]  __run_timers+0x7e5/0xc70
[  291.766624]  ? timer_fixup_init+0x70/0x70
[  291.770787]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  291.775803]  ? zap_class+0x640/0x640
[  291.779526]  ? print_usage_bug+0xc0/0xc0
[  291.783592]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  291.788791]  ? find_held_lock+0x36/0x1c0
[  291.792861]  ? zap_class+0x640/0x640
[  291.796584]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.802122]  ? check_preemption_disabled+0x48/0x280
[  291.807148]  ? __lock_is_held+0xb5/0x140
[  291.811213]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.816756]  ? check_preemption_disabled+0x48/0x280
[  291.821791]  run_timer_softirq+0x52/0xb0
[  291.825856]  ? rcu_read_lock_sched_held+0x14f/0x180
[  291.830873]  __do_softirq+0x308/0xb7e
[  291.834679]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  291.839190]  ? lock_downgrade+0x900/0x900
[  291.843356]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  291.848467]  ? pvclock_read_flags+0x160/0x160
[  291.852965]  ? lapic_next_event+0x5a/0x90
[  291.857119]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.862683]  ? kvm_clock_read+0x18/0x30
[  291.866662]  ? kvm_sched_clock_read+0x9/0x20
[  291.871076]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.876614]  ? check_preemption_disabled+0x48/0x280
[  291.881651]  irq_exit+0x17f/0x1c0
[  291.885108]  smp_apic_timer_interrupt+0x1cb/0x760
[  291.889952]  ? smp_reschedule_interrupt+0x109/0x650
[  291.894972]  ? smp_call_function_single_interrupt+0x650/0x650
[  291.900862]  ? interrupt_entry+0xb5/0xc0
[  291.904923]  ? trace_hardirqs_off_caller+0xbb/0x310
[  291.909938]  ? trace_hardirqs_off_caller+0xbb/0x310
[  291.914955]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  291.919801]  ? trace_hardirqs_on_caller+0x310/0x310
[  291.924820]  ? trace_hardirqs_on_caller+0x310/0x310
[  291.929835]  ? task_prio+0x50/0x50
[  291.933378]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.938920]  ? check_preemption_disabled+0x48/0x280
[  291.943943]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  291.948806]  apic_timer_interrupt+0xf/0x20
[  291.953035]  </IRQ>
[  291.955309] RIP: 0010:preempt_schedule_irq+0xaf/0x140
[  291.960510] Code: 00 e8 15 2f 79 f9 e8 c0 15 a9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 5a 5e 75 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 30 5e
[  291.979421] RSP: 0018:ffff8881c1e8e100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  291.987127] RAX: 1ffffffff12a3f70 RBX: 0000000000000000 RCX: 1ffff110383c1986
[  291.994398] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c1e0cbbc
[  292.001665] RBP: ffff8881c1e8e128 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  292.008949] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: dffffc0000000000
[  292.016214] R13: fffffbfff12a3f6f R14: ffffffff8951fb80 R15: ffffffff8951fb78
[  292.023514]  retint_kernel+0x1b/0x2d
[  292.027231] RIP: 0010:dump_stack+0x358/0x39d
[  292.031649] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 81 39 ed f9 48 83 3d 89 2a 7c 01 00 0f 84 63 fe ff ff e8 fe b9 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 eb b9 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  292.050549] RSP: 0018:ffff8881c1e8e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
[  292.058254] RAX: ffff8881c1e0c340 RBX: 1ffffffff12a3f6e RCX: 1ffff110383c1986
[  292.065521] RDX: 0000000000000000 RSI: ffffffff87d5d0f2 RDI: 0000000000000293
[  292.072788] RBP: ffff8881c1e8e290 R08: ffff8881c1e0cc30 R09: 0000000000000006
[  292.080053] R10: 0000000000000000 R11: ffff8881c1e0c340 R12: 1ffff110383d1c45
[  292.087364] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  292.094659]  ? dump_stack+0x34f/0x39d
[  292.098477]  ? dump_stack_print_info.cold.1+0x20/0x20
[  292.103678]  ? mark_held_locks+0x130/0x130
[  292.107916]  ? mark_held_locks+0x130/0x130
