 000000000045ddf3
[  360.910344] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  360.917627] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  360.924911] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  360.932194] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  360.939502] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  360.939504] Mem-Info:
[  360.939536] active_anon:45985 inactive_anon:296 isolated_anon:0
[  360.939536]  active_file:15 inactive_file:8 isolated_file:0
[  360.939536]  unevictable:0 dirty:0 writeback:0 unstable:0
[  360.939536]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  360.939536]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  360.939536]  free:13771 free_pcp:249 free_cma:0
[  360.946891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  360.949359] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  360.982127] Call Trace:
[  360.991492] 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
[  361.019171]  <IRQ>
[  361.021752] lowmem_reserve[]: 0 2818 6321 6321
[  361.047878]  dump_stack+0x244/0x39d
[  361.050020] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  361.054623]  ? dump_stack_print_info.cold.1+0x20/0x20
[  361.058220] lowmem_reserve[]: 0 0 3503 3503
[  361.085752]  warn_alloc.cold.116+0xb7/0x1bd
[  361.090925] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  361.095259]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  361.099548] lowmem_reserve[]: 0 0 0 0
[  361.128567]  ? lock_downgrade+0x900/0x900
[  361.133399] 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
[  361.137210]  ? trace_hardirqs_off+0xb8/0x310
[  361.141339] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  361.154902]  ? trace_hardirqs_off+0xb8/0x310
[  361.159305] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  361.174408]  __alloc_pages_slowpath+0x2651/0x2de0
[  361.178802] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  361.194497]  ? warn_alloc+0x120/0x120
[  361.199345] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  361.208177]  ? print_usage_bug+0xc0/0xc0
[  361.211950] 376 total pagecache pages
[  361.220532]  ? warn_alloc+0x120/0x120
[  361.224574] 0 pages in swap cache
[  361.228367]  ? warn_alloc+0x120/0x120
[  361.232150] Swap cache stats: add 0, delete 0, find 0/0
[  361.235601]  ? print_usage_bug+0xc0/0xc0
[  361.239399] Free swap  = 0kB
[  361.244797]  ? kvm_clock_read+0x18/0x30
[  361.248821] Total swap = 0kB
[  361.248829] 1965979 pages RAM
[  361.251861]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  361.255806] 0 pages HighMem/MovableOnly
[  361.258835]  ? print_usage_bug+0xc0/0xc0
[  361.261930] 342854 pages reserved
[  361.266944]  ? __lock_acquire+0x62f/0x4c20
[  361.270888] 0 pages cma reserved
[  361.274952]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  361.278575] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  361.282670]  ? should_fail+0x22d/0xd01
[  361.286016] syz-fuzzer cpuset=/ mems_allowed=0
[  361.291565]  ? __lock_acquire+0x62f/0x4c20
[  361.314490]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  361.319624]  ? __lock_acquire+0x62f/0x4c20
[  361.323875]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  361.328981]  ? __lock_acquire+0x62f/0x4c20
[  361.333230]  ? should_fail+0x22d/0xd01
[  361.337132]  ? mark_held_locks+0x130/0x130
[  361.341377]  ? mark_held_locks+0x130/0x130
[  361.345637]  ? zap_class+0x640/0x640
[  361.349371]  ? print_usage_bug+0xc0/0xc0
[  361.353442]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.358999]  ? check_preemption_disabled+0x48/0x280
[  361.364063]  ? __lock_is_held+0xb5/0x140
[  361.368133]  __alloc_pages_nodemask+0xad8/0xea0
[  361.372806]  ? zap_class+0x640/0x640
[  361.376532]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  361.381563]  ? find_held_lock+0x36/0x1c0
[  361.385639]  ? ____cache_alloc_node+0x1c7/0x1e0
[  361.390373]  ? lock_downgrade+0x900/0x900
[  361.394533]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.400086]  cache_grow_begin+0xa5/0x8c0
[  361.404151]  ? do_raw_spin_unlock+0xa7/0x330
[  361.408598]  fallback_alloc+0x204/0x2e0
[  361.412583]  ____cache_alloc_node+0x1c7/0x1e0
[  361.417089]  kmem_cache_alloc_node+0xe3/0x730
[  361.421589]  ? ipv6_get_ifaddr+0x42e/0x620
[  361.425836]  __alloc_skb+0x119/0x770
[  361.429557]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  361.434848]  ? netdev_alloc_frag+0x1f0/0x1f0
[  361.439266]  ? lock_downgrade+0x900/0x900
[  361.443425]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.449022]  ? refcount_sub_and_test_checked+0x203/0x310
[  361.454517]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  361.459976]  ? addrconf_rs_timer+0x690/0x690
[  361.464412]  ndisc_alloc_skb+0x144/0x340
[  361.468487]  ndisc_send_rs+0x331/0x6e0
[  361.472402]  addrconf_rs_timer+0x314/0x690
[  361.476648]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  361.480902]  call_timer_fn+0x272/0x920
[  361.484796]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  361.489049]  ? process_timeout+0x40/0x40
[  361.493122]  ? __run_timers+0x7da/0xc70
[  361.497154]  ? _raw_spin_unlock_irq+0x27/0x80
[  361.501667]  ? _raw_spin_unlock_irq+0x27/0x80
[  361.506180]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  361.510420]  ? lockdep_hardirqs_on+0x296/0x5b0
[  361.515019]  ? trace_hardirqs_on+0xbd/0x310
[  361.519353]  ? kasan_check_read+0x11/0x20
[  361.523509]  ? __run_timers+0x7da/0xc70
[  361.527490]  ? trace_hardirqs_off_caller+0x310/0x310
[  361.532612]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  361.536850]  __run_timers+0x7e5/0xc70
[  361.540669]  ? timer_fixup_init+0x70/0x70
[  361.544823]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  361.549858]  ? zap_class+0x640/0x640
[  361.553585]  ? enqueue_hrtimer+0x1a5/0x560
[  361.557828]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  361.563046]  ? find_held_lock+0x36/0x1c0
[  361.567122]  ? zap_class+0x640/0x640
[  361.570846]  ? pvclock_read_flags+0x160/0x160
[  361.575363]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.580913]  ? check_preemption_disabled+0x48/0x280
[  361.585948]  ? __lock_is_held+0xb5/0x140
[  361.590025]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.595574]  ? check_preemption_disabled+0x48/0x280
[  361.600604]  run_timer_softirq+0x52/0xb0
[  361.604672]  ? rcu_read_lock_sched_held+0x14f/0x180
[  361.609694]  __do_softirq+0x308/0xb7e
[  361.613504]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  361.618010]  ? lock_downgrade+0x900/0x900
[  361.622172]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  361.627288]  ? pvclock_read_flags+0x160/0x160
[  361.631796]  ? lapic_next_event+0x5a/0x90
[  361.635955]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.641518]  ? kvm_clock_read+0x18/0x30
[  361.645519]  ? kvm_sched_clock_read+0x9/0x20
[  361.649937]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.655481]  ? check_preemption_disabled+0x48/0x280
[  361.660513]  irq_exit+0x17f/0x1c0
[  361.663975]  smp_apic_timer_interrupt+0x1cb/0x760
[  361.668849]  ? smp_reschedule_interrupt+0x109/0x650
[  361.673882]  ? smp_call_function_single_interrupt+0x650/0x650
[  361.679786]  ? interrupt_entry+0xb5/0xc0
[  361.683876]  ? trace_hardirqs_off_caller+0xbb/0x310
[  361.688900]  ? trace_hardirqs_off_caller+0xbb/0x310
[  361.693923]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  361.698780]  ? trace_hardirqs_on_caller+0x310/0x310
[  361.703801]  ? trace_hardirqs_on_caller+0x310/0x310
[  361.708821]  ? task_prio+0x50/0x50
[  361.712373]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.717930]  ? check_preemption_disabled+0x48/0x280
[  361.722986]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  361.727859]  apic_timer_interrupt+0xf/0x20
[  361.732091]  </IRQ>
[  361.734348] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  361.739287] 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 42 f3
[  361.758372] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  361.766096] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  361.773408] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  361.780702] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  361.787999] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  361.795293] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  361.802626]  skb_clone+0x1bb/0x500
[  361.806195]  ? skb_split+0x11e0/0x11e0
[  361.810093]  ? check_preemption_disabled+0x48/0x280
[  361.815127]  ? __this_cpu_preempt_check+0x1c/0x20
[  361.819976]  ? __bpf_redirect+0x55b/0xb60
[  361.824143]  ? __switch_to_asm+0x34/0x70
[  361.828204]  ? __switch_to_asm+0x40/0x70
[  361.832278]  bpf_clone_redirect+0xb9/0x490
[  361.836526]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  361.841556]  ? __sched_text_start+0x8/0x8
[  361.845719]  ? find_held_lock+0x36/0x1c0
[  361.849805]  ? lock_acquire+0x1ed/0x520
[  361.853797]  ? bpf_test_run+0x3cb/0x780
[  361.857789]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.863347]  ? check_preemption_disabled+0x48/0x280
[  361.868377]  ? kasan_check_read+0x11/0x20
[  361.872530]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  361.877812]  ? rcu_softirq_qs+0x20/0x20
[  361.881793]  ? preempt_schedule+0x4d/0x60
[  361.885947]  ? ___preempt_schedule+0x16/0x18
[  361.890368]  ? bpf_test_run+0x25d/0x780
[  361.894361]  ? netlink_diag_dump+0x2a0/0x2a0
[  361.898778]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  361.904320]  ? bpf_test_init.isra.10+0x70/0x100
[  361.909010]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  361.913787]  ? bpf_test_finish.isra.9+0x260/0x260
[  361.918635]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  361.924221]  ? fput+0x130/0x1a0
[  361.927505]  ? __bpf_prog_get+0x9b/0x290
[  361.931588]  ? bpf_test_finish.isra.9+0x260/0x260
[  361.936457]  ? bpf_prog_test_run+0x130/0x1a0
[  361.940876]  ? __x64_sys_bpf+0x3db/0x520
[  361.944972]  ? bpf_prog_get+0x20/0x20
[  361.948858]  ? do_syscall_64+0x1b9/0x820
[  361.952923]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  361.958292]  ? syscall_return_slowpath+0x5e0/0x5e0
[  361.963222]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  361.968069]  ? trace_hardirqs_on_caller+0x310/0x310
[  361.973094]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  361.978121]  ? prepare_exit_to_usermode+0x291/0x3b0
[  361.983185]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  361.988041]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  361.993426] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  361.993512] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  362.000440] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  362.000446] Call Trace:
[  362.000452]  <IRQ>
[  362.000473]  dump_stack+0x244/0x39d
[  362.000491]  ? dump_stack_print_info.cold.1+0x20/0x20
[  362.000517]  warn_alloc.cold.116+0xb7/0x1bd
[  362.007052] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  362.016361]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  362.018929] syz-executor0 cpuset=syz0 mems_allowed=0
[  362.021078]  ? lock_downgrade+0x900/0x900
[  362.058713]  ? trace_hardirqs_off+0xb8/0x310
[  362.063149]  ? trace_hardirqs_off+0xb8/0x310
[  362.067573]  __alloc_pages_slowpath+0x2651/0x2de0
[  362.072446]  ? warn_alloc+0x120/0x120
[  362.076254]  ? print_usage_bug+0xc0/0xc0
[  362.080321]  ? warn_alloc+0x120/0x120
[  362.084131]  ? alloc_pages_current+0x173/0x350
[  362.088716]  ? warn_alloc+0x120/0x120
[  362.092520]  ? zap_class+0x640/0x640
[  362.096251]  ? print_usage_bug+0xc0/0xc0
[  362.100338]  ? print_usage_bug+0xc0/0xc0
[  362.104439]  ? __lock_acquire+0x62f/0x4c20
[  362.108687]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  362.114225]  ? should_fail+0x22d/0xd01
[  362.118128]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  362.123233]  ? __lock_acquire+0x62f/0x4c20
[  362.127490]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  362.132593]  ? __lock_acquire+0x62f/0x4c20
[  362.136831]  ? should_fail+0x22d/0xd01
[  362.140733]  ? mark_held_locks+0x130/0x130
[  362.144973]  ? mark_held_locks+0x130/0x130
[  362.149219]  ? ip6_finish_output2+0x1d6b/0x27a0
[  362.153888]  ? __kfree_skb+0x20/0x20
[  362.157601]  ? lockdep_hardirqs_on+0x296/0x5b0
[  362.162191]  ? zap_class+0x640/0x640
[  362.165907]  ? print_usage_bug+0xc0/0xc0
[  362.169981]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.175536]  ? check_preemption_disabled+0x48/0x280
[  362.180567]  ? __lock_is_held+0xb5/0x140
[  362.184635]  __alloc_pages_nodemask+0xad8/0xea0
[  362.189357]  ? zap_class+0x640/0x640
[  362.193089]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  362.198117]  ? find_held_lock+0x36/0x1c0
[  362.202188]  ? ____cache_alloc_node+0x1c7/0x1e0
[  362.206878]  ? lock_downgrade+0x900/0x900
[  362.211052]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.216615]  cache_grow_begin+0xa5/0x8c0
[  362.220723]  ? do_raw_spin_unlock+0xa7/0x330
[  362.225156]  fallback_alloc+0x204/0x2e0
[  362.229149]  ____cache_alloc_node+0x1c7/0x1e0
[  362.233655]  kmem_cache_alloc_node+0xe3/0x730
[  362.238156]  ? ipv6_get_ifaddr+0x42e/0x620
[  362.242408]  __alloc_skb+0x119/0x770
[  362.246124]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  362.251416]  ? netdev_alloc_frag+0x1f0/0x1f0
[  362.255826]  ? lock_downgrade+0x900/0x900
[  362.259997]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.265540]  ? refcount_sub_and_test_checked+0x203/0x310
[  362.271006]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  362.276477]  ? addrconf_rs_timer+0x690/0x690
[  362.280900]  ndisc_alloc_skb+0x144/0x340
[  362.284976]  ndisc_send_rs+0x331/0x6e0
[  362.288879]  addrconf_rs_timer+0x314/0x690
[  362.293127]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  362.297415]  call_timer_fn+0x272/0x920
[  362.301315]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  362.305553]  ? process_timeout+0x40/0x40
[  362.309631]  ? mark_held_locks+0xc7/0x130
[  362.313934]  ? _raw_spin_unlock_irq+0x27/0x80
[  362.318432]  ? _raw_spin_unlock_irq+0x27/0x80
[  362.322928]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  362.327165]  ? lockdep_hardirqs_on+0x296/0x5b0
[  362.331784]  ? trace_hardirqs_on+0xbd/0x310
[  362.336108]  ? kasan_check_read+0x11/0x20
[  362.340255]  ? __run_timers+0x7da/0xc70
[  362.344239]  ? trace_hardirqs_off_caller+0x310/0x310
[  362.349359]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  362.353614]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  362.357852]  __run_timers+0x7e5/0xc70
[  362.361667]  ? timer_fixup_init+0x70/0x70
[  362.365825]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  362.370864]  ? zap_class+0x640/0x640
[  362.374590]  ? print_usage_bug+0xc0/0xc0
[  362.378663]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  362.383869]  ? find_held_lock+0x36/0x1c0
[  362.387939]  ? zap_class+0x640/0x640
[  362.391663]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.397216]  ? check_preemption_disabled+0x48/0x280
[  362.402261]  ? __lock_is_held+0xb5/0x140
[  362.406330]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.411878]  ? check_preemption_disabled+0x48/0x280
[  362.416905]  run_timer_softirq+0x52/0xb0
[  362.420971]  ? rcu_read_lock_sched_held+0x14f/0x180
[  362.426021]  __do_softirq+0x308/0xb7e
[  362.429839]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  362.434369]  ? lock_downgrade+0x900/0x900
[  362.438543]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  362.443678]  ? pvclock_read_flags+0x160/0x160
[  362.448199]  ? lapic_next_event+0x5a/0x90
[  362.452379]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.457955]  ? kvm_clock_read+0x18/0x30
[  362.461956]  ? kvm_sched_clock_read+0x9/0x20
[  362.466403]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  362.471971]  ? check_preemption_disabled+0x48/0x280
[  362.477038]  irq_exit+0x17f/0x1c0
[  362.480515]  smp_apic_timer_interrupt+0x1cb/0x760
[  362.485407]  ? smp_reschedule_interrupt+0x109/0x650
[  362.490445]  ? smp_call_function_single_interrupt+0x650/0x650
[  362.496349]  ? interrupt_entry+0xb5/0xc0
[  362.500432]  ? trace_hardirqs_off_caller+0xbb/0x310
[  362.505456]  ? trace_hardirqs_off_caller+0xbb/0x310
[  362.510482]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  362.515342]  ? trace_hardirqs_on_caller+0x310/0x310
[  362.520378]  ? trace_hardirqs_on_caller+0x310/0x310
[  362.525431]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  362.530290]  apic_timer_interrupt+0xf/0x20
[  362.534522]  </IRQ>
[  362.536770] RIP: 0010:dump_stack+0x358/0x39d
[  362.541201] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  362.560129] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  362.567852] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  362.575133] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  362.582413] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  362.589693] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  362.596970] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  362.604278]  ? dump_stack+0x34f/0x39d
[  362.608108]  ? dump_stack_print_info.cold.1+0x20/0x20
[  362.613312]  ? mark_held_locks+0x130/0x130
[  362.617558]  ? mark_held_locks+0x130/0x130
[  362.621814]  dump_header+0x27b/0xf72
[  362.625550]  ? pagefault_out_of_memory+0x197/0x197
[  362.630497]  ? __lock_acquire+0x62f/0x4c20
[  362.634736]  ? percpu_ref_get_many+0x240/0x240
[  362.639327]  ? print_usage_bug+0xc0/0xc0
[  362.643409]  ? zap_class+0x640/0x640
[  362.647131]  ? print_usage_bug+0xc0/0xc0
[  362.651208]  ? print_usage_bug+0xc0/0xc0
[  362.655291]  ? zap_class+0x640/0x640
[  362.659025]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.664576]  ? find_held_lock+0x36/0x1c0
[  362.668667]  ? mark_held_locks+0xc7/0x130
[  362.672825]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  362.677933]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  362.683046]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  362.687671]  ? trace_hardirqs_on+0xbd/0x310
[  362.692001]  ? kasan_check_read+0x11/0x20
[  362.696172]  ? ___ratelimit+0x3b4/0x672
[  362.700153]  ? trace_hardirqs_off_caller+0x310/0x310
[  362.705265]  ? trace_hardirqs_on+0x310/0x310
[  362.709683]  ? lock_downgrade+0x900/0x900
[  362.713843]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  362.718955]  ? ___ratelimit+0x3b9/0x672
[  362.722946]  ? idr_get_free+0xf70/0xf70
[  362.726931]  ? find_held_lock+0x36/0x1c0
[  362.731019]  oom_kill_process.cold.27+0x10/0x903
[  362.735792]  ? zap_class+0x640/0x640
[  362.739535]  ? check_preemption_disabled+0x48/0x280
[  362.744589]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  362.749543]  ? kasan_check_read+0x11/0x20
[  362.753706]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  362.759008]  ? oom_evaluate_task+0x540/0x540
[  362.763437]  ? find_held_lock+0x36/0x1c0
[  362.767521]  ? out_of_memory+0x974/0x1430
[  362.771680]  ? lock_downgrade+0x900/0x900
[  362.775840]  ? check_preemption_disabled+0x48/0x280
[  362.780871]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  362.785812]  ? kasan_check_read+0x11/0x20
[  362.789969]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  362.795272]  ? rcu_softirq_qs+0x20/0x20
[  362.799262]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  362.804808]  ? oom_evaluate_task+0x302/0x540
[  362.809255]  out_of_memory+0xa84/0x1430
[  362.813251]  ? oom_killer_disable+0x3a0/0x3a0
[  362.817760]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  362.822707]  ? __ww_mutex_check_waiters+0x160/0x160
[  362.827753]  __alloc_pages_slowpath+0x232c/0x2de0
[  362.832642]  ? warn_alloc+0x120/0x120
[  362.836454]  ? mark_held_locks+0x130/0x130
[  362.840715]  ? find_get_entry+0xaae/0x1120
[  362.844981]  ? filemap_map_pages+0x1a20/0x1a20
[  362.849590]  ? zap_class+0x640/0x640
[  362.853319]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.858869]  ? check_preemption_disabled+0x48/0x280
[  362.863899]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  362.869461]  ? should_fail+0x22d/0xd01
[  362.873371]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  362.878490]  ? zap_class+0x640/0x640
[  362.882244]  ? __lock_is_held+0xb5/0x140
[  362.886316]  ? mark_held_locks+0x130/0x130
[  362.890564]  ? lock_release+0xa00/0xa00
[  362.894549]  ? perf_trace_sched_process_exec+0x860/0x860
[  362.900017]  ? xa_load+0x2ba/0x460
[  362.903575]  ? lock_downgrade+0x900/0x900
[  362.907749]  ? __might_sleep+0x95/0x190
[  362.911752]  __alloc_pages_nodemask+0xad8/0xea0
[  362.916456]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  362.921511]  ? __page_cache_alloc+0x191/0x5c0
[  362.926029]  ? xa_load+0x2e1/0x460
[  362.929589]  ? xa_clear_mark+0x40/0x40
[  362.933499]  ? zap_class+0x640/0x640
[  362.937240]  ? zap_class+0x640/0x640
[  362.940970]  ? zap_class+0x640/0x640
[  362.944707]  ? __do_page_cache_readahead+0x663/0x810
[  362.949836]  ? find_held_lock+0x36/0x1c0
[  362.953916]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  362.959475]  alloc_pages_current+0x173/0x350
[  362.963904]  __page_cache_alloc+0x38c/0x5c0
[  362.968230]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  362.973165]  ? kasan_check_read+0x11/0x20
[  362.977372]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  362.982681]  ? generic_perform_write+0x6a0/0x6a0
[  362.987450]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  362.993003]  ? check_preemption_disabled+0x48/0x280
[  362.998037]  filemap_fault+0x1595/0x25f0
[  363.002113]  ? __lock_page_or_retry+0xa00/0xa00
[  363.006787]  ? mark_held_locks+0x130/0x130
[  363.011043]  ? filemap_map_pages+0xd6b/0x1a20
[  363.015542]  ? lock_downgrade+0x900/0x900
[  363.019694]  ? check_preemption_disabled+0x48/0x280
[  363.024719]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  363.029653]  ? kasan_check_read+0x11/0x20
[  363.033800]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  363.039081]  ? rcu_softirq_qs+0x20/0x20
[  363.043071]  ? filemap_map_pages+0xd92/0x1a20
[  363.047584]  ? find_get_entries_tag+0x1400/0x1400
[  363.052432]  ? debug_object_destroy+0x2b0/0x2b0
[  363.057110]  ? lock_pi_update_atomic+0x150/0x150
[  363.061889]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.067444]  ? lock_acquire+0x1ed/0x520
[  363.071418]  ? ext4_filemap_fault+0x7a/0xad
[  363.075749]  ? lock_release+0xa00/0xa00
[  363.079726]  ? perf_trace_sched_process_exec+0x860/0x860
[  363.085185]  ? print_usage_bug+0xc0/0xc0
[  363.089253]  ? print_usage_bug+0xc0/0xc0
[  363.093330]  ? down_read+0x8d/0x120
[  363.096963]  ? ext4_filemap_fault+0x7a/0xad
[  363.101293]  ? __down_interruptible+0x700/0x700
[  363.105975]  ext4_filemap_fault+0x82/0xad
[  363.110140]  __do_fault+0x100/0x6b0
[  363.113787]  ? find_held_lock+0x36/0x1c0
[  363.117854]  ? pmd_devmap_trans_unstable+0x220/0x220
[  363.122963]  ? mark_held_locks+0x130/0x130
[  363.127210]  ? mark_held_locks+0x130/0x130
[  363.131461]  ? debug_smp_processor_id+0x1c/0x20
[  363.136132]  ? perf_trace_lock+0x14d/0x7a0
[  363.140380]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  363.145930]  __handle_mm_fault+0x3ea0/0x5be0
[  363.150360]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  363.155210]  ? lock_is_held_type+0x210/0x210
[  363.159639]  ? __switch_to_asm+0x34/0x70
[  363.163698]  ? __switch_to_asm+0x34/0x70
[  363.167784]  ? zap_class+0x640/0x640
[  363.171499]  ? zap_class+0x640/0x640
[  363.175215]  ? __x64_sys_futex+0x53e/0x6a0
[  363.179736]  ? find_held_lock+0x36/0x1c0
[  363.183811]  ? handle_mm_fault+0x42a/0xc70
[  363.188050]  ? lock_downgrade+0x900/0x900
[  363.192202]  ? check_preemption_disabled+0x48/0x280
[  363.197226]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  363.202158]  ? kasan_check_read+0x11/0x20
[  363.206310]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  363.211591]  ? rcu_softirq_qs+0x20/0x20
[  363.215584]  ? trace_hardirqs_off_caller+0x310/0x310
[  363.220695]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  363.226237]  ? check_preemption_disabled+0x48/0x280
[  363.231272]  handle_mm_fault+0x54f/0xc70
[  363.235343]  ? __handle_mm_fault+0x5be0/0x5be0
[  363.239940]  ? find_vma+0x34/0x190
[  363.243487]  __do_page_fault+0x5e8/0xe60
[  363.247556]  ? trace_hardirqs_off+0xb8/0x310
[  363.251980]  do_page_fault+0xf2/0x7e0
[  363.255799]  ? vmalloc_sync_all+0x30/0x30
[  363.259952]  ? error_entry+0x70/0xd0
[  363.263669]  ? trace_hardirqs_off_caller+0xbb/0x310
[  363.268691]  ? trace_hardirqs_on_caller+0xc0/0x310
[  363.273622]  ? syscall_return_slowpath+0x5e0/0x5e0
[  363.278554]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  363.283400]  ? trace_hardirqs_on_caller+0x310/0x310
[  363.288419]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  363.293885]  ? prepare_exit_to_usermode+0x291/0x3b0
[  363.298909]  ? page_fault+0x8/0x30
[  363.302455]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  363.307304]  ? page_fault+0x8/0x30
[  363.310849]  page_fault+0x1e/0x30
[  363.314307] RIP: 0033:0x45ddf3
[  363.317511] Code: Bad RIP value.
[  363.320887] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  363.326252] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  363.333523] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  363.340794] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  363.348068] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  363.355349] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  363.362658] warn_alloc_show_mem: 1 callbacks suppressed
[  363.362671] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  363.362672] Mem-Info:
[  363.362704] active_anon:45985 inactive_anon:296 isolated_anon:0
[  363.362704]  active_file:15 inactive_file:8 isolated_file:0
[  363.362704]  unevictable:0 dirty:0 writeback:0 unstable:0
[  363.362704]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  363.362704]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  363.362704]  free:13771 free_pcp:249 free_cma:0
[  363.368047] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  363.368057] Call Trace:
[  363.375441] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  363.377848]  <IRQ>
[  363.410647] 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
[  363.420032]  dump_stack+0x244/0x39d
[  363.422590] lowmem_reserve[]: 0 2818 6321 6321
[  363.450278]  ? dump_stack_print_info.cold.1+0x20/0x20
[  363.452408] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  363.478551]  warn_alloc.cold.116+0xb7/0x1bd
[  363.482157] lowmem_reserve[]: 0 0 3503 3503
[  363.486738]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  363.491904] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  363.519476]  ? lock_downgrade+0x900/0x900
[  363.523772] lowmem_reserve[]: 0 0 0 0
[  363.528102]  ? trace_hardirqs_off+0xb8/0x310
[  363.532915] 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
[  363.561905]  ? trace_hardirqs_off+0xb8/0x310
[  363.566044] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  363.569851]  __alloc_pages_slowpath+0x2651/0x2de0
[  363.574227] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  363.587781]  ? warn_alloc+0x120/0x120
[  363.592155] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  363.607254]  ? print_usage_bug+0xc0/0xc0
[  363.612086] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  363.627541]  ? warn_alloc+0x120/0x120
[  363.631323] 376 total pagecache pages
[  363.640176]  ? warn_alloc+0x120/0x120
[  363.644229] 0 pages in swap cache
[  363.652804]  ? print_usage_bug+0xc0/0xc0
[  363.656579] Swap cache stats: add 0, delete 0, find 0/0
[  363.656589] Free swap  = 0kB
[  363.660394]  ? print_usage_bug+0xc0/0xc0
[  363.664168] Total swap = 0kB
[  363.667623]  ? __lock_acquire+0x62f/0x4c20
[  363.671655] 1965979 pages RAM
[  363.677039]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  363.680038] 0 pages HighMem/MovableOnly
[  363.684111]  ? should_fail+0x22d/0xd01
[  363.687100] 342854 pages reserved
[  363.691353]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  363.694435] 0 pages cma reserved
[  363.699973]  ? __lock_acquire+0x62f/0x4c20
[  363.704017] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  363.707834]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  363.711376] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  363.716382]  ? __lock_acquire+0x62f/0x4c20
[  363.719728] syz-fuzzer cpuset=/ mems_allowed=0
[  363.723959]  ? should_fail+0x22d/0xd01
[  363.758421]  ? find_held_lock+0x36/0x1c0
[  363.762509]  ? mark_held_locks+0x130/0x130
[  363.766763]  ? mark_held_locks+0x130/0x130
[  363.771034]  ? zap_class+0x640/0x640
[  363.774763]  ? zap_class+0x640/0x640
[  363.778492]  ? print_usage_bug+0xc0/0xc0
[  363.782564]  ? do_raw_spin_unlock+0xa7/0x330
[  363.786987]  ? zap_class+0x640/0x640
[  363.790728]  ? print_usage_bug+0xc0/0xc0
[  363.794821]  ? wq_watchdog_touch+0x9c/0xfe
[  363.799085]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.804646]  ? check_preemption_disabled+0x48/0x280
[  363.809689]  ? __lock_is_held+0xb5/0x140
[  363.813767]  __alloc_pages_nodemask+0xad8/0xea0
[  363.818453]  ? zap_class+0x640/0x640
[  363.822186]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  363.827235]  ? find_held_lock+0x36/0x1c0
[  363.831324]  ? ____cache_alloc_node+0x1c7/0x1e0
[  363.836020]  ? lock_downgrade+0x900/0x900
[  363.840206]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.845771]  cache_grow_begin+0xa5/0x8c0
[  363.849850]  ? do_raw_spin_unlock+0xa7/0x330
[  363.854301]  fallback_alloc+0x204/0x2e0
[  363.858298]  ____cache_alloc_node+0x1c7/0x1e0
[  363.862821]  kmem_cache_alloc_node+0xe3/0x730
[  363.867347]  ? ipv6_get_ifaddr+0x42e/0x620
[  363.871622]  __alloc_skb+0x119/0x770
[  363.875344]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  363.880645]  ? netdev_alloc_frag+0x1f0/0x1f0
[  363.885062]  ? lock_downgrade+0x900/0x900
[  363.889230]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.894800]  ? refcount_sub_and_test_checked+0x203/0x310
[  363.900279]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  363.905738]  ? addrconf_rs_timer+0x690/0x690
[  363.910184]  ndisc_alloc_skb+0x144/0x340
[  363.914262]  ndisc_send_rs+0x331/0x6e0
[  363.918162]  addrconf_rs_timer+0x314/0x690
[  363.922411]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  363.926746]  call_timer_fn+0x272/0x920
[  363.930647]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  363.934891]  ? process_timeout+0x40/0x40
[  363.938962]  ? __run_timers+0x7da/0xc70
[  363.942950]  ? _raw_spin_unlock_irq+0x27/0x80
[  363.947448]  ? _raw_spin_unlock_irq+0x27/0x80
[  363.951965]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  363.956215]  ? lockdep_hardirqs_on+0x296/0x5b0
[  363.960816]  ? trace_hardirqs_on+0xbd/0x310
[  363.965143]  ? kasan_check_read+0x11/0x20
[  363.969296]  ? __run_timers+0x7da/0xc70
[  363.973280]  ? trace_hardirqs_off_caller+0x310/0x310
[  363.978406]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  363.982649]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  363.986902]  __run_timers+0x7e5/0xc70
[  363.990715]  ? timer_fixup_init+0x70/0x70
[  363.994888]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  363.999912]  ? zap_class+0x640/0x640
[  364.003631]  ? enqueue_hrtimer+0x1a5/0x560
[  364.007911]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  364.013109]  ? find_held_lock+0x36/0x1c0
[  364.017202]  ? zap_class+0x640/0x640
[  364.020921]  ? pvclock_read_flags+0x160/0x160
[  364.025427]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.030989]  ? check_preemption_disabled+0x48/0x280
[  364.036065]  ? __lock_is_held+0xb5/0x140
[  364.040133]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.045679]  ? check_preemption_disabled+0x48/0x280
[  364.050706]  run_timer_softirq+0x52/0xb0
[  364.054780]  ? rcu_read_lock_sched_held+0x14f/0x180
[  364.059813]  __do_softirq+0x308/0xb7e
[  364.063624]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  364.068169]  ? lock_downgrade+0x900/0x900
[  364.072330]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  364.077449]  ? pvclock_read_flags+0x160/0x160
[  364.081957]  ? lapic_next_event+0x5a/0x90
[  364.086125]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.091676]  ? kvm_clock_read+0x18/0x30
[  364.095660]  ? kvm_sched_clock_read+0x9/0x20
[  364.100078]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.105628]  ? check_preemption_disabled+0x48/0x280
[  364.110659]  irq_exit+0x17f/0x1c0
[  364.114124]  smp_apic_timer_interrupt+0x1cb/0x760
[  364.118976]  ? smp_reschedule_interrupt+0x109/0x650
[  364.124031]  ? smp_call_function_single_interrupt+0x650/0x650
[  364.129923]  ? interrupt_entry+0xb5/0xc0
[  364.134004]  ? trace_hardirqs_off_caller+0xbb/0x310
[  364.139034]  ? trace_hardirqs_off_caller+0xbb/0x310
[  364.144056]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  364.148906]  ? trace_hardirqs_on_caller+0x310/0x310
[  364.153931]  ? trace_hardirqs_on_caller+0x310/0x310
[  364.158956]  ? task_prio+0x50/0x50
[  364.162513]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.168057]  ? check_preemption_disabled+0x48/0x280
[  364.173087]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  364.177948]  apic_timer_interrupt+0xf/0x20
[  364.182179]  </IRQ>
[  364.184422] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  364.189360] 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 42 f3
[  364.208276] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  364.216021] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  364.223312] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  364.230628] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  364.237914] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  364.245197] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  364.252523]  skb_clone+0x1bb/0x500
[  364.256078]  ? skb_split+0x11e0/0x11e0
[  364.259980]  ? check_preemption_disabled+0x48/0x280
[  364.265036]  ? __this_cpu_preempt_check+0x1c/0x20
[  364.269895]  ? __bpf_redirect+0x55b/0xb60
[  364.274054]  ? __switch_to_asm+0x34/0x70
[  364.278129]  ? __switch_to_asm+0x40/0x70
[  364.282241]  bpf_clone_redirect+0xb9/0x490
[  364.286501]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  364.291543]  ? __sched_text_start+0x8/0x8
[  364.295726]  ? find_held_lock+0x36/0x1c0
[  364.299805]  ? lock_acquire+0x1ed/0x520
[  364.303787]  ? bpf_test_run+0x3cb/0x780
[  364.307770]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.313806]  ? check_preemption_disabled+0x48/0x280
[  364.318840]  ? kasan_check_read+0x11/0x20
[  364.323007]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  364.328294]  ? rcu_softirq_qs+0x20/0x20
[  364.332282]  ? preempt_schedule+0x4d/0x60
[  364.336438]  ? ___preempt_schedule+0x16/0x18
[  364.340871]  ? bpf_test_run+0x25d/0x780
[  364.344869]  ? netlink_diag_dump+0x2a0/0x2a0
[  364.349319]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  364.354871]  ? bpf_test_init.isra.10+0x70/0x100
[  364.359554]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  364.364351]  ? bpf_test_finish.isra.9+0x260/0x260
[  364.369208]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  364.374763]  ? fput+0x130/0x1a0
[  364.378059]  ? __bpf_prog_get+0x9b/0x290
[  364.382132]  ? bpf_test_finish.isra.9+0x260/0x260
[  364.386987]  ? bpf_prog_test_run+0x130/0x1a0
[  364.391428]  ? __x64_sys_bpf+0x3db/0x520
[  364.395495]  ? bpf_prog_get+0x20/0x20
[  364.399327]  ? do_syscall_64+0x1b9/0x820
[  364.403402]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  364.408792]  ? syscall_return_slowpath+0x5e0/0x5e0
[  364.413735]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  364.418592]  ? trace_hardirqs_on_caller+0x310/0x310
[  364.423627]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  364.428658]  ? prepare_exit_to_usermode+0x291/0x3b0
[  364.433692]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  364.438552]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  364.443946] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  364.444022] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  364.450969] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  364.450975] Call Trace:
[  364.450981]  <IRQ>
[  364.451012]  dump_stack+0x244/0x39d
[  364.451029]  ? dump_stack_print_info.cold.1+0x20/0x20
[  364.451068]  warn_alloc.cold.116+0xb7/0x1bd
[  364.457607] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  364.466910]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  364.469471] syz-executor0 cpuset=syz0 mems_allowed=0
[  364.471623]  ? lock_downgrade+0x900/0x900
[  364.509287]  ? trace_hardirqs_off+0xb8/0x310
[  364.513719]  ? trace_hardirqs_off+0xb8/0x310
[  364.518151]  __alloc_pages_slowpath+0x2651/0x2de0
[  364.523043]  ? warn_alloc+0x120/0x120
[  364.526860]  ? print_usage_bug+0xc0/0xc0
[  364.530927]  ? warn_alloc+0x120/0x120
[  364.534740]  ? warn_alloc+0x120/0x120
[  364.538560]  ? print_usage_bug+0xc0/0xc0
[  364.542626]  ? kvm_clock_read+0x18/0x30
[  364.546603]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  364.551639]  ? print_usage_bug+0xc0/0xc0
[  364.555707]  ? __lock_acquire+0x62f/0x4c20
[  364.559949]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  364.565493]  ? should_fail+0x22d/0xd01
[  364.569391]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  364.574676]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  364.579789]  ? __lock_acquire+0x62f/0x4c20
[  364.584035]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  364.589137]  ? __lock_acquire+0x62f/0x4c20
[  364.593373]  ? should_fail+0x22d/0xd01
[  364.597272]  ? rcu_irq_exit+0x1a2/0x390
[  364.601275]  ? mark_held_locks+0x130/0x130
[  364.605517]  ? mark_held_locks+0x130/0x130
[  364.609764]  ? mark_held_locks+0xc7/0x130
[  364.613929]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  364.618949]  ? zap_class+0x640/0x640
[  364.622666]  ? print_usage_bug+0xc0/0xc0
[  364.626755]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.632293]  ? check_preemption_disabled+0x48/0x280
[  364.637325]  ? __lock_is_held+0xb5/0x140
[  364.641417]  __alloc_pages_nodemask+0xad8/0xea0
[  364.646092]  ? zap_class+0x640/0x640
[  364.649822]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  364.654856]  ? find_held_lock+0x36/0x1c0
[  364.658935]  ? ____cache_alloc_node+0x1c7/0x1e0
[  364.663612]  ? lock_downgrade+0x900/0x900
[  364.667773]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.673320]  cache_grow_begin+0xa5/0x8c0
[  364.677391]  ? do_raw_spin_unlock+0xa7/0x330
[  364.681812]  fallback_alloc+0x204/0x2e0
[  364.685800]  ____cache_alloc_node+0x1c7/0x1e0
[  364.690312]  kmem_cache_alloc_node+0xe3/0x730
[  364.694811]  ? ipv6_get_ifaddr+0x42e/0x620
[  364.699057]  __alloc_skb+0x119/0x770
[  364.702770]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  364.708056]  ? netdev_alloc_frag+0x1f0/0x1f0
[  364.712469]  ? lock_downgrade+0x900/0x900
[  364.716631]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.722172]  ? refcount_sub_and_test_checked+0x203/0x310
[  364.727651]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  364.733126]  ? addrconf_rs_timer+0x690/0x690
[  364.737584]  ndisc_alloc_skb+0x144/0x340
[  364.741654]  ndisc_send_rs+0x331/0x6e0
[  364.745551]  addrconf_rs_timer+0x314/0x690
[  364.749796]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  364.754091]  call_timer_fn+0x272/0x920
[  364.757984]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  364.762234]  ? process_timeout+0x40/0x40
[  364.766328]  ? mark_held_locks+0xc7/0x130
[  364.770488]  ? _raw_spin_unlock_irq+0x27/0x80
[  364.774986]  ? _raw_spin_unlock_irq+0x27/0x80
[  364.779491]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  364.783736]  ? lockdep_hardirqs_on+0x296/0x5b0
[  364.788342]  ? trace_hardirqs_on+0xbd/0x310
[  364.792679]  ? kasan_check_read+0x11/0x20
[  364.796837]  ? __run_timers+0x7da/0xc70
[  364.800828]  ? trace_hardirqs_off_caller+0x310/0x310
[  364.805946]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  364.810191]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  364.814431]  __run_timers+0x7e5/0xc70
[  364.818245]  ? timer_fixup_init+0x70/0x70
[  364.822400]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  364.827432]  ? zap_class+0x640/0x640
[  364.831157]  ? print_usage_bug+0xc0/0xc0
[  364.835238]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  364.840446]  ? find_held_lock+0x36/0x1c0
[  364.844516]  ? zap_class+0x640/0x640
[  364.848241]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.853788]  ? check_preemption_disabled+0x48/0x280
[  364.858823]  ? __lock_is_held+0xb5/0x140
[  364.862900]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.868457]  ? check_preemption_disabled+0x48/0x280
[  364.873483]  run_timer_softirq+0x52/0xb0
[  364.877571]  ? rcu_read_lock_sched_held+0x14f/0x180
[  364.882613]  __do_softirq+0x308/0xb7e
[  364.886426]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  364.890934]  ? lock_downgrade+0x900/0x900
[  364.895095]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  364.900213]  ? pvclock_read_flags+0x160/0x160
[  364.904740]  ? lapic_next_event+0x5a/0x90
[  364.908910]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.914457]  ? kvm_clock_read+0x18/0x30
[  364.918434]  ? kvm_sched_clock_read+0x9/0x20
[  364.922848]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  364.928397]  ? check_preemption_disabled+0x48/0x280
[  364.933425]  irq_exit+0x17f/0x1c0
[  364.936890]  smp_apic_timer_interrupt+0x1cb/0x760
[  364.941737]  ? smp_reschedule_interrupt+0x109/0x650
[  364.946761]  ? smp_call_function_single_interrupt+0x650/0x650
[  364.952653]  ? interrupt_entry+0xb5/0xc0
[  364.956719]  ? trace_hardirqs_off_caller+0xbb/0x310
[  364.961735]  ? trace_hardirqs_off_caller+0xbb/0x310
[  364.966778]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  364.971651]  ? trace_hardirqs_on_caller+0x310/0x310
[  364.976666]  ? trace_hardirqs_on_caller+0x310/0x310
[  364.981696]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  364.986550]  apic_timer_interrupt+0xf/0x20
[  364.990794]  </IRQ>
[  364.993036] RIP: 0010:dump_stack+0x358/0x39d
[  364.997451] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  365.016368] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  365.024086] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  365.031363] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  365.038634] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  365.045907] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  365.053177] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  365.060479]  ? dump_stack+0x34f/0x39d
[  365.064330]  ? dump_stack_print_info.cold.1+0x20/0x20
[  365.069531]  ? mark_held_locks+0x130/0x130
[  365.073773]  ? mark_held_locks+0x130/0x130
[  365.078035]  dump_header+0x27b/0xf72
[  365.081795]  ? pagefault_out_of_memory+0x197/0x197
[  365.086735]  ? __lock_acquire+0x62f/0x4c20
[  365.090976]  ? percpu_ref_get_many+0x240/0x240
[  365.095605]  ? print_usage_bug+0xc0/0xc0
[  365.099678]  ? zap_class+0x640/0x640
[  365.103397]  ? print_usage_bug+0xc0/0xc0
[  365.107465]  ? print_usage_bug+0xc0/0xc0
[  365.111532]  ? zap_class+0x640/0x640
[  365.115265]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.120844]  ? find_held_lock+0x36/0x1c0
[  365.124940]  ? mark_held_locks+0xc7/0x130
[  365.129092]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  365.134197]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  365.139308]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  365.143896]  ? trace_hardirqs_on+0xbd/0x310
[  365.148219]  ? kasan_check_read+0x11/0x20
[  365.152375]  ? ___ratelimit+0x3b4/0x672
[  365.156361]  ? trace_hardirqs_off_caller+0x310/0x310
[  365.161469]  ? trace_hardirqs_on+0x310/0x310
[  365.165881]  ? lock_downgrade+0x900/0x900
[  365.170041]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  365.175150]  ? ___ratelimit+0x3b9/0x672
[  365.179601]  ? idr_get_free+0xf70/0xf70
[  365.183578]  ? find_held_lock+0x36/0x1c0
[  365.187658]  oom_kill_process.cold.27+0x10/0x903
[  365.192418]  ? zap_class+0x640/0x640
[  365.196139]  ? check_preemption_disabled+0x48/0x280
[  365.201164]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  365.206100]  ? kasan_check_read+0x11/0x20
[  365.210257]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  365.215539]  ? oom_evaluate_task+0x540/0x540
[  365.219985]  ? find_held_lock+0x36/0x1c0
[  365.224070]  ? out_of_memory+0x974/0x1430
[  365.228229]  ? lock_downgrade+0x900/0x900
[  365.232384]  ? check_preemption_disabled+0x48/0x280
[  365.237437]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  365.242374]  ? kasan_check_read+0x11/0x20
[  365.246570]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  365.251848]  ? rcu_softirq_qs+0x20/0x20
[  365.255842]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  365.261397]  ? oom_evaluate_task+0x302/0x540
[  365.265817]  out_of_memory+0xa84/0x1430
[  365.269803]  ? oom_killer_disable+0x3a0/0x3a0
[  365.274309]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  365.279259]  ? __ww_mutex_check_waiters+0x160/0x160
[  365.284306]  __alloc_pages_slowpath+0x232c/0x2de0
[  365.289195]  ? warn_alloc+0x120/0x120
[  365.293010]  ? mark_held_locks+0x130/0x130
[  365.297267]  ? find_get_entry+0xaae/0x1120
[  365.301517]  ? filemap_map_pages+0x1a20/0x1a20
[  365.306114]  ? zap_class+0x640/0x640
[  365.309838]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.315387]  ? check_preemption_disabled+0x48/0x280
[  365.320416]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  365.325961]  ? should_fail+0x22d/0xd01
[  365.329862]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  365.334975]  ? zap_class+0x640/0x640
[  365.338723]  ? __lock_is_held+0xb5/0x140
[  365.342831]  ? mark_held_locks+0x130/0x130
[  365.347070]  ? lock_release+0xa00/0xa00
[  365.351048]  ? perf_trace_sched_process_exec+0x860/0x860
[  365.356500]  ? xa_load+0x2ba/0x460
[  365.360074]  ? lock_downgrade+0x900/0x900
[  365.364232]  ? __might_sleep+0x95/0x190
[  365.368221]  __alloc_pages_nodemask+0xad8/0xea0
[  365.372903]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  365.377928]  ? __page_cache_alloc+0x191/0x5c0
[  365.382424]  ? xa_load+0x2e1/0x460
[  365.385965]  ? xa_clear_mark+0x40/0x40
[  365.389873]  ? zap_class+0x640/0x640
[  365.393601]  ? zap_class+0x640/0x640
[  365.397319]  ? zap_class+0x640/0x640
[  365.401036]  ? __do_page_cache_readahead+0x663/0x810
[  365.406152]  ? find_held_lock+0x36/0x1c0
[  365.410221]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  365.415772]  alloc_pages_current+0x173/0x350
[  365.420197]  __page_cache_alloc+0x38c/0x5c0
[  365.424528]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  365.429472]  ? kasan_check_read+0x11/0x20
[  365.433627]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  365.438931]  ? generic_perform_write+0x6a0/0x6a0
[  365.443701]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  365.449251]  ? check_preemption_disabled+0x48/0x280
[  365.454294]  filemap_fault+0x1595/0x25f0
[  365.458383]  ? __lock_page_or_retry+0xa00/0xa00
[  365.463063]  ? mark_held_locks+0x130/0x130
[  365.467317]  ? filemap_map_pages+0xd6b/0x1a20
[  365.471816]  ? lock_downgrade+0x900/0x900
[  365.475967]  ? check_preemption_disabled+0x48/0x280
[  365.481012]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  365.485952]  ? kasan_check_read+0x11/0x20
[  365.490104]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  365.495399]  ? rcu_softirq_qs+0x20/0x20
[  365.499400]  ? filemap_map_pages+0xd92/0x1a20
[  365.503912]  ? find_get_entries_tag+0x1400/0x1400
[  365.508767]  ? debug_object_destroy+0x2b0/0x2b0
[  365.513444]  ? lock_pi_update_atomic+0x150/0x150
[  365.518206]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.523759]  ? lock_acquire+0x1ed/0x520
[  365.527739]  ? ext4_filemap_fault+0x7a/0xad
[  365.532075]  ? lock_release+0xa00/0xa00
[  365.536052]  ? perf_trace_sched_process_exec+0x860/0x860
[  365.541510]  ? print_usage_bug+0xc0/0xc0
[  365.545590]  ? print_usage_bug+0xc0/0xc0
[  365.549664]  ? down_read+0x8d/0x120
[  365.553291]  ? ext4_filemap_fault+0x7a/0xad
[  365.557618]  ? __down_interruptible+0x700/0x700
[  365.562301]  ext4_filemap_fault+0x82/0xad
[  365.566473]  __do_fault+0x100/0x6b0
[  365.570123]  ? find_held_lock+0x36/0x1c0
[  365.574199]  ? pmd_devmap_trans_unstable+0x220/0x220
[  365.579309]  ? mark_held_locks+0x130/0x130
[  365.583564]  ? mark_held_locks+0x130/0x130
[  365.587804]  ? debug_smp_processor_id+0x1c/0x20
[  365.592478]  ? perf_trace_lock+0x14d/0x7a0
[  365.596753]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  365.602314]  __handle_mm_fault+0x3ea0/0x5be0
[  365.606752]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  365.611603]  ? lock_is_held_type+0x210/0x210
[  365.616028]  ? __switch_to_asm+0x34/0x70
[  365.620095]  ? __switch_to_asm+0x34/0x70
[  365.624188]  ? zap_class+0x640/0x640
[  365.627917]  ? zap_class+0x640/0x640
[  365.631646]  ? __x64_sys_futex+0x53e/0x6a0
[  365.635890]  ? find_held_lock+0x36/0x1c0
[  365.639966]  ? handle_mm_fault+0x42a/0xc70
[  365.644216]  ? lock_downgrade+0x900/0x900
[  365.648380]  ? check_preemption_disabled+0x48/0x280
[  365.653407]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  365.658345]  ? kasan_check_read+0x11/0x20
[  365.662502]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  365.667790]  ? rcu_softirq_qs+0x20/0x20
[  365.671779]  ? trace_hardirqs_off_caller+0x310/0x310
[  365.676903]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  365.682447]  ? check_preemption_disabled+0x48/0x280
[  365.687477]  handle_mm_fault+0x54f/0xc70
[  365.691547]  ? __handle_mm_fault+0x5be0/0x5be0
[  365.696169]  ? find_vma+0x34/0x190
[  365.699720]  __do_page_fault+0x5e8/0xe60
[  365.703783]  ? trace_hardirqs_off+0xb8/0x310
[  365.708207]  do_page_fault+0xf2/0x7e0
[  365.712022]  ? vmalloc_sync_all+0x30/0x30
[  365.716175]  ? error_entry+0x70/0xd0
[  365.719891]  ? trace_hardirqs_off_caller+0xbb/0x310
[  365.724908]  ? trace_hardirqs_on_caller+0xc0/0x310
[  365.729857]  ? syscall_return_slowpath+0x5e0/0x5e0
[  365.734790]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  365.739643]  ? trace_hardirqs_on_caller+0x310/0x310
[  365.744659]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  365.750120]  ? prepare_exit_to_usermode+0x291/0x3b0
[  365.755137]  ? page_fault+0x8/0x30
[  365.758694]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  365.763547]  ? page_fault+0x8/0x30
[  365.767093]  page_fault+0x1e/0x30
[  365.770546] RIP: 0033:0x45ddf3
[  365.773750] Code: Bad RIP value.
[  365.777126] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  365.782490] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  365.789765] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  365.797038] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  365.804315] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  365.811697] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  365.819017] warn_alloc_show_mem: 1 callbacks suppressed
[  365.819029] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  365.819031] Mem-Info:
[  365.819062] active_anon:45985 inactive_anon:296 isolated_anon:0
[  365.819062]  active_file:15 inactive_file:8 isolated_file:0
[  365.819062]  unevictable:0 dirty:0 writeback:0 unstable:0
[  365.819062]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  365.819062]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  365.819062]  free:13771 free_pcp:249 free_cma:0
[  365.824399] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  365.824409] Call Trace:
[  365.831841] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  365.834249]  <IRQ>
[  365.867042] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  365.876423]  dump_stack+0x244/0x39d
[  365.878981] lowmem_reserve[]: 0 2818 6321 6321
[  365.906681]  ? dump_stack_print_info.cold.1+0x20/0x20
[  365.908801] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  365.934939]  warn_alloc.cold.116+0xb7/0x1bd
[  365.938539] lowmem_reserve[]: 0 0 3503 3503
[  365.943128]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  365.948305] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  365.975816]  ? lock_downgrade+0x900/0x900
[  365.980112] lowmem_reserve[]: 0 0 0 0
[  365.984443]  ? trace_hardirqs_off+0xb8/0x310
[  365.989253] 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
[  366.018241]  ? trace_hardirqs_off+0xb8/0x310
[  366.022382] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  366.026184]  __alloc_pages_slowpath+0x2651/0x2de0
[  366.030575] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  366.044232]  ? warn_alloc+0x120/0x120
[  366.048607] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  366.063697]  ? print_usage_bug+0xc0/0xc0
[  366.068526] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  366.083960]  ? warn_alloc+0x120/0x120
[  366.087741] 376 total pagecache pages
[  366.096582]  ? warn_alloc+0x120/0x120
[  366.100628] 0 pages in swap cache
[  366.109199]  ? print_usage_bug+0xc0/0xc0
[  366.112974] Swap cache stats: add 0, delete 0, find 0/0
[  366.116795]  ? print_usage_bug+0xc0/0xc0
[  366.120569] Free swap  = 0kB
[  366.124024]  ? __lock_acquire+0x62f/0x4c20
[  366.128058] Total swap = 0kB
[  366.133426]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  366.137457] 1965979 pages RAM
[  366.140477]  ? should_fail+0x22d/0xd01
[  366.144682] 0 pages HighMem/MovableOnly
[  366.147709]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  366.153208] 342854 pages reserved
[  366.153217] 0 pages cma reserved
[  366.156323]  ? __lock_acquire+0x62f/0x4c20
[  366.160340] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  366.164242]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  366.169438] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  366.172776]  ? __lock_acquire+0x62f/0x4c20
[  366.176120] syz-fuzzer cpuset=/ mems_allowed=0
[  366.180353]  ? should_fail+0x22d/0xd01
[  366.214902]  ? find_held_lock+0x36/0x1c0
[  366.218984]  ? mark_held_locks+0x130/0x130
[  366.223261]  ? mark_held_locks+0x130/0x130
[  366.227501]  ? zap_class+0x640/0x640
[  366.231239]  ? zap_class+0x640/0x640
[  366.234964]  ? print_usage_bug+0xc0/0xc0
[  366.239039]  ? do_raw_spin_unlock+0xa7/0x330
[  366.243459]  ? zap_class+0x640/0x640
[  366.247182]  ? print_usage_bug+0xc0/0xc0
[  366.251251]  ? wq_watchdog_touch+0x9c/0xfe
[  366.255494]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.261047]  ? check_preemption_disabled+0x48/0x280
[  366.266089]  ? __lock_is_held+0xb5/0x140
[  366.270167]  __alloc_pages_nodemask+0xad8/0xea0
[  366.274843]  ? zap_class+0x640/0x640
[  366.278572]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  366.283612]  ? find_held_lock+0x36/0x1c0
[  366.287696]  ? ____cache_alloc_node+0x1c7/0x1e0
[  366.292377]  ? lock_downgrade+0x900/0x900
[  366.296543]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.302094]  cache_grow_begin+0xa5/0x8c0
[  366.306165]  ? do_raw_spin_unlock+0xa7/0x330
[  366.311115]  fallback_alloc+0x204/0x2e0
[  366.315108]  ____cache_alloc_node+0x1c7/0x1e0
[  366.319617]  kmem_cache_alloc_node+0xe3/0x730
[  366.324135]  ? ipv6_get_ifaddr+0x42e/0x620
[  366.328382]  __alloc_skb+0x119/0x770
[  366.332104]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  366.337395]  ? netdev_alloc_frag+0x1f0/0x1f0
[  366.341809]  ? lock_downgrade+0x900/0x900
[  366.345991]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.351568]  ? refcount_sub_and_test_checked+0x203/0x310
[  366.357039]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  366.362502]  ? addrconf_rs_timer+0x690/0x690
[  366.366936]  ndisc_alloc_skb+0x144/0x340
[  366.371021]  ndisc_send_rs+0x331/0x6e0
[  366.374929]  addrconf_rs_timer+0x314/0x690
[  366.379181]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  366.383439]  call_timer_fn+0x272/0x920
[  366.387338]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  366.391604]  ? process_timeout+0x40/0x40
[  366.395684]  ? __run_timers+0x7da/0xc70
[  366.399667]  ? _raw_spin_unlock_irq+0x27/0x80
[  366.404179]  ? _raw_spin_unlock_irq+0x27/0x80
[  366.408680]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  366.412922]  ? lockdep_hardirqs_on+0x296/0x5b0
[  366.417515]  ? trace_hardirqs_on+0xbd/0x310
[  366.421841]  ? kasan_check_read+0x11/0x20
[  366.426005]  ? __run_timers+0x7da/0xc70
[  366.430014]  ? trace_hardirqs_off_caller+0x310/0x310
[  366.435131]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  366.439380]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  366.443619]  __run_timers+0x7e5/0xc70
[  366.447437]  ? timer_fixup_init+0x70/0x70
[  366.451597]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  366.456620]  ? zap_class+0x640/0x640
[  366.460342]  ? enqueue_hrtimer+0x1a5/0x560
[  366.464595]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  366.469801]  ? find_held_lock+0x36/0x1c0
[  366.473881]  ? zap_class+0x640/0x640
[  366.477616]  ? pvclock_read_flags+0x160/0x160
[  366.482128]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.487680]  ? check_preemption_disabled+0x48/0x280
[  366.492719]  ? __lock_is_held+0xb5/0x140
[  366.496809]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.502374]  ? check_preemption_disabled+0x48/0x280
[  366.507410]  run_timer_softirq+0x52/0xb0
[  366.511481]  ? rcu_read_lock_sched_held+0x14f/0x180
[  366.516513]  __do_softirq+0x308/0xb7e
[  366.520333]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  366.524842]  ? lock_downgrade+0x900/0x900
[  366.529034]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  366.534162]  ? pvclock_read_flags+0x160/0x160
[  366.538669]  ? lapic_next_event+0x5a/0x90
[  366.542830]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.548389]  ? kvm_clock_read+0x18/0x30
[  366.552386]  ? kvm_sched_clock_read+0x9/0x20
[  366.556812]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.562373]  ? check_preemption_disabled+0x48/0x280
[  366.567413]  irq_exit+0x17f/0x1c0
[  366.570883]  smp_apic_timer_interrupt+0x1cb/0x760
[  366.575746]  ? smp_reschedule_interrupt+0x109/0x650
[  366.580783]  ? smp_call_function_single_interrupt+0x650/0x650
[  366.586684]  ? interrupt_entry+0xb5/0xc0
[  366.590762]  ? trace_hardirqs_off_caller+0xbb/0x310
[  366.595821]  ? trace_hardirqs_off_caller+0xbb/0x310
[  366.600894]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  366.605757]  ? trace_hardirqs_on_caller+0x310/0x310
[  366.610784]  ? trace_hardirqs_on_caller+0x310/0x310
[  366.615824]  ? task_prio+0x50/0x50
[  366.619382]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.624938]  ? check_preemption_disabled+0x48/0x280
[  366.629974]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  366.634846]  apic_timer_interrupt+0xf/0x20
[  366.639088]  </IRQ>
[  366.641354] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  366.646292] 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 42 f3
[  366.665210] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  366.672960] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  366.680249] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  366.687541] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  366.694836] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  366.702125] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  366.709468]  skb_clone+0x1bb/0x500
[  366.713034]  ? skb_split+0x11e0/0x11e0
[  366.716938]  ? check_preemption_disabled+0x48/0x280
[  366.721973]  ? __this_cpu_preempt_check+0x1c/0x20
[  366.726879]  ? __bpf_redirect+0x55b/0xb60
[  366.731040]  ? __switch_to_asm+0x34/0x70
[  366.735109]  ? __switch_to_asm+0x40/0x70
[  366.739188]  bpf_clone_redirect+0xb9/0x490
[  366.743443]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  366.748473]  ? __sched_text_start+0x8/0x8
[  366.752640]  ? find_held_lock+0x36/0x1c0
[  366.756744]  ? lock_acquire+0x1ed/0x520
[  366.760739]  ? bpf_test_run+0x3cb/0x780
[  366.764750]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.770300]  ? check_preemption_disabled+0x48/0x280
[  366.775375]  ? kasan_check_read+0x11/0x20
[  366.779531]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  366.784814]  ? rcu_softirq_qs+0x20/0x20
[  366.788796]  ? preempt_schedule+0x4d/0x60
[  366.792954]  ? ___preempt_schedule+0x16/0x18
[  366.797379]  ? bpf_test_run+0x25d/0x780
[  366.801374]  ? netlink_diag_dump+0x2a0/0x2a0
[  366.805795]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  366.811343]  ? bpf_test_init.isra.10+0x70/0x100
[  366.816035]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  366.820810]  ? bpf_test_finish.isra.9+0x260/0x260
[  366.825660]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  366.831204]  ? fput+0x130/0x1a0
[  366.834493]  ? __bpf_prog_get+0x9b/0x290
[  366.838564]  ? bpf_test_finish.isra.9+0x260/0x260
[  366.843414]  ? bpf_prog_test_run+0x130/0x1a0
[  366.847833]  ? __x64_sys_bpf+0x3db/0x520
[  366.851903]  ? bpf_prog_get+0x20/0x20
[  366.855732]  ? do_syscall_64+0x1b9/0x820
[  366.859815]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  366.865191]  ? syscall_return_slowpath+0x5e0/0x5e0
[  366.870132]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  366.874989]  ? trace_hardirqs_on_caller+0x310/0x310
[  366.880033]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  366.885061]  ? prepare_exit_to_usermode+0x291/0x3b0
[  366.890134]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  366.895000]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  366.900389] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  366.900457] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  366.907410] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  366.907420] Call Trace:
[  366.914055] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  366.923289]  <IRQ>
[  366.925866] syz-executor0 cpuset=syz0 mems_allowed=0
[  366.936369]  dump_stack+0x244/0x39d
[  366.947233]  ? dump_stack_print_info.cold.1+0x20/0x20
[  366.952443]  warn_alloc.cold.116+0xb7/0x1bd
[  366.956775]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  366.961625]  ? lock_downgrade+0x900/0x900
[  366.965782]  ? trace_hardirqs_off+0xb8/0x310
[  366.970202]  ? trace_hardirqs_off+0xb8/0x310
[  366.974638]  __alloc_pages_slowpath+0x2651/0x2de0
[  366.979511]  ? warn_alloc+0x120/0x120
[  366.983318]  ? print_usage_bug+0xc0/0xc0
[  366.987383]  ? warn_alloc+0x120/0x120
[  366.991191]  ? warn_alloc+0x120/0x120
[  366.995007]  ? print_usage_bug+0xc0/0xc0
[  366.999073]  ? kvm_clock_read+0x18/0x30
[  367.003060]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  367.008078]  ? print_usage_bug+0xc0/0xc0
[  367.012174]  ? __lock_acquire+0x62f/0x4c20
[  367.016435]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  367.021989]  ? should_fail+0x22d/0xd01
[  367.025885]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  367.031187]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  367.036296]  ? __lock_acquire+0x62f/0x4c20
[  367.040573]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  367.045695]  ? __lock_acquire+0x62f/0x4c20
[  367.049934]  ? should_fail+0x22d/0xd01
[  367.053821]  ? rcu_irq_exit+0x1a2/0x390
[  367.057807]  ? mark_held_locks+0x130/0x130
[  367.062060]  ? mark_held_locks+0x130/0x130
[  367.066304]  ? mark_held_locks+0xc7/0x130
[  367.070456]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  367.075477]  ? zap_class+0x640/0x640
[  367.079194]  ? print_usage_bug+0xc0/0xc0
[  367.083271]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.088815]  ? check_preemption_disabled+0x48/0x280
[  367.093849]  ? __lock_is_held+0xb5/0x140
[  367.097933]  __alloc_pages_nodemask+0xad8/0xea0
[  367.102618]  ? zap_class+0x640/0x640
[  367.106373]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  367.111419]  ? find_held_lock+0x36/0x1c0
[  367.115493]  ? ____cache_alloc_node+0x1c7/0x1e0
[  367.120171]  ? lock_downgrade+0x900/0x900
[  367.124328]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.129887]  cache_grow_begin+0xa5/0x8c0
[  367.133972]  ? do_raw_spin_unlock+0xa7/0x330
[  367.138483]  fallback_alloc+0x204/0x2e0
[  367.142477]  ____cache_alloc_node+0x1c7/0x1e0
[  367.146980]  kmem_cache_alloc_node+0xe3/0x730
[  367.151507]  ? ipv6_get_ifaddr+0x42e/0x620
[  367.155755]  __alloc_skb+0x119/0x770
[  367.159472]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  367.164760]  ? netdev_alloc_frag+0x1f0/0x1f0
[  367.169170]  ? lock_downgrade+0x900/0x900
[  367.173330]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.179384]  ? refcount_sub_and_test_checked+0x203/0x310
[  367.184863]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  367.190323]  ? addrconf_rs_timer+0x690/0x690
[  367.194750]  ndisc_alloc_skb+0x144/0x340
[  367.198818]  ndisc_send_rs+0x331/0x6e0
[  367.202717]  addrconf_rs_timer+0x314/0x690
[  367.206965]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  367.211221]  call_timer_fn+0x272/0x920
[  367.215113]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  367.219354]  ? process_timeout+0x40/0x40
[  367.223435]  ? mark_held_locks+0xc7/0x130
[  367.227587]  ? _raw_spin_unlock_irq+0x27/0x80
[  367.232085]  ? _raw_spin_unlock_irq+0x27/0x80
[  367.236585]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  367.240829]  ? lockdep_hardirqs_on+0x296/0x5b0
[  367.245421]  ? trace_hardirqs_on+0xbd/0x310
[  367.249839]  ? kasan_check_read+0x11/0x20
[  367.254005]  ? __run_timers+0x7da/0xc70
[  367.257986]  ? trace_hardirqs_off_caller+0x310/0x310
[  367.263108]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  367.267353]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  367.271593]  __run_timers+0x7e5/0xc70
[  367.275412]  ? timer_fixup_init+0x70/0x70
[  367.279567]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  367.284594]  ? zap_class+0x640/0x640
[  367.288316]  ? print_usage_bug+0xc0/0xc0
[  367.292393]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  367.297596]  ? find_held_lock+0x36/0x1c0
[  367.301681]  ? zap_class+0x640/0x640
[  367.305406]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.310949]  ? check_preemption_disabled+0x48/0x280
[  367.315992]  ? __lock_is_held+0xb5/0x140
[  367.320071]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.325618]  ? check_preemption_disabled+0x48/0x280
[  367.330646]  run_timer_softirq+0x52/0xb0
[  367.334710]  ? rcu_read_lock_sched_held+0x14f/0x180
[  367.339731]  __do_softirq+0x308/0xb7e
[  367.343543]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  367.348040]  ? lock_downgrade+0x900/0x900
[  367.352202]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  367.357318]  ? pvclock_read_flags+0x160/0x160
[  367.361833]  ? lapic_next_event+0x5a/0x90
[  367.366004]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.371558]  ? kvm_clock_read+0x18/0x30
[  367.375537]  ? kvm_sched_clock_read+0x9/0x20
[  367.379953]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  367.385504]  ? check_preemption_disabled+0x48/0x280
[  367.390552]  irq_exit+0x17f/0x1c0
[  367.394022]  smp_apic_timer_interrupt+0x1cb/0x760
[  367.398872]  ? smp_reschedule_interrupt+0x109/0x650
[  367.403899]  ? smp_call_function_single_interrupt+0x650/0x650
[  367.409787]  ? interrupt_entry+0xb5/0xc0
[  367.413856]  ? trace_hardirqs_off_caller+0xbb/0x310
[  367.418880]  ? trace_hardirqs_off_caller+0xbb/0x310
[  367.423918]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  367.428766]  ? trace_hardirqs_on_caller+0x310/0x310
[  367.433784]  ? trace_hardirqs_on_caller+0x310/0x310
[  367.438826]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  367.443682]  apic_timer_interrupt+0xf/0x20
[  367.447915]  </IRQ>
[  367.450156] RIP: 0010:dump_stack+0x358/0x39d
[  367.454574] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  367.473495] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  367.481219] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  367.488492] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  367.495764] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  367.503043] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  367.510315] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  367.517612]  ? dump_stack+0x34f/0x39d
[  367.521428]  ? dump_stack_print_info.cold.1+0x20/0x20
[  367.526639]  ? mark_held_locks+0x130/0x130
[  367.530874]  ? mark_held_locks+0x130/0x130
[  367.535115]  dump_header+0x27b/0xf72
[  367.538844]  ? pagefault_out_of_memory+0x197/0x197
[  367.543790]  ? __lock_acquire+0x62f/0x4c20
[  367.548038]  ? percpu_ref_get_many+0x240/0x240
[  367.552631]  ? print_usage_bug+0xc0/0xc0
[  367.556703]  ? zap_class+0x640/0x640
[  367.560423]  ? print_usage_bug+0xc0/0xc0
[  367.564489]  ? print_usage_bug+0xc0/0xc0
[  367.568556]  ? zap_class+0x640/0x640
[  367.572278]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.577825]  ? find_held_lock+0x36/0x1c0
[  367.581898]  ? mark_held_locks+0xc7/0x130
[  367.586054]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  367.591161]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  367.596273]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  367.600857]  ? trace_hardirqs_on+0xbd/0x310
[  367.605181]  ? kasan_check_read+0x11/0x20
[  367.609343]  ? ___ratelimit+0x3b4/0x672
[  367.613325]  ? trace_hardirqs_off_caller+0x310/0x310
[  367.618434]  ? trace_hardirqs_on+0x310/0x310
[  367.622846]  ? lock_downgrade+0x900/0x900
[  367.627015]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  367.632144]  ? ___ratelimit+0x3b9/0x672
[  367.636130]  ? idr_get_free+0xf70/0xf70
[  367.640127]  ? find_held_lock+0x36/0x1c0
[  367.644206]  oom_kill_process.cold.27+0x10/0x903
[  367.648965]  ? zap_class+0x640/0x640
[  367.652689]  ? check_preemption_disabled+0x48/0x280
[  367.657713]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  367.662651]  ? kasan_check_read+0x11/0x20
[  367.666800]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  367.672082]  ? oom_evaluate_task+0x540/0x540
[  367.676498]  ? find_held_lock+0x36/0x1c0
[  367.680570]  ? out_of_memory+0x974/0x1430
[  367.684728]  ? lock_downgrade+0x900/0x900
[  367.688882]  ? check_preemption_disabled+0x48/0x280
[  367.693907]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  367.698839]  ? kasan_check_read+0x11/0x20
[  367.702992]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  367.708283]  ? rcu_softirq_qs+0x20/0x20
[  367.712265]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  367.717820]  ? oom_evaluate_task+0x302/0x540
[  367.722240]  out_of_memory+0xa84/0x1430
[  367.726229]  ? oom_killer_disable+0x3a0/0x3a0
[  367.730762]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  367.735719]  ? __ww_mutex_check_waiters+0x160/0x160
[  367.740769]  __alloc_pages_slowpath+0x232c/0x2de0
[  367.745645]  ? warn_alloc+0x120/0x120
[  367.749449]  ? mark_held_locks+0x130/0x130
[  367.753697]  ? find_get_entry+0xaae/0x1120
[  367.757945]  ? filemap_map_pages+0x1a20/0x1a20
[  367.762535]  ? zap_class+0x640/0x640
[  367.766258]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.771805]  ? check_preemption_disabled+0x48/0x280
[  367.776832]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  367.782379]  ? should_fail+0x22d/0xd01
[  367.786278]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  367.791400]  ? zap_class+0x640/0x640
[  367.795141]  ? __lock_is_held+0xb5/0x140
[  367.799216]  ? mark_held_locks+0x130/0x130
[  367.803456]  ? lock_release+0xa00/0xa00
[  367.807461]  ? perf_trace_sched_process_exec+0x860/0x860
[  367.812914]  ? xa_load+0x2ba/0x460
[  367.816465]  ? lock_downgrade+0x900/0x900
[  367.820619]  ? __might_sleep+0x95/0x190
[  367.824603]  __alloc_pages_nodemask+0xad8/0xea0
[  367.829284]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  367.834310]  ? __page_cache_alloc+0x191/0x5c0
[  367.838808]  ? xa_load+0x2e1/0x460
[  367.842377]  ? xa_clear_mark+0x40/0x40
[  367.846269]  ? zap_class+0x640/0x640
[  367.849991]  ? zap_class+0x640/0x640
[  367.853717]  ? zap_class+0x640/0x640
[  367.857437]  ? __do_page_cache_readahead+0x663/0x810
[  367.862549]  ? find_held_lock+0x36/0x1c0
[  367.866617]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  367.872166]  alloc_pages_current+0x173/0x350
[  367.876589]  __page_cache_alloc+0x38c/0x5c0
[  367.880917]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  367.885854]  ? kasan_check_read+0x11/0x20
[  367.890101]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  367.895394]  ? generic_perform_write+0x6a0/0x6a0
[  367.900155]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  367.905698]  ? check_preemption_disabled+0x48/0x280
[  367.910728]  filemap_fault+0x1595/0x25f0
[  367.914807]  ? __lock_page_or_retry+0xa00/0xa00
[  367.919486]  ? mark_held_locks+0x130/0x130
[  367.923732]  ? filemap_map_pages+0xd6b/0x1a20
[  367.928231]  ? lock_downgrade+0x900/0x900
[  367.932388]  ? check_preemption_disabled+0x48/0x280
[  367.937416]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  367.942348]  ? kasan_check_read+0x11/0x20
[  367.946505]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  367.951796]  ? rcu_softirq_qs+0x20/0x20
[  367.955791]  ? filemap_map_pages+0xd92/0x1a20
[  367.960300]  ? find_get_entries_tag+0x1400/0x1400
[  367.965147]  ? debug_object_destroy+0x2b0/0x2b0
[  367.969838]  ? lock_pi_update_atomic+0x150/0x150
[  367.974598]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.980153]  ? lock_acquire+0x1ed/0x520
[  367.984132]  ? ext4_filemap_fault+0x7a/0xad
[  367.988481]  ? lock_release+0xa00/0xa00
[  367.992457]  ? perf_trace_sched_process_exec+0x860/0x860
[  367.997914]  ? print_usage_bug+0xc0/0xc0
[  368.001976]  ? print_usage_bug+0xc0/0xc0
[  368.006061]  ? down_read+0x8d/0x120
[  368.009688]  ? ext4_filemap_fault+0x7a/0xad
[  368.014023]  ? __down_interruptible+0x700/0x700
[  368.018711]  ext4_filemap_fault+0x82/0xad
[  368.022870]  __do_fault+0x100/0x6b0
[  368.026500]  ? find_held_lock+0x36/0x1c0
[  368.030571]  ? pmd_devmap_trans_unstable+0x220/0x220
[  368.035684]  ? mark_held_locks+0x130/0x130
[  368.039935]  ? mark_held_locks+0x130/0x130
[  368.044177]  ? debug_smp_processor_id+0x1c/0x20
[  368.048849]  ? perf_trace_lock+0x14d/0x7a0
[  368.053101]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  368.058650]  __handle_mm_fault+0x3ea0/0x5be0
[  368.063079]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  368.067925]  ? lock_is_held_type+0x210/0x210
[  368.072346]  ? __switch_to_asm+0x34/0x70
[  368.076445]  ? __switch_to_asm+0x34/0x70
[  368.080527]  ? zap_class+0x640/0x640
[  368.084245]  ? zap_class+0x640/0x640
[  368.087958]  ? __x64_sys_futex+0x53e/0x6a0
[  368.092199]  ? find_held_lock+0x36/0x1c0
[  368.096276]  ? handle_mm_fault+0x42a/0xc70
[  368.100521]  ? lock_downgrade+0x900/0x900
[  368.104671]  ? check_preemption_disabled+0x48/0x280
[  368.109695]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  368.114641]  ? kasan_check_read+0x11/0x20
[  368.118795]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  368.124078]  ? rcu_softirq_qs+0x20/0x20
[  368.128054]  ? trace_hardirqs_off_caller+0x310/0x310
[  368.133165]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  368.138707]  ? check_preemption_disabled+0x48/0x280
[  368.143735]  handle_mm_fault+0x54f/0xc70
[  368.147800]  ? __handle_mm_fault+0x5be0/0x5be0
[  368.152392]  ? find_vma+0x34/0x190
[  368.155940]  __do_page_fault+0x5e8/0xe60
[  368.160010]  ? trace_hardirqs_off+0xb8/0x310
[  368.164449]  do_page_fault+0xf2/0x7e0
[  368.168251]  ? vmalloc_sync_all+0x30/0x30
[  368.172401]  ? error_entry+0x70/0xd0
[  368.176148]  ? trace_hardirqs_off_caller+0xbb/0x310
[  368.181170]  ? trace_hardirqs_on_caller+0xc0/0x310
[  368.186103]  ? syscall_return_slowpath+0x5e0/0x5e0
[  368.191072]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  368.195919]  ? trace_hardirqs_on_caller+0x310/0x310
[  368.200938]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  368.206415]  ? prepare_exit_to_usermode+0x291/0x3b0
[  368.211467]  ? page_fault+0x8/0x30
[  368.215018]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  368.219872]  ? page_fault+0x8/0x30
[  368.223422]  page_fault+0x1e/0x30
[  368.226874] RIP: 0033:0x45ddf3
[  368.230084] Code: Bad RIP value.
[  368.233444] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  368.238849] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  368.246115] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  368.253394] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  368.260667] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  368.267938] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  368.275238] warn_alloc_show_mem: 1 callbacks suppressed
[  368.275251] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  368.275252] Mem-Info:
[  368.275283] active_anon:45985 inactive_anon:296 isolated_anon:0
[  368.275283]  active_file:15 inactive_file:8 isolated_file:0
[  368.275283]  unevictable:0 dirty:0 writeback:0 unstable:0
[  368.275283]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  368.275283]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  368.275283]  free:13771 free_pcp:249 free_cma:0
[  368.280623] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  368.280633] Call Trace:
[  368.288031] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  368.290434]  <IRQ>
[  368.323226] 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
[  368.332600]  dump_stack+0x244/0x39d
[  368.335161] lowmem_reserve[]: 0 2818 6321 6321
[  368.362852]  ? dump_stack_print_info.cold.1+0x20/0x20
[  368.364981] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  368.391112]  warn_alloc.cold.116+0xb7/0x1bd
[  368.394708] lowmem_reserve[]: 0 0 3503 3503
[  368.399293]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  368.404459] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  368.431970]  ? lock_downgrade+0x900/0x900
[  368.436269] lowmem_reserve[]: 0 0 0 0
[  368.440595]  ? trace_hardirqs_off+0xb8/0x310
[  368.445409] 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
[  368.474394]  ? trace_hardirqs_off+0xb8/0x310
[  368.478524] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  368.482335]  __alloc_pages_slowpath+0x2651/0x2de0
[  368.486712] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  368.500271]  ? warn_alloc+0x120/0x120
[  368.504646] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  368.519736]  ? print_usage_bug+0xc0/0xc0
[  368.524564] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  368.540007]  ? warn_alloc+0x120/0x120
[  368.543783] 376 total pagecache pages
[  368.552631]  ? warn_alloc+0x120/0x120
[  368.556678] 0 pages in swap cache
[  368.565253]  ? print_usage_bug+0xc0/0xc0
[  368.569036] Swap cache stats: add 0, delete 0, find 0/0
[  368.572834]  ? kvm_clock_read+0x18/0x30
[  368.576609] Free swap  = 0kB
[  368.580062]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  368.584098] Total swap = 0kB
[  368.589471]  ? print_usage_bug+0xc0/0xc0
[  368.593416] 1965979 pages RAM
[  368.596436]  ? __lock_acquire+0x62f/0x4c20
[  368.601426] 0 pages HighMem/MovableOnly
[  368.604449]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  368.608471] 342854 pages reserved
[  368.608480] 0 pages cma reserved
[  368.611588]  ? should_fail+0x22d/0xd01
[  368.615884] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  368.619770]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  368.619792]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  368.619809]  ? __lock_acquire+0x62f/0x4c20
[  368.625402] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  368.628800]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  368.632141] syz-fuzzer cpuset=/ mems_allowed=0
[  368.636036]  ? __lock_acquire+0x62f/0x4c20
[  368.681237]  ? should_fail+0x22d/0xd01
[  368.685137]  ? rcu_irq_exit+0x1a2/0x390
[  368.689137]  ? mark_held_locks+0x130/0x130
[  368.693393]  ? mark_held_locks+0x130/0x130
[  368.697657]  ? mark_held_locks+0xc7/0x130
[  368.701841]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  368.706875]  ? zap_class+0x640/0x640
[  368.710597]  ? print_usage_bug+0xc0/0xc0
[  368.714669]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.720217]  ? check_preemption_disabled+0x48/0x280
[  368.725253]  ? __lock_is_held+0xb5/0x140
[  368.729326]  __alloc_pages_nodemask+0xad8/0xea0
[  368.734014]  ? zap_class+0x640/0x640
[  368.737743]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  368.742781]  ? find_held_lock+0x36/0x1c0
[  368.746876]  ? ____cache_alloc_node+0x1c7/0x1e0
[  368.751559]  ? lock_downgrade+0x900/0x900
[  368.755726]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.761281]  cache_grow_begin+0xa5/0x8c0
[  368.765365]  ? do_raw_spin_unlock+0xa7/0x330
[  368.769793]  fallback_alloc+0x204/0x2e0
[  368.773780]  ____cache_alloc_node+0x1c7/0x1e0
[  368.778296]  kmem_cache_alloc_node+0xe3/0x730
[  368.782798]  ? ipv6_get_ifaddr+0x42e/0x620
[  368.787054]  __alloc_skb+0x119/0x770
[  368.790776]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  368.796066]  ? netdev_alloc_frag+0x1f0/0x1f0
[  368.800486]  ? lock_downgrade+0x900/0x900
[  368.804649]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.810198]  ? refcount_sub_and_test_checked+0x203/0x310
[  368.815664]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  368.821141]  ? addrconf_rs_timer+0x690/0x690
[  368.825581]  ndisc_alloc_skb+0x144/0x340
[  368.829656]  ndisc_send_rs+0x331/0x6e0
[  368.833560]  addrconf_rs_timer+0x314/0x690
[  368.837824]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.842083]  call_timer_fn+0x272/0x920
[  368.845978]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.850228]  ? process_timeout+0x40/0x40
[  368.854303]  ? __run_timers+0x7da/0xc70
[  368.858282]  ? _raw_spin_unlock_irq+0x27/0x80
[  368.862785]  ? _raw_spin_unlock_irq+0x27/0x80
[  368.867295]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.871536]  ? lockdep_hardirqs_on+0x296/0x5b0
[  368.876137]  ? trace_hardirqs_on+0xbd/0x310
[  368.880465]  ? kasan_check_read+0x11/0x20
[  368.884620]  ? __run_timers+0x7da/0xc70
[  368.888604]  ? trace_hardirqs_off_caller+0x310/0x310
[  368.893724]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.897974]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.902223]  __run_timers+0x7e5/0xc70
[  368.906045]  ? timer_fixup_init+0x70/0x70
[  368.910221]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  368.915246]  ? zap_class+0x640/0x640
[  368.918971]  ? enqueue_hrtimer+0x1a5/0x560
[  368.923221]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  368.928427]  ? find_held_lock+0x36/0x1c0
[  368.932502]  ? zap_class+0x640/0x640
[  368.936224]  ? pvclock_read_flags+0x160/0x160
[  368.940743]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.946286]  ? check_preemption_disabled+0x48/0x280
[  368.951320]  ? __lock_is_held+0xb5/0x140
[  368.955392]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.960956]  ? check_preemption_disabled+0x48/0x280
[  368.966054]  run_timer_softirq+0x52/0xb0
[  368.970125]  ? rcu_read_lock_sched_held+0x14f/0x180
[  368.975151]  __do_softirq+0x308/0xb7e
[  368.978957]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  368.983454]  ? lock_downgrade+0x900/0x900
[  368.987618]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  368.992735]  ? pvclock_read_flags+0x160/0x160
[  368.997236]  ? lapic_next_event+0x5a/0x90
[  369.001392]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.006943]  ? kvm_clock_read+0x18/0x30
[  369.010925]  ? kvm_sched_clock_read+0x9/0x20
[  369.015343]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.020926]  ? check_preemption_disabled+0x48/0x280
[  369.025975]  irq_exit+0x17f/0x1c0
[  369.029473]  smp_apic_timer_interrupt+0x1cb/0x760
[  369.034333]  ? smp_reschedule_interrupt+0x109/0x650
[  369.039357]  ? smp_call_function_single_interrupt+0x650/0x650
[  369.045250]  ? interrupt_entry+0xb5/0xc0
[  369.049321]  ? trace_hardirqs_off_caller+0xbb/0x310
[  369.054346]  ? trace_hardirqs_off_caller+0xbb/0x310
[  369.059391]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  369.064247]  ? trace_hardirqs_on_caller+0x310/0x310
[  369.069290]  ? trace_hardirqs_on_caller+0x310/0x310
[  369.074315]  ? task_prio+0x50/0x50
[  369.077871]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.083420]  ? check_preemption_disabled+0x48/0x280
[  369.088448]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  369.093311]  apic_timer_interrupt+0xf/0x20
[  369.097547]  </IRQ>
[  369.099793] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  369.104730] 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 42 f3
[  369.123642] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  369.131369] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  369.138672] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  369.145953] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  369.153256] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  369.160535] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  369.167858]  skb_clone+0x1bb/0x500
[  369.171416]  ? skb_split+0x11e0/0x11e0
[  369.175333]  ? check_preemption_disabled+0x48/0x280
[  369.180720]  ? __this_cpu_preempt_check+0x1c/0x20
[  369.185589]  ? __bpf_redirect+0x55b/0xb60
[  369.189744]  ? __switch_to_asm+0x34/0x70
[  369.193813]  ? __switch_to_asm+0x40/0x70
[  369.197892]  bpf_clone_redirect+0xb9/0x490
[  369.202141]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  369.207173]  ? __sched_text_start+0x8/0x8
[  369.211355]  ? find_held_lock+0x36/0x1c0
[  369.215434]  ? lock_acquire+0x1ed/0x520
[  369.219413]  ? bpf_test_run+0x3cb/0x780
[  369.223394]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.228942]  ? check_preemption_disabled+0x48/0x280
[  369.233971]  ? kasan_check_read+0x11/0x20
[  369.238132]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  369.243413]  ? rcu_softirq_qs+0x20/0x20
[  369.247395]  ? preempt_schedule+0x4d/0x60
[  369.251549]  ? ___preempt_schedule+0x16/0x18
[  369.255973]  ? bpf_test_run+0x25d/0x780
[  369.259975]  ? netlink_diag_dump+0x2a0/0x2a0
[  369.264417]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  369.269968]  ? bpf_test_init.isra.10+0x70/0x100
[  369.274662]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  369.279442]  ? bpf_test_finish.isra.9+0x260/0x260
[  369.284310]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  369.289893]  ? fput+0x130/0x1a0
[  369.293185]  ? __bpf_prog_get+0x9b/0x290
[  369.297261]  ? bpf_test_finish.isra.9+0x260/0x260
[  369.302119]  ? bpf_prog_test_run+0x130/0x1a0
[  369.306541]  ? __x64_sys_bpf+0x3db/0x520
[  369.310610]  ? bpf_prog_get+0x20/0x20
[  369.314443]  ? do_syscall_64+0x1b9/0x820
[  369.318509]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  369.323890]  ? syscall_return_slowpath+0x5e0/0x5e0
[  369.328827]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  369.333684]  ? trace_hardirqs_on_caller+0x310/0x310
[  369.338712]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  369.343743]  ? prepare_exit_to_usermode+0x291/0x3b0
[  369.348775]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  369.353634]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  369.359034] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  369.359099] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  369.366058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  369.366069] Call Trace:
[  369.372690] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  369.381926]  <IRQ>
[  369.384503] syz-executor0 cpuset=syz0 mems_allowed=0
[  369.395007]  dump_stack+0x244/0x39d
[  369.405856]  ? dump_stack_print_info.cold.1+0x20/0x20
[  369.411093]  warn_alloc.cold.116+0xb7/0x1bd
[  369.415437]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  369.420289]  ? lock_downgrade+0x900/0x900
[  369.424447]  ? trace_hardirqs_off+0xb8/0x310
[  369.428864]  ? trace_hardirqs_off+0xb8/0x310
[  369.433311]  __alloc_pages_slowpath+0x2651/0x2de0
[  369.438186]  ? warn_alloc+0x120/0x120
[  369.442006]  ? print_usage_bug+0xc0/0xc0
[  369.446073]  ? warn_alloc+0x120/0x120
[  369.449897]  ? warn_alloc+0x120/0x120
[  369.453708]  ? print_usage_bug+0xc0/0xc0
[  369.457785]  ? print_usage_bug+0xc0/0xc0
[  369.461851]  ? __lock_acquire+0x62f/0x4c20
[  369.466100]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  369.471645]  ? should_fail+0x22d/0xd01
[  369.475543]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  369.480652]  ? __lock_acquire+0x62f/0x4c20
[  369.484898]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  369.490024]  ? __lock_acquire+0x62f/0x4c20
[  369.494261]  ? should_fail+0x22d/0xd01
[  369.498156]  ? find_held_lock+0x36/0x1c0
[  369.502229]  ? mark_held_locks+0x130/0x130
[  369.506475]  ? mark_held_locks+0x130/0x130
[  369.510708]  ? zap_class+0x640/0x640
[  369.514421]  ? zap_class+0x640/0x640
[  369.518144]  ? print_usage_bug+0xc0/0xc0
[  369.522203]  ? do_raw_spin_unlock+0xa7/0x330
[  369.526615]  ? zap_class+0x640/0x640
[  369.530333]  ? print_usage_bug+0xc0/0xc0
[  369.534408]  ? wq_watchdog_touch+0x9c/0xfe
[  369.538650]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.544198]  ? check_preemption_disabled+0x48/0x280
[  369.549225]  ? __lock_is_held+0xb5/0x140
[  369.553322]  __alloc_pages_nodemask+0xad8/0xea0
[  369.558007]  ? zap_class+0x640/0x640
[  369.561730]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  369.566760]  ? find_held_lock+0x36/0x1c0
[  369.570835]  ? ____cache_alloc_node+0x1c7/0x1e0
[  369.575513]  ? lock_downgrade+0x900/0x900
[  369.579673]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.585223]  cache_grow_begin+0xa5/0x8c0
[  369.589307]  ? do_raw_spin_unlock+0xa7/0x330
[  369.593744]  fallback_alloc+0x204/0x2e0
[  369.597739]  ____cache_alloc_node+0x1c7/0x1e0
[  369.602244]  kmem_cache_alloc_node+0xe3/0x730
[  369.606764]  ? ipv6_get_ifaddr+0x42e/0x620
[  369.611049]  __alloc_skb+0x119/0x770
[  369.614782]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  369.620083]  ? netdev_alloc_frag+0x1f0/0x1f0
[  369.624499]  ? lock_downgrade+0x900/0x900
[  369.628658]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.634200]  ? refcount_sub_and_test_checked+0x203/0x310
[  369.639663]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  369.645118]  ? addrconf_rs_timer+0x690/0x690
[  369.649546]  ndisc_alloc_skb+0x144/0x340
[  369.653621]  ndisc_send_rs+0x331/0x6e0
[  369.657517]  addrconf_rs_timer+0x314/0x690
[  369.661765]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  369.666034]  call_timer_fn+0x272/0x920
[  369.669929]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  369.674166]  ? process_timeout+0x40/0x40
[  369.678241]  ? mark_held_locks+0xc7/0x130
[  369.682402]  ? _raw_spin_unlock_irq+0x27/0x80
[  369.686917]  ? _raw_spin_unlock_irq+0x27/0x80
[  369.691431]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  369.695707]  ? lockdep_hardirqs_on+0x296/0x5b0
[  369.700292]  ? trace_hardirqs_on+0xbd/0x310
[  369.704617]  ? kasan_check_read+0x11/0x20
[  369.708768]  ? __run_timers+0x7da/0xc70
[  369.712745]  ? trace_hardirqs_off_caller+0x310/0x310
[  369.717861]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  369.722108]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  369.726376]  __run_timers+0x7e5/0xc70
[  369.730188]  ? timer_fixup_init+0x70/0x70
[  369.734345]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  369.739383]  ? zap_class+0x640/0x640
[  369.743105]  ? print_usage_bug+0xc0/0xc0
[  369.747173]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  369.752377]  ? find_held_lock+0x36/0x1c0
[  369.756447]  ? zap_class+0x640/0x640
[  369.760173]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.765716]  ? check_preemption_disabled+0x48/0x280
[  369.770746]  ? __lock_is_held+0xb5/0x140
[  369.774815]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.780366]  ? check_preemption_disabled+0x48/0x280
[  369.785398]  run_timer_softirq+0x52/0xb0
[  369.789462]  ? rcu_read_lock_sched_held+0x14f/0x180
[  369.794486]  __do_softirq+0x308/0xb7e
[  369.798296]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  369.802795]  ? lock_downgrade+0x900/0x900
[  369.806950]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  369.812068]  ? pvclock_read_flags+0x160/0x160
[  369.816573]  ? lapic_next_event+0x5a/0x90
[  369.820730]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.826277]  ? kvm_clock_read+0x18/0x30
[  369.830254]  ? kvm_sched_clock_read+0x9/0x20
[  369.834675]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  369.840236]  ? check_preemption_disabled+0x48/0x280
[  369.845268]  irq_exit+0x17f/0x1c0
[  369.848730]  smp_apic_timer_interrupt+0x1cb/0x760
[  369.853591]  ? smp_reschedule_interrupt+0x109/0x650
[  369.858628]  ? smp_call_function_single_interrupt+0x650/0x650
[  369.864518]  ? interrupt_entry+0xb5/0xc0
[  369.868594]  ? trace_hardirqs_off_caller+0xbb/0x310
[  369.873609]  ? trace_hardirqs_off_caller+0xbb/0x310
[  369.878631]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  369.883498]  ? trace_hardirqs_on_caller+0x310/0x310
[  369.888519]  ? trace_hardirqs_on_caller+0x310/0x310
[  369.893556]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  369.898422]  apic_timer_interrupt+0xf/0x20
[  369.902655]  </IRQ>
[  369.904896] RIP: 0010:dump_stack+0x358/0x39d
[  369.909322] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  369.928234] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  369.935959] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  369.943229] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  369.950505] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  369.957791] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  369.965077] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  369.972382]  ? dump_stack+0x34f/0x39d
[  369.976231]  ? dump_stack_print_info.cold.1+0x20/0x20
[  369.981443]  ? mark_held_locks+0x130/0x130
[  369.985684]  ? mark_held_locks+0x130/0x130
[  369.989925]  dump_header+0x27b/0xf72
[  369.993654]  ? pagefault_out_of_memory+0x197/0x197
[  369.998596]  ? __lock_acquire+0x62f/0x4c20
[  370.002837]  ? percpu_ref_get_many+0x240/0x240
[  370.007438]  ? print_usage_bug+0xc0/0xc0
[  370.011520]  ? zap_class+0x640/0x640
[  370.015241]  ? print_usage_bug+0xc0/0xc0
[  370.019302]  ? print_usage_bug+0xc0/0xc0
[  370.023389]  ? zap_class+0x640/0x640
[  370.027108]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.032708]  ? find_held_lock+0x36/0x1c0
[  370.036789]  ? mark_held_locks+0xc7/0x130
[  370.040982]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  370.046107]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  370.051216]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  370.055804]  ? trace_hardirqs_on+0xbd/0x310
[  370.060130]  ? kasan_check_read+0x11/0x20
[  370.064310]  ? ___ratelimit+0x3b4/0x672
[  370.068326]  ? trace_hardirqs_off_caller+0x310/0x310
[  370.073443]  ? trace_hardirqs_on+0x310/0x310
[  370.077854]  ? lock_downgrade+0x900/0x900
[  370.082020]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  370.087128]  ? ___ratelimit+0x3b9/0x672
[  370.091114]  ? idr_get_free+0xf70/0xf70
[  370.095094]  ? find_held_lock+0x36/0x1c0
[  370.099167]  oom_kill_process.cold.27+0x10/0x903
[  370.103930]  ? zap_class+0x640/0x640
[  370.107645]  ? check_preemption_disabled+0x48/0x280
[  370.112665]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  370.117598]  ? kasan_check_read+0x11/0x20
[  370.121750]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.127049]  ? oom_evaluate_task+0x540/0x540
[  370.131465]  ? find_held_lock+0x36/0x1c0
[  370.135538]  ? out_of_memory+0x974/0x1430
[  370.139703]  ? lock_downgrade+0x900/0x900
[  370.143853]  ? check_preemption_disabled+0x48/0x280
[  370.148878]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  370.153813]  ? kasan_check_read+0x11/0x20
[  370.157968]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.163273]  ? rcu_softirq_qs+0x20/0x20
[  370.167253]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.172802]  ? oom_evaluate_task+0x302/0x540
[  370.177231]  out_of_memory+0xa84/0x1430
[  370.181215]  ? oom_killer_disable+0x3a0/0x3a0
[  370.185713]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  370.190651]  ? __ww_mutex_check_waiters+0x160/0x160
[  370.195683]  __alloc_pages_slowpath+0x232c/0x2de0
[  370.200558]  ? warn_alloc+0x120/0x120
[  370.204368]  ? mark_held_locks+0x130/0x130
[  370.208612]  ? find_get_entry+0xaae/0x1120
[  370.212880]  ? filemap_map_pages+0x1a20/0x1a20
[  370.217488]  ? zap_class+0x640/0x640
[  370.221238]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.226781]  ? check_preemption_disabled+0x48/0x280
[  370.231815]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.237365]  ? should_fail+0x22d/0xd01
[  370.241260]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  370.246372]  ? zap_class+0x640/0x640
[  370.250114]  ? __lock_is_held+0xb5/0x140
[  370.254183]  ? mark_held_locks+0x130/0x130
[  370.258426]  ? lock_release+0xa00/0xa00
[  370.262406]  ? perf_trace_sched_process_exec+0x860/0x860
[  370.267861]  ? xa_load+0x2ba/0x460
[  370.271408]  ? lock_downgrade+0x900/0x900
[  370.275567]  ? __might_sleep+0x95/0x190
[  370.279553]  __alloc_pages_nodemask+0xad8/0xea0
[  370.284237]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  370.289263]  ? __page_cache_alloc+0x191/0x5c0
[  370.293776]  ? xa_load+0x2e1/0x460
[  370.297332]  ? xa_clear_mark+0x40/0x40
[  370.301232]  ? zap_class+0x640/0x640
[  370.304957]  ? zap_class+0x640/0x640
[  370.308672]  ? zap_class+0x640/0x640
[  370.312543]  ? __do_page_cache_readahead+0x663/0x810
[  370.317655]  ? find_held_lock+0x36/0x1c0
[  370.321727]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  370.327291]  alloc_pages_current+0x173/0x350
[  370.331742]  __page_cache_alloc+0x38c/0x5c0
[  370.336129]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  370.341075]  ? kasan_check_read+0x11/0x20
[  370.345227]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.350512]  ? generic_perform_write+0x6a0/0x6a0
[  370.355270]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.360839]  ? check_preemption_disabled+0x48/0x280
[  370.365867]  filemap_fault+0x1595/0x25f0
[  370.369955]  ? __lock_page_or_retry+0xa00/0xa00
[  370.374631]  ? mark_held_locks+0x130/0x130
[  370.378877]  ? filemap_map_pages+0xd6b/0x1a20
[  370.383386]  ? lock_downgrade+0x900/0x900
[  370.387537]  ? check_preemption_disabled+0x48/0x280
[  370.392565]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  370.397499]  ? kasan_check_read+0x11/0x20
[  370.401651]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.406928]  ? rcu_softirq_qs+0x20/0x20
[  370.410931]  ? filemap_map_pages+0xd92/0x1a20
[  370.415443]  ? find_get_entries_tag+0x1400/0x1400
[  370.420298]  ? debug_object_destroy+0x2b0/0x2b0
[  370.424975]  ? lock_pi_update_atomic+0x150/0x150
[  370.429740]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.435294]  ? lock_acquire+0x1ed/0x520
[  370.439288]  ? ext4_filemap_fault+0x7a/0xad
[  370.443636]  ? lock_release+0xa00/0xa00
[  370.447610]  ? perf_trace_sched_process_exec+0x860/0x860
[  370.453079]  ? print_usage_bug+0xc0/0xc0
[  370.457148]  ? print_usage_bug+0xc0/0xc0
[  370.461224]  ? down_read+0x8d/0x120
[  370.464850]  ? ext4_filemap_fault+0x7a/0xad
[  370.469179]  ? __down_interruptible+0x700/0x700
[  370.473876]  ext4_filemap_fault+0x82/0xad
[  370.478039]  __do_fault+0x100/0x6b0
[  370.481665]  ? find_held_lock+0x36/0x1c0
[  370.485735]  ? pmd_devmap_trans_unstable+0x220/0x220
[  370.490861]  ? mark_held_locks+0x130/0x130
[  370.495100]  ? mark_held_locks+0x130/0x130
[  370.499340]  ? debug_smp_processor_id+0x1c/0x20
[  370.504112]  ? perf_trace_lock+0x14d/0x7a0
[  370.508391]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.513939]  __handle_mm_fault+0x3ea0/0x5be0
[  370.518364]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  370.523209]  ? lock_is_held_type+0x210/0x210
[  370.527626]  ? __switch_to_asm+0x34/0x70
[  370.531685]  ? __switch_to_asm+0x34/0x70
[  370.535790]  ? zap_class+0x640/0x640
[  370.539508]  ? zap_class+0x640/0x640
[  370.543240]  ? __x64_sys_futex+0x53e/0x6a0
[  370.547484]  ? find_held_lock+0x36/0x1c0
[  370.551555]  ? handle_mm_fault+0x42a/0xc70
[  370.555796]  ? lock_downgrade+0x900/0x900
[  370.559945]  ? check_preemption_disabled+0x48/0x280
[  370.565036]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  370.569966]  ? kasan_check_read+0x11/0x20
[  370.574140]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.579419]  ? rcu_softirq_qs+0x20/0x20
[  370.583397]  ? trace_hardirqs_off_caller+0x310/0x310
[  370.588508]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.594049]  ? check_preemption_disabled+0x48/0x280
[  370.599080]  handle_mm_fault+0x54f/0xc70
[  370.603164]  ? __handle_mm_fault+0x5be0/0x5be0
[  370.607752]  ? find_vma+0x34/0x190
[  370.611302]  __do_page_fault+0x5e8/0xe60
[  370.615372]  ? trace_hardirqs_off+0xb8/0x310
[  370.619794]  do_page_fault+0xf2/0x7e0
[  370.623596]  ? vmalloc_sync_all+0x30/0x30
[  370.627746]  ? error_entry+0x70/0xd0
[  370.631465]  ? trace_hardirqs_off_caller+0xbb/0x310
[  370.636484]  ? trace_hardirqs_on_caller+0xc0/0x310
[  370.641425]  ? syscall_return_slowpath+0x5e0/0x5e0
[  370.646355]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  370.651208]  ? trace_hardirqs_on_caller+0x310/0x310
[  370.656228]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  370.661694]  ? prepare_exit_to_usermode+0x291/0x3b0
[  370.666713]  ? page_fault+0x8/0x30
[  370.670258]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  370.675107]  ? page_fault+0x8/0x30
[  370.678648]  page_fault+0x1e/0x30
[  370.682102] RIP: 0033:0x45ddf3
[  370.685311] Code: Bad RIP value.
[  370.688671] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  370.694033] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  370.701304] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  370.708575] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  370.715847] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  370.723121] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  370.730418] warn_alloc_show_mem: 1 callbacks suppressed
[  370.730431] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  370.730433] Mem-Info:
[  370.730464] active_anon:45985 inactive_anon:296 isolated_anon:0
[  370.730464]  active_file:15 inactive_file:8 isolated_file:0
[  370.730464]  unevictable:0 dirty:0 writeback:0 unstable:0
[  370.730464]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  370.730464]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  370.730464]  free:13771 free_pcp:249 free_cma:0
[  370.735806] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  370.743180] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  370.745581] Call Trace:
[  370.778374] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  370.787754]  <IRQ>
[  370.815420] lowmem_reserve[]: 0 2818 6321 6321
[  370.818038]  dump_stack+0x244/0x39d
[  370.844128] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  370.846287]  ? dump_stack_print_info.cold.1+0x20/0x20
[  370.850835] lowmem_reserve[]: 0 0 3503 3503
[  370.854493]  warn_alloc.cold.116+0xb7/0x1bd
[  370.881970] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  370.887184]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  370.891478] lowmem_reserve[]: 0 0 0 0
[  370.895807]  ? lock_downgrade+0x900/0x900
[  370.924762] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  370.929619]  ? trace_hardirqs_off+0xb8/0x310
[  370.933398] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  370.937551]  ? trace_hardirqs_off+0xb8/0x310
[  370.951051] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  370.955471]  __alloc_pages_slowpath+0x2651/0x2de0
[  370.970541] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  370.974972]  ? warn_alloc+0x120/0x120
[  370.990373] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  370.995219]  ? print_usage_bug+0xc0/0xc0
[  371.004033] 376 total pagecache pages
[  371.007836]  ? warn_alloc+0x120/0x120
[  371.016400] 0 pages in swap cache
[  371.020463]  ? warn_alloc+0x120/0x120
[  371.024234] Swap cache stats: add 0, delete 0, find 0/0
[  371.024242] Free swap  = 0kB
[  371.028047]  ? print_usage_bug+0xc0/0xc0
[  371.031481] Total swap = 0kB
[  371.031504] 1965979 pages RAM
[  371.035300]  ? kvm_clock_read+0x18/0x30
[  371.040639] 0 pages HighMem/MovableOnly
[  371.043685]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  371.047715] 342854 pages reserved
[  371.050732]  ? print_usage_bug+0xc0/0xc0
[  371.053816] 0 pages cma reserved
[  371.053901] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  371.057815]  ? __lock_acquire+0x62f/0x4c20
[  371.061869] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  371.066796]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  371.070224] syz-fuzzer cpuset=/ mems_allowed=0
[  371.074282]  ? should_fail+0x22d/0xd01
[  371.112537]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  371.117845]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  371.122961]  ? __lock_acquire+0x62f/0x4c20
[  371.127210]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  371.132316]  ? __lock_acquire+0x62f/0x4c20
[  371.136556]  ? should_fail+0x22d/0xd01
[  371.140444]  ? rcu_irq_exit+0x1a2/0x390
[  371.144433]  ? mark_held_locks+0x130/0x130
[  371.148675]  ? mark_held_locks+0x130/0x130
[  371.152929]  ? mark_held_locks+0xc7/0x130
[  371.157080]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  371.162103]  ? zap_class+0x640/0x640
[  371.165818]  ? print_usage_bug+0xc0/0xc0
[  371.169890]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.175438]  ? check_preemption_disabled+0x48/0x280
[  371.180871]  ? __lock_is_held+0xb5/0x140
[  371.184941]  __alloc_pages_nodemask+0xad8/0xea0
[  371.189620]  ? zap_class+0x640/0x640
[  371.193345]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  371.198375]  ? find_held_lock+0x36/0x1c0
[  371.202453]  ? ____cache_alloc_node+0x1c7/0x1e0
[  371.207128]  ? lock_downgrade+0x900/0x900
[  371.211292]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.216842]  cache_grow_begin+0xa5/0x8c0
[  371.220932]  ? do_raw_spin_unlock+0xa7/0x330
[  371.225352]  fallback_alloc+0x204/0x2e0
[  371.229342]  ____cache_alloc_node+0x1c7/0x1e0
[  371.233848]  kmem_cache_alloc_node+0xe3/0x730
[  371.238375]  ? ipv6_get_ifaddr+0x42e/0x620
[  371.242627]  __alloc_skb+0x119/0x770
[  371.246345]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  371.251634]  ? netdev_alloc_frag+0x1f0/0x1f0
[  371.256052]  ? lock_downgrade+0x900/0x900
[  371.260211]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.265766]  ? refcount_sub_and_test_checked+0x203/0x310
[  371.271244]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  371.276704]  ? addrconf_rs_timer+0x690/0x690
[  371.281130]  ndisc_alloc_skb+0x144/0x340
[  371.285201]  ndisc_send_rs+0x331/0x6e0
[  371.289100]  addrconf_rs_timer+0x314/0x690
[  371.293348]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  371.297595]  call_timer_fn+0x272/0x920
[  371.301488]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  371.305727]  ? process_timeout+0x40/0x40
[  371.309797]  ? __run_timers+0x7da/0xc70
[  371.313779]  ? _raw_spin_unlock_irq+0x27/0x80
[  371.318278]  ? _raw_spin_unlock_irq+0x27/0x80
[  371.322776]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  371.327027]  ? lockdep_hardirqs_on+0x296/0x5b0
[  371.331615]  ? trace_hardirqs_on+0xbd/0x310
[  371.335938]  ? kasan_check_read+0x11/0x20
[  371.340087]  ? __run_timers+0x7da/0xc70
[  371.344066]  ? trace_hardirqs_off_caller+0x310/0x310
[  371.349183]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  371.353475]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  371.357709]  __run_timers+0x7e5/0xc70
[  371.361555]  ? timer_fixup_init+0x70/0x70
[  371.365716]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  371.370737]  ? zap_class+0x640/0x640
[  371.374456]  ? enqueue_hrtimer+0x1a5/0x560
[  371.378696]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  371.383923]  ? find_held_lock+0x36/0x1c0
[  371.388044]  ? zap_class+0x640/0x640
[  371.391795]  ? pvclock_read_flags+0x160/0x160
[  371.396299]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.401844]  ? check_preemption_disabled+0x48/0x280
[  371.406894]  ? __lock_is_held+0xb5/0x140
[  371.410980]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.416532]  ? check_preemption_disabled+0x48/0x280
[  371.421557]  run_timer_softirq+0x52/0xb0
[  371.425627]  ? rcu_read_lock_sched_held+0x14f/0x180
[  371.430652]  __do_softirq+0x308/0xb7e
[  371.434461]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  371.438956]  ? lock_downgrade+0x900/0x900
[  371.443112]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  371.448232]  ? pvclock_read_flags+0x160/0x160
[  371.452730]  ? lapic_next_event+0x5a/0x90
[  371.456898]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.462449]  ? kvm_clock_read+0x18/0x30
[  371.466424]  ? kvm_sched_clock_read+0x9/0x20
[  371.470834]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.476394]  ? check_preemption_disabled+0x48/0x280
[  371.481432]  irq_exit+0x17f/0x1c0
[  371.484896]  smp_apic_timer_interrupt+0x1cb/0x760
[  371.489743]  ? smp_reschedule_interrupt+0x109/0x650
[  371.494780]  ? smp_call_function_single_interrupt+0x650/0x650
[  371.500684]  ? interrupt_entry+0xb5/0xc0
[  371.504752]  ? trace_hardirqs_off_caller+0xbb/0x310
[  371.509784]  ? trace_hardirqs_off_caller+0xbb/0x310
[  371.514817]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  371.519661]  ? trace_hardirqs_on_caller+0x310/0x310
[  371.524687]  ? trace_hardirqs_on_caller+0x310/0x310
[  371.529718]  ? task_prio+0x50/0x50
[  371.533279]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.538823]  ? check_preemption_disabled+0x48/0x280
[  371.543855]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  371.548724]  apic_timer_interrupt+0xf/0x20
[  371.552971]  </IRQ>
[  371.555222] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  371.560157] 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 42 f3
[  371.579081] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  371.586804] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  371.594088] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  371.601372] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  371.608647] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  371.615941] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  371.623264]  skb_clone+0x1bb/0x500
[  371.626814]  ? skb_split+0x11e0/0x11e0
[  371.630707]  ? check_preemption_disabled+0x48/0x280
[  371.635733]  ? __this_cpu_preempt_check+0x1c/0x20
[  371.640581]  ? __bpf_redirect+0x55b/0xb60
[  371.644733]  ? __switch_to_asm+0x34/0x70
[  371.648808]  ? __switch_to_asm+0x40/0x70
[  371.652881]  bpf_clone_redirect+0xb9/0x490
[  371.657125]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  371.662147]  ? __sched_text_start+0x8/0x8
[  371.666314]  ? find_held_lock+0x36/0x1c0
[  371.670399]  ? lock_acquire+0x1ed/0x520
[  371.674387]  ? bpf_test_run+0x3cb/0x780
[  371.678364]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.683909]  ? check_preemption_disabled+0x48/0x280
[  371.688952]  ? kasan_check_read+0x11/0x20
[  371.693106]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  371.698383]  ? rcu_softirq_qs+0x20/0x20
[  371.702362]  ? preempt_schedule+0x4d/0x60
[  371.706515]  ? ___preempt_schedule+0x16/0x18
[  371.710941]  ? bpf_test_run+0x25d/0x780
[  371.714935]  ? netlink_diag_dump+0x2a0/0x2a0
[  371.719352]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  371.724897]  ? bpf_test_init.isra.10+0x70/0x100
[  371.729577]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  371.734352]  ? bpf_test_finish.isra.9+0x260/0x260
[  371.739199]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  371.744742]  ? fput+0x130/0x1a0
[  371.748032]  ? __bpf_prog_get+0x9b/0x290
[  371.752131]  ? bpf_test_finish.isra.9+0x260/0x260
[  371.756985]  ? bpf_prog_test_run+0x130/0x1a0
[  371.761414]  ? __x64_sys_bpf+0x3db/0x520
[  371.765481]  ? bpf_prog_get+0x20/0x20
[  371.769322]  ? do_syscall_64+0x1b9/0x820
[  371.773388]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  371.778763]  ? syscall_return_slowpath+0x5e0/0x5e0
[  371.783697]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  371.788550]  ? trace_hardirqs_on_caller+0x310/0x310
[  371.793579]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  371.798603]  ? prepare_exit_to_usermode+0x291/0x3b0
[  371.803631]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  371.808486]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  371.813882] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  371.813966] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  371.820898] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  371.820903] Call Trace:
[  371.820910]  <IRQ>
[  371.820930]  dump_stack+0x244/0x39d
[  371.820948]  ? dump_stack_print_info.cold.1+0x20/0x20
[  371.820972]  warn_alloc.cold.116+0xb7/0x1bd
[  371.827509] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  371.836815]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  371.839378] syz-executor0 cpuset=syz0 mems_allowed=0
[  371.841524]  ? lock_downgrade+0x900/0x900
[  371.879184]  ? trace_hardirqs_off+0xb8/0x310
[  371.883601]  ? trace_hardirqs_off+0xb8/0x310
[  371.888032]  __alloc_pages_slowpath+0x2651/0x2de0
[  371.892909]  ? warn_alloc+0x120/0x120
[  371.896715]  ? print_usage_bug+0xc0/0xc0
[  371.900810]  ? warn_alloc+0x120/0x120
[  371.904622]  ? warn_alloc+0x120/0x120
[  371.908427]  ? print_usage_bug+0xc0/0xc0
[  371.912492]  ? kvm_clock_read+0x18/0x30
[  371.916488]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  371.921526]  ? print_usage_bug+0xc0/0xc0
[  371.925598]  ? __lock_acquire+0x62f/0x4c20
[  371.929886]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  371.935449]  ? should_fail+0x22d/0xd01
[  371.939340]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  371.944643]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  371.949753]  ? __lock_acquire+0x62f/0x4c20
[  371.953994]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  371.959121]  ? __lock_acquire+0x62f/0x4c20
[  371.963356]  ? should_fail+0x22d/0xd01
[  371.967275]  ? rcu_irq_exit+0x1a2/0x390
[  371.971260]  ? mark_held_locks+0x130/0x130
[  371.975505]  ? mark_held_locks+0x130/0x130
[  371.979751]  ? mark_held_locks+0xc7/0x130
[  371.983904]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  371.988923]  ? zap_class+0x640/0x640
[  371.992644]  ? print_usage_bug+0xc0/0xc0
[  371.996709]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.002253]  ? check_preemption_disabled+0x48/0x280
[  372.007287]  ? __lock_is_held+0xb5/0x140
[  372.011366]  __alloc_pages_nodemask+0xad8/0xea0
[  372.016055]  ? zap_class+0x640/0x640
[  372.019777]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  372.024808]  ? find_held_lock+0x36/0x1c0
[  372.028885]  ? ____cache_alloc_node+0x1c7/0x1e0
[  372.033557]  ? lock_downgrade+0x900/0x900
[  372.037750]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.043297]  cache_grow_begin+0xa5/0x8c0
[  372.047368]  ? do_raw_spin_unlock+0xa7/0x330
[  372.051799]  fallback_alloc+0x204/0x2e0
[  372.055785]  ____cache_alloc_node+0x1c7/0x1e0
[  372.060303]  kmem_cache_alloc_node+0xe3/0x730
[  372.064801]  ? ipv6_get_ifaddr+0x42e/0x620
[  372.069049]  __alloc_skb+0x119/0x770
[  372.072764]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  372.078057]  ? netdev_alloc_frag+0x1f0/0x1f0
[  372.082489]  ? lock_downgrade+0x900/0x900
[  372.086651]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.092192]  ? refcount_sub_and_test_checked+0x203/0x310
[  372.097672]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  372.103149]  ? addrconf_rs_timer+0x690/0x690
[  372.107575]  ndisc_alloc_skb+0x144/0x340
[  372.111647]  ndisc_send_rs+0x331/0x6e0
[  372.115543]  addrconf_rs_timer+0x314/0x690
[  372.119797]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.124069]  call_timer_fn+0x272/0x920
[  372.127975]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.132218]  ? process_timeout+0x40/0x40
[  372.136289]  ? mark_held_locks+0xc7/0x130
[  372.140442]  ? _raw_spin_unlock_irq+0x27/0x80
[  372.144940]  ? _raw_spin_unlock_irq+0x27/0x80
[  372.149439]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.153683]  ? lockdep_hardirqs_on+0x296/0x5b0
[  372.158273]  ? trace_hardirqs_on+0xbd/0x310
[  372.162605]  ? kasan_check_read+0x11/0x20
[  372.166753]  ? __run_timers+0x7da/0xc70
[  372.170732]  ? trace_hardirqs_off_caller+0x310/0x310
[  372.175844]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.180104]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.184349]  __run_timers+0x7e5/0xc70
[  372.188168]  ? timer_fixup_init+0x70/0x70
[  372.192324]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  372.197347]  ? zap_class+0x640/0x640
[  372.201076]  ? print_usage_bug+0xc0/0xc0
[  372.205146]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  372.210345]  ? find_held_lock+0x36/0x1c0
[  372.214432]  ? zap_class+0x640/0x640
[  372.218169]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.223711]  ? check_preemption_disabled+0x48/0x280
[  372.228743]  ? __lock_is_held+0xb5/0x140
[  372.232808]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.238354]  ? check_preemption_disabled+0x48/0x280
[  372.243391]  run_timer_softirq+0x52/0xb0
[  372.247458]  ? rcu_read_lock_sched_held+0x14f/0x180
[  372.252481]  __do_softirq+0x308/0xb7e
[  372.256291]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  372.260787]  ? lock_downgrade+0x900/0x900
[  372.264958]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  372.270077]  ? pvclock_read_flags+0x160/0x160
[  372.274581]  ? lapic_next_event+0x5a/0x90
[  372.278765]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.284340]  ? kvm_clock_read+0x18/0x30
[  372.288372]  ? kvm_sched_clock_read+0x9/0x20
[  372.292835]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  372.298386]  ? check_preemption_disabled+0x48/0x280
[  372.303423]  irq_exit+0x17f/0x1c0
[  372.306884]  smp_apic_timer_interrupt+0x1cb/0x760
[  372.311892]  ? smp_reschedule_interrupt+0x109/0x650
[  372.317126]  ? smp_call_function_single_interrupt+0x650/0x650
[  372.323034]  ? interrupt_entry+0xb5/0xc0
[  372.327105]  ? trace_hardirqs_off_caller+0xbb/0x310
[  372.332126]  ? trace_hardirqs_off_caller+0xbb/0x310
[  372.337153]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  372.342056]  ? trace_hardirqs_on_caller+0x310/0x310
[  372.347079]  ? trace_hardirqs_on_caller+0x310/0x310
[  372.352211]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  372.357075]  apic_timer_interrupt+0xf/0x20
[  372.361307]  </IRQ>
[  372.363551] RIP: 0010:dump_stack+0x358/0x39d
[  372.367959] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  372.386857] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  372.394580] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  372.401849] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  372.409115] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  372.416387] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  372.423699] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  372.430991]  ? dump_stack+0x34f/0x39d
[  372.434828]  ? dump_stack_print_info.cold.1+0x20/0x20
[  372.440035]  ? mark_held_locks+0x130/0x130
[  372.444273]  ? mark_held_locks+0x130/0x130
[  372.448516]  dump_header+0x27b/0xf72
[  372.452263]  ? pagefault_out_of_memory+0x197/0x197
[  372.457200]  ? __lock_acquire+0x62f/0x4c20
[  372.461439]  ? percpu_ref_get_many+0x240/0x240
[  372.466029]  ? print_usage_bug+0xc0/0xc0
[  372.470100]  ? zap_class+0x640/0x640
[  372.473868]  ? print_usage_bug+0xc0/0xc0
[  372.477925]  ? print_usage_bug+0xc0/0xc0
[  372.482040]  ? zap_class+0x640/0x640
[  372.485778]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.491330]  ? find_held_lock+0x36/0x1c0
[  372.495409]  ? mark_held_locks+0xc7/0x130
[  372.499560]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  372.504677]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  372.509781]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  372.514369]  ? trace_hardirqs_on+0xbd/0x310
[  372.518689]  ? kasan_check_read+0x11/0x20
[  372.522870]  ? ___ratelimit+0x3b4/0x672
[  372.526846]  ? trace_hardirqs_off_caller+0x310/0x310
[  372.531949]  ? trace_hardirqs_on+0x310/0x310
[  372.536360]  ? lock_downgrade+0x900/0x900
[  372.540521]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  372.545628]  ? ___ratelimit+0x3b9/0x672
[  372.549603]  ? idr_get_free+0xf70/0xf70
[  372.553579]  ? find_held_lock+0x36/0x1c0
[  372.557654]  oom_kill_process.cold.27+0x10/0x903
[  372.562409]  ? zap_class+0x640/0x640
[  372.566126]  ? check_preemption_disabled+0x48/0x280
[  372.571144]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  372.576071]  ? kasan_check_read+0x11/0x20
[  372.580220]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  372.585499]  ? oom_evaluate_task+0x540/0x540
[  372.589911]  ? find_held_lock+0x36/0x1c0
[  372.593995]  ? out_of_memory+0x974/0x1430
[  372.598154]  ? lock_downgrade+0x900/0x900
[  372.602303]  ? check_preemption_disabled+0x48/0x280
[  372.607324]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  372.612269]  ? kasan_check_read+0x11/0x20
[  372.616446]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  372.621734]  ? rcu_softirq_qs+0x20/0x20
[  372.625730]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  372.631266]  ? oom_evaluate_task+0x302/0x540
[  372.635709]  out_of_memory+0xa84/0x1430
[  372.639693]  ? oom_killer_disable+0x3a0/0x3a0
[  372.644215]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  372.649171]  ? __ww_mutex_check_waiters+0x160/0x160
[  372.654205]  __alloc_pages_slowpath+0x232c/0x2de0
[  372.659079]  ? warn_alloc+0x120/0x120
[  372.662874]  ? mark_held_locks+0x130/0x130
[  372.667132]  ? find_get_entry+0xaae/0x1120
[  372.671381]  ? filemap_map_pages+0x1a20/0x1a20
[  372.675998]  ? zap_class+0x640/0x640
[  372.679742]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.685281]  ? check_preemption_disabled+0x48/0x280
[  372.690298]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  372.695845]  ? should_fail+0x22d/0xd01
[  372.699771]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  372.704874]  ? zap_class+0x640/0x640
[  372.708612]  ? __lock_is_held+0xb5/0x140
[  372.712682]  ? mark_held_locks+0x130/0x130
[  372.716917]  ? lock_release+0xa00/0xa00
[  372.720904]  ? perf_trace_sched_process_exec+0x860/0x860
[  372.726353]  ? xa_load+0x2ba/0x460
[  372.729897]  ? lock_downgrade+0x900/0x900
[  372.734049]  ? __might_sleep+0x95/0x190
[  372.738043]  __alloc_pages_nodemask+0xad8/0xea0
[  372.742718]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  372.747743]  ? __page_cache_alloc+0x191/0x5c0
[  372.752239]  ? xa_load+0x2e1/0x460
[  372.755781]  ? xa_clear_mark+0x40/0x40
[  372.759682]  ? zap_class+0x640/0x640
[  372.763404]  ? zap_class+0x640/0x640
[  372.767176]  ? zap_class+0x640/0x640
[  372.770906]  ? __do_page_cache_readahead+0x663/0x810
[  372.776027]  ? find_held_lock+0x36/0x1c0
[  372.780091]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  372.785637]  alloc_pages_current+0x173/0x350
[  372.790056]  __page_cache_alloc+0x38c/0x5c0
[  372.794377]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  372.799319]  ? kasan_check_read+0x11/0x20
[  372.803465]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  372.808746]  ? generic_perform_write+0x6a0/0x6a0
[  372.813506]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  372.819063]  ? check_preemption_disabled+0x48/0x280
[  372.824087]  filemap_fault+0x1595/0x25f0
[  372.828165]  ? __lock_page_or_retry+0xa00/0xa00
[  372.832839]  ? mark_held_locks+0x130/0x130
[  372.837097]  ? filemap_map_pages+0xd6b/0x1a20
[  372.841593]  ? lock_downgrade+0x900/0x900
[  372.845757]  ? check_preemption_disabled+0x48/0x280
[  372.850832]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  372.855774]  ? kasan_check_read+0x11/0x20
[  372.859918]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  372.865199]  ? rcu_softirq_qs+0x20/0x20
[  372.869187]  ? filemap_map_pages+0xd92/0x1a20
[  372.873698]  ? find_get_entries_tag+0x1400/0x1400
[  372.878544]  ? debug_object_destroy+0x2b0/0x2b0
[  372.883215]  ? lock_pi_update_atomic+0x150/0x150
[  372.887973]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.893529]  ? lock_acquire+0x1ed/0x520
[  372.897502]  ? ext4_filemap_fault+0x7a/0xad
[  372.901830]  ? lock_release+0xa00/0xa00
[  372.905806]  ? perf_trace_sched_process_exec+0x860/0x860
[  372.911257]  ? print_usage_bug+0xc0/0xc0
[  372.915323]  ? print_usage_bug+0xc0/0xc0
[  372.919399]  ? down_read+0x8d/0x120
[  372.923035]  ? ext4_filemap_fault+0x7a/0xad
[  372.927361]  ? __down_interruptible+0x700/0x700
[  372.932049]  ext4_filemap_fault+0x82/0xad
[  372.936198]  __do_fault+0x100/0x6b0
[  372.939827]  ? find_held_lock+0x36/0x1c0
[  372.943890]  ? pmd_devmap_trans_unstable+0x220/0x220
[  372.948995]  ? mark_held_locks+0x130/0x130
[  372.953248]  ? mark_held_locks+0x130/0x130
[  372.957484]  ? debug_smp_processor_id+0x1c/0x20
[  372.962156]  ? perf_trace_lock+0x14d/0x7a0
[  372.966397]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  372.971939]  __handle_mm_fault+0x3ea0/0x5be0
[  372.976357]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  372.981204]  ? lock_is_held_type+0x210/0x210
[  372.985617]  ? __switch_to_asm+0x34/0x70
[  372.989680]  ? __switch_to_asm+0x34/0x70
[  372.993754]  ? zap_class+0x640/0x640
[  372.997470]  ? zap_class+0x640/0x640
[  373.001183]  ? __x64_sys_futex+0x53e/0x6a0
[  373.005423]  ? find_held_lock+0x36/0x1c0
[  373.009492]  ? handle_mm_fault+0x42a/0xc70
[  373.013728]  ? lock_downgrade+0x900/0x900
[  373.017873]  ? check_preemption_disabled+0x48/0x280
[  373.022892]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  373.027852]  ? kasan_check_read+0x11/0x20
[  373.032007]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  373.037314]  ? rcu_softirq_qs+0x20/0x20
[  373.041313]  ? trace_hardirqs_off_caller+0x310/0x310
[  373.046417]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  373.051957]  ? check_preemption_disabled+0x48/0x280
[  373.056991]  handle_mm_fault+0x54f/0xc70
[  373.061109]  ? __handle_mm_fault+0x5be0/0x5be0
[  373.065696]  ? find_vma+0x34/0x190
[  373.069246]  __do_page_fault+0x5e8/0xe60
[  373.073318]  ? trace_hardirqs_off+0xb8/0x310
[  373.077735]  do_page_fault+0xf2/0x7e0
[  373.081535]  ? vmalloc_sync_all+0x30/0x30
[  373.085688]  ? error_entry+0x70/0xd0
[  373.089434]  ? trace_hardirqs_off_caller+0xbb/0x310
[  373.094452]  ? trace_hardirqs_on_caller+0xc0/0x310
[  373.099386]  ? syscall_return_slowpath+0x5e0/0x5e0
[  373.104316]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  373.109159]  ? trace_hardirqs_on_caller+0x310/0x310
[  373.114176]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  373.119631]  ? prepare_exit_to_usermode+0x291/0x3b0
[  373.124647]  ? page_fault+0x8/0x30
[  373.128208]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  373.133055]  ? page_fault+0x8/0x30
[  373.136593]  page_fault+0x1e/0x30
[  373.140046] RIP: 0033:0x45ddf3
[  373.143248] Code: Bad RIP value.
[  373.146608] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  373.151971] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  373.159245] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  373.166510] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  373.173784] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  373.181056] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  373.188354] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  373.188359] warn_alloc_show_mem: 1 callbacks suppressed
[  373.188371] Mem-Info:
[  373.195727] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  373.201096] active_anon:45985 inactive_anon:296 isolated_anon:0
[  373.201096]  active_file:15 inactive_file:8 isolated_file:0
[  373.201096]  unevictable:0 dirty:0 writeback:0 unstable:0
[  373.201096]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  373.201096]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  373.201096]  free:13771 free_pcp:249 free_cma:0
[  373.203470] Call Trace:
[  373.212873] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  373.245630]  <IRQ>
[  373.248204] 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
[  373.275877]  dump_stack+0x244/0x39d
[  373.277996] lowmem_reserve[]: 0 2818 6321 6321
[  373.304119]  ? dump_stack_print_info.cold.1+0x20/0x20
[  373.307724] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  373.312312]  warn_alloc.cold.116+0xb7/0x1bd
[  373.317469] lowmem_reserve[]: 0 0 3503 3503
[  373.344973]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  373.349271] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  373.353590]  ? lock_downgrade+0x900/0x900
[  373.358406] lowmem_reserve[]: 0 0 0 0
[  373.387380]  ? trace_hardirqs_off+0xb8/0x310
[  373.391506] 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
[  373.395303]  ? trace_hardirqs_off+0xb8/0x310
[  373.399683] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  373.413220]  __alloc_pages_slowpath+0x2651/0x2de0
[  373.417601] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  373.432788]  ? warn_alloc+0x120/0x120
[  373.437594] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  373.453037]  ? print_usage_bug+0xc0/0xc0
[  373.456816] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  373.465647]  ? warn_alloc+0x120/0x120
[  373.469684] 376 total pagecache pages
[  373.478260]  ? warn_alloc+0x120/0x120
[  373.482045] 0 pages in swap cache
[  373.485869]  ? print_usage_bug+0xc0/0xc0
[  373.489642] Swap cache stats: add 0, delete 0, find 0/0
[  373.493101]  ? print_usage_bug+0xc0/0xc0
[  373.497160] Free swap  = 0kB
[  373.502521]  ? __lock_acquire+0x62f/0x4c20
[  373.506559] Total swap = 0kB
[  373.509579]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  373.513799] 1965979 pages RAM
[  373.516830]  ? should_fail+0x22d/0xd01
[  373.522350] 0 pages HighMem/MovableOnly
[  373.522358] 342854 pages reserved
[  373.525461]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  373.529321] 0 pages cma reserved
[  373.533329]  ? __lock_acquire+0x62f/0x4c20
[  373.536832] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  373.541877]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  373.541896]  ? __lock_acquire+0x62f/0x4c20
[  373.545302] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  373.549473]  ? should_fail+0x22d/0xd01
[  373.555960] syz-fuzzer cpuset=/ mems_allowed=0
[  373.561060]  ? find_held_lock+0x36/0x1c0
[  373.588031]  ? mark_held_locks+0x130/0x130
[  373.592274]  ? mark_held_locks+0x130/0x130
[  373.596507]  ? zap_class+0x640/0x640
[  373.600226]  ? zap_class+0x640/0x640
[  373.603961]  ? print_usage_bug+0xc0/0xc0
[  373.608070]  ? do_raw_spin_unlock+0xa7/0x330
[  373.612484]  ? zap_class+0x640/0x640
[  373.616207]  ? print_usage_bug+0xc0/0xc0
[  373.620268]  ? wq_watchdog_touch+0x9c/0xfe
[  373.624514]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.630057]  ? check_preemption_disabled+0x48/0x280
[  373.635093]  ? __lock_is_held+0xb5/0x140
[  373.639163]  __alloc_pages_nodemask+0xad8/0xea0
[  373.643837]  ? zap_class+0x640/0x640
[  373.647565]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  373.652600]  ? find_held_lock+0x36/0x1c0
[  373.656677]  ? ____cache_alloc_node+0x1c7/0x1e0
[  373.661399]  ? lock_downgrade+0x900/0x900
[  373.665557]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.671125]  cache_grow_begin+0xa5/0x8c0
[  373.675212]  ? do_raw_spin_unlock+0xa7/0x330
[  373.679637]  fallback_alloc+0x204/0x2e0
[  373.683621]  ____cache_alloc_node+0x1c7/0x1e0
[  373.688130]  kmem_cache_alloc_node+0xe3/0x730
[  373.692627]  ? ipv6_get_ifaddr+0x42e/0x620
[  373.696896]  __alloc_skb+0x119/0x770
[  373.700611]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  373.705902]  ? netdev_alloc_frag+0x1f0/0x1f0
[  373.710338]  ? lock_downgrade+0x900/0x900
[  373.714495]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.720041]  ? refcount_sub_and_test_checked+0x203/0x310
[  373.725506]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  373.730964]  ? addrconf_rs_timer+0x690/0x690
[  373.735387]  ndisc_alloc_skb+0x144/0x340
[  373.739459]  ndisc_send_rs+0x331/0x6e0
[  373.743359]  addrconf_rs_timer+0x314/0x690
[  373.747600]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  373.751868]  call_timer_fn+0x272/0x920
[  373.755757]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  373.760009]  ? process_timeout+0x40/0x40
[  373.764080]  ? __run_timers+0x7da/0xc70
[  373.768077]  ? _raw_spin_unlock_irq+0x27/0x80
[  373.772572]  ? _raw_spin_unlock_irq+0x27/0x80
[  373.777070]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  373.781311]  ? lockdep_hardirqs_on+0x296/0x5b0
[  373.785898]  ? trace_hardirqs_on+0xbd/0x310
[  373.790231]  ? kasan_check_read+0x11/0x20
[  373.794386]  ? __run_timers+0x7da/0xc70
[  373.798364]  ? trace_hardirqs_off_caller+0x310/0x310
[  373.803478]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  373.807720]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  373.811959]  __run_timers+0x7e5/0xc70
[  373.815805]  ? timer_fixup_init+0x70/0x70
[  373.819960]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  373.824977]  ? zap_class+0x640/0x640
[  373.828708]  ? enqueue_hrtimer+0x1a5/0x560
[  373.832955]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  373.838162]  ? find_held_lock+0x36/0x1c0
[  373.842237]  ? zap_class+0x640/0x640
[  373.845962]  ? pvclock_read_flags+0x160/0x160
[  373.850468]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.856021]  ? check_preemption_disabled+0x48/0x280
[  373.861066]  ? __lock_is_held+0xb5/0x140
[  373.865161]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.870705]  ? check_preemption_disabled+0x48/0x280
[  373.875762]  run_timer_softirq+0x52/0xb0
[  373.879850]  ? rcu_read_lock_sched_held+0x14f/0x180
[  373.885574]  __do_softirq+0x308/0xb7e
[  373.889387]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  373.893890]  ? lock_downgrade+0x900/0x900
[  373.898052]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  373.903165]  ? pvclock_read_flags+0x160/0x160
[  373.907664]  ? lapic_next_event+0x5a/0x90
[  373.911824]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.917371]  ? kvm_clock_read+0x18/0x30
[  373.921352]  ? kvm_sched_clock_read+0x9/0x20
[  373.925772]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.931350]  ? check_preemption_disabled+0x48/0x280
[  373.936429]  irq_exit+0x17f/0x1c0
[  373.939904]  smp_apic_timer_interrupt+0x1cb/0x760
[  373.944751]  ? smp_reschedule_interrupt+0x109/0x650
[  373.949770]  ? smp_call_function_single_interrupt+0x650/0x650
[  373.955828]  ? interrupt_entry+0xb5/0xc0
[  373.959897]  ? trace_hardirqs_off_caller+0xbb/0x310
[  373.964950]  ? trace_hardirqs_off_caller+0xbb/0x310
[  373.969987]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  373.974858]  ? trace_hardirqs_on_caller+0x310/0x310
[  373.979884]  ? trace_hardirqs_on_caller+0x310/0x310
[  373.984933]  ? task_prio+0x50/0x50
[  373.988500]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.994047]  ? check_preemption_disabled+0x48/0x280
[  373.999083]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  374.003939]  apic_timer_interrupt+0xf/0x20
[  374.008175]  </IRQ>
[  374.010426] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  374.015364] 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 42 f3
[  374.034280] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  374.042008] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  374.049286] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  374.056578] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  374.063856] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  374.071140] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  374.078489]  skb_clone+0x1bb/0x500
[  374.082044]  ? skb_split+0x11e0/0x11e0
[  374.085937]  ? check_preemption_disabled+0x48/0x280
[  374.090963]  ? __this_cpu_preempt_check+0x1c/0x20
[  374.095811]  ? __bpf_redirect+0x55b/0xb60
[  374.099977]  ? __switch_to_asm+0x34/0x70
[  374.104048]  ? __switch_to_asm+0x40/0x70
[  374.108130]  bpf_clone_redirect+0xb9/0x490
[  374.112467]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  374.117498]  ? __sched_text_start+0x8/0x8
[  374.121668]  ? find_held_lock+0x36/0x1c0
[  374.125746]  ? lock_acquire+0x1ed/0x520
[  374.129729]  ? bpf_test_run+0x3cb/0x780
[  374.133715]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.139266]  ? check_preemption_disabled+0x48/0x280
[  374.144296]  ? kasan_check_read+0x11/0x20
[  374.148453]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  374.153739]  ? rcu_softirq_qs+0x20/0x20
[  374.157723]  ? preempt_schedule+0x4d/0x60
[  374.161881]  ? ___preempt_schedule+0x16/0x18
[  374.166305]  ? bpf_test_run+0x25d/0x780
[  374.170308]  ? netlink_diag_dump+0x2a0/0x2a0
[  374.174725]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  374.180273]  ? bpf_test_init.isra.10+0x70/0x100
[  374.184955]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  374.189730]  ? bpf_test_finish.isra.9+0x260/0x260
[  374.194580]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  374.200124]  ? fput+0x130/0x1a0
[  374.203414]  ? __bpf_prog_get+0x9b/0x290
[  374.207487]  ? bpf_test_finish.isra.9+0x260/0x260
[  374.212336]  ? bpf_prog_test_run+0x130/0x1a0
[  374.216751]  ? __x64_sys_bpf+0x3db/0x520
[  374.220846]  ? bpf_prog_get+0x20/0x20
[  374.224678]  ? do_syscall_64+0x1b9/0x820
[  374.228744]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  374.234117]  ? syscall_return_slowpath+0x5e0/0x5e0
[  374.239051]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  374.243909]  ? trace_hardirqs_on_caller+0x310/0x310
[  374.248935]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  374.253968]  ? prepare_exit_to_usermode+0x291/0x3b0
[  374.259011]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  374.263878]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  374.269265] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  374.269331] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  374.276280] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  374.276289] Call Trace:
[  374.282938] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  374.292125]  <IRQ>
[  374.294703] syz-executor0 cpuset=syz0 mems_allowed=0
[  374.305198]  dump_stack+0x244/0x39d
[  374.316194]  ? dump_stack_print_info.cold.1+0x20/0x20
[  374.321403]  warn_alloc.cold.116+0xb7/0x1bd
[  374.325730]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  374.330580]  ? lock_downgrade+0x900/0x900
[  374.334736]  ? trace_hardirqs_off+0xb8/0x310
[  374.339156]  ? trace_hardirqs_off+0xb8/0x310
[  374.343577]  __alloc_pages_slowpath+0x2651/0x2de0
[  374.348456]  ? warn_alloc+0x120/0x120
[  374.352261]  ? print_usage_bug+0xc0/0xc0
[  374.356325]  ? warn_alloc+0x120/0x120
[  374.360134]  ? warn_alloc+0x120/0x120
[  374.363940]  ? print_usage_bug+0xc0/0xc0
[  374.368062]  ? print_usage_bug+0xc0/0xc0
[  374.372133]  ? __lock_acquire+0x62f/0x4c20
[  374.376382]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  374.381922]  ? should_fail+0x22d/0xd01
[  374.385860]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  374.390994]  ? __lock_acquire+0x62f/0x4c20
[  374.395255]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  374.400377]  ? __lock_acquire+0x62f/0x4c20
[  374.404631]  ? should_fail+0x22d/0xd01
[  374.408527]  ? find_held_lock+0x36/0x1c0
[  374.412599]  ? mark_held_locks+0x130/0x130
[  374.416841]  ? mark_held_locks+0x130/0x130
[  374.421084]  ? zap_class+0x640/0x640
[  374.424803]  ? zap_class+0x640/0x640
[  374.428520]  ? print_usage_bug+0xc0/0xc0
[  374.432582]  ? do_raw_spin_unlock+0xa7/0x330
[  374.436995]  ? zap_class+0x640/0x640
[  374.440719]  ? print_usage_bug+0xc0/0xc0
[  374.444781]  ? wq_watchdog_touch+0x9c/0xfe
[  374.449033]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.454584]  ? check_preemption_disabled+0x48/0x280
[  374.459616]  ? __lock_is_held+0xb5/0x140
[  374.463688]  __alloc_pages_nodemask+0xad8/0xea0
[  374.468359]  ? zap_class+0x640/0x640
[  374.472087]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  374.477117]  ? find_held_lock+0x36/0x1c0
[  374.481193]  ? ____cache_alloc_node+0x1c7/0x1e0
[  374.485864]  ? lock_downgrade+0x900/0x900
[  374.490036]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.495583]  cache_grow_begin+0xa5/0x8c0
[  374.499650]  ? do_raw_spin_unlock+0xa7/0x330
[  374.504076]  fallback_alloc+0x204/0x2e0
[  374.508065]  ____cache_alloc_node+0x1c7/0x1e0
[  374.512567]  kmem_cache_alloc_node+0xe3/0x730
[  374.517065]  ? ipv6_get_ifaddr+0x42e/0x620
[  374.521320]  __alloc_skb+0x119/0x770
[  374.525043]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  374.530341]  ? netdev_alloc_frag+0x1f0/0x1f0
[  374.534764]  ? lock_downgrade+0x900/0x900
[  374.538937]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.544476]  ? refcount_sub_and_test_checked+0x203/0x310
[  374.549936]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  374.555398]  ? addrconf_rs_timer+0x690/0x690
[  374.559865]  ndisc_alloc_skb+0x144/0x340
[  374.563935]  ndisc_send_rs+0x331/0x6e0
[  374.567862]  addrconf_rs_timer+0x314/0x690
[  374.572121]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  374.576376]  call_timer_fn+0x272/0x920
[  374.580271]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  374.584510]  ? process_timeout+0x40/0x40
[  374.588586]  ? mark_held_locks+0xc7/0x130
[  374.592756]  ? _raw_spin_unlock_irq+0x27/0x80
[  374.597263]  ? _raw_spin_unlock_irq+0x27/0x80
[  374.601764]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  374.606010]  ? lockdep_hardirqs_on+0x296/0x5b0
[  374.610599]  ? trace_hardirqs_on+0xbd/0x310
[  374.614924]  ? kasan_check_read+0x11/0x20
[  374.619092]  ? __run_timers+0x7da/0xc70
[  374.623077]  ? trace_hardirqs_off_caller+0x310/0x310
[  374.628200]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  374.632445]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  374.636698]  __run_timers+0x7e5/0xc70
[  374.640510]  ? timer_fixup_init+0x70/0x70
[  374.644663]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  374.649689]  ? zap_class+0x640/0x640
[  374.653412]  ? print_usage_bug+0xc0/0xc0
[  374.657478]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  374.662685]  ? find_held_lock+0x36/0x1c0
[  374.666752]  ? zap_class+0x640/0x640
[  374.670478]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.676032]  ? check_preemption_disabled+0x48/0x280
[  374.681064]  ? __lock_is_held+0xb5/0x140
[  374.685135]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.690690]  ? check_preemption_disabled+0x48/0x280
[  374.695747]  run_timer_softirq+0x52/0xb0
[  374.699852]  ? rcu_read_lock_sched_held+0x14f/0x180
[  374.704915]  __do_softirq+0x308/0xb7e
[  374.708726]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  374.713225]  ? lock_downgrade+0x900/0x900
[  374.717387]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  374.722503]  ? pvclock_read_flags+0x160/0x160
[  374.727011]  ? lapic_next_event+0x5a/0x90
[  374.731186]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.736765]  ? kvm_clock_read+0x18/0x30
[  374.740746]  ? kvm_sched_clock_read+0x9/0x20
[  374.745159]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  374.750715]  ? check_preemption_disabled+0x48/0x280
[  374.755787]  irq_exit+0x17f/0x1c0
[  374.759247]  smp_apic_timer_interrupt+0x1cb/0x760
[  374.764093]  ? smp_reschedule_interrupt+0x109/0x650
[  374.769127]  ? smp_call_function_single_interrupt+0x650/0x650
[  374.775040]  ? interrupt_entry+0xb5/0xc0
[  374.779109]  ? trace_hardirqs_off_caller+0xbb/0x310
[  374.784124]  ? trace_hardirqs_off_caller+0xbb/0x310
[  374.789142]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  374.793992]  ? trace_hardirqs_on_caller+0x310/0x310
[  374.799031]  ? trace_hardirqs_on_caller+0x310/0x310
[  374.804069]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  374.808935]  apic_timer_interrupt+0xf/0x20
[  374.813169]  </IRQ>
[  374.815438] RIP: 0010:dump_stack+0x358/0x39d
[  374.819861] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  374.838770] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  374.846486] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  374.853777] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  374.861095] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  374.868400] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  374.875671] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  374.882981]  ? dump_stack+0x34f/0x39d
[  374.886803]  ? dump_stack_print_info.cold.1+0x20/0x20
[  374.892007]  ? mark_held_locks+0x130/0x130
[  374.896250]  ? mark_held_locks+0x130/0x130
[  374.900494]  dump_header+0x27b/0xf72
[  374.904224]  ? pagefault_out_of_memory+0x197/0x197
[  374.909179]  ? __lock_acquire+0x62f/0x4c20
[  374.913431]  ? percpu_ref_get_many+0x240/0x240
[  374.918036]  ? print_usage_bug+0xc0/0xc0
[  374.922120]  ? zap_class+0x640/0x640
[  374.925854]  ? print_usage_bug+0xc0/0xc0
[  374.929918]  ? print_usage_bug+0xc0/0xc0
[  374.933986]  ? zap_class+0x640/0x640
[  374.937714]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.943257]  ? find_held_lock+0x36/0x1c0
[  374.947342]  ? mark_held_locks+0xc7/0x130
[  374.951513]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  374.956620]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  374.961741]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  374.966331]  ? trace_hardirqs_on+0xbd/0x310
[  374.970660]  ? kasan_check_read+0x11/0x20
[  374.974810]  ? ___ratelimit+0x3b4/0x672
[  374.978787]  ? trace_hardirqs_off_caller+0x310/0x310
[  374.983909]  ? trace_hardirqs_on+0x310/0x310
[  374.988343]  ? lock_downgrade+0x900/0x900
[  374.992505]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  374.997614]  ? ___ratelimit+0x3b9/0x672
[  375.001594]  ? idr_get_free+0xf70/0xf70
[  375.005573]  ? find_held_lock+0x36/0x1c0
[  375.009647]  oom_kill_process.cold.27+0x10/0x903
[  375.014410]  ? zap_class+0x640/0x640
[  375.018141]  ? check_preemption_disabled+0x48/0x280
[  375.023160]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  375.028088]  ? kasan_check_read+0x11/0x20
[  375.032237]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  375.037517]  ? oom_evaluate_task+0x540/0x540
[  375.041936]  ? find_held_lock+0x36/0x1c0
[  375.046016]  ? out_of_memory+0x974/0x1430
[  375.050173]  ? lock_downgrade+0x900/0x900
[  375.054334]  ? check_preemption_disabled+0x48/0x280
[  375.059379]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  375.064320]  ? kasan_check_read+0x11/0x20
[  375.068471]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  375.073751]  ? rcu_softirq_qs+0x20/0x20
[  375.077729]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  375.083271]  ? oom_evaluate_task+0x302/0x540
[  375.087688]  out_of_memory+0xa84/0x1430
[  375.091672]  ? oom_killer_disable+0x3a0/0x3a0
[  375.096170]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  375.101107]  ? __ww_mutex_check_waiters+0x160/0x160
[  375.106141]  __alloc_pages_slowpath+0x232c/0x2de0
[  375.111023]  ? warn_alloc+0x120/0x120
[  375.114827]  ? mark_held_locks+0x130/0x130
[  375.119066]  ? find_get_entry+0xaae/0x1120
[  375.123311]  ? filemap_map_pages+0x1a20/0x1a20
[  375.127899]  ? zap_class+0x640/0x640
[  375.131623]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.137163]  ? check_preemption_disabled+0x48/0x280
[  375.142185]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  375.147725]  ? should_fail+0x22d/0xd01
[  375.151620]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  375.156740]  ? zap_class+0x640/0x640
[  375.160494]  ? __lock_is_held+0xb5/0x140
[  375.164577]  ? mark_held_locks+0x130/0x130
[  375.168843]  ? lock_release+0xa00/0xa00
[  375.172838]  ? perf_trace_sched_process_exec+0x860/0x860
[  375.178295]  ? xa_load+0x2ba/0x460
[  375.181840]  ? lock_downgrade+0x900/0x900
[  375.185995]  ? __might_sleep+0x95/0x190
[  375.190013]  __alloc_pages_nodemask+0xad8/0xea0
[  375.194711]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  375.199732]  ? __page_cache_alloc+0x191/0x5c0
[  375.204224]  ? xa_load+0x2e1/0x460
[  375.207761]  ? xa_clear_mark+0x40/0x40
[  375.211653]  ? zap_class+0x640/0x640
[  375.215379]  ? zap_class+0x640/0x640
[  375.219169]  ? zap_class+0x640/0x640
[  375.222908]  ? __do_page_cache_readahead+0x663/0x810
[  375.228031]  ? find_held_lock+0x36/0x1c0
[  375.232104]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  375.237650]  alloc_pages_current+0x173/0x350
[  375.242070]  __page_cache_alloc+0x38c/0x5c0
[  375.246397]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  375.251326]  ? kasan_check_read+0x11/0x20
[  375.255491]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  375.260802]  ? generic_perform_write+0x6a0/0x6a0
[  375.265602]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  375.271158]  ? check_preemption_disabled+0x48/0x280
[  375.276189]  filemap_fault+0x1595/0x25f0
[  375.280267]  ? __lock_page_or_retry+0xa00/0xa00
[  375.284945]  ? mark_held_locks+0x130/0x130
[  375.289196]  ? filemap_map_pages+0xd6b/0x1a20
[  375.293695]  ? lock_downgrade+0x900/0x900
[  375.297847]  ? check_preemption_disabled+0x48/0x280
[  375.302871]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  375.307801]  ? kasan_check_read+0x11/0x20
[  375.311950]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  375.317251]  ? rcu_softirq_qs+0x20/0x20
[  375.321279]  ? filemap_map_pages+0xd92/0x1a20
[  375.325799]  ? find_get_entries_tag+0x1400/0x1400
[  375.330657]  ? debug_object_destroy+0x2b0/0x2b0
[  375.335326]  ? lock_pi_update_atomic+0x150/0x150
[  375.340092]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.345640]  ? lock_acquire+0x1ed/0x520
[  375.349613]  ? ext4_filemap_fault+0x7a/0xad
[  375.353952]  ? lock_release+0xa00/0xa00
[  375.357926]  ? perf_trace_sched_process_exec+0x860/0x860
[  375.363383]  ? print_usage_bug+0xc0/0xc0
[  375.367450]  ? print_usage_bug+0xc0/0xc0
[  375.371521]  ? down_read+0x8d/0x120
[  375.375162]  ? ext4_filemap_fault+0x7a/0xad
[  375.379482]  ? __down_interruptible+0x700/0x700
[  375.384164]  ext4_filemap_fault+0x82/0xad
[  375.388317]  __do_fault+0x100/0x6b0
[  375.391949]  ? find_held_lock+0x36/0x1c0
[  375.396038]  ? pmd_devmap_trans_unstable+0x220/0x220
[  375.401145]  ? mark_held_locks+0x130/0x130
[  375.405385]  ? mark_held_locks+0x130/0x130
[  375.409622]  ? debug_smp_processor_id+0x1c/0x20
[  375.414292]  ? perf_trace_lock+0x14d/0x7a0
[  375.418534]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  375.424079]  __handle_mm_fault+0x3ea0/0x5be0
[  375.428501]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  375.433349]  ? lock_is_held_type+0x210/0x210
[  375.437800]  ? __switch_to_asm+0x34/0x70
[  375.441863]  ? __switch_to_asm+0x34/0x70
[  375.445938]  ? zap_class+0x640/0x640
[  375.449651]  ? zap_class+0x640/0x640
[  375.453373]  ? __x64_sys_futex+0x53e/0x6a0
[  375.457613]  ? find_held_lock+0x36/0x1c0
[  375.461685]  ? handle_mm_fault+0x42a/0xc70
[  375.465925]  ? lock_downgrade+0x900/0x900
[  375.470081]  ? check_preemption_disabled+0x48/0x280
[  375.475111]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  375.480060]  ? kasan_check_read+0x11/0x20
[  375.484211]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  375.489493]  ? rcu_softirq_qs+0x20/0x20
[  375.493469]  ? trace_hardirqs_off_caller+0x310/0x310
[  375.498574]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  375.504133]  ? check_preemption_disabled+0x48/0x280
[  375.509175]  handle_mm_fault+0x54f/0xc70
[  375.513240]  ? __handle_mm_fault+0x5be0/0x5be0
[  375.517841]  ? find_vma+0x34/0x190
[  375.521394]  __do_page_fault+0x5e8/0xe60
[  375.525457]  ? trace_hardirqs_off+0xb8/0x310
[  375.529877]  do_page_fault+0xf2/0x7e0
[  375.533680]  ? vmalloc_sync_all+0x30/0x30
[  375.537833]  ? error_entry+0x70/0xd0
[  375.541637]  ? trace_hardirqs_off_caller+0xbb/0x310
[  375.546653]  ? trace_hardirqs_on_caller+0xc0/0x310
[  375.551584]  ? syscall_return_slowpath+0x5e0/0x5e0
[  375.556517]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  375.561373]  ? trace_hardirqs_on_caller+0x310/0x310
[  375.566396]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  375.571855]  ? prepare_exit_to_usermode+0x291/0x3b0
[  375.576883]  ? page_fault+0x8/0x30
[  375.580427]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  375.585278]  ? page_fault+0x8/0x30
[  375.588824]  page_fault+0x1e/0x30
[  375.592277] RIP: 0033:0x45ddf3
[  375.595490] Code: Bad RIP value.
[  375.598855] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  375.604217] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  375.611486] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  375.618762] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  375.626043] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  375.633311] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  375.640607] warn_alloc_show_mem: 1 callbacks suppressed
[  375.640619] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  375.640621] Mem-Info:
[  375.640652] active_anon:45985 inactive_anon:296 isolated_anon:0
[  375.640652]  active_file:15 inactive_file:8 isolated_file:0
[  375.640652]  unevictable:0 dirty:0 writeback:0 unstable:0
[  375.640652]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  375.640652]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  375.640652]  free:13771 free_pcp:249 free_cma:0
[  375.645997] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  375.653384] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  375.655778] Call Trace:
[  375.688583] 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
[  375.697937]  <IRQ>
[  375.725610] lowmem_reserve[]: 0 2818 6321 6321
[  375.728224]  dump_stack+0x244/0x39d
[  375.754314] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  375.756478]  ? dump_stack_print_info.cold.1+0x20/0x20
[  375.761023] lowmem_reserve[]: 0 0 3503 3503
[  375.764701]  warn_alloc.cold.116+0xb7/0x1bd
[  375.792177] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  375.797377]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  375.801701] lowmem_reserve[]: 0 0 0 0
[  375.806034]  ? lock_downgrade+0x900/0x900
[  375.834993] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  375.839858]  ? trace_hardirqs_off+0xb8/0x310
[  375.843630] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  375.847790]  ? trace_hardirqs_off+0xb8/0x310
[  375.861309] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  375.865741]  __alloc_pages_slowpath+0x2651/0x2de0
[  375.880826] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  375.885266]  ? warn_alloc+0x120/0x120
[  375.900671] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  375.905520]  ? warn_alloc+0x120/0x120
[  375.914351] 376 total pagecache pages
[  375.918159]  ? zap_class+0x640/0x640
[  375.926715] 0 pages in swap cache
[  375.930512]  ? warn_alloc+0x120/0x120
[  375.934287] Swap cache stats: add 0, delete 0, find 0/0
[  375.937996]  ? print_usage_bug+0xc0/0xc0
[  375.941426] Free swap  = 0kB
[  375.945229]  ? print_usage_bug+0xc0/0xc0
[  375.950559] Total swap = 0kB
[  375.950567] 1965979 pages RAM
[  375.954631]  ? __lock_is_held+0xb5/0x140
[  375.957611] 0 pages HighMem/MovableOnly
[  375.957620] 342854 pages reserved
[  375.961684]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  375.964667] 0 pages cma reserved
[  375.964737] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  375.967780]  ? should_fail+0x22d/0xd01
[  375.971908] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  375.975794]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  375.979219] syz-fuzzer cpuset=/ mems_allowed=0
[  375.984752]  ? __lock_acquire+0x62f/0x4c20
[  376.022610]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  376.027753]  ? __lock_acquire+0x62f/0x4c20
[  376.032000]  ? should_fail+0x22d/0xd01
[  376.035918]  ? mark_held_locks+0x130/0x130
[  376.040162]  ? mark_held_locks+0x130/0x130
[  376.044406]  ? __enqueue_entity+0x10d/0x1f0
[  376.048743]  ? zap_class+0x640/0x640
[  376.052461]  ? print_usage_bug+0xc0/0xc0
[  376.056541]  ? __lock_acquire+0x62f/0x4c20
[  376.060796]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.066348]  ? check_preemption_disabled+0x48/0x280
[  376.071383]  ? __lock_is_held+0xb5/0x140
[  376.075455]  __alloc_pages_nodemask+0xad8/0xea0
[  376.080134]  ? zap_class+0x640/0x640
[  376.083855]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  376.088896]  ? find_held_lock+0x36/0x1c0
[  376.092973]  ? ____cache_alloc_node+0x1c7/0x1e0
[  376.097656]  ? lock_downgrade+0x900/0x900
[  376.101816]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.107398]  cache_grow_begin+0xa5/0x8c0
[  376.111466]  ? do_raw_spin_unlock+0xa7/0x330
[  376.115901]  fallback_alloc+0x204/0x2e0
[  376.119901]  ____cache_alloc_node+0x1c7/0x1e0
[  376.124410]  kmem_cache_alloc_node+0xe3/0x730
[  376.128917]  ? ipv6_get_ifaddr+0x42e/0x620
[  376.133170]  __alloc_skb+0x119/0x770
[  376.136891]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  376.142178]  ? netdev_alloc_frag+0x1f0/0x1f0
[  376.146597]  ? lock_downgrade+0x900/0x900
[  376.150761]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.156309]  ? refcount_sub_and_test_checked+0x203/0x310
[  376.161774]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  376.167235]  ? addrconf_rs_timer+0x690/0x690
[  376.171663]  ndisc_alloc_skb+0x144/0x340
[  376.175734]  ndisc_send_rs+0x331/0x6e0
[  376.179640]  addrconf_rs_timer+0x314/0x690
[  376.183889]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.188154]  call_timer_fn+0x272/0x920
[  376.192046]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.196298]  ? process_timeout+0x40/0x40
[  376.200372]  ? __run_timers+0x7da/0xc70
[  376.204355]  ? _raw_spin_unlock_irq+0x27/0x80
[  376.208852]  ? _raw_spin_unlock_irq+0x27/0x80
[  376.213354]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.217596]  ? lockdep_hardirqs_on+0x296/0x5b0
[  376.222191]  ? trace_hardirqs_on+0xbd/0x310
[  376.226520]  ? kasan_check_read+0x11/0x20
[  376.230678]  ? __run_timers+0x7da/0xc70
[  376.234658]  ? trace_hardirqs_off_caller+0x310/0x310
[  376.239781]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.244031]  __run_timers+0x7e5/0xc70
[  376.247848]  ? timer_fixup_init+0x70/0x70
[  376.252019]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  376.257054]  ? zap_class+0x640/0x640
[  376.260777]  ? enqueue_hrtimer+0x1a5/0x560
[  376.265027]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  376.270231]  ? find_held_lock+0x36/0x1c0
[  376.274302]  ? zap_class+0x640/0x640
[  376.278031]  ? pvclock_read_flags+0x160/0x160
[  376.282535]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.288074]  ? check_preemption_disabled+0x48/0x280
[  376.293106]  ? __lock_is_held+0xb5/0x140
[  376.297172]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.302710]  ? check_preemption_disabled+0x48/0x280
[  376.307732]  run_timer_softirq+0x52/0xb0
[  376.312314]  ? rcu_read_lock_sched_held+0x14f/0x180
[  376.317334]  __do_softirq+0x308/0xb7e
[  376.321138]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  376.325636]  ? lock_downgrade+0x900/0x900
[  376.329789]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  376.334900]  ? pvclock_read_flags+0x160/0x160
[  376.339397]  ? lapic_next_event+0x5a/0x90
[  376.343548]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.349095]  ? kvm_clock_read+0x18/0x30
[  376.353068]  ? kvm_sched_clock_read+0x9/0x20
[  376.357483]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.363031]  ? check_preemption_disabled+0x48/0x280
[  376.368061]  irq_exit+0x17f/0x1c0
[  376.371518]  smp_apic_timer_interrupt+0x1cb/0x760
[  376.376361]  ? smp_reschedule_interrupt+0x109/0x650
[  376.381378]  ? smp_call_function_single_interrupt+0x650/0x650
[  376.387279]  ? interrupt_entry+0xb5/0xc0
[  376.391354]  ? trace_hardirqs_off_caller+0xbb/0x310
[  376.396368]  ? trace_hardirqs_off_caller+0xbb/0x310
[  376.401390]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  376.406237]  ? trace_hardirqs_on_caller+0x310/0x310
[  376.411253]  ? trace_hardirqs_on_caller+0x310/0x310
[  376.416274]  ? task_prio+0x50/0x50
[  376.419820]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.425364]  ? check_preemption_disabled+0x48/0x280
[  376.430382]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  376.435237]  apic_timer_interrupt+0xf/0x20
[  376.439466]  </IRQ>
[  376.441720] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  376.446681] 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 42 f3
[  376.465578] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  376.473284] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  376.480569] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  376.487837] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  376.495101] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  376.502368] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  376.509672]  skb_clone+0x1bb/0x500
[  376.513215]  ? skb_split+0x11e0/0x11e0
[  376.517102]  ? check_preemption_disabled+0x48/0x280
[  376.522121]  ? __this_cpu_preempt_check+0x1c/0x20
[  376.526963]  ? __bpf_redirect+0x55b/0xb60
[  376.531109]  ? __switch_to_asm+0x34/0x70
[  376.535184]  ? __switch_to_asm+0x40/0x70
[  376.539251]  bpf_clone_redirect+0xb9/0x490
[  376.543493]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  376.548518]  ? __sched_text_start+0x8/0x8
[  376.552698]  ? find_held_lock+0x36/0x1c0
[  376.556782]  ? lock_acquire+0x1ed/0x520
[  376.560757]  ? bpf_test_run+0x3cb/0x780
[  376.564753]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.570291]  ? check_preemption_disabled+0x48/0x280
[  376.575352]  ? kasan_check_read+0x11/0x20
[  376.579501]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  376.584780]  ? rcu_softirq_qs+0x20/0x20
[  376.588754]  ? preempt_schedule+0x4d/0x60
[  376.592904]  ? ___preempt_schedule+0x16/0x18
[  376.597318]  ? bpf_test_run+0x25d/0x780
[  376.601303]  ? netlink_diag_dump+0x2a0/0x2a0
[  376.605727]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  376.611261]  ? bpf_test_init.isra.10+0x70/0x100
[  376.615950]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  376.620720]  ? bpf_test_finish.isra.9+0x260/0x260
[  376.625563]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  376.631103]  ? fput+0x130/0x1a0
[  376.634404]  ? __bpf_prog_get+0x9b/0x290
[  376.638470]  ? bpf_test_finish.isra.9+0x260/0x260
[  376.643311]  ? bpf_prog_test_run+0x130/0x1a0
[  376.647720]  ? __x64_sys_bpf+0x3db/0x520
[  376.651782]  ? bpf_prog_get+0x20/0x20
[  376.655603]  ? do_syscall_64+0x1b9/0x820
[  376.659662]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  376.665038]  ? syscall_return_slowpath+0x5e0/0x5e0
[  376.669970]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  376.674828]  ? trace_hardirqs_on_caller+0x310/0x310
[  376.679843]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  376.684873]  ? prepare_exit_to_usermode+0x291/0x3b0
[  376.689917]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  376.694766]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  376.700148] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  376.700217] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  376.707163] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  376.707171] Call Trace:
[  376.713735] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  376.722990]  <IRQ>
[  376.725567] syz-executor0 cpuset=syz0 mems_allowed=0
[  376.736060]  dump_stack+0x244/0x39d
[  376.746899]  ? dump_stack_print_info.cold.1+0x20/0x20
[  376.752105]  warn_alloc.cold.116+0xb7/0x1bd
[  376.756431]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  376.761283]  ? lock_downgrade+0x900/0x900
[  376.765442]  ? trace_hardirqs_off+0xb8/0x310
[  376.769852]  ? trace_hardirqs_off+0xb8/0x310
[  376.774266]  __alloc_pages_slowpath+0x2651/0x2de0
[  376.779142]  ? warn_alloc+0x120/0x120
[  376.782983]  ? print_usage_bug+0xc0/0xc0
[  376.787052]  ? warn_alloc+0x120/0x120
[  376.790880]  ? warn_alloc+0x120/0x120
[  376.794701]  ? print_usage_bug+0xc0/0xc0
[  376.798765]  ? kvm_clock_read+0x18/0x30
[  376.802740]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  376.807756]  ? print_usage_bug+0xc0/0xc0
[  376.811817]  ? __lock_acquire+0x62f/0x4c20
[  376.816058]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  376.821599]  ? should_fail+0x22d/0xd01
[  376.825486]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  376.830766]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  376.835867]  ? __lock_acquire+0x62f/0x4c20
[  376.840123]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  376.845227]  ? __lock_acquire+0x62f/0x4c20
[  376.849461]  ? should_fail+0x22d/0xd01
[  376.853386]  ? rcu_irq_exit+0x1a2/0x390
[  376.857390]  ? mark_held_locks+0x130/0x130
[  376.861633]  ? mark_held_locks+0x130/0x130
[  376.865877]  ? mark_held_locks+0xc7/0x130
[  376.870051]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  376.875072]  ? zap_class+0x640/0x640
[  376.878790]  ? print_usage_bug+0xc0/0xc0
[  376.882873]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.888413]  ? check_preemption_disabled+0x48/0x280
[  376.893441]  ? __lock_is_held+0xb5/0x140
[  376.897518]  __alloc_pages_nodemask+0xad8/0xea0
[  376.902190]  ? zap_class+0x640/0x640
[  376.905911]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  376.910948]  ? find_held_lock+0x36/0x1c0
[  376.915027]  ? ____cache_alloc_node+0x1c7/0x1e0
[  376.919712]  ? lock_downgrade+0x900/0x900
[  376.923867]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.929411]  cache_grow_begin+0xa5/0x8c0
[  376.933492]  ? do_raw_spin_unlock+0xa7/0x330
[  376.937907]  fallback_alloc+0x204/0x2e0
[  376.941885]  ____cache_alloc_node+0x1c7/0x1e0
[  376.946397]  kmem_cache_alloc_node+0xe3/0x730
[  376.950895]  ? ipv6_get_ifaddr+0x42e/0x620
[  376.955155]  __alloc_skb+0x119/0x770
[  376.958868]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  376.964182]  ? netdev_alloc_frag+0x1f0/0x1f0
[  376.968588]  ? lock_downgrade+0x900/0x900
[  376.972740]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.978294]  ? refcount_sub_and_test_checked+0x203/0x310
[  376.983747]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  376.989199]  ? addrconf_rs_timer+0x690/0x690
[  376.993619]  ndisc_alloc_skb+0x144/0x340
[  376.997688]  ndisc_send_rs+0x331/0x6e0
[  377.001580]  addrconf_rs_timer+0x314/0x690
[  377.005843]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.010083]  call_timer_fn+0x272/0x920
[  377.013967]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.018204]  ? process_timeout+0x40/0x40
[  377.022278]  ? mark_held_locks+0xc7/0x130
[  377.026473]  ? _raw_spin_unlock_irq+0x27/0x80
[  377.030977]  ? _raw_spin_unlock_irq+0x27/0x80
[  377.035479]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.039716]  ? lockdep_hardirqs_on+0x296/0x5b0
[  377.044299]  ? trace_hardirqs_on+0xbd/0x310
[  377.048624]  ? kasan_check_read+0x11/0x20
[  377.052772]  ? __run_timers+0x7da/0xc70
[  377.056747]  ? trace_hardirqs_off_caller+0x310/0x310
[  377.061855]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.066102]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.070336]  __run_timers+0x7e5/0xc70
[  377.074153]  ? timer_fixup_init+0x70/0x70
[  377.078332]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  377.083371]  ? zap_class+0x640/0x640
[  377.087086]  ? print_usage_bug+0xc0/0xc0
[  377.091165]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  377.096362]  ? find_held_lock+0x36/0x1c0
[  377.100433]  ? zap_class+0x640/0x640
[  377.104158]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.109713]  ? check_preemption_disabled+0x48/0x280
[  377.114746]  ? __lock_is_held+0xb5/0x140
[  377.118808]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.124344]  ? check_preemption_disabled+0x48/0x280
[  377.129379]  run_timer_softirq+0x52/0xb0
[  377.133440]  ? rcu_read_lock_sched_held+0x14f/0x180
[  377.138459]  __do_softirq+0x308/0xb7e
[  377.142264]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  377.146761]  ? lock_downgrade+0x900/0x900
[  377.150917]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  377.156038]  ? pvclock_read_flags+0x160/0x160
[  377.160540]  ? lapic_next_event+0x5a/0x90
[  377.164691]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.170233]  ? kvm_clock_read+0x18/0x30
[  377.174210]  ? kvm_sched_clock_read+0x9/0x20
[  377.178623]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  377.184286]  ? check_preemption_disabled+0x48/0x280
[  377.189312]  irq_exit+0x17f/0x1c0
[  377.192814]  smp_apic_timer_interrupt+0x1cb/0x760
[  377.197669]  ? smp_reschedule_interrupt+0x109/0x650
[  377.202686]  ? smp_call_function_single_interrupt+0x650/0x650
[  377.208572]  ? interrupt_entry+0xb5/0xc0
[  377.212637]  ? trace_hardirqs_off_caller+0xbb/0x310
[  377.217654]  ? trace_hardirqs_off_caller+0xbb/0x310
[  377.222689]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  377.227532]  ? trace_hardirqs_on_caller+0x310/0x310
[  377.232553]  ? trace_hardirqs_on_caller+0x310/0x310
[  377.237584]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  377.242437]  apic_timer_interrupt+0xf/0x20
[  377.246666]  </IRQ>
[  377.248921] RIP: 0010:dump_stack+0x358/0x39d
[  377.253360] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  377.272267] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  377.279971] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  377.287246] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  377.294511] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  377.301781] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  377.309052] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  377.316337]  ? dump_stack+0x34f/0x39d
[  377.320160]  ? dump_stack_print_info.cold.1+0x20/0x20
[  377.325363]  ? mark_held_locks+0x130/0x130
[  377.329620]  ? mark_held_locks+0x130/0x130
[  377.333863]  dump_header+0x27b/0xf72
[  377.337591]  ? pagefault_out_of_memory+0x197/0x197
[  377.342526]  ? __lock_acquire+0x62f/0x4c20
[  377.346760]  ? percpu_ref_get_many+0x240/0x240
[  377.351344]  ? print_usage_bug+0xc0/0xc0
[  377.355429]  ? zap_class+0x640/0x640
[  377.359146]  ? print_usage_bug+0xc0/0xc0
[  377.363211]  ? print_usage_bug+0xc0/0xc0
[  377.367278]  ? zap_class+0x640/0x640
[  377.370999]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.376550]  ? find_held_lock+0x36/0x1c0
[  377.380622]  ? mark_held_locks+0xc7/0x130
[  377.384788]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  377.389906]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  377.395020]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  377.399607]  ? trace_hardirqs_on+0xbd/0x310
[  377.403933]  ? kasan_check_read+0x11/0x20
[  377.408088]  ? ___ratelimit+0x3b4/0x672
[  377.412067]  ? trace_hardirqs_off_caller+0x310/0x310
[  377.417175]  ? trace_hardirqs_on+0x310/0x310
[  377.421587]  ? lock_downgrade+0x900/0x900
[  377.425759]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  377.430870]  ? ___ratelimit+0x3b9/0x672
[  377.434851]  ? idr_get_free+0xf70/0xf70
[  377.438829]  ? find_held_lock+0x36/0x1c0
[  377.442901]  oom_kill_process.cold.27+0x10/0x903
[  377.447662]  ? zap_class+0x640/0x640
[  377.451385]  ? check_preemption_disabled+0x48/0x280
[  377.456411]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  377.461356]  ? kasan_check_read+0x11/0x20
[  377.465509]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  377.470790]  ? oom_evaluate_task+0x540/0x540
[  377.475207]  ? find_held_lock+0x36/0x1c0
[  377.479282]  ? out_of_memory+0x974/0x1430
[  377.483438]  ? lock_downgrade+0x900/0x900
[  377.487591]  ? check_preemption_disabled+0x48/0x280
[  377.492613]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  377.497543]  ? kasan_check_read+0x11/0x20
[  377.501696]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  377.507002]  ? rcu_softirq_qs+0x20/0x20
[  377.511000]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  377.516549]  ? oom_evaluate_task+0x302/0x540
[  377.520963]  out_of_memory+0xa84/0x1430
[  377.524950]  ? oom_killer_disable+0x3a0/0x3a0
[  377.529450]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  377.534394]  ? __ww_mutex_check_waiters+0x160/0x160
[  377.539430]  __alloc_pages_slowpath+0x232c/0x2de0
[  377.544306]  ? warn_alloc+0x120/0x120
[  377.548110]  ? mark_held_locks+0x130/0x130
[  377.552352]  ? find_get_entry+0xaae/0x1120
[  377.556603]  ? filemap_map_pages+0x1a20/0x1a20
[  377.561197]  ? zap_class+0x640/0x640
[  377.564919]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.570465]  ? check_preemption_disabled+0x48/0x280
[  377.575489]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  377.581039]  ? should_fail+0x22d/0xd01
[  377.584937]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  377.590048]  ? zap_class+0x640/0x640
[  377.593788]  ? __lock_is_held+0xb5/0x140
[  377.597859]  ? mark_held_locks+0x130/0x130
[  377.602102]  ? lock_release+0xa00/0xa00
[  377.606077]  ? perf_trace_sched_process_exec+0x860/0x860
[  377.611530]  ? xa_load+0x2ba/0x460
[  377.615075]  ? lock_downgrade+0x900/0x900
[  377.619252]  ? __might_sleep+0x95/0x190
[  377.623230]  __alloc_pages_nodemask+0xad8/0xea0
[  377.627910]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  377.632933]  ? __page_cache_alloc+0x191/0x5c0
[  377.637429]  ? xa_load+0x2e1/0x460
[  377.640973]  ? xa_clear_mark+0x40/0x40
[  377.644871]  ? zap_class+0x640/0x640
[  377.648625]  ? zap_class+0x640/0x640
[  377.652356]  ? zap_class+0x640/0x640
[  377.656080]  ? __do_page_cache_readahead+0x663/0x810
[  377.661191]  ? find_held_lock+0x36/0x1c0
[  377.665269]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  377.670862]  alloc_pages_current+0x173/0x350
[  377.675284]  __page_cache_alloc+0x38c/0x5c0
[  377.679610]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  377.684542]  ? kasan_check_read+0x11/0x20
[  377.688692]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  377.693978]  ? generic_perform_write+0x6a0/0x6a0
[  377.698746]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  377.704304]  ? check_preemption_disabled+0x48/0x280
[  377.709336]  filemap_fault+0x1595/0x25f0
[  377.713420]  ? __lock_page_or_retry+0xa00/0xa00
[  377.718094]  ? mark_held_locks+0x130/0x130
[  377.722340]  ? filemap_map_pages+0xd6b/0x1a20
[  377.726842]  ? lock_downgrade+0x900/0x900
[  377.730992]  ? check_preemption_disabled+0x48/0x280
[  377.736031]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  377.740966]  ? kasan_check_read+0x11/0x20
[  377.745114]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  377.750398]  ? rcu_softirq_qs+0x20/0x20
[  377.754394]  ? filemap_map_pages+0xd92/0x1a20
[  377.758904]  ? find_get_entries_tag+0x1400/0x1400
[  377.763765]  ? debug_object_destroy+0x2b0/0x2b0
[  377.768439]  ? lock_pi_update_atomic+0x150/0x150
[  377.773211]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.778780]  ? lock_acquire+0x1ed/0x520
[  377.782783]  ? ext4_filemap_fault+0x7a/0xad
[  377.787113]  ? lock_release+0xa00/0xa00
[  377.791085]  ? perf_trace_sched_process_exec+0x860/0x860
[  377.796538]  ? print_usage_bug+0xc0/0xc0
[  377.800613]  ? print_usage_bug+0xc0/0xc0
[  377.804689]  ? down_read+0x8d/0x120
[  377.808317]  ? ext4_filemap_fault+0x7a/0xad
[  377.812644]  ? __down_interruptible+0x700/0x700
[  377.817327]  ext4_filemap_fault+0x82/0xad
[  377.821481]  __do_fault+0x100/0x6b0
[  377.825109]  ? find_held_lock+0x36/0x1c0
[  377.829174]  ? pmd_devmap_trans_unstable+0x220/0x220
[  377.834284]  ? mark_held_locks+0x130/0x130
[  377.838521]  ? mark_held_locks+0x130/0x130
[  377.842763]  ? debug_smp_processor_id+0x1c/0x20
[  377.847434]  ? perf_trace_lock+0x14d/0x7a0
[  377.851676]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  377.857222]  __handle_mm_fault+0x3ea0/0x5be0
[  377.861643]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  377.866505]  ? lock_is_held_type+0x210/0x210
[  377.870919]  ? __switch_to_asm+0x34/0x70
[  377.875021]  ? __switch_to_asm+0x34/0x70
[  377.879100]  ? zap_class+0x640/0x640
[  377.882814]  ? zap_class+0x640/0x640
[  377.886531]  ? __x64_sys_futex+0x53e/0x6a0
[  377.890773]  ? find_held_lock+0x36/0x1c0
[  377.894845]  ? handle_mm_fault+0x42a/0xc70
[  377.899087]  ? lock_downgrade+0x900/0x900
[  377.903247]  ? check_preemption_disabled+0x48/0x280
[  377.908274]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  377.913210]  ? kasan_check_read+0x11/0x20
[  377.917358]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  377.922639]  ? rcu_softirq_qs+0x20/0x20
[  377.926618]  ? trace_hardirqs_off_caller+0x310/0x310
[  377.931730]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  377.937273]  ? check_preemption_disabled+0x48/0x280
[  377.942316]  handle_mm_fault+0x54f/0xc70
[  377.946393]  ? __handle_mm_fault+0x5be0/0x5be0
[  377.950981]  ? find_vma+0x34/0x190
[  377.954535]  __do_page_fault+0x5e8/0xe60
[  377.958596]  ? trace_hardirqs_off+0xb8/0x310
[  377.963023]  do_page_fault+0xf2/0x7e0
[  377.966847]  ? vmalloc_sync_all+0x30/0x30
[  377.971018]  ? error_entry+0x70/0xd0
[  377.974737]  ? trace_hardirqs_off_caller+0xbb/0x310
[  377.979787]  ? trace_hardirqs_on_caller+0xc0/0x310
[  377.984721]  ? syscall_return_slowpath+0x5e0/0x5e0
[  377.989656]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  377.994508]  ? trace_hardirqs_on_caller+0x310/0x310
[  377.999523]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  378.004984]  ? prepare_exit_to_usermode+0x291/0x3b0
[  378.010042]  ? page_fault+0x8/0x30
[  378.013603]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  378.018478]  ? page_fault+0x8/0x30
[  378.022029]  page_fault+0x1e/0x30
[  378.025480] RIP: 0033:0x45ddf3
[  378.028689] Code: Bad RIP value.