[  292.112155]  dump_header+0x27b/0xf72
[  292.115887]  ? pagefault_out_of_memory+0x197/0x197
[  292.120829]  ? __lock_acquire+0x62f/0x4c20
[  292.125068]  ? print_usage_bug+0xc0/0xc0
[  292.129136]  ? zap_class+0x640/0x640
[  292.132863]  ? print_usage_bug+0xc0/0xc0
[  292.136926]  ? print_usage_bug+0xc0/0xc0
[  292.140992]  ? print_usage_bug+0xc0/0xc0
[  292.145062]  ? find_held_lock+0x36/0x1c0
[  292.149135]  ? mark_held_locks+0xc7/0x130
[  292.153289]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  292.158393]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  292.163500]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  292.168087]  ? trace_hardirqs_on+0xbd/0x310
[  292.172408]  ? kasan_check_read+0x11/0x20
[  292.176556]  ? ___ratelimit+0x3b4/0x672
[  292.180535]  ? trace_hardirqs_off_caller+0x310/0x310
[  292.185647]  ? trace_hardirqs_on+0x310/0x310
[  292.190074]  ? lock_downgrade+0x900/0x900
[  292.194227]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  292.199332]  ? ___ratelimit+0x3b9/0x672
[  292.203308]  ? idr_get_free+0xf70/0xf70
[  292.207280]  ? kasan_check_read+0x11/0x20
[  292.211426]  ? do_raw_spin_unlock+0xa7/0x330
[  292.215846]  oom_kill_process.cold.27+0x10/0x903
[  292.220602]  ? zap_class+0x640/0x640
[  292.224331]  ? _raw_spin_unlock+0x2c/0x50
[  292.228480]  ? oom_badness+0xe6/0xaa0
[  292.232310]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  292.237252]  ? kasan_check_read+0x11/0x20
[  292.241400]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  292.246679]  ? oom_evaluate_task+0x540/0x540
[  292.251098]  ? find_held_lock+0x36/0x1c0
[  292.255184]  ? out_of_memory+0x974/0x1430
[  292.259333]  ? lock_downgrade+0x900/0x900
[  292.263485]  ? check_preemption_disabled+0x48/0x280
[  292.268513]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  292.273458]  ? kasan_check_read+0x11/0x20
[  292.277605]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  292.282885]  ? rcu_softirq_qs+0x20/0x20
[  292.286865]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.292401]  ? oom_evaluate_task+0x302/0x540
[  292.296814]  out_of_memory+0xa84/0x1430
[  292.300797]  ? oom_killer_disable+0x3a0/0x3a0
[  292.305297]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  292.310232]  ? __ww_mutex_check_waiters+0x160/0x160
[  292.315264]  __alloc_pages_slowpath+0x232c/0x2de0
[  292.320141]  ? warn_alloc+0x120/0x120
[  292.323943]  ? mark_held_locks+0x130/0x130
[  292.328188]  ? find_get_entry+0xaae/0x1120
[  292.332437]  ? filemap_map_pages+0x1a20/0x1a20
[  292.337023]  ? zap_class+0x640/0x640
[  292.340743]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.346286]  ? check_preemption_disabled+0x48/0x280
[  292.351304]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.356847]  ? should_fail+0x22d/0xd01
[  292.360756]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  292.365859]  ? zap_class+0x640/0x640
[  292.369595]  ? __lock_is_held+0xb5/0x140
[  292.373669]  ? mark_held_locks+0x130/0x130
[  292.377912]  ? lock_release+0xa00/0xa00
[  292.381890]  ? perf_trace_sched_process_exec+0x860/0x860
[  292.387355]  ? xa_load+0x2ba/0x460
[  292.390894]  ? lock_downgrade+0x900/0x900
[  292.395074]  ? __might_sleep+0x95/0x190
[  292.399058]  __alloc_pages_nodemask+0xad8/0xea0
[  292.403738]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  292.408771]  ? __page_cache_alloc+0x191/0x5c0
[  292.413269]  ? xa_load+0x2e1/0x460
[  292.416813]  ? xa_clear_mark+0x40/0x40
[  292.420707]  ? zap_class+0x640/0x640
[  292.424431]  ? zap_class+0x640/0x640
[  292.428150]  ? zap_class+0x640/0x640
[  292.431873]  ? __do_page_cache_readahead+0x663/0x810
[  292.436982]  ? find_held_lock+0x36/0x1c0
[  292.441050]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  292.446598]  alloc_pages_current+0x173/0x350
[  292.451013]  __page_cache_alloc+0x38c/0x5c0