[  378.032050] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  378.037413] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  378.044681] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  378.051949] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  378.059230] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  378.066533] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  378.073842] warn_alloc_show_mem: 1 callbacks suppressed
[  378.073854] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  378.073856] Mem-Info:
[  378.073887] active_anon:45985 inactive_anon:296 isolated_anon:0
[  378.073887]  active_file:15 inactive_file:8 isolated_file:0
[  378.073887]  unevictable:0 dirty:0 writeback:0 unstable:0
[  378.073887]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  378.073887]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  378.073887]  free:13771 free_pcp:249 free_cma:0
[  378.079248] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  378.086615] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  378.089023] Call Trace:
[  378.121815] 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
[  378.131168]  <IRQ>
[  378.158836] lowmem_reserve[]: 0 2818 6321 6321
[  378.161430]  dump_stack+0x244/0x39d
[  378.187539] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  378.189707]  ? dump_stack_print_info.cold.1+0x20/0x20
[  378.194253] lowmem_reserve[]: 0 0 3503 3503
[  378.197898]  warn_alloc.cold.116+0xb7/0x1bd
[  378.225373] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  378.230561]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  378.234847] lowmem_reserve[]: 0 0 0 0
[  378.239186]  ? lock_downgrade+0x900/0x900
[  378.268147] 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
[  378.273011]  ? trace_hardirqs_off+0xb8/0x310
[  378.276791] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  378.280952]  ? trace_hardirqs_off+0xb8/0x310
[  378.294447] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  378.298857]  __alloc_pages_slowpath+0x2651/0x2de0
[  378.314041] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  378.318466]  ? warn_alloc+0x120/0x120
[  378.333859] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  378.338696]  ? print_usage_bug+0xc0/0xc0
[  378.347508] 376 total pagecache pages
[  378.351330]  ? warn_alloc+0x120/0x120
[  378.359906] 0 pages in swap cache
[  378.363955]  ? warn_alloc+0x120/0x120
[  378.367753] Swap cache stats: add 0, delete 0, find 0/0
[  378.371547]  ? print_usage_bug+0xc0/0xc0
[  378.374973] Free swap  = 0kB
[  378.378765]  ? kvm_clock_read+0x18/0x30
[  378.384111] Total swap = 0kB
[  378.388164]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  378.391162] 1965979 pages RAM
[  378.395135]  ? print_usage_bug+0xc0/0xc0
[  378.398133] 0 pages HighMem/MovableOnly
[  378.403174]  ? __lock_acquire+0x62f/0x4c20
[  378.406257] 342854 pages reserved
[  378.410316]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  378.414267] 0 pages cma reserved
[  378.418501]  ? should_fail+0x22d/0xd01
[  378.422018] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  378.427460]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  378.427481]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  378.430955] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  378.434737]  ? __lock_acquire+0x62f/0x4c20
[  378.441242] syz-fuzzer cpuset=/ mems_allowed=0
[  378.446518]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  378.475723]  ? __lock_acquire+0x62f/0x4c20
[  378.479995]  ? should_fail+0x22d/0xd01
[  378.483897]  ? rcu_irq_exit+0x1a2/0x390
[  378.487893]  ? mark_held_locks+0x130/0x130
[  378.492140]  ? mark_held_locks+0x130/0x130
[  378.496385]  ? mark_held_locks+0xc7/0x130
[  378.500537]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  378.505561]  ? zap_class+0x640/0x640
[  378.509290]  ? print_usage_bug+0xc0/0xc0
[  378.513360]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.518913]  ? check_preemption_disabled+0x48/0x280
[  378.523954]  ? __lock_is_held+0xb5/0x140
[  378.528033]  __alloc_pages_nodemask+0xad8/0xea0
[  378.532712]  ? zap_class+0x640/0x640
[  378.536435]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  378.541468]  ? find_held_lock+0x36/0x1c0
[  378.545545]  ? ____cache_alloc_node+0x1c7/0x1e0
[  378.550225]  ? lock_downgrade+0x900/0x900
[  378.554384]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.559934]  cache_grow_begin+0xa5/0x8c0
[  378.564015]  ? do_raw_spin_unlock+0xa7/0x330
[  378.568441]  fallback_alloc+0x204/0x2e0
[  378.572428]  ____cache_alloc_node+0x1c7/0x1e0
[  378.576936]  kmem_cache_alloc_node+0xe3/0x730
[  378.581443]  ? ipv6_get_ifaddr+0x42e/0x620
[  378.585693]  __alloc_skb+0x119/0x770
[  378.589408]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  378.594694]  ? netdev_alloc_frag+0x1f0/0x1f0
[  378.599108]  ? lock_downgrade+0x900/0x900
[  378.603268]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.608813]  ? refcount_sub_and_test_checked+0x203/0x310
[  378.614273]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  378.619735]  ? addrconf_rs_timer+0x690/0x690
[  378.624162]  ndisc_alloc_skb+0x144/0x340
[  378.628239]  ndisc_send_rs+0x331/0x6e0
[  378.632140]  addrconf_rs_timer+0x314/0x690
[  378.636391]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  378.640639]  call_timer_fn+0x272/0x920
[  378.644533]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  378.648774]  ? process_timeout+0x40/0x40
[  378.652847]  ? __run_timers+0x7da/0xc70
[  378.656831]  ? _raw_spin_unlock_irq+0x27/0x80
[  378.661331]  ? _raw_spin_unlock_irq+0x27/0x80
[  378.665832]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  378.670076]  ? lockdep_hardirqs_on+0x296/0x5b0
[  378.674665]  ? trace_hardirqs_on+0xbd/0x310
[  378.678990]  ? kasan_check_read+0x11/0x20
[  378.683147]  ? __run_timers+0x7da/0xc70
[  378.687129]  ? trace_hardirqs_off_caller+0x310/0x310
[  378.692248]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  378.696497]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  378.700735]  __run_timers+0x7e5/0xc70
[  378.704550]  ? timer_fixup_init+0x70/0x70
[  378.708704]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  378.713723]  ? zap_class+0x640/0x640
[  378.717456]  ? enqueue_hrtimer+0x1a5/0x560
[  378.721695]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  378.726902]  ? find_held_lock+0x36/0x1c0
[  378.730974]  ? zap_class+0x640/0x640
[  378.734702]  ? pvclock_read_flags+0x160/0x160
[  378.739208]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.744752]  ? check_preemption_disabled+0x48/0x280
[  378.749783]  ? __lock_is_held+0xb5/0x140
[  378.753856]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.759403]  ? check_preemption_disabled+0x48/0x280
[  378.764437]  run_timer_softirq+0x52/0xb0
[  378.768503]  ? rcu_read_lock_sched_held+0x14f/0x180
[  378.773525]  __do_softirq+0x308/0xb7e
[  378.777337]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  378.781832]  ? lock_downgrade+0x900/0x900
[  378.785990]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  378.791119]  ? pvclock_read_flags+0x160/0x160
[  378.795621]  ? lapic_next_event+0x5a/0x90
[  378.799780]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.805372]  ? kvm_clock_read+0x18/0x30
[  378.809355]  ? kvm_sched_clock_read+0x9/0x20
[  378.813772]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.819322]  ? check_preemption_disabled+0x48/0x280
[  378.824356]  irq_exit+0x17f/0x1c0
[  378.827818]  smp_apic_timer_interrupt+0x1cb/0x760
[  378.832665]  ? smp_reschedule_interrupt+0x109/0x650
[  378.837688]  ? smp_call_function_single_interrupt+0x650/0x650
[  378.843579]  ? interrupt_entry+0xb5/0xc0
[  378.847646]  ? trace_hardirqs_off_caller+0xbb/0x310
[  378.852665]  ? trace_hardirqs_off_caller+0xbb/0x310
[  378.857690]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  378.862549]  ? trace_hardirqs_on_caller+0x310/0x310
[  378.867572]  ? trace_hardirqs_on_caller+0x310/0x310
[  378.872592]  ? task_prio+0x50/0x50
[  378.876156]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.881701]  ? check_preemption_disabled+0x48/0x280
[  378.886724]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  378.891612]  apic_timer_interrupt+0xf/0x20
[  378.895846]  </IRQ>
[  378.898093] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  378.903035] 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 42 f3
[  378.921949] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  378.929671] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  378.936950] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  378.944238] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  378.951516] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  378.958794] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  378.966120]  skb_clone+0x1bb/0x500
[  378.969673]  ? skb_split+0x11e0/0x11e0
[  378.973568]  ? check_preemption_disabled+0x48/0x280
[  378.978603]  ? __this_cpu_preempt_check+0x1c/0x20
[  378.983448]  ? __bpf_redirect+0x55b/0xb60
[  378.987603]  ? __switch_to_asm+0x34/0x70
[  378.991664]  ? __switch_to_asm+0x40/0x70
[  378.995739]  bpf_clone_redirect+0xb9/0x490
[  378.999989]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  379.005043]  ? __sched_text_start+0x8/0x8
[  379.009223]  ? find_held_lock+0x36/0x1c0
[  379.013294]  ? lock_acquire+0x1ed/0x520
[  379.017291]  ? bpf_test_run+0x3cb/0x780
[  379.021299]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.026858]  ? check_preemption_disabled+0x48/0x280
[  379.031893]  ? kasan_check_read+0x11/0x20
[  379.036051]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  379.041334]  ? rcu_softirq_qs+0x20/0x20
[  379.045314]  ? preempt_schedule+0x4d/0x60
[  379.049464]  ? ___preempt_schedule+0x16/0x18
[  379.053884]  ? bpf_test_run+0x25d/0x780
[  379.057880]  ? netlink_diag_dump+0x2a0/0x2a0
[  379.062300]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  379.067850]  ? bpf_test_init.isra.10+0x70/0x100
[  379.072535]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  379.077306]  ? bpf_test_finish.isra.9+0x260/0x260
[  379.082158]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  379.087702]  ? fput+0x130/0x1a0
[  379.090991]  ? __bpf_prog_get+0x9b/0x290
[  379.095071]  ? bpf_test_finish.isra.9+0x260/0x260
[  379.099922]  ? bpf_prog_test_run+0x130/0x1a0
[  379.104338]  ? __x64_sys_bpf+0x3db/0x520
[  379.108407]  ? bpf_prog_get+0x20/0x20
[  379.112237]  ? do_syscall_64+0x1b9/0x820
[  379.116301]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  379.121672]  ? syscall_return_slowpath+0x5e0/0x5e0
[  379.126606]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  379.131457]  ? trace_hardirqs_on_caller+0x310/0x310
[  379.136481]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  379.141507]  ? prepare_exit_to_usermode+0x291/0x3b0
[  379.146539]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  379.151400]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  379.156788] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  379.156865] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  379.163805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  379.163810] Call Trace:
[  379.163817]  <IRQ>
[  379.163837]  dump_stack+0x244/0x39d
[  379.163855]  ? dump_stack_print_info.cold.1+0x20/0x20
[  379.163880]  warn_alloc.cold.116+0xb7/0x1bd
[  379.170470] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  379.180233]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  379.182795] syz-executor0 cpuset=syz0 mems_allowed=0
[  379.184941]  ? lock_downgrade+0x900/0x900
[  379.222580]  ? trace_hardirqs_off+0xb8/0x310
[  379.227000]  ? trace_hardirqs_off+0xb8/0x310
[  379.231432]  __alloc_pages_slowpath+0x2651/0x2de0
[  379.236308]  ? warn_alloc+0x120/0x120
[  379.240121]  ? print_usage_bug+0xc0/0xc0
[  379.244191]  ? warn_alloc+0x120/0x120
[  379.248002]  ? warn_alloc+0x120/0x120
[  379.251820]  ? print_usage_bug+0xc0/0xc0
[  379.255886]  ? kvm_clock_read+0x18/0x30
[  379.259868]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  379.264890]  ? print_usage_bug+0xc0/0xc0
[  379.268955]  ? __lock_acquire+0x62f/0x4c20
[  379.273202]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  379.278750]  ? should_fail+0x22d/0xd01
[  379.282671]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  379.287966]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  379.293091]  ? __lock_acquire+0x62f/0x4c20
[  379.297331]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  379.302439]  ? __lock_acquire+0x62f/0x4c20
[  379.306677]  ? should_fail+0x22d/0xd01
[  379.310583]  ? rcu_irq_exit+0x1a2/0x390
[  379.314569]  ? mark_held_locks+0x130/0x130
[  379.318816]  ? mark_held_locks+0x130/0x130
[  379.323057]  ? mark_held_locks+0xc7/0x130
[  379.327206]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  379.332228]  ? zap_class+0x640/0x640
[  379.336014]  ? print_usage_bug+0xc0/0xc0
[  379.340117]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.345675]  ? check_preemption_disabled+0x48/0x280
[  379.350708]  ? __lock_is_held+0xb5/0x140
[  379.354782]  __alloc_pages_nodemask+0xad8/0xea0
[  379.359457]  ? zap_class+0x640/0x640
[  379.363181]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  379.368214]  ? find_held_lock+0x36/0x1c0
[  379.372288]  ? ____cache_alloc_node+0x1c7/0x1e0
[  379.376962]  ? lock_downgrade+0x900/0x900
[  379.381124]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.386668]  cache_grow_begin+0xa5/0x8c0
[  379.390736]  ? do_raw_spin_unlock+0xa7/0x330
[  379.395158]  fallback_alloc+0x204/0x2e0
[  379.399139]  ____cache_alloc_node+0x1c7/0x1e0
[  379.403641]  kmem_cache_alloc_node+0xe3/0x730
[  379.408140]  ? ipv6_get_ifaddr+0x42e/0x620
[  379.412391]  __alloc_skb+0x119/0x770
[  379.416107]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  379.421413]  ? netdev_alloc_frag+0x1f0/0x1f0
[  379.425832]  ? lock_downgrade+0x900/0x900
[  379.429991]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.435538]  ? refcount_sub_and_test_checked+0x203/0x310
[  379.441031]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  379.446486]  ? addrconf_rs_timer+0x690/0x690
[  379.450908]  ndisc_alloc_skb+0x144/0x340
[  379.454977]  ndisc_send_rs+0x331/0x6e0
[  379.458881]  addrconf_rs_timer+0x314/0x690
[  379.463132]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  379.467385]  call_timer_fn+0x272/0x920
[  379.471279]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  379.475516]  ? process_timeout+0x40/0x40
[  379.479593]  ? mark_held_locks+0xc7/0x130
[  379.483762]  ? _raw_spin_unlock_irq+0x27/0x80
[  379.488286]  ? _raw_spin_unlock_irq+0x27/0x80
[  379.492781]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  379.497083]  ? lockdep_hardirqs_on+0x296/0x5b0
[  379.501669]  ? trace_hardirqs_on+0xbd/0x310
[  379.506016]  ? kasan_check_read+0x11/0x20
[  379.510165]  ? __run_timers+0x7da/0xc70
[  379.514166]  ? trace_hardirqs_off_caller+0x310/0x310
[  379.519276]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  379.523518]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  379.527751]  __run_timers+0x7e5/0xc70
[  379.531567]  ? timer_fixup_init+0x70/0x70
[  379.535724]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  379.540742]  ? zap_class+0x640/0x640
[  379.544462]  ? print_usage_bug+0xc0/0xc0
[  379.548528]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  379.553727]  ? find_held_lock+0x36/0x1c0
[  379.557808]  ? zap_class+0x640/0x640
[  379.561558]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.567099]  ? check_preemption_disabled+0x48/0x280
[  379.572161]  ? __lock_is_held+0xb5/0x140
[  379.576226]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.581781]  ? check_preemption_disabled+0x48/0x280
[  379.586831]  run_timer_softirq+0x52/0xb0
[  379.590926]  ? rcu_read_lock_sched_held+0x14f/0x180
[  379.595945]  __do_softirq+0x308/0xb7e
[  379.599750]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  379.604263]  ? lock_downgrade+0x900/0x900
[  379.608421]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  379.613533]  ? pvclock_read_flags+0x160/0x160
[  379.618051]  ? lapic_next_event+0x5a/0x90
[  379.622209]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.627773]  ? kvm_clock_read+0x18/0x30
[  379.631796]  ? kvm_sched_clock_read+0x9/0x20
[  379.636226]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  379.641769]  ? check_preemption_disabled+0x48/0x280
[  379.646793]  irq_exit+0x17f/0x1c0
[  379.650261]  smp_apic_timer_interrupt+0x1cb/0x760
[  379.655103]  ? smp_reschedule_interrupt+0x109/0x650
[  379.660121]  ? smp_call_function_single_interrupt+0x650/0x650
[  379.666017]  ? interrupt_entry+0xb5/0xc0
[  379.670097]  ? trace_hardirqs_off_caller+0xbb/0x310
[  379.675116]  ? trace_hardirqs_off_caller+0xbb/0x310
[  379.680135]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  379.684978]  ? trace_hardirqs_on_caller+0x310/0x310
[  379.690001]  ? trace_hardirqs_on_caller+0x310/0x310
[  379.695047]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  379.699904]  apic_timer_interrupt+0xf/0x20
[  379.704137]  </IRQ>
[  379.706385] RIP: 0010:dump_stack+0x358/0x39d
[  379.710794] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  379.729707] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  379.737434] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  379.744703] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  379.751976] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  379.759257] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  379.766533] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  379.773829]  ? dump_stack+0x34f/0x39d
[  379.777659]  ? dump_stack_print_info.cold.1+0x20/0x20
[  379.782851]  ? mark_held_locks+0x130/0x130
[  379.787102]  ? mark_held_locks+0x130/0x130
[  379.791347]  dump_header+0x27b/0xf72
[  379.795082]  ? pagefault_out_of_memory+0x197/0x197
[  379.800029]  ? __lock_acquire+0x62f/0x4c20
[  379.804265]  ? percpu_ref_get_many+0x240/0x240
[  379.808849]  ? print_usage_bug+0xc0/0xc0
[  379.812928]  ? zap_class+0x640/0x640
[  379.816668]  ? print_usage_bug+0xc0/0xc0
[  379.820732]  ? print_usage_bug+0xc0/0xc0
[  379.824795]  ? zap_class+0x640/0x640
[  379.828514]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.834062]  ? find_held_lock+0x36/0x1c0
[  379.838139]  ? mark_held_locks+0xc7/0x130
[  379.842294]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  379.847402]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  379.852510]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  379.857099]  ? trace_hardirqs_on+0xbd/0x310
[  379.861445]  ? kasan_check_read+0x11/0x20
[  379.865592]  ? ___ratelimit+0x3b4/0x672
[  379.869603]  ? trace_hardirqs_off_caller+0x310/0x310
[  379.874724]  ? trace_hardirqs_on+0x310/0x310
[  379.879165]  ? lock_downgrade+0x900/0x900
[  379.883325]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  379.888442]  ? ___ratelimit+0x3b9/0x672
[  379.892419]  ? idr_get_free+0xf70/0xf70
[  379.896398]  ? find_held_lock+0x36/0x1c0
[  379.900486]  oom_kill_process.cold.27+0x10/0x903
[  379.905262]  ? zap_class+0x640/0x640
[  379.908993]  ? check_preemption_disabled+0x48/0x280
[  379.914057]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  379.918991]  ? kasan_check_read+0x11/0x20
[  379.923195]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  379.928489]  ? oom_evaluate_task+0x540/0x540
[  379.932916]  ? find_held_lock+0x36/0x1c0
[  379.936985]  ? out_of_memory+0x974/0x1430
[  379.941144]  ? lock_downgrade+0x900/0x900
[  379.945299]  ? check_preemption_disabled+0x48/0x280
[  379.950322]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  379.955253]  ? kasan_check_read+0x11/0x20
[  379.959407]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  379.964684]  ? rcu_softirq_qs+0x20/0x20
[  379.968664]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  379.974209]  ? oom_evaluate_task+0x302/0x540
[  379.978620]  out_of_memory+0xa84/0x1430
[  379.982636]  ? oom_killer_disable+0x3a0/0x3a0
[  379.987138]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  379.992096]  ? __ww_mutex_check_waiters+0x160/0x160
[  379.997154]  __alloc_pages_slowpath+0x232c/0x2de0
[  380.002068]  ? warn_alloc+0x120/0x120
[  380.005870]  ? mark_held_locks+0x130/0x130
[  380.010116]  ? find_get_entry+0xaae/0x1120
[  380.014387]  ? filemap_map_pages+0x1a20/0x1a20
[  380.018978]  ? zap_class+0x640/0x640
[  380.022731]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.028302]  ? check_preemption_disabled+0x48/0x280
[  380.033326]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.038862]  ? should_fail+0x22d/0xd01
[  380.042758]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  380.047869]  ? zap_class+0x640/0x640
[  380.051610]  ? __lock_is_held+0xb5/0x140
[  380.055681]  ? mark_held_locks+0x130/0x130
[  380.059924]  ? lock_release+0xa00/0xa00
[  380.063931]  ? perf_trace_sched_process_exec+0x860/0x860
[  380.069384]  ? xa_load+0x2ba/0x460
[  380.072931]  ? lock_downgrade+0x900/0x900
[  380.077085]  ? __might_sleep+0x95/0x190
[  380.081066]  __alloc_pages_nodemask+0xad8/0xea0
[  380.085787]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  380.090806]  ? __page_cache_alloc+0x191/0x5c0
[  380.095303]  ? xa_load+0x2e1/0x460
[  380.098846]  ? xa_clear_mark+0x40/0x40
[  380.102743]  ? zap_class+0x640/0x640
[  380.106464]  ? zap_class+0x640/0x640
[  380.110178]  ? zap_class+0x640/0x640
[  380.113895]  ? __do_page_cache_readahead+0x663/0x810
[  380.119029]  ? find_held_lock+0x36/0x1c0
[  380.123098]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  380.128649]  alloc_pages_current+0x173/0x350
[  380.133070]  __page_cache_alloc+0x38c/0x5c0
[  380.137394]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  380.142334]  ? kasan_check_read+0x11/0x20
[  380.146488]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  380.151773]  ? generic_perform_write+0x6a0/0x6a0
[  380.156542]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.162085]  ? check_preemption_disabled+0x48/0x280
[  380.167116]  filemap_fault+0x1595/0x25f0
[  380.171192]  ? __lock_page_or_retry+0xa00/0xa00
[  380.175884]  ? mark_held_locks+0x130/0x130
[  380.180134]  ? filemap_map_pages+0xd6b/0x1a20
[  380.184648]  ? lock_downgrade+0x900/0x900
[  380.188797]  ? check_preemption_disabled+0x48/0x280
[  380.193837]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  380.198767]  ? kasan_check_read+0x11/0x20
[  380.202918]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  380.208197]  ? rcu_softirq_qs+0x20/0x20
[  380.212188]  ? filemap_map_pages+0xd92/0x1a20
[  380.216699]  ? find_get_entries_tag+0x1400/0x1400
[  380.221548]  ? debug_object_destroy+0x2b0/0x2b0
[  380.226237]  ? lock_pi_update_atomic+0x150/0x150
[  380.231031]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.236603]  ? lock_acquire+0x1ed/0x520
[  380.240577]  ? ext4_filemap_fault+0x7a/0xad
[  380.244907]  ? lock_release+0xa00/0xa00
[  380.248885]  ? perf_trace_sched_process_exec+0x860/0x860
[  380.254343]  ? print_usage_bug+0xc0/0xc0
[  380.258417]  ? print_usage_bug+0xc0/0xc0
[  380.262492]  ? down_read+0x8d/0x120
[  380.266119]  ? ext4_filemap_fault+0x7a/0xad
[  380.270448]  ? __down_interruptible+0x700/0x700
[  380.275134]  ext4_filemap_fault+0x82/0xad
[  380.279291]  __do_fault+0x100/0x6b0
[  380.282920]  ? find_held_lock+0x36/0x1c0
[  380.286985]  ? pmd_devmap_trans_unstable+0x220/0x220
[  380.292131]  ? mark_held_locks+0x130/0x130
[  380.296385]  ? mark_held_locks+0x130/0x130
[  380.300628]  ? debug_smp_processor_id+0x1c/0x20
[  380.305302]  ? perf_trace_lock+0x14d/0x7a0
[  380.309547]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.315234]  __handle_mm_fault+0x3ea0/0x5be0
[  380.319656]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  380.324502]  ? lock_is_held_type+0x210/0x210
[  380.328923]  ? __switch_to_asm+0x34/0x70
[  380.332983]  ? __switch_to_asm+0x34/0x70
[  380.337070]  ? zap_class+0x640/0x640
[  380.340785]  ? zap_class+0x640/0x640
[  380.344500]  ? __x64_sys_futex+0x53e/0x6a0
[  380.348746]  ? find_held_lock+0x36/0x1c0
[  380.352820]  ? handle_mm_fault+0x42a/0xc70
[  380.357059]  ? lock_downgrade+0x900/0x900
[  380.361211]  ? check_preemption_disabled+0x48/0x280
[  380.366238]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  380.371173]  ? kasan_check_read+0x11/0x20
[  380.375327]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  380.380609]  ? rcu_softirq_qs+0x20/0x20
[  380.384584]  ? trace_hardirqs_off_caller+0x310/0x310
[  380.389697]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.395246]  ? check_preemption_disabled+0x48/0x280
[  380.400275]  handle_mm_fault+0x54f/0xc70
[  380.404343]  ? __handle_mm_fault+0x5be0/0x5be0
[  380.408939]  ? find_vma+0x34/0x190
[  380.412486]  __do_page_fault+0x5e8/0xe60
[  380.416550]  ? trace_hardirqs_off+0xb8/0x310
[  380.420971]  do_page_fault+0xf2/0x7e0
[  380.424773]  ? vmalloc_sync_all+0x30/0x30
[  380.428927]  ? error_entry+0x70/0xd0
[  380.432646]  ? trace_hardirqs_off_caller+0xbb/0x310
[  380.437663]  ? trace_hardirqs_on_caller+0xc0/0x310
[  380.442596]  ? syscall_return_slowpath+0x5e0/0x5e0
[  380.447528]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  380.452383]  ? trace_hardirqs_on_caller+0x310/0x310
[  380.457401]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  380.462858]  ? prepare_exit_to_usermode+0x291/0x3b0
[  380.467877]  ? page_fault+0x8/0x30
[  380.471427]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  380.476307]  ? page_fault+0x8/0x30
[  380.479851]  page_fault+0x1e/0x30
[  380.483302] RIP: 0033:0x45ddf3
[  380.486505] Code: Bad RIP value.
[  380.489865] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  380.495227] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  380.502500] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  380.509772] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  380.517045] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  380.524337] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  380.531636] warn_alloc_show_mem: 1 callbacks suppressed
[  380.531648] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  380.531650] Mem-Info:
[  380.531682] active_anon:45985 inactive_anon:296 isolated_anon:0
[  380.531682]  active_file:15 inactive_file:8 isolated_file:0
[  380.531682]  unevictable:0 dirty:0 writeback:0 unstable:0
[  380.531682]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  380.531682]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  380.531682]  free:13771 free_pcp:249 free_cma:0
[  380.537031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  380.544400] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  380.546802] Call Trace:
[  380.579611] 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
[  380.588971]  <IRQ>
[  380.616659] lowmem_reserve[]: 0 2818 6321 6321
[  380.619265]  dump_stack+0x244/0x39d
[  380.645354] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  380.647518]  ? dump_stack_print_info.cold.1+0x20/0x20
[  380.652059] lowmem_reserve[]: 0 0 3503 3503
[  380.655709]  warn_alloc.cold.116+0xb7/0x1bd
[  380.683183] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  380.688378]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  380.692678] lowmem_reserve[]: 0 0 0 0
[  380.697004]  ? lock_downgrade+0x900/0x900
[  380.725965] 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
[  380.730849]  ? trace_hardirqs_off+0xb8/0x310
[  380.734618] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  380.738779]  ? trace_hardirqs_off+0xb8/0x310
[  380.752282] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  380.756706]  __alloc_pages_slowpath+0x2651/0x2de0
[  380.771775] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  380.776207]  ? warn_alloc+0x120/0x120
[  380.791608] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  380.796453]  ? print_usage_bug+0xc0/0xc0
[  380.805265] 376 total pagecache pages
[  380.809065]  ? warn_alloc+0x120/0x120
[  380.817618] 0 pages in swap cache
[  380.821679]  ? warn_alloc+0x120/0x120
[  380.825446] Swap cache stats: add 0, delete 0, find 0/0
[  380.825455] Free swap  = 0kB
[  380.829252]  ? print_usage_bug+0xc0/0xc0
[  380.832677] Total swap = 0kB
[  380.836472]  ? kvm_clock_read+0x18/0x30
[  380.841807] 1965979 pages RAM
[  380.844824]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  380.848847] 0 pages HighMem/MovableOnly
[  380.848856] 342854 pages reserved
[  380.851885]  ? print_usage_bug+0xc0/0xc0
[  380.855822] 0 pages cma reserved
[  380.858923]  ? __lock_acquire+0x62f/0x4c20
[  380.863969] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  380.867926]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.867943]  ? should_fail+0x22d/0xd01
[  380.871477] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  380.875451]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  380.878791] syz-fuzzer cpuset=/ mems_allowed=0
[  380.883045]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  380.924194]  ? __lock_acquire+0x62f/0x4c20
[  380.928459]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  380.933567]  ? __lock_acquire+0x62f/0x4c20
[  380.937822]  ? should_fail+0x22d/0xd01
[  380.941708]  ? rcu_irq_exit+0x1a2/0x390
[  380.945696]  ? mark_held_locks+0x130/0x130
[  380.949939]  ? mark_held_locks+0x130/0x130
[  380.954200]  ? mark_held_locks+0xc7/0x130
[  380.958356]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  380.963382]  ? zap_class+0x640/0x640
[  380.967104]  ? print_usage_bug+0xc0/0xc0
[  380.971180]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.976723]  ? check_preemption_disabled+0x48/0x280
[  380.981777]  ? __lock_is_held+0xb5/0x140
[  380.985879]  __alloc_pages_nodemask+0xad8/0xea0
[  380.990553]  ? zap_class+0x640/0x640
[  380.994289]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  380.999324]  ? find_held_lock+0x36/0x1c0
[  381.003419]  ? ____cache_alloc_node+0x1c7/0x1e0
[  381.008107]  ? lock_downgrade+0x900/0x900
[  381.012270]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.017818]  cache_grow_begin+0xa5/0x8c0
[  381.021889]  ? do_raw_spin_unlock+0xa7/0x330
[  381.026310]  fallback_alloc+0x204/0x2e0
[  381.030294]  ____cache_alloc_node+0x1c7/0x1e0
[  381.034815]  kmem_cache_alloc_node+0xe3/0x730
[  381.039318]  ? ipv6_get_ifaddr+0x42e/0x620
[  381.043571]  __alloc_skb+0x119/0x770
[  381.047304]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  381.052604]  ? netdev_alloc_frag+0x1f0/0x1f0
[  381.057023]  ? lock_downgrade+0x900/0x900
[  381.061213]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.066756]  ? refcount_sub_and_test_checked+0x203/0x310
[  381.072227]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  381.077686]  ? addrconf_rs_timer+0x690/0x690
[  381.082108]  ndisc_alloc_skb+0x144/0x340
[  381.086178]  ndisc_send_rs+0x331/0x6e0
[  381.090082]  addrconf_rs_timer+0x314/0x690
[  381.094328]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.098575]  call_timer_fn+0x272/0x920
[  381.102469]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.106711]  ? process_timeout+0x40/0x40
[  381.110785]  ? __run_timers+0x7da/0xc70
[  381.114766]  ? _raw_spin_unlock_irq+0x27/0x80
[  381.119264]  ? _raw_spin_unlock_irq+0x27/0x80
[  381.123762]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.128003]  ? lockdep_hardirqs_on+0x296/0x5b0
[  381.132603]  ? trace_hardirqs_on+0xbd/0x310
[  381.136930]  ? kasan_check_read+0x11/0x20
[  381.141080]  ? __run_timers+0x7da/0xc70
[  381.145070]  ? trace_hardirqs_off_caller+0x310/0x310
[  381.150185]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.154430]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.158667]  __run_timers+0x7e5/0xc70
[  381.162482]  ? timer_fixup_init+0x70/0x70
[  381.166638]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  381.171663]  ? zap_class+0x640/0x640
[  381.175403]  ? enqueue_hrtimer+0x1a5/0x560
[  381.179857]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  381.185080]  ? find_held_lock+0x36/0x1c0
[  381.189148]  ? zap_class+0x640/0x640
[  381.192877]  ? pvclock_read_flags+0x160/0x160
[  381.197378]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.202936]  ? check_preemption_disabled+0x48/0x280
[  381.207964]  ? __lock_is_held+0xb5/0x140
[  381.212045]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.217602]  ? check_preemption_disabled+0x48/0x280
[  381.222627]  run_timer_softirq+0x52/0xb0
[  381.226697]  ? rcu_read_lock_sched_held+0x14f/0x180
[  381.231719]  __do_softirq+0x308/0xb7e
[  381.235528]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  381.240034]  ? lock_downgrade+0x900/0x900
[  381.244193]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  381.249313]  ? pvclock_read_flags+0x160/0x160
[  381.253816]  ? lapic_next_event+0x5a/0x90
[  381.258002]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.263563]  ? kvm_clock_read+0x18/0x30
[  381.267541]  ? kvm_sched_clock_read+0x9/0x20
[  381.271955]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.277501]  ? check_preemption_disabled+0x48/0x280
[  381.282533]  irq_exit+0x17f/0x1c0
[  381.285991]  smp_apic_timer_interrupt+0x1cb/0x760
[  381.290836]  ? smp_reschedule_interrupt+0x109/0x650
[  381.295851]  ? smp_call_function_single_interrupt+0x650/0x650
[  381.301754]  ? interrupt_entry+0xb5/0xc0
[  381.305821]  ? trace_hardirqs_off_caller+0xbb/0x310
[  381.310866]  ? trace_hardirqs_off_caller+0xbb/0x310
[  381.315905]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  381.320765]  ? trace_hardirqs_on_caller+0x310/0x310
[  381.325808]  ? trace_hardirqs_on_caller+0x310/0x310
[  381.330823]  ? task_prio+0x50/0x50
[  381.334368]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.339906]  ? check_preemption_disabled+0x48/0x280
[  381.344961]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  381.349815]  apic_timer_interrupt+0xf/0x20
[  381.354048]  </IRQ>
[  381.356291] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  381.361226] 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 42 f3
[  381.380139] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  381.387861] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  381.395149] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  381.402431] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  381.409714] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  381.416999] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  381.424336]  skb_clone+0x1bb/0x500
[  381.427894]  ? skb_split+0x11e0/0x11e0
[  381.431791]  ? check_preemption_disabled+0x48/0x280
[  381.436823]  ? __this_cpu_preempt_check+0x1c/0x20
[  381.441674]  ? __bpf_redirect+0x55b/0xb60
[  381.445833]  ? __switch_to_asm+0x34/0x70
[  381.449900]  ? __switch_to_asm+0x40/0x70
[  381.453977]  bpf_clone_redirect+0xb9/0x490
[  381.458235]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  381.463269]  ? __sched_text_start+0x8/0x8
[  381.467436]  ? find_held_lock+0x36/0x1c0
[  381.471515]  ? lock_acquire+0x1ed/0x520
[  381.475496]  ? bpf_test_run+0x3cb/0x780
[  381.479479]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.485034]  ? check_preemption_disabled+0x48/0x280
[  381.490069]  ? kasan_check_read+0x11/0x20
[  381.494225]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  381.499513]  ? rcu_softirq_qs+0x20/0x20
[  381.503502]  ? preempt_schedule+0x4d/0x60
[  381.507655]  ? ___preempt_schedule+0x16/0x18
[  381.512108]  ? bpf_test_run+0x25d/0x780
[  381.516099]  ? netlink_diag_dump+0x2a0/0x2a0
[  381.520528]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  381.526073]  ? bpf_test_init.isra.10+0x70/0x100
[  381.530753]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  381.535538]  ? bpf_test_finish.isra.9+0x260/0x260
[  381.540392]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  381.545938]  ? fput+0x130/0x1a0
[  381.549229]  ? __bpf_prog_get+0x9b/0x290
[  381.553302]  ? bpf_test_finish.isra.9+0x260/0x260
[  381.558156]  ? bpf_prog_test_run+0x130/0x1a0
[  381.562572]  ? __x64_sys_bpf+0x3db/0x520
[  381.566672]  ? bpf_prog_get+0x20/0x20
[  381.570498]  ? do_syscall_64+0x1b9/0x820
[  381.574569]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  381.579946]  ? syscall_return_slowpath+0x5e0/0x5e0
[  381.584884]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  381.589739]  ? trace_hardirqs_on_caller+0x310/0x310
[  381.594768]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  381.599796]  ? prepare_exit_to_usermode+0x291/0x3b0
[  381.604823]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  381.609684]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  381.615073] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  381.615156] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  381.622108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  381.622114] Call Trace:
[  381.622120]  <IRQ>
[  381.622142]  dump_stack+0x244/0x39d
[  381.622159]  ? dump_stack_print_info.cold.1+0x20/0x20
[  381.622185]  warn_alloc.cold.116+0xb7/0x1bd
[  381.628774] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  381.638038]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  381.640600] syz-executor0 cpuset=syz0 mems_allowed=0
[  381.642746]  ? lock_downgrade+0x900/0x900
[  381.680391]  ? trace_hardirqs_off+0xb8/0x310
[  381.684810]  ? trace_hardirqs_off+0xb8/0x310
[  381.689229]  __alloc_pages_slowpath+0x2651/0x2de0
[  381.694110]  ? warn_alloc+0x120/0x120
[  381.697916]  ? print_usage_bug+0xc0/0xc0
[  381.701984]  ? warn_alloc+0x120/0x120
[  381.705799]  ? warn_alloc+0x120/0x120
[  381.709605]  ? print_usage_bug+0xc0/0xc0
[  381.713672]  ? print_usage_bug+0xc0/0xc0
[  381.717738]  ? __lock_acquire+0x62f/0x4c20
[  381.721973]  ? __lock_acquire+0x62f/0x4c20
[  381.726217]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  381.731757]  ? should_fail+0x22d/0xd01
[  381.735652]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  381.740760]  ? __lock_acquire+0x62f/0x4c20
[  381.745031]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  381.750136]  ? __lock_acquire+0x62f/0x4c20
[  381.754378]  ? should_fail+0x22d/0xd01
[  381.758283]  ? mark_held_locks+0x130/0x130
[  381.762523]  ? mark_held_locks+0x130/0x130
[  381.766759]  ? zap_class+0x640/0x640
[  381.770513]  ? zap_class+0x640/0x640
[  381.774229]  ? print_usage_bug+0xc0/0xc0
[  381.778299]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.783876]  ? check_preemption_disabled+0x48/0x280
[  381.788909]  ? __lock_is_held+0xb5/0x140
[  381.792981]  __alloc_pages_nodemask+0xad8/0xea0
[  381.797720]  ? zap_class+0x640/0x640
[  381.801446]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  381.806480]  ? find_held_lock+0x36/0x1c0
[  381.810563]  ? ____cache_alloc_node+0x1c7/0x1e0
[  381.815239]  ? lock_downgrade+0x900/0x900
[  381.819430]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.824983]  cache_grow_begin+0xa5/0x8c0
[  381.829056]  ? do_raw_spin_unlock+0xa7/0x330
[  381.833491]  fallback_alloc+0x204/0x2e0
[  381.837489]  ____cache_alloc_node+0x1c7/0x1e0
[  381.842002]  kmem_cache_alloc_node+0xe3/0x730
[  381.846520]  ? ipv6_get_ifaddr+0x42e/0x620
[  381.850771]  __alloc_skb+0x119/0x770
[  381.854486]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  381.859772]  ? netdev_alloc_frag+0x1f0/0x1f0
[  381.864183]  ? lock_downgrade+0x900/0x900
[  381.868343]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.873889]  ? refcount_sub_and_test_checked+0x203/0x310
[  381.879353]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  381.884816]  ? addrconf_rs_timer+0x690/0x690
[  381.889241]  ndisc_alloc_skb+0x144/0x340
[  381.893313]  ndisc_send_rs+0x331/0x6e0
[  381.897213]  addrconf_rs_timer+0x314/0x690
[  381.901470]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.905745]  call_timer_fn+0x272/0x920
[  381.909635]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.913875]  ? process_timeout+0x40/0x40
[  381.917949]  ? mark_held_locks+0xc7/0x130
[  381.922106]  ? _raw_spin_unlock_irq+0x27/0x80
[  381.926605]  ? _raw_spin_unlock_irq+0x27/0x80
[  381.931103]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.935346]  ? lockdep_hardirqs_on+0x296/0x5b0
[  381.939937]  ? trace_hardirqs_on+0xbd/0x310
[  381.944262]  ? kasan_check_read+0x11/0x20
[  381.948411]  ? __run_timers+0x7da/0xc70
[  381.952411]  ? trace_hardirqs_off_caller+0x310/0x310
[  381.957557]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.961840]  __run_timers+0x7e5/0xc70
[  381.965665]  ? timer_fixup_init+0x70/0x70
[  381.969817]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  381.974838]  ? zap_class+0x640/0x640
[  381.978557]  ? print_usage_bug+0xc0/0xc0
[  381.982621]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  381.987821]  ? find_held_lock+0x36/0x1c0
[  381.991889]  ? zap_class+0x640/0x640
[  381.995613]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.001155]  ? check_preemption_disabled+0x48/0x280
[  382.006183]  ? __lock_is_held+0xb5/0x140
[  382.010248]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.015821]  ? check_preemption_disabled+0x48/0x280
[  382.020843]  run_timer_softirq+0x52/0xb0
[  382.024912]  ? rcu_read_lock_sched_held+0x14f/0x180
[  382.029951]  __do_softirq+0x308/0xb7e
[  382.033774]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  382.038289]  ? lock_downgrade+0x900/0x900
[  382.042448]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  382.047560]  ? pvclock_read_flags+0x160/0x160
[  382.052061]  ? lapic_next_event+0x5a/0x90
[  382.056216]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.061779]  ? kvm_clock_read+0x18/0x30
[  382.065753]  ? kvm_sched_clock_read+0x9/0x20
[  382.070165]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  382.075722]  ? check_preemption_disabled+0x48/0x280
[  382.080751]  irq_exit+0x17f/0x1c0
[  382.084209]  smp_apic_timer_interrupt+0x1cb/0x760
[  382.089071]  ? smp_reschedule_interrupt+0x109/0x650
[  382.094092]  ? smp_call_function_single_interrupt+0x650/0x650
[  382.100020]  ? interrupt_entry+0xb5/0xc0
[  382.104102]  ? trace_hardirqs_off_caller+0xbb/0x310
[  382.109124]  ? trace_hardirqs_off_caller+0xbb/0x310
[  382.114145]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  382.118990]  ? trace_hardirqs_on_caller+0x310/0x310
[  382.124040]  ? trace_hardirqs_on_caller+0x310/0x310
[  382.129090]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  382.133947]  apic_timer_interrupt+0xf/0x20
[  382.138181]  </IRQ>
[  382.140424] RIP: 0010:dump_stack+0x358/0x39d
[  382.144836] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  382.163762] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  382.171475] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  382.178756] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  382.186043] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  382.193315] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  382.200583] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  382.207896]  ? dump_stack+0x34f/0x39d
[  382.211727]  ? dump_stack_print_info.cold.1+0x20/0x20
[  382.216947]  ? mark_held_locks+0x130/0x130
[  382.221180]  ? mark_held_locks+0x130/0x130
[  382.225424]  dump_header+0x27b/0xf72
[  382.229152]  ? pagefault_out_of_memory+0x197/0x197
[  382.234094]  ? __lock_acquire+0x62f/0x4c20
[  382.238334]  ? percpu_ref_get_many+0x240/0x240
[  382.242968]  ? print_usage_bug+0xc0/0xc0
[  382.247044]  ? zap_class+0x640/0x640
[  382.250765]  ? print_usage_bug+0xc0/0xc0
[  382.254824]  ? print_usage_bug+0xc0/0xc0
[  382.258891]  ? zap_class+0x640/0x640
[  382.262630]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.268196]  ? find_held_lock+0x36/0x1c0
[  382.272271]  ? mark_held_locks+0xc7/0x130
[  382.276428]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  382.281528]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  382.286627]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  382.291212]  ? trace_hardirqs_on+0xbd/0x310
[  382.295536]  ? kasan_check_read+0x11/0x20
[  382.299688]  ? ___ratelimit+0x3b4/0x672
[  382.303668]  ? trace_hardirqs_off_caller+0x310/0x310
[  382.308779]  ? trace_hardirqs_on+0x310/0x310
[  382.313336]  ? lock_downgrade+0x900/0x900
[  382.317497]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  382.322603]  ? ___ratelimit+0x3b9/0x672
[  382.326580]  ? idr_get_free+0xf70/0xf70
[  382.330557]  ? find_held_lock+0x36/0x1c0
[  382.334666]  oom_kill_process.cold.27+0x10/0x903
[  382.339434]  ? zap_class+0x640/0x640
[  382.343153]  ? check_preemption_disabled+0x48/0x280
[  382.348173]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  382.353106]  ? kasan_check_read+0x11/0x20
[  382.357256]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  382.362545]  ? oom_evaluate_task+0x540/0x540
[  382.366960]  ? find_held_lock+0x36/0x1c0
[  382.371038]  ? out_of_memory+0x974/0x1430
[  382.375193]  ? lock_downgrade+0x900/0x900
[  382.379346]  ? check_preemption_disabled+0x48/0x280
[  382.384383]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  382.389319]  ? kasan_check_read+0x11/0x20
[  382.393476]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  382.398759]  ? rcu_softirq_qs+0x20/0x20
[  382.402744]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  382.408283]  ? oom_evaluate_task+0x302/0x540
[  382.412696]  out_of_memory+0xa84/0x1430
[  382.416684]  ? oom_killer_disable+0x3a0/0x3a0
[  382.421180]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  382.426118]  ? __ww_mutex_check_waiters+0x160/0x160
[  382.431148]  __alloc_pages_slowpath+0x232c/0x2de0
[  382.436027]  ? warn_alloc+0x120/0x120
[  382.439832]  ? mark_held_locks+0x130/0x130
[  382.444081]  ? find_get_entry+0xaae/0x1120
[  382.448328]  ? filemap_map_pages+0x1a20/0x1a20
[  382.452937]  ? zap_class+0x640/0x640
[  382.456675]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.462217]  ? check_preemption_disabled+0x48/0x280
[  382.467284]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  382.472866]  ? should_fail+0x22d/0xd01
[  382.476791]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  382.481897]  ? zap_class+0x640/0x640
[  382.485638]  ? __lock_is_held+0xb5/0x140
[  382.489710]  ? mark_held_locks+0x130/0x130
[  382.493950]  ? lock_release+0xa00/0xa00
[  382.497944]  ? perf_trace_sched_process_exec+0x860/0x860
[  382.503407]  ? xa_load+0x2ba/0x460
[  382.506966]  ? lock_downgrade+0x900/0x900
[  382.511118]  ? __might_sleep+0x95/0x190
[  382.515148]  __alloc_pages_nodemask+0xad8/0xea0
[  382.519825]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  382.524842]  ? __page_cache_alloc+0x191/0x5c0
[  382.529337]  ? xa_load+0x2e1/0x460
[  382.532879]  ? xa_clear_mark+0x40/0x40
[  382.536773]  ? zap_class+0x640/0x640
[  382.540502]  ? zap_class+0x640/0x640
[  382.544219]  ? zap_class+0x640/0x640
[  382.547938]  ? __do_page_cache_readahead+0x663/0x810
[  382.553055]  ? find_held_lock+0x36/0x1c0
[  382.557126]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  382.562679]  alloc_pages_current+0x173/0x350
[  382.567114]  __page_cache_alloc+0x38c/0x5c0
[  382.571449]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  382.576385]  ? kasan_check_read+0x11/0x20
[  382.580538]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  382.585823]  ? generic_perform_write+0x6a0/0x6a0
[  382.590581]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  382.596122]  ? check_preemption_disabled+0x48/0x280
[  382.601150]  filemap_fault+0x1595/0x25f0
[  382.605225]  ? __lock_page_or_retry+0xa00/0xa00
[  382.609902]  ? mark_held_locks+0x130/0x130
[  382.614148]  ? filemap_map_pages+0xd6b/0x1a20
[  382.618645]  ? lock_downgrade+0x900/0x900
[  382.622812]  ? check_preemption_disabled+0x48/0x280
[  382.627830]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  382.632762]  ? kasan_check_read+0x11/0x20
[  382.636916]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  382.642197]  ? rcu_softirq_qs+0x20/0x20
[  382.646187]  ? filemap_map_pages+0xd92/0x1a20
[  382.650697]  ? find_get_entries_tag+0x1400/0x1400
[  382.655575]  ? debug_object_destroy+0x2b0/0x2b0
[  382.660253]  ? lock_pi_update_atomic+0x150/0x150
[  382.665050]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.670605]  ? lock_acquire+0x1ed/0x520
[  382.674579]  ? ext4_filemap_fault+0x7a/0xad
[  382.678909]  ? lock_release+0xa00/0xa00
[  382.682881]  ? perf_trace_sched_process_exec+0x860/0x860
[  382.688336]  ? print_usage_bug+0xc0/0xc0
[  382.692405]  ? print_usage_bug+0xc0/0xc0
[  382.696477]  ? down_read+0x8d/0x120
[  382.700105]  ? ext4_filemap_fault+0x7a/0xad
[  382.704441]  ? __down_interruptible+0x700/0x700
[  382.709124]  ext4_filemap_fault+0x82/0xad
[  382.713276]  __do_fault+0x100/0x6b0
[  382.716926]  ? find_held_lock+0x36/0x1c0
[  382.721004]  ? pmd_devmap_trans_unstable+0x220/0x220
[  382.726150]  ? mark_held_locks+0x130/0x130
[  382.730393]  ? mark_held_locks+0x130/0x130
[  382.734633]  ? debug_smp_processor_id+0x1c/0x20
[  382.739305]  ? perf_trace_lock+0x14d/0x7a0
[  382.743548]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  382.749103]  __handle_mm_fault+0x3ea0/0x5be0
[  382.753522]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  382.758384]  ? lock_is_held_type+0x210/0x210
[  382.762802]  ? __switch_to_asm+0x34/0x70
[  382.766861]  ? __switch_to_asm+0x34/0x70
[  382.770955]  ? zap_class+0x640/0x640
[  382.774670]  ? zap_class+0x640/0x640
[  382.778391]  ? __x64_sys_futex+0x53e/0x6a0
[  382.782636]  ? find_held_lock+0x36/0x1c0
[  382.786710]  ? handle_mm_fault+0x42a/0xc70
[  382.790948]  ? lock_downgrade+0x900/0x900
[  382.795105]  ? check_preemption_disabled+0x48/0x280
[  382.800127]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  382.805057]  ? kasan_check_read+0x11/0x20
[  382.809209]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  382.814488]  ? rcu_softirq_qs+0x20/0x20
[  382.818464]  ? trace_hardirqs_off_caller+0x310/0x310
[  382.823573]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  382.829116]  ? check_preemption_disabled+0x48/0x280
[  382.834141]  handle_mm_fault+0x54f/0xc70
[  382.838209]  ? __handle_mm_fault+0x5be0/0x5be0
[  382.842797]  ? find_vma+0x34/0x190
[  382.846346]  __do_page_fault+0x5e8/0xe60
[  382.850414]  ? trace_hardirqs_off+0xb8/0x310
[  382.854837]  do_page_fault+0xf2/0x7e0
[  382.858639]  ? vmalloc_sync_all+0x30/0x30
[  382.862788]  ? error_entry+0x70/0xd0
[  382.866508]  ? trace_hardirqs_off_caller+0xbb/0x310
[  382.871522]  ? trace_hardirqs_on_caller+0xc0/0x310
[  382.876480]  ? syscall_return_slowpath+0x5e0/0x5e0
[  382.881414]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  382.886261]  ? trace_hardirqs_on_caller+0x310/0x310
[  382.891284]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  382.896747]  ? prepare_exit_to_usermode+0x291/0x3b0
[  382.901766]  ? page_fault+0x8/0x30
[  382.905325]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  382.910177]  ? page_fault+0x8/0x30
[  382.913737]  page_fault+0x1e/0x30
[  382.917247] RIP: 0033:0x45ddf3
[  382.920449] Code: Bad RIP value.
[  382.923812] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  382.929222] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  382.936492] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  382.943766] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  382.951040] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  382.958313] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  382.965606] warn_alloc_show_mem: 1 callbacks suppressed
[  382.965618] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  382.965620] Mem-Info:
[  382.965651] active_anon:45985 inactive_anon:296 isolated_anon:0
[  382.965651]  active_file:15 inactive_file:8 isolated_file:0
[  382.965651]  unevictable:0 dirty:0 writeback:0 unstable:0
[  382.965651]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  382.965651]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  382.965651]  free:13771 free_pcp:249 free_cma:0
[  382.970994] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  382.978368] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  382.980771] Call Trace:
[  383.013563] 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
[  383.022940]  <IRQ>
[  383.050599] lowmem_reserve[]: 0 2818 6321 6321
[  383.053206]  dump_stack+0x244/0x39d
[  383.079296] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  383.081458]  ? dump_stack_print_info.cold.1+0x20/0x20
[  383.085998] lowmem_reserve[]: 0 0 3503 3503
[  383.089649]  warn_alloc.cold.116+0xb7/0x1bd
[  383.117138] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  383.122340]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  383.126669] lowmem_reserve[]: 0 0 0 0
[  383.130985]  ? lock_downgrade+0x900/0x900
[  383.159955] 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
[  383.164820]  ? trace_hardirqs_off+0xb8/0x310
[  383.168584] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  383.172732]  ? trace_hardirqs_off+0xb8/0x310
[  383.186729] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  383.191166]  __alloc_pages_slowpath+0x2651/0x2de0
[  383.206237] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  383.210666]  ? warn_alloc+0x120/0x120
[  383.226072] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  383.230922]  ? print_usage_bug+0xc0/0xc0
[  383.239731] 376 total pagecache pages
[  383.243542]  ? warn_alloc+0x120/0x120
[  383.252099] 0 pages in swap cache
[  383.256160]  ? warn_alloc+0x120/0x120
[  383.259927] Swap cache stats: add 0, delete 0, find 0/0
[  383.259936] Free swap  = 0kB
[  383.263738]  ? print_usage_bug+0xc0/0xc0
[  383.267179] Total swap = 0kB
[  383.270983]  ? kvm_clock_read+0x18/0x30
[  383.276324] 1965979 pages RAM
[  383.279369]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  383.283398] 0 pages HighMem/MovableOnly
[  383.283406] 342854 pages reserved
[  383.286424]  ? print_usage_bug+0xc0/0xc0
[  383.290369] 0 pages cma reserved
[  383.293471]  ? __lock_acquire+0x62f/0x4c20
[  383.298519] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  383.302430]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  383.305916] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  383.309915]  ? should_fail+0x22d/0xd01
[  383.313257] syz-fuzzer cpuset=/ mems_allowed=0
[  383.317483]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  383.353428]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  383.358531]  ? __lock_acquire+0x62f/0x4c20
[  383.362769]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  383.367878]  ? __lock_acquire+0x62f/0x4c20
[  383.372129]  ? should_fail+0x22d/0xd01
[  383.376021]  ? rcu_irq_exit+0x1a2/0x390
[  383.380005]  ? mark_held_locks+0x130/0x130
[  383.384252]  ? mark_held_locks+0x130/0x130
[  383.388491]  ? mark_held_locks+0xc7/0x130
[  383.392643]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  383.397659]  ? zap_class+0x640/0x640
[  383.401374]  ? print_usage_bug+0xc0/0xc0
[  383.405444]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.410995]  ? check_preemption_disabled+0x48/0x280
[  383.416050]  ? __lock_is_held+0xb5/0x140
[  383.420123]  __alloc_pages_nodemask+0xad8/0xea0
[  383.424806]  ? zap_class+0x640/0x640
[  383.428527]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  383.433558]  ? find_held_lock+0x36/0x1c0
[  383.437632]  ? ____cache_alloc_node+0x1c7/0x1e0
[  383.442306]  ? lock_downgrade+0x900/0x900
[  383.446461]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.452001]  cache_grow_begin+0xa5/0x8c0
[  383.456073]  ? do_raw_spin_unlock+0xa7/0x330
[  383.460490]  fallback_alloc+0x204/0x2e0
[  383.464474]  ____cache_alloc_node+0x1c7/0x1e0
[  383.468978]  kmem_cache_alloc_node+0xe3/0x730
[  383.473486]  ? ipv6_get_ifaddr+0x42e/0x620
[  383.477732]  __alloc_skb+0x119/0x770
[  383.481445]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  383.486726]  ? netdev_alloc_frag+0x1f0/0x1f0
[  383.491131]  ? lock_downgrade+0x900/0x900
[  383.495284]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.500824]  ? refcount_sub_and_test_checked+0x203/0x310
[  383.506275]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  383.511742]  ? addrconf_rs_timer+0x690/0x690
[  383.516162]  ndisc_alloc_skb+0x144/0x340
[  383.520230]  ndisc_send_rs+0x331/0x6e0
[  383.524122]  addrconf_rs_timer+0x314/0x690
[  383.528363]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  383.532624]  call_timer_fn+0x272/0x920
[  383.536519]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  383.540756]  ? process_timeout+0x40/0x40
[  383.544831]  ? __run_timers+0x7da/0xc70
[  383.548808]  ? _raw_spin_unlock_irq+0x27/0x80
[  383.553320]  ? _raw_spin_unlock_irq+0x27/0x80
[  383.557817]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  383.562050]  ? lockdep_hardirqs_on+0x296/0x5b0
[  383.566662]  ? trace_hardirqs_on+0xbd/0x310
[  383.570980]  ? kasan_check_read+0x11/0x20
[  383.575137]  ? __run_timers+0x7da/0xc70
[  383.579115]  ? trace_hardirqs_off_caller+0x310/0x310
[  383.584226]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  383.588463]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  383.592697]  __run_timers+0x7e5/0xc70
[  383.596509]  ? timer_fixup_init+0x70/0x70
[  383.600660]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  383.605697]  ? zap_class+0x640/0x640
[  383.609434]  ? enqueue_hrtimer+0x1a5/0x560
[  383.613674]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  383.618882]  ? find_held_lock+0x36/0x1c0
[  383.622953]  ? zap_class+0x640/0x640
[  383.626682]  ? pvclock_read_flags+0x160/0x160
[  383.631177]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.636718]  ? check_preemption_disabled+0x48/0x280
[  383.641745]  ? __lock_is_held+0xb5/0x140
[  383.645807]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.651351]  ? check_preemption_disabled+0x48/0x280
[  383.656394]  run_timer_softirq+0x52/0xb0
[  383.660457]  ? rcu_read_lock_sched_held+0x14f/0x180
[  383.665473]  __do_softirq+0x308/0xb7e
[  383.669271]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  383.673762]  ? lock_downgrade+0x900/0x900
[  383.677916]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  383.683031]  ? pvclock_read_flags+0x160/0x160
[  383.687537]  ? lapic_next_event+0x5a/0x90
[  383.691703]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.697263]  ? kvm_clock_read+0x18/0x30
[  383.701241]  ? kvm_sched_clock_read+0x9/0x20
[  383.705685]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.711219]  ? check_preemption_disabled+0x48/0x280
[  383.716245]  irq_exit+0x17f/0x1c0
[  383.719713]  smp_apic_timer_interrupt+0x1cb/0x760
[  383.724589]  ? smp_reschedule_interrupt+0x109/0x650
[  383.729620]  ? smp_call_function_single_interrupt+0x650/0x650
[  383.735518]  ? interrupt_entry+0xb5/0xc0
[  383.739593]  ? trace_hardirqs_off_caller+0xbb/0x310
[  383.744653]  ? trace_hardirqs_off_caller+0xbb/0x310
[  383.749672]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  383.754521]  ? trace_hardirqs_on_caller+0x310/0x310
[  383.759542]  ? trace_hardirqs_on_caller+0x310/0x310
[  383.764558]  ? task_prio+0x50/0x50
[  383.768101]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.773640]  ? check_preemption_disabled+0x48/0x280
[  383.778665]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  383.783514]  apic_timer_interrupt+0xf/0x20
[  383.787739]  </IRQ>
[  383.789978] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  383.794931] 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 42 f3
[  383.813828] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  383.821540] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  383.828804] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  383.836078] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  383.843342] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  383.850609] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  383.857932]  skb_clone+0x1bb/0x500
[  383.861503]  ? skb_split+0x11e0/0x11e0
[  383.865392]  ? check_preemption_disabled+0x48/0x280
[  383.870413]  ? __this_cpu_preempt_check+0x1c/0x20
[  383.875261]  ? __bpf_redirect+0x55b/0xb60
[  383.879410]  ? __switch_to_asm+0x34/0x70
[  383.883467]  ? __switch_to_asm+0x40/0x70
[  383.887535]  bpf_clone_redirect+0xb9/0x490
[  383.891777]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  383.896797]  ? __sched_text_start+0x8/0x8
[  383.900962]  ? find_held_lock+0x36/0x1c0
[  383.905039]  ? lock_acquire+0x1ed/0x520
[  383.909026]  ? bpf_test_run+0x3cb/0x780
[  383.913006]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.918552]  ? check_preemption_disabled+0x48/0x280
[  383.923573]  ? kasan_check_read+0x11/0x20
[  383.927718]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  383.933019]  ? rcu_softirq_qs+0x20/0x20
[  383.936999]  ? preempt_schedule+0x4d/0x60
[  383.941160]  ? ___preempt_schedule+0x16/0x18
[  383.945575]  ? bpf_test_run+0x25d/0x780
[  383.949575]  ? netlink_diag_dump+0x2a0/0x2a0
[  383.953994]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  383.959541]  ? bpf_test_init.isra.10+0x70/0x100
[  383.964231]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  383.968994]  ? bpf_test_finish.isra.9+0x260/0x260
[  383.973841]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  383.979379]  ? fput+0x130/0x1a0
[  383.982662]  ? __bpf_prog_get+0x9b/0x290
[  383.986758]  ? bpf_test_finish.isra.9+0x260/0x260
[  383.991605]  ? bpf_prog_test_run+0x130/0x1a0
[  383.996038]  ? __x64_sys_bpf+0x3db/0x520
[  384.000105]  ? bpf_prog_get+0x20/0x20
[  384.003932]  ? do_syscall_64+0x1b9/0x820
[  384.007988]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  384.013362]  ? syscall_return_slowpath+0x5e0/0x5e0
[  384.018292]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  384.023139]  ? trace_hardirqs_on_caller+0x310/0x310
[  384.028154]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  384.033169]  ? prepare_exit_to_usermode+0x291/0x3b0
[  384.038194]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  384.043050]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  384.048429] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  384.048494] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  384.055440] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  384.055449] Call Trace:
[  384.062006] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  384.071265]  <IRQ>
[  384.073836] syz-executor0 cpuset=syz0 mems_allowed=0
[  384.084313]  dump_stack+0x244/0x39d
[  384.095159]  ? dump_stack_print_info.cold.1+0x20/0x20
[  384.100378]  warn_alloc.cold.116+0xb7/0x1bd
[  384.104716]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  384.109577]  ? lock_downgrade+0x900/0x900
[  384.113759]  ? trace_hardirqs_off+0xb8/0x310
[  384.118175]  ? trace_hardirqs_off+0xb8/0x310
[  384.122593]  __alloc_pages_slowpath+0x2651/0x2de0
[  384.127457]  ? warn_alloc+0x120/0x120
[  384.131259]  ? print_usage_bug+0xc0/0xc0
[  384.135317]  ? warn_alloc+0x120/0x120
[  384.139120]  ? warn_alloc+0x120/0x120
[  384.142920]  ? print_usage_bug+0xc0/0xc0
[  384.146993]  ? print_usage_bug+0xc0/0xc0
[  384.151079]  ? __lock_acquire+0x62f/0x4c20
[  384.155335]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  384.160884]  ? should_fail+0x22d/0xd01
[  384.164778]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  384.169878]  ? __lock_acquire+0x62f/0x4c20
[  384.174118]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  384.179218]  ? __lock_acquire+0x62f/0x4c20
[  384.183467]  ? should_fail+0x22d/0xd01
[  384.187355]  ? find_held_lock+0x36/0x1c0
[  384.191434]  ? mark_held_locks+0x130/0x130
[  384.195675]  ? mark_held_locks+0x130/0x130
[  384.199933]  ? zap_class+0x640/0x640
[  384.203648]  ? zap_class+0x640/0x640
[  384.207362]  ? print_usage_bug+0xc0/0xc0
[  384.211429]  ? do_raw_spin_unlock+0xa7/0x330
[  384.215838]  ? zap_class+0x640/0x640
[  384.219553]  ? print_usage_bug+0xc0/0xc0
[  384.223615]  ? wq_watchdog_touch+0x9c/0xfe
[  384.227855]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.233399]  ? check_preemption_disabled+0x48/0x280
[  384.238427]  ? __lock_is_held+0xb5/0x140
[  384.242496]  __alloc_pages_nodemask+0xad8/0xea0
[  384.247167]  ? zap_class+0x640/0x640
[  384.250888]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  384.255917]  ? find_held_lock+0x36/0x1c0
[  384.259985]  ? ____cache_alloc_node+0x1c7/0x1e0
[  384.264681]  ? lock_downgrade+0x900/0x900
[  384.268837]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.274387]  cache_grow_begin+0xa5/0x8c0
[  384.278452]  ? do_raw_spin_unlock+0xa7/0x330
[  384.282871]  fallback_alloc+0x204/0x2e0
[  384.286866]  ____cache_alloc_node+0x1c7/0x1e0
[  384.291391]  kmem_cache_alloc_node+0xe3/0x730
[  384.295887]  ? ipv6_get_ifaddr+0x42e/0x620
[  384.300134]  __alloc_skb+0x119/0x770
[  384.303847]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  384.309125]  ? netdev_alloc_frag+0x1f0/0x1f0
[  384.313673]  ? lock_downgrade+0x900/0x900
[  384.317835]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.323369]  ? refcount_sub_and_test_checked+0x203/0x310
[  384.328835]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  384.334284]  ? addrconf_rs_timer+0x690/0x690
[  384.338707]  ndisc_alloc_skb+0x144/0x340
[  384.342812]  ndisc_send_rs+0x331/0x6e0
[  384.346737]  addrconf_rs_timer+0x314/0x690
[  384.350977]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.355230]  call_timer_fn+0x272/0x920
[  384.359116]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.363486]  ? process_timeout+0x40/0x40
[  384.367560]  ? mark_held_locks+0xc7/0x130
[  384.371711]  ? _raw_spin_unlock_irq+0x27/0x80
[  384.376207]  ? _raw_spin_unlock_irq+0x27/0x80
[  384.380703]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.384937]  ? lockdep_hardirqs_on+0x296/0x5b0
[  384.389524]  ? trace_hardirqs_on+0xbd/0x310
[  384.393848]  ? kasan_check_read+0x11/0x20
[  384.398033]  ? __run_timers+0x7da/0xc70
[  384.402019]  ? trace_hardirqs_off_caller+0x310/0x310
[  384.407133]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.411372]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.415614]  __run_timers+0x7e5/0xc70
[  384.419423]  ? timer_fixup_init+0x70/0x70
[  384.423574]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  384.428592]  ? zap_class+0x640/0x640
[  384.432310]  ? print_usage_bug+0xc0/0xc0
[  384.436378]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  384.441578]  ? find_held_lock+0x36/0x1c0
[  384.445647]  ? zap_class+0x640/0x640
[  384.449367]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.454914]  ? check_preemption_disabled+0x48/0x280
[  384.459940]  ? __lock_is_held+0xb5/0x140
[  384.464005]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.469571]  ? check_preemption_disabled+0x48/0x280
[  384.474594]  run_timer_softirq+0x52/0xb0
[  384.478658]  ? rcu_read_lock_sched_held+0x14f/0x180
[  384.483673]  __do_softirq+0x308/0xb7e
[  384.487479]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  384.491975]  ? lock_downgrade+0x900/0x900
[  384.496126]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  384.501239]  ? pvclock_read_flags+0x160/0x160
[  384.505736]  ? lapic_next_event+0x5a/0x90
[  384.509900]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.515457]  ? kvm_clock_read+0x18/0x30
[  384.519434]  ? kvm_sched_clock_read+0x9/0x20
[  384.523844]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  384.529391]  ? check_preemption_disabled+0x48/0x280
[  384.534416]  irq_exit+0x17f/0x1c0
[  384.537874]  smp_apic_timer_interrupt+0x1cb/0x760
[  384.542715]  ? smp_reschedule_interrupt+0x109/0x650
[  384.547731]  ? smp_call_function_single_interrupt+0x650/0x650
[  384.553614]  ? interrupt_entry+0xb5/0xc0
[  384.557678]  ? trace_hardirqs_off_caller+0xbb/0x310
[  384.562695]  ? trace_hardirqs_off_caller+0xbb/0x310
[  384.567713]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  384.572598]  ? trace_hardirqs_on_caller+0x310/0x310
[  384.577612]  ? trace_hardirqs_on_caller+0x310/0x310
[  384.582641]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  384.587493]  apic_timer_interrupt+0xf/0x20
[  384.591719]  </IRQ>
[  384.593957] RIP: 0010:dump_stack+0x358/0x39d
[  384.598365] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  384.617270] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  384.624990] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  384.632267] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  384.639565] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  384.646834] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  384.654135] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  384.661419]  ? dump_stack+0x34f/0x39d
[  384.665235]  ? dump_stack_print_info.cold.1+0x20/0x20
[  384.670425]  ? mark_held_locks+0x130/0x130
[  384.674663]  ? mark_held_locks+0x130/0x130
[  384.678904]  dump_header+0x27b/0xf72
[  384.682634]  ? pagefault_out_of_memory+0x197/0x197
[  384.687571]  ? __lock_acquire+0x62f/0x4c20
[  384.691851]  ? percpu_ref_get_many+0x240/0x240
[  384.696449]  ? print_usage_bug+0xc0/0xc0
[  384.700532]  ? zap_class+0x640/0x640
[  384.704247]  ? print_usage_bug+0xc0/0xc0
[  384.708329]  ? print_usage_bug+0xc0/0xc0
[  384.712397]  ? zap_class+0x640/0x640
[  384.716116]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.721656]  ? find_held_lock+0x36/0x1c0
[  384.725728]  ? mark_held_locks+0xc7/0x130
[  384.729876]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  384.734978]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  384.740089]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  384.744675]  ? trace_hardirqs_on+0xbd/0x310
[  384.748997]  ? kasan_check_read+0x11/0x20
[  384.753154]  ? ___ratelimit+0x3b4/0x672
[  384.757133]  ? trace_hardirqs_off_caller+0x310/0x310
[  384.762250]  ? trace_hardirqs_on+0x310/0x310
[  384.766658]  ? lock_downgrade+0x900/0x900
[  384.770808]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  384.775909]  ? ___ratelimit+0x3b9/0x672
[  384.779886]  ? idr_get_free+0xf70/0xf70
[  384.783865]  ? find_held_lock+0x36/0x1c0
[  384.787970]  oom_kill_process.cold.27+0x10/0x903
[  384.792727]  ? zap_class+0x640/0x640
[  384.796443]  ? check_preemption_disabled+0x48/0x280
[  384.801462]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  384.806396]  ? kasan_check_read+0x11/0x20
[  384.810547]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  384.815839]  ? oom_evaluate_task+0x540/0x540
[  384.820254]  ? find_held_lock+0x36/0x1c0
[  384.824324]  ? out_of_memory+0x974/0x1430
[  384.828477]  ? lock_downgrade+0x900/0x900
[  384.832630]  ? check_preemption_disabled+0x48/0x280
[  384.837648]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  384.842580]  ? kasan_check_read+0x11/0x20
[  384.846728]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  384.852005]  ? rcu_softirq_qs+0x20/0x20
[  384.856007]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  384.861557]  ? oom_evaluate_task+0x302/0x540
[  384.865982]  out_of_memory+0xa84/0x1430
[  384.869974]  ? oom_killer_disable+0x3a0/0x3a0
[  384.874470]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  384.879405]  ? __ww_mutex_check_waiters+0x160/0x160
[  384.884432]  __alloc_pages_slowpath+0x232c/0x2de0
[  384.889303]  ? warn_alloc+0x120/0x120
[  384.893102]  ? mark_held_locks+0x130/0x130
[  384.897363]  ? find_get_entry+0xaae/0x1120
[  384.901614]  ? filemap_map_pages+0x1a20/0x1a20
[  384.906200]  ? zap_class+0x640/0x640
[  384.909920]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.915457]  ? check_preemption_disabled+0x48/0x280
[  384.920477]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  384.926026]  ? should_fail+0x22d/0xd01
[  384.929935]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  384.935052]  ? zap_class+0x640/0x640
[  384.938807]  ? __lock_is_held+0xb5/0x140
[  384.942875]  ? mark_held_locks+0x130/0x130
[  384.947115]  ? lock_release+0xa00/0xa00
[  384.951103]  ? perf_trace_sched_process_exec+0x860/0x860
[  384.956550]  ? xa_load+0x2ba/0x460
[  384.960092]  ? lock_downgrade+0x900/0x900
[  384.964244]  ? __might_sleep+0x95/0x190
[  384.968251]  __alloc_pages_nodemask+0xad8/0xea0
[  384.972926]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  384.977947]  ? __page_cache_alloc+0x191/0x5c0
[  384.982438]  ? xa_load+0x2e1/0x460
[  384.985975]  ? xa_clear_mark+0x40/0x40
[  384.989883]  ? zap_class+0x640/0x640
[  384.993602]  ? zap_class+0x640/0x640
[  384.997320]  ? zap_class+0x640/0x640
[  385.001040]  ? __do_page_cache_readahead+0x663/0x810
[  385.006150]  ? find_held_lock+0x36/0x1c0
[  385.010216]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  385.015779]  alloc_pages_current+0x173/0x350
[  385.020193]  __page_cache_alloc+0x38c/0x5c0
[  385.024510]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  385.029470]  ? kasan_check_read+0x11/0x20
[  385.033632]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  385.038911]  ? generic_perform_write+0x6a0/0x6a0
[  385.043665]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  385.049204]  ? check_preemption_disabled+0x48/0x280
[  385.054229]  filemap_fault+0x1595/0x25f0
[  385.058302]  ? __lock_page_or_retry+0xa00/0xa00
[  385.062974]  ? mark_held_locks+0x130/0x130
[  385.067217]  ? filemap_map_pages+0xd6b/0x1a20
[  385.071741]  ? lock_downgrade+0x900/0x900
[  385.075902]  ? check_preemption_disabled+0x48/0x280
[  385.080947]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  385.085888]  ? kasan_check_read+0x11/0x20
[  385.090042]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  385.095320]  ? rcu_softirq_qs+0x20/0x20
[  385.099311]  ? filemap_map_pages+0xd92/0x1a20
[  385.103817]  ? find_get_entries_tag+0x1400/0x1400
[  385.108662]  ? debug_object_destroy+0x2b0/0x2b0
[  385.113338]  ? lock_pi_update_atomic+0x150/0x150
[  385.118093]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.123643]  ? lock_acquire+0x1ed/0x520
[  385.127620]  ? ext4_filemap_fault+0x7a/0xad
[  385.131952]  ? lock_release+0xa00/0xa00
[  385.135923]  ? perf_trace_sched_process_exec+0x860/0x860
[  385.141385]  ? print_usage_bug+0xc0/0xc0
[  385.145446]  ? print_usage_bug+0xc0/0xc0
[  385.149518]  ? down_read+0x8d/0x120
[  385.153141]  ? ext4_filemap_fault+0x7a/0xad
[  385.157464]  ? __down_interruptible+0x700/0x700
[  385.162174]  ext4_filemap_fault+0x82/0xad
[  385.166324]  __do_fault+0x100/0x6b0
[  385.169951]  ? find_held_lock+0x36/0x1c0
[  385.174028]  ? pmd_devmap_trans_unstable+0x220/0x220
[  385.179617]  ? mark_held_locks+0x130/0x130
[  385.183854]  ? mark_held_locks+0x130/0x130
[  385.188090]  ? debug_smp_processor_id+0x1c/0x20
[  385.192758]  ? perf_trace_lock+0x14d/0x7a0
[  385.196999]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  385.202550]  __handle_mm_fault+0x3ea0/0x5be0
[  385.206970]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  385.211814]  ? lock_is_held_type+0x210/0x210
[  385.216231]  ? __switch_to_asm+0x34/0x70
[  385.220292]  ? __switch_to_asm+0x34/0x70
[  385.224401]  ? zap_class+0x640/0x640
[  385.228145]  ? zap_class+0x640/0x640
[  385.231856]  ? __x64_sys_futex+0x53e/0x6a0
[  385.236096]  ? find_held_lock+0x36/0x1c0
[  385.240169]  ? handle_mm_fault+0x42a/0xc70
[  385.244406]  ? lock_downgrade+0x900/0x900
[  385.248557]  ? check_preemption_disabled+0x48/0x280
[  385.253577]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  385.258505]  ? kasan_check_read+0x11/0x20
[  385.262651]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  385.267941]  ? rcu_softirq_qs+0x20/0x20
[  385.271928]  ? trace_hardirqs_off_caller+0x310/0x310
[  385.277038]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  385.282754]  ? check_preemption_disabled+0x48/0x280
[  385.287790]  handle_mm_fault+0x54f/0xc70
[  385.291858]  ? __handle_mm_fault+0x5be0/0x5be0
[  385.296447]  ? find_vma+0x34/0x190
[  385.300038]  __do_page_fault+0x5e8/0xe60
[  385.304098]  ? trace_hardirqs_off+0xb8/0x310
[  385.308516]  do_page_fault+0xf2/0x7e0
[  385.312331]  ? vmalloc_sync_all+0x30/0x30
[  385.316482]  ? error_entry+0x70/0xd0
[  385.320196]  ? trace_hardirqs_off_caller+0xbb/0x310
[  385.325216]  ? trace_hardirqs_on_caller+0xc0/0x310
[  385.330146]  ? syscall_return_slowpath+0x5e0/0x5e0
[  385.335078]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  385.339925]  ? trace_hardirqs_on_caller+0x310/0x310
[  385.344938]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  385.350417]  ? prepare_exit_to_usermode+0x291/0x3b0
[  385.355449]  ? page_fault+0x8/0x30
[  385.358993]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  385.363866]  ? page_fault+0x8/0x30
[  385.367425]  page_fault+0x1e/0x30
[  385.370877] RIP: 0033:0x45ddf3
[  385.374085] Code: Bad RIP value.
[  385.377445] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  385.382806] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  385.390079] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  385.397349] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  385.404626] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  385.411909] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  385.419206] warn_alloc_show_mem: 1 callbacks suppressed
[  385.419218] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  385.419220] Mem-Info:
[  385.419252] active_anon:45985 inactive_anon:296 isolated_anon:0
[  385.419252]  active_file:15 inactive_file:8 isolated_file:0
[  385.419252]  unevictable:0 dirty:0 writeback:0 unstable:0
[  385.419252]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  385.419252]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  385.419252]  free:13771 free_pcp:249 free_cma:0
[  385.424592] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  385.431962] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  385.434364] Call Trace:
[  385.467164] 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
[  385.476527]  <IRQ>
[  385.504198] lowmem_reserve[]: 0 2818 6321 6321
[  385.506787]  dump_stack+0x244/0x39d
[  385.532891] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  385.532936] lowmem_reserve[]: 0 0 3503 3503
[  385.535119]  ? dump_stack_print_info.cold.1+0x20/0x20
[  385.539662] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  385.543293]  warn_alloc.cold.116+0xb7/0x1bd
[  385.570769] lowmem_reserve[]: 0 0 0 0
[  385.575097]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  385.580258] 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
[  385.609241]  ? lock_downgrade+0x900/0x900
[  385.613537] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  385.617339]  ? trace_hardirqs_off+0xb8/0x310
[  385.622171] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  385.635701]  ? trace_hardirqs_off+0xb8/0x310
[  385.639846] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  385.654927]  __alloc_pages_slowpath+0x2651/0x2de0
[  385.659314] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  385.674754]  ? warn_alloc+0x120/0x120
[  385.679121] 376 total pagecache pages
[  385.687951]  ? print_usage_bug+0xc0/0xc0
[  385.692773] 0 pages in swap cache
[  385.701332]  ? warn_alloc+0x120/0x120
[  385.705108] Swap cache stats: add 0, delete 0, find 0/0
[  385.708912]  ? warn_alloc+0x120/0x120
[  385.712952] Free swap  = 0kB
[  385.716397]  ? print_usage_bug+0xc0/0xc0
[  385.720175] Total swap = 0kB
[  385.725533]  ? kvm_clock_read+0x18/0x30
[  385.729307] 1965979 pages RAM
[  385.732335]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  385.736366] 0 pages HighMem/MovableOnly
[  385.739377]  ? print_usage_bug+0xc0/0xc0
[  385.743329] 342854 pages reserved
[  385.746429]  ? __lock_acquire+0x62f/0x4c20
[  385.751419] 0 pages cma reserved
[  385.755393]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  385.759486] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  385.762895]  ? should_fail+0x22d/0xd01
[  385.767170] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  385.770470]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  385.775983] syz-fuzzer cpuset=/ mems_allowed=0
[  385.782468]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  385.811481]  ? __lock_acquire+0x62f/0x4c20
[  385.815725]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  385.820823]  ? __lock_acquire+0x62f/0x4c20
[  385.825059]  ? should_fail+0x22d/0xd01
[  385.828942]  ? rcu_irq_exit+0x1a2/0x390
[  385.832922]  ? mark_held_locks+0x130/0x130
[  385.837159]  ? mark_held_locks+0x130/0x130
[  385.841397]  ? mark_held_locks+0xc7/0x130
[  385.845544]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  385.850556]  ? zap_class+0x640/0x640
[  385.854269]  ? print_usage_bug+0xc0/0xc0
[  385.858330]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.863866]  ? check_preemption_disabled+0x48/0x280
[  385.868902]  ? __lock_is_held+0xb5/0x140
[  385.872982]  __alloc_pages_nodemask+0xad8/0xea0
[  385.877671]  ? zap_class+0x640/0x640
[  385.881392]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  385.886419]  ? find_held_lock+0x36/0x1c0
[  385.890490]  ? ____cache_alloc_node+0x1c7/0x1e0
[  385.895159]  ? lock_downgrade+0x900/0x900
[  385.899319]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.904864]  cache_grow_begin+0xa5/0x8c0
[  385.908928]  ? do_raw_spin_unlock+0xa7/0x330
[  385.913346]  fallback_alloc+0x204/0x2e0
[  385.917325]  ____cache_alloc_node+0x1c7/0x1e0
[  385.921827]  kmem_cache_alloc_node+0xe3/0x730
[  385.926326]  ? ipv6_get_ifaddr+0x42e/0x620
[  385.930570]  __alloc_skb+0x119/0x770
[  385.934283]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  385.939563]  ? netdev_alloc_frag+0x1f0/0x1f0
[  385.943973]  ? lock_downgrade+0x900/0x900
[  385.948133]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.953674]  ? refcount_sub_and_test_checked+0x203/0x310
[  385.959130]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  385.964596]  ? addrconf_rs_timer+0x690/0x690
[  385.969057]  ndisc_alloc_skb+0x144/0x340
[  385.973139]  ndisc_send_rs+0x331/0x6e0
[  385.977041]  addrconf_rs_timer+0x314/0x690
[  385.981285]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  385.985559]  call_timer_fn+0x272/0x920
[  385.989460]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  385.993697]  ? process_timeout+0x40/0x40
[  385.997766]  ? __run_timers+0x7da/0xc70
[  386.001743]  ? _raw_spin_unlock_irq+0x27/0x80
[  386.006240]  ? _raw_spin_unlock_irq+0x27/0x80
[  386.010745]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.014983]  ? lockdep_hardirqs_on+0x296/0x5b0
[  386.019573]  ? trace_hardirqs_on+0xbd/0x310
[  386.023895]  ? kasan_check_read+0x11/0x20
[  386.028048]  ? __run_timers+0x7da/0xc70
[  386.032046]  ? trace_hardirqs_off_caller+0x310/0x310
[  386.037155]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.041397]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.045630]  __run_timers+0x7e5/0xc70
[  386.049439]  ? timer_fixup_init+0x70/0x70
[  386.053592]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  386.058608]  ? zap_class+0x640/0x640
[  386.062344]  ? enqueue_hrtimer+0x1a5/0x560
[  386.066592]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  386.071788]  ? find_held_lock+0x36/0x1c0
[  386.075853]  ? zap_class+0x640/0x640
[  386.079588]  ? pvclock_read_flags+0x160/0x160
[  386.084090]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.089629]  ? check_preemption_disabled+0x48/0x280
[  386.094671]  ? __lock_is_held+0xb5/0x140
[  386.098738]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.104279]  ? check_preemption_disabled+0x48/0x280
[  386.109305]  run_timer_softirq+0x52/0xb0
[  386.113366]  ? rcu_read_lock_sched_held+0x14f/0x180
[  386.118403]  __do_softirq+0x308/0xb7e
[  386.122282]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  386.126804]  ? lock_downgrade+0x900/0x900
[  386.130953]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  386.136064]  ? pvclock_read_flags+0x160/0x160
[  386.140562]  ? lapic_next_event+0x5a/0x90
[  386.144713]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.150285]  ? kvm_clock_read+0x18/0x30
[  386.154258]  ? kvm_sched_clock_read+0x9/0x20
[  386.158682]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.164251]  ? check_preemption_disabled+0x48/0x280
[  386.169276]  irq_exit+0x17f/0x1c0
[  386.172734]  smp_apic_timer_interrupt+0x1cb/0x760
[  386.177577]  ? smp_reschedule_interrupt+0x109/0x650
[  386.182596]  ? smp_call_function_single_interrupt+0x650/0x650
[  386.188479]  ? interrupt_entry+0xb5/0xc0
[  386.192546]  ? trace_hardirqs_off_caller+0xbb/0x310
[  386.197565]  ? trace_hardirqs_off_caller+0xbb/0x310
[  386.202582]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  386.207428]  ? trace_hardirqs_on_caller+0x310/0x310
[  386.212449]  ? trace_hardirqs_on_caller+0x310/0x310
[  386.217464]  ? task_prio+0x50/0x50
[  386.221008]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.226571]  ? check_preemption_disabled+0x48/0x280
[  386.231605]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  386.236460]  apic_timer_interrupt+0xf/0x20
[  386.240686]  </IRQ>
[  386.242929] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  386.247864] 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 42 f3
[  386.266768] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  386.274483] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  386.281748] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  386.289026] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  386.296291] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  386.303560] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  386.311327]  skb_clone+0x1bb/0x500
[  386.314882]  ? skb_split+0x11e0/0x11e0
[  386.318818]  ? check_preemption_disabled+0x48/0x280
[  386.323854]  ? __this_cpu_preempt_check+0x1c/0x20
[  386.328702]  ? __bpf_redirect+0x55b/0xb60
[  386.332880]  ? __switch_to_asm+0x34/0x70
[  386.336941]  ? __switch_to_asm+0x40/0x70
[  386.341006]  bpf_clone_redirect+0xb9/0x490
[  386.345262]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  386.350281]  ? __sched_text_start+0x8/0x8
[  386.354458]  ? find_held_lock+0x36/0x1c0
[  386.358541]  ? lock_acquire+0x1ed/0x520
[  386.362514]  ? bpf_test_run+0x3cb/0x780
[  386.366490]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.372036]  ? check_preemption_disabled+0x48/0x280
[  386.377074]  ? kasan_check_read+0x11/0x20
[  386.381224]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  386.386499]  ? rcu_softirq_qs+0x20/0x20
[  386.390478]  ? preempt_schedule+0x4d/0x60
[  386.394627]  ? ___preempt_schedule+0x16/0x18
[  386.399054]  ? bpf_test_run+0x25d/0x780
[  386.403061]  ? netlink_diag_dump+0x2a0/0x2a0
[  386.407471]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  386.413007]  ? bpf_test_init.isra.10+0x70/0x100
[  386.417717]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  386.422484]  ? bpf_test_finish.isra.9+0x260/0x260
[  386.427325]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  386.432866]  ? fput+0x130/0x1a0
[  386.436156]  ? __bpf_prog_get+0x9b/0x290
[  386.440220]  ? bpf_test_finish.isra.9+0x260/0x260
[  386.445064]  ? bpf_prog_test_run+0x130/0x1a0
[  386.449473]  ? __x64_sys_bpf+0x3db/0x520
[  386.453533]  ? bpf_prog_get+0x20/0x20
[  386.457358]  ? do_syscall_64+0x1b9/0x820
[  386.461422]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  386.466813]  ? syscall_return_slowpath+0x5e0/0x5e0
[  386.471770]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  386.476611]  ? trace_hardirqs_on_caller+0x310/0x310
[  386.481627]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  386.486652]  ? prepare_exit_to_usermode+0x291/0x3b0
[  386.491676]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  386.496524]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  386.501911] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  386.501977] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  386.508919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  386.508924] Call Trace:
[  386.508930]  <IRQ>
[  386.508946]  dump_stack+0x244/0x39d
[  386.508966]  ? dump_stack_print_info.cold.1+0x20/0x20
[  386.515492] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  386.524795]  warn_alloc.cold.116+0xb7/0x1bd
[  386.527352] syz-executor0 cpuset=syz0 mems_allowed=0
[  386.529502]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  386.563003]  ? lock_downgrade+0x900/0x900
[  386.567173]  ? trace_hardirqs_off+0xb8/0x310
[  386.571586]  ? trace_hardirqs_off+0xb8/0x310
[  386.576003]  __alloc_pages_slowpath+0x2651/0x2de0
[  386.580887]  ? warn_alloc+0x120/0x120
[  386.584690]  ? print_usage_bug+0xc0/0xc0
[  386.588753]  ? warn_alloc+0x120/0x120
[  386.592557]  ? warn_alloc+0x120/0x120
[  386.596362]  ? print_usage_bug+0xc0/0xc0
[  386.600432]  ? print_usage_bug+0xc0/0xc0
[  386.604494]  ? __lock_acquire+0x62f/0x4c20
[  386.608741]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  386.614290]  ? should_fail+0x22d/0xd01
[  386.618182]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  386.623286]  ? __lock_acquire+0x62f/0x4c20
[  386.627527]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  386.632629]  ? __lock_acquire+0x62f/0x4c20
[  386.636860]  ? should_fail+0x22d/0xd01
[  386.640747]  ? find_held_lock+0x36/0x1c0
[  386.644815]  ? mark_held_locks+0x130/0x130
[  386.649053]  ? mark_held_locks+0x130/0x130
[  386.653287]  ? zap_class+0x640/0x640
[  386.657001]  ? zap_class+0x640/0x640
[  386.660725]  ? print_usage_bug+0xc0/0xc0
[  386.664786]  ? do_raw_spin_unlock+0xa7/0x330
[  386.669198]  ? zap_class+0x640/0x640
[  386.672915]  ? print_usage_bug+0xc0/0xc0
[  386.676974]  ? wq_watchdog_touch+0x9c/0xfe
[  386.681211]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.686748]  ? check_preemption_disabled+0x48/0x280
[  386.691773]  ? __lock_is_held+0xb5/0x140
[  386.695839]  __alloc_pages_nodemask+0xad8/0xea0
[  386.700511]  ? zap_class+0x640/0x640
[  386.704232]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  386.709263]  ? find_held_lock+0x36/0x1c0
[  386.713348]  ? ____cache_alloc_node+0x1c7/0x1e0
[  386.718033]  ? lock_downgrade+0x900/0x900
[  386.722191]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.727736]  cache_grow_begin+0xa5/0x8c0
[  386.731798]  ? do_raw_spin_unlock+0xa7/0x330
[  386.736213]  fallback_alloc+0x204/0x2e0
[  386.740192]  ____cache_alloc_node+0x1c7/0x1e0
[  386.744694]  kmem_cache_alloc_node+0xe3/0x730
[  386.749193]  ? ipv6_get_ifaddr+0x42e/0x620
[  386.753439]  __alloc_skb+0x119/0x770
[  386.757168]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  386.762450]  ? netdev_alloc_frag+0x1f0/0x1f0
[  386.766857]  ? lock_downgrade+0x900/0x900
[  386.771031]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.776584]  ? refcount_sub_and_test_checked+0x203/0x310
[  386.782060]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  386.787515]  ? addrconf_rs_timer+0x690/0x690
[  386.791933]  ndisc_alloc_skb+0x144/0x340
[  386.796001]  ndisc_send_rs+0x331/0x6e0
[  386.799900]  addrconf_rs_timer+0x314/0x690
[  386.804159]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.808412]  call_timer_fn+0x272/0x920
[  386.812298]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.816531]  ? process_timeout+0x40/0x40
[  386.820602]  ? mark_held_locks+0xc7/0x130
[  386.824754]  ? _raw_spin_unlock_irq+0x27/0x80
[  386.829249]  ? _raw_spin_unlock_irq+0x27/0x80
[  386.833790]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.838051]  ? lockdep_hardirqs_on+0x296/0x5b0
[  386.842637]  ? trace_hardirqs_on+0xbd/0x310
[  386.846993]  ? kasan_check_read+0x11/0x20
[  386.851149]  ? __run_timers+0x7da/0xc70
[  386.855125]  ? trace_hardirqs_off_caller+0x310/0x310
[  386.860238]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.864477]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.868709]  __run_timers+0x7e5/0xc70
[  386.872523]  ? timer_fixup_init+0x70/0x70
[  386.876676]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  386.881696]  ? zap_class+0x640/0x640
[  386.885415]  ? print_usage_bug+0xc0/0xc0
[  386.889478]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  386.894676]  ? find_held_lock+0x36/0x1c0
[  386.898758]  ? zap_class+0x640/0x640
[  386.902481]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.908029]  ? check_preemption_disabled+0x48/0x280
[  386.913061]  ? __lock_is_held+0xb5/0x140
[  386.917125]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.922666]  ? check_preemption_disabled+0x48/0x280
[  386.927685]  run_timer_softirq+0x52/0xb0
[  386.931745]  ? rcu_read_lock_sched_held+0x14f/0x180
[  386.936789]  __do_softirq+0x308/0xb7e
[  386.940596]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  386.945088]  ? lock_downgrade+0x900/0x900
[  386.949243]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  386.954356]  ? pvclock_read_flags+0x160/0x160
[  386.958857]  ? lapic_next_event+0x5a/0x90
[  386.963004]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.968557]  ? kvm_clock_read+0x18/0x30
[  386.972538]  ? kvm_sched_clock_read+0x9/0x20
[  386.976946]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  386.982483]  ? check_preemption_disabled+0x48/0x280
[  386.987509]  irq_exit+0x17f/0x1c0
[  386.990962]  smp_apic_timer_interrupt+0x1cb/0x760
[  386.995802]  ? smp_reschedule_interrupt+0x109/0x650
[  387.000821]  ? smp_call_function_single_interrupt+0x650/0x650
[  387.006707]  ? interrupt_entry+0xb5/0xc0
[  387.010771]  ? trace_hardirqs_off_caller+0xbb/0x310
[  387.015787]  ? trace_hardirqs_off_caller+0xbb/0x310
[  387.020805]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  387.025643]  ? trace_hardirqs_on_caller+0x310/0x310
[  387.030672]  ? trace_hardirqs_on_caller+0x310/0x310
[  387.035695]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  387.040545]  apic_timer_interrupt+0xf/0x20
[  387.044772]  </IRQ>
[  387.047022] RIP: 0010:dump_stack+0x358/0x39d
[  387.051445] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  387.070345] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  387.078060] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  387.085327] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  387.092604] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  387.099868] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  387.107135] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  387.114424]  ? dump_stack+0x34f/0x39d
[  387.118263]  ? dump_stack_print_info.cold.1+0x20/0x20
[  387.123470]  ? mark_held_locks+0x130/0x130
[  387.127718]  ? mark_held_locks+0x130/0x130
[  387.131960]  dump_header+0x27b/0xf72
[  387.135687]  ? pagefault_out_of_memory+0x197/0x197
[  387.140624]  ? __lock_acquire+0x62f/0x4c20
[  387.144873]  ? percpu_ref_get_many+0x240/0x240
[  387.149456]  ? print_usage_bug+0xc0/0xc0
[  387.153525]  ? zap_class+0x640/0x640
[  387.157239]  ? print_usage_bug+0xc0/0xc0
[  387.161301]  ? print_usage_bug+0xc0/0xc0
[  387.165362]  ? zap_class+0x640/0x640
[  387.169098]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.174639]  ? find_held_lock+0x36/0x1c0
[  387.178714]  ? mark_held_locks+0xc7/0x130
[  387.182991]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  387.188101]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  387.193205]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  387.197790]  ? trace_hardirqs_on+0xbd/0x310
[  387.202111]  ? kasan_check_read+0x11/0x20
[  387.206259]  ? ___ratelimit+0x3b4/0x672
[  387.210238]  ? trace_hardirqs_off_caller+0x310/0x310
[  387.215345]  ? trace_hardirqs_on+0x310/0x310
[  387.219759]  ? lock_downgrade+0x900/0x900
[  387.223912]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  387.229027]  ? ___ratelimit+0x3b9/0x672
[  387.233005]  ? idr_get_free+0xf70/0xf70
[  387.236990]  ? find_held_lock+0x36/0x1c0
[  387.241070]  oom_kill_process.cold.27+0x10/0x903
[  387.245824]  ? zap_class+0x640/0x640
[  387.249534]  ? check_preemption_disabled+0x48/0x280
[  387.254550]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  387.259480]  ? kasan_check_read+0x11/0x20
[  387.263626]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  387.268902]  ? oom_evaluate_task+0x540/0x540
[  387.273316]  ? find_held_lock+0x36/0x1c0
[  387.277393]  ? out_of_memory+0x974/0x1430
[  387.281535]  ? lock_downgrade+0x900/0x900
[  387.285676]  ? check_preemption_disabled+0x48/0x280
[  387.290729]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  387.295659]  ? kasan_check_read+0x11/0x20
[  387.299808]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  387.305096]  ? rcu_softirq_qs+0x20/0x20
[  387.309073]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  387.314605]  ? oom_evaluate_task+0x302/0x540
[  387.319070]  out_of_memory+0xa84/0x1430
[  387.323058]  ? oom_killer_disable+0x3a0/0x3a0
[  387.327559]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  387.332493]  ? __ww_mutex_check_waiters+0x160/0x160
[  387.337523]  __alloc_pages_slowpath+0x232c/0x2de0
[  387.342401]  ? warn_alloc+0x120/0x120
[  387.346200]  ? mark_held_locks+0x130/0x130
[  387.350444]  ? find_get_entry+0xaae/0x1120
[  387.354687]  ? filemap_map_pages+0x1a20/0x1a20
[  387.359287]  ? zap_class+0x640/0x640
[  387.363008]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.368555]  ? check_preemption_disabled+0x48/0x280
[  387.373580]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  387.379122]  ? should_fail+0x22d/0xd01
[  387.383025]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  387.388136]  ? zap_class+0x640/0x640
[  387.391877]  ? __lock_is_held+0xb5/0x140
[  387.395947]  ? mark_held_locks+0x130/0x130
[  387.400188]  ? lock_release+0xa00/0xa00
[  387.404164]  ? perf_trace_sched_process_exec+0x860/0x860
[  387.409621]  ? xa_load+0x2ba/0x460
[  387.413168]  ? lock_downgrade+0x900/0x900
[  387.417328]  ? __might_sleep+0x95/0x190
[  387.421327]  __alloc_pages_nodemask+0xad8/0xea0
[  387.426010]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  387.431051]  ? __page_cache_alloc+0x191/0x5c0
[  387.435575]  ? xa_load+0x2e1/0x460
[  387.439120]  ? xa_clear_mark+0x40/0x40
[  387.443011]  ? zap_class+0x640/0x640
[  387.446742]  ? zap_class+0x640/0x640
[  387.450459]  ? zap_class+0x640/0x640
[  387.454180]  ? __do_page_cache_readahead+0x663/0x810
[  387.459292]  ? find_held_lock+0x36/0x1c0
[  387.463364]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  387.468916]  alloc_pages_current+0x173/0x350
[  387.473335]  __page_cache_alloc+0x38c/0x5c0
[  387.477655]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  387.482586]  ? kasan_check_read+0x11/0x20
[  387.486736]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  387.492042]  ? generic_perform_write+0x6a0/0x6a0
[  387.496799]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  387.502350]  ? check_preemption_disabled+0x48/0x280
[  387.507397]  filemap_fault+0x1595/0x25f0
[  387.511477]  ? __lock_page_or_retry+0xa00/0xa00
[  387.516155]  ? mark_held_locks+0x130/0x130
[  387.520408]  ? filemap_map_pages+0xd6b/0x1a20
[  387.524912]  ? lock_downgrade+0x900/0x900
[  387.529086]  ? check_preemption_disabled+0x48/0x280
[  387.534105]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  387.539039]  ? kasan_check_read+0x11/0x20
[  387.543192]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  387.548467]  ? rcu_softirq_qs+0x20/0x20
[  387.552460]  ? filemap_map_pages+0xd92/0x1a20
[  387.556969]  ? find_get_entries_tag+0x1400/0x1400
[  387.561818]  ? debug_object_destroy+0x2b0/0x2b0
[  387.566495]  ? lock_pi_update_atomic+0x150/0x150
[  387.571251]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.576805]  ? lock_acquire+0x1ed/0x520
[  387.580779]  ? ext4_filemap_fault+0x7a/0xad
[  387.585107]  ? lock_release+0xa00/0xa00
[  387.589096]  ? perf_trace_sched_process_exec+0x860/0x860
[  387.594550]  ? print_usage_bug+0xc0/0xc0
[  387.598613]  ? print_usage_bug+0xc0/0xc0
[  387.602689]  ? down_read+0x8d/0x120
[  387.606314]  ? ext4_filemap_fault+0x7a/0xad
[  387.610637]  ? __down_interruptible+0x700/0x700
[  387.615323]  ext4_filemap_fault+0x82/0xad
[  387.619477]  __do_fault+0x100/0x6b0
[  387.623123]  ? find_held_lock+0x36/0x1c0
[  387.627188]  ? pmd_devmap_trans_unstable+0x220/0x220
[  387.632293]  ? mark_held_locks+0x130/0x130
[  387.636532]  ? mark_held_locks+0x130/0x130
[  387.640771]  ? debug_smp_processor_id+0x1c/0x20
[  387.645448]  ? perf_trace_lock+0x14d/0x7a0
[  387.649707]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  387.655253]  __handle_mm_fault+0x3ea0/0x5be0
[  387.659672]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  387.664520]  ? lock_is_held_type+0x210/0x210
[  387.668934]  ? __switch_to_asm+0x34/0x70
[  387.672994]  ? __switch_to_asm+0x34/0x70
[  387.677078]  ? zap_class+0x640/0x640
[  387.680795]  ? zap_class+0x640/0x640
[  387.684507]  ? __x64_sys_futex+0x53e/0x6a0
[  387.688751]  ? find_held_lock+0x36/0x1c0
[  387.692860]  ? handle_mm_fault+0x42a/0xc70
[  387.697099]  ? lock_downgrade+0x900/0x900
[  387.701250]  ? check_preemption_disabled+0x48/0x280
[  387.706269]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  387.711197]  ? kasan_check_read+0x11/0x20
[  387.715342]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  387.720623]  ? rcu_softirq_qs+0x20/0x20
[  387.724611]  ? trace_hardirqs_off_caller+0x310/0x310
[  387.729717]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  387.735260]  ? check_preemption_disabled+0x48/0x280
[  387.740284]  handle_mm_fault+0x54f/0xc70
[  387.744349]  ? __handle_mm_fault+0x5be0/0x5be0
[  387.748944]  ? find_vma+0x34/0x190
[  387.752487]  __do_page_fault+0x5e8/0xe60
[  387.756549]  ? trace_hardirqs_off+0xb8/0x310
[  387.760987]  do_page_fault+0xf2/0x7e0
[  387.764796]  ? vmalloc_sync_all+0x30/0x30
[  387.768965]  ? error_entry+0x70/0xd0
[  387.772681]  ? trace_hardirqs_off_caller+0xbb/0x310
[  387.777698]  ? trace_hardirqs_on_caller+0xc0/0x310
[  387.782632]  ? syscall_return_slowpath+0x5e0/0x5e0
[  387.787565]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  387.792414]  ? trace_hardirqs_on_caller+0x310/0x310
[  387.797430]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  387.802902]  ? prepare_exit_to_usermode+0x291/0x3b0
[  387.807969]  ? page_fault+0x8/0x30
[  387.811516]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  387.816418]  ? page_fault+0x8/0x30
[  387.819956]  page_fault+0x1e/0x30
[  387.823412] RIP: 0033:0x45ddf3
[  387.826625] Code: Bad RIP value.
[  387.829984] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  387.835351] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  387.842621] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  387.849888] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  387.857157] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  387.864440] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  387.871734] warn_alloc_show_mem: 1 callbacks suppressed
[  387.871746] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  387.871748] Mem-Info:
[  387.871794] active_anon:45985 inactive_anon:296 isolated_anon:0
[  387.871794]  active_file:15 inactive_file:8 isolated_file:0
[  387.871794]  unevictable:0 dirty:0 writeback:0 unstable:0
[  387.871794]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  387.871794]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  387.871794]  free:13771 free_pcp:249 free_cma:0
[  387.877127] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  387.877136] Call Trace:
[  387.884507] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  387.886906]  <IRQ>
[  387.919695] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  387.929068]  dump_stack+0x244/0x39d
[  387.931630] lowmem_reserve[]: 0 2818 6321 6321
[  387.959344]  ? dump_stack_print_info.cold.1+0x20/0x20
[  387.961467] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  387.987592]  warn_alloc.cold.116+0xb7/0x1bd
[  387.991201] lowmem_reserve[]: 0 0 3503 3503
[  387.995787]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  388.000948] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  388.028457]  ? lock_downgrade+0x900/0x900
[  388.032753] lowmem_reserve[]: 0 0 0 0
[  388.037099]  ? trace_hardirqs_off+0xb8/0x310
[  388.041909] 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
[  388.070900]  ? trace_hardirqs_off+0xb8/0x310
[  388.075057] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  388.078896]  __alloc_pages_slowpath+0x2651/0x2de0
[  388.083263] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  388.096844]  ? warn_alloc+0x120/0x120
[  388.101214] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  388.116302]  ? print_usage_bug+0xc0/0xc0
[  388.121128] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  388.136563]  ? warn_alloc+0x120/0x120
[  388.140340] 376 total pagecache pages
[  388.149184]  ? warn_alloc+0x120/0x120
[  388.153226] 0 pages in swap cache
[  388.161800]  ? print_usage_bug+0xc0/0xc0
[  388.165575] Swap cache stats: add 0, delete 0, find 0/0
[  388.169372]  ? print_usage_bug+0xc0/0xc0
[  388.173147] Free swap  = 0kB
[  388.176603]  ? __lock_acquire+0x62f/0x4c20
[  388.180634] Total swap = 0kB
[  388.185997]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  388.190060] 1965979 pages RAM
[  388.193161]  ? should_fail+0x22d/0xd01
[  388.197384] 0 pages HighMem/MovableOnly
[  388.197393] 342854 pages reserved
[  388.200413]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  388.205914] 0 pages cma reserved
[  388.209055]  ? __lock_acquire+0x62f/0x4c20
[  388.213025] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  388.216932]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  388.220468] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  388.225462]  ? __lock_acquire+0x62f/0x4c20
[  388.228809] syz-fuzzer cpuset=/ mems_allowed=0
[  388.233075]  ? should_fail+0x22d/0xd01
[  388.267554]  ? find_held_lock+0x36/0x1c0
[  388.271630]  ? mark_held_locks+0x130/0x130
[  388.275900]  ? mark_held_locks+0x130/0x130
[  388.280162]  ? zap_class+0x640/0x640
[  388.283886]  ? zap_class+0x640/0x640
[  388.287603]  ? print_usage_bug+0xc0/0xc0
[  388.291666]  ? do_raw_spin_unlock+0xa7/0x330
[  388.296078]  ? zap_class+0x640/0x640
[  388.299792]  ? print_usage_bug+0xc0/0xc0
[  388.303852]  ? wq_watchdog_touch+0x9c/0xfe
[  388.308097]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.314161]  ? check_preemption_disabled+0x48/0x280
[  388.319191]  ? __lock_is_held+0xb5/0x140
[  388.323260]  __alloc_pages_nodemask+0xad8/0xea0
[  388.327931]  ? zap_class+0x640/0x640
[  388.331652]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  388.336678]  ? find_held_lock+0x36/0x1c0
[  388.340781]  ? ____cache_alloc_node+0x1c7/0x1e0
[  388.345483]  ? lock_downgrade+0x900/0x900
[  388.349638]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.355179]  cache_grow_begin+0xa5/0x8c0
[  388.359243]  ? do_raw_spin_unlock+0xa7/0x330
[  388.363664]  fallback_alloc+0x204/0x2e0
[  388.367659]  ____cache_alloc_node+0x1c7/0x1e0
[  388.372163]  kmem_cache_alloc_node+0xe3/0x730
[  388.376661]  ? ipv6_get_ifaddr+0x42e/0x620
[  388.380910]  __alloc_skb+0x119/0x770
[  388.384622]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  388.389904]  ? netdev_alloc_frag+0x1f0/0x1f0
[  388.394327]  ? lock_downgrade+0x900/0x900
[  388.398499]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.404042]  ? refcount_sub_and_test_checked+0x203/0x310
[  388.409501]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  388.414957]  ? addrconf_rs_timer+0x690/0x690
[  388.419396]  ndisc_alloc_skb+0x144/0x340
[  388.423463]  ndisc_send_rs+0x331/0x6e0
[  388.427359]  addrconf_rs_timer+0x314/0x690
[  388.431601]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  388.435849]  call_timer_fn+0x272/0x920
[  388.439753]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  388.443989]  ? process_timeout+0x40/0x40
[  388.448066]  ? __run_timers+0x7da/0xc70
[  388.452049]  ? _raw_spin_unlock_irq+0x27/0x80
[  388.456556]  ? _raw_spin_unlock_irq+0x27/0x80
[  388.461054]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  388.465292]  ? lockdep_hardirqs_on+0x296/0x5b0
[  388.469885]  ? trace_hardirqs_on+0xbd/0x310
[  388.474212]  ? kasan_check_read+0x11/0x20
[  388.478360]  ? __run_timers+0x7da/0xc70
[  388.482339]  ? trace_hardirqs_off_caller+0x310/0x310
[  388.487447]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  388.491716]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  388.495944]  __run_timers+0x7e5/0xc70
[  388.499769]  ? timer_fixup_init+0x70/0x70
[  388.503934]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  388.508965]  ? zap_class+0x640/0x640
[  388.512688]  ? enqueue_hrtimer+0x1a5/0x560
[  388.516943]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  388.522159]  ? find_held_lock+0x36/0x1c0
[  388.526223]  ? zap_class+0x640/0x640
[  388.529943]  ? pvclock_read_flags+0x160/0x160
[  388.534446]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.539987]  ? check_preemption_disabled+0x48/0x280
[  388.545028]  ? __lock_is_held+0xb5/0x140
[  388.549092]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.554628]  ? check_preemption_disabled+0x48/0x280
[  388.559648]  run_timer_softirq+0x52/0xb0
[  388.563722]  ? rcu_read_lock_sched_held+0x14f/0x180
[  388.568740]  __do_softirq+0x308/0xb7e
[  388.572546]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  388.577046]  ? lock_downgrade+0x900/0x900
[  388.581199]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  388.586313]  ? pvclock_read_flags+0x160/0x160
[  388.590842]  ? lapic_next_event+0x5a/0x90
[  388.594997]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.600548]  ? kvm_clock_read+0x18/0x30
[  388.604522]  ? kvm_sched_clock_read+0x9/0x20
[  388.608932]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.614474]  ? check_preemption_disabled+0x48/0x280
[  388.619502]  irq_exit+0x17f/0x1c0
[  388.622956]  smp_apic_timer_interrupt+0x1cb/0x760
[  388.627797]  ? smp_reschedule_interrupt+0x109/0x650
[  388.632816]  ? smp_call_function_single_interrupt+0x650/0x650
[  388.638719]  ? interrupt_entry+0xb5/0xc0
[  388.642792]  ? trace_hardirqs_off_caller+0xbb/0x310
[  388.647805]  ? trace_hardirqs_off_caller+0xbb/0x310
[  388.652859]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  388.657724]  ? trace_hardirqs_on_caller+0x310/0x310
[  388.662792]  ? trace_hardirqs_on_caller+0x310/0x310
[  388.667836]  ? task_prio+0x50/0x50
[  388.671377]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.676917]  ? check_preemption_disabled+0x48/0x280
[  388.681940]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  388.686789]  apic_timer_interrupt+0xf/0x20
[  388.691025]  </IRQ>
[  388.693266] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  388.698198] 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 42 f3
[  388.717095] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  388.724804] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  388.732087] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  388.739355] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  388.746620] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  388.753907] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  388.761210]  skb_clone+0x1bb/0x500
[  388.764770]  ? skb_split+0x11e0/0x11e0
[  388.768660]  ? check_preemption_disabled+0x48/0x280
[  388.773682]  ? __this_cpu_preempt_check+0x1c/0x20
[  388.778521]  ? __bpf_redirect+0x55b/0xb60
[  388.782668]  ? __switch_to_asm+0x34/0x70
[  388.786724]  ? __switch_to_asm+0x40/0x70
[  388.790784]  bpf_clone_redirect+0xb9/0x490
[  388.795036]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  388.800056]  ? __sched_text_start+0x8/0x8
[  388.804218]  ? find_held_lock+0x36/0x1c0
[  388.808316]  ? lock_acquire+0x1ed/0x520
[  388.812305]  ? bpf_test_run+0x3cb/0x780
[  388.816280]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.821821]  ? check_preemption_disabled+0x48/0x280
[  388.826840]  ? kasan_check_read+0x11/0x20
[  388.830986]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  388.836269]  ? rcu_softirq_qs+0x20/0x20
[  388.840243]  ? preempt_schedule+0x4d/0x60
[  388.844387]  ? ___preempt_schedule+0x16/0x18
[  388.848806]  ? bpf_test_run+0x25d/0x780
[  388.852792]  ? netlink_diag_dump+0x2a0/0x2a0
[  388.857205]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  388.862756]  ? bpf_test_init.isra.10+0x70/0x100
[  388.867441]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  388.872204]  ? bpf_test_finish.isra.9+0x260/0x260
[  388.877047]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  388.882582]  ? fput+0x130/0x1a0
[  388.885864]  ? __bpf_prog_get+0x9b/0x290
[  388.889936]  ? bpf_test_finish.isra.9+0x260/0x260
[  388.894779]  ? bpf_prog_test_run+0x130/0x1a0
[  388.899195]  ? __x64_sys_bpf+0x3db/0x520
[  388.903255]  ? bpf_prog_get+0x20/0x20
[  388.907083]  ? do_syscall_64+0x1b9/0x820
[  388.911144]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  388.916512]  ? syscall_return_slowpath+0x5e0/0x5e0
[  388.921455]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  388.926331]  ? trace_hardirqs_on_caller+0x310/0x310
[  388.931362]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  388.936380]  ? prepare_exit_to_usermode+0x291/0x3b0
[  388.941402]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  388.946255]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  388.951636] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  388.951704] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  388.958648] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  388.958653] Call Trace:
[  388.958659]  <IRQ>
[  388.958678]  dump_stack+0x244/0x39d
[  388.958696]  ? dump_stack_print_info.cold.1+0x20/0x20
[  388.965217] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  388.974520]  warn_alloc.cold.116+0xb7/0x1bd
[  388.977075] syz-executor0 cpuset=syz0 mems_allowed=0
[  388.979214]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  389.012673]  ? lock_downgrade+0x900/0x900
[  389.016840]  ? trace_hardirqs_off+0xb8/0x310
[  389.021255]  ? trace_hardirqs_off+0xb8/0x310
[  389.025672]  __alloc_pages_slowpath+0x2651/0x2de0
[  389.030560]  ? warn_alloc+0x120/0x120
[  389.034375]  ? print_usage_bug+0xc0/0xc0
[  389.038444]  ? warn_alloc+0x120/0x120
[  389.042294]  ? warn_alloc+0x120/0x120
[  389.046100]  ? print_usage_bug+0xc0/0xc0
[  389.050166]  ? kvm_clock_read+0x18/0x30
[  389.054142]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  389.059156]  ? print_usage_bug+0xc0/0xc0
[  389.063217]  ? __lock_acquire+0x62f/0x4c20
[  389.067471]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  389.073012]  ? should_fail+0x22d/0xd01
[  389.076910]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  389.082194]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  389.087331]  ? __lock_acquire+0x62f/0x4c20
[  389.091573]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  389.096674]  ? __lock_acquire+0x62f/0x4c20
[  389.100907]  ? should_fail+0x22d/0xd01
[  389.104792]  ? rcu_irq_exit+0x1a2/0x390
[  389.108773]  ? mark_held_locks+0x130/0x130
[  389.113012]  ? mark_held_locks+0x130/0x130
[  389.117294]  ? mark_held_locks+0xc7/0x130
[  389.121442]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  389.126462]  ? zap_class+0x640/0x640
[  389.130194]  ? print_usage_bug+0xc0/0xc0
[  389.134256]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.139794]  ? check_preemption_disabled+0x48/0x280
[  389.144817]  ? __lock_is_held+0xb5/0x140
[  389.148894]  __alloc_pages_nodemask+0xad8/0xea0
[  389.153560]  ? zap_class+0x640/0x640
[  389.157282]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  389.162309]  ? find_held_lock+0x36/0x1c0
[  389.166396]  ? ____cache_alloc_node+0x1c7/0x1e0
[  389.171067]  ? lock_downgrade+0x900/0x900
[  389.175224]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.180907]  cache_grow_begin+0xa5/0x8c0
[  389.184982]  ? do_raw_spin_unlock+0xa7/0x330
[  389.189408]  fallback_alloc+0x204/0x2e0
[  389.193399]  ____cache_alloc_node+0x1c7/0x1e0
[  389.197899]  kmem_cache_alloc_node+0xe3/0x730
[  389.202403]  ? ipv6_get_ifaddr+0x42e/0x620
[  389.206646]  __alloc_skb+0x119/0x770
[  389.210356]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  389.215643]  ? netdev_alloc_frag+0x1f0/0x1f0
[  389.220054]  ? lock_downgrade+0x900/0x900
[  389.224209]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.229748]  ? refcount_sub_and_test_checked+0x203/0x310
[  389.235200]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  389.240649]  ? addrconf_rs_timer+0x690/0x690
[  389.245086]  ndisc_alloc_skb+0x144/0x340
[  389.249156]  ndisc_send_rs+0x331/0x6e0
[  389.253054]  addrconf_rs_timer+0x314/0x690
[  389.257295]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  389.261538]  call_timer_fn+0x272/0x920
[  389.265433]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  389.269672]  ? process_timeout+0x40/0x40
[  389.273741]  ? mark_held_locks+0xc7/0x130
[  389.277890]  ? _raw_spin_unlock_irq+0x27/0x80
[  389.282395]  ? _raw_spin_unlock_irq+0x27/0x80
[  389.286889]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  389.291125]  ? lockdep_hardirqs_on+0x296/0x5b0
[  389.295708]  ? trace_hardirqs_on+0xbd/0x310
[  389.300050]  ? kasan_check_read+0x11/0x20
[  389.304200]  ? __run_timers+0x7da/0xc70
[  389.308179]  ? trace_hardirqs_off_caller+0x310/0x310
[  389.313286]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  389.317524]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  389.321759]  __run_timers+0x7e5/0xc70
[  389.325567]  ? timer_fixup_init+0x70/0x70
[  389.329716]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  389.334738]  ? zap_class+0x640/0x640
[  389.338469]  ? print_usage_bug+0xc0/0xc0
[  389.342533]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  389.347734]  ? find_held_lock+0x36/0x1c0
[  389.351799]  ? zap_class+0x640/0x640
[  389.355522]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.361060]  ? check_preemption_disabled+0x48/0x280
[  389.366119]  ? __lock_is_held+0xb5/0x140
[  389.370196]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.375754]  ? check_preemption_disabled+0x48/0x280
[  389.380775]  run_timer_softirq+0x52/0xb0
[  389.384836]  ? rcu_read_lock_sched_held+0x14f/0x180
[  389.389868]  __do_softirq+0x308/0xb7e
[  389.393676]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  389.398193]  ? lock_downgrade+0x900/0x900
[  389.402350]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  389.407469]  ? pvclock_read_flags+0x160/0x160
[  389.411982]  ? lapic_next_event+0x5a/0x90
[  389.416139]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.421695]  ? kvm_clock_read+0x18/0x30
[  389.425670]  ? kvm_sched_clock_read+0x9/0x20
[  389.430079]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  389.435629]  ? check_preemption_disabled+0x48/0x280
[  389.440655]  irq_exit+0x17f/0x1c0
[  389.444113]  smp_apic_timer_interrupt+0x1cb/0x760
[  389.448957]  ? smp_reschedule_interrupt+0x109/0x650
[  389.453971]  ? smp_call_function_single_interrupt+0x650/0x650
[  389.459851]  ? interrupt_entry+0xb5/0xc0
[  389.463910]  ? trace_hardirqs_off_caller+0xbb/0x310
[  389.468939]  ? trace_hardirqs_off_caller+0xbb/0x310
[  389.473958]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  389.478815]  ? trace_hardirqs_on_caller+0x310/0x310
[  389.483829]  ? trace_hardirqs_on_caller+0x310/0x310
[  389.488857]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  389.493714]  apic_timer_interrupt+0xf/0x20
[  389.497957]  </IRQ>
[  389.500196] RIP: 0010:dump_stack+0x358/0x39d
[  389.504605] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  389.523504] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  389.531211] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  389.538481] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  389.545745] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  389.553007] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  389.560281] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  389.567568]  ? dump_stack+0x34f/0x39d
[  389.571387]  ? dump_stack_print_info.cold.1+0x20/0x20
[  389.576577]  ? mark_held_locks+0x130/0x130
[  389.580810]  ? mark_held_locks+0x130/0x130
[  389.585057]  dump_header+0x27b/0xf72
[  389.588781]  ? pagefault_out_of_memory+0x197/0x197
[  389.593734]  ? __lock_acquire+0x62f/0x4c20
[  389.597973]  ? percpu_ref_get_many+0x240/0x240
[  389.602560]  ? print_usage_bug+0xc0/0xc0
[  389.606626]  ? zap_class+0x640/0x640
[  389.610341]  ? print_usage_bug+0xc0/0xc0
[  389.614406]  ? print_usage_bug+0xc0/0xc0
[  389.618469]  ? zap_class+0x640/0x640
[  389.622188]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.627736]  ? find_held_lock+0x36/0x1c0
[  389.631854]  ? mark_held_locks+0xc7/0x130
[  389.636004]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  389.641112]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  389.646232]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  389.650810]  ? trace_hardirqs_on+0xbd/0x310
[  389.655126]  ? kasan_check_read+0x11/0x20
[  389.659271]  ? ___ratelimit+0x3b4/0x672
[  389.663242]  ? trace_hardirqs_off_caller+0x310/0x310
[  389.668340]  ? trace_hardirqs_on+0x310/0x310
[  389.672745]  ? lock_downgrade+0x900/0x900
[  389.676907]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  389.682008]  ? ___ratelimit+0x3b9/0x672
[  389.686001]  ? idr_get_free+0xf70/0xf70
[  389.689980]  ? find_held_lock+0x36/0x1c0
[  389.694071]  oom_kill_process.cold.27+0x10/0x903
[  389.698826]  ? zap_class+0x640/0x640
[  389.702535]  ? check_preemption_disabled+0x48/0x280
[  389.707564]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  389.712489]  ? kasan_check_read+0x11/0x20
[  389.716636]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  389.721916]  ? oom_evaluate_task+0x540/0x540
[  389.726347]  ? find_held_lock+0x36/0x1c0
[  389.730418]  ? out_of_memory+0x974/0x1430
[  389.734583]  ? lock_downgrade+0x900/0x900
[  389.738766]  ? check_preemption_disabled+0x48/0x280
[  389.743797]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  389.748724]  ? kasan_check_read+0x11/0x20
[  389.752871]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  389.758164]  ? rcu_softirq_qs+0x20/0x20
[  389.762145]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  389.767678]  ? oom_evaluate_task+0x302/0x540
[  389.772105]  out_of_memory+0xa84/0x1430
[  389.776086]  ? oom_killer_disable+0x3a0/0x3a0
[  389.780583]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  389.785516]  ? __ww_mutex_check_waiters+0x160/0x160
[  389.790548]  __alloc_pages_slowpath+0x232c/0x2de0
[  389.795427]  ? warn_alloc+0x120/0x120
[  389.799224]  ? mark_held_locks+0x130/0x130
[  389.803482]  ? find_get_entry+0xaae/0x1120
[  389.807726]  ? filemap_map_pages+0x1a20/0x1a20
[  389.812317]  ? zap_class+0x640/0x640
[  389.816041]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.821580]  ? check_preemption_disabled+0x48/0x280
[  389.826596]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  389.832151]  ? should_fail+0x22d/0xd01
[  389.836060]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  389.841164]  ? zap_class+0x640/0x640
[  389.844904]  ? __lock_is_held+0xb5/0x140
[  389.848987]  ? mark_held_locks+0x130/0x130
[  389.853231]  ? lock_release+0xa00/0xa00
[  389.857206]  ? perf_trace_sched_process_exec+0x860/0x860
[  389.862653]  ? xa_load+0x2ba/0x460
[  389.866196]  ? lock_downgrade+0x900/0x900
[  389.870357]  ? __might_sleep+0x95/0x190
[  389.874355]  __alloc_pages_nodemask+0xad8/0xea0
[  389.879071]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  389.884104]  ? __page_cache_alloc+0x191/0x5c0
[  389.888596]  ? xa_load+0x2e1/0x460
[  389.892136]  ? xa_clear_mark+0x40/0x40
[  389.896037]  ? zap_class+0x640/0x640
[  389.899759]  ? zap_class+0x640/0x640
[  389.903477]  ? zap_class+0x640/0x640
[  389.907192]  ? __do_page_cache_readahead+0x663/0x810
[  389.912300]  ? find_held_lock+0x36/0x1c0
[  389.916368]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  389.921972]  alloc_pages_current+0x173/0x350
[  389.926393]  __page_cache_alloc+0x38c/0x5c0
[  389.930713]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  389.935639]  ? kasan_check_read+0x11/0x20
[  389.939785]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  389.945081]  ? generic_perform_write+0x6a0/0x6a0
[  389.949834]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  389.955369]  ? check_preemption_disabled+0x48/0x280
[  389.960401]  filemap_fault+0x1595/0x25f0
[  389.964488]  ? __lock_page_or_retry+0xa00/0xa00
[  389.969169]  ? mark_held_locks+0x130/0x130
[  389.973437]  ? filemap_map_pages+0xd6b/0x1a20
[  389.977929]  ? lock_downgrade+0x900/0x900
[  389.982075]  ? check_preemption_disabled+0x48/0x280
[  389.987091]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  389.992027]  ? kasan_check_read+0x11/0x20
[  389.996174]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  390.001482]  ? rcu_softirq_qs+0x20/0x20
[  390.005482]  ? filemap_map_pages+0xd92/0x1a20
[  390.009989]  ? find_get_entries_tag+0x1400/0x1400
[  390.014837]  ? debug_object_destroy+0x2b0/0x2b0
[  390.019503]  ? lock_pi_update_atomic+0x150/0x150
[  390.024254]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.029801]  ? lock_acquire+0x1ed/0x520
[  390.033770]  ? ext4_filemap_fault+0x7a/0xad
[  390.038095]  ? lock_release+0xa00/0xa00
[  390.042069]  ? perf_trace_sched_process_exec+0x860/0x860
[  390.047519]  ? print_usage_bug+0xc0/0xc0
[  390.051628]  ? print_usage_bug+0xc0/0xc0
[  390.055701]  ? down_read+0x8d/0x120
[  390.059335]  ? ext4_filemap_fault+0x7a/0xad
[  390.063655]  ? __down_interruptible+0x700/0x700
[  390.068335]  ext4_filemap_fault+0x82/0xad
[  390.072482]  __do_fault+0x100/0x6b0
[  390.076109]  ? find_held_lock+0x36/0x1c0
[  390.080175]  ? pmd_devmap_trans_unstable+0x220/0x220
[  390.085278]  ? mark_held_locks+0x130/0x130
[  390.089515]  ? mark_held_locks+0x130/0x130
[  390.093747]  ? debug_smp_processor_id+0x1c/0x20
[  390.098416]  ? perf_trace_lock+0x14d/0x7a0
[  390.102655]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  390.108197]  __handle_mm_fault+0x3ea0/0x5be0
[  390.112616]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  390.117459]  ? lock_is_held_type+0x210/0x210
[  390.121871]  ? __switch_to_asm+0x34/0x70
[  390.125949]  ? __switch_to_asm+0x34/0x70
[  390.130048]  ? zap_class+0x640/0x640
[  390.133760]  ? zap_class+0x640/0x640
[  390.137470]  ? __x64_sys_futex+0x53e/0x6a0
[  390.141707]  ? find_held_lock+0x36/0x1c0
[  390.145777]  ? handle_mm_fault+0x42a/0xc70
[  390.150013]  ? lock_downgrade+0x900/0x900
[  390.154168]  ? check_preemption_disabled+0x48/0x280
[  390.159187]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  390.164115]  ? kasan_check_read+0x11/0x20
[  390.168260]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  390.173535]  ? rcu_softirq_qs+0x20/0x20
[  390.177512]  ? trace_hardirqs_off_caller+0x310/0x310
[  390.182618]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  390.188173]  ? check_preemption_disabled+0x48/0x280
[  390.193198]  handle_mm_fault+0x54f/0xc70
[  390.197261]  ? __handle_mm_fault+0x5be0/0x5be0
[  390.201864]  ? find_vma+0x34/0x190
[  390.205415]  __do_page_fault+0x5e8/0xe60
[  390.209477]  ? trace_hardirqs_off+0xb8/0x310
[  390.213894]  do_page_fault+0xf2/0x7e0
[  390.217698]  ? vmalloc_sync_all+0x30/0x30
[  390.221846]  ? error_entry+0x70/0xd0
[  390.225558]  ? trace_hardirqs_off_caller+0xbb/0x310
[  390.230577]  ? trace_hardirqs_on_caller+0xc0/0x310
[  390.235506]  ? syscall_return_slowpath+0x5e0/0x5e0
[  390.240439]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  390.245284]  ? trace_hardirqs_on_caller+0x310/0x310
[  390.250300]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  390.255785]  ? prepare_exit_to_usermode+0x291/0x3b0
[  390.260810]  ? page_fault+0x8/0x30
[  390.264385]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  390.269258]  ? page_fault+0x8/0x30
[  390.272798]  page_fault+0x1e/0x30
[  390.276249] RIP: 0033:0x45ddf3
[  390.279453] Code: Bad RIP value.
[  390.282831] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  390.288200] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  390.295486] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  390.302751] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  390.310030] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  390.317488] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  390.324869] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  390.324875] warn_alloc_show_mem: 1 callbacks suppressed
[  390.324887] Mem-Info:
[  390.332245] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  390.337611] active_anon:45985 inactive_anon:296 isolated_anon:0
[  390.337611]  active_file:15 inactive_file:8 isolated_file:0
[  390.337611]  unevictable:0 dirty:0 writeback:0 unstable:0
[  390.337611]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  390.337611]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  390.337611]  free:13771 free_pcp:249 free_cma:0
[  390.339981] Call Trace:
[  390.349371] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  390.382869]  <IRQ>
[  390.385443] 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
[  390.413117]  dump_stack+0x244/0x39d
[  390.415237] lowmem_reserve[]: 0 2818 6321 6321
[  390.441362]  ? dump_stack_print_info.cold.1+0x20/0x20
[  390.444977] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  390.449558]  warn_alloc.cold.116+0xb7/0x1bd
[  390.454716] lowmem_reserve[]: 0 0 3503 3503
[  390.482208]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  390.486501] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  390.490817]  ? lock_downgrade+0x900/0x900
[  390.495636] lowmem_reserve[]: 0 0 0 0
[  390.524606]  ? trace_hardirqs_off+0xb8/0x310
[  390.528722] 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
[  390.532519]  ? trace_hardirqs_off+0xb8/0x310
[  390.536904] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  390.550423]  __alloc_pages_slowpath+0x2651/0x2de0
[  390.554805] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  390.569910]  ? warn_alloc+0x120/0x120
[  390.574705] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  390.590137]  ? print_usage_bug+0xc0/0xc0
[  390.593921] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  390.602754]  ? warn_alloc+0x120/0x120
[  390.606792] 376 total pagecache pages
[  390.615358]  ? warn_alloc+0x120/0x120
[  390.619138] 0 pages in swap cache
[  390.622925]  ? print_usage_bug+0xc0/0xc0
[  390.626701] Swap cache stats: add 0, delete 0, find 0/0
[  390.630176]  ? print_usage_bug+0xc0/0xc0
[  390.634214] Free swap  = 0kB
[  390.639570]  ? __lock_acquire+0x62f/0x4c20
[  390.643607] Total swap = 0kB
[  390.646622]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  390.650831] 1965979 pages RAM
[  390.653847]  ? should_fail+0x22d/0xd01
[  390.659370] 0 pages HighMem/MovableOnly
[  390.662470]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  390.666334] 342854 pages reserved
[  390.670304]  ? __lock_acquire+0x62f/0x4c20
[  390.675386] 0 pages cma reserved
[  390.678830]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  390.683115] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  390.686410]  ? __lock_acquire+0x62f/0x4c20
[  390.686426]  ? should_fail+0x22d/0xd01
[  390.691593] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  390.697997]  ? find_held_lock+0x36/0x1c0
[  390.702209] syz-fuzzer cpuset=/ mems_allowed=0
[  390.706099]  ? mark_held_locks+0x130/0x130
[  390.729159]  ? mark_held_locks+0x130/0x130
[  390.733392]  ? zap_class+0x640/0x640
[  390.737110]  ? zap_class+0x640/0x640
[  390.740824]  ? print_usage_bug+0xc0/0xc0
[  390.744903]  ? do_raw_spin_unlock+0xa7/0x330
[  390.749310]  ? zap_class+0x640/0x640
[  390.753030]  ? print_usage_bug+0xc0/0xc0
[  390.757092]  ? wq_watchdog_touch+0x9c/0xfe
[  390.761350]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.766912]  ? check_preemption_disabled+0x48/0x280
[  390.771938]  ? __lock_is_held+0xb5/0x140
[  390.776075]  __alloc_pages_nodemask+0xad8/0xea0
[  390.780778]  ? zap_class+0x640/0x640
[  390.784510]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  390.789536]  ? find_held_lock+0x36/0x1c0
[  390.793610]  ? ____cache_alloc_node+0x1c7/0x1e0
[  390.798280]  ? lock_downgrade+0x900/0x900
[  390.802467]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.808045]  cache_grow_begin+0xa5/0x8c0
[  390.812123]  ? do_raw_spin_unlock+0xa7/0x330
[  390.816537]  fallback_alloc+0x204/0x2e0
[  390.820519]  ____cache_alloc_node+0x1c7/0x1e0
[  390.825031]  kmem_cache_alloc_node+0xe3/0x730
[  390.829543]  ? ipv6_get_ifaddr+0x42e/0x620
[  390.833801]  __alloc_skb+0x119/0x770
[  390.837515]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  390.842796]  ? netdev_alloc_frag+0x1f0/0x1f0
[  390.847199]  ? lock_downgrade+0x900/0x900
[  390.851351]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.856893]  ? refcount_sub_and_test_checked+0x203/0x310
[  390.862368]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  390.867819]  ? addrconf_rs_timer+0x690/0x690
[  390.872241]  ndisc_alloc_skb+0x144/0x340
[  390.876305]  ndisc_send_rs+0x331/0x6e0
[  390.880191]  addrconf_rs_timer+0x314/0x690
[  390.884428]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.888674]  call_timer_fn+0x272/0x920
[  390.892571]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.896802]  ? process_timeout+0x40/0x40
[  390.900867]  ? __run_timers+0x7da/0xc70
[  390.904848]  ? _raw_spin_unlock_irq+0x27/0x80
[  390.909341]  ? _raw_spin_unlock_irq+0x27/0x80
[  390.913847]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.918086]  ? lockdep_hardirqs_on+0x296/0x5b0
[  390.922669]  ? trace_hardirqs_on+0xbd/0x310
[  390.926986]  ? kasan_check_read+0x11/0x20
[  390.931132]  ? __run_timers+0x7da/0xc70
[  390.935120]  ? trace_hardirqs_off_caller+0x310/0x310
[  390.940225]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.944471]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.948703]  __run_timers+0x7e5/0xc70
[  390.952511]  ? timer_fixup_init+0x70/0x70
[  390.956661]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  390.961676]  ? zap_class+0x640/0x640
[  390.965405]  ? enqueue_hrtimer+0x1a5/0x560
[  390.969644]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  390.974846]  ? find_held_lock+0x36/0x1c0
[  390.978932]  ? zap_class+0x640/0x640
[  390.982652]  ? pvclock_read_flags+0x160/0x160
[  390.987153]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.992690]  ? check_preemption_disabled+0x48/0x280
[  390.997713]  ? __lock_is_held+0xb5/0x140
[  391.001776]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.007312]  ? check_preemption_disabled+0x48/0x280
[  391.012334]  run_timer_softirq+0x52/0xb0
[  391.016408]  ? rcu_read_lock_sched_held+0x14f/0x180
[  391.021426]  __do_softirq+0x308/0xb7e
[  391.025229]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  391.029738]  ? lock_downgrade+0x900/0x900
[  391.033907]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  391.039038]  ? pvclock_read_flags+0x160/0x160
[  391.043536]  ? lapic_next_event+0x5a/0x90
[  391.047685]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.053222]  ? kvm_clock_read+0x18/0x30
[  391.057194]  ? kvm_sched_clock_read+0x9/0x20
[  391.061599]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.067135]  ? check_preemption_disabled+0x48/0x280
[  391.072161]  irq_exit+0x17f/0x1c0
[  391.075619]  smp_apic_timer_interrupt+0x1cb/0x760
[  391.080462]  ? smp_reschedule_interrupt+0x109/0x650
[  391.085500]  ? smp_call_function_single_interrupt+0x650/0x650
[  391.091381]  ? interrupt_entry+0xb5/0xc0
[  391.095449]  ? trace_hardirqs_off_caller+0xbb/0x310
[  391.100477]  ? trace_hardirqs_off_caller+0xbb/0x310
[  391.105521]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  391.110365]  ? trace_hardirqs_on_caller+0x310/0x310
[  391.115381]  ? trace_hardirqs_on_caller+0x310/0x310
[  391.120410]  ? task_prio+0x50/0x50
[  391.123954]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.129491]  ? check_preemption_disabled+0x48/0x280
[  391.134509]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  391.139360]  apic_timer_interrupt+0xf/0x20
[  391.143598]  </IRQ>
[  391.145834] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  391.150767] 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 42 f3
[  391.169664] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  391.177371] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  391.184806] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  391.192083] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  391.199348] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  391.206616] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  391.213920]  skb_clone+0x1bb/0x500
[  391.217461]  ? skb_split+0x11e0/0x11e0
[  391.221348]  ? check_preemption_disabled+0x48/0x280
[  391.226369]  ? __this_cpu_preempt_check+0x1c/0x20
[  391.231228]  ? __bpf_redirect+0x55b/0xb60
[  391.235374]  ? __switch_to_asm+0x34/0x70
[  391.239429]  ? __switch_to_asm+0x40/0x70
[  391.243539]  bpf_clone_redirect+0xb9/0x490
[  391.247800]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  391.252836]  ? __sched_text_start+0x8/0x8
[  391.257025]  ? find_held_lock+0x36/0x1c0
[  391.261098]  ? lock_acquire+0x1ed/0x520
[  391.265074]  ? bpf_test_run+0x3cb/0x780
[  391.269056]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.274597]  ? check_preemption_disabled+0x48/0x280
[  391.279619]  ? kasan_check_read+0x11/0x20
[  391.283767]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  391.289053]  ? rcu_softirq_qs+0x20/0x20
[  391.293037]  ? preempt_schedule+0x4d/0x60
[  391.297189]  ? ___preempt_schedule+0x16/0x18
[  391.301614]  ? bpf_test_run+0x25d/0x780
[  391.305604]  ? netlink_diag_dump+0x2a0/0x2a0
[  391.310014]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  391.315568]  ? bpf_test_init.isra.10+0x70/0x100
[  391.320245]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  391.325010]  ? bpf_test_finish.isra.9+0x260/0x260
[  391.329901]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  391.335442]  ? fput+0x130/0x1a0
[  391.338729]  ? __bpf_prog_get+0x9b/0x290
[  391.342792]  ? bpf_test_finish.isra.9+0x260/0x260
[  391.347652]  ? bpf_prog_test_run+0x130/0x1a0
[  391.352065]  ? __x64_sys_bpf+0x3db/0x520
[  391.356123]  ? bpf_prog_get+0x20/0x20
[  391.359947]  ? do_syscall_64+0x1b9/0x820
[  391.364005]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  391.369381]  ? syscall_return_slowpath+0x5e0/0x5e0
[  391.374318]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  391.379169]  ? trace_hardirqs_on_caller+0x310/0x310
[  391.384194]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  391.389215]  ? prepare_exit_to_usermode+0x291/0x3b0
[  391.394260]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  391.399112]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  391.404497] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  391.404565] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  391.411512] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  391.411518] Call Trace:
[  391.411524]  <IRQ>
[  391.411545]  dump_stack+0x244/0x39d
[  391.411564]  ? dump_stack_print_info.cold.1+0x20/0x20
[  391.418138] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  391.427434]  warn_alloc.cold.116+0xb7/0x1bd
[  391.429987] syz-executor0 cpuset=syz0 mems_allowed=0
[  391.432129]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  391.465613]  ? lock_downgrade+0x900/0x900
[  391.469789]  ? trace_hardirqs_off+0xb8/0x310
[  391.474204]  ? trace_hardirqs_off+0xb8/0x310
[  391.478646]  __alloc_pages_slowpath+0x2651/0x2de0
[  391.483522]  ? warn_alloc+0x120/0x120
[  391.487352]  ? print_usage_bug+0xc0/0xc0
[  391.491440]  ? warn_alloc+0x120/0x120
[  391.495244]  ? warn_alloc+0x120/0x120
[  391.499056]  ? print_usage_bug+0xc0/0xc0
[  391.503119]  ? kvm_clock_read+0x18/0x30
[  391.507099]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  391.512149]  ? print_usage_bug+0xc0/0xc0
[  391.516214]  ? __lock_acquire+0x62f/0x4c20
[  391.520471]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  391.526015]  ? should_fail+0x22d/0xd01
[  391.529913]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  391.535199]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  391.540303]  ? __lock_acquire+0x62f/0x4c20
[  391.544542]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  391.549648]  ? __lock_acquire+0x62f/0x4c20
[  391.553881]  ? should_fail+0x22d/0xd01
[  391.557764]  ? rcu_irq_exit+0x1a2/0x390
[  391.561749]  ? mark_held_locks+0x130/0x130
[  391.565987]  ? mark_held_locks+0x130/0x130
[  391.570232]  ? mark_held_locks+0xc7/0x130
[  391.574386]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  391.579413]  ? zap_class+0x640/0x640
[  391.583129]  ? print_usage_bug+0xc0/0xc0
[  391.587197]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.592736]  ? check_preemption_disabled+0x48/0x280
[  391.597778]  ? __lock_is_held+0xb5/0x140
[  391.601874]  __alloc_pages_nodemask+0xad8/0xea0
[  391.606562]  ? zap_class+0x640/0x640
[  391.610287]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  391.615318]  ? find_held_lock+0x36/0x1c0
[  391.619396]  ? ____cache_alloc_node+0x1c7/0x1e0
[  391.624068]  ? lock_downgrade+0x900/0x900
[  391.628230]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.633783]  cache_grow_begin+0xa5/0x8c0
[  391.637847]  ? do_raw_spin_unlock+0xa7/0x330
[  391.642281]  fallback_alloc+0x204/0x2e0
[  391.646296]  ____cache_alloc_node+0x1c7/0x1e0
[  391.650815]  kmem_cache_alloc_node+0xe3/0x730
[  391.655317]  ? ipv6_get_ifaddr+0x42e/0x620
[  391.659562]  __alloc_skb+0x119/0x770
[  391.663277]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  391.668561]  ? netdev_alloc_frag+0x1f0/0x1f0
[  391.672974]  ? lock_downgrade+0x900/0x900
[  391.677132]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.682670]  ? refcount_sub_and_test_checked+0x203/0x310
[  391.688142]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  391.693599]  ? addrconf_rs_timer+0x690/0x690
[  391.698031]  ndisc_alloc_skb+0x144/0x340
[  391.702152]  ndisc_send_rs+0x331/0x6e0
[  391.706085]  addrconf_rs_timer+0x314/0x690
[  391.710327]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  391.714575]  call_timer_fn+0x272/0x920
[  391.718476]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  391.722714]  ? process_timeout+0x40/0x40
[  391.726784]  ? mark_held_locks+0xc7/0x130
[  391.730935]  ? _raw_spin_unlock_irq+0x27/0x80
[  391.735427]  ? _raw_spin_unlock_irq+0x27/0x80
[  391.739921]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  391.744158]  ? lockdep_hardirqs_on+0x296/0x5b0
[  391.748744]  ? trace_hardirqs_on+0xbd/0x310
[  391.753081]  ? kasan_check_read+0x11/0x20
[  391.757229]  ? __run_timers+0x7da/0xc70
[  391.761204]  ? trace_hardirqs_off_caller+0x310/0x310
[  391.766313]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  391.770559]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  391.774793]  __run_timers+0x7e5/0xc70
[  391.778608]  ? timer_fixup_init+0x70/0x70
[  391.782763]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  391.787795]  ? zap_class+0x640/0x640
[  391.791516]  ? print_usage_bug+0xc0/0xc0
[  391.795581]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  391.800785]  ? find_held_lock+0x36/0x1c0
[  391.804854]  ? zap_class+0x640/0x640
[  391.808592]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.814135]  ? check_preemption_disabled+0x48/0x280
[  391.819167]  ? __lock_is_held+0xb5/0x140
[  391.823238]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.828777]  ? check_preemption_disabled+0x48/0x280
[  391.833805]  run_timer_softirq+0x52/0xb0
[  391.837873]  ? rcu_read_lock_sched_held+0x14f/0x180
[  391.842892]  __do_softirq+0x308/0xb7e
[  391.846701]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  391.851196]  ? lock_downgrade+0x900/0x900
[  391.855356]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  391.860474]  ? pvclock_read_flags+0x160/0x160
[  391.864972]  ? lapic_next_event+0x5a/0x90
[  391.869127]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.874698]  ? kvm_clock_read+0x18/0x30
[  391.878677]  ? kvm_sched_clock_read+0x9/0x20
[  391.883089]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  391.888636]  ? check_preemption_disabled+0x48/0x280
[  391.893663]  irq_exit+0x17f/0x1c0
[  391.897148]  smp_apic_timer_interrupt+0x1cb/0x760
[  391.902032]  ? smp_reschedule_interrupt+0x109/0x650
[  391.907054]  ? smp_call_function_single_interrupt+0x650/0x650
[  391.912955]  ? interrupt_entry+0xb5/0xc0
[  391.917055]  ? trace_hardirqs_off_caller+0xbb/0x310
[  391.922095]  ? trace_hardirqs_off_caller+0xbb/0x310
[  391.927142]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  391.932006]  ? trace_hardirqs_on_caller+0x310/0x310
[  391.937050]  ? trace_hardirqs_on_caller+0x310/0x310
[  391.942123]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  391.946991]  apic_timer_interrupt+0xf/0x20
[  391.951226]  </IRQ>
[  391.953475] RIP: 0010:dump_stack+0x358/0x39d
[  391.957882] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  391.976792] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  391.984510] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  391.991798] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  391.999097] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  392.006391] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  392.013679] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  392.020988]  ? dump_stack+0x34f/0x39d
[  392.024811]  ? dump_stack_print_info.cold.1+0x20/0x20
[  392.030006]  ? mark_held_locks+0x130/0x130
[  392.034252]  ? mark_held_locks+0x130/0x130
[  392.038495]  dump_header+0x27b/0xf72
[  392.042229]  ? pagefault_out_of_memory+0x197/0x197
[  392.047171]  ? __lock_acquire+0x62f/0x4c20
[  392.051416]  ? percpu_ref_get_many+0x240/0x240
[  392.056008]  ? print_usage_bug+0xc0/0xc0
[  392.060089]  ? zap_class+0x640/0x640
[  392.063808]  ? print_usage_bug+0xc0/0xc0
[  392.067873]  ? print_usage_bug+0xc0/0xc0
[  392.071936]  ? zap_class+0x640/0x640
[  392.075666]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.081243]  ? find_held_lock+0x36/0x1c0
[  392.085317]  ? mark_held_locks+0xc7/0x130
[  392.089478]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  392.094580]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  392.099686]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  392.104277]  ? trace_hardirqs_on+0xbd/0x310
[  392.108604]  ? kasan_check_read+0x11/0x20
[  392.112770]  ? ___ratelimit+0x3b4/0x672
[  392.116766]  ? trace_hardirqs_off_caller+0x310/0x310
[  392.121880]  ? trace_hardirqs_on+0x310/0x310
[  392.126320]  ? lock_downgrade+0x900/0x900
[  392.130480]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  392.135585]  ? ___ratelimit+0x3b9/0x672
[  392.139579]  ? idr_get_free+0xf70/0xf70
[  392.143569]  ? find_held_lock+0x36/0x1c0
[  392.147663]  oom_kill_process.cold.27+0x10/0x903
[  392.152425]  ? zap_class+0x640/0x640
[  392.156146]  ? check_preemption_disabled+0x48/0x280
[  392.161167]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  392.166099]  ? kasan_check_read+0x11/0x20
[  392.170266]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  392.175550]  ? oom_evaluate_task+0x540/0x540
[  392.179981]  ? find_held_lock+0x36/0x1c0
[  392.184060]  ? out_of_memory+0x974/0x1430
[  392.188216]  ? lock_downgrade+0x900/0x900
[  392.192368]  ? check_preemption_disabled+0x48/0x280
[  392.197400]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  392.202333]  ? kasan_check_read+0x11/0x20
[  392.206498]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  392.211778]  ? rcu_softirq_qs+0x20/0x20
[  392.215765]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  392.221303]  ? oom_evaluate_task+0x302/0x540
[  392.225734]  out_of_memory+0xa84/0x1430
[  392.229737]  ? oom_killer_disable+0x3a0/0x3a0
[  392.234234]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  392.239169]  ? __ww_mutex_check_waiters+0x160/0x160
[  392.244202]  __alloc_pages_slowpath+0x232c/0x2de0
[  392.249095]  ? warn_alloc+0x120/0x120
[  392.252899]  ? mark_held_locks+0x130/0x130
[  392.257144]  ? find_get_entry+0xaae/0x1120
[  392.261395]  ? filemap_map_pages+0x1a20/0x1a20
[  392.265983]  ? zap_class+0x640/0x640
[  392.269740]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.275285]  ? check_preemption_disabled+0x48/0x280
[  392.280305]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  392.285863]  ? should_fail+0x22d/0xd01
[  392.289759]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  392.294879]  ? zap_class+0x640/0x640
[  392.298621]  ? __lock_is_held+0xb5/0x140
[  392.302689]  ? mark_held_locks+0x130/0x130
[  392.306926]  ? lock_release+0xa00/0xa00
[  392.310907]  ? perf_trace_sched_process_exec+0x860/0x860
[  392.316363]  ? xa_load+0x2ba/0x460
[  392.319918]  ? lock_downgrade+0x900/0x900
[  392.324082]  ? __might_sleep+0x95/0x190
[  392.328081]  __alloc_pages_nodemask+0xad8/0xea0
[  392.332805]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  392.337823]  ? __page_cache_alloc+0x191/0x5c0
[  392.342316]  ? xa_load+0x2e1/0x460
[  392.345860]  ? xa_clear_mark+0x40/0x40
[  392.349748]  ? zap_class+0x640/0x640
[  392.353487]  ? zap_class+0x640/0x640
[  392.357204]  ? zap_class+0x640/0x640
[  392.360917]  ? __do_page_cache_readahead+0x663/0x810
[  392.366037]  ? find_held_lock+0x36/0x1c0
[  392.370120]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  392.375671]  alloc_pages_current+0x173/0x350
[  392.380092]  __page_cache_alloc+0x38c/0x5c0
[  392.384421]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  392.389356]  ? kasan_check_read+0x11/0x20
[  392.393513]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  392.398798]  ? generic_perform_write+0x6a0/0x6a0
[  392.403557]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  392.409098]  ? check_preemption_disabled+0x48/0x280
[  392.414137]  filemap_fault+0x1595/0x25f0
[  392.418213]  ? __lock_page_or_retry+0xa00/0xa00
[  392.422888]  ? mark_held_locks+0x130/0x130
[  392.427139]  ? filemap_map_pages+0xd6b/0x1a20
[  392.431639]  ? lock_downgrade+0x900/0x900
[  392.435788]  ? check_preemption_disabled+0x48/0x280
[  392.440810]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  392.445754]  ? kasan_check_read+0x11/0x20
[  392.449947]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  392.455238]  ? rcu_softirq_qs+0x20/0x20
[  392.459228]  ? filemap_map_pages+0xd92/0x1a20
[  392.463780]  ? find_get_entries_tag+0x1400/0x1400
[  392.468654]  ? debug_object_destroy+0x2b0/0x2b0
[  392.473330]  ? lock_pi_update_atomic+0x150/0x150
[  392.478089]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.483642]  ? lock_acquire+0x1ed/0x520
[  392.487621]  ? ext4_filemap_fault+0x7a/0xad
[  392.491949]  ? lock_release+0xa00/0xa00
[  392.495923]  ? perf_trace_sched_process_exec+0x860/0x860
[  392.501400]  ? print_usage_bug+0xc0/0xc0
[  392.505468]  ? print_usage_bug+0xc0/0xc0
[  392.509540]  ? down_read+0x8d/0x120
[  392.513165]  ? ext4_filemap_fault+0x7a/0xad
[  392.517490]  ? __down_interruptible+0x700/0x700
[  392.522174]  ext4_filemap_fault+0x82/0xad
[  392.526331]  __do_fault+0x100/0x6b0
[  392.529960]  ? find_held_lock+0x36/0x1c0
[  392.534035]  ? pmd_devmap_trans_unstable+0x220/0x220
[  392.539187]  ? mark_held_locks+0x130/0x130
[  392.543424]  ? mark_held_locks+0x130/0x130
[  392.547667]  ? debug_smp_processor_id+0x1c/0x20
[  392.552340]  ? perf_trace_lock+0x14d/0x7a0
[  392.556586]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  392.562129]  __handle_mm_fault+0x3ea0/0x5be0
[  392.566548]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  392.571396]  ? lock_is_held_type+0x210/0x210
[  392.575818]  ? __switch_to_asm+0x34/0x70
[  392.579910]  ? __switch_to_asm+0x34/0x70
[  392.583989]  ? zap_class+0x640/0x640
[  392.587709]  ? zap_class+0x640/0x640
[  392.591424]  ? __x64_sys_futex+0x53e/0x6a0
[  392.595733]  ? find_held_lock+0x36/0x1c0
[  392.599824]  ? handle_mm_fault+0x42a/0xc70
[  392.604099]  ? lock_downgrade+0x900/0x900
[  392.608249]  ? check_preemption_disabled+0x48/0x280
[  392.613271]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  392.618201]  ? kasan_check_read+0x11/0x20
[  392.622385]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  392.627676]  ? rcu_softirq_qs+0x20/0x20
[  392.631652]  ? trace_hardirqs_off_caller+0x310/0x310
[  392.636762]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  392.642302]  ? check_preemption_disabled+0x48/0x280
[  392.647328]  handle_mm_fault+0x54f/0xc70
[  392.651400]  ? __handle_mm_fault+0x5be0/0x5be0
[  392.656007]  ? find_vma+0x34/0x190
[  392.659579]  __do_page_fault+0x5e8/0xe60
[  392.663641]  ? trace_hardirqs_off+0xb8/0x310
[  392.668074]  do_page_fault+0xf2/0x7e0
[  392.671881]  ? vmalloc_sync_all+0x30/0x30
[  392.676040]  ? error_entry+0x70/0xd0
[  392.679759]  ? trace_hardirqs_off_caller+0xbb/0x310
[  392.684780]  ? trace_hardirqs_on_caller+0xc0/0x310
[  392.689712]  ? syscall_return_slowpath+0x5e0/0x5e0
[  392.694645]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  392.699495]  ? trace_hardirqs_on_caller+0x310/0x310
[  392.704519]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  392.709978]  ? prepare_exit_to_usermode+0x291/0x3b0
[  392.714994]  ? page_fault+0x8/0x30
[  392.718558]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  392.723419]  ? page_fault+0x8/0x30
[  392.726989]  page_fault+0x1e/0x30
[  392.730492] RIP: 0033:0x45ddf3
[  392.733712] Code: Bad RIP value.