[  292.455339]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  292.460266]  ? kasan_check_read+0x11/0x20
[  292.464415]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  292.469696]  ? generic_perform_write+0x6a0/0x6a0
[  292.474455]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.479996]  ? check_preemption_disabled+0x48/0x280
[  292.485021]  filemap_fault+0x1595/0x25f0
[  292.489098]  ? __lock_page_or_retry+0xa00/0xa00
[  292.493774]  ? mark_held_locks+0x130/0x130
[  292.498019]  ? filemap_map_pages+0xd6b/0x1a20
[  292.502519]  ? lock_downgrade+0x900/0x900
[  292.506677]  ? check_preemption_disabled+0x48/0x280
[  292.511702]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  292.516643]  ? kasan_check_read+0x11/0x20
[  292.520798]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  292.526078]  ? rcu_softirq_qs+0x20/0x20
[  292.530067]  ? filemap_map_pages+0xd92/0x1a20
[  292.534580]  ? find_get_entries_tag+0x1400/0x1400
[  292.539432]  ? debug_object_destroy+0x2b0/0x2b0
[  292.544103]  ? lock_pi_update_atomic+0x150/0x150
[  292.548858]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.554421]  ? lock_acquire+0x1ed/0x520
[  292.558393]  ? ext4_filemap_fault+0x7a/0xad
[  292.562721]  ? lock_release+0xa00/0xa00
[  292.566695]  ? perf_trace_sched_process_exec+0x860/0x860
[  292.572146]  ? print_usage_bug+0xc0/0xc0
[  292.576213]  ? print_usage_bug+0xc0/0xc0
[  292.580285]  ? down_read+0x8d/0x120
[  292.583921]  ? ext4_filemap_fault+0x7a/0xad
[  292.588243]  ? __down_interruptible+0x700/0x700
[  292.592921]  ext4_filemap_fault+0x82/0xad
[  292.597086]  __do_fault+0x100/0x6b0
[  292.600718]  ? pmd_devmap_trans_unstable+0x220/0x220
[  292.605828]  ? mark_held_locks+0x130/0x130
[  292.610063]  ? mark_held_locks+0x130/0x130
[  292.614298]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  292.619061]  ? retint_kernel+0x2d/0x2d
[  292.622953]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.628496]  __handle_mm_fault+0x3ea0/0x5be0
[  292.632914]  ? perf_trace_lock+0x7a0/0x7a0
[  292.637180]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  292.642045]  ? __switch_to_asm+0x34/0x70
[  292.646103]  ? __switch_to_asm+0x34/0x70
[  292.650183]  ? zap_class+0x640/0x640
[  292.653897]  ? zap_class+0x640/0x640
[  292.657633]  ? __x64_sys_futex+0x53e/0x6a0
[  292.661914]  ? find_held_lock+0x36/0x1c0
[  292.665984]  ? handle_mm_fault+0x42a/0xc70
[  292.670220]  ? lock_downgrade+0x900/0x900
[  292.674369]  ? check_preemption_disabled+0x48/0x280
[  292.679390]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  292.684468]  ? kasan_check_read+0x11/0x20
[  292.688622]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  292.693906]  ? rcu_softirq_qs+0x20/0x20
[  292.697885]  ? trace_hardirqs_off_caller+0x310/0x310
[  292.703077]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.708616]  ? check_preemption_disabled+0x48/0x280
[  292.713667]  handle_mm_fault+0x54f/0xc70
[  292.717738]  ? __handle_mm_fault+0x5be0/0x5be0
[  292.722326]  ? find_vma+0x34/0x190
[  292.725874]  __do_page_fault+0x5e8/0xe60
[  292.729937]  ? trace_hardirqs_off+0xb8/0x310
[  292.734364]  do_page_fault+0xf2/0x7e0
[  292.738170]  ? vmalloc_sync_all+0x30/0x30
[  292.742342]  ? error_entry+0x70/0xd0
[  292.746056]  ? trace_hardirqs_off_caller+0xbb/0x310
[  292.751070]  ? trace_hardirqs_on_caller+0xc0/0x310
[  292.756527]  ? syscall_return_slowpath+0x5e0/0x5e0
[  292.761459]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  292.766303]  ? trace_hardirqs_on_caller+0x310/0x310
[  292.771333]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  292.776789]  ? prepare_exit_to_usermode+0x291/0x3b0
[  292.781821]  ? page_fault+0x8/0x30
[  292.785367]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  292.790217]  ? page_fault+0x8/0x30
[  292.793771]  page_fault+0x1e/0x30
[  292.797224] RIP: 0033:0x4290d7
[  292.800433] Code: Bad RIP value.