[  392.737073] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  392.742432] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  392.749703] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  392.756975] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  392.764251] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  392.771556] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  392.778873] warn_alloc_show_mem: 1 callbacks suppressed
[  392.778890] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  392.778892] Mem-Info:
[  392.778939] active_anon:45985 inactive_anon:296 isolated_anon:0
[  392.778939]  active_file:15 inactive_file:8 isolated_file:0
[  392.778939]  unevictable:0 dirty:0 writeback:0 unstable:0
[  392.778939]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  392.778939]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  392.778939]  free:13771 free_pcp:249 free_cma:0
[  392.784303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  392.784312] Call Trace:
[  392.791685] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  392.794084]  <IRQ>
[  392.826872] 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
[  392.836250]  dump_stack+0x244/0x39d
[  392.838807] lowmem_reserve[]: 0 2818 6321 6321
[  392.866498]  ? dump_stack_print_info.cold.1+0x20/0x20
[  392.868626] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  392.894748]  warn_alloc.cold.116+0xb7/0x1bd
[  392.898365] lowmem_reserve[]: 0 0 3503 3503
[  392.902964]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  392.908126] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  392.935660]  ? lock_downgrade+0x900/0x900
[  392.939962] lowmem_reserve[]: 0 0 0 0
[  392.944290]  ? trace_hardirqs_off+0xb8/0x310
[  392.949101] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  392.978089]  ? trace_hardirqs_off+0xb8/0x310
[  392.982213] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  392.986026]  __alloc_pages_slowpath+0x2651/0x2de0
[  392.990402] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  393.003953]  ? warn_alloc+0x120/0x120
[  393.008332] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  393.023423]  ? print_usage_bug+0xc0/0xc0
[  393.028253] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  393.043688]  ? warn_alloc+0x120/0x120
[  393.047467] 376 total pagecache pages
[  393.056323]  ? warn_alloc+0x120/0x120
[  393.060367] 0 pages in swap cache
[  393.068967]  ? print_usage_bug+0xc0/0xc0
[  393.072789] Swap cache stats: add 0, delete 0, find 0/0
[  393.076598]  ? kvm_clock_read+0x18/0x30
[  393.080401] Free swap  = 0kB
[  393.083853]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  393.087876] Total swap = 0kB
[  393.087889] 1965979 pages RAM
[  393.093257]  ? print_usage_bug+0xc0/0xc0
[  393.097206] 0 pages HighMem/MovableOnly
[  393.100238]  ? __lock_acquire+0x62f/0x4c20
[  393.105228] 342854 pages reserved
[  393.108253]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  393.111325] 0 pages cma reserved
[  393.115385]  ? should_fail+0x22d/0xd01
[  393.119441] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  393.123649]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  393.123670]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  393.127156] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  393.132632]  ? __lock_acquire+0x62f/0x4c20
[  393.135973] syz-fuzzer cpuset=/ mems_allowed=0
[  393.139874]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  393.181195]  ? __lock_acquire+0x62f/0x4c20
[  393.185438]  ? should_fail+0x22d/0xd01
[  393.189325]  ? rcu_irq_exit+0x1a2/0x390
[  393.193315]  ? mark_held_locks+0x130/0x130
[  393.197563]  ? mark_held_locks+0x130/0x130
[  393.201809]  ? mark_held_locks+0xc7/0x130
[  393.206027]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  393.211066]  ? zap_class+0x640/0x640
[  393.214787]  ? print_usage_bug+0xc0/0xc0
[  393.218856]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.224401]  ? check_preemption_disabled+0x48/0x280
[  393.229434]  ? __lock_is_held+0xb5/0x140
[  393.233506]  __alloc_pages_nodemask+0xad8/0xea0
[  393.238179]  ? zap_class+0x640/0x640
[  393.241908]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  393.246942]  ? find_held_lock+0x36/0x1c0
[  393.251025]  ? ____cache_alloc_node+0x1c7/0x1e0
[  393.255701]  ? lock_downgrade+0x900/0x900
[  393.259863]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.265418]  cache_grow_begin+0xa5/0x8c0
[  393.269489]  ? do_raw_spin_unlock+0xa7/0x330
[  393.273917]  fallback_alloc+0x204/0x2e0
[  393.277913]  ____cache_alloc_node+0x1c7/0x1e0
[  393.282424]  kmem_cache_alloc_node+0xe3/0x730
[  393.286923]  ? ipv6_get_ifaddr+0x42e/0x620
[  393.291173]  __alloc_skb+0x119/0x770
[  393.294898]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  393.300188]  ? netdev_alloc_frag+0x1f0/0x1f0
[  393.304601]  ? lock_downgrade+0x900/0x900
[  393.308762]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.314304]  ? refcount_sub_and_test_checked+0x203/0x310
[  393.319764]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  393.325225]  ? addrconf_rs_timer+0x690/0x690
[  393.329650]  ndisc_alloc_skb+0x144/0x340
[  393.333724]  ndisc_send_rs+0x331/0x6e0
[  393.337623]  addrconf_rs_timer+0x314/0x690
[  393.341867]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  393.346133]  call_timer_fn+0x272/0x920
[  393.350033]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  393.354276]  ? process_timeout+0x40/0x40
[  393.358347]  ? __run_timers+0x7da/0xc70
[  393.362325]  ? _raw_spin_unlock_irq+0x27/0x80
[  393.366828]  ? _raw_spin_unlock_irq+0x27/0x80
[  393.371331]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  393.375577]  ? lockdep_hardirqs_on+0x296/0x5b0
[  393.380169]  ? trace_hardirqs_on+0xbd/0x310
[  393.384514]  ? kasan_check_read+0x11/0x20
[  393.388666]  ? __run_timers+0x7da/0xc70
[  393.392663]  ? trace_hardirqs_off_caller+0x310/0x310
[  393.397774]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  393.402054]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  393.406292]  __run_timers+0x7e5/0xc70
[  393.410113]  ? timer_fixup_init+0x70/0x70
[  393.414278]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  393.419313]  ? zap_class+0x640/0x640
[  393.423038]  ? enqueue_hrtimer+0x1a5/0x560
[  393.427279]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  393.432480]  ? find_held_lock+0x36/0x1c0
[  393.436549]  ? zap_class+0x640/0x640
[  393.440269]  ? pvclock_read_flags+0x160/0x160
[  393.444788]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.450356]  ? check_preemption_disabled+0x48/0x280
[  393.455387]  ? __lock_is_held+0xb5/0x140
[  393.459456]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.465014]  ? check_preemption_disabled+0x48/0x280
[  393.470055]  run_timer_softirq+0x52/0xb0
[  393.474129]  ? rcu_read_lock_sched_held+0x14f/0x180
[  393.479150]  __do_softirq+0x308/0xb7e
[  393.482959]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  393.487464]  ? lock_downgrade+0x900/0x900
[  393.491625]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  393.496738]  ? pvclock_read_flags+0x160/0x160
[  393.501241]  ? lapic_next_event+0x5a/0x90
[  393.505396]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.510958]  ? kvm_clock_read+0x18/0x30
[  393.514934]  ? kvm_sched_clock_read+0x9/0x20
[  393.519366]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.524913]  ? check_preemption_disabled+0x48/0x280
[  393.529947]  irq_exit+0x17f/0x1c0
[  393.533410]  smp_apic_timer_interrupt+0x1cb/0x760
[  393.538274]  ? smp_reschedule_interrupt+0x109/0x650
[  393.543329]  ? smp_call_function_single_interrupt+0x650/0x650
[  393.549217]  ? interrupt_entry+0xb5/0xc0
[  393.553284]  ? trace_hardirqs_off_caller+0xbb/0x310
[  393.558307]  ? trace_hardirqs_off_caller+0xbb/0x310
[  393.563346]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  393.568193]  ? trace_hardirqs_on_caller+0x310/0x310
[  393.573218]  ? trace_hardirqs_on_caller+0x310/0x310
[  393.578243]  ? task_prio+0x50/0x50
[  393.581791]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.587336]  ? check_preemption_disabled+0x48/0x280
[  393.592384]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  393.597246]  apic_timer_interrupt+0xf/0x20
[  393.601475]  </IRQ>
[  393.603733] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  393.608677] 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 42 f3
[  393.627590] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  393.635313] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  393.642596] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  393.649876] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  393.657160] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  393.664445] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  393.671771]  skb_clone+0x1bb/0x500
[  393.675323]  ? skb_split+0x11e0/0x11e0
[  393.679220]  ? check_preemption_disabled+0x48/0x280
[  393.684251]  ? __this_cpu_preempt_check+0x1c/0x20
[  393.689103]  ? __bpf_redirect+0x55b/0xb60
[  393.693257]  ? __switch_to_asm+0x34/0x70
[  393.697321]  ? __switch_to_asm+0x40/0x70
[  393.701397]  bpf_clone_redirect+0xb9/0x490
[  393.705646]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  393.710675]  ? __sched_text_start+0x8/0x8
[  393.714847]  ? find_held_lock+0x36/0x1c0
[  393.718932]  ? lock_acquire+0x1ed/0x520
[  393.722914]  ? bpf_test_run+0x3cb/0x780
[  393.726899]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.732462]  ? check_preemption_disabled+0x48/0x280
[  393.737490]  ? kasan_check_read+0x11/0x20
[  393.741642]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  393.746921]  ? rcu_softirq_qs+0x20/0x20
[  393.751007]  ? preempt_schedule+0x4d/0x60
[  393.755170]  ? ___preempt_schedule+0x16/0x18
[  393.759588]  ? bpf_test_run+0x25d/0x780
[  393.763576]  ? netlink_diag_dump+0x2a0/0x2a0
[  393.767989]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  393.773534]  ? bpf_test_init.isra.10+0x70/0x100
[  393.778214]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  393.783001]  ? bpf_test_finish.isra.9+0x260/0x260
[  393.787873]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  393.793438]  ? fput+0x130/0x1a0
[  393.796729]  ? __bpf_prog_get+0x9b/0x290
[  393.800805]  ? bpf_test_finish.isra.9+0x260/0x260
[  393.805654]  ? bpf_prog_test_run+0x130/0x1a0
[  393.810081]  ? __x64_sys_bpf+0x3db/0x520
[  393.814151]  ? bpf_prog_get+0x20/0x20
[  393.817992]  ? do_syscall_64+0x1b9/0x820
[  393.822062]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  393.827431]  ? syscall_return_slowpath+0x5e0/0x5e0
[  393.832377]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  393.837226]  ? trace_hardirqs_on_caller+0x310/0x310
[  393.842252]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  393.847280]  ? prepare_exit_to_usermode+0x291/0x3b0
[  393.852312]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  393.857177]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  393.862565] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  393.862650] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  393.869585] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  393.869590] Call Trace:
[  393.869597]  <IRQ>
[  393.869619]  dump_stack+0x244/0x39d
[  393.869636]  ? dump_stack_print_info.cold.1+0x20/0x20
[  393.869662]  warn_alloc.cold.116+0xb7/0x1bd
[  393.876197] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  393.885505]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  393.888066] syz-executor0 cpuset=syz0 mems_allowed=0
[  393.890211]  ? lock_downgrade+0x900/0x900
[  393.927840]  ? trace_hardirqs_off+0xb8/0x310
[  393.932258]  ? trace_hardirqs_off+0xb8/0x310
[  393.936679]  __alloc_pages_slowpath+0x2651/0x2de0
[  393.941551]  ? warn_alloc+0x120/0x120
[  393.945360]  ? print_usage_bug+0xc0/0xc0
[  393.949430]  ? warn_alloc+0x120/0x120
[  393.953238]  ? warn_alloc+0x120/0x120
[  393.957054]  ? print_usage_bug+0xc0/0xc0
[  393.961123]  ? print_usage_bug+0xc0/0xc0
[  393.965191]  ? __lock_acquire+0x62f/0x4c20
[  393.969452]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  393.974997]  ? should_fail+0x22d/0xd01
[  393.978903]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  393.984038]  ? __lock_acquire+0x62f/0x4c20
[  393.988295]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  393.993403]  ? __lock_acquire+0x62f/0x4c20
[  393.997644]  ? should_fail+0x22d/0xd01
[  394.001532]  ? find_held_lock+0x36/0x1c0
[  394.005604]  ? mark_held_locks+0x130/0x130
[  394.009846]  ? mark_held_locks+0x130/0x130
[  394.014081]  ? zap_class+0x640/0x640
[  394.017796]  ? zap_class+0x640/0x640
[  394.021512]  ? print_usage_bug+0xc0/0xc0
[  394.025572]  ? do_raw_spin_unlock+0xa7/0x330
[  394.029987]  ? zap_class+0x640/0x640
[  394.033715]  ? print_usage_bug+0xc0/0xc0
[  394.037778]  ? wq_watchdog_touch+0x9c/0xfe
[  394.042028]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.047574]  ? check_preemption_disabled+0x48/0x280
[  394.052606]  ? __lock_is_held+0xb5/0x140
[  394.056679]  __alloc_pages_nodemask+0xad8/0xea0
[  394.061352]  ? zap_class+0x640/0x640
[  394.065085]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  394.070124]  ? find_held_lock+0x36/0x1c0
[  394.074204]  ? ____cache_alloc_node+0x1c7/0x1e0
[  394.078878]  ? lock_downgrade+0x900/0x900
[  394.083047]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.088600]  cache_grow_begin+0xa5/0x8c0
[  394.092664]  ? do_raw_spin_unlock+0xa7/0x330
[  394.097085]  fallback_alloc+0x204/0x2e0
[  394.101067]  ____cache_alloc_node+0x1c7/0x1e0
[  394.105570]  kmem_cache_alloc_node+0xe3/0x730
[  394.110068]  ? ipv6_get_ifaddr+0x42e/0x620
[  394.114317]  __alloc_skb+0x119/0x770
[  394.118042]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  394.123364]  ? netdev_alloc_frag+0x1f0/0x1f0
[  394.127784]  ? lock_downgrade+0x900/0x900
[  394.131941]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.137485]  ? refcount_sub_and_test_checked+0x203/0x310
[  394.142945]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  394.148407]  ? addrconf_rs_timer+0x690/0x690
[  394.152829]  ndisc_alloc_skb+0x144/0x340
[  394.156904]  ndisc_send_rs+0x331/0x6e0
[  394.160800]  addrconf_rs_timer+0x314/0x690
[  394.165050]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.169301]  call_timer_fn+0x272/0x920
[  394.173190]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.177430]  ? process_timeout+0x40/0x40
[  394.181503]  ? mark_held_locks+0xc7/0x130
[  394.185671]  ? _raw_spin_unlock_irq+0x27/0x80
[  394.190167]  ? _raw_spin_unlock_irq+0x27/0x80
[  394.194664]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.198903]  ? lockdep_hardirqs_on+0x296/0x5b0
[  394.203504]  ? trace_hardirqs_on+0xbd/0x310
[  394.207829]  ? kasan_check_read+0x11/0x20
[  394.211976]  ? __run_timers+0x7da/0xc70
[  394.215955]  ? trace_hardirqs_off_caller+0x310/0x310
[  394.221066]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.225321]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.229571]  __run_timers+0x7e5/0xc70
[  394.233387]  ? timer_fixup_init+0x70/0x70
[  394.237539]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  394.242575]  ? zap_class+0x640/0x640
[  394.246308]  ? print_usage_bug+0xc0/0xc0
[  394.250373]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  394.255577]  ? find_held_lock+0x36/0x1c0
[  394.259644]  ? zap_class+0x640/0x640
[  394.263362]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.268916]  ? check_preemption_disabled+0x48/0x280
[  394.273960]  ? __lock_is_held+0xb5/0x140
[  394.278031]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.283924]  ? check_preemption_disabled+0x48/0x280
[  394.288952]  run_timer_softirq+0x52/0xb0
[  394.293040]  ? rcu_read_lock_sched_held+0x14f/0x180
[  394.298064]  __do_softirq+0x308/0xb7e
[  394.301872]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  394.306372]  ? lock_downgrade+0x900/0x900
[  394.310596]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  394.315734]  ? pvclock_read_flags+0x160/0x160
[  394.320227]  ? lapic_next_event+0x5a/0x90
[  394.324376]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.329926]  ? kvm_clock_read+0x18/0x30
[  394.333921]  ? kvm_sched_clock_read+0x9/0x20
[  394.338348]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  394.343892]  ? check_preemption_disabled+0x48/0x280
[  394.348936]  irq_exit+0x17f/0x1c0
[  394.352400]  smp_apic_timer_interrupt+0x1cb/0x760
[  394.357241]  ? smp_reschedule_interrupt+0x109/0x650
[  394.362291]  ? smp_call_function_single_interrupt+0x650/0x650
[  394.368188]  ? interrupt_entry+0xb5/0xc0
[  394.372258]  ? trace_hardirqs_off_caller+0xbb/0x310
[  394.377304]  ? trace_hardirqs_off_caller+0xbb/0x310
[  394.382328]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  394.387176]  ? trace_hardirqs_on_caller+0x310/0x310
[  394.392193]  ? trace_hardirqs_on_caller+0x310/0x310
[  394.397228]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  394.402087]  apic_timer_interrupt+0xf/0x20
[  394.406317]  </IRQ>
[  394.408563] RIP: 0010:dump_stack+0x358/0x39d
[  394.412972] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  394.431883] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  394.439603] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  394.446885] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  394.454187] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  394.461455] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  394.468725] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  394.476075]  ? dump_stack+0x34f/0x39d
[  394.479928]  ? dump_stack_print_info.cold.1+0x20/0x20
[  394.485126]  ? mark_held_locks+0x130/0x130
[  394.489364]  ? mark_held_locks+0x130/0x130
[  394.493610]  dump_header+0x27b/0xf72
[  394.497339]  ? pagefault_out_of_memory+0x197/0x197
[  394.502281]  ? __lock_acquire+0x62f/0x4c20
[  394.506518]  ? percpu_ref_get_many+0x240/0x240
[  394.511111]  ? print_usage_bug+0xc0/0xc0
[  394.515181]  ? zap_class+0x640/0x640
[  394.518898]  ? print_usage_bug+0xc0/0xc0
[  394.522990]  ? print_usage_bug+0xc0/0xc0
[  394.527063]  ? zap_class+0x640/0x640
[  394.530804]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.536349]  ? find_held_lock+0x36/0x1c0
[  394.540445]  ? mark_held_locks+0xc7/0x130
[  394.544598]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  394.549705]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  394.554842]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  394.559427]  ? trace_hardirqs_on+0xbd/0x310
[  394.563751]  ? kasan_check_read+0x11/0x20
[  394.567897]  ? ___ratelimit+0x3b4/0x672
[  394.571870]  ? trace_hardirqs_off_caller+0x310/0x310
[  394.576976]  ? trace_hardirqs_on+0x310/0x310
[  394.581409]  ? lock_downgrade+0x900/0x900
[  394.585565]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  394.590673]  ? ___ratelimit+0x3b9/0x672
[  394.594654]  ? idr_get_free+0xf70/0xf70
[  394.598628]  ? find_held_lock+0x36/0x1c0
[  394.602702]  oom_kill_process.cold.27+0x10/0x903
[  394.607479]  ? zap_class+0x640/0x640
[  394.611197]  ? check_preemption_disabled+0x48/0x280
[  394.616218]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  394.621153]  ? kasan_check_read+0x11/0x20
[  394.625304]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  394.630603]  ? oom_evaluate_task+0x540/0x540
[  394.635027]  ? find_held_lock+0x36/0x1c0
[  394.639134]  ? out_of_memory+0x974/0x1430
[  394.643285]  ? lock_downgrade+0x900/0x900
[  394.647434]  ? check_preemption_disabled+0x48/0x280
[  394.652464]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  394.657402]  ? kasan_check_read+0x11/0x20
[  394.661554]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  394.666830]  ? rcu_softirq_qs+0x20/0x20
[  394.670840]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  394.676379]  ? oom_evaluate_task+0x302/0x540
[  394.680797]  out_of_memory+0xa84/0x1430
[  394.684779]  ? oom_killer_disable+0x3a0/0x3a0
[  394.689287]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  394.694238]  ? __ww_mutex_check_waiters+0x160/0x160
[  394.699270]  __alloc_pages_slowpath+0x232c/0x2de0
[  394.704141]  ? warn_alloc+0x120/0x120
[  394.707940]  ? mark_held_locks+0x130/0x130
[  394.712185]  ? find_get_entry+0xaae/0x1120
[  394.716429]  ? filemap_map_pages+0x1a20/0x1a20
[  394.721029]  ? zap_class+0x640/0x640
[  394.724756]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.730301]  ? check_preemption_disabled+0x48/0x280
[  394.735323]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  394.740862]  ? should_fail+0x22d/0xd01
[  394.744755]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  394.749864]  ? zap_class+0x640/0x640
[  394.753606]  ? __lock_is_held+0xb5/0x140
[  394.757675]  ? mark_held_locks+0x130/0x130
[  394.761947]  ? lock_release+0xa00/0xa00
[  394.765925]  ? perf_trace_sched_process_exec+0x860/0x860
[  394.771379]  ? xa_load+0x2ba/0x460
[  394.774931]  ? lock_downgrade+0x900/0x900
[  394.779085]  ? __might_sleep+0x95/0x190
[  394.783098]  __alloc_pages_nodemask+0xad8/0xea0
[  394.787777]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  394.792796]  ? __page_cache_alloc+0x191/0x5c0
[  394.797289]  ? xa_load+0x2e1/0x460
[  394.800831]  ? xa_clear_mark+0x40/0x40
[  394.804742]  ? zap_class+0x640/0x640
[  394.808465]  ? zap_class+0x640/0x640
[  394.812194]  ? zap_class+0x640/0x640
[  394.815907]  ? __do_page_cache_readahead+0x663/0x810
[  394.821038]  ? find_held_lock+0x36/0x1c0
[  394.825112]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  394.830660]  alloc_pages_current+0x173/0x350
[  394.835079]  __page_cache_alloc+0x38c/0x5c0
[  394.839405]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  394.844343]  ? kasan_check_read+0x11/0x20
[  394.848498]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  394.853779]  ? generic_perform_write+0x6a0/0x6a0
[  394.858543]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  394.864087]  ? check_preemption_disabled+0x48/0x280
[  394.869146]  filemap_fault+0x1595/0x25f0
[  394.873254]  ? __lock_page_or_retry+0xa00/0xa00
[  394.877924]  ? mark_held_locks+0x130/0x130
[  394.882168]  ? filemap_map_pages+0xd6b/0x1a20
[  394.886667]  ? lock_downgrade+0x900/0x900
[  394.890820]  ? check_preemption_disabled+0x48/0x280
[  394.895842]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  394.900786]  ? kasan_check_read+0x11/0x20
[  394.904933]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  394.910214]  ? rcu_softirq_qs+0x20/0x20
[  394.914203]  ? filemap_map_pages+0xd92/0x1a20
[  394.918712]  ? find_get_entries_tag+0x1400/0x1400
[  394.923560]  ? debug_object_destroy+0x2b0/0x2b0
[  394.928233]  ? lock_pi_update_atomic+0x150/0x150
[  394.932996]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.938555]  ? lock_acquire+0x1ed/0x520
[  394.942530]  ? ext4_filemap_fault+0x7a/0xad
[  394.946874]  ? lock_release+0xa00/0xa00
[  394.950846]  ? perf_trace_sched_process_exec+0x860/0x860
[  394.956298]  ? print_usage_bug+0xc0/0xc0
[  394.960365]  ? print_usage_bug+0xc0/0xc0
[  394.964450]  ? down_read+0x8d/0x120
[  394.968081]  ? ext4_filemap_fault+0x7a/0xad
[  394.972422]  ? __down_interruptible+0x700/0x700
[  394.977105]  ext4_filemap_fault+0x82/0xad
[  394.981274]  __do_fault+0x100/0x6b0
[  394.984903]  ? find_held_lock+0x36/0x1c0
[  394.988983]  ? pmd_devmap_trans_unstable+0x220/0x220
[  394.994123]  ? mark_held_locks+0x130/0x130
[  394.998361]  ? mark_held_locks+0x130/0x130
[  395.002607]  ? debug_smp_processor_id+0x1c/0x20
[  395.007283]  ? perf_trace_lock+0x14d/0x7a0
[  395.011541]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  395.017085]  __handle_mm_fault+0x3ea0/0x5be0
[  395.021504]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  395.026352]  ? lock_is_held_type+0x210/0x210
[  395.030806]  ? __switch_to_asm+0x34/0x70
[  395.034866]  ? __switch_to_asm+0x34/0x70
[  395.038974]  ? zap_class+0x640/0x640
[  395.042688]  ? zap_class+0x640/0x640
[  395.046410]  ? __x64_sys_futex+0x53e/0x6a0
[  395.050655]  ? find_held_lock+0x36/0x1c0
[  395.054729]  ? handle_mm_fault+0x42a/0xc70
[  395.058966]  ? lock_downgrade+0x900/0x900
[  395.063120]  ? check_preemption_disabled+0x48/0x280
[  395.068146]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  395.073074]  ? kasan_check_read+0x11/0x20
[  395.077223]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  395.082501]  ? rcu_softirq_qs+0x20/0x20
[  395.086478]  ? trace_hardirqs_off_caller+0x310/0x310
[  395.091590]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  395.097132]  ? check_preemption_disabled+0x48/0x280
[  395.102159]  handle_mm_fault+0x54f/0xc70
[  395.106229]  ? __handle_mm_fault+0x5be0/0x5be0
[  395.110834]  ? find_vma+0x34/0x190
[  395.114381]  __do_page_fault+0x5e8/0xe60
[  395.118448]  ? trace_hardirqs_off+0xb8/0x310
[  395.122874]  do_page_fault+0xf2/0x7e0
[  395.126684]  ? vmalloc_sync_all+0x30/0x30
[  395.130833]  ? error_entry+0x70/0xd0
[  395.134581]  ? trace_hardirqs_off_caller+0xbb/0x310
[  395.139598]  ? trace_hardirqs_on_caller+0xc0/0x310
[  395.144533]  ? syscall_return_slowpath+0x5e0/0x5e0
[  395.149468]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  395.154317]  ? trace_hardirqs_on_caller+0x310/0x310
[  395.159338]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  395.164795]  ? prepare_exit_to_usermode+0x291/0x3b0
[  395.169816]  ? page_fault+0x8/0x30
[  395.173381]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  395.178256]  ? page_fault+0x8/0x30
[  395.182323]  page_fault+0x1e/0x30
[  395.185774] RIP: 0033:0x45ddf3
[  395.188976] Code: Bad RIP value.
[  395.192336] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  395.197698] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  395.204969] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  395.212239] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  395.219509] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  395.226778] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  395.234075] warn_alloc_show_mem: 1 callbacks suppressed
[  395.234087] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  395.234089] Mem-Info:
[  395.234120] active_anon:45985 inactive_anon:296 isolated_anon:0
[  395.234120]  active_file:15 inactive_file:8 isolated_file:0
[  395.234120]  unevictable:0 dirty:0 writeback:0 unstable:0
[  395.234120]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  395.234120]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  395.234120]  free:13771 free_pcp:249 free_cma:0
[  395.239462] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  395.246831] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  395.249231] Call Trace:
[  395.282031] 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
[  395.291392]  <IRQ>
[  395.319074] lowmem_reserve[]: 0 2818 6321 6321
[  395.321667]  dump_stack+0x244/0x39d
[  395.347773] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  395.349932]  ? dump_stack_print_info.cold.1+0x20/0x20
[  395.354472] lowmem_reserve[]: 0 0 3503 3503
[  395.358116]  warn_alloc.cold.116+0xb7/0x1bd
[  395.385592] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  395.390788]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  395.395082] lowmem_reserve[]: 0 0 0 0
[  395.399414]  ? lock_downgrade+0x900/0x900
[  395.399436]  ? trace_hardirqs_off+0xb8/0x310
[  395.428397] 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
[  395.433259]  ? trace_hardirqs_off+0xb8/0x310
[  395.437037] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  395.441192]  __alloc_pages_slowpath+0x2651/0x2de0
[  395.445568] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  395.459119]  ? warn_alloc+0x120/0x120
[  395.463503] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  395.478595]  ? print_usage_bug+0xc0/0xc0
[  395.483423] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  395.498895]  ? warn_alloc+0x120/0x120
[  395.502670] 376 total pagecache pages
[  395.511510]  ? warn_alloc+0x120/0x120
[  395.515555] 0 pages in swap cache
[  395.524128]  ? print_usage_bug+0xc0/0xc0
[  395.527906] Swap cache stats: add 0, delete 0, find 0/0
[  395.531708]  ? print_usage_bug+0xc0/0xc0
[  395.535477] Free swap  = 0kB
[  395.538933]  ? __lock_acquire+0x62f/0x4c20
[  395.542963] Total swap = 0kB
[  395.542971] 1965979 pages RAM
[  395.548339]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  395.552372] 0 pages HighMem/MovableOnly
[  395.555406]  ? should_fail+0x22d/0xd01
[  395.559614] 342854 pages reserved
[  395.562634]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  395.565721] 0 pages cma reserved
[  395.565791] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  395.571261]  ? __lock_acquire+0x62f/0x4c20
[  395.571281]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  395.571297]  ? __lock_acquire+0x62f/0x4c20
[  395.575328] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  395.579156]  ? should_fail+0x22d/0xd01
[  395.582588] syz-fuzzer cpuset=/ mems_allowed=0
[  395.587684]  ? find_held_lock+0x36/0x1c0
[  395.633914]  ? mark_held_locks+0x130/0x130
[  395.638160]  ? mark_held_locks+0x130/0x130
[  395.642394]  ? zap_class+0x640/0x640
[  395.646109]  ? zap_class+0x640/0x640
[  395.649825]  ? print_usage_bug+0xc0/0xc0
[  395.653891]  ? do_raw_spin_unlock+0xa7/0x330
[  395.658301]  ? zap_class+0x640/0x640
[  395.662028]  ? print_usage_bug+0xc0/0xc0
[  395.666092]  ? wq_watchdog_touch+0x9c/0xfe
[  395.670334]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.675876]  ? check_preemption_disabled+0x48/0x280
[  395.680934]  ? __lock_is_held+0xb5/0x140
[  395.685008]  __alloc_pages_nodemask+0xad8/0xea0
[  395.689689]  ? zap_class+0x640/0x640
[  395.693414]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  395.698461]  ? find_held_lock+0x36/0x1c0
[  395.702539]  ? ____cache_alloc_node+0x1c7/0x1e0
[  395.707233]  ? lock_downgrade+0x900/0x900
[  395.711399]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.716948]  cache_grow_begin+0xa5/0x8c0
[  395.721012]  ? do_raw_spin_unlock+0xa7/0x330
[  395.725457]  fallback_alloc+0x204/0x2e0
[  395.729443]  ____cache_alloc_node+0x1c7/0x1e0
[  395.733947]  kmem_cache_alloc_node+0xe3/0x730
[  395.738475]  ? ipv6_get_ifaddr+0x42e/0x620
[  395.742722]  __alloc_skb+0x119/0x770
[  395.746439]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  395.751723]  ? netdev_alloc_frag+0x1f0/0x1f0
[  395.756138]  ? lock_downgrade+0x900/0x900
[  395.760299]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.765843]  ? refcount_sub_and_test_checked+0x203/0x310
[  395.771302]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  395.776793]  ? addrconf_rs_timer+0x690/0x690
[  395.781240]  ndisc_alloc_skb+0x144/0x340
[  395.785309]  ndisc_send_rs+0x331/0x6e0
[  395.789206]  addrconf_rs_timer+0x314/0x690
[  395.793452]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.797700]  call_timer_fn+0x272/0x920
[  395.801591]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.805828]  ? process_timeout+0x40/0x40
[  395.809908]  ? __run_timers+0x7da/0xc70
[  395.813898]  ? _raw_spin_unlock_irq+0x27/0x80
[  395.818399]  ? _raw_spin_unlock_irq+0x27/0x80
[  395.822903]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.827147]  ? lockdep_hardirqs_on+0x296/0x5b0
[  395.831734]  ? trace_hardirqs_on+0xbd/0x310
[  395.836085]  ? kasan_check_read+0x11/0x20
[  395.840258]  ? __run_timers+0x7da/0xc70
[  395.844251]  ? trace_hardirqs_off_caller+0x310/0x310
[  395.849363]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.853606]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.857841]  __run_timers+0x7e5/0xc70
[  395.861655]  ? timer_fixup_init+0x70/0x70
[  395.865810]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  395.870831]  ? zap_class+0x640/0x640
[  395.874549]  ? enqueue_hrtimer+0x1a5/0x560
[  395.878798]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  395.883995]  ? find_held_lock+0x36/0x1c0
[  395.888069]  ? zap_class+0x640/0x640
[  395.891793]  ? pvclock_read_flags+0x160/0x160
[  395.896297]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.901846]  ? check_preemption_disabled+0x48/0x280
[  395.906877]  ? __lock_is_held+0xb5/0x140
[  395.910952]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.916496]  ? check_preemption_disabled+0x48/0x280
[  395.921524]  run_timer_softirq+0x52/0xb0
[  395.925596]  ? rcu_read_lock_sched_held+0x14f/0x180
[  395.930620]  __do_softirq+0x308/0xb7e
[  395.934435]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  395.938931]  ? lock_downgrade+0x900/0x900
[  395.943095]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  395.948253]  ? pvclock_read_flags+0x160/0x160
[  395.952783]  ? lapic_next_event+0x5a/0x90
[  395.956938]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.962518]  ? kvm_clock_read+0x18/0x30
[  395.966498]  ? kvm_sched_clock_read+0x9/0x20
[  395.970931]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.976474]  ? check_preemption_disabled+0x48/0x280
[  395.981502]  irq_exit+0x17f/0x1c0
[  395.984974]  smp_apic_timer_interrupt+0x1cb/0x760
[  395.989823]  ? smp_reschedule_interrupt+0x109/0x650
[  395.994846]  ? smp_call_function_single_interrupt+0x650/0x650
[  396.000748]  ? interrupt_entry+0xb5/0xc0
[  396.004832]  ? trace_hardirqs_off_caller+0xbb/0x310
[  396.009854]  ? trace_hardirqs_off_caller+0xbb/0x310
[  396.014888]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  396.019736]  ? trace_hardirqs_on_caller+0x310/0x310
[  396.024757]  ? trace_hardirqs_on_caller+0x310/0x310
[  396.029778]  ? task_prio+0x50/0x50
[  396.033325]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.038866]  ? check_preemption_disabled+0x48/0x280
[  396.043900]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  396.048757]  apic_timer_interrupt+0xf/0x20
[  396.053006]  </IRQ>
[  396.055260] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  396.060196] 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 42 f3
[  396.079124] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  396.086850] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  396.094136] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  396.101416] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  396.108695] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  396.116007] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  396.123340]  skb_clone+0x1bb/0x500
[  396.126908]  ? skb_split+0x11e0/0x11e0
[  396.130815]  ? check_preemption_disabled+0x48/0x280
[  396.135862]  ? __this_cpu_preempt_check+0x1c/0x20
[  396.140715]  ? __bpf_redirect+0x55b/0xb60
[  396.144867]  ? __switch_to_asm+0x34/0x70
[  396.148930]  ? __switch_to_asm+0x40/0x70
[  396.152999]  bpf_clone_redirect+0xb9/0x490
[  396.157258]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  396.162287]  ? __sched_text_start+0x8/0x8
[  396.166454]  ? find_held_lock+0x36/0x1c0
[  396.170533]  ? lock_acquire+0x1ed/0x520
[  396.174512]  ? bpf_test_run+0x3cb/0x780
[  396.178490]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.184060]  ? check_preemption_disabled+0x48/0x280
[  396.189090]  ? kasan_check_read+0x11/0x20
[  396.193240]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  396.198533]  ? rcu_softirq_qs+0x20/0x20
[  396.202516]  ? preempt_schedule+0x4d/0x60
[  396.206666]  ? ___preempt_schedule+0x16/0x18
[  396.211123]  ? bpf_test_run+0x25d/0x780
[  396.215111]  ? netlink_diag_dump+0x2a0/0x2a0
[  396.219527]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  396.225069]  ? bpf_test_init.isra.10+0x70/0x100
[  396.229749]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  396.234523]  ? bpf_test_finish.isra.9+0x260/0x260
[  396.239394]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  396.244953]  ? fput+0x130/0x1a0
[  396.248260]  ? __bpf_prog_get+0x9b/0x290
[  396.252332]  ? bpf_test_finish.isra.9+0x260/0x260
[  396.257183]  ? bpf_prog_test_run+0x130/0x1a0
[  396.261600]  ? __x64_sys_bpf+0x3db/0x520
[  396.265666]  ? bpf_prog_get+0x20/0x20
[  396.269494]  ? do_syscall_64+0x1b9/0x820
[  396.273562]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  396.278932]  ? syscall_return_slowpath+0x5e0/0x5e0
[  396.283863]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  396.288720]  ? trace_hardirqs_on_caller+0x310/0x310
[  396.293742]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  396.298766]  ? prepare_exit_to_usermode+0x291/0x3b0
[  396.303795]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  396.308695]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  396.314627] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  396.314694] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  396.321643] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  396.321649] Call Trace:
[  396.321655]  <IRQ>
[  396.321676]  dump_stack+0x244/0x39d
[  396.321693]  ? dump_stack_print_info.cold.1+0x20/0x20
[  396.321717]  warn_alloc.cold.116+0xb7/0x1bd
[  396.328420] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  396.337572]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  396.340148] syz-executor0 cpuset=syz0 mems_allowed=0
[  396.342301]  ? lock_downgrade+0x900/0x900
[  396.379961]  ? trace_hardirqs_off+0xb8/0x310
[  396.384396]  ? trace_hardirqs_off+0xb8/0x310
[  396.388860]  __alloc_pages_slowpath+0x2651/0x2de0
[  396.393772]  ? warn_alloc+0x120/0x120
[  396.397587]  ? print_usage_bug+0xc0/0xc0
[  396.401655]  ? warn_alloc+0x120/0x120
[  396.405510]  ? warn_alloc+0x120/0x120
[  396.409317]  ? print_usage_bug+0xc0/0xc0
[  396.413395]  ? print_usage_bug+0xc0/0xc0
[  396.417461]  ? __lock_acquire+0x62f/0x4c20
[  396.421709]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  396.427271]  ? should_fail+0x22d/0xd01
[  396.431169]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  396.436283]  ? __lock_acquire+0x62f/0x4c20
[  396.440528]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  396.445637]  ? __lock_acquire+0x62f/0x4c20
[  396.449875]  ? should_fail+0x22d/0xd01
[  396.453772]  ? find_held_lock+0x36/0x1c0
[  396.457849]  ? mark_held_locks+0x130/0x130
[  396.462111]  ? mark_held_locks+0x130/0x130
[  396.466351]  ? zap_class+0x640/0x640
[  396.470097]  ? zap_class+0x640/0x640
[  396.473849]  ? print_usage_bug+0xc0/0xc0
[  396.477905]  ? do_raw_spin_unlock+0xa7/0x330
[  396.482314]  ? zap_class+0x640/0x640
[  396.486039]  ? print_usage_bug+0xc0/0xc0
[  396.490104]  ? wq_watchdog_touch+0x9c/0xfe
[  396.494348]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.499893]  ? check_preemption_disabled+0x48/0x280
[  396.504929]  ? __lock_is_held+0xb5/0x140
[  396.509001]  __alloc_pages_nodemask+0xad8/0xea0
[  396.513687]  ? zap_class+0x640/0x640
[  396.517414]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  396.522448]  ? find_held_lock+0x36/0x1c0
[  396.526524]  ? ____cache_alloc_node+0x1c7/0x1e0
[  396.531202]  ? lock_downgrade+0x900/0x900
[  396.535364]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.540920]  cache_grow_begin+0xa5/0x8c0
[  396.544992]  ? do_raw_spin_unlock+0xa7/0x330
[  396.549427]  fallback_alloc+0x204/0x2e0
[  396.553438]  ____cache_alloc_node+0x1c7/0x1e0
[  396.557948]  kmem_cache_alloc_node+0xe3/0x730
[  396.562449]  ? ipv6_get_ifaddr+0x42e/0x620
[  396.566703]  __alloc_skb+0x119/0x770
[  396.570425]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  396.575726]  ? netdev_alloc_frag+0x1f0/0x1f0
[  396.580147]  ? lock_downgrade+0x900/0x900
[  396.584312]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.589858]  ? refcount_sub_and_test_checked+0x203/0x310
[  396.595320]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  396.600787]  ? addrconf_rs_timer+0x690/0x690
[  396.605219]  ndisc_alloc_skb+0x144/0x340
[  396.609296]  ndisc_send_rs+0x331/0x6e0
[  396.613208]  addrconf_rs_timer+0x314/0x690
[  396.617452]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  396.621703]  call_timer_fn+0x272/0x920
[  396.625594]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  396.629834]  ? process_timeout+0x40/0x40
[  396.633915]  ? mark_held_locks+0xc7/0x130
[  396.638073]  ? _raw_spin_unlock_irq+0x27/0x80
[  396.642574]  ? _raw_spin_unlock_irq+0x27/0x80
[  396.647072]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  396.651316]  ? lockdep_hardirqs_on+0x296/0x5b0
[  396.655905]  ? trace_hardirqs_on+0xbd/0x310
[  396.660318]  ? kasan_check_read+0x11/0x20
[  396.664474]  ? __run_timers+0x7da/0xc70
[  396.668459]  ? trace_hardirqs_off_caller+0x310/0x310
[  396.673575]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  396.677825]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  396.682062]  __run_timers+0x7e5/0xc70
[  396.685874]  ? timer_fixup_init+0x70/0x70
[  396.690042]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  396.695063]  ? zap_class+0x640/0x640
[  396.698789]  ? print_usage_bug+0xc0/0xc0
[  396.702885]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  396.708088]  ? find_held_lock+0x36/0x1c0
[  396.712160]  ? zap_class+0x640/0x640
[  396.715884]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.721431]  ? check_preemption_disabled+0x48/0x280
[  396.726466]  ? __lock_is_held+0xb5/0x140
[  396.730537]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.736096]  ? check_preemption_disabled+0x48/0x280
[  396.741124]  run_timer_softirq+0x52/0xb0
[  396.745211]  ? rcu_read_lock_sched_held+0x14f/0x180
[  396.750235]  __do_softirq+0x308/0xb7e
[  396.754054]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  396.758558]  ? lock_downgrade+0x900/0x900
[  396.762715]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  396.767832]  ? pvclock_read_flags+0x160/0x160
[  396.772335]  ? lapic_next_event+0x5a/0x90
[  396.776495]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.782060]  ? kvm_clock_read+0x18/0x30
[  396.786047]  ? kvm_sched_clock_read+0x9/0x20
[  396.790469]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  396.796054]  ? check_preemption_disabled+0x48/0x280
[  396.801087]  irq_exit+0x17f/0x1c0
[  396.804548]  smp_apic_timer_interrupt+0x1cb/0x760
[  396.809403]  ? smp_reschedule_interrupt+0x109/0x650
[  396.814429]  ? smp_call_function_single_interrupt+0x650/0x650
[  396.820327]  ? interrupt_entry+0xb5/0xc0
[  396.824418]  ? trace_hardirqs_off_caller+0xbb/0x310
[  396.829442]  ? trace_hardirqs_off_caller+0xbb/0x310
[  396.834471]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  396.839332]  ? trace_hardirqs_on_caller+0x310/0x310
[  396.844372]  ? trace_hardirqs_on_caller+0x310/0x310
[  396.849416]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  396.854296]  apic_timer_interrupt+0xf/0x20
[  396.858552]  </IRQ>
[  396.860797] RIP: 0010:dump_stack+0x358/0x39d
[  396.865212] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  396.884140] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  396.891866] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  396.899148] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  396.906427] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  396.913708] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  396.920988] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  396.928303]  ? dump_stack+0x34f/0x39d
[  396.932133]  ? dump_stack_print_info.cold.1+0x20/0x20
[  396.937345]  ? mark_held_locks+0x130/0x130
[  396.941592]  ? mark_held_locks+0x130/0x130
[  396.945839]  dump_header+0x27b/0xf72
[  396.949585]  ? pagefault_out_of_memory+0x197/0x197
[  396.954530]  ? __lock_acquire+0x62f/0x4c20
[  396.958802]  ? percpu_ref_get_many+0x240/0x240
[  396.963417]  ? print_usage_bug+0xc0/0xc0
[  396.967503]  ? zap_class+0x640/0x640
[  396.971238]  ? print_usage_bug+0xc0/0xc0
[  396.975314]  ? print_usage_bug+0xc0/0xc0
[  396.979382]  ? zap_class+0x640/0x640
[  396.983125]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.988683]  ? find_held_lock+0x36/0x1c0
[  396.992760]  ? mark_held_locks+0xc7/0x130
[  396.996919]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  397.002045]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  397.007169]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  397.011776]  ? trace_hardirqs_on+0xbd/0x310
[  397.016122]  ? kasan_check_read+0x11/0x20
[  397.020296]  ? ___ratelimit+0x3b4/0x672
[  397.024315]  ? trace_hardirqs_off_caller+0x310/0x310
[  397.029428]  ? trace_hardirqs_on+0x310/0x310
[  397.033856]  ? lock_downgrade+0x900/0x900
[  397.038051]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  397.043187]  ? ___ratelimit+0x3b9/0x672
[  397.047179]  ? idr_get_free+0xf70/0xf70
[  397.051158]  ? find_held_lock+0x36/0x1c0
[  397.055234]  oom_kill_process.cold.27+0x10/0x903
[  397.060031]  ? zap_class+0x640/0x640
[  397.063756]  ? check_preemption_disabled+0x48/0x280
[  397.068786]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  397.073752]  ? kasan_check_read+0x11/0x20
[  397.077908]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  397.083191]  ? oom_evaluate_task+0x540/0x540
[  397.087608]  ? find_held_lock+0x36/0x1c0
[  397.091684]  ? out_of_memory+0x974/0x1430
[  397.095841]  ? lock_downgrade+0x900/0x900
[  397.099996]  ? check_preemption_disabled+0x48/0x280
[  397.105037]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  397.109973]  ? kasan_check_read+0x11/0x20
[  397.114125]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  397.119410]  ? rcu_softirq_qs+0x20/0x20
[  397.123399]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  397.128941]  ? oom_evaluate_task+0x302/0x540
[  397.133379]  out_of_memory+0xa84/0x1430
[  397.137392]  ? oom_killer_disable+0x3a0/0x3a0
[  397.141895]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  397.146840]  ? __ww_mutex_check_waiters+0x160/0x160
[  397.151877]  __alloc_pages_slowpath+0x232c/0x2de0
[  397.156757]  ? warn_alloc+0x120/0x120
[  397.160593]  ? mark_held_locks+0x130/0x130
[  397.164882]  ? find_get_entry+0xaae/0x1120
[  397.169129]  ? filemap_map_pages+0x1a20/0x1a20
[  397.173738]  ? zap_class+0x640/0x640
[  397.177491]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.183252]  ? check_preemption_disabled+0x48/0x280
[  397.188277]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  397.193820]  ? should_fail+0x22d/0xd01
[  397.197714]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  397.202824]  ? zap_class+0x640/0x640
[  397.206565]  ? __lock_is_held+0xb5/0x140
[  397.210637]  ? mark_held_locks+0x130/0x130
[  397.214876]  ? lock_release+0xa00/0xa00
[  397.218851]  ? perf_trace_sched_process_exec+0x860/0x860
[  397.224302]  ? xa_load+0x2ba/0x460
[  397.227849]  ? lock_downgrade+0x900/0x900
[  397.232013]  ? __might_sleep+0x95/0x190
[  397.236006]  __alloc_pages_nodemask+0xad8/0xea0
[  397.240701]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  397.245737]  ? __page_cache_alloc+0x191/0x5c0
[  397.250233]  ? xa_load+0x2e1/0x460
[  397.253811]  ? xa_clear_mark+0x40/0x40
[  397.257706]  ? zap_class+0x640/0x640
[  397.261433]  ? zap_class+0x640/0x640
[  397.265152]  ? zap_class+0x640/0x640
[  397.268899]  ? __do_page_cache_readahead+0x663/0x810
[  397.274028]  ? find_held_lock+0x36/0x1c0
[  397.278113]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  397.283664]  alloc_pages_current+0x173/0x350
[  397.288090]  __page_cache_alloc+0x38c/0x5c0
[  397.292423]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  397.297357]  ? kasan_check_read+0x11/0x20
[  397.301517]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  397.306803]  ? generic_perform_write+0x6a0/0x6a0
[  397.311573]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  397.317120]  ? check_preemption_disabled+0x48/0x280
[  397.322156]  filemap_fault+0x1595/0x25f0
[  397.326238]  ? __lock_page_or_retry+0xa00/0xa00
[  397.330918]  ? mark_held_locks+0x130/0x130
[  397.335173]  ? filemap_map_pages+0xd6b/0x1a20
[  397.339678]  ? lock_downgrade+0x900/0x900
[  397.343831]  ? check_preemption_disabled+0x48/0x280
[  397.348859]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  397.353813]  ? kasan_check_read+0x11/0x20
[  397.357965]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  397.363264]  ? rcu_softirq_qs+0x20/0x20
[  397.367261]  ? filemap_map_pages+0xd92/0x1a20
[  397.371811]  ? find_get_entries_tag+0x1400/0x1400
[  397.376670]  ? debug_object_destroy+0x2b0/0x2b0
[  397.381364]  ? lock_pi_update_atomic+0x150/0x150
[  397.386134]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.391714]  ? lock_acquire+0x1ed/0x520
[  397.395712]  ? ext4_filemap_fault+0x7a/0xad
[  397.400055]  ? lock_release+0xa00/0xa00
[  397.404046]  ? perf_trace_sched_process_exec+0x860/0x860
[  397.409511]  ? print_usage_bug+0xc0/0xc0
[  397.413584]  ? print_usage_bug+0xc0/0xc0
[  397.417661]  ? down_read+0x8d/0x120
[  397.421296]  ? ext4_filemap_fault+0x7a/0xad
[  397.425623]  ? __down_interruptible+0x700/0x700
[  397.430313]  ext4_filemap_fault+0x82/0xad
[  397.434471]  __do_fault+0x100/0x6b0
[  397.438109]  ? find_held_lock+0x36/0x1c0
[  397.442180]  ? pmd_devmap_trans_unstable+0x220/0x220
[  397.447295]  ? mark_held_locks+0x130/0x130
[  397.451540]  ? mark_held_locks+0x130/0x130
[  397.455787]  ? debug_smp_processor_id+0x1c/0x20
[  397.460472]  ? perf_trace_lock+0x14d/0x7a0
[  397.464723]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  397.470281]  __handle_mm_fault+0x3ea0/0x5be0
[  397.474712]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  397.479566]  ? lock_is_held_type+0x210/0x210
[  397.483993]  ? __switch_to_asm+0x34/0x70
[  397.488073]  ? __switch_to_asm+0x34/0x70
[  397.492160]  ? zap_class+0x640/0x640
[  397.495883]  ? zap_class+0x640/0x640
[  397.499601]  ? __x64_sys_futex+0x53e/0x6a0
[  397.503855]  ? find_held_lock+0x36/0x1c0
[  397.507947]  ? handle_mm_fault+0x42a/0xc70
[  397.512187]  ? lock_downgrade+0x900/0x900
[  397.516341]  ? check_preemption_disabled+0x48/0x280
[  397.521412]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  397.526348]  ? kasan_check_read+0x11/0x20
[  397.530506]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  397.535789]  ? rcu_softirq_qs+0x20/0x20
[  397.539767]  ? trace_hardirqs_off_caller+0x310/0x310
[  397.544896]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  397.550450]  ? check_preemption_disabled+0x48/0x280
[  397.555487]  handle_mm_fault+0x54f/0xc70
[  397.559572]  ? __handle_mm_fault+0x5be0/0x5be0
[  397.564171]  ? find_vma+0x34/0x190
[  397.567722]  __do_page_fault+0x5e8/0xe60
[  397.571790]  ? trace_hardirqs_off+0xb8/0x310
[  397.576215]  do_page_fault+0xf2/0x7e0
[  397.580019]  ? vmalloc_sync_all+0x30/0x30
[  397.584198]  ? error_entry+0x70/0xd0
[  397.587920]  ? trace_hardirqs_off_caller+0xbb/0x310
[  397.592942]  ? trace_hardirqs_on_caller+0xc0/0x310
[  397.597882]  ? syscall_return_slowpath+0x5e0/0x5e0
[  397.602818]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  397.607688]  ? trace_hardirqs_on_caller+0x310/0x310
[  397.612712]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  397.618178]  ? prepare_exit_to_usermode+0x291/0x3b0
[  397.623204]  ? page_fault+0x8/0x30
[  397.626755]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  397.631609]  ? page_fault+0x8/0x30
[  397.635166]  page_fault+0x1e/0x30
[  397.638621] RIP: 0033:0x45ddf3
[  397.641827] Code: Bad RIP value.
[  397.645189] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  397.650553] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  397.657830] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  397.665106] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  397.672391] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  397.679671] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  397.686978] warn_alloc_show_mem: 1 callbacks suppressed
[  397.686992] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  397.686993] Mem-Info:
[  397.687034] active_anon:45985 inactive_anon:296 isolated_anon:0
[  397.687034]  active_file:15 inactive_file:8 isolated_file:0
[  397.687034]  unevictable:0 dirty:0 writeback:0 unstable:0
[  397.687034]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  397.687034]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  397.687034]  free:13771 free_pcp:249 free_cma:0
[  397.692371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  397.692381] Call Trace:
[  397.699763] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  397.702167]  <IRQ>
[  397.734958] 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
[  397.744359]  dump_stack+0x244/0x39d
[  397.746916] lowmem_reserve[]: 0 2818 6321 6321
[  397.774602]  ? dump_stack_print_info.cold.1+0x20/0x20
[  397.776733] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  397.802880]  warn_alloc.cold.116+0xb7/0x1bd
[  397.806483] lowmem_reserve[]: 0 0 3503 3503
[  397.811071]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  397.816236] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  397.843752]  ? lock_downgrade+0x900/0x900
[  397.848060] lowmem_reserve[]: 0 0 0 0
[  397.852391]  ? trace_hardirqs_off+0xb8/0x310
[  397.857215] 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
[  397.886206]  ? trace_hardirqs_off+0xb8/0x310
[  397.890332] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  397.894144]  __alloc_pages_slowpath+0x2651/0x2de0
[  397.898527] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  397.912099]  ? warn_alloc+0x120/0x120
[  397.916480] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  397.931571]  ? print_usage_bug+0xc0/0xc0
[  397.936402] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  397.951841]  ? warn_alloc+0x120/0x120
[  397.955625] 376 total pagecache pages
[  397.964468]  ? warn_alloc+0x120/0x120
[  397.968518] 0 pages in swap cache
[  397.977094]  ? print_usage_bug+0xc0/0xc0
[  397.980874] Swap cache stats: add 0, delete 0, find 0/0
[  397.984680]  ? kvm_clock_read+0x18/0x30
[  397.988448] Free swap  = 0kB
[  397.988457] Total swap = 0kB
[  397.991919]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  397.995955] 1965979 pages RAM
[  398.001327]  ? print_usage_bug+0xc0/0xc0
[  398.005276] 0 pages HighMem/MovableOnly
[  398.008294]  ? __lock_acquire+0x62f/0x4c20
[  398.011289] 342854 pages reserved
[  398.016327]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  398.019420] 0 pages cma reserved
[  398.023487]  ? should_fail+0x22d/0xd01
[  398.027515] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  398.031668]  ? __lock_acquire+0x62f/0x4c20
[  398.031685]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  398.031699]  ? __lock_acquire+0x62f/0x4c20
[  398.031716]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  398.035211] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  398.040681]  ? __lock_acquire+0x62f/0x4c20
[  398.040714]  ? should_fail+0x22d/0xd01
[  398.044079] syz-fuzzer cpuset=/ mems_allowed=0
[  398.047969]  ? mark_held_locks+0x130/0x130
[  398.100196]  ? mark_held_locks+0x130/0x130
[  398.104469]  ? zap_class+0x640/0x640
[  398.108196]  ? print_usage_bug+0xc0/0xc0
[  398.112270]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.117823]  ? check_preemption_disabled+0x48/0x280
[  398.122858]  ? __lock_is_held+0xb5/0x140
[  398.126946]  __alloc_pages_nodemask+0xad8/0xea0
[  398.131623]  ? zap_class+0x640/0x640
[  398.135366]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  398.140401]  ? find_held_lock+0x36/0x1c0
[  398.144480]  ? ____cache_alloc_node+0x1c7/0x1e0
[  398.149158]  ? lock_downgrade+0x900/0x900
[  398.153330]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.158915]  cache_grow_begin+0xa5/0x8c0
[  398.162985]  ? do_raw_spin_unlock+0xa7/0x330
[  398.167406]  fallback_alloc+0x204/0x2e0
[  398.171400]  ____cache_alloc_node+0x1c7/0x1e0
[  398.175914]  kmem_cache_alloc_node+0xe3/0x730
[  398.180421]  ? ipv6_get_ifaddr+0x42e/0x620
[  398.184671]  __alloc_skb+0x119/0x770
[  398.188395]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  398.193682]  ? netdev_alloc_frag+0x1f0/0x1f0
[  398.198101]  ? lock_downgrade+0x900/0x900
[  398.202263]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.207812]  ? refcount_sub_and_test_checked+0x203/0x310
[  398.213275]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  398.218737]  ? addrconf_rs_timer+0x690/0x690
[  398.223170]  ndisc_alloc_skb+0x144/0x340
[  398.227246]  ndisc_send_rs+0x331/0x6e0
[  398.231149]  addrconf_rs_timer+0x314/0x690
[  398.235394]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  398.239653]  call_timer_fn+0x272/0x920
[  398.243554]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  398.247797]  ? process_timeout+0x40/0x40
[  398.251901]  ? __run_timers+0x7da/0xc70
[  398.255880]  ? _raw_spin_unlock_irq+0x27/0x80
[  398.260401]  ? _raw_spin_unlock_irq+0x27/0x80
[  398.264929]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  398.269200]  ? lockdep_hardirqs_on+0x296/0x5b0
[  398.273810]  ? trace_hardirqs_on+0xbd/0x310
[  398.278143]  ? kasan_check_read+0x11/0x20
[  398.282304]  ? __run_timers+0x7da/0xc70
[  398.286289]  ? trace_hardirqs_off_caller+0x310/0x310
[  398.291412]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  398.295658]  __run_timers+0x7e5/0xc70
[  398.299475]  ? timer_fixup_init+0x70/0x70
[  398.303634]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  398.308656]  ? zap_class+0x640/0x640
[  398.312877]  ? enqueue_hrtimer+0x1a5/0x560
[  398.317125]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  398.322327]  ? find_held_lock+0x36/0x1c0
[  398.326401]  ? zap_class+0x640/0x640
[  398.330123]  ? pvclock_read_flags+0x160/0x160
[  398.334627]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.340181]  ? check_preemption_disabled+0x48/0x280
[  398.345222]  ? __lock_is_held+0xb5/0x140
[  398.349290]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.354832]  ? check_preemption_disabled+0x48/0x280
[  398.359858]  run_timer_softirq+0x52/0xb0
[  398.363929]  ? rcu_read_lock_sched_held+0x14f/0x180
[  398.368952]  __do_softirq+0x308/0xb7e
[  398.372810]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  398.378045]  ? lock_downgrade+0x900/0x900
[  398.382207]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  398.387323]  ? pvclock_read_flags+0x160/0x160
[  398.391841]  ? lapic_next_event+0x5a/0x90
[  398.396009]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.401569]  ? kvm_clock_read+0x18/0x30
[  398.405550]  ? kvm_sched_clock_read+0x9/0x20
[  398.409969]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.415606]  ? check_preemption_disabled+0x48/0x280
[  398.420639]  irq_exit+0x17f/0x1c0
[  398.424122]  smp_apic_timer_interrupt+0x1cb/0x760
[  398.429033]  ? smp_reschedule_interrupt+0x109/0x650
[  398.434083]  ? smp_call_function_single_interrupt+0x650/0x650
[  398.440018]  ? interrupt_entry+0xb5/0xc0
[  398.444122]  ? trace_hardirqs_off_caller+0xbb/0x310
[  398.449143]  ? trace_hardirqs_off_caller+0xbb/0x310
[  398.454165]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  398.459072]  ? trace_hardirqs_on_caller+0x310/0x310
[  398.464129]  ? trace_hardirqs_on_caller+0x310/0x310
[  398.469154]  ? task_prio+0x50/0x50
[  398.472707]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.478267]  ? check_preemption_disabled+0x48/0x280
[  398.483311]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  398.488179]  apic_timer_interrupt+0xf/0x20
[  398.492408]  </IRQ>
[  398.494655] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  398.499590] 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 42 f3
[  398.518501] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  398.526227] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  398.533521] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  398.540823] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  398.548107] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  398.555392] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  398.562747]  skb_clone+0x1bb/0x500
[  398.566304]  ? skb_split+0x11e0/0x11e0
[  398.570199]  ? check_preemption_disabled+0x48/0x280
[  398.575249]  ? __this_cpu_preempt_check+0x1c/0x20
[  398.580101]  ? __bpf_redirect+0x55b/0xb60
[  398.584257]  ? __switch_to_asm+0x34/0x70
[  398.588318]  ? __switch_to_asm+0x40/0x70
[  398.592393]  bpf_clone_redirect+0xb9/0x490
[  398.596644]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  398.601672]  ? __sched_text_start+0x8/0x8
[  398.605838]  ? find_held_lock+0x36/0x1c0
[  398.609932]  ? lock_acquire+0x1ed/0x520
[  398.613914]  ? bpf_test_run+0x3cb/0x780
[  398.617902]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.623451]  ? check_preemption_disabled+0x48/0x280
[  398.628478]  ? kasan_check_read+0x11/0x20
[  398.632634]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  398.637920]  ? rcu_softirq_qs+0x20/0x20
[  398.641905]  ? preempt_schedule+0x4d/0x60
[  398.646064]  ? ___preempt_schedule+0x16/0x18
[  398.650498]  ? bpf_test_run+0x25d/0x780
[  398.654501]  ? netlink_diag_dump+0x2a0/0x2a0
[  398.658920]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  398.664478]  ? bpf_test_init.isra.10+0x70/0x100
[  398.669164]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  398.673946]  ? bpf_test_finish.isra.9+0x260/0x260
[  398.678796]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  398.684351]  ? fput+0x130/0x1a0
[  398.687649]  ? __bpf_prog_get+0x9b/0x290
[  398.691727]  ? bpf_test_finish.isra.9+0x260/0x260
[  398.696584]  ? bpf_prog_test_run+0x130/0x1a0
[  398.701009]  ? __x64_sys_bpf+0x3db/0x520
[  398.705083]  ? bpf_prog_get+0x20/0x20
[  398.708917]  ? do_syscall_64+0x1b9/0x820
[  398.712985]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  398.718373]  ? syscall_return_slowpath+0x5e0/0x5e0
[  398.723308]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  398.728161]  ? trace_hardirqs_on_caller+0x310/0x310
[  398.733194]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  398.738221]  ? prepare_exit_to_usermode+0x291/0x3b0
[  398.743343]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  398.748252]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  398.753646] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  398.753712] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  398.760665] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  398.760671] Call Trace:
[  398.760677]  <IRQ>
[  398.760699]  dump_stack+0x244/0x39d
[  398.760716]  ? dump_stack_print_info.cold.1+0x20/0x20
[  398.760742]  warn_alloc.cold.116+0xb7/0x1bd
[  398.767282] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  398.776586]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  398.779153] syz-executor0 cpuset=syz0 mems_allowed=0
[  398.781301]  ? lock_downgrade+0x900/0x900
[  398.818960]  ? trace_hardirqs_off+0xb8/0x310
[  398.823393]  ? trace_hardirqs_off+0xb8/0x310
[  398.827820]  __alloc_pages_slowpath+0x2651/0x2de0
[  398.832703]  ? warn_alloc+0x120/0x120
[  398.836517]  ? print_usage_bug+0xc0/0xc0
[  398.840589]  ? warn_alloc+0x120/0x120
[  398.844409]  ? warn_alloc+0x120/0x120
[  398.848221]  ? print_usage_bug+0xc0/0xc0
[  398.852293]  ? print_usage_bug+0xc0/0xc0
[  398.856363]  ? __lock_acquire+0x62f/0x4c20
[  398.860612]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  398.866160]  ? should_fail+0x22d/0xd01
[  398.870065]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  398.875178]  ? __lock_acquire+0x62f/0x4c20
[  398.879430]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  398.884539]  ? __lock_acquire+0x62f/0x4c20
[  398.888777]  ? should_fail+0x22d/0xd01
[  398.892672]  ? find_held_lock+0x36/0x1c0
[  398.896749]  ? mark_held_locks+0x130/0x130
[  398.901034]  ? mark_held_locks+0x130/0x130
[  398.905277]  ? zap_class+0x640/0x640
[  398.909002]  ? zap_class+0x640/0x640
[  398.912731]  ? print_usage_bug+0xc0/0xc0
[  398.916810]  ? do_raw_spin_unlock+0xa7/0x330
[  398.921252]  ? zap_class+0x640/0x640
[  398.924964]  ? print_usage_bug+0xc0/0xc0
[  398.929031]  ? wq_watchdog_touch+0x9c/0xfe
[  398.933276]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.938826]  ? check_preemption_disabled+0x48/0x280
[  398.943858]  ? __lock_is_held+0xb5/0x140
[  398.947934]  __alloc_pages_nodemask+0xad8/0xea0
[  398.952628]  ? zap_class+0x640/0x640
[  398.956356]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  398.961417]  ? find_held_lock+0x36/0x1c0
[  398.965498]  ? ____cache_alloc_node+0x1c7/0x1e0
[  398.970175]  ? lock_downgrade+0x900/0x900
[  398.974334]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.979897]  cache_grow_begin+0xa5/0x8c0
[  398.983958]  ? do_raw_spin_unlock+0xa7/0x330
[  398.988379]  fallback_alloc+0x204/0x2e0
[  398.992368]  ____cache_alloc_node+0x1c7/0x1e0
[  398.996874]  kmem_cache_alloc_node+0xe3/0x730
[  399.001405]  ? ipv6_get_ifaddr+0x42e/0x620
[  399.005660]  __alloc_skb+0x119/0x770
[  399.009378]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  399.014676]  ? netdev_alloc_frag+0x1f0/0x1f0
[  399.019184]  ? lock_downgrade+0x900/0x900
[  399.023408]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.028951]  ? refcount_sub_and_test_checked+0x203/0x310
[  399.034420]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  399.039882]  ? addrconf_rs_timer+0x690/0x690
[  399.044314]  ndisc_alloc_skb+0x144/0x340
[  399.048401]  ndisc_send_rs+0x331/0x6e0
[  399.052300]  addrconf_rs_timer+0x314/0x690
[  399.056547]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  399.060814]  call_timer_fn+0x272/0x920
[  399.064723]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  399.068967]  ? process_timeout+0x40/0x40
[  399.073061]  ? mark_held_locks+0xc7/0x130
[  399.077222]  ? _raw_spin_unlock_irq+0x27/0x80
[  399.081726]  ? _raw_spin_unlock_irq+0x27/0x80
[  399.086238]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  399.090480]  ? lockdep_hardirqs_on+0x296/0x5b0
[  399.095069]  ? trace_hardirqs_on+0xbd/0x310
[  399.099403]  ? kasan_check_read+0x11/0x20
[  399.103555]  ? __run_timers+0x7da/0xc70
[  399.107532]  ? trace_hardirqs_off_caller+0x310/0x310
[  399.112646]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  399.116942]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  399.121179]  __run_timers+0x7e5/0xc70
[  399.124995]  ? timer_fixup_init+0x70/0x70
[  399.129160]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  399.134181]  ? zap_class+0x640/0x640
[  399.137915]  ? print_usage_bug+0xc0/0xc0
[  399.141995]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  399.147209]  ? find_held_lock+0x36/0x1c0
[  399.151285]  ? zap_class+0x640/0x640
[  399.155098]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.160646]  ? check_preemption_disabled+0x48/0x280
[  399.165682]  ? __lock_is_held+0xb5/0x140
[  399.169752]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.175297]  ? check_preemption_disabled+0x48/0x280
[  399.180770]  run_timer_softirq+0x52/0xb0
[  399.184840]  ? rcu_read_lock_sched_held+0x14f/0x180
[  399.189866]  __do_softirq+0x308/0xb7e
[  399.193675]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  399.198178]  ? lock_downgrade+0x900/0x900
[  399.202337]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  399.207456]  ? pvclock_read_flags+0x160/0x160
[  399.211959]  ? lapic_next_event+0x5a/0x90
[  399.216120]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.221670]  ? kvm_clock_read+0x18/0x30
[  399.225653]  ? kvm_sched_clock_read+0x9/0x20
[  399.230071]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  399.235617]  ? check_preemption_disabled+0x48/0x280
[  399.240655]  irq_exit+0x17f/0x1c0
[  399.244120]  smp_apic_timer_interrupt+0x1cb/0x760
[  399.248964]  ? smp_reschedule_interrupt+0x109/0x650
[  399.253991]  ? smp_call_function_single_interrupt+0x650/0x650
[  399.259894]  ? interrupt_entry+0xb5/0xc0
[  399.263963]  ? trace_hardirqs_off_caller+0xbb/0x310
[  399.268983]  ? trace_hardirqs_off_caller+0xbb/0x310
[  399.274016]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  399.278882]  ? trace_hardirqs_on_caller+0x310/0x310
[  399.283904]  ? trace_hardirqs_on_caller+0x310/0x310
[  399.288940]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  399.293801]  apic_timer_interrupt+0xf/0x20
[  399.298055]  </IRQ>
[  399.300300] RIP: 0010:dump_stack+0x358/0x39d
[  399.304708] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  399.323612] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  399.331318] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  399.338586] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  399.345854] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  399.353122] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  399.360396] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  399.367690]  ? dump_stack+0x34f/0x39d
[  399.371509]  ? dump_stack_print_info.cold.1+0x20/0x20
[  399.376707]  ? mark_held_locks+0x130/0x130
[  399.380954]  ? mark_held_locks+0x130/0x130
[  399.385205]  dump_header+0x27b/0xf72
[  399.388931]  ? pagefault_out_of_memory+0x197/0x197
[  399.393872]  ? __lock_acquire+0x62f/0x4c20
[  399.398111]  ? percpu_ref_get_many+0x240/0x240
[  399.402699]  ? print_usage_bug+0xc0/0xc0
[  399.406769]  ? zap_class+0x640/0x640
[  399.410484]  ? print_usage_bug+0xc0/0xc0
[  399.414548]  ? print_usage_bug+0xc0/0xc0
[  399.418610]  ? zap_class+0x640/0x640
[  399.422330]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.427869]  ? find_held_lock+0x36/0x1c0
[  399.431938]  ? mark_held_locks+0xc7/0x130
[  399.436093]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  399.441194]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  399.446297]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  399.450897]  ? trace_hardirqs_on+0xbd/0x310
[  399.455236]  ? kasan_check_read+0x11/0x20
[  399.459382]  ? ___ratelimit+0x3b4/0x672
[  399.463365]  ? trace_hardirqs_off_caller+0x310/0x310
[  399.468491]  ? trace_hardirqs_on+0x310/0x310
[  399.472897]  ? lock_downgrade+0x900/0x900
[  399.477053]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  399.482163]  ? ___ratelimit+0x3b9/0x672
[  399.486145]  ? idr_get_free+0xf70/0xf70
[  399.490118]  ? find_held_lock+0x36/0x1c0
[  399.494190]  oom_kill_process.cold.27+0x10/0x903
[  399.498950]  ? zap_class+0x640/0x640
[  399.502691]  ? check_preemption_disabled+0x48/0x280
[  399.507716]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  399.512646]  ? kasan_check_read+0x11/0x20
[  399.516794]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  399.522075]  ? oom_evaluate_task+0x540/0x540
[  399.526491]  ? find_held_lock+0x36/0x1c0
[  399.530558]  ? out_of_memory+0x974/0x1430
[  399.534707]  ? lock_downgrade+0x900/0x900
[  399.538856]  ? check_preemption_disabled+0x48/0x280
[  399.543878]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  399.548808]  ? kasan_check_read+0x11/0x20
[  399.552954]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  399.558230]  ? rcu_softirq_qs+0x20/0x20
[  399.562213]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  399.567749]  ? oom_evaluate_task+0x302/0x540
[  399.572163]  out_of_memory+0xa84/0x1430
[  399.576178]  ? oom_killer_disable+0x3a0/0x3a0
[  399.580687]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  399.585618]  ? __ww_mutex_check_waiters+0x160/0x160
[  399.590650]  __alloc_pages_slowpath+0x232c/0x2de0
[  399.595523]  ? warn_alloc+0x120/0x120
[  399.599324]  ? mark_held_locks+0x130/0x130
[  399.603566]  ? find_get_entry+0xaae/0x1120
[  399.607822]  ? filemap_map_pages+0x1a20/0x1a20
[  399.612411]  ? zap_class+0x640/0x640
[  399.616132]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.621667]  ? check_preemption_disabled+0x48/0x280
[  399.626685]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  399.632225]  ? should_fail+0x22d/0xd01
[  399.636134]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  399.641254]  ? zap_class+0x640/0x640
[  399.644993]  ? __lock_is_held+0xb5/0x140
[  399.649067]  ? mark_held_locks+0x130/0x130
[  399.653307]  ? lock_release+0xa00/0xa00
[  399.657280]  ? perf_trace_sched_process_exec+0x860/0x860
[  399.662728]  ? xa_load+0x2ba/0x460
[  399.666271]  ? lock_downgrade+0x900/0x900
[  399.670425]  ? __might_sleep+0x95/0x190
[  399.674436]  __alloc_pages_nodemask+0xad8/0xea0
[  399.679114]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  399.684135]  ? __page_cache_alloc+0x191/0x5c0
[  399.688628]  ? xa_load+0x2e1/0x460
[  399.692172]  ? xa_clear_mark+0x40/0x40
[  399.696063]  ? zap_class+0x640/0x640
[  399.699796]  ? zap_class+0x640/0x640
[  399.703511]  ? zap_class+0x640/0x640
[  399.707224]  ? __do_page_cache_readahead+0x663/0x810
[  399.712337]  ? find_held_lock+0x36/0x1c0
[  399.716408]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  399.721956]  alloc_pages_current+0x173/0x350
[  399.726368]  __page_cache_alloc+0x38c/0x5c0
[  399.730698]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  399.735627]  ? kasan_check_read+0x11/0x20
[  399.739776]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  399.745073]  ? generic_perform_write+0x6a0/0x6a0
[  399.749842]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  399.755379]  ? check_preemption_disabled+0x48/0x280
[  399.760415]  filemap_fault+0x1595/0x25f0
[  399.764505]  ? __lock_page_or_retry+0xa00/0xa00
[  399.769176]  ? mark_held_locks+0x130/0x130
[  399.773426]  ? filemap_map_pages+0xd6b/0x1a20
[  399.777920]  ? lock_downgrade+0x900/0x900
[  399.782070]  ? check_preemption_disabled+0x48/0x280
[  399.787089]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  399.792033]  ? kasan_check_read+0x11/0x20
[  399.796179]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  399.801455]  ? rcu_softirq_qs+0x20/0x20
[  399.805442]  ? filemap_map_pages+0xd92/0x1a20
[  399.809949]  ? find_get_entries_tag+0x1400/0x1400
[  399.814795]  ? debug_object_destroy+0x2b0/0x2b0
[  399.819469]  ? lock_pi_update_atomic+0x150/0x150
[  399.824223]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.829771]  ? lock_acquire+0x1ed/0x520
[  399.833744]  ? ext4_filemap_fault+0x7a/0xad
[  399.838072]  ? lock_release+0xa00/0xa00
[  399.842052]  ? perf_trace_sched_process_exec+0x860/0x860
[  399.847511]  ? print_usage_bug+0xc0/0xc0
[  399.851575]  ? print_usage_bug+0xc0/0xc0
[  399.855645]  ? down_read+0x8d/0x120
[  399.859296]  ? ext4_filemap_fault+0x7a/0xad
[  399.863615]  ? __down_interruptible+0x700/0x700
[  399.868297]  ext4_filemap_fault+0x82/0xad
[  399.872452]  __do_fault+0x100/0x6b0
[  399.876091]  ? find_held_lock+0x36/0x1c0
[  399.880184]  ? pmd_devmap_trans_unstable+0x220/0x220
[  399.885303]  ? mark_held_locks+0x130/0x130
[  399.889542]  ? mark_held_locks+0x130/0x130
[  399.893793]  ? debug_smp_processor_id+0x1c/0x20
[  399.898459]  ? perf_trace_lock+0x14d/0x7a0
[  399.902698]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  399.908246]  __handle_mm_fault+0x3ea0/0x5be0
[  399.912668]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  399.917515]  ? lock_is_held_type+0x210/0x210
[  399.921927]  ? __switch_to_asm+0x34/0x70
[  399.926015]  ? __switch_to_asm+0x34/0x70
[  399.930124]  ? zap_class+0x640/0x640
[  399.933835]  ? zap_class+0x640/0x640
[  399.937550]  ? __x64_sys_futex+0x53e/0x6a0
[  399.941806]  ? find_held_lock+0x36/0x1c0
[  399.945889]  ? handle_mm_fault+0x42a/0xc70
[  399.950123]  ? lock_downgrade+0x900/0x900
[  399.954288]  ? check_preemption_disabled+0x48/0x280
[  399.959304]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  399.964244]  ? kasan_check_read+0x11/0x20
[  399.968408]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  399.973701]  ? rcu_softirq_qs+0x20/0x20
[  399.977673]  ? trace_hardirqs_off_caller+0x310/0x310
[  399.982779]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  399.988318]  ? check_preemption_disabled+0x48/0x280
[  399.993344]  handle_mm_fault+0x54f/0xc70
[  399.997419]  ? __handle_mm_fault+0x5be0/0x5be0
[  400.002004]  ? find_vma+0x34/0x190
[  400.005556]  __do_page_fault+0x5e8/0xe60
[  400.009626]  ? trace_hardirqs_off+0xb8/0x310
[  400.014055]  do_page_fault+0xf2/0x7e0
[  400.017859]  ? vmalloc_sync_all+0x30/0x30
[  400.022051]  ? error_entry+0x70/0xd0
[  400.025768]  ? trace_hardirqs_off_caller+0xbb/0x310
[  400.030783]  ? trace_hardirqs_on_caller+0xc0/0x310
[  400.035714]  ? syscall_return_slowpath+0x5e0/0x5e0
[  400.040646]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  400.045489]  ? trace_hardirqs_on_caller+0x310/0x310
[  400.050510]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  400.055967]  ? prepare_exit_to_usermode+0x291/0x3b0
[  400.060986]  ? page_fault+0x8/0x30
[  400.064526]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  400.069392]  ? page_fault+0x8/0x30
[  400.072978]  page_fault+0x1e/0x30
[  400.076432] RIP: 0033:0x45ddf3
[  400.079634] Code: Bad RIP value.
[  400.082997] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  400.088365] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  400.095639] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  400.102906] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  400.110204] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  400.117468] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  400.124765] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  400.124770] warn_alloc_show_mem: 1 callbacks suppressed
[  400.124777] Mem-Info:
[  400.132152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  400.137533] active_anon:45985 inactive_anon:296 isolated_anon:0
[  400.137533]  active_file:15 inactive_file:8 isolated_file:0
[  400.137533]  unevictable:0 dirty:0 writeback:0 unstable:0
[  400.137533]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  400.137533]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  400.137533]  free:13771 free_pcp:249 free_cma:0
[  400.139903] Call Trace:
[  400.149301] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  400.182055]  <IRQ>
[  400.184627] 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
[  400.212308]  dump_stack+0x244/0x39d
[  400.214425] lowmem_reserve[]: 0 2818 6321 6321
[  400.240566]  ? dump_stack_print_info.cold.1+0x20/0x20
[  400.244165] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  400.248747]  warn_alloc.cold.116+0xb7/0x1bd
[  400.253893] lowmem_reserve[]: 0 0 3503 3503
[  400.281396]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  400.285693] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  400.290031]  ? lock_downgrade+0x900/0x900
[  400.294845] lowmem_reserve[]: 0 0 0 0
[  400.324341]  ? trace_hardirqs_off+0xb8/0x310
[  400.328463] 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
[  400.332264]  ? trace_hardirqs_off+0xb8/0x310
[  400.336816] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  400.350344]  __alloc_pages_slowpath+0x2651/0x2de0
[  400.354719] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  400.369861]  ? warn_alloc+0x120/0x120
[  400.374661] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  400.390155]  ? print_usage_bug+0xc0/0xc0
[  400.393966] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  400.402830]  ? warn_alloc+0x120/0x120
[  400.406868] 376 total pagecache pages
[  400.415471]  ? warn_alloc+0x120/0x120
[  400.419255] 0 pages in swap cache
[  400.423055]  ? print_usage_bug+0xc0/0xc0
[  400.426844] Swap cache stats: add 0, delete 0, find 0/0
[  400.430295]  ? print_usage_bug+0xc0/0xc0
[  400.434324] Free swap  = 0kB
[  400.439684]  ? __lock_acquire+0x62f/0x4c20
[  400.443714] Total swap = 0kB
[  400.443723] 1965979 pages RAM
[  400.446757]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  400.450976] 0 pages HighMem/MovableOnly
[  400.453992]  ? should_fail+0x22d/0xd01
[  400.457069] 342854 pages reserved
[  400.462611]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  400.466559] 0 pages cma reserved
[  400.470451]  ? __lock_acquire+0x62f/0x4c20
[  400.473945] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  400.478988]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  400.479004]  ? __lock_acquire+0x62f/0x4c20
[  400.479020]  ? should_fail+0x22d/0xd01
[  400.482468] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  400.486627]  ? find_held_lock+0x36/0x1c0
[  400.493100] syz-fuzzer cpuset=/ mems_allowed=0
[  400.498209]  ? mark_held_locks+0x130/0x130
[  400.529406]  ? mark_held_locks+0x130/0x130
[  400.533649]  ? zap_class+0x640/0x640
[  400.537376]  ? zap_class+0x640/0x640
[  400.541104]  ? print_usage_bug+0xc0/0xc0
[  400.545168]  ? do_raw_spin_unlock+0xa7/0x330
[  400.549593]  ? zap_class+0x640/0x640
[  400.553312]  ? print_usage_bug+0xc0/0xc0
[  400.557411]  ? wq_watchdog_touch+0x9c/0xfe
[  400.561659]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.567214]  ? check_preemption_disabled+0x48/0x280
[  400.572254]  ? __lock_is_held+0xb5/0x140
[  400.576335]  __alloc_pages_nodemask+0xad8/0xea0
[  400.581036]  ? zap_class+0x640/0x640
[  400.584770]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  400.589810]  ? find_held_lock+0x36/0x1c0
[  400.593896]  ? ____cache_alloc_node+0x1c7/0x1e0
[  400.598576]  ? lock_downgrade+0x900/0x900
[  400.602739]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.608290]  cache_grow_begin+0xa5/0x8c0
[  400.612363]  ? do_raw_spin_unlock+0xa7/0x330
[  400.616790]  fallback_alloc+0x204/0x2e0
[  400.620782]  ____cache_alloc_node+0x1c7/0x1e0
[  400.625289]  kmem_cache_alloc_node+0xe3/0x730
[  400.629800]  ? ipv6_get_ifaddr+0x42e/0x620
[  400.634064]  __alloc_skb+0x119/0x770
[  400.637792]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  400.643084]  ? netdev_alloc_frag+0x1f0/0x1f0
[  400.647504]  ? lock_downgrade+0x900/0x900
[  400.651676]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.657225]  ? refcount_sub_and_test_checked+0x203/0x310
[  400.662700]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  400.668175]  ? addrconf_rs_timer+0x690/0x690
[  400.672611]  ndisc_alloc_skb+0x144/0x340
[  400.676696]  ndisc_send_rs+0x331/0x6e0
[  400.680600]  addrconf_rs_timer+0x314/0x690
[  400.684851]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.689108]  call_timer_fn+0x272/0x920
[  400.693008]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.697254]  ? process_timeout+0x40/0x40
[  400.701329]  ? __run_timers+0x7da/0xc70
[  400.705315]  ? _raw_spin_unlock_irq+0x27/0x80
[  400.709850]  ? _raw_spin_unlock_irq+0x27/0x80
[  400.714398]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.718645]  ? lockdep_hardirqs_on+0x296/0x5b0
[  400.723236]  ? trace_hardirqs_on+0xbd/0x310
[  400.727561]  ? kasan_check_read+0x11/0x20
[  400.731713]  ? __run_timers+0x7da/0xc70
[  400.735695]  ? trace_hardirqs_off_caller+0x310/0x310
[  400.740841]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.745091]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.749328]  __run_timers+0x7e5/0xc70
[  400.753143]  ? timer_fixup_init+0x70/0x70
[  400.757300]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  400.762408]  ? zap_class+0x640/0x640
[  400.766144]  ? enqueue_hrtimer+0x1a5/0x560
[  400.770390]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  400.775592]  ? find_held_lock+0x36/0x1c0
[  400.779661]  ? zap_class+0x640/0x640
[  400.783382]  ? pvclock_read_flags+0x160/0x160
[  400.787884]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.793433]  ? check_preemption_disabled+0x48/0x280
[  400.798470]  ? __lock_is_held+0xb5/0x140
[  400.802544]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.808095]  ? check_preemption_disabled+0x48/0x280
[  400.813126]  run_timer_softirq+0x52/0xb0
[  400.817196]  ? rcu_read_lock_sched_held+0x14f/0x180
[  400.822219]  __do_softirq+0x308/0xb7e
[  400.826038]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  400.830540]  ? lock_downgrade+0x900/0x900
[  400.834702]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  400.839834]  ? pvclock_read_flags+0x160/0x160
[  400.844338]  ? lapic_next_event+0x5a/0x90
[  400.848493]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.854050]  ? kvm_clock_read+0x18/0x30
[  400.858042]  ? kvm_sched_clock_read+0x9/0x20
[  400.862457]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.868001]  ? check_preemption_disabled+0x48/0x280
[  400.873073]  irq_exit+0x17f/0x1c0
[  400.876566]  smp_apic_timer_interrupt+0x1cb/0x760
[  400.881420]  ? smp_reschedule_interrupt+0x109/0x650
[  400.886451]  ? smp_call_function_single_interrupt+0x650/0x650
[  400.892347]  ? interrupt_entry+0xb5/0xc0
[  400.896423]  ? trace_hardirqs_off_caller+0xbb/0x310
[  400.901451]  ? trace_hardirqs_off_caller+0xbb/0x310
[  400.906481]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  400.911336]  ? trace_hardirqs_on_caller+0x310/0x310
[  400.916359]  ? trace_hardirqs_on_caller+0x310/0x310
[  400.921386]  ? task_prio+0x50/0x50
[  400.924971]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.930520]  ? check_preemption_disabled+0x48/0x280
[  400.935550]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  400.940412]  apic_timer_interrupt+0xf/0x20
[  400.944645]  </IRQ>
[  400.946902] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  400.951848] 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 42 f3
[  400.970901] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  400.978625] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  400.985911] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  400.993193] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  401.000474] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  401.007756] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  401.015085]  skb_clone+0x1bb/0x500
[  401.018636]  ? skb_split+0x11e0/0x11e0
[  401.022528]  ? check_preemption_disabled+0x48/0x280
[  401.027577]  ? __this_cpu_preempt_check+0x1c/0x20
[  401.032439]  ? __bpf_redirect+0x55b/0xb60
[  401.036591]  ? __switch_to_asm+0x34/0x70
[  401.040654]  ? __switch_to_asm+0x40/0x70
[  401.044724]  bpf_clone_redirect+0xb9/0x490
[  401.048975]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  401.054007]  ? __sched_text_start+0x8/0x8
[  401.058183]  ? find_held_lock+0x36/0x1c0
[  401.062256]  ? lock_acquire+0x1ed/0x520
[  401.066235]  ? bpf_test_run+0x3cb/0x780
[  401.070235]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.075827]  ? check_preemption_disabled+0x48/0x280
[  401.080863]  ? kasan_check_read+0x11/0x20
[  401.085023]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  401.090318]  ? rcu_softirq_qs+0x20/0x20
[  401.094303]  ? preempt_schedule+0x4d/0x60
[  401.098476]  ? ___preempt_schedule+0x16/0x18
[  401.102909]  ? bpf_test_run+0x25d/0x780
[  401.106909]  ? netlink_diag_dump+0x2a0/0x2a0
[  401.111327]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  401.116893]  ? bpf_test_init.isra.10+0x70/0x100
[  401.121576]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  401.126349]  ? bpf_test_finish.isra.9+0x260/0x260
[  401.131196]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  401.136796]  ? fput+0x130/0x1a0
[  401.140112]  ? __bpf_prog_get+0x9b/0x290
[  401.144192]  ? bpf_test_finish.isra.9+0x260/0x260
[  401.149069]  ? bpf_prog_test_run+0x130/0x1a0
[  401.153495]  ? __x64_sys_bpf+0x3db/0x520
[  401.157562]  ? bpf_prog_get+0x20/0x20
[  401.161393]  ? do_syscall_64+0x1b9/0x820
[  401.165459]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  401.170841]  ? syscall_return_slowpath+0x5e0/0x5e0
[  401.175774]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  401.180905]  ? trace_hardirqs_on_caller+0x310/0x310
[  401.185928]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  401.190971]  ? prepare_exit_to_usermode+0x291/0x3b0
[  401.196005]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  401.200872]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  401.206267] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  401.206342] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  401.213284] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  401.213290] Call Trace:
[  401.213297]  <IRQ>
[  401.213317]  dump_stack+0x244/0x39d
[  401.213335]  ? dump_stack_print_info.cold.1+0x20/0x20
[  401.213361]  warn_alloc.cold.116+0xb7/0x1bd
[  401.220007] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  401.229236]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  401.231798] syz-executor0 cpuset=syz0 mems_allowed=0
[  401.233942]  ? lock_downgrade+0x900/0x900
[  401.271587]  ? trace_hardirqs_off+0xb8/0x310
[  401.276012]  ? trace_hardirqs_off+0xb8/0x310
[  401.280443]  __alloc_pages_slowpath+0x2651/0x2de0
[  401.285318]  ? warn_alloc+0x120/0x120
[  401.289122]  ? print_usage_bug+0xc0/0xc0
[  401.293185]  ? warn_alloc+0x120/0x120
[  401.297003]  ? warn_alloc+0x120/0x120
[  401.300824]  ? print_usage_bug+0xc0/0xc0
[  401.304915]  ? print_usage_bug+0xc0/0xc0
[  401.309005]  ? __lock_acquire+0x62f/0x4c20
[  401.313267]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  401.318803]  ? should_fail+0x22d/0xd01
[  401.322696]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  401.327817]  ? __lock_acquire+0x62f/0x4c20
[  401.332061]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  401.337163]  ? __lock_acquire+0x62f/0x4c20
[  401.341418]  ? should_fail+0x22d/0xd01
[  401.345304]  ? find_held_lock+0x36/0x1c0
[  401.349410]  ? mark_held_locks+0x130/0x130
[  401.353650]  ? mark_held_locks+0x130/0x130
[  401.357897]  ? zap_class+0x640/0x640
[  401.361628]  ? zap_class+0x640/0x640
[  401.365347]  ? print_usage_bug+0xc0/0xc0
[  401.369410]  ? do_raw_spin_unlock+0xa7/0x330
[  401.373820]  ? zap_class+0x640/0x640
[  401.377538]  ? print_usage_bug+0xc0/0xc0
[  401.381603]  ? wq_watchdog_touch+0x9c/0xfe
[  401.385846]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.391395]  ? check_preemption_disabled+0x48/0x280
[  401.396429]  ? __lock_is_held+0xb5/0x140
[  401.400504]  __alloc_pages_nodemask+0xad8/0xea0
[  401.405219]  ? zap_class+0x640/0x640
[  401.408966]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  401.414016]  ? find_held_lock+0x36/0x1c0
[  401.418102]  ? ____cache_alloc_node+0x1c7/0x1e0
[  401.422791]  ? lock_downgrade+0x900/0x900
[  401.426992]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.432546]  cache_grow_begin+0xa5/0x8c0
[  401.436613]  ? do_raw_spin_unlock+0xa7/0x330
[  401.441098]  fallback_alloc+0x204/0x2e0
[  401.445080]  ____cache_alloc_node+0x1c7/0x1e0
[  401.449599]  kmem_cache_alloc_node+0xe3/0x730
[  401.454097]  ? ipv6_get_ifaddr+0x42e/0x620
[  401.458345]  __alloc_skb+0x119/0x770
[  401.462091]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  401.467382]  ? netdev_alloc_frag+0x1f0/0x1f0
[  401.471830]  ? lock_downgrade+0x900/0x900
[  401.476020]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.481573]  ? refcount_sub_and_test_checked+0x203/0x310
[  401.487042]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  401.492499]  ? addrconf_rs_timer+0x690/0x690
[  401.496924]  ndisc_alloc_skb+0x144/0x340
[  401.501013]  ndisc_send_rs+0x331/0x6e0
[  401.504919]  addrconf_rs_timer+0x314/0x690
[  401.509161]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  401.513413]  call_timer_fn+0x272/0x920
[  401.517318]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  401.521555]  ? process_timeout+0x40/0x40
[  401.525641]  ? mark_held_locks+0xc7/0x130
[  401.529794]  ? _raw_spin_unlock_irq+0x27/0x80
[  401.534297]  ? _raw_spin_unlock_irq+0x27/0x80
[  401.538798]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  401.543047]  ? lockdep_hardirqs_on+0x296/0x5b0
[  401.547636]  ? trace_hardirqs_on+0xbd/0x310
[  401.551969]  ? kasan_check_read+0x11/0x20
[  401.556119]  ? __run_timers+0x7da/0xc70
[  401.560093]  ? trace_hardirqs_off_caller+0x310/0x310
[  401.565204]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  401.569450]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  401.573698]  __run_timers+0x7e5/0xc70
[  401.577517]  ? timer_fixup_init+0x70/0x70
[  401.581674]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  401.586698]  ? zap_class+0x640/0x640
[  401.590422]  ? print_usage_bug+0xc0/0xc0
[  401.594488]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  401.599692]  ? find_held_lock+0x36/0x1c0
[  401.603763]  ? zap_class+0x640/0x640
[  401.607491]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.613045]  ? check_preemption_disabled+0x48/0x280
[  401.618079]  ? __lock_is_held+0xb5/0x140
[  401.622148]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.627697]  ? check_preemption_disabled+0x48/0x280
[  401.632739]  run_timer_softirq+0x52/0xb0
[  401.636805]  ? rcu_read_lock_sched_held+0x14f/0x180
[  401.641832]  __do_softirq+0x308/0xb7e
[  401.645643]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  401.650139]  ? lock_downgrade+0x900/0x900
[  401.654313]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  401.659438]  ? pvclock_read_flags+0x160/0x160
[  401.663944]  ? lapic_next_event+0x5a/0x90
[  401.668100]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.673649]  ? kvm_clock_read+0x18/0x30
[  401.677626]  ? kvm_sched_clock_read+0x9/0x20
[  401.682066]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  401.687612]  ? check_preemption_disabled+0x48/0x280
[  401.692643]  irq_exit+0x17f/0x1c0
[  401.696105]  smp_apic_timer_interrupt+0x1cb/0x760
[  401.700964]  ? smp_reschedule_interrupt+0x109/0x650
[  401.705988]  ? smp_call_function_single_interrupt+0x650/0x650
[  401.711886]  ? interrupt_entry+0xb5/0xc0
[  401.715955]  ? trace_hardirqs_off_caller+0xbb/0x310
[  401.720986]  ? trace_hardirqs_off_caller+0xbb/0x310
[  401.726005]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  401.730890]  ? trace_hardirqs_on_caller+0x310/0x310
[  401.735910]  ? trace_hardirqs_on_caller+0x310/0x310
[  401.740967]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  401.745828]  apic_timer_interrupt+0xf/0x20
[  401.750061]  </IRQ>
[  401.752304] RIP: 0010:dump_stack+0x358/0x39d
[  401.756716] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  401.775647] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  401.783378] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  401.790662] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  401.797941] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  401.805236] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  401.812531] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  401.819837]  ? dump_stack+0x34f/0x39d
[  401.823678]  ? dump_stack_print_info.cold.1+0x20/0x20
[  401.828884]  ? mark_held_locks+0x130/0x130
[  401.833129]  ? mark_held_locks+0x130/0x130
[  401.837374]  dump_header+0x27b/0xf72
[  401.841109]  ? pagefault_out_of_memory+0x197/0x197
[  401.846083]  ? __lock_acquire+0x62f/0x4c20
[  401.850333]  ? percpu_ref_get_many+0x240/0x240
[  401.854928]  ? print_usage_bug+0xc0/0xc0
[  401.859004]  ? zap_class+0x640/0x640
[  401.862734]  ? print_usage_bug+0xc0/0xc0
[  401.866801]  ? print_usage_bug+0xc0/0xc0
[  401.870870]  ? zap_class+0x640/0x640
[  401.874597]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.880150]  ? find_held_lock+0x36/0x1c0
[  401.884228]  ? mark_held_locks+0xc7/0x130
[  401.888396]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  401.893514]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  401.898630]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  401.903222]  ? trace_hardirqs_on+0xbd/0x310
[  401.907549]  ? kasan_check_read+0x11/0x20
[  401.911704]  ? ___ratelimit+0x3b4/0x672
[  401.915687]  ? trace_hardirqs_off_caller+0x310/0x310
[  401.920802]  ? trace_hardirqs_on+0x310/0x310
[  401.925220]  ? lock_downgrade+0x900/0x900
[  401.929385]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  401.934506]  ? ___ratelimit+0x3b9/0x672
[  401.938494]  ? idr_get_free+0xf70/0xf70
[  401.942473]  ? find_held_lock+0x36/0x1c0
[  401.946549]  oom_kill_process.cold.27+0x10/0x903
[  401.951320]  ? zap_class+0x640/0x640
[  401.955051]  ? check_preemption_disabled+0x48/0x280
[  401.960083]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  401.965021]  ? kasan_check_read+0x11/0x20
[  401.969183]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  401.974467]  ? oom_evaluate_task+0x540/0x540
[  401.978890]  ? find_held_lock+0x36/0x1c0
[  401.982965]  ? out_of_memory+0x974/0x1430
[  401.987122]  ? lock_downgrade+0x900/0x900
[  401.991277]  ? check_preemption_disabled+0x48/0x280
[  401.996303]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  402.001241]  ? kasan_check_read+0x11/0x20
[  402.005402]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  402.010691]  ? rcu_softirq_qs+0x20/0x20
[  402.014681]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.020242]  ? oom_evaluate_task+0x302/0x540
[  402.024662]  out_of_memory+0xa84/0x1430
[  402.028667]  ? oom_killer_disable+0x3a0/0x3a0
[  402.033169]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  402.038110]  ? __ww_mutex_check_waiters+0x160/0x160
[  402.043150]  __alloc_pages_slowpath+0x232c/0x2de0
[  402.048033]  ? warn_alloc+0x120/0x120
[  402.051856]  ? mark_held_locks+0x130/0x130
[  402.056099]  ? find_get_entry+0xaae/0x1120
[  402.060387]  ? filemap_map_pages+0x1a20/0x1a20
[  402.064987]  ? zap_class+0x640/0x640
[  402.068709]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.074299]  ? check_preemption_disabled+0x48/0x280
[  402.079341]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.084884]  ? should_fail+0x22d/0xd01
[  402.088795]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  402.093903]  ? zap_class+0x640/0x640
[  402.097676]  ? __lock_is_held+0xb5/0x140
[  402.101749]  ? mark_held_locks+0x130/0x130
[  402.105988]  ? lock_release+0xa00/0xa00
[  402.109966]  ? perf_trace_sched_process_exec+0x860/0x860
[  402.115421]  ? xa_load+0x2ba/0x460
[  402.118967]  ? lock_downgrade+0x900/0x900
[  402.123132]  ? __might_sleep+0x95/0x190
[  402.127116]  __alloc_pages_nodemask+0xad8/0xea0
[  402.131798]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  402.136826]  ? __page_cache_alloc+0x191/0x5c0
[  402.141326]  ? xa_load+0x2e1/0x460
[  402.144875]  ? xa_clear_mark+0x40/0x40
[  402.148773]  ? zap_class+0x640/0x640
[  402.152500]  ? zap_class+0x640/0x640
[  402.156219]  ? zap_class+0x640/0x640
[  402.159934]  ? __do_page_cache_readahead+0x663/0x810
[  402.165048]  ? find_held_lock+0x36/0x1c0
[  402.169119]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  402.174672]  alloc_pages_current+0x173/0x350
[  402.179086]  __page_cache_alloc+0x38c/0x5c0
[  402.183411]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  402.188342]  ? kasan_check_read+0x11/0x20
[  402.192489]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  402.197767]  ? generic_perform_write+0x6a0/0x6a0
[  402.202523]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.208068]  ? check_preemption_disabled+0x48/0x280
[  402.213094]  filemap_fault+0x1595/0x25f0
[  402.217172]  ? __lock_page_or_retry+0xa00/0xa00
[  402.221845]  ? mark_held_locks+0x130/0x130
[  402.226094]  ? filemap_map_pages+0xd6b/0x1a20
[  402.230624]  ? lock_downgrade+0x900/0x900
[  402.234770]  ? check_preemption_disabled+0x48/0x280
[  402.239790]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  402.244722]  ? kasan_check_read+0x11/0x20
[  402.248864]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  402.254137]  ? rcu_softirq_qs+0x20/0x20
[  402.258128]  ? filemap_map_pages+0xd92/0x1a20
[  402.262640]  ? find_get_entries_tag+0x1400/0x1400
[  402.267486]  ? debug_object_destroy+0x2b0/0x2b0
[  402.272163]  ? lock_pi_update_atomic+0x150/0x150
[  402.276923]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.282477]  ? lock_acquire+0x1ed/0x520
[  402.286450]  ? ext4_filemap_fault+0x7a/0xad
[  402.290807]  ? lock_release+0xa00/0xa00
[  402.294792]  ? perf_trace_sched_process_exec+0x860/0x860
[  402.300290]  ? print_usage_bug+0xc0/0xc0
[  402.304356]  ? print_usage_bug+0xc0/0xc0
[  402.308434]  ? down_read+0x8d/0x120
[  402.312258]  ? ext4_filemap_fault+0x7a/0xad
[  402.316581]  ? __down_interruptible+0x700/0x700
[  402.321259]  ext4_filemap_fault+0x82/0xad
[  402.325416]  __do_fault+0x100/0x6b0
[  402.329052]  ? find_held_lock+0x36/0x1c0
[  402.333119]  ? pmd_devmap_trans_unstable+0x220/0x220
[  402.338222]  ? mark_held_locks+0x130/0x130
[  402.342458]  ? mark_held_locks+0x130/0x130
[  402.346700]  ? debug_smp_processor_id+0x1c/0x20
[  402.351368]  ? perf_trace_lock+0x14d/0x7a0
[  402.355613]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.361155]  __handle_mm_fault+0x3ea0/0x5be0
[  402.365577]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  402.370426]  ? lock_is_held_type+0x210/0x210
[  402.374853]  ? __switch_to_asm+0x34/0x70
[  402.378939]  ? __switch_to_asm+0x34/0x70
[  402.383009]  ? zap_class+0x640/0x640
[  402.386731]  ? zap_class+0x640/0x640
[  402.390441]  ? __x64_sys_futex+0x53e/0x6a0
[  402.394679]  ? find_held_lock+0x36/0x1c0
[  402.398769]  ? handle_mm_fault+0x42a/0xc70
[  402.403009]  ? lock_downgrade+0x900/0x900
[  402.407170]  ? check_preemption_disabled+0x48/0x280
[  402.412199]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  402.417130]  ? kasan_check_read+0x11/0x20
[  402.421280]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  402.426557]  ? rcu_softirq_qs+0x20/0x20
[  402.430532]  ? trace_hardirqs_off_caller+0x310/0x310
[  402.435647]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.441189]  ? check_preemption_disabled+0x48/0x280
[  402.446220]  handle_mm_fault+0x54f/0xc70
[  402.450288]  ? __handle_mm_fault+0x5be0/0x5be0
[  402.454883]  ? find_vma+0x34/0x190
[  402.458433]  __do_page_fault+0x5e8/0xe60
[  402.462499]  ? trace_hardirqs_off+0xb8/0x310
[  402.466925]  do_page_fault+0xf2/0x7e0
[  402.470737]  ? vmalloc_sync_all+0x30/0x30
[  402.474892]  ? error_entry+0x70/0xd0
[  402.478611]  ? trace_hardirqs_off_caller+0xbb/0x310
[  402.483629]  ? trace_hardirqs_on_caller+0xc0/0x310
[  402.488561]  ? syscall_return_slowpath+0x5e0/0x5e0
[  402.493492]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  402.498340]  ? trace_hardirqs_on_caller+0x310/0x310
[  402.503359]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  402.508825]  ? prepare_exit_to_usermode+0x291/0x3b0
[  402.513844]  ? page_fault+0x8/0x30
[  402.517388]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  402.522247]  ? page_fault+0x8/0x30
[  402.525790]  page_fault+0x1e/0x30
[  402.529245] RIP: 0033:0x45ddf3
[  402.532448] Code: Bad RIP value.
[  402.535812] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  402.541189] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  402.548461] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  402.555736] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  402.563060] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  402.570333] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  402.577632] warn_alloc_show_mem: 1 callbacks suppressed
[  402.577645] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  402.577647] Mem-Info:
[  402.577682] active_anon:45985 inactive_anon:296 isolated_anon:0
[  402.577682]  active_file:15 inactive_file:8 isolated_file:0
[  402.577682]  unevictable:0 dirty:0 writeback:0 unstable:0
[  402.577682]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  402.577682]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  402.577682]  free:13771 free_pcp:249 free_cma:0
[  402.583049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  402.590418] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  402.592816] Call Trace:
[  402.625603] 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
[  402.634964]  <IRQ>
[  402.662633] lowmem_reserve[]: 0 2818 6321 6321
[  402.665224]  dump_stack+0x244/0x39d
[  402.691314] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  402.693474]  ? dump_stack_print_info.cold.1+0x20/0x20
[  402.698013] lowmem_reserve[]: 0 0 3503 3503
[  402.701666]  warn_alloc.cold.116+0xb7/0x1bd
[  402.729140] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  402.734342]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  402.738639] lowmem_reserve[]: 0 0 0 0
[  402.742990]  ? lock_downgrade+0x900/0x900
[  402.771948] 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
[  402.776804]  ? trace_hardirqs_off+0xb8/0x310
[  402.780571] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  402.784721]  ? trace_hardirqs_off+0xb8/0x310
[  402.798221] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  402.802640]  __alloc_pages_slowpath+0x2651/0x2de0
[  402.817707] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  402.822138]  ? warn_alloc+0x120/0x120
[  402.837538] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  402.842387]  ? print_usage_bug+0xc0/0xc0
[  402.851207] 376 total pagecache pages
[  402.855012]  ? warn_alloc+0x120/0x120
[  402.863578] 0 pages in swap cache
[  402.867650]  ? warn_alloc+0x120/0x120
[  402.871425] Swap cache stats: add 0, delete 0, find 0/0
[  402.875221]  ? print_usage_bug+0xc0/0xc0
[  402.878645] Free swap  = 0kB
[  402.882446]  ? kvm_clock_read+0x18/0x30
[  402.887794] Total swap = 0kB
[  402.891857]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  402.894848] 1965979 pages RAM
[  402.898825]  ? print_usage_bug+0xc0/0xc0
[  402.901830] 0 pages HighMem/MovableOnly
[  402.906844]  ? __lock_acquire+0x62f/0x4c20
[  402.909925] 342854 pages reserved
[  402.913987]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.917929] 0 pages cma reserved
[  402.922163]  ? should_fail+0x22d/0xd01
[  402.925647] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  402.931116]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  402.931135]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  402.931150]  ? __lock_acquire+0x62f/0x4c20
[  402.931167]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  402.934572] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  402.938398]  ? __lock_acquire+0x62f/0x4c20
[  402.944870] syz-fuzzer cpuset=/ mems_allowed=0
[  402.950156]  ? should_fail+0x22d/0xd01
[  402.987479]  ? rcu_irq_exit+0x1a2/0x390
[  402.991474]  ? mark_held_locks+0x130/0x130
[  402.995720]  ? mark_held_locks+0x130/0x130
[  402.999966]  ? mark_held_locks+0xc7/0x130
[  403.004122]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  403.009146]  ? zap_class+0x640/0x640
[  403.012866]  ? print_usage_bug+0xc0/0xc0
[  403.016939]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.022482]  ? check_preemption_disabled+0x48/0x280
[  403.027513]  ? __lock_is_held+0xb5/0x140
[  403.031588]  __alloc_pages_nodemask+0xad8/0xea0
[  403.036261]  ? zap_class+0x640/0x640
[  403.039983]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  403.045016]  ? find_held_lock+0x36/0x1c0
[  403.049099]  ? ____cache_alloc_node+0x1c7/0x1e0
[  403.053787]  ? lock_downgrade+0x900/0x900
[  403.057960]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.063506]  cache_grow_begin+0xa5/0x8c0
[  403.067572]  ? do_raw_spin_unlock+0xa7/0x330
[  403.071996]  fallback_alloc+0x204/0x2e0
[  403.075987]  ____cache_alloc_node+0x1c7/0x1e0
[  403.080491]  kmem_cache_alloc_node+0xe3/0x730
[  403.084994]  ? ipv6_get_ifaddr+0x42e/0x620
[  403.089252]  __alloc_skb+0x119/0x770
[  403.092972]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  403.098263]  ? netdev_alloc_frag+0x1f0/0x1f0
[  403.102721]  ? lock_downgrade+0x900/0x900
[  403.106898]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.112438]  ? refcount_sub_and_test_checked+0x203/0x310
[  403.117904]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  403.123376]  ? addrconf_rs_timer+0x690/0x690
[  403.127799]  ndisc_alloc_skb+0x144/0x340
[  403.131871]  ndisc_send_rs+0x331/0x6e0
[  403.135787]  addrconf_rs_timer+0x314/0x690
[  403.140040]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.144291]  call_timer_fn+0x272/0x920
[  403.148189]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.152430]  ? process_timeout+0x40/0x40
[  403.156501]  ? __run_timers+0x7da/0xc70
[  403.160507]  ? _raw_spin_unlock_irq+0x27/0x80
[  403.165007]  ? _raw_spin_unlock_irq+0x27/0x80
[  403.169513]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.173758]  ? lockdep_hardirqs_on+0x296/0x5b0
[  403.178393]  ? trace_hardirqs_on+0xbd/0x310
[  403.182949]  ? kasan_check_read+0x11/0x20
[  403.187111]  ? __run_timers+0x7da/0xc70
[  403.191092]  ? trace_hardirqs_off_caller+0x310/0x310
[  403.196203]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.200447]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.204684]  __run_timers+0x7e5/0xc70
[  403.208515]  ? timer_fixup_init+0x70/0x70
[  403.212670]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  403.217711]  ? zap_class+0x640/0x640
[  403.221450]  ? enqueue_hrtimer+0x1a5/0x560
[  403.225722]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  403.230923]  ? find_held_lock+0x36/0x1c0
[  403.234999]  ? zap_class+0x640/0x640
[  403.238728]  ? pvclock_read_flags+0x160/0x160
[  403.243230]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.248775]  ? check_preemption_disabled+0x48/0x280
[  403.253850]  ? __lock_is_held+0xb5/0x140
[  403.257922]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.263466]  ? check_preemption_disabled+0x48/0x280
[  403.268497]  run_timer_softirq+0x52/0xb0
[  403.272566]  ? rcu_read_lock_sched_held+0x14f/0x180
[  403.277589]  __do_softirq+0x308/0xb7e
[  403.281407]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  403.285913]  ? lock_downgrade+0x900/0x900
[  403.290081]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  403.295200]  ? pvclock_read_flags+0x160/0x160
[  403.299707]  ? lapic_next_event+0x5a/0x90
[  403.303863]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.309418]  ? kvm_clock_read+0x18/0x30
[  403.313911]  ? kvm_sched_clock_read+0x9/0x20
[  403.318331]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.323881]  ? check_preemption_disabled+0x48/0x280
[  403.328922]  irq_exit+0x17f/0x1c0
[  403.332383]  smp_apic_timer_interrupt+0x1cb/0x760
[  403.337234]  ? smp_reschedule_interrupt+0x109/0x650
[  403.342261]  ? smp_call_function_single_interrupt+0x650/0x650
[  403.348152]  ? interrupt_entry+0xb5/0xc0
[  403.352223]  ? trace_hardirqs_off_caller+0xbb/0x310
[  403.357242]  ? trace_hardirqs_off_caller+0xbb/0x310
[  403.362270]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  403.367124]  ? trace_hardirqs_on_caller+0x310/0x310
[  403.372145]  ? trace_hardirqs_on_caller+0x310/0x310
[  403.377169]  ? task_prio+0x50/0x50
[  403.380721]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.386266]  ? check_preemption_disabled+0x48/0x280
[  403.391307]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  403.396258]  apic_timer_interrupt+0xf/0x20
[  403.400493]  </IRQ>
[  403.402742] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  403.407676] 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 42 f3
[  403.426591] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  403.434316] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  403.441600] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  403.448880] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  403.456167] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  403.463452] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  403.470777]  skb_clone+0x1bb/0x500
[  403.474329]  ? skb_split+0x11e0/0x11e0
[  403.478232]  ? check_preemption_disabled+0x48/0x280
[  403.483292]  ? __this_cpu_preempt_check+0x1c/0x20
[  403.488153]  ? __bpf_redirect+0x55b/0xb60
[  403.492316]  ? __switch_to_asm+0x34/0x70
[  403.496390]  ? __switch_to_asm+0x40/0x70
[  403.500466]  bpf_clone_redirect+0xb9/0x490
[  403.504720]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  403.509749]  ? __sched_text_start+0x8/0x8
[  403.513926]  ? find_held_lock+0x36/0x1c0
[  403.518005]  ? lock_acquire+0x1ed/0x520
[  403.521996]  ? bpf_test_run+0x3cb/0x780
[  403.525985]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.531531]  ? check_preemption_disabled+0x48/0x280
[  403.536563]  ? kasan_check_read+0x11/0x20
[  403.540718]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  403.546001]  ? rcu_softirq_qs+0x20/0x20
[  403.549993]  ? preempt_schedule+0x4d/0x60
[  403.554152]  ? ___preempt_schedule+0x16/0x18
[  403.558575]  ? bpf_test_run+0x25d/0x780
[  403.562568]  ? netlink_diag_dump+0x2a0/0x2a0
[  403.566993]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  403.572547]  ? bpf_test_init.isra.10+0x70/0x100
[  403.577233]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  403.582010]  ? bpf_test_finish.isra.9+0x260/0x260
[  403.586866]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  403.592415]  ? fput+0x130/0x1a0
[  403.595706]  ? __bpf_prog_get+0x9b/0x290
[  403.599777]  ? bpf_test_finish.isra.9+0x260/0x260
[  403.604634]  ? bpf_prog_test_run+0x130/0x1a0
[  403.609056]  ? __x64_sys_bpf+0x3db/0x520
[  403.613121]  ? bpf_prog_get+0x20/0x20
[  403.616961]  ? do_syscall_64+0x1b9/0x820
[  403.621025]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  403.626409]  ? syscall_return_slowpath+0x5e0/0x5e0
[  403.631343]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  403.636213]  ? trace_hardirqs_on_caller+0x310/0x310
[  403.641238]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  403.646271]  ? prepare_exit_to_usermode+0x291/0x3b0
[  403.651305]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  403.656162]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  403.661555] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  403.661639] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  403.668573] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  403.668578] Call Trace:
[  403.668585]  <IRQ>
[  403.668607]  dump_stack+0x244/0x39d
[  403.668624]  ? dump_stack_print_info.cold.1+0x20/0x20
[  403.668650]  warn_alloc.cold.116+0xb7/0x1bd
[  403.675192] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  403.684507]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  403.687100] syz-executor0 cpuset=syz0 mems_allowed=0
[  403.689247]  ? lock_downgrade+0x900/0x900
[  403.726957]  ? trace_hardirqs_off+0xb8/0x310
[  403.731385]  ? trace_hardirqs_off+0xb8/0x310
[  403.735822]  __alloc_pages_slowpath+0x2651/0x2de0
[  403.740703]  ? warn_alloc+0x120/0x120
[  403.744517]  ? print_usage_bug+0xc0/0xc0
[  403.748588]  ? warn_alloc+0x120/0x120
[  403.752402]  ? warn_alloc+0x120/0x120
[  403.756215]  ? print_usage_bug+0xc0/0xc0
[  403.760284]  ? print_usage_bug+0xc0/0xc0
[  403.764355]  ? __lock_acquire+0x62f/0x4c20
[  403.768603]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  403.774145]  ? should_fail+0x22d/0xd01
[  403.778052]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  403.783165]  ? __lock_acquire+0x62f/0x4c20
[  403.787455]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  403.792564]  ? __lock_acquire+0x62f/0x4c20
[  403.796801]  ? should_fail+0x22d/0xd01
[  403.800696]  ? find_held_lock+0x36/0x1c0
[  403.804802]  ? mark_held_locks+0x130/0x130
[  403.809110]  ? mark_held_locks+0x130/0x130
[  403.813438]  ? zap_class+0x640/0x640
[  403.817157]  ? zap_class+0x640/0x640
[  403.820898]  ? print_usage_bug+0xc0/0xc0
[  403.824957]  ? do_raw_spin_unlock+0xa7/0x330
[  403.829371]  ? zap_class+0x640/0x640
[  403.833098]  ? print_usage_bug+0xc0/0xc0
[  403.837166]  ? wq_watchdog_touch+0x9c/0xfe
[  403.841415]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.846967]  ? check_preemption_disabled+0x48/0x280
[  403.852004]  ? __lock_is_held+0xb5/0x140
[  403.856088]  __alloc_pages_nodemask+0xad8/0xea0
[  403.860767]  ? zap_class+0x640/0x640
[  403.864498]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  403.869537]  ? find_held_lock+0x36/0x1c0
[  403.873616]  ? ____cache_alloc_node+0x1c7/0x1e0
[  403.878296]  ? lock_downgrade+0x900/0x900
[  403.882471]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.888020]  cache_grow_begin+0xa5/0x8c0
[  403.892104]  ? do_raw_spin_unlock+0xa7/0x330
[  403.896554]  fallback_alloc+0x204/0x2e0
[  403.900542]  ____cache_alloc_node+0x1c7/0x1e0
[  403.905058]  kmem_cache_alloc_node+0xe3/0x730
[  403.909560]  ? ipv6_get_ifaddr+0x42e/0x620
[  403.913810]  __alloc_skb+0x119/0x770
[  403.917529]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  403.922817]  ? netdev_alloc_frag+0x1f0/0x1f0
[  403.927236]  ? lock_downgrade+0x900/0x900
[  403.931404]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.936950]  ? refcount_sub_and_test_checked+0x203/0x310
[  403.942420]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  403.947894]  ? addrconf_rs_timer+0x690/0x690
[  403.952327]  ndisc_alloc_skb+0x144/0x340
[  403.956407]  ndisc_send_rs+0x331/0x6e0
[  403.960310]  addrconf_rs_timer+0x314/0x690
[  403.964552]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.968799]  call_timer_fn+0x272/0x920
[  403.972693]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.976935]  ? process_timeout+0x40/0x40
[  403.981004]  ? mark_held_locks+0xc7/0x130
[  403.985159]  ? _raw_spin_unlock_irq+0x27/0x80
[  403.989655]  ? _raw_spin_unlock_irq+0x27/0x80
[  403.994150]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.998399]  ? lockdep_hardirqs_on+0x296/0x5b0
[  404.002984]  ? trace_hardirqs_on+0xbd/0x310
[  404.007306]  ? kasan_check_read+0x11/0x20
[  404.011458]  ? __run_timers+0x7da/0xc70
[  404.015448]  ? trace_hardirqs_off_caller+0x310/0x310
[  404.020560]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  404.024810]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  404.029053]  __run_timers+0x7e5/0xc70
[  404.032868]  ? timer_fixup_init+0x70/0x70
[  404.037022]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  404.042059]  ? zap_class+0x640/0x640
[  404.045781]  ? print_usage_bug+0xc0/0xc0
[  404.049847]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  404.055058]  ? find_held_lock+0x36/0x1c0
[  404.059134]  ? zap_class+0x640/0x640
[  404.062862]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.068409]  ? check_preemption_disabled+0x48/0x280
[  404.073448]  ? __lock_is_held+0xb5/0x140
[  404.077515]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.083079]  ? check_preemption_disabled+0x48/0x280
[  404.088105]  run_timer_softirq+0x52/0xb0
[  404.092174]  ? rcu_read_lock_sched_held+0x14f/0x180
[  404.097215]  __do_softirq+0x308/0xb7e
[  404.101026]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  404.105539]  ? lock_downgrade+0x900/0x900
[  404.109724]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  404.114899]  ? pvclock_read_flags+0x160/0x160
[  404.119415]  ? lapic_next_event+0x5a/0x90
[  404.123578]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.129136]  ? kvm_clock_read+0x18/0x30
[  404.133113]  ? kvm_sched_clock_read+0x9/0x20
[  404.137532]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  404.143103]  ? check_preemption_disabled+0x48/0x280
[  404.148158]  irq_exit+0x17f/0x1c0
[  404.151619]  smp_apic_timer_interrupt+0x1cb/0x760
[  404.156493]  ? smp_reschedule_interrupt+0x109/0x650
[  404.161520]  ? smp_call_function_single_interrupt+0x650/0x650
[  404.167415]  ? interrupt_entry+0xb5/0xc0
[  404.171488]  ? trace_hardirqs_off_caller+0xbb/0x310
[  404.176517]  ? trace_hardirqs_off_caller+0xbb/0x310
[  404.181545]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  404.186420]  ? trace_hardirqs_on_caller+0x310/0x310
[  404.191457]  ? trace_hardirqs_on_caller+0x310/0x310
[  404.196502]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  404.201373]  apic_timer_interrupt+0xf/0x20
[  404.205605]  </IRQ>
[  404.207886] RIP: 0010:dump_stack+0x358/0x39d
[  404.212313] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  404.231231] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  404.238951] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  404.246230] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  404.253510] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  404.260785] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  404.268062] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  404.275360]  ? dump_stack+0x34f/0x39d
[  404.279205]  ? dump_stack_print_info.cold.1+0x20/0x20
[  404.284410]  ? mark_held_locks+0x130/0x130
[  404.288654]  ? mark_held_locks+0x130/0x130
[  404.292897]  dump_header+0x27b/0xf72
[  404.296630]  ? pagefault_out_of_memory+0x197/0x197
[  404.301573]  ? __lock_acquire+0x62f/0x4c20
[  404.305818]  ? percpu_ref_get_many+0x240/0x240
[  404.310549]  ? print_usage_bug+0xc0/0xc0
[  404.314616]  ? zap_class+0x640/0x640
[  404.318336]  ? print_usage_bug+0xc0/0xc0
[  404.322405]  ? print_usage_bug+0xc0/0xc0
[  404.326472]  ? zap_class+0x640/0x640
[  404.330192]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.335740]  ? find_held_lock+0x36/0x1c0
[  404.339813]  ? mark_held_locks+0xc7/0x130
[  404.343982]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  404.349099]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  404.354208]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  404.358798]  ? trace_hardirqs_on+0xbd/0x310
[  404.363122]  ? kasan_check_read+0x11/0x20
[  404.367276]  ? ___ratelimit+0x3b4/0x672
[  404.371262]  ? trace_hardirqs_off_caller+0x310/0x310
[  404.376370]  ? trace_hardirqs_on+0x310/0x310
[  404.380793]  ? lock_downgrade+0x900/0x900
[  404.384952]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  404.390070]  ? ___ratelimit+0x3b9/0x672
[  404.394057]  ? idr_get_free+0xf70/0xf70
[  404.398039]  ? find_held_lock+0x36/0x1c0
[  404.402117]  oom_kill_process.cold.27+0x10/0x903
[  404.406879]  ? zap_class+0x640/0x640
[  404.410613]  ? check_preemption_disabled+0x48/0x280
[  404.415635]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  404.420565]  ? kasan_check_read+0x11/0x20
[  404.424714]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  404.429997]  ? oom_evaluate_task+0x540/0x540
[  404.434429]  ? find_held_lock+0x36/0x1c0
[  404.438505]  ? out_of_memory+0x974/0x1430
[  404.442661]  ? lock_downgrade+0x900/0x900
[  404.446814]  ? check_preemption_disabled+0x48/0x280
[  404.451834]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  404.456762]  ? kasan_check_read+0x11/0x20
[  404.460914]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  404.466195]  ? rcu_softirq_qs+0x20/0x20
[  404.470179]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  404.475719]  ? oom_evaluate_task+0x302/0x540
[  404.480152]  out_of_memory+0xa84/0x1430
[  404.484135]  ? oom_killer_disable+0x3a0/0x3a0
[  404.488649]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  404.493589]  ? __ww_mutex_check_waiters+0x160/0x160
[  404.498622]  __alloc_pages_slowpath+0x232c/0x2de0
[  404.503495]  ? warn_alloc+0x120/0x120
[  404.507314]  ? mark_held_locks+0x130/0x130
[  404.511561]  ? find_get_entry+0xaae/0x1120
[  404.515808]  ? filemap_map_pages+0x1a20/0x1a20
[  404.520404]  ? zap_class+0x640/0x640
[  404.524126]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.529675]  ? check_preemption_disabled+0x48/0x280
[  404.534694]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  404.540239]  ? should_fail+0x22d/0xd01
[  404.544134]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  404.549256]  ? zap_class+0x640/0x640
[  404.552995]  ? __lock_is_held+0xb5/0x140
[  404.557075]  ? mark_held_locks+0x130/0x130
[  404.561335]  ? lock_release+0xa00/0xa00
[  404.565332]  ? perf_trace_sched_process_exec+0x860/0x860
[  404.570786]  ? xa_load+0x2ba/0x460
[  404.574330]  ? lock_downgrade+0x900/0x900
[  404.578487]  ? __might_sleep+0x95/0x190
[  404.582471]  __alloc_pages_nodemask+0xad8/0xea0
[  404.587164]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  404.592187]  ? __page_cache_alloc+0x191/0x5c0
[  404.596688]  ? xa_load+0x2e1/0x460
[  404.600231]  ? xa_clear_mark+0x40/0x40
[  404.604124]  ? zap_class+0x640/0x640
[  404.607845]  ? zap_class+0x640/0x640
[  404.611576]  ? zap_class+0x640/0x640
[  404.615295]  ? __do_page_cache_readahead+0x663/0x810
[  404.620430]  ? find_held_lock+0x36/0x1c0
[  404.624515]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  404.630070]  alloc_pages_current+0x173/0x350
[  404.634491]  __page_cache_alloc+0x38c/0x5c0
[  404.638817]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  404.643761]  ? kasan_check_read+0x11/0x20
[  404.647914]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  404.653206]  ? generic_perform_write+0x6a0/0x6a0
[  404.657966]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  404.663505]  ? check_preemption_disabled+0x48/0x280
[  404.668537]  filemap_fault+0x1595/0x25f0
[  404.672616]  ? __lock_page_or_retry+0xa00/0xa00
[  404.677288]  ? mark_held_locks+0x130/0x130
[  404.681574]  ? filemap_map_pages+0xd6b/0x1a20
[  404.686073]  ? lock_downgrade+0x900/0x900
[  404.690225]  ? check_preemption_disabled+0x48/0x280
[  404.695281]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  404.700212]  ? kasan_check_read+0x11/0x20
[  404.704364]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  404.709646]  ? rcu_softirq_qs+0x20/0x20
[  404.713635]  ? filemap_map_pages+0xd92/0x1a20
[  404.718166]  ? find_get_entries_tag+0x1400/0x1400
[  404.723015]  ? debug_object_destroy+0x2b0/0x2b0
[  404.727728]  ? lock_pi_update_atomic+0x150/0x150
[  404.732485]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.738047]  ? lock_acquire+0x1ed/0x520
[  404.742025]  ? ext4_filemap_fault+0x7a/0xad
[  404.746383]  ? lock_release+0xa00/0xa00
[  404.750361]  ? perf_trace_sched_process_exec+0x860/0x860
[  404.755819]  ? print_usage_bug+0xc0/0xc0
[  404.759883]  ? print_usage_bug+0xc0/0xc0
[  404.763956]  ? down_read+0x8d/0x120
[  404.767581]  ? ext4_filemap_fault+0x7a/0xad
[  404.771935]  ? __down_interruptible+0x700/0x700
[  404.776616]  ext4_filemap_fault+0x82/0xad
[  404.780772]  __do_fault+0x100/0x6b0
[  404.784406]  ? find_held_lock+0x36/0x1c0
[  404.788472]  ? pmd_devmap_trans_unstable+0x220/0x220
[  404.793584]  ? mark_held_locks+0x130/0x130
[  404.797827]  ? mark_held_locks+0x130/0x130
[  404.802083]  ? debug_smp_processor_id+0x1c/0x20
[  404.806754]  ? perf_trace_lock+0x14d/0x7a0
[  404.811004]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  404.816558]  __handle_mm_fault+0x3ea0/0x5be0
[  404.821014]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  404.825883]  ? lock_is_held_type+0x210/0x210
[  404.830312]  ? __switch_to_asm+0x34/0x70
[  404.834375]  ? __switch_to_asm+0x34/0x70
[  404.838471]  ? zap_class+0x640/0x640
[  404.842186]  ? zap_class+0x640/0x640
[  404.845899]  ? __x64_sys_futex+0x53e/0x6a0
[  404.850142]  ? find_held_lock+0x36/0x1c0
[  404.854218]  ? handle_mm_fault+0x42a/0xc70
[  404.858458]  ? lock_downgrade+0x900/0x900
[  404.862609]  ? check_preemption_disabled+0x48/0x280
[  404.867634]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  404.872576]  ? kasan_check_read+0x11/0x20
[  404.876738]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  404.882019]  ? rcu_softirq_qs+0x20/0x20
[  404.886019]  ? trace_hardirqs_off_caller+0x310/0x310
[  404.891142]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  404.896685]  ? check_preemption_disabled+0x48/0x280
[  404.901713]  handle_mm_fault+0x54f/0xc70
[  404.905786]  ? __handle_mm_fault+0x5be0/0x5be0
[  404.910375]  ? find_vma+0x34/0x190
[  404.913928]  __do_page_fault+0x5e8/0xe60
[  404.917990]  ? trace_hardirqs_off+0xb8/0x310
[  404.922415]  do_page_fault+0xf2/0x7e0
[  404.926226]  ? vmalloc_sync_all+0x30/0x30
[  404.930376]  ? error_entry+0x70/0xd0
[  404.934098]  ? trace_hardirqs_off_caller+0xbb/0x310
[  404.939118]  ? trace_hardirqs_on_caller+0xc0/0x310
[  404.944055]  ? syscall_return_slowpath+0x5e0/0x5e0
[  404.948988]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  404.953843]  ? trace_hardirqs_on_caller+0x310/0x310
[  404.958874]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  404.964335]  ? prepare_exit_to_usermode+0x291/0x3b0
[  404.969355]  ? page_fault+0x8/0x30
[  404.972904]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  404.977786]  ? page_fault+0x8/0x30
[  404.981332]  page_fault+0x1e/0x30
[  404.984785] RIP: 0033:0x45ddf3
[  404.987989] Code: Bad RIP value.
[  404.991385] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  404.996752] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  405.004025] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  405.011304] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  405.018582] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  405.025854] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  405.033146] warn_alloc_show_mem: 1 callbacks suppressed
[  405.033158] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  405.033160] Mem-Info:
[  405.033197] active_anon:45985 inactive_anon:296 isolated_anon:0
[  405.033197]  active_file:15 inactive_file:8 isolated_file:0
[  405.033197]  unevictable:0 dirty:0 writeback:0 unstable:0
[  405.033197]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  405.033197]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  405.033197]  free:13771 free_pcp:249 free_cma:0
[  405.038546] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  405.045910] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  405.048314] Call Trace:
[  405.081104] 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
[  405.090459]  <IRQ>
[  405.118144] lowmem_reserve[]: 0 2818 6321 6321
[  405.120739]  dump_stack+0x244/0x39d
[  405.146832] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  405.149002]  ? dump_stack_print_info.cold.1+0x20/0x20
[  405.153537] lowmem_reserve[]: 0 0 3503 3503
[  405.157179]  warn_alloc.cold.116+0xb7/0x1bd
[  405.185103] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  405.190304]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  405.194595] lowmem_reserve[]: 0 0 0 0
[  405.198940]  ? lock_downgrade+0x900/0x900
[  405.227893] 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
[  405.232752]  ? trace_hardirqs_off+0xb8/0x310
[  405.236522] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  405.240675]  ? trace_hardirqs_off+0xb8/0x310
[  405.254176] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  405.258592]  __alloc_pages_slowpath+0x2651/0x2de0
[  405.273663] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  405.278113]  ? warn_alloc+0x120/0x120
[  405.293515] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  405.298360]  ? print_usage_bug+0xc0/0xc0
[  405.307174] 376 total pagecache pages
[  405.310976]  ? warn_alloc+0x120/0x120
[  405.319533] 0 pages in swap cache
[  405.323596]  ? warn_alloc+0x120/0x120
[  405.327367] Swap cache stats: add 0, delete 0, find 0/0
[  405.327376] Free swap  = 0kB
[  405.331181]  ? print_usage_bug+0xc0/0xc0
[  405.334598] Total swap = 0kB
[  405.334607] 1965979 pages RAM
[  405.338414]  ? print_usage_bug+0xc0/0xc0
[  405.343750] 0 pages HighMem/MovableOnly
[  405.346796]  ? __lock_acquire+0x62f/0x4c20
[  405.350829] 342854 pages reserved
[  405.353877]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  405.356953] 0 pages cma reserved
[  405.361010]  ? should_fail+0x22d/0xd01
[  405.365017] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  405.369208]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  405.369229]  ? __lock_acquire+0x62f/0x4c20
[  405.372721] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  405.378203]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  405.381542] syz-fuzzer cpuset=/ mems_allowed=0
[  405.385425]  ? __lock_acquire+0x62f/0x4c20
[  405.425338]  ? should_fail+0x22d/0xd01
[  405.429241]  ? find_held_lock+0x36/0x1c0
[  405.433325]  ? mark_held_locks+0x130/0x130
[  405.437575]  ? mark_held_locks+0x130/0x130
[  405.441814]  ? zap_class+0x640/0x640
[  405.445552]  ? zap_class+0x640/0x640
[  405.449278]  ? print_usage_bug+0xc0/0xc0
[  405.453344]  ? do_raw_spin_unlock+0xa7/0x330
[  405.457760]  ? zap_class+0x640/0x640
[  405.461481]  ? print_usage_bug+0xc0/0xc0
[  405.465547]  ? wq_watchdog_touch+0x9c/0xfe
[  405.469823]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.475367]  ? check_preemption_disabled+0x48/0x280
[  405.480397]  ? __lock_is_held+0xb5/0x140
[  405.484467]  __alloc_pages_nodemask+0xad8/0xea0
[  405.489141]  ? zap_class+0x640/0x640
[  405.492879]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  405.497931]  ? find_held_lock+0x36/0x1c0
[  405.502045]  ? ____cache_alloc_node+0x1c7/0x1e0
[  405.506735]  ? lock_downgrade+0x900/0x900
[  405.510912]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.516462]  cache_grow_begin+0xa5/0x8c0
[  405.520533]  ? do_raw_spin_unlock+0xa7/0x330
[  405.524953]  fallback_alloc+0x204/0x2e0
[  405.528938]  ____cache_alloc_node+0x1c7/0x1e0
[  405.533442]  kmem_cache_alloc_node+0xe3/0x730
[  405.537939]  ? ipv6_get_ifaddr+0x42e/0x620
[  405.542187]  __alloc_skb+0x119/0x770
[  405.545908]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  405.551194]  ? netdev_alloc_frag+0x1f0/0x1f0
[  405.555612]  ? lock_downgrade+0x900/0x900
[  405.559770]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.565312]  ? refcount_sub_and_test_checked+0x203/0x310
[  405.570771]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  405.576226]  ? addrconf_rs_timer+0x690/0x690
[  405.580656]  ndisc_alloc_skb+0x144/0x340
[  405.584733]  ndisc_send_rs+0x331/0x6e0
[  405.588634]  addrconf_rs_timer+0x314/0x690
[  405.592885]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.597140]  call_timer_fn+0x272/0x920
[  405.601038]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.605281]  ? process_timeout+0x40/0x40
[  405.609351]  ? __run_timers+0x7da/0xc70
[  405.613332]  ? _raw_spin_unlock_irq+0x27/0x80
[  405.617828]  ? _raw_spin_unlock_irq+0x27/0x80
[  405.622332]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.626577]  ? lockdep_hardirqs_on+0x296/0x5b0
[  405.631168]  ? trace_hardirqs_on+0xbd/0x310
[  405.635496]  ? kasan_check_read+0x11/0x20
[  405.639646]  ? __run_timers+0x7da/0xc70
[  405.643642]  ? trace_hardirqs_off_caller+0x310/0x310
[  405.648764]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.653040]  __run_timers+0x7e5/0xc70
[  405.656853]  ? timer_fixup_init+0x70/0x70
[  405.661009]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  405.666062]  ? zap_class+0x640/0x640
[  405.669784]  ? enqueue_hrtimer+0x1a5/0x560
[  405.674023]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  405.679237]  ? find_held_lock+0x36/0x1c0
[  405.683318]  ? zap_class+0x640/0x640
[  405.687072]  ? pvclock_read_flags+0x160/0x160
[  405.691587]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.697132]  ? check_preemption_disabled+0x48/0x280
[  405.702179]  ? __lock_is_held+0xb5/0x140
[  405.706245]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.711805]  ? check_preemption_disabled+0x48/0x280
[  405.716873]  run_timer_softirq+0x52/0xb0
[  405.720972]  ? rcu_read_lock_sched_held+0x14f/0x180
[  405.725993]  __do_softirq+0x308/0xb7e
[  405.729804]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  405.734305]  ? lock_downgrade+0x900/0x900
[  405.738463]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  405.743581]  ? pvclock_read_flags+0x160/0x160
[  405.748086]  ? lapic_next_event+0x5a/0x90
[  405.752246]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.757793]  ? kvm_clock_read+0x18/0x30
[  405.761776]  ? kvm_sched_clock_read+0x9/0x20
[  405.766205]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.771784]  ? check_preemption_disabled+0x48/0x280
[  405.776807]  irq_exit+0x17f/0x1c0
[  405.780268]  smp_apic_timer_interrupt+0x1cb/0x760
[  405.785112]  ? smp_reschedule_interrupt+0x109/0x650
[  405.790134]  ? smp_call_function_single_interrupt+0x650/0x650
[  405.796045]  ? interrupt_entry+0xb5/0xc0
[  405.800125]  ? trace_hardirqs_off_caller+0xbb/0x310
[  405.805186]  ? trace_hardirqs_off_caller+0xbb/0x310
[  405.810207]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  405.815067]  ? trace_hardirqs_on_caller+0x310/0x310
[  405.820086]  ? trace_hardirqs_on_caller+0x310/0x310
[  405.825110]  ? task_prio+0x50/0x50
[  405.828659]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.834203]  ? check_preemption_disabled+0x48/0x280
[  405.839229]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  405.844101]  apic_timer_interrupt+0xf/0x20
[  405.848334]  </IRQ>
[  405.850572] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  405.855502] 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 42 f3
[  405.874414] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  405.882130] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  405.889425] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  405.896708] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  405.903987] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  405.911267] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  405.918595]  skb_clone+0x1bb/0x500
[  405.922151]  ? skb_split+0x11e0/0x11e0
[  405.926055]  ? check_preemption_disabled+0x48/0x280
[  405.931210]  ? __this_cpu_preempt_check+0x1c/0x20
[  405.936065]  ? __bpf_redirect+0x55b/0xb60
[  405.940216]  ? __switch_to_asm+0x34/0x70
[  405.944280]  ? __switch_to_asm+0x40/0x70
[  405.948350]  bpf_clone_redirect+0xb9/0x490
[  405.952616]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  405.957646]  ? __sched_text_start+0x8/0x8
[  405.961811]  ? find_held_lock+0x36/0x1c0
[  405.965888]  ? lock_acquire+0x1ed/0x520
[  405.969873]  ? bpf_test_run+0x3cb/0x780
[  405.973861]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.979408]  ? check_preemption_disabled+0x48/0x280
[  405.984439]  ? kasan_check_read+0x11/0x20
[  405.988592]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  405.993875]  ? rcu_softirq_qs+0x20/0x20
[  405.997862]  ? preempt_schedule+0x4d/0x60
[  406.002064]  ? ___preempt_schedule+0x16/0x18
[  406.006501]  ? bpf_test_run+0x25d/0x780
[  406.010496]  ? netlink_diag_dump+0x2a0/0x2a0
[  406.014921]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  406.020487]  ? bpf_test_init.isra.10+0x70/0x100
[  406.025177]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  406.029948]  ? bpf_test_finish.isra.9+0x260/0x260
[  406.034794]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  406.040347]  ? fput+0x130/0x1a0
[  406.043636]  ? __bpf_prog_get+0x9b/0x290
[  406.047704]  ? bpf_test_finish.isra.9+0x260/0x260
[  406.052555]  ? bpf_prog_test_run+0x130/0x1a0
[  406.056971]  ? __x64_sys_bpf+0x3db/0x520
[  406.061044]  ? bpf_prog_get+0x20/0x20
[  406.064872]  ? do_syscall_64+0x1b9/0x820
[  406.068948]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  406.074319]  ? syscall_return_slowpath+0x5e0/0x5e0
[  406.079271]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  406.084121]  ? trace_hardirqs_on_caller+0x310/0x310
[  406.089147]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  406.094170]  ? prepare_exit_to_usermode+0x291/0x3b0
[  406.099199]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  406.104063]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  406.109450] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  406.109518] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  406.116464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  406.116473] Call Trace:
[  406.123085] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  406.132304]  <IRQ>
[  406.134882] syz-executor0 cpuset=syz0 mems_allowed=0
[  406.145369]  dump_stack+0x244/0x39d
[  406.156234]  ? dump_stack_print_info.cold.1+0x20/0x20
[  406.161440]  warn_alloc.cold.116+0xb7/0x1bd
[  406.165769]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  406.170621]  ? lock_downgrade+0x900/0x900
[  406.174781]  ? trace_hardirqs_off+0xb8/0x310
[  406.179208]  ? trace_hardirqs_off+0xb8/0x310
[  406.183624]  __alloc_pages_slowpath+0x2651/0x2de0
[  406.188510]  ? warn_alloc+0x120/0x120
[  406.192320]  ? print_usage_bug+0xc0/0xc0
[  406.196388]  ? warn_alloc+0x120/0x120
[  406.200202]  ? warn_alloc+0x120/0x120
[  406.204006]  ? print_usage_bug+0xc0/0xc0
[  406.208084]  ? print_usage_bug+0xc0/0xc0
[  406.212158]  ? __lock_acquire+0x62f/0x4c20
[  406.216405]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  406.221948]  ? should_fail+0x22d/0xd01
[  406.225844]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  406.230949]  ? __lock_acquire+0x62f/0x4c20
[  406.235189]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  406.240292]  ? __lock_acquire+0x62f/0x4c20
[  406.244531]  ? should_fail+0x22d/0xd01
[  406.248426]  ? find_held_lock+0x36/0x1c0
[  406.252498]  ? mark_held_locks+0x130/0x130
[  406.256740]  ? mark_held_locks+0x130/0x130
[  406.260978]  ? zap_class+0x640/0x640
[  406.264697]  ? zap_class+0x640/0x640
[  406.268419]  ? print_usage_bug+0xc0/0xc0
[  406.272500]  ? do_raw_spin_unlock+0xa7/0x330
[  406.276947]  ? zap_class+0x640/0x640
[  406.280667]  ? print_usage_bug+0xc0/0xc0
[  406.284749]  ? wq_watchdog_touch+0x9c/0xfe
[  406.288994]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.294538]  ? check_preemption_disabled+0x48/0x280
[  406.299571]  ? __lock_is_held+0xb5/0x140
[  406.303642]  __alloc_pages_nodemask+0xad8/0xea0
[  406.308316]  ? zap_class+0x640/0x640
[  406.312254]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  406.317286]  ? find_held_lock+0x36/0x1c0
[  406.321359]  ? ____cache_alloc_node+0x1c7/0x1e0
[  406.326039]  ? lock_downgrade+0x900/0x900
[  406.330231]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.335790]  cache_grow_begin+0xa5/0x8c0
[  406.339854]  ? do_raw_spin_unlock+0xa7/0x330
[  406.344298]  fallback_alloc+0x204/0x2e0
[  406.348295]  ____cache_alloc_node+0x1c7/0x1e0
[  406.352819]  kmem_cache_alloc_node+0xe3/0x730
[  406.357315]  ? ipv6_get_ifaddr+0x42e/0x620
[  406.361562]  __alloc_skb+0x119/0x770
[  406.365280]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  406.370599]  ? netdev_alloc_frag+0x1f0/0x1f0
[  406.375014]  ? lock_downgrade+0x900/0x900
[  406.379181]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.384765]  ? refcount_sub_and_test_checked+0x203/0x310
[  406.390256]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  406.395722]  ? addrconf_rs_timer+0x690/0x690
[  406.400149]  ndisc_alloc_skb+0x144/0x340
[  406.404217]  ndisc_send_rs+0x331/0x6e0
[  406.408114]  addrconf_rs_timer+0x314/0x690
[  406.412358]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  406.416608]  call_timer_fn+0x272/0x920
[  406.420502]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  406.424757]  ? process_timeout+0x40/0x40
[  406.428843]  ? mark_held_locks+0xc7/0x130
[  406.433023]  ? _raw_spin_unlock_irq+0x27/0x80
[  406.437530]  ? _raw_spin_unlock_irq+0x27/0x80
[  406.442043]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  406.446311]  ? lockdep_hardirqs_on+0x296/0x5b0
[  406.450915]  ? trace_hardirqs_on+0xbd/0x310
[  406.455238]  ? kasan_check_read+0x11/0x20
[  406.459384]  ? __run_timers+0x7da/0xc70
[  406.463366]  ? trace_hardirqs_off_caller+0x310/0x310
[  406.468481]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  406.472725]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  406.476963]  __run_timers+0x7e5/0xc70
[  406.480818]  ? timer_fixup_init+0x70/0x70
[  406.484967]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  406.489987]  ? zap_class+0x640/0x640
[  406.493711]  ? print_usage_bug+0xc0/0xc0
[  406.497777]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  406.502975]  ? find_held_lock+0x36/0x1c0
[  406.507062]  ? zap_class+0x640/0x640
[  406.510786]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.516359]  ? check_preemption_disabled+0x48/0x280
[  406.521456]  ? __lock_is_held+0xb5/0x140
[  406.525528]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.531070]  ? check_preemption_disabled+0x48/0x280
[  406.536094]  run_timer_softirq+0x52/0xb0
[  406.540177]  ? rcu_read_lock_sched_held+0x14f/0x180
[  406.545236]  __do_softirq+0x308/0xb7e
[  406.549051]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  406.553548]  ? lock_downgrade+0x900/0x900
[  406.557707]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  406.562824]  ? pvclock_read_flags+0x160/0x160
[  406.567325]  ? lapic_next_event+0x5a/0x90
[  406.571483]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.577037]  ? kvm_clock_read+0x18/0x30
[  406.581016]  ? kvm_sched_clock_read+0x9/0x20
[  406.585453]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  406.591002]  ? check_preemption_disabled+0x48/0x280
[  406.596046]  irq_exit+0x17f/0x1c0
[  406.599508]  smp_apic_timer_interrupt+0x1cb/0x760
[  406.604353]  ? smp_reschedule_interrupt+0x109/0x650
[  406.609377]  ? smp_call_function_single_interrupt+0x650/0x650
[  406.615268]  ? interrupt_entry+0xb5/0xc0
[  406.619334]  ? trace_hardirqs_off_caller+0xbb/0x310
[  406.624366]  ? trace_hardirqs_off_caller+0xbb/0x310
[  406.629407]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  406.634254]  ? trace_hardirqs_on_caller+0x310/0x310
[  406.639281]  ? trace_hardirqs_on_caller+0x310/0x310
[  406.644328]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  406.649212]  apic_timer_interrupt+0xf/0x20
[  406.653458]  </IRQ>
[  406.655703] RIP: 0010:dump_stack+0x358/0x39d
[  406.660142] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  406.679069] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  406.686785] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  406.694066] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  406.701406] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  406.708678] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  406.715953] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  406.723249]  ? dump_stack+0x34f/0x39d
[  406.727069]  ? dump_stack_print_info.cold.1+0x20/0x20
[  406.732271]  ? mark_held_locks+0x130/0x130
[  406.736511]  ? mark_held_locks+0x130/0x130
[  406.740752]  dump_header+0x27b/0xf72
[  406.744483]  ? pagefault_out_of_memory+0x197/0x197
[  406.749428]  ? __lock_acquire+0x62f/0x4c20
[  406.753670]  ? percpu_ref_get_many+0x240/0x240
[  406.758262]  ? print_usage_bug+0xc0/0xc0
[  406.762330]  ? zap_class+0x640/0x640
[  406.766057]  ? print_usage_bug+0xc0/0xc0
[  406.770128]  ? print_usage_bug+0xc0/0xc0
[  406.774199]  ? zap_class+0x640/0x640
[  406.777921]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.783465]  ? find_held_lock+0x36/0x1c0
[  406.787537]  ? mark_held_locks+0xc7/0x130
[  406.791703]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  406.796810]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  406.801922]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  406.806512]  ? trace_hardirqs_on+0xbd/0x310
[  406.810834]  ? kasan_check_read+0x11/0x20
[  406.814985]  ? ___ratelimit+0x3b4/0x672
[  406.818979]  ? trace_hardirqs_off_caller+0x310/0x310
[  406.824089]  ? trace_hardirqs_on+0x310/0x310
[  406.828501]  ? lock_downgrade+0x900/0x900
[  406.832657]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  406.837765]  ? ___ratelimit+0x3b9/0x672
[  406.841757]  ? idr_get_free+0xf70/0xf70
[  406.845733]  ? find_held_lock+0x36/0x1c0
[  406.849807]  oom_kill_process.cold.27+0x10/0x903
[  406.854566]  ? zap_class+0x640/0x640
[  406.858283]  ? check_preemption_disabled+0x48/0x280
[  406.863304]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  406.868241]  ? kasan_check_read+0x11/0x20
[  406.872398]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  406.877690]  ? oom_evaluate_task+0x540/0x540
[  406.882107]  ? find_held_lock+0x36/0x1c0
[  406.886213]  ? out_of_memory+0x974/0x1430
[  406.890365]  ? lock_downgrade+0x900/0x900
[  406.894524]  ? check_preemption_disabled+0x48/0x280
[  406.899551]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  406.904480]  ? kasan_check_read+0x11/0x20
[  406.908630]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  406.913907]  ? rcu_softirq_qs+0x20/0x20
[  406.917893]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  406.923437]  ? oom_evaluate_task+0x302/0x540
[  406.927850]  out_of_memory+0xa84/0x1430
[  406.931835]  ? oom_killer_disable+0x3a0/0x3a0
[  406.936332]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  406.941269]  ? __ww_mutex_check_waiters+0x160/0x160
[  406.946306]  __alloc_pages_slowpath+0x232c/0x2de0
[  406.951184]  ? warn_alloc+0x120/0x120
[  406.954988]  ? mark_held_locks+0x130/0x130
[  406.959236]  ? find_get_entry+0xaae/0x1120
[  406.963486]  ? filemap_map_pages+0x1a20/0x1a20
[  406.968103]  ? zap_class+0x640/0x640
[  406.971825]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.977372]  ? check_preemption_disabled+0x48/0x280
[  406.982406]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  406.987948]  ? should_fail+0x22d/0xd01
[  406.991885]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  406.997010]  ? zap_class+0x640/0x640
[  407.000762]  ? __lock_is_held+0xb5/0x140
[  407.004834]  ? mark_held_locks+0x130/0x130
[  407.009078]  ? lock_release+0xa00/0xa00
[  407.013066]  ? perf_trace_sched_process_exec+0x860/0x860
[  407.018519]  ? xa_load+0x2ba/0x460
[  407.022070]  ? lock_downgrade+0x900/0x900
[  407.026226]  ? __might_sleep+0x95/0x190
[  407.030210]  __alloc_pages_nodemask+0xad8/0xea0
[  407.034889]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  407.039908]  ? __page_cache_alloc+0x191/0x5c0
[  407.044411]  ? xa_load+0x2e1/0x460
[  407.047968]  ? xa_clear_mark+0x40/0x40
[  407.051871]  ? zap_class+0x640/0x640
[  407.055608]  ? zap_class+0x640/0x640
[  407.059321]  ? zap_class+0x640/0x640
[  407.063048]  ? __do_page_cache_readahead+0x663/0x810
[  407.068163]  ? find_held_lock+0x36/0x1c0
[  407.072250]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  407.077814]  alloc_pages_current+0x173/0x350
[  407.082231]  __page_cache_alloc+0x38c/0x5c0
[  407.086552]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  407.091497]  ? kasan_check_read+0x11/0x20
[  407.095647]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  407.100947]  ? generic_perform_write+0x6a0/0x6a0
[  407.105709]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  407.111252]  ? check_preemption_disabled+0x48/0x280
[  407.116283]  filemap_fault+0x1595/0x25f0
[  407.120362]  ? __lock_page_or_retry+0xa00/0xa00
[  407.125049]  ? mark_held_locks+0x130/0x130
[  407.129301]  ? filemap_map_pages+0xd6b/0x1a20
[  407.133804]  ? lock_downgrade+0x900/0x900
[  407.137953]  ? check_preemption_disabled+0x48/0x280
[  407.142985]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  407.147928]  ? kasan_check_read+0x11/0x20
[  407.152087]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  407.157364]  ? rcu_softirq_qs+0x20/0x20
[  407.161356]  ? filemap_map_pages+0xd92/0x1a20
[  407.165868]  ? find_get_entries_tag+0x1400/0x1400
[  407.170723]  ? debug_object_destroy+0x2b0/0x2b0
[  407.175403]  ? lock_pi_update_atomic+0x150/0x150
[  407.180689]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.186249]  ? lock_acquire+0x1ed/0x520
[  407.190228]  ? ext4_filemap_fault+0x7a/0xad
[  407.194558]  ? lock_release+0xa00/0xa00
[  407.198542]  ? perf_trace_sched_process_exec+0x860/0x860
[  407.203999]  ? print_usage_bug+0xc0/0xc0
[  407.208073]  ? print_usage_bug+0xc0/0xc0
[  407.212150]  ? down_read+0x8d/0x120
[  407.215806]  ? ext4_filemap_fault+0x7a/0xad
[  407.220132]  ? __down_interruptible+0x700/0x700
[  407.224814]  ext4_filemap_fault+0x82/0xad
[  407.228972]  __do_fault+0x100/0x6b0
[  407.232600]  ? find_held_lock+0x36/0x1c0
[  407.236669]  ? pmd_devmap_trans_unstable+0x220/0x220
[  407.241811]  ? mark_held_locks+0x130/0x130
[  407.246057]  ? mark_held_locks+0x130/0x130
[  407.250306]  ? debug_smp_processor_id+0x1c/0x20
[  407.254988]  ? perf_trace_lock+0x14d/0x7a0
[  407.259235]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  407.264785]  __handle_mm_fault+0x3ea0/0x5be0
[  407.269215]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  407.274077]  ? lock_is_held_type+0x210/0x210
[  407.278513]  ? __switch_to_asm+0x34/0x70
[  407.282587]  ? __switch_to_asm+0x34/0x70
[  407.286671]  ? zap_class+0x640/0x640
[  407.290387]  ? zap_class+0x640/0x640
[  407.294107]  ? __x64_sys_futex+0x53e/0x6a0
[  407.298356]  ? find_held_lock+0x36/0x1c0
[  407.302440]  ? handle_mm_fault+0x42a/0xc70
[  407.306692]  ? lock_downgrade+0x900/0x900
[  407.310845]  ? check_preemption_disabled+0x48/0x280
[  407.315867]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  407.320800]  ? kasan_check_read+0x11/0x20
[  407.324953]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  407.330235]  ? rcu_softirq_qs+0x20/0x20
[  407.334218]  ? trace_hardirqs_off_caller+0x310/0x310
[  407.339374]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  407.344974]  ? check_preemption_disabled+0x48/0x280
[  407.350042]  handle_mm_fault+0x54f/0xc70
[  407.354112]  ? __handle_mm_fault+0x5be0/0x5be0
[  407.358702]  ? find_vma+0x34/0x190
[  407.362257]  __do_page_fault+0x5e8/0xe60
[  407.366322]  ? trace_hardirqs_off+0xb8/0x310
[  407.370751]  do_page_fault+0xf2/0x7e0
[  407.374561]  ? vmalloc_sync_all+0x30/0x30
[  407.378753]  ? error_entry+0x70/0xd0
[  407.382486]  ? trace_hardirqs_off_caller+0xbb/0x310
[  407.387505]  ? trace_hardirqs_on_caller+0xc0/0x310
[  407.392438]  ? syscall_return_slowpath+0x5e0/0x5e0
[  407.397371]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  407.402224]  ? trace_hardirqs_on_caller+0x310/0x310
[  407.407248]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  407.412715]  ? prepare_exit_to_usermode+0x291/0x3b0
[  407.417743]  ? page_fault+0x8/0x30
[  407.421291]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  407.426152]  ? page_fault+0x8/0x30
[  407.429743]  page_fault+0x1e/0x30
[  407.433199] RIP: 0033:0x45ddf3
[  407.436405] Code: Bad RIP value.
[  407.439766] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  407.445159] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  407.452431] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  407.459706] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  407.466985] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  407.474264] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  407.481566] warn_alloc_show_mem: 1 callbacks suppressed
[  407.481579] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  407.481581] Mem-Info:
[  407.481613] active_anon:45985 inactive_anon:296 isolated_anon:0
[  407.481613]  active_file:15 inactive_file:8 isolated_file:0
[  407.481613]  unevictable:0 dirty:0 writeback:0 unstable:0
[  407.481613]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  407.481613]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  407.481613]  free:13771 free_pcp:249 free_cma:0
[  407.486954] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  407.486964] Call Trace:
[  407.494342] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  407.496743]  <IRQ>
[  407.529530] 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
[  407.538911]  dump_stack+0x244/0x39d
[  407.541465] lowmem_reserve[]: 0 2818 6321 6321
[  407.569173]  ? dump_stack_print_info.cold.1+0x20/0x20
[  407.571296] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  407.597424]  warn_alloc.cold.116+0xb7/0x1bd
[  407.601039] lowmem_reserve[]: 0 0 3503 3503
[  407.605627]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  407.610790] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  407.638320]  ? lock_downgrade+0x900/0x900
[  407.642624] lowmem_reserve[]: 0 0 0 0
[  407.646957]  ? trace_hardirqs_off+0xb8/0x310
[  407.651770] 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
[  407.680810]  ? trace_hardirqs_off+0xb8/0x310
[  407.684951] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  407.688781]  __alloc_pages_slowpath+0x2651/0x2de0
[  407.693158] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  407.706709]  ? warn_alloc+0x120/0x120
[  407.711104] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  407.726193]  ? print_usage_bug+0xc0/0xc0
[  407.731027] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  407.746471]  ? warn_alloc+0x120/0x120
[  407.750254] 376 total pagecache pages
[  407.759098]  ? warn_alloc+0x120/0x120
[  407.763144] 0 pages in swap cache
[  407.771750]  ? print_usage_bug+0xc0/0xc0
[  407.775534] Swap cache stats: add 0, delete 0, find 0/0
[  407.779343]  ? kvm_clock_read+0x18/0x30
[  407.783114] Free swap  = 0kB
[  407.786570]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  407.790594] Total swap = 0kB
[  407.790602] 1965979 pages RAM
[  407.795963]  ? print_usage_bug+0xc0/0xc0
[  407.799910] 0 pages HighMem/MovableOnly
[  407.802936]  ? __lock_acquire+0x62f/0x4c20
[  407.807972] 342854 pages reserved
[  407.810991]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  407.814064] 0 pages cma reserved
[  407.818125]  ? should_fail+0x22d/0xd01
[  407.822132] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  407.826301]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  407.826321]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  407.829918] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  407.835289]  ? __lock_acquire+0x62f/0x4c20
[  407.838629] syz-fuzzer cpuset=/ mems_allowed=0
[  407.842515]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  407.883486]  ? __lock_acquire+0x62f/0x4c20
[  407.887742]  ? should_fail+0x22d/0xd01
[  407.891630]  ? rcu_irq_exit+0x1a2/0x390
[  407.895620]  ? mark_held_locks+0x130/0x130
[  407.899862]  ? mark_held_locks+0x130/0x130
[  407.904131]  ? mark_held_locks+0xc7/0x130
[  407.908288]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  407.913313]  ? zap_class+0x640/0x640
[  407.917043]  ? print_usage_bug+0xc0/0xc0
[  407.921116]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.926666]  ? check_preemption_disabled+0x48/0x280
[  407.931702]  ? __lock_is_held+0xb5/0x140
[  407.935779]  __alloc_pages_nodemask+0xad8/0xea0
[  407.940455]  ? zap_class+0x640/0x640
[  407.944179]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  407.949250]  ? find_held_lock+0x36/0x1c0
[  407.953332]  ? ____cache_alloc_node+0x1c7/0x1e0
[  407.958010]  ? lock_downgrade+0x900/0x900
[  407.962183]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.967734]  cache_grow_begin+0xa5/0x8c0
[  407.971801]  ? do_raw_spin_unlock+0xa7/0x330
[  407.976230]  fallback_alloc+0x204/0x2e0
[  407.980221]  ____cache_alloc_node+0x1c7/0x1e0
[  407.984732]  kmem_cache_alloc_node+0xe3/0x730
[  407.989243]  ? ipv6_get_ifaddr+0x42e/0x620
[  407.993497]  __alloc_skb+0x119/0x770
[  407.997215]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  408.002521]  ? netdev_alloc_frag+0x1f0/0x1f0
[  408.006939]  ? lock_downgrade+0x900/0x900
[  408.011103]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.016651]  ? refcount_sub_and_test_checked+0x203/0x310
[  408.022121]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  408.027584]  ? addrconf_rs_timer+0x690/0x690
[  408.032018]  ndisc_alloc_skb+0x144/0x340
[  408.036102]  ndisc_send_rs+0x331/0x6e0
[  408.040005]  addrconf_rs_timer+0x314/0x690
[  408.044269]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  408.048536]  call_timer_fn+0x272/0x920
[  408.052426]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  408.056667]  ? process_timeout+0x40/0x40
[  408.060748]  ? __run_timers+0x7da/0xc70
[  408.064748]  ? _raw_spin_unlock_irq+0x27/0x80
[  408.069253]  ? _raw_spin_unlock_irq+0x27/0x80
[  408.073750]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  408.077988]  ? lockdep_hardirqs_on+0x296/0x5b0
[  408.082603]  ? trace_hardirqs_on+0xbd/0x310
[  408.086930]  ? kasan_check_read+0x11/0x20
[  408.091098]  ? __run_timers+0x7da/0xc70
[  408.095083]  ? trace_hardirqs_off_caller+0x310/0x310
[  408.100213]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  408.104459]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  408.108702]  __run_timers+0x7e5/0xc70
[  408.112520]  ? timer_fixup_init+0x70/0x70
[  408.116676]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  408.121697]  ? zap_class+0x640/0x640
[  408.125424]  ? enqueue_hrtimer+0x1a5/0x560
[  408.129671]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  408.134874]  ? find_held_lock+0x36/0x1c0
[  408.138949]  ? zap_class+0x640/0x640
[  408.142670]  ? pvclock_read_flags+0x160/0x160
[  408.147185]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.152732]  ? check_preemption_disabled+0x48/0x280
[  408.157767]  ? __lock_is_held+0xb5/0x140
[  408.161855]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.167403]  ? check_preemption_disabled+0x48/0x280
[  408.172432]  run_timer_softirq+0x52/0xb0
[  408.176505]  ? rcu_read_lock_sched_held+0x14f/0x180
[  408.181528]  __do_softirq+0x308/0xb7e
[  408.185343]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  408.189869]  ? lock_downgrade+0x900/0x900
[  408.194059]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  408.199175]  ? pvclock_read_flags+0x160/0x160
[  408.203676]  ? lapic_next_event+0x5a/0x90
[  408.208177]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.213728]  ? kvm_clock_read+0x18/0x30
[  408.217723]  ? kvm_sched_clock_read+0x9/0x20
[  408.222137]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.227680]  ? check_preemption_disabled+0x48/0x280
[  408.232728]  irq_exit+0x17f/0x1c0
[  408.236198]  smp_apic_timer_interrupt+0x1cb/0x760
[  408.241068]  ? smp_reschedule_interrupt+0x109/0x650
[  408.246089]  ? smp_call_function_single_interrupt+0x650/0x650
[  408.251995]  ? interrupt_entry+0xb5/0xc0
[  408.256070]  ? trace_hardirqs_off_caller+0xbb/0x310
[  408.261091]  ? trace_hardirqs_off_caller+0xbb/0x310
[  408.266115]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  408.270963]  ? trace_hardirqs_on_caller+0x310/0x310
[  408.275986]  ? trace_hardirqs_on_caller+0x310/0x310
[  408.281009]  ? task_prio+0x50/0x50
[  408.284566]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.290114]  ? check_preemption_disabled+0x48/0x280
[  408.295149]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  408.300011]  apic_timer_interrupt+0xf/0x20
[  408.304256]  </IRQ>
[  408.306505] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  408.311928] 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 42 f3
[  408.330831] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  408.338539] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  408.345808] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  408.353074] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  408.360340] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  408.367607] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  408.374923]  skb_clone+0x1bb/0x500
[  408.378471]  ? skb_split+0x11e0/0x11e0
[  408.382394]  ? check_preemption_disabled+0x48/0x280
[  408.387416]  ? __this_cpu_preempt_check+0x1c/0x20
[  408.392286]  ? __bpf_redirect+0x55b/0xb60
[  408.396434]  ? __switch_to_asm+0x34/0x70
[  408.400495]  ? __switch_to_asm+0x40/0x70
[  408.404563]  bpf_clone_redirect+0xb9/0x490
[  408.408809]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  408.413827]  ? __sched_text_start+0x8/0x8
[  408.417992]  ? find_held_lock+0x36/0x1c0
[  408.422072]  ? lock_acquire+0x1ed/0x520
[  408.426056]  ? bpf_test_run+0x3cb/0x780
[  408.430045]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.435587]  ? check_preemption_disabled+0x48/0x280
[  408.440614]  ? kasan_check_read+0x11/0x20
[  408.444761]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  408.450045]  ? rcu_softirq_qs+0x20/0x20
[  408.454025]  ? preempt_schedule+0x4d/0x60
[  408.458184]  ? ___preempt_schedule+0x16/0x18
[  408.462603]  ? bpf_test_run+0x25d/0x780
[  408.466589]  ? netlink_diag_dump+0x2a0/0x2a0
[  408.471003]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  408.476548]  ? bpf_test_init.isra.10+0x70/0x100
[  408.481224]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  408.485989]  ? bpf_test_finish.isra.9+0x260/0x260
[  408.490830]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  408.496369]  ? fput+0x130/0x1a0
[  408.499651]  ? __bpf_prog_get+0x9b/0x290
[  408.503719]  ? bpf_test_finish.isra.9+0x260/0x260
[  408.508560]  ? bpf_prog_test_run+0x130/0x1a0
[  408.512970]  ? __x64_sys_bpf+0x3db/0x520
[  408.517029]  ? bpf_prog_get+0x20/0x20
[  408.520861]  ? do_syscall_64+0x1b9/0x820
[  408.524936]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  408.530302]  ? syscall_return_slowpath+0x5e0/0x5e0
[  408.535229]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  408.540072]  ? trace_hardirqs_on_caller+0x310/0x310
[  408.545093]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  408.550119]  ? prepare_exit_to_usermode+0x291/0x3b0
[  408.555152]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  408.560029]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  408.565424] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  408.565497] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  408.572443] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  408.572448] Call Trace:
[  408.572455]  <IRQ>
[  408.572473]  dump_stack+0x244/0x39d
[  408.572493]  ? dump_stack_print_info.cold.1+0x20/0x20
[  408.579065] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  408.588327]  warn_alloc.cold.116+0xb7/0x1bd
[  408.590885] syz-executor0 cpuset=syz0 mems_allowed=0
[  408.593028]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  408.626531]  ? lock_downgrade+0x900/0x900
[  408.630690]  ? trace_hardirqs_off+0xb8/0x310
[  408.635110]  ? trace_hardirqs_off+0xb8/0x310
[  408.639527]  __alloc_pages_slowpath+0x2651/0x2de0
[  408.644404]  ? warn_alloc+0x120/0x120
[  408.648208]  ? print_usage_bug+0xc0/0xc0
[  408.652297]  ? warn_alloc+0x120/0x120
[  408.656192]  ? warn_alloc+0x120/0x120
[  408.659995]  ? print_usage_bug+0xc0/0xc0
[  408.664067]  ? kvm_clock_read+0x18/0x30
[  408.668050]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  408.673071]  ? print_usage_bug+0xc0/0xc0
[  408.677141]  ? __lock_acquire+0x62f/0x4c20
[  408.681384]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  408.686931]  ? should_fail+0x22d/0xd01
[  408.690816]  ? __lock_acquire+0x62f/0x4c20
[  408.695061]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  408.700166]  ? __lock_acquire+0x62f/0x4c20
[  408.704408]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  408.709566]  ? __lock_acquire+0x62f/0x4c20
[  408.713798]  ? should_fail+0x22d/0xd01
[  408.717695]  ? mark_held_locks+0x130/0x130
[  408.721940]  ? mark_held_locks+0x130/0x130
[  408.726185]  ? zap_class+0x640/0x640
[  408.729898]  ? print_usage_bug+0xc0/0xc0
[  408.733961]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.739505]  ? check_preemption_disabled+0x48/0x280
[  408.744537]  ? __lock_is_held+0xb5/0x140
[  408.748621]  __alloc_pages_nodemask+0xad8/0xea0
[  408.753289]  ? zap_class+0x640/0x640
[  408.757010]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  408.762070]  ? find_held_lock+0x36/0x1c0
[  408.766140]  ? ____cache_alloc_node+0x1c7/0x1e0
[  408.770811]  ? lock_downgrade+0x900/0x900
[  408.774968]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.780511]  cache_grow_begin+0xa5/0x8c0
[  408.784575]  ? do_raw_spin_unlock+0xa7/0x330
[  408.789007]  fallback_alloc+0x204/0x2e0
[  408.792993]  ____cache_alloc_node+0x1c7/0x1e0
[  408.797518]  kmem_cache_alloc_node+0xe3/0x730
[  408.802018]  ? ipv6_get_ifaddr+0x42e/0x620
[  408.806273]  __alloc_skb+0x119/0x770
[  408.809991]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  408.815276]  ? netdev_alloc_frag+0x1f0/0x1f0
[  408.819685]  ? lock_downgrade+0x900/0x900
[  408.823838]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.829375]  ? refcount_sub_and_test_checked+0x203/0x310
[  408.834833]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  408.840287]  ? addrconf_rs_timer+0x690/0x690
[  408.844735]  ndisc_alloc_skb+0x144/0x340
[  408.848800]  ndisc_send_rs+0x331/0x6e0
[  408.852695]  addrconf_rs_timer+0x314/0x690
[  408.856946]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  408.861206]  call_timer_fn+0x272/0x920
[  408.865108]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  408.869340]  ? process_timeout+0x40/0x40
[  408.873418]  ? mark_held_locks+0xc7/0x130
[  408.877570]  ? _raw_spin_unlock_irq+0x27/0x80
[  408.882083]  ? _raw_spin_unlock_irq+0x27/0x80
[  408.886574]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  408.890808]  ? lockdep_hardirqs_on+0x296/0x5b0
[  408.895391]  ? trace_hardirqs_on+0xbd/0x310
[  408.899723]  ? kasan_check_read+0x11/0x20
[  408.903867]  ? __run_timers+0x7da/0xc70
[  408.907842]  ? trace_hardirqs_off_caller+0x310/0x310
[  408.912974]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  408.917207]  __run_timers+0x7e5/0xc70
[  408.921015]  ? timer_fixup_init+0x70/0x70
[  408.925176]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  408.930193]  ? zap_class+0x640/0x640
[  408.933914]  ? print_usage_bug+0xc0/0xc0
[  408.937979]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  408.943191]  ? find_held_lock+0x36/0x1c0
[  408.947255]  ? zap_class+0x640/0x640
[  408.950975]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.956515]  ? check_preemption_disabled+0x48/0x280
[  408.961545]  ? __lock_is_held+0xb5/0x140
[  408.965609]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.971145]  ? check_preemption_disabled+0x48/0x280
[  408.976168]  run_timer_softirq+0x52/0xb0
[  408.980232]  ? rcu_read_lock_sched_held+0x14f/0x180
[  408.985265]  __do_softirq+0x308/0xb7e
[  408.989117]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  408.993611]  ? lock_downgrade+0x900/0x900
[  408.997761]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  409.002872]  ? pvclock_read_flags+0x160/0x160
[  409.007375]  ? lapic_next_event+0x5a/0x90
[  409.011531]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.017077]  ? kvm_clock_read+0x18/0x30
[  409.021063]  ? kvm_sched_clock_read+0x9/0x20
[  409.025472]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  409.031025]  ? check_preemption_disabled+0x48/0x280
[  409.036067]  irq_exit+0x17f/0x1c0
[  409.039527]  smp_apic_timer_interrupt+0x1cb/0x760
[  409.044411]  ? smp_reschedule_interrupt+0x109/0x650
[  409.049429]  ? smp_call_function_single_interrupt+0x650/0x650
[  409.055312]  ? interrupt_entry+0xb5/0xc0
[  409.059377]  ? trace_hardirqs_off_caller+0xbb/0x310
[  409.064400]  ? trace_hardirqs_off_caller+0xbb/0x310
[  409.069420]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  409.074267]  ? trace_hardirqs_on_caller+0x310/0x310
[  409.079281]  ? trace_hardirqs_on_caller+0x310/0x310
[  409.084309]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  409.089161]  apic_timer_interrupt+0xf/0x20
[  409.093409]  </IRQ>
[  409.095650] RIP: 0010:dump_stack+0x358/0x39d
[  409.100076] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  409.118971] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  409.126680] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  409.133947] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  409.141214] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  409.148483] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  409.155748] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  409.163046]  ? dump_stack+0x34f/0x39d
[  409.166861]  ? dump_stack_print_info.cold.1+0x20/0x20
[  409.172062]  ? mark_held_locks+0x130/0x130
[  409.176311]  ? mark_held_locks+0x130/0x130
[  409.180680]  dump_header+0x27b/0xf72
[  409.184411]  ? pagefault_out_of_memory+0x197/0x197
[  409.189356]  ? __lock_acquire+0x62f/0x4c20
[  409.193592]  ? percpu_ref_get_many+0x240/0x240
[  409.198180]  ? print_usage_bug+0xc0/0xc0
[  409.202265]  ? zap_class+0x640/0x640
[  409.205985]  ? print_usage_bug+0xc0/0xc0
[  409.210059]  ? print_usage_bug+0xc0/0xc0
[  409.214125]  ? zap_class+0x640/0x640
[  409.217847]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.223410]  ? find_held_lock+0x36/0x1c0
[  409.227482]  ? mark_held_locks+0xc7/0x130
[  409.231635]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  409.236741]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  409.241862]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  409.246452]  ? trace_hardirqs_on+0xbd/0x310
[  409.250774]  ? kasan_check_read+0x11/0x20
[  409.254960]  ? ___ratelimit+0x3b4/0x672
[  409.258941]  ? trace_hardirqs_off_caller+0x310/0x310
[  409.264056]  ? trace_hardirqs_on+0x310/0x310
[  409.268470]  ? lock_downgrade+0x900/0x900
[  409.272628]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  409.277738]  ? ___ratelimit+0x3b9/0x672
[  409.281720]  ? idr_get_free+0xf70/0xf70
[  409.285700]  ? find_held_lock+0x36/0x1c0
[  409.289774]  oom_kill_process.cold.27+0x10/0x903
[  409.294534]  ? zap_class+0x640/0x640
[  409.298253]  ? check_preemption_disabled+0x48/0x280
[  409.303276]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  409.308207]  ? kasan_check_read+0x11/0x20
[  409.312357]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  409.317642]  ? oom_evaluate_task+0x540/0x540
[  409.322065]  ? find_held_lock+0x36/0x1c0
[  409.326142]  ? out_of_memory+0x974/0x1430
[  409.330295]  ? lock_downgrade+0x900/0x900
[  409.334448]  ? check_preemption_disabled+0x48/0x280
[  409.339473]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  409.344414]  ? kasan_check_read+0x11/0x20
[  409.348568]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  409.353851]  ? rcu_softirq_qs+0x20/0x20
[  409.357835]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  409.363384]  ? oom_evaluate_task+0x302/0x540
[  409.367823]  out_of_memory+0xa84/0x1430
[  409.371811]  ? oom_killer_disable+0x3a0/0x3a0
[  409.376314]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  409.381258]  ? __ww_mutex_check_waiters+0x160/0x160
[  409.386296]  __alloc_pages_slowpath+0x232c/0x2de0
[  409.391179]  ? warn_alloc+0x120/0x120
[  409.394987]  ? mark_held_locks+0x130/0x130
[  409.399240]  ? find_get_entry+0xaae/0x1120
[  409.403490]  ? filemap_map_pages+0x1a20/0x1a20
[  409.408086]  ? zap_class+0x640/0x640
[  409.411812]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.417355]  ? check_preemption_disabled+0x48/0x280
[  409.422381]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  409.427926]  ? should_fail+0x22d/0xd01
[  409.431824]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  409.436937]  ? zap_class+0x640/0x640
[  409.440675]  ? __lock_is_held+0xb5/0x140
[  409.444750]  ? mark_held_locks+0x130/0x130
[  409.448989]  ? lock_release+0xa00/0xa00
[  409.452965]  ? perf_trace_sched_process_exec+0x860/0x860
[  409.458421]  ? xa_load+0x2ba/0x460
[  409.461965]  ? lock_downgrade+0x900/0x900
[  409.466125]  ? __might_sleep+0x95/0x190
[  409.470110]  __alloc_pages_nodemask+0xad8/0xea0
[  409.474806]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  409.479873]  ? __page_cache_alloc+0x191/0x5c0
[  409.484402]  ? xa_load+0x2e1/0x460
[  409.487957]  ? xa_clear_mark+0x40/0x40
[  409.491862]  ? zap_class+0x640/0x640
[  409.495585]  ? zap_class+0x640/0x640
[  409.499314]  ? zap_class+0x640/0x640
[  409.503069]  ? __do_page_cache_readahead+0x663/0x810
[  409.508185]  ? find_held_lock+0x36/0x1c0
[  409.512295]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  409.517845]  alloc_pages_current+0x173/0x350
[  409.522268]  __page_cache_alloc+0x38c/0x5c0
[  409.526594]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  409.531525]  ? kasan_check_read+0x11/0x20
[  409.535722]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  409.541043]  ? generic_perform_write+0x6a0/0x6a0
[  409.545811]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  409.551354]  ? check_preemption_disabled+0x48/0x280
[  409.556380]  filemap_fault+0x1595/0x25f0
[  409.560464]  ? __lock_page_or_retry+0xa00/0xa00
[  409.565138]  ? mark_held_locks+0x130/0x130
[  409.569406]  ? filemap_map_pages+0xd6b/0x1a20
[  409.573931]  ? lock_downgrade+0x900/0x900
[  409.578099]  ? check_preemption_disabled+0x48/0x280
[  409.583153]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  409.588085]  ? kasan_check_read+0x11/0x20
[  409.592238]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  409.597522]  ? rcu_softirq_qs+0x20/0x20
[  409.601513]  ? filemap_map_pages+0xd92/0x1a20
[  409.606058]  ? find_get_entries_tag+0x1400/0x1400
[  409.610926]  ? debug_object_destroy+0x2b0/0x2b0
[  409.615601]  ? lock_pi_update_atomic+0x150/0x150
[  409.620361]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.625914]  ? lock_acquire+0x1ed/0x520
[  409.629895]  ? ext4_filemap_fault+0x7a/0xad
[  409.634229]  ? lock_release+0xa00/0xa00
[  409.638218]  ? perf_trace_sched_process_exec+0x860/0x860
[  409.643676]  ? print_usage_bug+0xc0/0xc0
[  409.647740]  ? print_usage_bug+0xc0/0xc0
[  409.651842]  ? down_read+0x8d/0x120
[  409.655469]  ? ext4_filemap_fault+0x7a/0xad
[  409.659794]  ? __down_interruptible+0x700/0x700
[  409.664474]  ext4_filemap_fault+0x82/0xad
[  409.668661]  __do_fault+0x100/0x6b0
[  409.672292]  ? find_held_lock+0x36/0x1c0
[  409.676364]  ? pmd_devmap_trans_unstable+0x220/0x220
[  409.681478]  ? mark_held_locks+0x130/0x130
[  409.685718]  ? mark_held_locks+0x130/0x130
[  409.689969]  ? debug_smp_processor_id+0x1c/0x20
[  409.694696]  ? perf_trace_lock+0x14d/0x7a0
[  409.698941]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  409.704495]  __handle_mm_fault+0x3ea0/0x5be0
[  409.708921]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  409.713786]  ? lock_is_held_type+0x210/0x210
[  409.718204]  ? __switch_to_asm+0x34/0x70
[  409.722265]  ? __switch_to_asm+0x34/0x70
[  409.726362]  ? zap_class+0x640/0x640
[  409.730079]  ? zap_class+0x640/0x640
[  409.733795]  ? __x64_sys_futex+0x53e/0x6a0
[  409.738043]  ? find_held_lock+0x36/0x1c0
[  409.742117]  ? handle_mm_fault+0x42a/0xc70
[  409.746357]  ? lock_downgrade+0x900/0x900
[  409.750510]  ? check_preemption_disabled+0x48/0x280
[  409.755535]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  409.760466]  ? kasan_check_read+0x11/0x20
[  409.764614]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  409.769894]  ? rcu_softirq_qs+0x20/0x20
[  409.773881]  ? trace_hardirqs_off_caller+0x310/0x310
[  409.778991]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  409.784531]  ? check_preemption_disabled+0x48/0x280
[  409.789563]  handle_mm_fault+0x54f/0xc70
[  409.793631]  ? __handle_mm_fault+0x5be0/0x5be0
[  409.798224]  ? find_vma+0x34/0x190
[  409.801772]  __do_page_fault+0x5e8/0xe60
[  409.805832]  ? trace_hardirqs_off+0xb8/0x310
[  409.810283]  do_page_fault+0xf2/0x7e0
[  409.814085]  ? vmalloc_sync_all+0x30/0x30
[  409.818245]  ? error_entry+0x70/0xd0
[  409.821966]  ? trace_hardirqs_off_caller+0xbb/0x310
[  409.826983]  ? trace_hardirqs_on_caller+0xc0/0x310
[  409.831929]  ? syscall_return_slowpath+0x5e0/0x5e0
[  409.836858]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  409.841721]  ? trace_hardirqs_on_caller+0x310/0x310
[  409.846735]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  409.852194]  ? prepare_exit_to_usermode+0x291/0x3b0
[  409.857212]  ? page_fault+0x8/0x30
[  409.860756]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  409.865604]  ? page_fault+0x8/0x30
[  409.869146]  page_fault+0x1e/0x30
[  409.872595] RIP: 0033:0x45ddf3
[  409.875797] Code: Bad RIP value.