[  292.803793] RSP: 002b:000000c420023ea8 EFLAGS: 00010202
[  292.809152] RAX: ffffffffffffff92 RBX: 000000003b95fda2 RCX: 000000000045ddf3
[  292.816450] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  292.823715] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  292.830985] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  292.838276] R13: 0000000000000021 R14: 000000000045b6a0 R15: 0000000000000000
[  292.845582] CPU: 0 PID: 8973 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #164
[  292.845656] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  292.852858] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  292.852864] Call Trace:
[  292.852870]  <IRQ>
[  292.852889]  dump_stack+0x244/0x39d
[  292.852908]  ? dump_stack_print_info.cold.1+0x20/0x20
[  292.859432] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  292.868740]  warn_alloc.cold.116+0xb7/0x1bd
[  292.871293] syz-fuzzer cpuset=/ mems_allowed=0
[  292.873438]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  292.906151]  ? lock_downgrade+0x900/0x900
[  292.910311]  ? trace_hardirqs_off+0xb8/0x310
[  292.914731]  ? trace_hardirqs_off+0xb8/0x310
[  292.919156]  __alloc_pages_slowpath+0x2651/0x2de0
[  292.924035]  ? warn_alloc+0x120/0x120
[  292.927839]  ? print_usage_bug+0xc0/0xc0
[  292.931923]  ? warn_alloc+0x120/0x120
[  292.935745]  ? warn_alloc+0x120/0x120
[  292.939566]  ? print_usage_bug+0xc0/0xc0
[  292.943631]  ? kvm_clock_read+0x18/0x30
[  292.947621]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  292.952667]  ? print_usage_bug+0xc0/0xc0
[  292.956738]  ? __lock_acquire+0x62f/0x4c20
[  292.960998]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.966541]  ? should_fail+0x22d/0xd01
[  292.970430]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  292.975712]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  292.980823]  ? __lock_acquire+0x62f/0x4c20
[  292.985078]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  292.990198]  ? __lock_acquire+0x62f/0x4c20
[  292.994435]  ? should_fail+0x22d/0xd01
[  292.998339]  ? rcu_irq_exit+0x1a2/0x390
[  293.002329]  ? mark_held_locks+0x130/0x130
[  293.006574]  ? mark_held_locks+0x130/0x130
[  293.010819]  ? mark_held_locks+0xc7/0x130
[  293.014971]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  293.019988]  ? zap_class+0x640/0x640
[  293.023706]  ? print_usage_bug+0xc0/0xc0
[  293.027792]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.033332]  ? check_preemption_disabled+0x48/0x280
[  293.038359]  ? __lock_is_held+0xb5/0x140
[  293.042438]  __alloc_pages_nodemask+0xad8/0xea0
[  293.047109]  ? zap_class+0x640/0x640
[  293.050841]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  293.055869]  ? find_held_lock+0x36/0x1c0
[  293.059944]  ? ____cache_alloc_node+0x1c7/0x1e0
[  293.064616]  ? lock_downgrade+0x900/0x900
[  293.068793]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.074340]  cache_grow_begin+0xa5/0x8c0
[  293.078424]  ? do_raw_spin_unlock+0xa7/0x330
[  293.082847]  fallback_alloc+0x204/0x2e0
[  293.086831]  ____cache_alloc_node+0x1c7/0x1e0
[  293.091350]  kmem_cache_alloc_node+0xe3/0x730
[  293.095857]  ? ipv6_get_ifaddr+0x42e/0x620
[  293.100107]  __alloc_skb+0x119/0x770
[  293.103822]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  293.109121]  ? netdev_alloc_frag+0x1f0/0x1f0
[  293.113579]  ? lock_downgrade+0x900/0x900
[  293.117733]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.123272]  ? refcount_sub_and_test_checked+0x203/0x310
[  293.128729]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  293.134182]  ? addrconf_rs_timer+0x690/0x690
[  293.138604]  ndisc_alloc_skb+0x144/0x340
[  293.142707]  ndisc_send_rs+0x331/0x6e0
[  293.146605]  addrconf_rs_timer+0x314/0x690
[  293.150856]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.155103]  call_timer_fn+0x272/0x920
[  293.158990]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.163227]  ? process_timeout+0x40/0x40
[  293.167298]  ? __run_timers+0x7da/0xc70
[  293.171276]  ? _raw_spin_unlock_irq+0x27/0x80
[  293.175773]  ? _raw_spin_unlock_irq+0x27/0x80
[  293.180284]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.184533]  ? lockdep_hardirqs_on+0x296/0x5b0
[  293.189136]  ? trace_hardirqs_on+0xbd/0x310
[  293.193477]  ? kasan_check_read+0x11/0x20
[  293.197625]  ? __run_timers+0x7da/0xc70
[  293.201616]  ? trace_hardirqs_off_caller+0x310/0x310
[  293.206735]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.210979]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.215213]  __run_timers+0x7e5/0xc70
[  293.219027]  ? timer_fixup_init+0x70/0x70
[  293.223181]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  293.228202]  ? zap_class+0x640/0x640
[  293.231922]  ? enqueue_hrtimer+0x1a5/0x560
[  293.236160]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  293.241363]  ? find_held_lock+0x36/0x1c0
[  293.245446]  ? zap_class+0x640/0x640
[  293.249183]  ? pvclock_read_flags+0x160/0x160
[  293.253687]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.259232]  ? check_preemption_disabled+0x48/0x280
[  293.264257]  ? __lock_is_held+0xb5/0x140
[  293.268321]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.273862]  ? check_preemption_disabled+0x48/0x280
[  293.278895]  run_timer_softirq+0x52/0xb0
[  293.282960]  ? rcu_read_lock_sched_held+0x14f/0x180
[  293.287980]  __do_softirq+0x308/0xb7e
[  293.291803]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  293.296296]  ? lock_downgrade+0x900/0x900
[  293.300451]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  293.305564]  ? pvclock_read_flags+0x160/0x160
[  293.310063]  ? lapic_next_event+0x5a/0x90
[  293.314218]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.319765]  ? kvm_clock_read+0x18/0x30
[  293.323743]  ? kvm_sched_clock_read+0x9/0x20
[  293.328156]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.333703]  ? check_preemption_disabled+0x48/0x280
[  293.338731]  irq_exit+0x17f/0x1c0
[  293.342190]  smp_apic_timer_interrupt+0x1cb/0x760
[  293.347136]  ? smp_reschedule_interrupt+0x109/0x650
[  293.352154]  ? smp_call_function_single_interrupt+0x650/0x650
[  293.358055]  ? interrupt_entry+0xb5/0xc0
[  293.362119]  ? trace_hardirqs_off_caller+0xbb/0x310
[  293.367133]  ? trace_hardirqs_off_caller+0xbb/0x310
[  293.372150]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  293.376997]  ? trace_hardirqs_on_caller+0x310/0x310
[  293.382013]  ? trace_hardirqs_on_caller+0x310/0x310
[  293.387028]  ? task_prio+0x50/0x50
[  293.390571]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.396110]  ? check_preemption_disabled+0x48/0x280
[  293.401133]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  293.405985]  apic_timer_interrupt+0xf/0x20
[  293.410213]  </IRQ>
[  293.412452] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  293.417397] Code: 7e 0f 85 cf fe ff ff e8 66 cb 3d ff e9 c5 fe ff ff e8 0d 01 c3 ff 48 83 3d a5 49 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 02 f3
[  293.436294] RSP: 0000:ffff888193cb7718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  293.444001] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  293.451266] RDX: 0000000000000000 RSI: ffff888194944d80 RDI: 0000000000000282