[  409.879162] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  409.884535] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  409.891805] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  409.899109] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  409.906382] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  409.913657] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  409.920976] warn_alloc_show_mem: 1 callbacks suppressed
[  409.921003] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  409.921005] Mem-Info:
[  409.921046] active_anon:45985 inactive_anon:296 isolated_anon:0
[  409.921046]  active_file:15 inactive_file:8 isolated_file:0
[  409.921046]  unevictable:0 dirty:0 writeback:0 unstable:0
[  409.921046]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  409.921046]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  409.921046]  free:13771 free_pcp:249 free_cma:0
[  409.926383] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  409.926392] Call Trace:
[  409.933772] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  409.936179]  <IRQ>
[  409.968982] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  409.978353]  dump_stack+0x244/0x39d
[  409.980907] lowmem_reserve[]: 0 2818 6321 6321
[  410.008608]  ? dump_stack_print_info.cold.1+0x20/0x20
[  410.010733] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  410.036855]  warn_alloc.cold.116+0xb7/0x1bd
[  410.040452] lowmem_reserve[]: 0 0 3503 3503
[  410.045068]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  410.050230] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  410.077740]  ? lock_downgrade+0x900/0x900
[  410.082044] lowmem_reserve[]: 0 0 0 0
[  410.086373]  ? trace_hardirqs_off+0xb8/0x310
[  410.091186] 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
[  410.120174]  ? trace_hardirqs_off+0xb8/0x310
[  410.124299] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  410.128103]  __alloc_pages_slowpath+0x2651/0x2de0
[  410.132492] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  410.146069]  ? warn_alloc+0x120/0x120
[  410.150432] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  410.165537]  ? print_usage_bug+0xc0/0xc0
[  410.170367] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  410.185820]  ? warn_alloc+0x120/0x120
[  410.189600] 376 total pagecache pages
[  410.198437]  ? warn_alloc+0x120/0x120
[  410.202485] 0 pages in swap cache
[  410.211065]  ? print_usage_bug+0xc0/0xc0
[  410.214844] Swap cache stats: add 0, delete 0, find 0/0
[  410.218658]  ? kvm_clock_read+0x18/0x30
[  410.222431] Free swap  = 0kB
[  410.225891]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  410.229914] Total swap = 0kB
[  410.229922] 1965979 pages RAM
[  410.235288]  ? print_usage_bug+0xc0/0xc0
[  410.239234] 0 pages HighMem/MovableOnly
[  410.242251]  ? __lock_acquire+0x62f/0x4c20
[  410.247240] 342854 pages reserved
[  410.250259]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  410.253334] 0 pages cma reserved
[  410.257391]  ? should_fail+0x22d/0xd01
[  410.261405] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  410.265569]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  410.265608]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  410.269144] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  410.274596]  ? __lock_acquire+0x62f/0x4c20
[  410.277953] syz-fuzzer cpuset=/ mems_allowed=0
[  410.281836]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  410.323257]  ? __lock_acquire+0x62f/0x4c20
[  410.327492]  ? should_fail+0x22d/0xd01
[  410.331378]  ? rcu_irq_exit+0x1a2/0x390
[  410.335394]  ? mark_held_locks+0x130/0x130
[  410.339665]  ? mark_held_locks+0x130/0x130
[  410.343910]  ? mark_held_locks+0xc7/0x130
[  410.348065]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  410.353085]  ? zap_class+0x640/0x640
[  410.356797]  ? print_usage_bug+0xc0/0xc0
[  410.360873]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.366416]  ? check_preemption_disabled+0x48/0x280
[  410.371458]  ? __lock_is_held+0xb5/0x140
[  410.376392]  __alloc_pages_nodemask+0xad8/0xea0
[  410.381069]  ? zap_class+0x640/0x640
[  410.384789]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  410.389830]  ? find_held_lock+0x36/0x1c0
[  410.393923]  ? ____cache_alloc_node+0x1c7/0x1e0
[  410.398593]  ? lock_downgrade+0x900/0x900
[  410.402751]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.408295]  cache_grow_begin+0xa5/0x8c0
[  410.412356]  ? do_raw_spin_unlock+0xa7/0x330
[  410.416772]  fallback_alloc+0x204/0x2e0
[  410.420756]  ____cache_alloc_node+0x1c7/0x1e0
[  410.425256]  kmem_cache_alloc_node+0xe3/0x730
[  410.429774]  ? ipv6_get_ifaddr+0x42e/0x620
[  410.434057]  __alloc_skb+0x119/0x770
[  410.437774]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  410.443065]  ? netdev_alloc_frag+0x1f0/0x1f0
[  410.447474]  ? lock_downgrade+0x900/0x900
[  410.451628]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.457190]  ? refcount_sub_and_test_checked+0x203/0x310
[  410.462644]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  410.468098]  ? addrconf_rs_timer+0x690/0x690
[  410.472520]  ndisc_alloc_skb+0x144/0x340
[  410.476585]  ndisc_send_rs+0x331/0x6e0
[  410.480482]  addrconf_rs_timer+0x314/0x690
[  410.484727]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  410.488979]  call_timer_fn+0x272/0x920
[  410.492879]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  410.497122]  ? process_timeout+0x40/0x40
[  410.501189]  ? __run_timers+0x7da/0xc70
[  410.505180]  ? _raw_spin_unlock_irq+0x27/0x80
[  410.509731]  ? _raw_spin_unlock_irq+0x27/0x80
[  410.514276]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  410.518545]  ? lockdep_hardirqs_on+0x296/0x5b0
[  410.523131]  ? trace_hardirqs_on+0xbd/0x310
[  410.527470]  ? kasan_check_read+0x11/0x20
[  410.531615]  ? __run_timers+0x7da/0xc70
[  410.535608]  ? trace_hardirqs_off_caller+0x310/0x310
[  410.540716]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  410.544960]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  410.549191]  __run_timers+0x7e5/0xc70
[  410.553002]  ? timer_fixup_init+0x70/0x70
[  410.557161]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  410.562177]  ? zap_class+0x640/0x640
[  410.565896]  ? enqueue_hrtimer+0x1a5/0x560
[  410.570137]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  410.575349]  ? find_held_lock+0x36/0x1c0
[  410.579414]  ? zap_class+0x640/0x640
[  410.583133]  ? pvclock_read_flags+0x160/0x160
[  410.587630]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.593172]  ? check_preemption_disabled+0x48/0x280
[  410.598197]  ? __lock_is_held+0xb5/0x140
[  410.602271]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.607812]  ? check_preemption_disabled+0x48/0x280
[  410.612830]  run_timer_softirq+0x52/0xb0
[  410.616891]  ? rcu_read_lock_sched_held+0x14f/0x180
[  410.621922]  __do_softirq+0x308/0xb7e
[  410.625725]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  410.630219]  ? lock_downgrade+0x900/0x900
[  410.634380]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  410.639493]  ? pvclock_read_flags+0x160/0x160
[  410.644004]  ? lapic_next_event+0x5a/0x90
[  410.648162]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.653704]  ? kvm_clock_read+0x18/0x30
[  410.657681]  ? kvm_sched_clock_read+0x9/0x20
[  410.662093]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.667630]  ? check_preemption_disabled+0x48/0x280
[  410.672658]  irq_exit+0x17f/0x1c0
[  410.676114]  smp_apic_timer_interrupt+0x1cb/0x760
[  410.680956]  ? smp_reschedule_interrupt+0x109/0x650
[  410.685973]  ? smp_call_function_single_interrupt+0x650/0x650
[  410.691857]  ? interrupt_entry+0xb5/0xc0
[  410.695926]  ? trace_hardirqs_off_caller+0xbb/0x310
[  410.700944]  ? trace_hardirqs_off_caller+0xbb/0x310
[  410.705963]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  410.710810]  ? trace_hardirqs_on_caller+0x310/0x310
[  410.715826]  ? trace_hardirqs_on_caller+0x310/0x310
[  410.720843]  ? task_prio+0x50/0x50
[  410.724390]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.729930]  ? check_preemption_disabled+0x48/0x280
[  410.734949]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  410.739803]  apic_timer_interrupt+0xf/0x20
[  410.744030]  </IRQ>
[  410.746282] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  410.751216] 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 42 f3
[  410.770117] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  410.777825] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  410.785092] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  410.792389] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  410.799656] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  410.806923] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  410.814230]  skb_clone+0x1bb/0x500
[  410.817775]  ? skb_split+0x11e0/0x11e0
[  410.821667]  ? check_preemption_disabled+0x48/0x280
[  410.826689]  ? __this_cpu_preempt_check+0x1c/0x20
[  410.831532]  ? __bpf_redirect+0x55b/0xb60
[  410.835687]  ? __switch_to_asm+0x34/0x70
[  410.839757]  ? __switch_to_asm+0x40/0x70
[  410.843819]  bpf_clone_redirect+0xb9/0x490
[  410.848067]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  410.853104]  ? __sched_text_start+0x8/0x8
[  410.857268]  ? find_held_lock+0x36/0x1c0
[  410.861363]  ? lock_acquire+0x1ed/0x520
[  410.865339]  ? bpf_test_run+0x3cb/0x780
[  410.869319]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.874856]  ? check_preemption_disabled+0x48/0x280
[  410.879880]  ? kasan_check_read+0x11/0x20
[  410.884029]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  410.889319]  ? rcu_softirq_qs+0x20/0x20
[  410.893294]  ? preempt_schedule+0x4d/0x60
[  410.897442]  ? ___preempt_schedule+0x16/0x18
[  410.901857]  ? bpf_test_run+0x25d/0x780
[  410.905843]  ? netlink_diag_dump+0x2a0/0x2a0
[  410.910260]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  410.915843]  ? bpf_test_init.isra.10+0x70/0x100
[  410.921819]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  410.926587]  ? bpf_test_finish.isra.9+0x260/0x260
[  410.931432]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  410.936970]  ? fput+0x130/0x1a0
[  410.940255]  ? __bpf_prog_get+0x9b/0x290
[  410.944320]  ? bpf_test_finish.isra.9+0x260/0x260
[  410.949188]  ? bpf_prog_test_run+0x130/0x1a0
[  410.953630]  ? __x64_sys_bpf+0x3db/0x520
[  410.957690]  ? bpf_prog_get+0x20/0x20
[  410.961513]  ? do_syscall_64+0x1b9/0x820
[  410.965573]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  410.970966]  ? syscall_return_slowpath+0x5e0/0x5e0
[  410.975894]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  410.980746]  ? trace_hardirqs_on_caller+0x310/0x310
[  410.985777]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  410.990809]  ? prepare_exit_to_usermode+0x291/0x3b0
[  410.995831]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  411.000683]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  411.006079] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  411.006146] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  411.013092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  411.013097] Call Trace:
[  411.013104]  <IRQ>
[  411.013122]  dump_stack+0x244/0x39d
[  411.013141]  ? dump_stack_print_info.cold.1+0x20/0x20
[  411.019702] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  411.028973]  warn_alloc.cold.116+0xb7/0x1bd
[  411.031529] syz-executor0 cpuset=syz0 mems_allowed=0
[  411.033671]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  411.067158]  ? lock_downgrade+0x900/0x900
[  411.071321]  ? trace_hardirqs_off+0xb8/0x310
[  411.075736]  ? trace_hardirqs_off+0xb8/0x310
[  411.080151]  __alloc_pages_slowpath+0x2651/0x2de0
[  411.085027]  ? warn_alloc+0x120/0x120
[  411.088842]  ? print_usage_bug+0xc0/0xc0
[  411.092903]  ? warn_alloc+0x120/0x120
[  411.096711]  ? warn_alloc+0x120/0x120
[  411.100512]  ? print_usage_bug+0xc0/0xc0
[  411.104748]  ? kvm_clock_read+0x18/0x30
[  411.108725]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  411.113741]  ? print_usage_bug+0xc0/0xc0
[  411.117820]  ? __lock_acquire+0x62f/0x4c20
[  411.122077]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  411.127618]  ? should_fail+0x22d/0xd01
[  411.131504]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  411.136786]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  411.141888]  ? __lock_acquire+0x62f/0x4c20
[  411.146126]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  411.151230]  ? __lock_acquire+0x62f/0x4c20
[  411.155465]  ? should_fail+0x22d/0xd01
[  411.159348]  ? rcu_irq_exit+0x1a2/0x390
[  411.163329]  ? mark_held_locks+0x130/0x130
[  411.167566]  ? mark_held_locks+0x130/0x130
[  411.171808]  ? mark_held_locks+0xc7/0x130
[  411.175954]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  411.181099]  ? zap_class+0x640/0x640
[  411.184813]  ? print_usage_bug+0xc0/0xc0
[  411.188875]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.194420]  ? check_preemption_disabled+0x48/0x280
[  411.199450]  ? __lock_is_held+0xb5/0x140
[  411.203952]  __alloc_pages_nodemask+0xad8/0xea0
[  411.208622]  ? zap_class+0x640/0x640
[  411.212343]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  411.217384]  ? find_held_lock+0x36/0x1c0
[  411.221458]  ? ____cache_alloc_node+0x1c7/0x1e0
[  411.226135]  ? lock_downgrade+0x900/0x900
[  411.230293]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.235839]  cache_grow_begin+0xa5/0x8c0
[  411.239901]  ? do_raw_spin_unlock+0xa7/0x330
[  411.244318]  fallback_alloc+0x204/0x2e0
[  411.248297]  ____cache_alloc_node+0x1c7/0x1e0
[  411.252798]  kmem_cache_alloc_node+0xe3/0x730
[  411.257295]  ? ipv6_get_ifaddr+0x42e/0x620
[  411.261540]  __alloc_skb+0x119/0x770
[  411.265254]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  411.270536]  ? netdev_alloc_frag+0x1f0/0x1f0
[  411.274948]  ? lock_downgrade+0x900/0x900
[  411.279107]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.284643]  ? refcount_sub_and_test_checked+0x203/0x310
[  411.290097]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  411.295604]  ? addrconf_rs_timer+0x690/0x690
[  411.300023]  ndisc_alloc_skb+0x144/0x340
[  411.304126]  ndisc_send_rs+0x331/0x6e0
[  411.308019]  addrconf_rs_timer+0x314/0x690
[  411.312267]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  411.316510]  call_timer_fn+0x272/0x920
[  411.320408]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  411.324643]  ? process_timeout+0x40/0x40
[  411.328712]  ? mark_held_locks+0xc7/0x130
[  411.332980]  ? _raw_spin_unlock_irq+0x27/0x80
[  411.337477]  ? _raw_spin_unlock_irq+0x27/0x80
[  411.341987]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  411.346232]  ? lockdep_hardirqs_on+0x296/0x5b0
[  411.350816]  ? trace_hardirqs_on+0xbd/0x310
[  411.355136]  ? kasan_check_read+0x11/0x20
[  411.359286]  ? __run_timers+0x7da/0xc70
[  411.363277]  ? trace_hardirqs_off_caller+0x310/0x310
[  411.368383]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  411.372631]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  411.376866]  __run_timers+0x7e5/0xc70
[  411.380693]  ? timer_fixup_init+0x70/0x70
[  411.384874]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  411.389894]  ? zap_class+0x640/0x640
[  411.393618]  ? print_usage_bug+0xc0/0xc0
[  411.397682]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  411.402881]  ? find_held_lock+0x36/0x1c0
[  411.406951]  ? zap_class+0x640/0x640
[  411.410673]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.416229]  ? check_preemption_disabled+0x48/0x280
[  411.421258]  ? __lock_is_held+0xb5/0x140
[  411.425353]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.430898]  ? check_preemption_disabled+0x48/0x280
[  411.435919]  run_timer_softirq+0x52/0xb0
[  411.439993]  ? rcu_read_lock_sched_held+0x14f/0x180
[  411.445012]  __do_softirq+0x308/0xb7e
[  411.448825]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  411.453337]  ? lock_downgrade+0x900/0x900
[  411.457491]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  411.462614]  ? pvclock_read_flags+0x160/0x160
[  411.467115]  ? lapic_next_event+0x5a/0x90
[  411.471264]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.476846]  ? kvm_clock_read+0x18/0x30
[  411.480818]  ? kvm_sched_clock_read+0x9/0x20
[  411.485234]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  411.490788]  ? check_preemption_disabled+0x48/0x280
[  411.495835]  irq_exit+0x17f/0x1c0
[  411.499286]  smp_apic_timer_interrupt+0x1cb/0x760
[  411.504130]  ? smp_reschedule_interrupt+0x109/0x650
[  411.509153]  ? smp_call_function_single_interrupt+0x650/0x650
[  411.515046]  ? interrupt_entry+0xb5/0xc0
[  411.519116]  ? trace_hardirqs_off_caller+0xbb/0x310
[  411.524131]  ? trace_hardirqs_off_caller+0xbb/0x310
[  411.529149]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  411.534019]  ? trace_hardirqs_on_caller+0x310/0x310
[  411.539064]  ? trace_hardirqs_on_caller+0x310/0x310
[  411.544099]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  411.548966]  apic_timer_interrupt+0xf/0x20
[  411.553193]  </IRQ>
[  411.555440] RIP: 0010:dump_stack+0x358/0x39d
[  411.559860] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  411.578759] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  411.586471] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  411.593737] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  411.601004] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  411.608275] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  411.615540] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  411.622826]  ? dump_stack+0x34f/0x39d
[  411.626639]  ? dump_stack_print_info.cold.1+0x20/0x20
[  411.631861]  ? mark_held_locks+0x130/0x130
[  411.636094]  ? mark_held_locks+0x130/0x130
[  411.640333]  dump_header+0x27b/0xf72
[  411.644069]  ? pagefault_out_of_memory+0x197/0x197
[  411.649011]  ? __lock_acquire+0x62f/0x4c20
[  411.653255]  ? percpu_ref_get_many+0x240/0x240
[  411.657841]  ? print_usage_bug+0xc0/0xc0
[  411.661924]  ? zap_class+0x640/0x640
[  411.665643]  ? print_usage_bug+0xc0/0xc0
[  411.669705]  ? print_usage_bug+0xc0/0xc0
[  411.673766]  ? zap_class+0x640/0x640
[  411.677488]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.683067]  ? find_held_lock+0x36/0x1c0
[  411.687144]  ? mark_held_locks+0xc7/0x130
[  411.691306]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  411.696431]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  411.701538]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  411.706124]  ? trace_hardirqs_on+0xbd/0x310
[  411.710445]  ? kasan_check_read+0x11/0x20
[  411.714596]  ? ___ratelimit+0x3b4/0x672
[  411.718575]  ? trace_hardirqs_off_caller+0x310/0x310
[  411.723678]  ? trace_hardirqs_on+0x310/0x310
[  411.728100]  ? lock_downgrade+0x900/0x900
[  411.732286]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  411.737389]  ? ___ratelimit+0x3b9/0x672
[  411.741369]  ? idr_get_free+0xf70/0xf70
[  411.745347]  ? find_held_lock+0x36/0x1c0
[  411.749422]  oom_kill_process.cold.27+0x10/0x903
[  411.754178]  ? zap_class+0x640/0x640
[  411.757893]  ? check_preemption_disabled+0x48/0x280
[  411.762933]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  411.767862]  ? kasan_check_read+0x11/0x20
[  411.772008]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  411.777300]  ? oom_evaluate_task+0x540/0x540
[  411.781716]  ? find_held_lock+0x36/0x1c0
[  411.785789]  ? out_of_memory+0x974/0x1430
[  411.789943]  ? lock_downgrade+0x900/0x900
[  411.794111]  ? check_preemption_disabled+0x48/0x280
[  411.799149]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  411.804458]  ? kasan_check_read+0x11/0x20
[  411.808609]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  411.813913]  ? rcu_softirq_qs+0x20/0x20
[  411.817932]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  411.823465]  ? oom_evaluate_task+0x302/0x540
[  411.827878]  out_of_memory+0xa84/0x1430
[  411.831864]  ? oom_killer_disable+0x3a0/0x3a0
[  411.836359]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  411.841295]  ? __ww_mutex_check_waiters+0x160/0x160
[  411.846325]  __alloc_pages_slowpath+0x232c/0x2de0
[  411.851198]  ? warn_alloc+0x120/0x120
[  411.855001]  ? mark_held_locks+0x130/0x130
[  411.859241]  ? find_get_entry+0xaae/0x1120
[  411.863489]  ? filemap_map_pages+0x1a20/0x1a20
[  411.868075]  ? zap_class+0x640/0x640
[  411.871794]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.877331]  ? check_preemption_disabled+0x48/0x280
[  411.882365]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  411.887937]  ? should_fail+0x22d/0xd01
[  411.891830]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  411.896932]  ? zap_class+0x640/0x640
[  411.900670]  ? __lock_is_held+0xb5/0x140
[  411.904742]  ? mark_held_locks+0x130/0x130
[  411.908994]  ? lock_release+0xa00/0xa00
[  411.912973]  ? perf_trace_sched_process_exec+0x860/0x860
[  411.918440]  ? xa_load+0x2ba/0x460
[  411.921990]  ? lock_downgrade+0x900/0x900
[  411.926140]  ? __might_sleep+0x95/0x190
[  411.930133]  __alloc_pages_nodemask+0xad8/0xea0
[  411.934814]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  411.939844]  ? __page_cache_alloc+0x191/0x5c0
[  411.944338]  ? xa_load+0x2e1/0x460
[  411.947879]  ? xa_clear_mark+0x40/0x40
[  411.951766]  ? zap_class+0x640/0x640
[  411.955491]  ? zap_class+0x640/0x640
[  411.959203]  ? zap_class+0x640/0x640
[  411.962916]  ? __do_page_cache_readahead+0x663/0x810
[  411.968050]  ? find_held_lock+0x36/0x1c0
[  411.972124]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  411.977668]  alloc_pages_current+0x173/0x350
[  411.982096]  __page_cache_alloc+0x38c/0x5c0
[  411.986437]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  411.991368]  ? kasan_check_read+0x11/0x20
[  411.995521]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  412.000799]  ? generic_perform_write+0x6a0/0x6a0
[  412.005556]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  412.011116]  ? check_preemption_disabled+0x48/0x280
[  412.016170]  filemap_fault+0x1595/0x25f0
[  412.020258]  ? __lock_page_or_retry+0xa00/0xa00
[  412.024929]  ? mark_held_locks+0x130/0x130
[  412.029175]  ? filemap_map_pages+0xd6b/0x1a20
[  412.033671]  ? lock_downgrade+0x900/0x900
[  412.037819]  ? check_preemption_disabled+0x48/0x280
[  412.042835]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  412.047759]  ? kasan_check_read+0x11/0x20
[  412.051918]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  412.057196]  ? rcu_softirq_qs+0x20/0x20
[  412.061182]  ? filemap_map_pages+0xd92/0x1a20
[  412.065694]  ? find_get_entries_tag+0x1400/0x1400
[  412.070541]  ? debug_object_destroy+0x2b0/0x2b0
[  412.075213]  ? lock_pi_update_atomic+0x150/0x150
[  412.079970]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.085519]  ? lock_acquire+0x1ed/0x520
[  412.089504]  ? ext4_filemap_fault+0x7a/0xad
[  412.093830]  ? lock_release+0xa00/0xa00
[  412.097805]  ? perf_trace_sched_process_exec+0x860/0x860
[  412.103254]  ? print_usage_bug+0xc0/0xc0
[  412.107322]  ? print_usage_bug+0xc0/0xc0
[  412.111389]  ? down_read+0x8d/0x120
[  412.115043]  ? ext4_filemap_fault+0x7a/0xad
[  412.119365]  ? __down_interruptible+0x700/0x700
[  412.124047]  ext4_filemap_fault+0x82/0xad
[  412.128197]  __do_fault+0x100/0x6b0
[  412.131823]  ? find_held_lock+0x36/0x1c0
[  412.135889]  ? pmd_devmap_trans_unstable+0x220/0x220
[  412.140991]  ? mark_held_locks+0x130/0x130
[  412.145226]  ? mark_held_locks+0x130/0x130
[  412.149464]  ? debug_smp_processor_id+0x1c/0x20
[  412.154146]  ? perf_trace_lock+0x14d/0x7a0
[  412.158409]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  412.163954]  __handle_mm_fault+0x3ea0/0x5be0
[  412.168374]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  412.173221]  ? lock_is_held_type+0x210/0x210
[  412.177638]  ? __switch_to_asm+0x34/0x70
[  412.181700]  ? __switch_to_asm+0x34/0x70
[  412.185771]  ? zap_class+0x640/0x640
[  412.189485]  ? zap_class+0x640/0x640
[  412.193194]  ? __x64_sys_futex+0x53e/0x6a0
[  412.197436]  ? find_held_lock+0x36/0x1c0
[  412.201503]  ? handle_mm_fault+0x42a/0xc70
[  412.205739]  ? lock_downgrade+0x900/0x900
[  412.209882]  ? check_preemption_disabled+0x48/0x280
[  412.214902]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  412.219829]  ? kasan_check_read+0x11/0x20
[  412.223988]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  412.229300]  ? rcu_softirq_qs+0x20/0x20
[  412.233272]  ? trace_hardirqs_off_caller+0x310/0x310
[  412.238391]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  412.243946]  ? check_preemption_disabled+0x48/0x280
[  412.248975]  handle_mm_fault+0x54f/0xc70
[  412.253064]  ? __handle_mm_fault+0x5be0/0x5be0
[  412.257652]  ? find_vma+0x34/0x190
[  412.261207]  __do_page_fault+0x5e8/0xe60
[  412.265268]  ? trace_hardirqs_off+0xb8/0x310
[  412.269686]  do_page_fault+0xf2/0x7e0
[  412.273505]  ? vmalloc_sync_all+0x30/0x30
[  412.277658]  ? error_entry+0x70/0xd0
[  412.281375]  ? trace_hardirqs_off_caller+0xbb/0x310
[  412.286460]  ? trace_hardirqs_on_caller+0xc0/0x310
[  412.291393]  ? syscall_return_slowpath+0x5e0/0x5e0
[  412.296343]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  412.301219]  ? trace_hardirqs_on_caller+0x310/0x310
[  412.306235]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  412.311792]  ? prepare_exit_to_usermode+0x291/0x3b0
[  412.316808]  ? page_fault+0x8/0x30
[  412.320354]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  412.325198]  ? page_fault+0x8/0x30
[  412.328741]  page_fault+0x1e/0x30
[  412.332205] RIP: 0033:0x45ddf3
[  412.335417] Code: Bad RIP value.
[  412.338781] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  412.344177] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  412.351442] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  412.358711] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  412.365978] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  412.373243] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  412.380529] warn_alloc_show_mem: 1 callbacks suppressed
[  412.380541] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  412.380543] Mem-Info:
[  412.380575] active_anon:45985 inactive_anon:296 isolated_anon:0
[  412.380575]  active_file:15 inactive_file:8 isolated_file:0
[  412.380575]  unevictable:0 dirty:0 writeback:0 unstable:0
[  412.380575]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  412.380575]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  412.380575]  free:13771 free_pcp:249 free_cma:0
[  412.385909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  412.393279] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  412.395680] Call Trace:
[  412.428471] 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
[  412.437829]  <IRQ>
[  412.465503] lowmem_reserve[]: 0 2818 6321 6321
[  412.468095]  dump_stack+0x244/0x39d
[  412.494188] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  412.496348]  ? dump_stack_print_info.cold.1+0x20/0x20
[  412.500899] lowmem_reserve[]: 0 0 3503 3503
[  412.504549]  warn_alloc.cold.116+0xb7/0x1bd
[  412.532059] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  412.537262]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  412.541557] lowmem_reserve[]: 0 0 0 0
[  412.545913]  ? lock_downgrade+0x900/0x900
[  412.574910] 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
[  412.579766]  ? trace_hardirqs_off+0xb8/0x310
[  412.583537] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  412.587692]  ? trace_hardirqs_off+0xb8/0x310
[  412.601193] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  412.605611]  __alloc_pages_slowpath+0x2651/0x2de0
[  412.620683] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  412.625124]  ? warn_alloc+0x120/0x120
[  412.640523] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  412.645368]  ? print_usage_bug+0xc0/0xc0
[  412.654178] 376 total pagecache pages
[  412.657995]  ? warn_alloc+0x120/0x120
[  412.666575] 0 pages in swap cache
[  412.670665]  ? warn_alloc+0x120/0x120
[  412.674438] Swap cache stats: add 0, delete 0, find 0/0
[  412.674447] Free swap  = 0kB
[  412.678245]  ? print_usage_bug+0xc0/0xc0
[  412.681668] Total swap = 0kB
[  412.685463]  ? kvm_clock_read+0x18/0x30
[  412.690826] 1965979 pages RAM
[  412.693873]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  412.697895] 0 pages HighMem/MovableOnly
[  412.697907] 342854 pages reserved
[  412.700931]  ? print_usage_bug+0xc0/0xc0
[  412.704917] 0 pages cma reserved
[  412.708027]  ? __lock_acquire+0x62f/0x4c20
[  412.713111] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  412.717024]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  412.720535] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  412.724506]  ? should_fail+0x22d/0xd01
[  412.727851] syz-fuzzer cpuset=/ mems_allowed=0
[  412.732081]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  412.768028]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  412.773198]  ? __lock_acquire+0x62f/0x4c20
[  412.777451]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  412.782561]  ? __lock_acquire+0x62f/0x4c20
[  412.786802]  ? should_fail+0x22d/0xd01
[  412.790694]  ? rcu_irq_exit+0x1a2/0x390
[  412.794683]  ? mark_held_locks+0x130/0x130
[  412.798931]  ? mark_held_locks+0x130/0x130
[  412.803184]  ? mark_held_locks+0xc7/0x130
[  412.807339]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  412.812359]  ? zap_class+0x640/0x640
[  412.816080]  ? print_usage_bug+0xc0/0xc0
[  412.820153]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.825699]  ? check_preemption_disabled+0x48/0x280
[  412.830754]  ? __lock_is_held+0xb5/0x140
[  412.834833]  __alloc_pages_nodemask+0xad8/0xea0
[  412.839514]  ? zap_class+0x640/0x640
[  412.843238]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  412.848273]  ? find_held_lock+0x36/0x1c0
[  412.852351]  ? ____cache_alloc_node+0x1c7/0x1e0
[  412.857031]  ? lock_downgrade+0x900/0x900
[  412.861202]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.866756]  cache_grow_begin+0xa5/0x8c0
[  412.870825]  ? do_raw_spin_unlock+0xa7/0x330
[  412.875246]  fallback_alloc+0x204/0x2e0
[  412.879229]  ____cache_alloc_node+0x1c7/0x1e0
[  412.883732]  kmem_cache_alloc_node+0xe3/0x730
[  412.888236]  ? ipv6_get_ifaddr+0x42e/0x620
[  412.892482]  __alloc_skb+0x119/0x770
[  412.896202]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  412.901491]  ? netdev_alloc_frag+0x1f0/0x1f0
[  412.905928]  ? lock_downgrade+0x900/0x900
[  412.910091]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.915634]  ? refcount_sub_and_test_checked+0x203/0x310
[  412.921097]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  412.926561]  ? addrconf_rs_timer+0x690/0x690
[  412.930996]  ndisc_alloc_skb+0x144/0x340
[  412.935082]  ndisc_send_rs+0x331/0x6e0
[  412.938982]  addrconf_rs_timer+0x314/0x690
[  412.943233]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  412.947488]  call_timer_fn+0x272/0x920
[  412.951381]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  412.955620]  ? process_timeout+0x40/0x40
[  412.959695]  ? __run_timers+0x7da/0xc70
[  412.963675]  ? _raw_spin_unlock_irq+0x27/0x80
[  412.968179]  ? _raw_spin_unlock_irq+0x27/0x80
[  412.972680]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  412.976926]  ? lockdep_hardirqs_on+0x296/0x5b0
[  412.981515]  ? trace_hardirqs_on+0xbd/0x310
[  412.985843]  ? kasan_check_read+0x11/0x20
[  412.989995]  ? __run_timers+0x7da/0xc70
[  412.993981]  ? trace_hardirqs_off_caller+0x310/0x310
[  412.999099]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  413.003347]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  413.007583]  __run_timers+0x7e5/0xc70
[  413.011398]  ? timer_fixup_init+0x70/0x70
[  413.015558]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  413.020581]  ? zap_class+0x640/0x640
[  413.024305]  ? enqueue_hrtimer+0x1a5/0x560
[  413.028549]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  413.033757]  ? find_held_lock+0x36/0x1c0
[  413.037831]  ? zap_class+0x640/0x640
[  413.041553]  ? pvclock_read_flags+0x160/0x160
[  413.046064]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.051657]  ? check_preemption_disabled+0x48/0x280
[  413.056694]  ? __lock_is_held+0xb5/0x140
[  413.060761]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.066315]  ? check_preemption_disabled+0x48/0x280
[  413.071340]  run_timer_softirq+0x52/0xb0
[  413.075412]  ? rcu_read_lock_sched_held+0x14f/0x180
[  413.080431]  __do_softirq+0x308/0xb7e
[  413.084238]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  413.088739]  ? lock_downgrade+0x900/0x900
[  413.092905]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  413.098025]  ? pvclock_read_flags+0x160/0x160
[  413.102554]  ? lapic_next_event+0x5a/0x90
[  413.106752]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.112299]  ? kvm_clock_read+0x18/0x30
[  413.116296]  ? kvm_sched_clock_read+0x9/0x20
[  413.120714]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.126264]  ? check_preemption_disabled+0x48/0x280
[  413.131293]  irq_exit+0x17f/0x1c0
[  413.134750]  smp_apic_timer_interrupt+0x1cb/0x760
[  413.139597]  ? smp_reschedule_interrupt+0x109/0x650
[  413.144622]  ? smp_call_function_single_interrupt+0x650/0x650
[  413.150512]  ? interrupt_entry+0xb5/0xc0
[  413.154580]  ? trace_hardirqs_off_caller+0xbb/0x310
[  413.159603]  ? trace_hardirqs_off_caller+0xbb/0x310
[  413.164628]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  413.169477]  ? trace_hardirqs_on_caller+0x310/0x310
[  413.174501]  ? trace_hardirqs_on_caller+0x310/0x310
[  413.179635]  ? task_prio+0x50/0x50
[  413.183185]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.188732]  ? check_preemption_disabled+0x48/0x280
[  413.193761]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  413.198621]  apic_timer_interrupt+0xf/0x20
[  413.202854]  </IRQ>
[  413.205107] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  413.210049] 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 42 f3
[  413.228958] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  413.236681] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  413.243964] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  413.251247] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  413.258537] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  413.265819] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  413.273165]  skb_clone+0x1bb/0x500
[  413.276719]  ? skb_split+0x11e0/0x11e0
[  413.280637]  ? check_preemption_disabled+0x48/0x280
[  413.285685]  ? __this_cpu_preempt_check+0x1c/0x20
[  413.290535]  ? __bpf_redirect+0x55b/0xb60
[  413.294688]  ? __switch_to_asm+0x34/0x70
[  413.298754]  ? __switch_to_asm+0x40/0x70
[  413.302828]  bpf_clone_redirect+0xb9/0x490
[  413.307092]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  413.312126]  ? __sched_text_start+0x8/0x8
[  413.316298]  ? find_held_lock+0x36/0x1c0
[  413.320371]  ? lock_acquire+0x1ed/0x520
[  413.324350]  ? bpf_test_run+0x3cb/0x780
[  413.328330]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.333913]  ? check_preemption_disabled+0x48/0x280
[  413.338965]  ? kasan_check_read+0x11/0x20
[  413.343115]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  413.348394]  ? rcu_softirq_qs+0x20/0x20
[  413.352373]  ? preempt_schedule+0x4d/0x60
[  413.356522]  ? ___preempt_schedule+0x16/0x18
[  413.360940]  ? bpf_test_run+0x25d/0x780
[  413.364932]  ? netlink_diag_dump+0x2a0/0x2a0
[  413.369363]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  413.374935]  ? bpf_test_init.isra.10+0x70/0x100
[  413.379611]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  413.384383]  ? bpf_test_finish.isra.9+0x260/0x260
[  413.389224]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  413.394765]  ? fput+0x130/0x1a0
[  413.398059]  ? __bpf_prog_get+0x9b/0x290
[  413.402130]  ? bpf_test_finish.isra.9+0x260/0x260
[  413.406973]  ? bpf_prog_test_run+0x130/0x1a0
[  413.411388]  ? __x64_sys_bpf+0x3db/0x520
[  413.415452]  ? bpf_prog_get+0x20/0x20
[  413.419276]  ? do_syscall_64+0x1b9/0x820
[  413.423338]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  413.428706]  ? syscall_return_slowpath+0x5e0/0x5e0
[  413.433636]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  413.438480]  ? trace_hardirqs_on_caller+0x310/0x310
[  413.443503]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  413.448523]  ? prepare_exit_to_usermode+0x291/0x3b0
[  413.453545]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  413.458395]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  413.463780] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  413.463864] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  413.470794] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  413.470799] Call Trace:
[  413.470805]  <IRQ>
[  413.470823]  dump_stack+0x244/0x39d
[  413.470843]  ? dump_stack_print_info.cold.1+0x20/0x20
[  413.470869]  warn_alloc.cold.116+0xb7/0x1bd
[  413.477389] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  413.486682]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  413.489245] syz-executor0 cpuset=syz0 mems_allowed=0
[  413.491389]  ? lock_downgrade+0x900/0x900
[  413.529019]  ? trace_hardirqs_off+0xb8/0x310
[  413.533444]  ? trace_hardirqs_off+0xb8/0x310
[  413.537861]  __alloc_pages_slowpath+0x2651/0x2de0
[  413.542736]  ? warn_alloc+0x120/0x120
[  413.546538]  ? print_usage_bug+0xc0/0xc0
[  413.550600]  ? warn_alloc+0x120/0x120
[  413.554436]  ? warn_alloc+0x120/0x120
[  413.558252]  ? print_usage_bug+0xc0/0xc0
[  413.562312]  ? kvm_clock_read+0x18/0x30
[  413.566292]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  413.571311]  ? print_usage_bug+0xc0/0xc0
[  413.575373]  ? __lock_acquire+0x62f/0x4c20
[  413.579616]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  413.585155]  ? should_fail+0x22d/0xd01
[  413.589068]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  413.594347]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  413.599450]  ? __lock_acquire+0x62f/0x4c20
[  413.603691]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  413.608808]  ? __lock_acquire+0x62f/0x4c20
[  413.613068]  ? should_fail+0x22d/0xd01
[  413.616953]  ? rcu_irq_exit+0x1a2/0x390
[  413.620936]  ? mark_held_locks+0x130/0x130
[  413.625189]  ? mark_held_locks+0x130/0x130
[  413.629448]  ? mark_held_locks+0xc7/0x130
[  413.633598]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  413.638614]  ? zap_class+0x640/0x640
[  413.642332]  ? print_usage_bug+0xc0/0xc0
[  413.646395]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.651938]  ? check_preemption_disabled+0x48/0x280
[  413.656965]  ? __lock_is_held+0xb5/0x140
[  413.661034]  __alloc_pages_nodemask+0xad8/0xea0
[  413.665714]  ? zap_class+0x640/0x640
[  413.669435]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  413.674462]  ? find_held_lock+0x36/0x1c0
[  413.678534]  ? ____cache_alloc_node+0x1c7/0x1e0
[  413.683206]  ? lock_downgrade+0x900/0x900
[  413.687363]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.692903]  cache_grow_begin+0xa5/0x8c0
[  413.696963]  ? do_raw_spin_unlock+0xa7/0x330
[  413.701377]  fallback_alloc+0x204/0x2e0
[  413.705365]  ____cache_alloc_node+0x1c7/0x1e0
[  413.709864]  kmem_cache_alloc_node+0xe3/0x730
[  413.714364]  ? ipv6_get_ifaddr+0x42e/0x620
[  413.718613]  __alloc_skb+0x119/0x770
[  413.722328]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  413.727612]  ? netdev_alloc_frag+0x1f0/0x1f0
[  413.732019]  ? lock_downgrade+0x900/0x900
[  413.736183]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.741720]  ? refcount_sub_and_test_checked+0x203/0x310
[  413.747174]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  413.752625]  ? addrconf_rs_timer+0x690/0x690
[  413.757076]  ndisc_alloc_skb+0x144/0x340
[  413.761147]  ndisc_send_rs+0x331/0x6e0
[  413.765050]  addrconf_rs_timer+0x314/0x690
[  413.769292]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  413.773539]  call_timer_fn+0x272/0x920
[  413.777430]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  413.781664]  ? process_timeout+0x40/0x40
[  413.785736]  ? mark_held_locks+0xc7/0x130
[  413.789888]  ? _raw_spin_unlock_irq+0x27/0x80
[  413.794382]  ? _raw_spin_unlock_irq+0x27/0x80
[  413.798878]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  413.803118]  ? lockdep_hardirqs_on+0x296/0x5b0
[  413.807706]  ? trace_hardirqs_on+0xbd/0x310
[  413.812050]  ? kasan_check_read+0x11/0x20
[  413.816193]  ? __run_timers+0x7da/0xc70
[  413.820174]  ? trace_hardirqs_off_caller+0x310/0x310
[  413.825285]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  413.829556]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  413.833804]  __run_timers+0x7e5/0xc70
[  413.837613]  ? timer_fixup_init+0x70/0x70
[  413.841772]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  413.846791]  ? zap_class+0x640/0x640
[  413.850513]  ? print_usage_bug+0xc0/0xc0
[  413.854581]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  413.859797]  ? find_held_lock+0x36/0x1c0
[  413.863879]  ? zap_class+0x640/0x640
[  413.867612]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.873157]  ? check_preemption_disabled+0x48/0x280
[  413.878271]  ? __lock_is_held+0xb5/0x140
[  413.882336]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.887876]  ? check_preemption_disabled+0x48/0x280
[  413.892897]  run_timer_softirq+0x52/0xb0
[  413.896964]  ? rcu_read_lock_sched_held+0x14f/0x180
[  413.901982]  __do_softirq+0x308/0xb7e
[  413.905787]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  413.910283]  ? lock_downgrade+0x900/0x900
[  413.914437]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  413.919547]  ? pvclock_read_flags+0x160/0x160
[  413.924057]  ? lapic_next_event+0x5a/0x90
[  413.928209]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.933750]  ? kvm_clock_read+0x18/0x30
[  413.937794]  ? kvm_sched_clock_read+0x9/0x20
[  413.942215]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  413.947753]  ? check_preemption_disabled+0x48/0x280
[  413.952778]  irq_exit+0x17f/0x1c0
[  413.956232]  smp_apic_timer_interrupt+0x1cb/0x760
[  413.961079]  ? smp_reschedule_interrupt+0x109/0x650
[  413.966098]  ? smp_call_function_single_interrupt+0x650/0x650
[  413.971988]  ? interrupt_entry+0xb5/0xc0
[  413.976057]  ? trace_hardirqs_off_caller+0xbb/0x310
[  413.981071]  ? trace_hardirqs_off_caller+0xbb/0x310
[  413.986119]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  413.990965]  ? trace_hardirqs_on_caller+0x310/0x310
[  413.995979]  ? trace_hardirqs_on_caller+0x310/0x310
[  414.001057]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  414.005906]  apic_timer_interrupt+0xf/0x20
[  414.010136]  </IRQ>
[  414.012375] RIP: 0010:dump_stack+0x358/0x39d
[  414.016788] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  414.035688] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  414.043393] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  414.050664] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  414.057933] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  414.065200] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  414.072467] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  414.079760]  ? dump_stack+0x34f/0x39d
[  414.083578]  ? dump_stack_print_info.cold.1+0x20/0x20
[  414.088771]  ? mark_held_locks+0x130/0x130
[  414.093010]  ? mark_held_locks+0x130/0x130
[  414.097287]  dump_header+0x27b/0xf72
[  414.101032]  ? pagefault_out_of_memory+0x197/0x197
[  414.105977]  ? __lock_acquire+0x62f/0x4c20
[  414.110222]  ? percpu_ref_get_many+0x240/0x240
[  414.114826]  ? print_usage_bug+0xc0/0xc0
[  414.118894]  ? zap_class+0x640/0x640
[  414.122612]  ? print_usage_bug+0xc0/0xc0
[  414.126673]  ? print_usage_bug+0xc0/0xc0
[  414.130769]  ? zap_class+0x640/0x640
[  414.134505]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.140060]  ? find_held_lock+0x36/0x1c0
[  414.144134]  ? mark_held_locks+0xc7/0x130
[  414.148283]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  414.153387]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  414.158496]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  414.163112]  ? trace_hardirqs_on+0xbd/0x310
[  414.167447]  ? kasan_check_read+0x11/0x20
[  414.171598]  ? ___ratelimit+0x3b4/0x672
[  414.175578]  ? trace_hardirqs_off_caller+0x310/0x310
[  414.180681]  ? trace_hardirqs_on+0x310/0x310
[  414.185091]  ? lock_downgrade+0x900/0x900
[  414.189243]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  414.194344]  ? ___ratelimit+0x3b9/0x672
[  414.198320]  ? idr_get_free+0xf70/0xf70
[  414.202292]  ? find_held_lock+0x36/0x1c0
[  414.206361]  oom_kill_process.cold.27+0x10/0x903
[  414.211116]  ? zap_class+0x640/0x640
[  414.214831]  ? check_preemption_disabled+0x48/0x280
[  414.219849]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  414.224783]  ? kasan_check_read+0x11/0x20
[  414.228960]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  414.234236]  ? oom_evaluate_task+0x540/0x540
[  414.238646]  ? find_held_lock+0x36/0x1c0
[  414.242713]  ? out_of_memory+0x974/0x1430
[  414.246864]  ? lock_downgrade+0x900/0x900
[  414.251010]  ? check_preemption_disabled+0x48/0x280
[  414.256047]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  414.260978]  ? kasan_check_read+0x11/0x20
[  414.265129]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  414.270410]  ? rcu_softirq_qs+0x20/0x20
[  414.274416]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  414.279988]  ? oom_evaluate_task+0x302/0x540
[  414.284399]  out_of_memory+0xa84/0x1430
[  414.288390]  ? oom_killer_disable+0x3a0/0x3a0
[  414.292889]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  414.297828]  ? __ww_mutex_check_waiters+0x160/0x160
[  414.302859]  __alloc_pages_slowpath+0x232c/0x2de0
[  414.307732]  ? warn_alloc+0x120/0x120
[  414.311665]  ? mark_held_locks+0x130/0x130
[  414.315907]  ? find_get_entry+0xaae/0x1120
[  414.320240]  ? filemap_map_pages+0x1a20/0x1a20
[  414.324826]  ? zap_class+0x640/0x640
[  414.328545]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.334083]  ? check_preemption_disabled+0x48/0x280
[  414.339131]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  414.344666]  ? should_fail+0x22d/0xd01
[  414.348560]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  414.353669]  ? zap_class+0x640/0x640
[  414.357461]  ? __lock_is_held+0xb5/0x140
[  414.361575]  ? mark_held_locks+0x130/0x130
[  414.365828]  ? lock_release+0xa00/0xa00
[  414.369852]  ? perf_trace_sched_process_exec+0x860/0x860
[  414.375302]  ? xa_load+0x2ba/0x460
[  414.378847]  ? lock_downgrade+0x900/0x900
[  414.383001]  ? __might_sleep+0x95/0x190
[  414.386978]  __alloc_pages_nodemask+0xad8/0xea0
[  414.391671]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  414.396685]  ? __page_cache_alloc+0x191/0x5c0
[  414.401176]  ? xa_load+0x2e1/0x460
[  414.404716]  ? xa_clear_mark+0x40/0x40
[  414.408606]  ? zap_class+0x640/0x640
[  414.412331]  ? zap_class+0x640/0x640
[  414.416052]  ? zap_class+0x640/0x640
[  414.419768]  ? __do_page_cache_readahead+0x663/0x810
[  414.424908]  ? find_held_lock+0x36/0x1c0
[  414.428976]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  414.434523]  alloc_pages_current+0x173/0x350
[  414.438947]  __page_cache_alloc+0x38c/0x5c0
[  414.443265]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  414.448196]  ? kasan_check_read+0x11/0x20
[  414.452344]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  414.457623]  ? generic_perform_write+0x6a0/0x6a0
[  414.462381]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  414.467921]  ? check_preemption_disabled+0x48/0x280
[  414.472950]  filemap_fault+0x1595/0x25f0
[  414.477027]  ? __lock_page_or_retry+0xa00/0xa00
[  414.481708]  ? mark_held_locks+0x130/0x130
[  414.485953]  ? filemap_map_pages+0xd6b/0x1a20
[  414.490450]  ? lock_downgrade+0x900/0x900
[  414.494598]  ? check_preemption_disabled+0x48/0x280
[  414.499619]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  414.504551]  ? kasan_check_read+0x11/0x20
[  414.508702]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  414.513980]  ? rcu_softirq_qs+0x20/0x20
[  414.517995]  ? filemap_map_pages+0xd92/0x1a20
[  414.522554]  ? find_get_entries_tag+0x1400/0x1400
[  414.527406]  ? debug_object_destroy+0x2b0/0x2b0
[  414.532080]  ? lock_pi_update_atomic+0x150/0x150
[  414.536864]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.542433]  ? lock_acquire+0x1ed/0x520
[  414.546411]  ? ext4_filemap_fault+0x7a/0xad
[  414.550743]  ? lock_release+0xa00/0xa00
[  414.554719]  ? perf_trace_sched_process_exec+0x860/0x860
[  414.560174]  ? print_usage_bug+0xc0/0xc0
[  414.564241]  ? print_usage_bug+0xc0/0xc0
[  414.568320]  ? down_read+0x8d/0x120
[  414.571962]  ? ext4_filemap_fault+0x7a/0xad
[  414.576284]  ? __down_interruptible+0x700/0x700
[  414.580968]  ext4_filemap_fault+0x82/0xad
[  414.585120]  __do_fault+0x100/0x6b0
[  414.588746]  ? find_held_lock+0x36/0x1c0
[  414.592824]  ? pmd_devmap_trans_unstable+0x220/0x220
[  414.597949]  ? mark_held_locks+0x130/0x130
[  414.602185]  ? mark_held_locks+0x130/0x130
[  414.606428]  ? debug_smp_processor_id+0x1c/0x20
[  414.611096]  ? perf_trace_lock+0x14d/0x7a0
[  414.615382]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  414.620956]  __handle_mm_fault+0x3ea0/0x5be0
[  414.625374]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  414.630221]  ? lock_is_held_type+0x210/0x210
[  414.634633]  ? __switch_to_asm+0x34/0x70
[  414.638695]  ? __switch_to_asm+0x34/0x70
[  414.642769]  ? zap_class+0x640/0x640
[  414.646485]  ? zap_class+0x640/0x640
[  414.650195]  ? __x64_sys_futex+0x53e/0x6a0
[  414.654439]  ? find_held_lock+0x36/0x1c0
[  414.658513]  ? handle_mm_fault+0x42a/0xc70
[  414.662748]  ? lock_downgrade+0x900/0x900
[  414.666912]  ? check_preemption_disabled+0x48/0x280
[  414.671946]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  414.676889]  ? kasan_check_read+0x11/0x20
[  414.681033]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  414.686329]  ? rcu_softirq_qs+0x20/0x20
[  414.690301]  ? trace_hardirqs_off_caller+0x310/0x310
[  414.695409]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  414.700949]  ? check_preemption_disabled+0x48/0x280
[  414.705972]  handle_mm_fault+0x54f/0xc70
[  414.710048]  ? __handle_mm_fault+0x5be0/0x5be0
[  414.714638]  ? find_vma+0x34/0x190
[  414.718188]  __do_page_fault+0x5e8/0xe60
[  414.722252]  ? trace_hardirqs_off+0xb8/0x310
[  414.726670]  do_page_fault+0xf2/0x7e0
[  414.730475]  ? vmalloc_sync_all+0x30/0x30
[  414.734637]  ? error_entry+0x70/0xd0
[  414.738353]  ? trace_hardirqs_off_caller+0xbb/0x310
[  414.743368]  ? trace_hardirqs_on_caller+0xc0/0x310
[  414.748299]  ? syscall_return_slowpath+0x5e0/0x5e0
[  414.753261]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  414.758121]  ? trace_hardirqs_on_caller+0x310/0x310
[  414.763140]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  414.768598]  ? prepare_exit_to_usermode+0x291/0x3b0
[  414.773612]  ? page_fault+0x8/0x30
[  414.777159]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  414.782008]  ? page_fault+0x8/0x30
[  414.785562]  page_fault+0x1e/0x30
[  414.789015] RIP: 0033:0x45ddf3
[  414.792223] Code: Bad RIP value.
[  414.795582] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  414.800947] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  414.808215] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  414.815482] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  414.822751] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  414.830018] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  414.837320] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  414.837325] warn_alloc_show_mem: 1 callbacks suppressed
[  414.837332] Mem-Info:
[  414.844694] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  414.850070] active_anon:45985 inactive_anon:296 isolated_anon:0
[  414.850070]  active_file:15 inactive_file:8 isolated_file:0
[  414.850070]  unevictable:0 dirty:0 writeback:0 unstable:0
[  414.850070]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  414.850070]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  414.850070]  free:13771 free_pcp:249 free_cma:0
[  414.852440] Call Trace:
[  414.861826] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  414.894582]  <IRQ>
[  414.897151] 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
[  414.924817]  dump_stack+0x244/0x39d
[  414.926940] lowmem_reserve[]: 0 2818 6321 6321
[  414.953066]  ? dump_stack_print_info.cold.1+0x20/0x20
[  414.956683] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  414.961266]  warn_alloc.cold.116+0xb7/0x1bd
[  414.966426] lowmem_reserve[]: 0 0 3503 3503
[  414.993927]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  414.998225] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  415.002550]  ? lock_downgrade+0x900/0x900
[  415.007369] lowmem_reserve[]: 0 0 0 0
[  415.036343]  ? trace_hardirqs_off+0xb8/0x310
[  415.040460] 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
[  415.044257]  ? trace_hardirqs_off+0xb8/0x310
[  415.048639] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  415.062159]  __alloc_pages_slowpath+0x2651/0x2de0
[  415.066566] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  415.081667]  ? warn_alloc+0x120/0x120
[  415.086471] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  415.101923]  ? print_usage_bug+0xc0/0xc0
[  415.105698] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  415.114525]  ? warn_alloc+0x120/0x120
[  415.118562] 376 total pagecache pages
[  415.127128]  ? warn_alloc+0x120/0x120
[  415.130914] 0 pages in swap cache
[  415.134702]  ? print_usage_bug+0xc0/0xc0
[  415.138485] Swap cache stats: add 0, delete 0, find 0/0
[  415.141969]  ? print_usage_bug+0xc0/0xc0
[  415.146021] Free swap  = 0kB
[  415.151401]  ? __lock_acquire+0x62f/0x4c20
[  415.155442] Total swap = 0kB
[  415.158460]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  415.162669] 1965979 pages RAM
[  415.165688]  ? should_fail+0x22d/0xd01
[  415.171203] 0 pages HighMem/MovableOnly
[  415.174301]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  415.178161] 342854 pages reserved
[  415.182127]  ? __lock_acquire+0x62f/0x4c20
[  415.187209] 0 pages cma reserved
[  415.190673]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  415.194953] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  415.198269]  ? __lock_acquire+0x62f/0x4c20
[  415.198282]  ? should_fail+0x22d/0xd01
[  415.198295]  ? find_held_lock+0x36/0x1c0
[  415.198316]  ? mark_held_locks+0x130/0x130
[  415.203461] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  415.209883]  ? mark_held_locks+0x130/0x130
[  415.214102] syz-fuzzer cpuset=/ mems_allowed=0
[  415.217984]  ? zap_class+0x640/0x640
[  415.248948]  ? zap_class+0x640/0x640
[  415.252664]  ? print_usage_bug+0xc0/0xc0
[  415.256722]  ? do_raw_spin_unlock+0xa7/0x330
[  415.261148]  ? zap_class+0x640/0x640
[  415.264864]  ? print_usage_bug+0xc0/0xc0
[  415.268930]  ? wq_watchdog_touch+0x9c/0xfe
[  415.273171]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.278713]  ? check_preemption_disabled+0x48/0x280
[  415.283741]  ? __lock_is_held+0xb5/0x140
[  415.287812]  __alloc_pages_nodemask+0xad8/0xea0
[  415.292483]  ? zap_class+0x640/0x640
[  415.296231]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  415.301257]  ? find_held_lock+0x36/0x1c0
[  415.305342]  ? ____cache_alloc_node+0x1c7/0x1e0
[  415.310012]  ? lock_downgrade+0x900/0x900
[  415.314177]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.319719]  cache_grow_begin+0xa5/0x8c0
[  415.323794]  ? do_raw_spin_unlock+0xa7/0x330
[  415.328213]  fallback_alloc+0x204/0x2e0
[  415.332196]  ____cache_alloc_node+0x1c7/0x1e0
[  415.336702]  kmem_cache_alloc_node+0xe3/0x730
[  415.341198]  ? ipv6_get_ifaddr+0x42e/0x620
[  415.345457]  __alloc_skb+0x119/0x770
[  415.349175]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  415.354460]  ? netdev_alloc_frag+0x1f0/0x1f0
[  415.358872]  ? lock_downgrade+0x900/0x900
[  415.363035]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.368583]  ? refcount_sub_and_test_checked+0x203/0x310
[  415.374046]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  415.379502]  ? addrconf_rs_timer+0x690/0x690
[  415.383928]  ndisc_alloc_skb+0x144/0x340
[  415.387998]  ndisc_send_rs+0x331/0x6e0
[  415.391893]  addrconf_rs_timer+0x314/0x690
[  415.396144]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  415.400389]  call_timer_fn+0x272/0x920
[  415.404276]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  415.408510]  ? process_timeout+0x40/0x40
[  415.412577]  ? __run_timers+0x7da/0xc70
[  415.416555]  ? _raw_spin_unlock_irq+0x27/0x80
[  415.421057]  ? _raw_spin_unlock_irq+0x27/0x80
[  415.425557]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  415.429792]  ? lockdep_hardirqs_on+0x296/0x5b0
[  415.434378]  ? trace_hardirqs_on+0xbd/0x310
[  415.438702]  ? kasan_check_read+0x11/0x20
[  415.442847]  ? __run_timers+0x7da/0xc70
[  415.446823]  ? trace_hardirqs_off_caller+0x310/0x310
[  415.451949]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  415.456205]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  415.460437]  __run_timers+0x7e5/0xc70
[  415.464248]  ? timer_fixup_init+0x70/0x70
[  415.468404]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  415.473426]  ? zap_class+0x640/0x640
[  415.477144]  ? enqueue_hrtimer+0x1a5/0x560
[  415.481381]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  415.486579]  ? find_held_lock+0x36/0x1c0
[  415.490691]  ? zap_class+0x640/0x640
[  415.494441]  ? pvclock_read_flags+0x160/0x160
[  415.498944]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.504486]  ? check_preemption_disabled+0x48/0x280
[  415.509515]  ? __lock_is_held+0xb5/0x140
[  415.513580]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.519120]  ? check_preemption_disabled+0x48/0x280
[  415.524179]  run_timer_softirq+0x52/0xb0
[  415.528271]  ? rcu_read_lock_sched_held+0x14f/0x180
[  415.533293]  __do_softirq+0x308/0xb7e
[  415.537099]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  415.541593]  ? lock_downgrade+0x900/0x900
[  415.545751]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  415.550863]  ? pvclock_read_flags+0x160/0x160
[  415.555361]  ? lapic_next_event+0x5a/0x90
[  415.559512]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.565073]  ? kvm_clock_read+0x18/0x30
[  415.569057]  ? kvm_sched_clock_read+0x9/0x20
[  415.573472]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.579025]  ? check_preemption_disabled+0x48/0x280
[  415.584065]  irq_exit+0x17f/0x1c0
[  415.587527]  smp_apic_timer_interrupt+0x1cb/0x760
[  415.592375]  ? smp_reschedule_interrupt+0x109/0x650
[  415.597397]  ? smp_call_function_single_interrupt+0x650/0x650
[  415.603279]  ? interrupt_entry+0xb5/0xc0
[  415.607359]  ? trace_hardirqs_off_caller+0xbb/0x310
[  415.612378]  ? trace_hardirqs_off_caller+0xbb/0x310
[  415.617399]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  415.622243]  ? trace_hardirqs_on_caller+0x310/0x310
[  415.627257]  ? trace_hardirqs_on_caller+0x310/0x310
[  415.632277]  ? task_prio+0x50/0x50
[  415.635820]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.641361]  ? check_preemption_disabled+0x48/0x280
[  415.646402]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  415.651251]  apic_timer_interrupt+0xf/0x20
[  415.655478]  </IRQ>
[  415.657717] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  415.662647] 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 42 f3
[  415.681544] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  415.689254] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  415.696526] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  415.703810] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  415.711106] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  415.718370] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  415.725732]  skb_clone+0x1bb/0x500
[  415.729276]  ? skb_split+0x11e0/0x11e0
[  415.733171]  ? check_preemption_disabled+0x48/0x280
[  415.738199]  ? __this_cpu_preempt_check+0x1c/0x20
[  415.743048]  ? __bpf_redirect+0x55b/0xb60
[  415.747202]  ? __switch_to_asm+0x34/0x70
[  415.751261]  ? __switch_to_asm+0x40/0x70
[  415.755331]  bpf_clone_redirect+0xb9/0x490
[  415.759576]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  415.764603]  ? __sched_text_start+0x8/0x8
[  415.768783]  ? find_held_lock+0x36/0x1c0
[  415.772851]  ? lock_acquire+0x1ed/0x520
[  415.776836]  ? bpf_test_run+0x3cb/0x780
[  415.780811]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.786346]  ? check_preemption_disabled+0x48/0x280
[  415.791367]  ? kasan_check_read+0x11/0x20
[  415.795516]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  415.800795]  ? rcu_softirq_qs+0x20/0x20
[  415.804790]  ? preempt_schedule+0x4d/0x60
[  415.808940]  ? ___preempt_schedule+0x16/0x18
[  415.813356]  ? bpf_test_run+0x25d/0x780
[  415.817342]  ? netlink_diag_dump+0x2a0/0x2a0
[  415.821756]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  415.827291]  ? bpf_test_init.isra.10+0x70/0x100
[  415.831966]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  415.836731]  ? bpf_test_finish.isra.9+0x260/0x260
[  415.841571]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  415.847113]  ? fput+0x130/0x1a0
[  415.850397]  ? __bpf_prog_get+0x9b/0x290
[  415.854481]  ? bpf_test_finish.isra.9+0x260/0x260
[  415.859340]  ? bpf_prog_test_run+0x130/0x1a0
[  415.863749]  ? __x64_sys_bpf+0x3db/0x520
[  415.867810]  ? bpf_prog_get+0x20/0x20
[  415.871635]  ? do_syscall_64+0x1b9/0x820
[  415.875692]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  415.881077]  ? syscall_return_slowpath+0x5e0/0x5e0
[  415.886006]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  415.890864]  ? trace_hardirqs_on_caller+0x310/0x310
[  415.895884]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  415.900913]  ? prepare_exit_to_usermode+0x291/0x3b0
[  415.905941]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  415.910796]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  415.916182] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  415.916250] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  415.923199] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  415.923204] Call Trace:
[  415.923211]  <IRQ>
[  415.923229]  dump_stack+0x244/0x39d
[  415.923252]  ? dump_stack_print_info.cold.1+0x20/0x20
[  415.929870] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  415.939120]  warn_alloc.cold.116+0xb7/0x1bd
[  415.941689] syz-executor0 cpuset=syz0 mems_allowed=0
[  415.943830]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  415.977358]  ? lock_downgrade+0x900/0x900
[  415.981519]  ? trace_hardirqs_off+0xb8/0x310
[  415.985936]  ? trace_hardirqs_off+0xb8/0x310
[  415.990354]  __alloc_pages_slowpath+0x2651/0x2de0
[  415.995252]  ? warn_alloc+0x120/0x120
[  415.999081]  ? print_usage_bug+0xc0/0xc0
[  416.003147]  ? warn_alloc+0x120/0x120
[  416.006955]  ? warn_alloc+0x120/0x120
[  416.010759]  ? print_usage_bug+0xc0/0xc0
[  416.014857]  ? print_usage_bug+0xc0/0xc0
[  416.018938]  ? __lock_acquire+0x62f/0x4c20
[  416.023210]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  416.028747]  ? should_fail+0x22d/0xd01
[  416.032640]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  416.037742]  ? __lock_acquire+0x62f/0x4c20
[  416.041984]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  416.047089]  ? __lock_acquire+0x62f/0x4c20
[  416.051321]  ? should_fail+0x22d/0xd01
[  416.055213]  ? find_held_lock+0x36/0x1c0
[  416.059282]  ? mark_held_locks+0x130/0x130
[  416.063522]  ? mark_held_locks+0x130/0x130
[  416.067757]  ? zap_class+0x640/0x640
[  416.071471]  ? zap_class+0x640/0x640
[  416.075187]  ? print_usage_bug+0xc0/0xc0
[  416.079242]  ? do_raw_spin_unlock+0xa7/0x330
[  416.083656]  ? zap_class+0x640/0x640
[  416.087368]  ? print_usage_bug+0xc0/0xc0
[  416.091438]  ? wq_watchdog_touch+0x9c/0xfe
[  416.095678]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.101221]  ? check_preemption_disabled+0x48/0x280
[  416.106245]  ? __lock_is_held+0xb5/0x140
[  416.110319]  __alloc_pages_nodemask+0xad8/0xea0
[  416.114985]  ? zap_class+0x640/0x640
[  416.118708]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  416.123734]  ? find_held_lock+0x36/0x1c0
[  416.127804]  ? ____cache_alloc_node+0x1c7/0x1e0
[  416.132481]  ? lock_downgrade+0x900/0x900
[  416.136641]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.142182]  cache_grow_begin+0xa5/0x8c0
[  416.146247]  ? do_raw_spin_unlock+0xa7/0x330
[  416.150665]  fallback_alloc+0x204/0x2e0
[  416.154661]  ____cache_alloc_node+0x1c7/0x1e0
[  416.159162]  kmem_cache_alloc_node+0xe3/0x730
[  416.163676]  ? ipv6_get_ifaddr+0x42e/0x620
[  416.167919]  __alloc_skb+0x119/0x770
[  416.171635]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  416.176917]  ? netdev_alloc_frag+0x1f0/0x1f0
[  416.181329]  ? lock_downgrade+0x900/0x900
[  416.185483]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.191023]  ? refcount_sub_and_test_checked+0x203/0x310
[  416.196505]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  416.201959]  ? addrconf_rs_timer+0x690/0x690
[  416.206640]  ndisc_alloc_skb+0x144/0x340
[  416.210711]  ndisc_send_rs+0x331/0x6e0
[  416.214622]  addrconf_rs_timer+0x314/0x690
[  416.218862]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.223112]  call_timer_fn+0x272/0x920
[  416.226997]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.231257]  ? process_timeout+0x40/0x40
[  416.235347]  ? mark_held_locks+0xc7/0x130
[  416.239512]  ? _raw_spin_unlock_irq+0x27/0x80
[  416.244006]  ? _raw_spin_unlock_irq+0x27/0x80
[  416.248507]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.252740]  ? lockdep_hardirqs_on+0x296/0x5b0
[  416.257326]  ? trace_hardirqs_on+0xbd/0x310
[  416.261648]  ? kasan_check_read+0x11/0x20
[  416.265797]  ? __run_timers+0x7da/0xc70
[  416.269776]  ? trace_hardirqs_off_caller+0x310/0x310
[  416.274907]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.279154]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.283387]  __run_timers+0x7e5/0xc70
[  416.287201]  ? timer_fixup_init+0x70/0x70
[  416.291351]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  416.296367]  ? zap_class+0x640/0x640
[  416.300087]  ? print_usage_bug+0xc0/0xc0
[  416.304150]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  416.309345]  ? find_held_lock+0x36/0x1c0
[  416.313539]  ? zap_class+0x640/0x640
[  416.317262]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.322801]  ? check_preemption_disabled+0x48/0x280
[  416.327828]  ? __lock_is_held+0xb5/0x140
[  416.331888]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.337438]  ? check_preemption_disabled+0x48/0x280
[  416.342462]  run_timer_softirq+0x52/0xb0
[  416.346525]  ? rcu_read_lock_sched_held+0x14f/0x180
[  416.351545]  __do_softirq+0x308/0xb7e
[  416.355350]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  416.359844]  ? lock_downgrade+0x900/0x900
[  416.364015]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  416.369136]  ? pvclock_read_flags+0x160/0x160
[  416.373641]  ? lapic_next_event+0x5a/0x90
[  416.377801]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.383350]  ? kvm_clock_read+0x18/0x30
[  416.387327]  ? kvm_sched_clock_read+0x9/0x20
[  416.391774]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  416.397316]  ? check_preemption_disabled+0x48/0x280
[  416.402349]  irq_exit+0x17f/0x1c0
[  416.405810]  smp_apic_timer_interrupt+0x1cb/0x760
[  416.410654]  ? smp_reschedule_interrupt+0x109/0x650
[  416.415677]  ? smp_call_function_single_interrupt+0x650/0x650
[  416.421564]  ? interrupt_entry+0xb5/0xc0
[  416.425633]  ? trace_hardirqs_off_caller+0xbb/0x310
[  416.430649]  ? trace_hardirqs_off_caller+0xbb/0x310
[  416.435670]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  416.440514]  ? trace_hardirqs_on_caller+0x310/0x310
[  416.445531]  ? trace_hardirqs_on_caller+0x310/0x310
[  416.450564]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  416.455426]  apic_timer_interrupt+0xf/0x20
[  416.459662]  </IRQ>
[  416.461906] RIP: 0010:dump_stack+0x358/0x39d
[  416.466317] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  416.485227] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  416.492941] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  416.500228] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  416.507508] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  416.514780] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  416.522060] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  416.529358]  ? dump_stack+0x34f/0x39d
[  416.533179]  ? dump_stack_print_info.cold.1+0x20/0x20
[  416.538375]  ? mark_held_locks+0x130/0x130
[  416.542620]  ? mark_held_locks+0x130/0x130
[  416.546861]  dump_header+0x27b/0xf72
[  416.550590]  ? pagefault_out_of_memory+0x197/0x197
[  416.555533]  ? __lock_acquire+0x62f/0x4c20
[  416.559774]  ? percpu_ref_get_many+0x240/0x240
[  416.564363]  ? print_usage_bug+0xc0/0xc0
[  416.568451]  ? zap_class+0x640/0x640
[  416.572173]  ? print_usage_bug+0xc0/0xc0
[  416.576237]  ? print_usage_bug+0xc0/0xc0
[  416.580305]  ? zap_class+0x640/0x640
[  416.584025]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.589592]  ? find_held_lock+0x36/0x1c0
[  416.593668]  ? mark_held_locks+0xc7/0x130
[  416.597853]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  416.602954]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  416.608072]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  416.612658]  ? trace_hardirqs_on+0xbd/0x310
[  416.616999]  ? kasan_check_read+0x11/0x20
[  416.621170]  ? ___ratelimit+0x3b4/0x672
[  416.625151]  ? trace_hardirqs_off_caller+0x310/0x310
[  416.630258]  ? trace_hardirqs_on+0x310/0x310
[  416.634670]  ? lock_downgrade+0x900/0x900
[  416.638829]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  416.643940]  ? ___ratelimit+0x3b9/0x672
[  416.647920]  ? idr_get_free+0xf70/0xf70
[  416.651899]  ? find_held_lock+0x36/0x1c0
[  416.655982]  oom_kill_process.cold.27+0x10/0x903
[  416.660749]  ? zap_class+0x640/0x640
[  416.664475]  ? check_preemption_disabled+0x48/0x280
[  416.669510]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  416.674449]  ? kasan_check_read+0x11/0x20
[  416.678602]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  416.683887]  ? oom_evaluate_task+0x540/0x540
[  416.688304]  ? find_held_lock+0x36/0x1c0
[  416.692382]  ? out_of_memory+0x974/0x1430
[  416.696544]  ? lock_downgrade+0x900/0x900
[  416.700695]  ? check_preemption_disabled+0x48/0x280
[  416.705722]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  416.710653]  ? kasan_check_read+0x11/0x20
[  416.714806]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  416.720085]  ? rcu_softirq_qs+0x20/0x20
[  416.724072]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  416.729613]  ? oom_evaluate_task+0x302/0x540
[  416.734028]  out_of_memory+0xa84/0x1430
[  416.738020]  ? oom_killer_disable+0x3a0/0x3a0
[  416.742526]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  416.747467]  ? __ww_mutex_check_waiters+0x160/0x160
[  416.752501]  __alloc_pages_slowpath+0x232c/0x2de0
[  416.757375]  ? warn_alloc+0x120/0x120
[  416.761179]  ? mark_held_locks+0x130/0x130
[  416.765429]  ? find_get_entry+0xaae/0x1120
[  416.769674]  ? filemap_map_pages+0x1a20/0x1a20
[  416.774265]  ? zap_class+0x640/0x640
[  416.777988]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.783531]  ? check_preemption_disabled+0x48/0x280
[  416.788550]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  416.794088]  ? should_fail+0x22d/0xd01
[  416.797983]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  416.803093]  ? zap_class+0x640/0x640
[  416.806838]  ? __lock_is_held+0xb5/0x140
[  416.810925]  ? mark_held_locks+0x130/0x130
[  416.815168]  ? lock_release+0xa00/0xa00
[  416.819147]  ? perf_trace_sched_process_exec+0x860/0x860
[  416.824598]  ? xa_load+0x2ba/0x460
[  416.828145]  ? lock_downgrade+0x900/0x900
[  416.832303]  ? __might_sleep+0x95/0x190
[  416.836287]  __alloc_pages_nodemask+0xad8/0xea0
[  416.840968]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  416.845988]  ? __page_cache_alloc+0x191/0x5c0
[  416.850486]  ? xa_load+0x2e1/0x460
[  416.854027]  ? xa_clear_mark+0x40/0x40
[  416.857925]  ? zap_class+0x640/0x640
[  416.861649]  ? zap_class+0x640/0x640
[  416.865362]  ? zap_class+0x640/0x640
[  416.869083]  ? __do_page_cache_readahead+0x663/0x810
[  416.874196]  ? find_held_lock+0x36/0x1c0
[  416.878271]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  416.883816]  alloc_pages_current+0x173/0x350
[  416.888240]  __page_cache_alloc+0x38c/0x5c0
[  416.892565]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  416.897494]  ? kasan_check_read+0x11/0x20
[  416.901659]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  416.906954]  ? generic_perform_write+0x6a0/0x6a0
[  416.911771]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  416.917327]  ? check_preemption_disabled+0x48/0x280
[  416.922370]  filemap_fault+0x1595/0x25f0
[  416.926466]  ? __lock_page_or_retry+0xa00/0xa00
[  416.931146]  ? mark_held_locks+0x130/0x130
[  416.935395]  ? filemap_map_pages+0xd6b/0x1a20
[  416.939932]  ? lock_downgrade+0x900/0x900
[  416.944082]  ? check_preemption_disabled+0x48/0x280
[  416.949109]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  416.954046]  ? kasan_check_read+0x11/0x20
[  416.958195]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  416.963472]  ? rcu_softirq_qs+0x20/0x20
[  416.967467]  ? filemap_map_pages+0xd92/0x1a20
[  416.971995]  ? find_get_entries_tag+0x1400/0x1400
[  416.976867]  ? debug_object_destroy+0x2b0/0x2b0
[  416.981548]  ? lock_pi_update_atomic+0x150/0x150
[  416.986307]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.991859]  ? lock_acquire+0x1ed/0x520
[  416.995835]  ? ext4_filemap_fault+0x7a/0xad
[  417.000169]  ? lock_release+0xa00/0xa00
[  417.004145]  ? perf_trace_sched_process_exec+0x860/0x860
[  417.009601]  ? print_usage_bug+0xc0/0xc0
[  417.013685]  ? print_usage_bug+0xc0/0xc0
[  417.017761]  ? down_read+0x8d/0x120
[  417.021386]  ? ext4_filemap_fault+0x7a/0xad
[  417.025718]  ? __down_interruptible+0x700/0x700
[  417.030409]  ext4_filemap_fault+0x82/0xad
[  417.034567]  __do_fault+0x100/0x6b0
[  417.038194]  ? find_held_lock+0x36/0x1c0
[  417.042260]  ? pmd_devmap_trans_unstable+0x220/0x220
[  417.047372]  ? mark_held_locks+0x130/0x130
[  417.051619]  ? mark_held_locks+0x130/0x130
[  417.055858]  ? debug_smp_processor_id+0x1c/0x20
[  417.060533]  ? perf_trace_lock+0x14d/0x7a0
[  417.064784]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  417.070329]  __handle_mm_fault+0x3ea0/0x5be0
[  417.074748]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  417.079597]  ? lock_is_held_type+0x210/0x210
[  417.084014]  ? __switch_to_asm+0x34/0x70
[  417.088080]  ? __switch_to_asm+0x34/0x70
[  417.092159]  ? zap_class+0x640/0x640
[  417.095871]  ? zap_class+0x640/0x640
[  417.099585]  ? __x64_sys_futex+0x53e/0x6a0
[  417.103833]  ? find_held_lock+0x36/0x1c0
[  417.107911]  ? handle_mm_fault+0x42a/0xc70
[  417.112151]  ? lock_downgrade+0x900/0x900
[  417.116305]  ? check_preemption_disabled+0x48/0x280
[  417.121334]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  417.126283]  ? kasan_check_read+0x11/0x20
[  417.130442]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  417.135721]  ? rcu_softirq_qs+0x20/0x20
[  417.139700]  ? trace_hardirqs_off_caller+0x310/0x310
[  417.144811]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  417.150464]  ? check_preemption_disabled+0x48/0x280
[  417.155674]  handle_mm_fault+0x54f/0xc70
[  417.159749]  ? __handle_mm_fault+0x5be0/0x5be0
[  417.164342]  ? find_vma+0x34/0x190
[  417.167890]  __do_page_fault+0x5e8/0xe60
[  417.171954]  ? trace_hardirqs_off+0xb8/0x310
[  417.176376]  do_page_fault+0xf2/0x7e0
[  417.180699]  ? vmalloc_sync_all+0x30/0x30
[  417.184852]  ? error_entry+0x70/0xd0
[  417.188569]  ? trace_hardirqs_off_caller+0xbb/0x310
[  417.193589]  ? trace_hardirqs_on_caller+0xc0/0x310
[  417.198525]  ? syscall_return_slowpath+0x5e0/0x5e0
[  417.203461]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  417.208311]  ? trace_hardirqs_on_caller+0x310/0x310
[  417.213365]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  417.218831]  ? prepare_exit_to_usermode+0x291/0x3b0
[  417.223854]  ? page_fault+0x8/0x30
[  417.227409]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  417.232264]  ? page_fault+0x8/0x30
[  417.235810]  page_fault+0x1e/0x30
[  417.239264] RIP: 0033:0x45ddf3
[  417.242467] Code: Bad RIP value.
[  417.245828] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  417.251194] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  417.258468] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  417.265745] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  417.273019] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  417.280306] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  417.287602] warn_alloc_show_mem: 1 callbacks suppressed
[  417.287614] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  417.287616] Mem-Info:
[  417.287648] active_anon:45985 inactive_anon:296 isolated_anon:0
[  417.287648]  active_file:15 inactive_file:8 isolated_file:0
[  417.287648]  unevictable:0 dirty:0 writeback:0 unstable:0
[  417.287648]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  417.287648]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  417.287648]  free:13771 free_pcp:249 free_cma:0
[  417.292986] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  417.300357] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  417.302765] Call Trace:
[  417.335561] 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
[  417.344921]  <IRQ>
[  417.372603] lowmem_reserve[]: 0 2818 6321 6321
[  417.375214]  dump_stack+0x244/0x39d
[  417.401307] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  417.403467]  ? dump_stack_print_info.cold.1+0x20/0x20
[  417.408009] lowmem_reserve[]: 0 0 3503 3503
[  417.411667]  warn_alloc.cold.116+0xb7/0x1bd
[  417.439146] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  417.444351]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  417.448650] lowmem_reserve[]: 0 0 0 0
[  417.452977]  ? lock_downgrade+0x900/0x900
[  417.481937] 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
[  417.486792]  ? trace_hardirqs_off+0xb8/0x310
[  417.490569] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  417.494726]  ? trace_hardirqs_off+0xb8/0x310
[  417.508226] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  417.512645]  __alloc_pages_slowpath+0x2651/0x2de0
[  417.527722] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  417.532156]  ? warn_alloc+0x120/0x120
[  417.547560] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  417.552404]  ? print_usage_bug+0xc0/0xc0
[  417.561244] 376 total pagecache pages
[  417.565064]  ? warn_alloc+0x120/0x120
[  417.573632] 0 pages in swap cache
[  417.577702]  ? warn_alloc+0x120/0x120
[  417.581478] Swap cache stats: add 0, delete 0, find 0/0
[  417.585276]  ? print_usage_bug+0xc0/0xc0
[  417.588699] Free swap  = 0kB
[  417.592501]  ? kvm_clock_read+0x18/0x30
[  417.597838] Total swap = 0kB
[  417.601913]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  417.604899] 1965979 pages RAM
[  417.608877]  ? print_usage_bug+0xc0/0xc0
[  417.611872] 0 pages HighMem/MovableOnly
[  417.616895]  ? __lock_acquire+0x62f/0x4c20
[  417.619974] 342854 pages reserved
[  417.624037]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  417.627994] 0 pages cma reserved
[  417.632262]  ? should_fail+0x22d/0xd01
[  417.635748] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  417.641221]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  417.641242]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  417.641259]  ? __lock_acquire+0x62f/0x4c20
[  417.644667] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  417.648493]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  417.654963] syz-fuzzer cpuset=/ mems_allowed=0
[  417.660249]  ? __lock_acquire+0x62f/0x4c20
[  417.693675]  ? should_fail+0x22d/0xd01
[  417.697577]  ? rcu_irq_exit+0x1a2/0x390
[  417.701574]  ? mark_held_locks+0x130/0x130
[  417.705827]  ? mark_held_locks+0x130/0x130
[  417.710085]  ? mark_held_locks+0xc7/0x130
[  417.714246]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  417.719279]  ? zap_class+0x640/0x640
[  417.723003]  ? print_usage_bug+0xc0/0xc0
[  417.727087]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.732641]  ? check_preemption_disabled+0x48/0x280
[  417.737681]  ? __lock_is_held+0xb5/0x140
[  417.741761]  __alloc_pages_nodemask+0xad8/0xea0
[  417.746439]  ? zap_class+0x640/0x640
[  417.750167]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  417.755208]  ? find_held_lock+0x36/0x1c0
[  417.759290]  ? ____cache_alloc_node+0x1c7/0x1e0
[  417.763974]  ? lock_downgrade+0x900/0x900
[  417.768140]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.773695]  cache_grow_begin+0xa5/0x8c0
[  417.777771]  ? do_raw_spin_unlock+0xa7/0x330
[  417.782199]  fallback_alloc+0x204/0x2e0
[  417.786190]  ____cache_alloc_node+0x1c7/0x1e0
[  417.790704]  kmem_cache_alloc_node+0xe3/0x730
[  417.795209]  ? ipv6_get_ifaddr+0x42e/0x620
[  417.799461]  __alloc_skb+0x119/0x770
[  417.803184]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  417.808480]  ? netdev_alloc_frag+0x1f0/0x1f0
[  417.812898]  ? lock_downgrade+0x900/0x900
[  417.817080]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.822629]  ? refcount_sub_and_test_checked+0x203/0x310
[  417.828096]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  417.833559]  ? addrconf_rs_timer+0x690/0x690
[  417.837990]  ndisc_alloc_skb+0x144/0x340
[  417.842073]  ndisc_send_rs+0x331/0x6e0
[  417.845976]  addrconf_rs_timer+0x314/0x690
[  417.850225]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  417.854480]  call_timer_fn+0x272/0x920
[  417.858379]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  417.862620]  ? process_timeout+0x40/0x40
[  417.866693]  ? __run_timers+0x7da/0xc70
[  417.870674]  ? _raw_spin_unlock_irq+0x27/0x80
[  417.875176]  ? _raw_spin_unlock_irq+0x27/0x80
[  417.879675]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  417.883922]  ? lockdep_hardirqs_on+0x296/0x5b0
[  417.888517]  ? trace_hardirqs_on+0xbd/0x310
[  417.892849]  ? kasan_check_read+0x11/0x20
[  417.897003]  ? __run_timers+0x7da/0xc70
[  417.900984]  ? trace_hardirqs_off_caller+0x310/0x310
[  417.906106]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  417.910357]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  417.914597]  __run_timers+0x7e5/0xc70
[  417.918416]  ? timer_fixup_init+0x70/0x70
[  417.922577]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  417.927612]  ? zap_class+0x640/0x640
[  417.931341]  ? enqueue_hrtimer+0x1a5/0x560
[  417.935590]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  417.940799]  ? find_held_lock+0x36/0x1c0
[  417.944874]  ? zap_class+0x640/0x640
[  417.948609]  ? pvclock_read_flags+0x160/0x160
[  417.953120]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.958675]  ? check_preemption_disabled+0x48/0x280
[  417.963716]  ? __lock_is_held+0xb5/0x140
[  417.967798]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.973352]  ? check_preemption_disabled+0x48/0x280
[  417.978385]  run_timer_softirq+0x52/0xb0
[  417.982459]  ? rcu_read_lock_sched_held+0x14f/0x180
[  417.987491]  __do_softirq+0x308/0xb7e
[  417.991310]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  417.995818]  ? lock_downgrade+0x900/0x900
[  417.999987]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  418.005113]  ? pvclock_read_flags+0x160/0x160
[  418.009635]  ? lapic_next_event+0x5a/0x90
[  418.013808]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.019372]  ? kvm_clock_read+0x18/0x30
[  418.023368]  ? kvm_sched_clock_read+0x9/0x20
[  418.027803]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.033364]  ? check_preemption_disabled+0x48/0x280
[  418.038410]  irq_exit+0x17f/0x1c0
[  418.041886]  smp_apic_timer_interrupt+0x1cb/0x760
[  418.046747]  ? smp_reschedule_interrupt+0x109/0x650
[  418.051781]  ? smp_call_function_single_interrupt+0x650/0x650
[  418.057685]  ? interrupt_entry+0xb5/0xc0
[  418.061761]  ? trace_hardirqs_off_caller+0xbb/0x310
[  418.066791]  ? trace_hardirqs_off_caller+0xbb/0x310
[  418.071826]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  418.076684]  ? trace_hardirqs_on_caller+0x310/0x310
[  418.081717]  ? trace_hardirqs_on_caller+0x310/0x310
[  418.086750]  ? task_prio+0x50/0x50
[  418.090310]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.095863]  ? check_preemption_disabled+0x48/0x280
[  418.100902]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  418.105781]  apic_timer_interrupt+0xf/0x20
[  418.110016]  </IRQ>
[  418.112274] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  418.117211] 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 42 f3
[  418.136130] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  418.143858] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  418.151144] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  418.158428] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  418.165712] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  418.173000] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  418.180330]  skb_clone+0x1bb/0x500
[  418.183882]  ? skb_split+0x11e0/0x11e0
[  418.187781]  ? check_preemption_disabled+0x48/0x280
[  418.192834]  ? __this_cpu_preempt_check+0x1c/0x20
[  418.197683]  ? __bpf_redirect+0x55b/0xb60
[  418.201840]  ? __switch_to_asm+0x34/0x70
[  418.205911]  ? __switch_to_asm+0x40/0x70
[  418.209986]  bpf_clone_redirect+0xb9/0x490
[  418.214235]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  418.219272]  ? __sched_text_start+0x8/0x8
[  418.223443]  ? find_held_lock+0x36/0x1c0
[  418.227520]  ? lock_acquire+0x1ed/0x520
[  418.231532]  ? bpf_test_run+0x3cb/0x780
[  418.235513]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.241070]  ? check_preemption_disabled+0x48/0x280
[  418.246102]  ? kasan_check_read+0x11/0x20
[  418.250262]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  418.255545]  ? rcu_softirq_qs+0x20/0x20
[  418.259532]  ? preempt_schedule+0x4d/0x60
[  418.263689]  ? ___preempt_schedule+0x16/0x18
[  418.268114]  ? bpf_test_run+0x25d/0x780
[  418.272109]  ? netlink_diag_dump+0x2a0/0x2a0
[  418.276531]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  418.282090]  ? bpf_test_init.isra.10+0x70/0x100
[  418.286791]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  418.291581]  ? bpf_test_finish.isra.9+0x260/0x260
[  418.296433]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  418.301983]  ? fput+0x130/0x1a0
[  418.305272]  ? __bpf_prog_get+0x9b/0x290
[  418.309349]  ? bpf_test_finish.isra.9+0x260/0x260
[  418.314722]  ? bpf_prog_test_run+0x130/0x1a0
[  418.319141]  ? __x64_sys_bpf+0x3db/0x520
[  418.323207]  ? bpf_prog_get+0x20/0x20
[  418.327036]  ? do_syscall_64+0x1b9/0x820
[  418.331117]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  418.336495]  ? syscall_return_slowpath+0x5e0/0x5e0
[  418.341460]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  418.346319]  ? trace_hardirqs_on_caller+0x310/0x310
[  418.351383]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  418.356417]  ? prepare_exit_to_usermode+0x291/0x3b0
[  418.361456]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  418.366323]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  418.371715] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  418.371784] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  418.378767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  418.378773] Call Trace:
[  418.378779]  <IRQ>
[  418.378803]  dump_stack+0x244/0x39d
[  418.378821]  ? dump_stack_print_info.cold.1+0x20/0x20
[  418.378845]  warn_alloc.cold.116+0xb7/0x1bd
[  418.385392] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  418.394704]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  418.397308] syz-executor0 cpuset=syz0 mems_allowed=0
[  418.399470]  ? lock_downgrade+0x900/0x900
[  418.437634]  ? trace_hardirqs_off+0xb8/0x310
[  418.442095]  ? trace_hardirqs_off+0xb8/0x310
[  418.446533]  __alloc_pages_slowpath+0x2651/0x2de0
[  418.451430]  ? warn_alloc+0x120/0x120
[  418.455253]  ? print_usage_bug+0xc0/0xc0
[  418.459334]  ? warn_alloc+0x120/0x120
[  418.463153]  ? warn_alloc+0x120/0x120
[  418.466969]  ? print_usage_bug+0xc0/0xc0
[  418.471060]  ? print_usage_bug+0xc0/0xc0
[  418.475141]  ? __lock_acquire+0x62f/0x4c20
[  418.479393]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  418.484952]  ? should_fail+0x22d/0xd01
[  418.488862]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  418.493984]  ? __lock_acquire+0x62f/0x4c20
[  418.498239]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  418.503357]  ? __lock_acquire+0x62f/0x4c20
[  418.507605]  ? should_fail+0x22d/0xd01
[  418.511508]  ? find_held_lock+0x36/0x1c0
[  418.515594]  ? mark_held_locks+0x130/0x130
[  418.519847]  ? mark_held_locks+0x130/0x130
[  418.524097]  ? zap_class+0x640/0x640
[  418.527822]  ? zap_class+0x640/0x640
[  418.531551]  ? print_usage_bug+0xc0/0xc0
[  418.535623]  ? do_raw_spin_unlock+0xa7/0x330
[  418.540050]  ? zap_class+0x640/0x640
[  418.543779]  ? print_usage_bug+0xc0/0xc0
[  418.547851]  ? wq_watchdog_touch+0x9c/0xfe
[  418.552106]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.557664]  ? check_preemption_disabled+0x48/0x280
[  418.562706]  ? __lock_is_held+0xb5/0x140
[  418.566795]  __alloc_pages_nodemask+0xad8/0xea0
[  418.571482]  ? zap_class+0x640/0x640
[  418.575218]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  418.580265]  ? find_held_lock+0x36/0x1c0
[  418.584350]  ? ____cache_alloc_node+0x1c7/0x1e0
[  418.589035]  ? lock_downgrade+0x900/0x900
[  418.593218]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.598779]  cache_grow_begin+0xa5/0x8c0
[  418.602855]  ? do_raw_spin_unlock+0xa7/0x330
[  418.607285]  fallback_alloc+0x204/0x2e0
[  418.611281]  ____cache_alloc_node+0x1c7/0x1e0
[  418.615795]  kmem_cache_alloc_node+0xe3/0x730
[  418.620306]  ? ipv6_get_ifaddr+0x42e/0x620
[  418.624564]  __alloc_skb+0x119/0x770
[  418.628291]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  418.633587]  ? netdev_alloc_frag+0x1f0/0x1f0
[  418.638009]  ? lock_downgrade+0x900/0x900
[  418.642190]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.647747]  ? refcount_sub_and_test_checked+0x203/0x310
[  418.653221]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  418.658693]  ? addrconf_rs_timer+0x690/0x690
[  418.663130]  ndisc_alloc_skb+0x144/0x340
[  418.667212]  ndisc_send_rs+0x331/0x6e0
[  418.671122]  addrconf_rs_timer+0x314/0x690
[  418.675380]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  418.679641]  call_timer_fn+0x272/0x920
[  418.683539]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  418.687802]  ? process_timeout+0x40/0x40
[  418.691882]  ? mark_held_locks+0xc7/0x130
[  418.696057]  ? _raw_spin_unlock_irq+0x27/0x80
[  418.700568]  ? _raw_spin_unlock_irq+0x27/0x80
[  418.705079]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  418.709330]  ? lockdep_hardirqs_on+0x296/0x5b0
[  418.713926]  ? trace_hardirqs_on+0xbd/0x310
[  418.718260]  ? kasan_check_read+0x11/0x20
[  418.722426]  ? __run_timers+0x7da/0xc70
[  418.726419]  ? trace_hardirqs_off_caller+0x310/0x310
[  418.731532]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  418.735777]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  418.740018]  __run_timers+0x7e5/0xc70
[  418.743843]  ? timer_fixup_init+0x70/0x70
[  418.747998]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  418.753018]  ? zap_class+0x640/0x640
[  418.756760]  ? print_usage_bug+0xc0/0xc0
[  418.760825]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  418.766024]  ? find_held_lock+0x36/0x1c0
[  418.770104]  ? zap_class+0x640/0x640
[  418.773830]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.779374]  ? check_preemption_disabled+0x48/0x280
[  418.784414]  ? __lock_is_held+0xb5/0x140
[  418.788478]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.794023]  ? check_preemption_disabled+0x48/0x280
[  418.799062]  run_timer_softirq+0x52/0xb0
[  418.803127]  ? rcu_read_lock_sched_held+0x14f/0x180
[  418.808157]  __do_softirq+0x308/0xb7e
[  418.811971]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  418.816480]  ? lock_downgrade+0x900/0x900
[  418.820645]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  418.825772]  ? pvclock_read_flags+0x160/0x160
[  418.830285]  ? lapic_next_event+0x5a/0x90
[  418.834457]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.840016]  ? kvm_clock_read+0x18/0x30
[  418.844014]  ? kvm_sched_clock_read+0x9/0x20
[  418.848452]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  418.854008]  ? check_preemption_disabled+0x48/0x280
[  418.859065]  irq_exit+0x17f/0x1c0
[  418.862537]  smp_apic_timer_interrupt+0x1cb/0x760
[  418.867395]  ? smp_reschedule_interrupt+0x109/0x650
[  418.872442]  ? smp_call_function_single_interrupt+0x650/0x650
[  418.878343]  ? interrupt_entry+0xb5/0xc0
[  418.882424]  ? trace_hardirqs_off_caller+0xbb/0x310
[  418.887455]  ? trace_hardirqs_off_caller+0xbb/0x310
[  418.892493]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  418.897357]  ? trace_hardirqs_on_caller+0x310/0x310
[  418.902390]  ? trace_hardirqs_on_caller+0x310/0x310
[  418.907449]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  418.912316]  apic_timer_interrupt+0xf/0x20
[  418.916554]  </IRQ>
[  418.918805] RIP: 0010:dump_stack+0x358/0x39d
[  418.923227] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  418.942142] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  418.949869] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  418.957156] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  418.964443] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  418.971729] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  418.979019] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  418.986339]  ? dump_stack+0x34f/0x39d
[  418.990174]  ? dump_stack_print_info.cold.1+0x20/0x20
[  418.995386]  ? mark_held_locks+0x130/0x130
[  418.999643]  ? mark_held_locks+0x130/0x130
[  419.003899]  dump_header+0x27b/0xf72
[  419.007640]  ? pagefault_out_of_memory+0x197/0x197
[  419.012600]  ? __lock_acquire+0x62f/0x4c20
[  419.016852]  ? percpu_ref_get_many+0x240/0x240
[  419.021453]  ? print_usage_bug+0xc0/0xc0
[  419.025525]  ? zap_class+0x640/0x640
[  419.029241]  ? print_usage_bug+0xc0/0xc0
[  419.033305]  ? print_usage_bug+0xc0/0xc0
[  419.037369]  ? zap_class+0x640/0x640
[  419.041093]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.046639]  ? find_held_lock+0x36/0x1c0
[  419.050713]  ? mark_held_locks+0xc7/0x130
[  419.054866]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  419.059973]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  419.065083]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  419.069670]  ? trace_hardirqs_on+0xbd/0x310
[  419.073992]  ? kasan_check_read+0x11/0x20
[  419.078141]  ? ___ratelimit+0x3b4/0x672
[  419.082119]  ? trace_hardirqs_off_caller+0x310/0x310
[  419.087227]  ? trace_hardirqs_on+0x310/0x310
[  419.091640]  ? lock_downgrade+0x900/0x900
[  419.095799]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  419.100904]  ? ___ratelimit+0x3b9/0x672
[  419.104888]  ? idr_get_free+0xf70/0xf70
[  419.108864]  ? find_held_lock+0x36/0x1c0
[  419.112941]  oom_kill_process.cold.27+0x10/0x903
[  419.117705]  ? zap_class+0x640/0x640
[  419.121429]  ? check_preemption_disabled+0x48/0x280
[  419.126450]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  419.131385]  ? kasan_check_read+0x11/0x20
[  419.135539]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  419.140819]  ? oom_evaluate_task+0x540/0x540
[  419.145235]  ? find_held_lock+0x36/0x1c0
[  419.149308]  ? out_of_memory+0x974/0x1430
[  419.153461]  ? lock_downgrade+0x900/0x900
[  419.157614]  ? check_preemption_disabled+0x48/0x280
[  419.162641]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  419.167573]  ? kasan_check_read+0x11/0x20
[  419.171741]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  419.177026]  ? rcu_softirq_qs+0x20/0x20
[  419.181482]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  419.187051]  ? oom_evaluate_task+0x302/0x540
[  419.191483]  out_of_memory+0xa84/0x1430
[  419.195474]  ? oom_killer_disable+0x3a0/0x3a0
[  419.199973]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  419.204914]  ? __ww_mutex_check_waiters+0x160/0x160
[  419.209949]  __alloc_pages_slowpath+0x232c/0x2de0
[  419.214829]  ? warn_alloc+0x120/0x120
[  419.218635]  ? mark_held_locks+0x130/0x130
[  419.222878]  ? find_get_entry+0xaae/0x1120
[  419.227130]  ? filemap_map_pages+0x1a20/0x1a20
[  419.231728]  ? zap_class+0x640/0x640
[  419.235456]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.240997]  ? check_preemption_disabled+0x48/0x280
[  419.246016]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  419.251564]  ? should_fail+0x22d/0xd01
[  419.255460]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  419.260577]  ? zap_class+0x640/0x640
[  419.264334]  ? __lock_is_held+0xb5/0x140
[  419.268423]  ? mark_held_locks+0x130/0x130
[  419.272681]  ? lock_release+0xa00/0xa00
[  419.276673]  ? perf_trace_sched_process_exec+0x860/0x860
[  419.282141]  ? xa_load+0x2ba/0x460
[  419.285704]  ? lock_downgrade+0x900/0x900
[  419.289881]  ? __might_sleep+0x95/0x190
[  419.293883]  __alloc_pages_nodemask+0xad8/0xea0
[  419.298585]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  419.303622]  ? __page_cache_alloc+0x191/0x5c0
[  419.308134]  ? xa_load+0x2e1/0x460
[  419.311691]  ? xa_clear_mark+0x40/0x40
[  419.315594]  ? zap_class+0x640/0x640
[  419.319331]  ? zap_class+0x640/0x640
[  419.323063]  ? zap_class+0x640/0x640
[  419.326791]  ? __do_page_cache_readahead+0x663/0x810
[  419.331913]  ? find_held_lock+0x36/0x1c0
[  419.335997]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  419.341560]  alloc_pages_current+0x173/0x350
[  419.345992]  __page_cache_alloc+0x38c/0x5c0
[  419.350330]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  419.355272]  ? kasan_check_read+0x11/0x20
[  419.359439]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  419.364741]  ? generic_perform_write+0x6a0/0x6a0
[  419.369515]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  419.375082]  ? check_preemption_disabled+0x48/0x280
[  419.380125]  filemap_fault+0x1595/0x25f0
[  419.384222]  ? __lock_page_or_retry+0xa00/0xa00
[  419.388910]  ? mark_held_locks+0x130/0x130
[  419.393171]  ? filemap_map_pages+0xd6b/0x1a20
[  419.397685]  ? lock_downgrade+0x900/0x900
[  419.401852]  ? check_preemption_disabled+0x48/0x280
[  419.406889]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  419.411833]  ? kasan_check_read+0x11/0x20
[  419.416000]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  419.421298]  ? rcu_softirq_qs+0x20/0x20
[  419.425302]  ? filemap_map_pages+0xd92/0x1a20
[  419.429828]  ? find_get_entries_tag+0x1400/0x1400
[  419.434697]  ? debug_object_destroy+0x2b0/0x2b0
[  419.439389]  ? lock_pi_update_atomic+0x150/0x150
[  419.444166]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.449732]  ? lock_acquire+0x1ed/0x520
[  419.453725]  ? ext4_filemap_fault+0x7a/0xad
[  419.458079]  ? lock_release+0xa00/0xa00
[  419.462074]  ? perf_trace_sched_process_exec+0x860/0x860
[  419.467552]  ? print_usage_bug+0xc0/0xc0
[  419.471633]  ? print_usage_bug+0xc0/0xc0
[  419.475715]  ? down_read+0x8d/0x120
[  419.479352]  ? ext4_filemap_fault+0x7a/0xad
[  419.483689]  ? __down_interruptible+0x700/0x700
[  419.488385]  ext4_filemap_fault+0x82/0xad
[  419.492553]  __do_fault+0x100/0x6b0
[  419.496186]  ? find_held_lock+0x36/0x1c0
[  419.500257]  ? pmd_devmap_trans_unstable+0x220/0x220
[  419.505372]  ? mark_held_locks+0x130/0x130
[  419.509618]  ? mark_held_locks+0x130/0x130
[  419.513861]  ? debug_smp_processor_id+0x1c/0x20
[  419.518538]  ? perf_trace_lock+0x14d/0x7a0
[  419.522790]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  419.528347]  __handle_mm_fault+0x3ea0/0x5be0
[  419.532772]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  419.537626]  ? lock_is_held_type+0x210/0x210
[  419.542055]  ? __switch_to_asm+0x34/0x70
[  419.546122]  ? __switch_to_asm+0x34/0x70
[  419.550205]  ? zap_class+0x640/0x640
[  419.553939]  ? zap_class+0x640/0x640
[  419.557656]  ? __x64_sys_futex+0x53e/0x6a0
[  419.561901]  ? find_held_lock+0x36/0x1c0
[  419.565981]  ? handle_mm_fault+0x42a/0xc70
[  419.570224]  ? lock_downgrade+0x900/0x900
[  419.574379]  ? check_preemption_disabled+0x48/0x280
[  419.579419]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  419.584355]  ? kasan_check_read+0x11/0x20
[  419.588512]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  419.593796]  ? rcu_softirq_qs+0x20/0x20
[  419.597774]  ? trace_hardirqs_off_caller+0x310/0x310
[  419.602893]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  419.608460]  ? check_preemption_disabled+0x48/0x280
[  419.613497]  handle_mm_fault+0x54f/0xc70
[  419.617579]  ? __handle_mm_fault+0x5be0/0x5be0
[  419.622173]  ? find_vma+0x34/0x190
[  419.625727]  __do_page_fault+0x5e8/0xe60
[  419.629799]  ? trace_hardirqs_off+0xb8/0x310
[  419.634227]  do_page_fault+0xf2/0x7e0
[  419.638075]  ? vmalloc_sync_all+0x30/0x30
[  419.642230]  ? error_entry+0x70/0xd0
[  419.645953]  ? trace_hardirqs_off_caller+0xbb/0x310
[  419.650977]  ? trace_hardirqs_on_caller+0xc0/0x310
[  419.655912]  ? syscall_return_slowpath+0x5e0/0x5e0
[  419.660854]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  419.665712]  ? trace_hardirqs_on_caller+0x310/0x310
[  419.670744]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  419.676215]  ? prepare_exit_to_usermode+0x291/0x3b0
[  419.681237]  ? page_fault+0x8/0x30
[  419.684787]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  419.689646]  ? page_fault+0x8/0x30
[  419.693196]  page_fault+0x1e/0x30
[  419.696648] RIP: 0033:0x45ddf3
[  419.699852] Code: Bad RIP value.
[  419.703219] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  419.708584] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  419.715881] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  419.723179] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  419.730465] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  419.737747] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  419.745055] warn_alloc_show_mem: 1 callbacks suppressed
[  419.745068] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  419.745070] Mem-Info:
[  419.745102] active_anon:45985 inactive_anon:296 isolated_anon:0
[  419.745102]  active_file:15 inactive_file:8 isolated_file:0
[  419.745102]  unevictable:0 dirty:0 writeback:0 unstable:0
[  419.745102]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  419.745102]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  419.745102]  free:13771 free_pcp:249 free_cma:0
[  419.750451] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  419.757830] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  419.760231] Call Trace:
[  419.793021] 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
[  419.802404]  <IRQ>
[  419.830076] lowmem_reserve[]: 0 2818 6321 6321
[  419.832676]  dump_stack+0x244/0x39d
[  419.858768] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  419.860935]  ? dump_stack_print_info.cold.1+0x20/0x20
[  419.865490] lowmem_reserve[]: 0 0 3503 3503
[  419.869132]  warn_alloc.cold.116+0xb7/0x1bd
[  419.896610] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  419.901810]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  419.906112] lowmem_reserve[]: 0 0 0 0
[  419.910439]  ? lock_downgrade+0x900/0x900
[  419.939398] 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
[  419.944255]  ? trace_hardirqs_off+0xb8/0x310
[  419.948033] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  419.952195]  ? trace_hardirqs_off+0xb8/0x310
[  419.965700] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  419.970122]  __alloc_pages_slowpath+0x2651/0x2de0
[  419.985199] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  419.989630]  ? warn_alloc+0x120/0x120
[  420.005040] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  420.009893]  ? print_usage_bug+0xc0/0xc0
[  420.018718] 376 total pagecache pages
[  420.022524]  ? warn_alloc+0x120/0x120
[  420.031087] 0 pages in swap cache
[  420.035151]  ? warn_alloc+0x120/0x120
[  420.038924] Swap cache stats: add 0, delete 0, find 0/0
[  420.038933] Free swap  = 0kB
[  420.042738]  ? print_usage_bug+0xc0/0xc0
[  420.046163] Total swap = 0kB
[  420.049968]  ? print_usage_bug+0xc0/0xc0
[  420.055310] 1965979 pages RAM
[  420.058328]  ? __lock_acquire+0x62f/0x4c20
[  420.062355] 0 pages HighMem/MovableOnly
[  420.062364] 342854 pages reserved
[  420.065391]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.069425] 0 pages cma reserved
[  420.072537]  ? should_fail+0x22d/0xd01
[  420.076807] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  420.080727]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  420.080745]  ? __lock_acquire+0x62f/0x4c20
[  420.080762]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  420.084262] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  420.089745]  ? __lock_acquire+0x62f/0x4c20
[  420.093106] syz-fuzzer cpuset=/ mems_allowed=0
[  420.096994]  ? should_fail+0x22d/0xd01
[  420.140807]  ? find_held_lock+0x36/0x1c0
[  420.144897]  ? mark_held_locks+0x130/0x130
[  420.149156]  ? mark_held_locks+0x130/0x130
[  420.153407]  ? zap_class+0x640/0x640
[  420.157136]  ? zap_class+0x640/0x640
[  420.160871]  ? print_usage_bug+0xc0/0xc0
[  420.164955]  ? do_raw_spin_unlock+0xa7/0x330
[  420.169383]  ? zap_class+0x640/0x640
[  420.173116]  ? print_usage_bug+0xc0/0xc0
[  420.177196]  ? wq_watchdog_touch+0x9c/0xfe
[  420.181464]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.187031]  ? check_preemption_disabled+0x48/0x280
[  420.192105]  ? __lock_is_held+0xb5/0x140
[  420.196196]  __alloc_pages_nodemask+0xad8/0xea0
[  420.200881]  ? zap_class+0x640/0x640
[  420.204621]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  420.209663]  ? find_held_lock+0x36/0x1c0
[  420.213749]  ? ____cache_alloc_node+0x1c7/0x1e0
[  420.218438]  ? lock_downgrade+0x900/0x900
[  420.222610]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.228170]  cache_grow_begin+0xa5/0x8c0
[  420.232248]  ? do_raw_spin_unlock+0xa7/0x330
[  420.236684]  fallback_alloc+0x204/0x2e0
[  420.240680]  ____cache_alloc_node+0x1c7/0x1e0
[  420.245202]  kmem_cache_alloc_node+0xe3/0x730
[  420.249719]  ? ipv6_get_ifaddr+0x42e/0x620
[  420.253984]  __alloc_skb+0x119/0x770
[  420.257716]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  420.263037]  ? netdev_alloc_frag+0x1f0/0x1f0
[  420.267480]  ? lock_downgrade+0x900/0x900
[  420.271657]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.277221]  ? refcount_sub_and_test_checked+0x203/0x310
[  420.282698]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  420.288171]  ? addrconf_rs_timer+0x690/0x690
[  420.292610]  ndisc_alloc_skb+0x144/0x340
[  420.296694]  ndisc_send_rs+0x331/0x6e0
[  420.300605]  addrconf_rs_timer+0x314/0x690
[  420.304861]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  420.309121]  call_timer_fn+0x272/0x920
[  420.313508]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  420.317759]  ? process_timeout+0x40/0x40
[  420.321836]  ? __run_timers+0x7da/0xc70
[  420.325824]  ? _raw_spin_unlock_irq+0x27/0x80
[  420.330333]  ? _raw_spin_unlock_irq+0x27/0x80
[  420.334846]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  420.339099]  ? lockdep_hardirqs_on+0x296/0x5b0
[  420.343699]  ? trace_hardirqs_on+0xbd/0x310
[  420.348036]  ? kasan_check_read+0x11/0x20
[  420.352212]  ? __run_timers+0x7da/0xc70
[  420.356201]  ? trace_hardirqs_off_caller+0x310/0x310
[  420.361329]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  420.365592]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  420.369840]  __run_timers+0x7e5/0xc70
[  420.373665]  ? timer_fixup_init+0x70/0x70
[  420.377833]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  420.382866]  ? zap_class+0x640/0x640
[  420.386602]  ? enqueue_hrtimer+0x1a5/0x560
[  420.390852]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  420.396075]  ? find_held_lock+0x36/0x1c0
[  420.400166]  ? zap_class+0x640/0x640
[  420.403900]  ? pvclock_read_flags+0x160/0x160
[  420.408422]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.413982]  ? check_preemption_disabled+0x48/0x280
[  420.419027]  ? __lock_is_held+0xb5/0x140
[  420.423120]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.428678]  ? check_preemption_disabled+0x48/0x280
[  420.433721]  run_timer_softirq+0x52/0xb0
[  420.437801]  ? rcu_read_lock_sched_held+0x14f/0x180
[  420.442837]  __do_softirq+0x308/0xb7e
[  420.446663]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  420.451171]  ? lock_downgrade+0x900/0x900
[  420.455341]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  420.460497]  ? pvclock_read_flags+0x160/0x160
[  420.465013]  ? lapic_next_event+0x5a/0x90
[  420.469189]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.474749]  ? kvm_clock_read+0x18/0x30
[  420.478739]  ? kvm_sched_clock_read+0x9/0x20
[  420.483168]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.488725]  ? check_preemption_disabled+0x48/0x280
[  420.493767]  irq_exit+0x17f/0x1c0
[  420.497243]  smp_apic_timer_interrupt+0x1cb/0x760
[  420.502105]  ? smp_reschedule_interrupt+0x109/0x650
[  420.507143]  ? smp_call_function_single_interrupt+0x650/0x650
[  420.513054]  ? interrupt_entry+0xb5/0xc0
[  420.517153]  ? trace_hardirqs_off_caller+0xbb/0x310
[  420.522186]  ? trace_hardirqs_off_caller+0xbb/0x310
[  420.527219]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  420.532085]  ? trace_hardirqs_on_caller+0x310/0x310
[  420.537117]  ? trace_hardirqs_on_caller+0x310/0x310
[  420.542155]  ? task_prio+0x50/0x50
[  420.545713]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.551268]  ? check_preemption_disabled+0x48/0x280
[  420.556309]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  420.561177]  apic_timer_interrupt+0xf/0x20
[  420.565414]  </IRQ>
[  420.567662] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  420.572604] 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 42 f3
[  420.591524] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  420.599254] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  420.606545] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  420.613830] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  420.621117] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  420.628403] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  420.635737]  skb_clone+0x1bb/0x500
[  420.639300]  ? skb_split+0x11e0/0x11e0
[  420.643206]  ? check_preemption_disabled+0x48/0x280
[  420.648250]  ? __this_cpu_preempt_check+0x1c/0x20
[  420.653110]  ? __bpf_redirect+0x55b/0xb60
[  420.657275]  ? __switch_to_asm+0x34/0x70
[  420.661354]  ? __switch_to_asm+0x40/0x70
[  420.665436]  bpf_clone_redirect+0xb9/0x490
[  420.669695]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  420.674737]  ? __sched_text_start+0x8/0x8
[  420.678925]  ? find_held_lock+0x36/0x1c0
[  420.683012]  ? lock_acquire+0x1ed/0x520
[  420.687009]  ? bpf_test_run+0x3cb/0x780
[  420.691024]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.696587]  ? check_preemption_disabled+0x48/0x280
[  420.701626]  ? kasan_check_read+0x11/0x20
[  420.705791]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  420.711091]  ? rcu_softirq_qs+0x20/0x20
[  420.715088]  ? preempt_schedule+0x4d/0x60
[  420.719254]  ? ___preempt_schedule+0x16/0x18
[  420.723685]  ? bpf_test_run+0x25d/0x780
[  420.727684]  ? netlink_diag_dump+0x2a0/0x2a0
[  420.732107]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.737660]  ? bpf_test_init.isra.10+0x70/0x100
[  420.742352]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  420.747150]  ? bpf_test_finish.isra.9+0x260/0x260
[  420.752011]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  420.757570]  ? fput+0x130/0x1a0
[  420.760868]  ? __bpf_prog_get+0x9b/0x290
[  420.764949]  ? bpf_test_finish.isra.9+0x260/0x260
[  420.769809]  ? bpf_prog_test_run+0x130/0x1a0
[  420.774232]  ? __x64_sys_bpf+0x3db/0x520
[  420.778305]  ? bpf_prog_get+0x20/0x20
[  420.782143]  ? do_syscall_64+0x1b9/0x820
[  420.786217]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  420.791614]  ? syscall_return_slowpath+0x5e0/0x5e0
[  420.796555]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  420.801414]  ? trace_hardirqs_on_caller+0x310/0x310
[  420.806449]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  420.811504]  ? prepare_exit_to_usermode+0x291/0x3b0
[  420.816593]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  420.821457]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  420.826853] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  420.826924] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  420.833878] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  420.833883] Call Trace:
[  420.833890]  <IRQ>
[  420.833913]  dump_stack+0x244/0x39d
[  420.833931]  ? dump_stack_print_info.cold.1+0x20/0x20
[  420.833956]  warn_alloc.cold.116+0xb7/0x1bd
[  420.841066] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  420.849809]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  420.849830]  ? lock_downgrade+0x900/0x900
[  420.852582] syz-executor0 cpuset=syz0 mems_allowed=0
[  420.854735]  ? trace_hardirqs_off+0xb8/0x310
[  420.854756]  ? trace_hardirqs_off+0xb8/0x310
[  420.901322]  __alloc_pages_slowpath+0x2651/0x2de0
[  420.906212]  ? warn_alloc+0x120/0x120
[  420.910033]  ? print_usage_bug+0xc0/0xc0
[  420.914120]  ? warn_alloc+0x120/0x120
[  420.917934]  ? warn_alloc+0x120/0x120
[  420.921746]  ? print_usage_bug+0xc0/0xc0
[  420.925824]  ? print_usage_bug+0xc0/0xc0
[  420.929895]  ? __lock_acquire+0x62f/0x4c20
[  420.934147]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.939700]  ? should_fail+0x22d/0xd01
[  420.943610]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  420.948734]  ? __lock_acquire+0x62f/0x4c20
[  420.952985]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  420.958100]  ? __lock_acquire+0x62f/0x4c20
[  420.962347]  ? should_fail+0x22d/0xd01
[  420.966247]  ? find_held_lock+0x36/0x1c0
[  420.970331]  ? mark_held_locks+0x130/0x130
[  420.974579]  ? mark_held_locks+0x130/0x130
[  420.978818]  ? zap_class+0x640/0x640
[  420.982554]  ? zap_class+0x640/0x640
[  420.986281]  ? print_usage_bug+0xc0/0xc0
[  420.990348]  ? do_raw_spin_unlock+0xa7/0x330
[  420.994765]  ? zap_class+0x640/0x640
[  420.998486]  ? print_usage_bug+0xc0/0xc0
[  421.002553]  ? wq_watchdog_touch+0x9c/0xfe
[  421.006801]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.012360]  ? check_preemption_disabled+0x48/0x280
[  421.017401]  ? __lock_is_held+0xb5/0x140
[  421.021483]  __alloc_pages_nodemask+0xad8/0xea0
[  421.026161]  ? zap_class+0x640/0x640
[  421.029883]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  421.034918]  ? find_held_lock+0x36/0x1c0
[  421.038993]  ? ____cache_alloc_node+0x1c7/0x1e0
[  421.043674]  ? lock_downgrade+0x900/0x900
[  421.047835]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.053386]  cache_grow_begin+0xa5/0x8c0
[  421.057457]  ? do_raw_spin_unlock+0xa7/0x330
[  421.061880]  fallback_alloc+0x204/0x2e0
[  421.065867]  ____cache_alloc_node+0x1c7/0x1e0
[  421.070376]  kmem_cache_alloc_node+0xe3/0x730
[  421.074886]  ? ipv6_get_ifaddr+0x42e/0x620
[  421.079149]  __alloc_skb+0x119/0x770
[  421.082880]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  421.088185]  ? netdev_alloc_frag+0x1f0/0x1f0
[  421.092603]  ? lock_downgrade+0x900/0x900
[  421.096762]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.102313]  ? refcount_sub_and_test_checked+0x203/0x310
[  421.107778]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  421.113242]  ? addrconf_rs_timer+0x690/0x690
[  421.117669]  ndisc_alloc_skb+0x144/0x340
[  421.121741]  ndisc_send_rs+0x331/0x6e0
[  421.125636]  addrconf_rs_timer+0x314/0x690
[  421.129880]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.134128]  call_timer_fn+0x272/0x920
[  421.138021]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.142271]  ? process_timeout+0x40/0x40
[  421.146360]  ? mark_held_locks+0xc7/0x130
[  421.150515]  ? _raw_spin_unlock_irq+0x27/0x80
[  421.155013]  ? _raw_spin_unlock_irq+0x27/0x80
[  421.159520]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.163765]  ? lockdep_hardirqs_on+0x296/0x5b0
[  421.168361]  ? trace_hardirqs_on+0xbd/0x310
[  421.172695]  ? kasan_check_read+0x11/0x20
[  421.176851]  ? __run_timers+0x7da/0xc70
[  421.181311]  ? trace_hardirqs_off_caller+0x310/0x310
[  421.186430]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.190683]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.194922]  __run_timers+0x7e5/0xc70
[  421.198740]  ? timer_fixup_init+0x70/0x70
[  421.202901]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  421.207923]  ? zap_class+0x640/0x640
[  421.211646]  ? print_usage_bug+0xc0/0xc0
[  421.215716]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  421.220920]  ? find_held_lock+0x36/0x1c0
[  421.224993]  ? zap_class+0x640/0x640
[  421.228721]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.234275]  ? check_preemption_disabled+0x48/0x280
[  421.239309]  ? __lock_is_held+0xb5/0x140
[  421.243381]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.248933]  ? check_preemption_disabled+0x48/0x280
[  421.253965]  run_timer_softirq+0x52/0xb0
[  421.258029]  ? rcu_read_lock_sched_held+0x14f/0x180
[  421.263070]  __do_softirq+0x308/0xb7e
[  421.266887]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  421.271393]  ? lock_downgrade+0x900/0x900
[  421.275556]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  421.280679]  ? pvclock_read_flags+0x160/0x160
[  421.285183]  ? lapic_next_event+0x5a/0x90
[  421.289340]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.294894]  ? kvm_clock_read+0x18/0x30
[  421.298875]  ? kvm_sched_clock_read+0x9/0x20
[  421.303297]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  421.308849]  ? check_preemption_disabled+0x48/0x280
[  421.313881]  irq_exit+0x17f/0x1c0
[  421.317343]  smp_apic_timer_interrupt+0x1cb/0x760
[  421.322189]  ? smp_reschedule_interrupt+0x109/0x650
[  421.327222]  ? smp_call_function_single_interrupt+0x650/0x650
[  421.333118]  ? interrupt_entry+0xb5/0xc0
[  421.337190]  ? trace_hardirqs_off_caller+0xbb/0x310
[  421.342217]  ? trace_hardirqs_off_caller+0xbb/0x310
[  421.347244]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  421.352101]  ? trace_hardirqs_on_caller+0x310/0x310
[  421.357123]  ? trace_hardirqs_on_caller+0x310/0x310
[  421.362162]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  421.367029]  apic_timer_interrupt+0xf/0x20
[  421.371270]  </IRQ>
[  421.373515] RIP: 0010:dump_stack+0x358/0x39d
[  421.377932] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  421.396847] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  421.404569] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  421.411852] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  421.419147] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  421.426435] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  421.433714] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  421.441022]  ? dump_stack+0x34f/0x39d
[  421.444852]  ? dump_stack_print_info.cold.1+0x20/0x20
[  421.450063]  ? mark_held_locks+0x130/0x130
[  421.454304]  ? mark_held_locks+0x130/0x130
[  421.458550]  dump_header+0x27b/0xf72
[  421.462332]  ? pagefault_out_of_memory+0x197/0x197
[  421.467281]  ? __lock_acquire+0x62f/0x4c20
[  421.471529]  ? percpu_ref_get_many+0x240/0x240
[  421.476120]  ? print_usage_bug+0xc0/0xc0
[  421.480190]  ? zap_class+0x640/0x640
[  421.484026]  ? print_usage_bug+0xc0/0xc0
[  421.488096]  ? print_usage_bug+0xc0/0xc0
[  421.492166]  ? zap_class+0x640/0x640
[  421.495894]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.501454]  ? find_held_lock+0x36/0x1c0
[  421.505535]  ? mark_held_locks+0xc7/0x130
[  421.509692]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  421.514806]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  421.519919]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  421.524511]  ? trace_hardirqs_on+0xbd/0x310
[  421.528837]  ? kasan_check_read+0x11/0x20
[  421.532992]  ? ___ratelimit+0x3b4/0x672
[  421.536976]  ? trace_hardirqs_off_caller+0x310/0x310
[  421.542192]  ? trace_hardirqs_on+0x310/0x310
[  421.546605]  ? lock_downgrade+0x900/0x900
[  421.550764]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  421.555880]  ? ___ratelimit+0x3b9/0x672
[  421.559859]  ? idr_get_free+0xf70/0xf70
[  421.563839]  ? find_held_lock+0x36/0x1c0
[  421.567913]  oom_kill_process.cold.27+0x10/0x903
[  421.572678]  ? zap_class+0x640/0x640
[  421.576395]  ? check_preemption_disabled+0x48/0x280
[  421.581435]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  421.586373]  ? kasan_check_read+0x11/0x20
[  421.590534]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  421.595839]  ? oom_evaluate_task+0x540/0x540
[  421.600258]  ? find_held_lock+0x36/0x1c0
[  421.604332]  ? out_of_memory+0x974/0x1430
[  421.608491]  ? lock_downgrade+0x900/0x900
[  421.612659]  ? check_preemption_disabled+0x48/0x280
[  421.617686]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  421.622623]  ? kasan_check_read+0x11/0x20
[  421.626778]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  421.632070]  ? rcu_softirq_qs+0x20/0x20
[  421.636069]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  421.641616]  ? oom_evaluate_task+0x302/0x540
[  421.646037]  out_of_memory+0xa84/0x1430
[  421.650032]  ? oom_killer_disable+0x3a0/0x3a0
[  421.654558]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  421.659499]  ? __ww_mutex_check_waiters+0x160/0x160
[  421.664536]  __alloc_pages_slowpath+0x232c/0x2de0
[  421.669424]  ? warn_alloc+0x120/0x120
[  421.673232]  ? mark_held_locks+0x130/0x130
[  421.677479]  ? find_get_entry+0xaae/0x1120
[  421.681732]  ? filemap_map_pages+0x1a20/0x1a20
[  421.686344]  ? zap_class+0x640/0x640
[  421.690079]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.695632]  ? check_preemption_disabled+0x48/0x280
[  421.700657]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  421.706203]  ? should_fail+0x22d/0xd01
[  421.710103]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  421.715217]  ? zap_class+0x640/0x640
[  421.718963]  ? __lock_is_held+0xb5/0x140
[  421.723039]  ? mark_held_locks+0x130/0x130
[  421.727292]  ? lock_release+0xa00/0xa00
[  421.731274]  ? perf_trace_sched_process_exec+0x860/0x860
[  421.736730]  ? xa_load+0x2ba/0x460
[  421.740300]  ? lock_downgrade+0x900/0x900
[  421.744462]  ? __might_sleep+0x95/0x190
[  421.748451]  __alloc_pages_nodemask+0xad8/0xea0
[  421.753138]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  421.758160]  ? __page_cache_alloc+0x191/0x5c0
[  421.762658]  ? xa_load+0x2e1/0x460
[  421.766202]  ? xa_clear_mark+0x40/0x40
[  421.770101]  ? zap_class+0x640/0x640
[  421.773828]  ? zap_class+0x640/0x640
[  421.777545]  ? zap_class+0x640/0x640
[  421.781261]  ? __do_page_cache_readahead+0x663/0x810
[  421.786380]  ? find_held_lock+0x36/0x1c0
[  421.790457]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  421.796013]  alloc_pages_current+0x173/0x350
[  421.800445]  __page_cache_alloc+0x38c/0x5c0
[  421.804772]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  421.809710]  ? kasan_check_read+0x11/0x20
[  421.813865]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  421.819157]  ? generic_perform_write+0x6a0/0x6a0
[  421.823921]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  421.829473]  ? check_preemption_disabled+0x48/0x280
[  421.834505]  filemap_fault+0x1595/0x25f0
[  421.838584]  ? __lock_page_or_retry+0xa00/0xa00
[  421.843264]  ? mark_held_locks+0x130/0x130
[  421.847515]  ? filemap_map_pages+0xd6b/0x1a20
[  421.852019]  ? lock_downgrade+0x900/0x900
[  421.856180]  ? check_preemption_disabled+0x48/0x280
[  421.861212]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  421.866149]  ? kasan_check_read+0x11/0x20
[  421.870327]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  421.875618]  ? rcu_softirq_qs+0x20/0x20
[  421.879617]  ? filemap_map_pages+0xd92/0x1a20
[  421.884134]  ? find_get_entries_tag+0x1400/0x1400
[  421.888992]  ? debug_object_destroy+0x2b0/0x2b0
[  421.893671]  ? lock_pi_update_atomic+0x150/0x150
[  421.898453]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.904013]  ? lock_acquire+0x1ed/0x520
[  421.907997]  ? ext4_filemap_fault+0x7a/0xad
[  421.912347]  ? lock_release+0xa00/0xa00
[  421.916326]  ? perf_trace_sched_process_exec+0x860/0x860
[  421.921790]  ? print_usage_bug+0xc0/0xc0
[  421.925856]  ? print_usage_bug+0xc0/0xc0
[  421.929935]  ? down_read+0x8d/0x120
[  421.933567]  ? ext4_filemap_fault+0x7a/0xad
[  421.937894]  ? __down_interruptible+0x700/0x700
[  421.942580]  ext4_filemap_fault+0x82/0xad
[  421.946741]  __do_fault+0x100/0x6b0
[  421.950369]  ? find_held_lock+0x36/0x1c0
[  421.954437]  ? pmd_devmap_trans_unstable+0x220/0x220
[  421.959551]  ? mark_held_locks+0x130/0x130
[  421.963789]  ? mark_held_locks+0x130/0x130
[  421.968032]  ? debug_smp_processor_id+0x1c/0x20
[  421.972712]  ? perf_trace_lock+0x14d/0x7a0
[  421.977003]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  421.982558]  __handle_mm_fault+0x3ea0/0x5be0
[  421.986986]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  421.991834]  ? lock_is_held_type+0x210/0x210
[  421.996256]  ? __switch_to_asm+0x34/0x70
[  422.000318]  ? __switch_to_asm+0x34/0x70
[  422.004400]  ? zap_class+0x640/0x640
[  422.008129]  ? zap_class+0x640/0x640
[  422.011844]  ? __x64_sys_futex+0x53e/0x6a0
[  422.016093]  ? find_held_lock+0x36/0x1c0
[  422.020170]  ? handle_mm_fault+0x42a/0xc70
[  422.024417]  ? lock_downgrade+0x900/0x900
[  422.028571]  ? check_preemption_disabled+0x48/0x280
[  422.033596]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  422.038528]  ? kasan_check_read+0x11/0x20
[  422.042691]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  422.047972]  ? rcu_softirq_qs+0x20/0x20
[  422.051948]  ? trace_hardirqs_off_caller+0x310/0x310
[  422.057071]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  422.062624]  ? check_preemption_disabled+0x48/0x280
[  422.067663]  handle_mm_fault+0x54f/0xc70
[  422.071735]  ? __handle_mm_fault+0x5be0/0x5be0
[  422.076350]  ? find_vma+0x34/0x190
[  422.079915]  __do_page_fault+0x5e8/0xe60
[  422.083983]  ? trace_hardirqs_off+0xb8/0x310
[  422.088419]  do_page_fault+0xf2/0x7e0
[  422.092226]  ? vmalloc_sync_all+0x30/0x30
[  422.096380]  ? error_entry+0x70/0xd0
[  422.100109]  ? trace_hardirqs_off_caller+0xbb/0x310
[  422.105132]  ? trace_hardirqs_on_caller+0xc0/0x310
[  422.110075]  ? syscall_return_slowpath+0x5e0/0x5e0
[  422.115011]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  422.119870]  ? trace_hardirqs_on_caller+0x310/0x310
[  422.124895]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  422.130367]  ? prepare_exit_to_usermode+0x291/0x3b0
[  422.135393]  ? page_fault+0x8/0x30
[  422.138947]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  422.143808]  ? page_fault+0x8/0x30
[  422.147359]  page_fault+0x1e/0x30
[  422.150813] RIP: 0033:0x45ddf3
[  422.154018] Code: Bad RIP value.
[  422.157389] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  422.162759] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  422.170040] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  422.177329] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  422.184608] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  422.191884] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  422.199186] warn_alloc_show_mem: 1 callbacks suppressed
[  422.199199] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  422.199201] Mem-Info:
[  422.199232] active_anon:45985 inactive_anon:296 isolated_anon:0
[  422.199232]  active_file:15 inactive_file:8 isolated_file:0
[  422.199232]  unevictable:0 dirty:0 writeback:0 unstable:0
[  422.199232]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  422.199232]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  422.199232]  free:13771 free_pcp:249 free_cma:0
[  422.204572] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  422.204582] Call Trace:
[  422.211961] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  422.214363]  <IRQ>
[  422.247160] 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
[  422.256537]  dump_stack+0x244/0x39d
[  422.259100] lowmem_reserve[]: 0 2818 6321 6321
[  422.287306]  ? dump_stack_print_info.cold.1+0x20/0x20
[  422.289433] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  422.316042]  warn_alloc.cold.116+0xb7/0x1bd
[  422.319663] lowmem_reserve[]: 0 0 3503 3503
[  422.324254]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  422.329429] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  422.356949]  ? lock_downgrade+0x900/0x900
[  422.361270] lowmem_reserve[]: 0 0 0 0
[  422.365607]  ? trace_hardirqs_off+0xb8/0x310
[  422.370429] 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
[  422.400090]  ? trace_hardirqs_off+0xb8/0x310
[  422.404221] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  422.408027]  ? noop_count+0x40/0x40
[  422.412415] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  422.425956]  __alloc_pages_slowpath+0x2651/0x2de0
[  422.430354] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  422.445455]  ? check_usage+0x1aa/0x790
[  422.449064] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  422.464505]  ? warn_alloc+0x120/0x120
[  422.469336] 376 total pagecache pages
[  422.478183]  ? warn_alloc+0x120/0x120
[  422.482065] 0 pages in swap cache
[  422.490659]  ? __bfs+0xb0/0x780
[  422.494447] Swap cache stats: add 0, delete 0, find 0/0
[  422.498249]  ? warn_alloc+0x120/0x120
[  422.502030] Free swap  = 0kB
[  422.505494]  ? print_usage_bug+0xc0/0xc0
[  422.508742] Total swap = 0kB
[  422.508750] 1965979 pages RAM
[  422.514130]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  422.517899] 0 pages HighMem/MovableOnly
[  422.520928]  ? should_fail+0x22d/0xd01
[  422.524952] 342854 pages reserved
[  422.524961] 0 pages cma reserved
[  422.527988]  ? trace_event_raw_event_lock_acquire+0x440/0x440
[  422.531137] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  422.536610]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  422.540680] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  422.544458]  ? __lock_acquire+0x62f/0x4c20
[  422.547918] syz-fuzzer cpuset=/ mems_allowed=0
[  422.551291]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  422.592918]  ? should_fail+0x22d/0xd01
[  422.596838]  ? mark_held_locks+0x130/0x130
[  422.601103]  ? mark_held_locks+0x130/0x130
[  422.605353]  ? print_usage_bug+0xc0/0xc0
[  422.609436]  ? find_held_lock+0x36/0x1c0
[  422.613519]  ? zap_class+0x640/0x640
[  422.617265]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.622820]  ? check_preemption_disabled+0x48/0x280
[  422.627863]  ? __lock_is_held+0xb5/0x140
[  422.631952]  __alloc_pages_nodemask+0xad8/0xea0
[  422.636637]  ? zap_class+0x640/0x640
[  422.640378]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  422.645420]  ? find_held_lock+0x36/0x1c0
[  422.649504]  ? ____cache_alloc_node+0x1c7/0x1e0
[  422.654193]  ? lock_downgrade+0x900/0x900
[  422.658366]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.663933]  cache_grow_begin+0xa5/0x8c0
[  422.668010]  ? do_raw_spin_unlock+0xa7/0x330
[  422.672449]  fallback_alloc+0x204/0x2e0
[  422.676451]  ____cache_alloc_node+0x1c7/0x1e0
[  422.680977]  kmem_cache_alloc_node+0xe3/0x730
[  422.685494]  ? mark_held_locks+0xc7/0x130
[  422.689668]  __alloc_skb+0x119/0x770
[  422.693404]  ? netdev_alloc_frag+0x1f0/0x1f0
[  422.697829]  ? do_raw_spin_trylock+0x270/0x270
[  422.702432]  ? kmem_cache_alloc_trace+0x353/0x750
[  422.707294]  ? queue_work_on+0x12c/0x1e0
[  422.711382]  ? switchdev_port_obj_del+0xe3/0x450
[  422.716153]  ? switchdev_trans_item_enqueue+0x260/0x260
[  422.721531]  ? mod_timer+0x631/0x1560
[  422.725345]  ? wake_up_klogd+0x180/0x180
[  422.729421]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  422.734522]  __br_mdb_notify+0x4ff/0x15d0
[  422.738709]  ? __br_mdb_add+0x7f0/0x7f0
[  422.742711]  ? zap_class+0x640/0x640
[  422.746491]  ? br_multicast_group_expired+0x96/0x610
[  422.751621]  br_mdb_notify+0x310/0x410
[  422.755526]  ? br_mdb_dump+0x27b0/0x27b0
[  422.759605]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.765169]  br_multicast_group_expired+0x1bc/0x610
[  422.770209]  ? br_mdb_free+0x80/0x80
[  422.773952]  call_timer_fn+0x272/0x920
[  422.777854]  ? br_mdb_free+0x80/0x80
[  422.781584]  ? process_timeout+0x40/0x40
[  422.785667]  ? __run_timers+0x7da/0xc70
[  422.789658]  ? _raw_spin_unlock_irq+0x27/0x80
[  422.794170]  ? _raw_spin_unlock_irq+0x27/0x80
[  422.798677]  ? br_mdb_free+0x80/0x80
[  422.802407]  ? lockdep_hardirqs_on+0x296/0x5b0
[  422.807009]  ? trace_hardirqs_on+0xbd/0x310
[  422.811362]  ? kasan_check_read+0x11/0x20
[  422.815520]  ? __run_timers+0x7da/0xc70
[  422.819506]  ? trace_hardirqs_off_caller+0x310/0x310
[  422.824628]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  422.828883]  ? br_mdb_free+0x80/0x80
[  422.832613]  __run_timers+0x7e5/0xc70
[  422.836437]  ? timer_fixup_init+0x70/0x70
[  422.840601]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  422.845629]  ? zap_class+0x640/0x640
[  422.849359]  ? enqueue_hrtimer+0x1a5/0x560
[  422.853607]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  422.858814]  ? find_held_lock+0x36/0x1c0
[  422.862890]  ? zap_class+0x640/0x640
[  422.866619]  ? pvclock_read_flags+0x160/0x160
[  422.871132]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.876697]  ? check_preemption_disabled+0x48/0x280
[  422.881741]  ? __lock_is_held+0xb5/0x140
[  422.885818]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.891371]  ? check_preemption_disabled+0x48/0x280
[  422.896404]  run_timer_softirq+0x52/0xb0
[  422.900478]  ? rcu_read_lock_sched_held+0x14f/0x180
[  422.905510]  __do_softirq+0x308/0xb7e
[  422.909327]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  422.913836]  ? lock_downgrade+0x900/0x900
[  422.918007]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  422.923131]  ? pvclock_read_flags+0x160/0x160
[  422.927642]  ? lapic_next_event+0x5a/0x90
[  422.931809]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.937364]  ? kvm_clock_read+0x18/0x30
[  422.941352]  ? kvm_sched_clock_read+0x9/0x20
[  422.945775]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.951330]  ? check_preemption_disabled+0x48/0x280
[  422.956370]  irq_exit+0x17f/0x1c0
[  422.959839]  smp_apic_timer_interrupt+0x1cb/0x760
[  422.964694]  ? smp_reschedule_interrupt+0x109/0x650
[  422.969725]  ? smp_call_function_single_interrupt+0x650/0x650
[  422.975630]  ? interrupt_entry+0xb5/0xc0
[  422.979714]  ? trace_hardirqs_off_caller+0xbb/0x310
[  422.984744]  ? trace_hardirqs_off_caller+0xbb/0x310
[  422.989783]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  422.994642]  ? trace_hardirqs_on_caller+0x310/0x310
[  422.999673]  ? trace_hardirqs_on_caller+0x310/0x310
[  423.004701]  ? task_prio+0x50/0x50
[  423.008267]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.013822]  ? check_preemption_disabled+0x48/0x280
[  423.018863]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  423.023732]  apic_timer_interrupt+0xf/0x20
[  423.027969]  </IRQ>
[  423.030218] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  423.035161] 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 42 f3
[  423.054093] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  423.061820] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  423.069109] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  423.076395] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  423.083678] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  423.090959] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  423.098292]  skb_clone+0x1bb/0x500
[  423.101854]  ? skb_split+0x11e0/0x11e0
[  423.105756]  ? check_preemption_disabled+0x48/0x280
[  423.110804]  ? __this_cpu_preempt_check+0x1c/0x20
[  423.115665]  ? __bpf_redirect+0x55b/0xb60
[  423.119826]  ? __switch_to_asm+0x34/0x70
[  423.123901]  ? __switch_to_asm+0x40/0x70
[  423.127984]  bpf_clone_redirect+0xb9/0x490
[  423.132252]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  423.137290]  ? __sched_text_start+0x8/0x8
[  423.141468]  ? find_held_lock+0x36/0x1c0
[  423.145551]  ? lock_acquire+0x1ed/0x520
[  423.149536]  ? bpf_test_run+0x3cb/0x780
[  423.153522]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.159084]  ? check_preemption_disabled+0x48/0x280
[  423.164123]  ? kasan_check_read+0x11/0x20
[  423.168287]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  423.173592]  ? rcu_softirq_qs+0x20/0x20
[  423.177583]  ? preempt_schedule+0x4d/0x60
[  423.182096]  ? ___preempt_schedule+0x16/0x18
[  423.186526]  ? bpf_test_run+0x25d/0x780
[  423.190523]  ? netlink_diag_dump+0x2a0/0x2a0
[  423.194950]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  423.200502]  ? bpf_test_init.isra.10+0x70/0x100
[  423.205188]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  423.209966]  ? bpf_test_finish.isra.9+0x260/0x260
[  423.214818]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  423.220371]  ? fput+0x130/0x1a0
[  423.223665]  ? __bpf_prog_get+0x9b/0x290
[  423.227739]  ? bpf_test_finish.isra.9+0x260/0x260
[  423.232603]  ? bpf_prog_test_run+0x130/0x1a0
[  423.237028]  ? __x64_sys_bpf+0x3db/0x520
[  423.241104]  ? bpf_prog_get+0x20/0x20
[  423.244939]  ? do_syscall_64+0x1b9/0x820
[  423.249013]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  423.254413]  ? syscall_return_slowpath+0x5e0/0x5e0
[  423.259351]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  423.264207]  ? trace_hardirqs_on_caller+0x310/0x310
[  423.269238]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  423.274271]  ? prepare_exit_to_usermode+0x291/0x3b0
[  423.279306]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  423.284169]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  423.289566] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  423.290211] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  423.296591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  423.296601] Call Trace:
[  423.307092] syz-executor0 cpuset=syz0 mems_allowed=0
[  423.316451]  <IRQ>
[  423.326279]  dump_stack+0x244/0x39d
[  423.329921]  ? dump_stack_print_info.cold.1+0x20/0x20
[  423.335134]  warn_alloc.cold.116+0xb7/0x1bd
[  423.339464]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  423.344319]  ? lock_downgrade+0x900/0x900
[  423.348491]  ? trace_hardirqs_off+0xb8/0x310
[  423.352914]  ? trace_hardirqs_off+0xb8/0x310
[  423.357342]  __alloc_pages_slowpath+0x2651/0x2de0
[  423.362221]  ? warn_alloc+0x120/0x120
[  423.366027]  ? print_usage_bug+0xc0/0xc0
[  423.370106]  ? warn_alloc+0x120/0x120
[  423.374254]  ? warn_alloc+0x120/0x120
[  423.378068]  ? print_usage_bug+0xc0/0xc0
[  423.382139]  ? kvm_clock_read+0x18/0x30
[  423.386117]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  423.391145]  ? print_usage_bug+0xc0/0xc0
[  423.395213]  ? __lock_acquire+0x62f/0x4c20
[  423.399459]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  423.405010]  ? should_fail+0x22d/0xd01
[  423.408917]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  423.414206]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  423.419318]  ? __lock_acquire+0x62f/0x4c20
[  423.423575]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  423.428686]  ? __lock_acquire+0x62f/0x4c20
[  423.432927]  ? should_fail+0x22d/0xd01
[  423.436821]  ? rcu_irq_exit+0x1a2/0x390
[  423.440811]  ? mark_held_locks+0x130/0x130
[  423.445068]  ? mark_held_locks+0x130/0x130
[  423.449318]  ? mark_held_locks+0xc7/0x130
[  423.453476]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  423.458525]  ? zap_class+0x640/0x640
[  423.462253]  ? print_usage_bug+0xc0/0xc0
[  423.466323]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.471871]  ? check_preemption_disabled+0x48/0x280
[  423.476904]  ? __lock_is_held+0xb5/0x140
[  423.480978]  __alloc_pages_nodemask+0xad8/0xea0
[  423.485662]  ? zap_class+0x640/0x640
[  423.489385]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  423.494431]  ? find_held_lock+0x36/0x1c0
[  423.498508]  ? ____cache_alloc_node+0x1c7/0x1e0
[  423.503190]  ? lock_downgrade+0x900/0x900
[  423.507351]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.512907]  cache_grow_begin+0xa5/0x8c0
[  423.516973]  ? do_raw_spin_unlock+0xa7/0x330
[  423.521401]  fallback_alloc+0x204/0x2e0
[  423.525396]  ____cache_alloc_node+0x1c7/0x1e0
[  423.529908]  kmem_cache_alloc_node+0xe3/0x730
[  423.534417]  ? ipv6_get_ifaddr+0x42e/0x620
[  423.538672]  __alloc_skb+0x119/0x770
[  423.542395]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  423.547719]  ? netdev_alloc_frag+0x1f0/0x1f0
[  423.552143]  ? lock_downgrade+0x900/0x900
[  423.556310]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.561863]  ? refcount_sub_and_test_checked+0x203/0x310
[  423.567347]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  423.572813]  ? addrconf_rs_timer+0x690/0x690
[  423.577254]  ndisc_alloc_skb+0x144/0x340
[  423.581331]  ndisc_send_rs+0x331/0x6e0
[  423.585231]  addrconf_rs_timer+0x314/0x690
[  423.589481]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  423.593737]  call_timer_fn+0x272/0x920
[  423.597629]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  423.601871]  ? process_timeout+0x40/0x40
[  423.605948]  ? mark_held_locks+0xc7/0x130
[  423.610109]  ? _raw_spin_unlock_irq+0x27/0x80
[  423.614608]  ? _raw_spin_unlock_irq+0x27/0x80
[  423.619108]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  423.623351]  ? lockdep_hardirqs_on+0x296/0x5b0
[  423.627940]  ? trace_hardirqs_on+0xbd/0x310
[  423.632269]  ? kasan_check_read+0x11/0x20
[  423.636428]  ? __run_timers+0x7da/0xc70
[  423.640416]  ? trace_hardirqs_off_caller+0x310/0x310
[  423.645536]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  423.649781]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  423.654020]  __run_timers+0x7e5/0xc70
[  423.657847]  ? timer_fixup_init+0x70/0x70
[  423.662014]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  423.667061]  ? zap_class+0x640/0x640
[  423.670795]  ? print_usage_bug+0xc0/0xc0
[  423.674869]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  423.680083]  ? find_held_lock+0x36/0x1c0
[  423.684162]  ? zap_class+0x640/0x640
[  423.687886]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.693438]  ? check_preemption_disabled+0x48/0x280
[  423.698471]  ? __lock_is_held+0xb5/0x140
[  423.702540]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.708094]  ? check_preemption_disabled+0x48/0x280
[  423.713122]  run_timer_softirq+0x52/0xb0
[  423.717192]  ? rcu_read_lock_sched_held+0x14f/0x180
[  423.722220]  __do_softirq+0x308/0xb7e
[  423.726034]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  423.730539]  ? lock_downgrade+0x900/0x900
[  423.734700]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  423.739824]  ? pvclock_read_flags+0x160/0x160
[  423.744327]  ? lapic_next_event+0x5a/0x90
[  423.748483]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.754037]  ? kvm_clock_read+0x18/0x30
[  423.758023]  ? kvm_sched_clock_read+0x9/0x20
[  423.762453]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  423.768038]  ? check_preemption_disabled+0x48/0x280
[  423.773086]  irq_exit+0x17f/0x1c0
[  423.776548]  smp_apic_timer_interrupt+0x1cb/0x760
[  423.781395]  ? smp_reschedule_interrupt+0x109/0x650
[  423.786426]  ? smp_call_function_single_interrupt+0x650/0x650
[  423.792319]  ? interrupt_entry+0xb5/0xc0
[  423.796390]  ? trace_hardirqs_off_caller+0xbb/0x310
[  423.801419]  ? trace_hardirqs_off_caller+0xbb/0x310
[  423.806446]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  423.811300]  ? trace_hardirqs_on_caller+0x310/0x310
[  423.816321]  ? trace_hardirqs_on_caller+0x310/0x310
[  423.821360]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  423.826221]  apic_timer_interrupt+0xf/0x20
[  423.830464]  </IRQ>
[  423.832712] RIP: 0010:dump_stack+0x358/0x39d
[  423.837124] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  423.856041] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  423.863774] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  423.871078] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  423.878363] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  423.885643] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  423.892922] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  423.900232]  ? dump_stack+0x34f/0x39d
[  423.904063]  ? dump_stack_print_info.cold.1+0x20/0x20
[  423.909271]  ? mark_held_locks+0x130/0x130
[  423.913509]  ? mark_held_locks+0x130/0x130
[  423.917759]  dump_header+0x27b/0xf72
[  423.921495]  ? pagefault_out_of_memory+0x197/0x197
[  423.926448]  ? __lock_acquire+0x62f/0x4c20
[  423.930690]  ? percpu_ref_get_many+0x240/0x240
[  423.935287]  ? print_usage_bug+0xc0/0xc0
[  423.939357]  ? zap_class+0x640/0x640
[  423.943086]  ? print_usage_bug+0xc0/0xc0
[  423.947153]  ? print_usage_bug+0xc0/0xc0
[  423.951220]  ? zap_class+0x640/0x640
[  423.954945]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.960511]  ? find_held_lock+0x36/0x1c0
[  423.964594]  ? mark_held_locks+0xc7/0x130
[  423.968748]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  423.973855]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  423.978964]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  423.983552]  ? trace_hardirqs_on+0xbd/0x310
[  423.987881]  ? kasan_check_read+0x11/0x20
[  423.992039]  ? ___ratelimit+0x3b4/0x672
[  423.996031]  ? trace_hardirqs_off_caller+0x310/0x310
[  424.001152]  ? trace_hardirqs_on+0x310/0x310
[  424.005570]  ? lock_downgrade+0x900/0x900
[  424.009732]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  424.014847]  ? ___ratelimit+0x3b9/0x672
[  424.018830]  ? idr_get_free+0xf70/0xf70
[  424.022811]  ? find_held_lock+0x36/0x1c0
[  424.026884]  oom_kill_process.cold.27+0x10/0x903
[  424.031649]  ? zap_class+0x640/0x640
[  424.035367]  ? check_preemption_disabled+0x48/0x280
[  424.040393]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  424.045348]  ? kasan_check_read+0x11/0x20
[  424.049501]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  424.054793]  ? oom_evaluate_task+0x540/0x540
[  424.059210]  ? find_held_lock+0x36/0x1c0
[  424.063289]  ? out_of_memory+0x974/0x1430
[  424.067455]  ? lock_downgrade+0x900/0x900
[  424.071606]  ? check_preemption_disabled+0x48/0x280
[  424.076631]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  424.081563]  ? kasan_check_read+0x11/0x20
[  424.085718]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  424.091003]  ? rcu_softirq_qs+0x20/0x20
[  424.094986]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  424.100547]  ? oom_evaluate_task+0x302/0x540
[  424.104968]  out_of_memory+0xa84/0x1430
[  424.108954]  ? oom_killer_disable+0x3a0/0x3a0
[  424.113468]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  424.118418]  ? __ww_mutex_check_waiters+0x160/0x160
[  424.123458]  __alloc_pages_slowpath+0x232c/0x2de0
[  424.128338]  ? warn_alloc+0x120/0x120
[  424.132144]  ? mark_held_locks+0x130/0x130
[  424.136387]  ? find_get_entry+0xaae/0x1120
[  424.140636]  ? filemap_map_pages+0x1a20/0x1a20
[  424.145227]  ? zap_class+0x640/0x640
[  424.148956]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.154509]  ? check_preemption_disabled+0x48/0x280
[  424.159552]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  424.165102]  ? should_fail+0x22d/0xd01
[  424.169001]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  424.174116]  ? zap_class+0x640/0x640
[  424.177870]  ? __lock_is_held+0xb5/0x140
[  424.182075]  ? mark_held_locks+0x130/0x130
[  424.186318]  ? lock_release+0xa00/0xa00
[  424.190298]  ? perf_trace_sched_process_exec+0x860/0x860
[  424.195754]  ? xa_load+0x2ba/0x460
[  424.199301]  ? lock_downgrade+0x900/0x900
[  424.203465]  ? __might_sleep+0x95/0x190
[  424.207451]  __alloc_pages_nodemask+0xad8/0xea0
[  424.212135]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  424.217160]  ? __page_cache_alloc+0x191/0x5c0
[  424.221660]  ? xa_load+0x2e1/0x460
[  424.225209]  ? xa_clear_mark+0x40/0x40
[  424.229107]  ? zap_class+0x640/0x640
[  424.232833]  ? zap_class+0x640/0x640
[  424.236555]  ? zap_class+0x640/0x640
[  424.240271]  ? __do_page_cache_readahead+0x663/0x810
[  424.245391]  ? find_held_lock+0x36/0x1c0
[  424.249478]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  424.255034]  alloc_pages_current+0x173/0x350
[  424.259463]  __page_cache_alloc+0x38c/0x5c0
[  424.263791]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  424.268727]  ? kasan_check_read+0x11/0x20
[  424.272880]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  424.278168]  ? generic_perform_write+0x6a0/0x6a0
[  424.282932]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  424.288481]  ? check_preemption_disabled+0x48/0x280
[  424.293511]  filemap_fault+0x1595/0x25f0
[  424.297590]  ? __lock_page_or_retry+0xa00/0xa00
[  424.302276]  ? mark_held_locks+0x130/0x130
[  424.306523]  ? filemap_map_pages+0xd6b/0x1a20
[  424.311130]  ? lock_downgrade+0x900/0x900
[  424.315282]  ? check_preemption_disabled+0x48/0x280
[  424.320304]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  424.325245]  ? kasan_check_read+0x11/0x20
[  424.329397]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  424.334684]  ? rcu_softirq_qs+0x20/0x20
[  424.338675]  ? filemap_map_pages+0xd92/0x1a20
[  424.343193]  ? find_get_entries_tag+0x1400/0x1400
[  424.348055]  ? debug_object_destroy+0x2b0/0x2b0
[  424.352738]  ? lock_pi_update_atomic+0x150/0x150
[  424.357503]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.363071]  ? lock_acquire+0x1ed/0x520
[  424.367061]  ? ext4_filemap_fault+0x7a/0xad
[  424.371396]  ? lock_release+0xa00/0xa00
[  424.375384]  ? perf_trace_sched_process_exec+0x860/0x860
[  424.380860]  ? print_usage_bug+0xc0/0xc0
[  424.384928]  ? print_usage_bug+0xc0/0xc0
[  424.389005]  ? down_read+0x8d/0x120
[  424.392643]  ? ext4_filemap_fault+0x7a/0xad
[  424.396976]  ? __down_interruptible+0x700/0x700
[  424.401663]  ext4_filemap_fault+0x82/0xad
[  424.405820]  __do_fault+0x100/0x6b0
[  424.409455]  ? find_held_lock+0x36/0x1c0
[  424.413526]  ? pmd_devmap_trans_unstable+0x220/0x220
[  424.418647]  ? mark_held_locks+0x130/0x130
[  424.422887]  ? mark_held_locks+0x130/0x130
[  424.427135]  ? debug_smp_processor_id+0x1c/0x20
[  424.431809]  ? perf_trace_lock+0x14d/0x7a0
[  424.436063]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  424.441613]  __handle_mm_fault+0x3ea0/0x5be0
[  424.446038]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  424.450896]  ? lock_is_held_type+0x210/0x210
[  424.455314]  ? __switch_to_asm+0x34/0x70
[  424.459376]  ? __switch_to_asm+0x34/0x70
[  424.463461]  ? zap_class+0x640/0x640
[  424.467191]  ? zap_class+0x640/0x640
[  424.470911]  ? __x64_sys_futex+0x53e/0x6a0
[  424.475156]  ? find_held_lock+0x36/0x1c0
[  424.479234]  ? handle_mm_fault+0x42a/0xc70
[  424.483476]  ? lock_downgrade+0x900/0x900
[  424.487637]  ? check_preemption_disabled+0x48/0x280
[  424.492669]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  424.497604]  ? kasan_check_read+0x11/0x20
[  424.501763]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  424.507061]  ? rcu_softirq_qs+0x20/0x20
[  424.511045]  ? trace_hardirqs_off_caller+0x310/0x310
[  424.516177]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  424.521721]  ? check_preemption_disabled+0x48/0x280
[  424.526772]  handle_mm_fault+0x54f/0xc70
[  424.530854]  ? __handle_mm_fault+0x5be0/0x5be0
[  424.535465]  ? find_vma+0x34/0x190
[  424.539019]  __do_page_fault+0x5e8/0xe60
[  424.543093]  ? trace_hardirqs_off+0xb8/0x310
[  424.547522]  do_page_fault+0xf2/0x7e0
[  424.551344]  ? vmalloc_sync_all+0x30/0x30
[  424.555511]  ? error_entry+0x70/0xd0
[  424.559245]  ? trace_hardirqs_off_caller+0xbb/0x310
[  424.564284]  ? trace_hardirqs_on_caller+0xc0/0x310
[  424.569244]  ? syscall_return_slowpath+0x5e0/0x5e0
[  424.574201]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  424.579078]  ? trace_hardirqs_on_caller+0x310/0x310
[  424.584124]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  424.589593]  ? prepare_exit_to_usermode+0x291/0x3b0
[  424.594624]  ? page_fault+0x8/0x30
[  424.598175]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  424.603032]  ? page_fault+0x8/0x30
[  424.606588]  page_fault+0x1e/0x30
[  424.610044] RIP: 0033:0x45ddf3
[  424.613263] Code: Bad RIP value.
[  424.616631] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  424.622012] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  424.629297] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  424.636593] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  424.643877] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  424.651168] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  424.658483] warn_alloc_show_mem: 1 callbacks suppressed
[  424.658496] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  424.658498] Mem-Info:
[  424.658530] active_anon:45985 inactive_anon:296 isolated_anon:0
[  424.658530]  active_file:15 inactive_file:8 isolated_file:0
[  424.658530]  unevictable:0 dirty:0 writeback:0 unstable:0
[  424.658530]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  424.658530]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  424.658530]  free:13771 free_pcp:249 free_cma:0
[  424.663881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  424.663894] Call Trace:
[  424.671285] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  424.673700]  <IRQ>
[  424.706495] 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
[  424.715873]  dump_stack+0x244/0x39d
[  424.718441] lowmem_reserve[]: 0 2818 6321 6321
[  424.746134]  ? dump_stack_print_info.cold.1+0x20/0x20
[  424.748261] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  424.774386]  warn_alloc.cold.116+0xb7/0x1bd
[  424.778184] lowmem_reserve[]: 0 0 3503 3503
[  424.782776]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  424.787942] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  424.815459]  ? lock_downgrade+0x900/0x900
[  424.819760] lowmem_reserve[]: 0 0 0 0
[  424.824127]  ? trace_hardirqs_off+0xb8/0x310
[  424.828946] 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
[  424.857941]  ? trace_hardirqs_off+0xb8/0x310
[  424.862077] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  424.865884]  __alloc_pages_slowpath+0x2651/0x2de0
[  424.870254] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  424.883816]  ? warn_alloc+0x120/0x120
[  424.888194] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  424.903285]  ? warn_alloc+0x120/0x120
[  424.908114] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  424.923555]  ? warn_alloc+0x120/0x120
[  424.927337] 376 total pagecache pages
[  424.936182]  ? print_usage_bug+0xc0/0xc0
[  424.939970] 0 pages in swap cache
[  424.948554]  ? print_usage_bug+0xc0/0xc0
[  424.952338] Swap cache stats: add 0, delete 0, find 0/0
[  424.956135]  ? check_usage+0x1aa/0x790
[  424.960167] Free swap  = 0kB
[  424.963622]  ? mark_held_locks+0x130/0x130
[  424.967656] Total swap = 0kB
[  424.973024]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  424.976880] 1965979 pages RAM
[  424.979903]  ? should_fail+0x22d/0xd01
[  424.984107] 0 pages HighMem/MovableOnly
[  424.984116] 342854 pages reserved
[  424.987134]  ? trace_event_raw_event_lock_acquire+0x440/0x440
[  424.992647] 0 pages cma reserved
[  424.995762]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  424.999702] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  425.003601]  ? __lock_acquire+0x62f/0x4c20
[  425.007101] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  425.012929]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  425.016270] syz-fuzzer cpuset=/ mems_allowed=0
[  425.021379]  ? should_fail+0x22d/0xd01
[  425.055929]  ? mark_held_locks+0x130/0x130
[  425.060183]  ? mark_held_locks+0x130/0x130
[  425.064436]  ? print_usage_bug+0xc0/0xc0
[  425.068524]  ? find_held_lock+0x36/0x1c0
[  425.072606]  ? zap_class+0x640/0x640
[  425.076350]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.081917]  ? check_preemption_disabled+0x48/0x280
[  425.086973]  ? __lock_is_held+0xb5/0x140
[  425.091061]  __alloc_pages_nodemask+0xad8/0xea0
[  425.095747]  ? zap_class+0x640/0x640
[  425.099479]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  425.104519]  ? find_held_lock+0x36/0x1c0
[  425.108596]  ? ____cache_alloc_node+0x1c7/0x1e0
[  425.113279]  ? lock_downgrade+0x900/0x900
[  425.117451]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.123018]  cache_grow_begin+0xa5/0x8c0
[  425.127111]  ? do_raw_spin_unlock+0xa7/0x330
[  425.131548]  fallback_alloc+0x204/0x2e0
[  425.135547]  ____cache_alloc_node+0x1c7/0x1e0
[  425.140075]  kmem_cache_alloc_node+0xe3/0x730
[  425.144587]  ? mark_held_locks+0xc7/0x130
[  425.148758]  __alloc_skb+0x119/0x770
[  425.152498]  ? netdev_alloc_frag+0x1f0/0x1f0
[  425.156923]  ? do_raw_spin_trylock+0x270/0x270
[  425.161518]  ? kmem_cache_alloc_trace+0x353/0x750
[  425.166376]  ? queue_work_on+0x12c/0x1e0
[  425.170450]  ? switchdev_port_obj_del+0xe3/0x450
[  425.175218]  ? switchdev_trans_item_enqueue+0x260/0x260
[  425.180920]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  425.185964]  __br_mdb_notify+0x4ff/0x15d0
[  425.190146]  ? __br_mdb_add+0x7f0/0x7f0
[  425.194160]  ? zap_class+0x640/0x640
[  425.197923]  ? br_multicast_group_expired+0x96/0x610
[  425.203067]  ? lock_downgrade+0x900/0x900
[  425.207249]  br_mdb_notify+0x310/0x410
[  425.211164]  ? br_mdb_dump+0x27b0/0x27b0
[  425.215252]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.220820]  br_multicast_group_expired+0x1bc/0x610
[  425.225863]  ? br_mdb_free+0x80/0x80
[  425.229604]  call_timer_fn+0x272/0x920
[  425.233502]  ? br_mdb_free+0x80/0x80
[  425.237223]  ? process_timeout+0x40/0x40
[  425.241304]  ? __run_timers+0x7da/0xc70
[  425.245290]  ? _raw_spin_unlock_irq+0x27/0x80
[  425.249788]  ? _raw_spin_unlock_irq+0x27/0x80
[  425.254294]  ? br_mdb_free+0x80/0x80
[  425.258013]  ? lockdep_hardirqs_on+0x296/0x5b0
[  425.262605]  ? trace_hardirqs_on+0xbd/0x310
[  425.266937]  ? kasan_check_read+0x11/0x20
[  425.271093]  ? __run_timers+0x7da/0xc70
[  425.275079]  ? trace_hardirqs_off_caller+0x310/0x310
[  425.280196]  ? br_mdb_free+0x80/0x80
[  425.283927]  ? br_mdb_free+0x80/0x80
[  425.287642]  __run_timers+0x7e5/0xc70
[  425.291461]  ? timer_fixup_init+0x70/0x70
[  425.295620]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  425.300649]  ? zap_class+0x640/0x640
[  425.304378]  ? enqueue_hrtimer+0x1a5/0x560
[  425.308621]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  425.313831]  ? find_held_lock+0x36/0x1c0
[  425.317906]  ? zap_class+0x640/0x640
[  425.321638]  ? pvclock_read_flags+0x160/0x160
[  425.326145]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.331690]  ? check_preemption_disabled+0x48/0x280
[  425.336725]  ? __lock_is_held+0xb5/0x140
[  425.340792]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.346339]  ? check_preemption_disabled+0x48/0x280
[  425.351373]  run_timer_softirq+0x52/0xb0
[  425.355441]  ? rcu_read_lock_sched_held+0x14f/0x180
[  425.360472]  __do_softirq+0x308/0xb7e
[  425.364285]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  425.368786]  ? lock_downgrade+0x900/0x900
[  425.372952]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  425.378086]  ? pvclock_read_flags+0x160/0x160
[  425.382606]  ? lapic_next_event+0x5a/0x90
[  425.386765]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.392312]  ? kvm_clock_read+0x18/0x30
[  425.396305]  ? kvm_sched_clock_read+0x9/0x20
[  425.400725]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.406272]  ? check_preemption_disabled+0x48/0x280
[  425.411316]  irq_exit+0x17f/0x1c0
[  425.414779]  smp_apic_timer_interrupt+0x1cb/0x760
[  425.419626]  ? smp_reschedule_interrupt+0x109/0x650
[  425.424651]  ? smp_call_function_single_interrupt+0x650/0x650
[  425.430540]  ? interrupt_entry+0xb5/0xc0
[  425.434611]  ? trace_hardirqs_off_caller+0xbb/0x310
[  425.439636]  ? trace_hardirqs_off_caller+0xbb/0x310
[  425.444662]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  425.449515]  ? trace_hardirqs_on_caller+0x310/0x310
[  425.454541]  ? trace_hardirqs_on_caller+0x310/0x310
[  425.459570]  ? task_prio+0x50/0x50
[  425.463132]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.468686]  ? check_preemption_disabled+0x48/0x280
[  425.473719]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  425.478584]  apic_timer_interrupt+0xf/0x20
[  425.482819]  </IRQ>
[  425.485072] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  425.490018] 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 42 f3
[  425.508943] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  425.516685] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  425.523971] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  425.531257] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  425.538541] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  425.545826] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  425.553162]  skb_clone+0x1bb/0x500
[  425.556726]  ? skb_split+0x11e0/0x11e0
[  425.560633]  ? check_preemption_disabled+0x48/0x280
[  425.565685]  ? __this_cpu_preempt_check+0x1c/0x20
[  425.570553]  ? __bpf_redirect+0x55b/0xb60
[  425.574712]  ? __switch_to_asm+0x34/0x70
[  425.578781]  ? __switch_to_asm+0x40/0x70
[  425.582878]  bpf_clone_redirect+0xb9/0x490
[  425.587142]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  425.592189]  ? __sched_text_start+0x8/0x8
[  425.596364]  ? find_held_lock+0x36/0x1c0
[  425.600446]  ? lock_acquire+0x1ed/0x520
[  425.604437]  ? bpf_test_run+0x3cb/0x780
[  425.608428]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.613984]  ? check_preemption_disabled+0x48/0x280
[  425.619020]  ? kasan_check_read+0x11/0x20
[  425.623190]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  425.628483]  ? rcu_softirq_qs+0x20/0x20
[  425.632477]  ? preempt_schedule+0x4d/0x60
[  425.636636]  ? ___preempt_schedule+0x16/0x18
[  425.641076]  ? bpf_test_run+0x25d/0x780
[  425.645082]  ? netlink_diag_dump+0x2a0/0x2a0
[  425.649509]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  425.655071]  ? bpf_test_init.isra.10+0x70/0x100
[  425.659763]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  425.664559]  ? bpf_test_finish.isra.9+0x260/0x260
[  425.669415]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  425.674971]  ? fput+0x130/0x1a0
[  425.678263]  ? __bpf_prog_get+0x9b/0x290
[  425.682341]  ? bpf_test_finish.isra.9+0x260/0x260
[  425.687209]  ? bpf_prog_test_run+0x130/0x1a0
[  425.691632]  ? __x64_sys_bpf+0x3db/0x520
[  425.695727]  ? bpf_prog_get+0x20/0x20
[  425.699563]  ? do_syscall_64+0x1b9/0x820
[  425.703632]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  425.709010]  ? syscall_return_slowpath+0x5e0/0x5e0
[  425.713955]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  425.718811]  ? trace_hardirqs_on_caller+0x310/0x310
[  425.723840]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  425.728886]  ? prepare_exit_to_usermode+0x291/0x3b0
[  425.733929]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  425.738795]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  425.744188] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  425.744340] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  425.751213] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  425.751223] Call Trace:
[  425.761712] syz-executor0 cpuset=syz0 mems_allowed=0
[  425.771089]  <IRQ>
[  425.780925]  dump_stack+0x244/0x39d
[  425.784566]  ? dump_stack_print_info.cold.1+0x20/0x20
[  425.789781]  warn_alloc.cold.116+0xb7/0x1bd
[  425.794114]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  425.798971]  ? lock_downgrade+0x900/0x900
[  425.803133]  ? trace_hardirqs_off+0xb8/0x310
[  425.807557]  ? trace_hardirqs_off+0xb8/0x310
[  425.811987]  __alloc_pages_slowpath+0x2651/0x2de0
[  425.816870]  ? warn_alloc+0x120/0x120
[  425.820699]  ? print_usage_bug+0xc0/0xc0
[  425.824765]  ? warn_alloc+0x120/0x120
[  425.828581]  ? warn_alloc+0x120/0x120
[  425.832403]  ? print_usage_bug+0xc0/0xc0
[  425.836480]  ? print_usage_bug+0xc0/0xc0
[  425.840546]  ? __lock_acquire+0x62f/0x4c20
[  425.844791]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  425.850335]  ? should_fail+0x22d/0xd01
[  425.854230]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  425.859338]  ? __lock_acquire+0x62f/0x4c20
[  425.863591]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  425.868697]  ? __lock_acquire+0x62f/0x4c20
[  425.872937]  ? should_fail+0x22d/0xd01
[  425.876830]  ? find_held_lock+0x36/0x1c0
[  425.880901]  ? mark_held_locks+0x130/0x130
[  425.885145]  ? mark_held_locks+0x130/0x130
[  425.889384]  ? zap_class+0x640/0x640
[  425.893107]  ? zap_class+0x640/0x640
[  425.896832]  ? print_usage_bug+0xc0/0xc0
[  425.900914]  ? do_raw_spin_unlock+0xa7/0x330
[  425.905326]  ? zap_class+0x640/0x640
[  425.909043]  ? print_usage_bug+0xc0/0xc0
[  425.913120]  ? wq_watchdog_touch+0x9c/0xfe
[  425.917365]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.922911]  ? check_preemption_disabled+0x48/0x280
[  425.927947]  ? __lock_is_held+0xb5/0x140
[  425.932022]  __alloc_pages_nodemask+0xad8/0xea0
[  425.936705]  ? zap_class+0x640/0x640
[  425.940453]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  425.945491]  ? find_held_lock+0x36/0x1c0
[  425.949585]  ? ____cache_alloc_node+0x1c7/0x1e0
[  425.954268]  ? lock_downgrade+0x900/0x900
[  425.958440]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.963998]  cache_grow_begin+0xa5/0x8c0
[  425.968074]  ? do_raw_spin_unlock+0xa7/0x330
[  425.972498]  fallback_alloc+0x204/0x2e0
[  425.976484]  ____cache_alloc_node+0x1c7/0x1e0
[  425.980993]  kmem_cache_alloc_node+0xe3/0x730
[  425.985497]  ? ipv6_get_ifaddr+0x42e/0x620
[  425.989779]  __alloc_skb+0x119/0x770
[  425.993541]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  425.998849]  ? netdev_alloc_frag+0x1f0/0x1f0
[  426.003275]  ? lock_downgrade+0x900/0x900
[  426.007449]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.013001]  ? refcount_sub_and_test_checked+0x203/0x310
[  426.018473]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  426.023942]  ? addrconf_rs_timer+0x690/0x690
[  426.028367]  ndisc_alloc_skb+0x144/0x340
[  426.032443]  ndisc_send_rs+0x331/0x6e0
[  426.036341]  addrconf_rs_timer+0x314/0x690
[  426.040586]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  426.044836]  call_timer_fn+0x272/0x920
[  426.048728]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  426.052971]  ? process_timeout+0x40/0x40
[  426.057045]  ? mark_held_locks+0xc7/0x130
[  426.061212]  ? _raw_spin_unlock_irq+0x27/0x80
[  426.065721]  ? _raw_spin_unlock_irq+0x27/0x80
[  426.070223]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  426.074470]  ? lockdep_hardirqs_on+0x296/0x5b0
[  426.079065]  ? trace_hardirqs_on+0xbd/0x310
[  426.083395]  ? kasan_check_read+0x11/0x20
[  426.087555]  ? __run_timers+0x7da/0xc70
[  426.091534]  ? trace_hardirqs_off_caller+0x310/0x310
[  426.096656]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  426.100895]  __run_timers+0x7e5/0xc70
[  426.104711]  ? timer_fixup_init+0x70/0x70
[  426.108870]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  426.113894]  ? zap_class+0x640/0x640
[  426.117619]  ? print_usage_bug+0xc0/0xc0
[  426.121685]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  426.126885]  ? find_held_lock+0x36/0x1c0
[  426.130955]  ? zap_class+0x640/0x640
[  426.134676]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.140221]  ? check_preemption_disabled+0x48/0x280
[  426.145255]  ? __lock_is_held+0xb5/0x140
[  426.149324]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.154875]  ? check_preemption_disabled+0x48/0x280
[  426.159902]  run_timer_softirq+0x52/0xb0
[  426.163972]  ? rcu_read_lock_sched_held+0x14f/0x180
[  426.169000]  __do_softirq+0x308/0xb7e
[  426.172810]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  426.177309]  ? lock_downgrade+0x900/0x900
[  426.181470]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  426.186587]  ? pvclock_read_flags+0x160/0x160
[  426.191094]  ? lapic_next_event+0x5a/0x90
[  426.195249]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.200801]  ? kvm_clock_read+0x18/0x30
[  426.204777]  ? kvm_sched_clock_read+0x9/0x20
[  426.209196]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  426.214743]  ? check_preemption_disabled+0x48/0x280
[  426.219774]  irq_exit+0x17f/0x1c0
[  426.223239]  smp_apic_timer_interrupt+0x1cb/0x760
[  426.228135]  ? smp_reschedule_interrupt+0x109/0x650
[  426.233162]  ? smp_call_function_single_interrupt+0x650/0x650
[  426.239072]  ? interrupt_entry+0xb5/0xc0
[  426.243140]  ? trace_hardirqs_off_caller+0xbb/0x310
[  426.248161]  ? trace_hardirqs_off_caller+0xbb/0x310
[  426.253181]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  426.258029]  ? trace_hardirqs_on_caller+0x310/0x310
[  426.263067]  ? trace_hardirqs_on_caller+0x310/0x310
[  426.268105]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  426.272965]  apic_timer_interrupt+0xf/0x20
[  426.277213]  </IRQ>
[  426.279473] RIP: 0010:dump_stack+0x358/0x39d
[  426.283885] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  426.302796] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  426.310656] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  426.317928] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  426.325207] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  426.332490] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  426.339770] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  426.347096]  ? dump_stack+0x34f/0x39d
[  426.350921]  ? dump_stack_print_info.cold.1+0x20/0x20
[  426.356122]  ? mark_held_locks+0x130/0x130
[  426.360363]  ? mark_held_locks+0x130/0x130
[  426.364611]  dump_header+0x27b/0xf72
[  426.368344]  ? pagefault_out_of_memory+0x197/0x197
[  426.373348]  ? __lock_acquire+0x62f/0x4c20
[  426.377601]  ? percpu_ref_get_many+0x240/0x240
[  426.382196]  ? print_usage_bug+0xc0/0xc0
[  426.386267]  ? zap_class+0x640/0x640
[  426.389986]  ? print_usage_bug+0xc0/0xc0
[  426.394059]  ? print_usage_bug+0xc0/0xc0
[  426.398152]  ? zap_class+0x640/0x640
[  426.401873]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.407427]  ? find_held_lock+0x36/0x1c0
[  426.411507]  ? mark_held_locks+0xc7/0x130
[  426.415663]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  426.420774]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  426.425885]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  426.430477]  ? trace_hardirqs_on+0xbd/0x310
[  426.434806]  ? kasan_check_read+0x11/0x20
[  426.438975]  ? ___ratelimit+0x3b4/0x672
[  426.442969]  ? trace_hardirqs_off_caller+0x310/0x310
[  426.448085]  ? trace_hardirqs_on+0x310/0x310
[  426.452499]  ? lock_downgrade+0x900/0x900
[  426.456661]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  426.461768]  ? ___ratelimit+0x3b9/0x672
[  426.465749]  ? idr_get_free+0xf70/0xf70
[  426.469726]  ? find_held_lock+0x36/0x1c0
[  426.473800]  oom_kill_process.cold.27+0x10/0x903
[  426.478566]  ? zap_class+0x640/0x640
[  426.482285]  ? check_preemption_disabled+0x48/0x280
[  426.487312]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  426.492248]  ? kasan_check_read+0x11/0x20
[  426.496403]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  426.501703]  ? oom_evaluate_task+0x540/0x540
[  426.506120]  ? find_held_lock+0x36/0x1c0
[  426.510192]  ? out_of_memory+0x974/0x1430
[  426.514346]  ? lock_downgrade+0x900/0x900
[  426.518498]  ? check_preemption_disabled+0x48/0x280
[  426.523524]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  426.528461]  ? kasan_check_read+0x11/0x20
[  426.532612]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  426.537896]  ? rcu_softirq_qs+0x20/0x20
[  426.541884]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  426.547438]  ? oom_evaluate_task+0x302/0x540
[  426.551854]  out_of_memory+0xa84/0x1430
[  426.555845]  ? oom_killer_disable+0x3a0/0x3a0
[  426.560348]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  426.565290]  ? __ww_mutex_check_waiters+0x160/0x160
[  426.570331]  __alloc_pages_slowpath+0x232c/0x2de0
[  426.575220]  ? warn_alloc+0x120/0x120
[  426.579023]  ? mark_held_locks+0x130/0x130
[  426.583288]  ? find_get_entry+0xaae/0x1120
[  426.587544]  ? filemap_map_pages+0x1a20/0x1a20
[  426.592153]  ? zap_class+0x640/0x640
[  426.595878]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.601435]  ? check_preemption_disabled+0x48/0x280
[  426.606464]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  426.612013]  ? should_fail+0x22d/0xd01
[  426.615916]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  426.621030]  ? zap_class+0x640/0x640
[  426.624805]  ? __lock_is_held+0xb5/0x140
[  426.628882]  ? mark_held_locks+0x130/0x130
[  426.633128]  ? lock_release+0xa00/0xa00
[  426.637107]  ? perf_trace_sched_process_exec+0x860/0x860
[  426.642563]  ? xa_load+0x2ba/0x460
[  426.646114]  ? lock_downgrade+0x900/0x900
[  426.650283]  ? __might_sleep+0x95/0x190
[  426.654270]  __alloc_pages_nodemask+0xad8/0xea0
[  426.658958]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  426.663981]  ? __page_cache_alloc+0x191/0x5c0
[  426.668492]  ? xa_load+0x2e1/0x460
[  426.672036]  ? xa_clear_mark+0x40/0x40
[  426.675937]  ? zap_class+0x640/0x640
[  426.679664]  ? zap_class+0x640/0x640
[  426.683378]  ? zap_class+0x640/0x640
[  426.687099]  ? __do_page_cache_readahead+0x663/0x810
[  426.692216]  ? find_held_lock+0x36/0x1c0
[  426.696286]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  426.701839]  alloc_pages_current+0x173/0x350
[  426.706263]  __page_cache_alloc+0x38c/0x5c0
[  426.710586]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  426.715519]  ? kasan_check_read+0x11/0x20
[  426.719670]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  426.724956]  ? generic_perform_write+0x6a0/0x6a0
[  426.729721]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  426.735271]  ? check_preemption_disabled+0x48/0x280
[  426.740304]  filemap_fault+0x1595/0x25f0
[  426.744383]  ? __lock_page_or_retry+0xa00/0xa00
[  426.749073]  ? mark_held_locks+0x130/0x130
[  426.753323]  ? filemap_map_pages+0xd6b/0x1a20
[  426.757824]  ? lock_downgrade+0x900/0x900
[  426.761981]  ? check_preemption_disabled+0x48/0x280
[  426.767009]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  426.771942]  ? kasan_check_read+0x11/0x20
[  426.776099]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  426.781385]  ? rcu_softirq_qs+0x20/0x20
[  426.785