[  293.458539] RBP: ffff888193cb7780 R08: ffff888194944500 R09: 0000000000000000
[  293.465808] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  293.473076] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  293.480426]  skb_clone+0x1bb/0x500
[  293.483984]  ? skb_split+0x11e0/0x11e0
[  293.487878]  ? preempt_notifier_register+0x200/0x200
[  293.492999]  ? __switch_to_asm+0x34/0x70
[  293.497058]  ? __switch_to_asm+0x34/0x70
[  293.501131]  ? __switch_to_asm+0x40/0x70
[  293.505193]  ? __switch_to_asm+0x34/0x70
[  293.509252]  ? __switch_to_asm+0x40/0x70
[  293.513315]  ? __switch_to_asm+0x40/0x70
[  293.517380]  ? __switch_to_asm+0x34/0x70
[  293.521438]  ? __switch_to_asm+0x34/0x70
[  293.525501]  ? __switch_to_asm+0x40/0x70
[  293.529574]  ? __switch_to_asm+0x34/0x70
[  293.533649]  bpf_clone_redirect+0xb9/0x490
[  293.537899]  bpf_prog_79bab0a1566dd526+0x81c/0x1000
[  293.542935]  ? __sched_text_start+0x8/0x8
[  293.547088]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  293.551680]  ? retint_kernel+0x2d/0x2d
[  293.555573]  ? trace_hardirqs_on_caller+0xc0/0x310
[  293.560507]  ? find_held_lock+0x36/0x1c0
[  293.564578]  ? lock_acquire+0x1ed/0x520
[  293.568568]  ? bpf_test_run+0x3cb/0x780
[  293.572547]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.578088]  ? check_preemption_disabled+0x48/0x280
[  293.583115]  ? kasan_check_read+0x11/0x20
[  293.587263]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  293.592540]  ? rcu_softirq_qs+0x20/0x20
[  293.596517]  ? preempt_schedule+0x4d/0x60
[  293.600682]  ? ___preempt_schedule+0x16/0x18
[  293.605104]  ? bpf_test_run+0x25d/0x780
[  293.609095]  ? netlink_diag_dump+0x2a0/0x2a0
[  293.613513]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  293.619055]  ? bpf_test_init.isra.10+0x70/0x100
[  293.623730]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  293.628499]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  293.633342]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  293.638885]  ? fput+0x130/0x1a0
[  293.642171]  ? __bpf_prog_get+0x9b/0x290
[  293.646245]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  293.651090]  ? bpf_prog_test_run+0x130/0x1a0
[  293.655504]  ? __x64_sys_bpf+0x3db/0x520
[  293.659566]  ? bpf_prog_get+0x20/0x20
[  293.663389]  ? do_syscall_64+0x1b9/0x820
[  293.667471]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  293.672838]  ? syscall_return_slowpath+0x5e0/0x5e0
[  293.677796]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  293.682670]  ? trace_hardirqs_on_caller+0x310/0x310
[  293.687714]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  293.692750]  ? prepare_exit_to_usermode+0x291/0x3b0
[  293.697772]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  293.702653]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  293.708074] CPU: 1 PID: 6021 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #164
[  293.708080] warn_alloc_show_mem: 1 callbacks suppressed
[  293.708086] Mem-Info:
[  293.715112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  293.720513] active_anon:57128 inactive_anon:971 isolated_anon:0
[  293.720513]  active_file:40 inactive_file:20 isolated_file:0
[  293.720513]  unevictable:0 dirty:11 writeback:0 unstable:0
[  293.720513]  slab_reclaimable:9608 slab_unreclaimable:1449697
[  293.720513]  mapped:49167 shmem:5122 pagetables:685 bounce:0
[  293.720513]  free:13615 free_pcp:64 free_cma:0
[  293.722887] Call Trace: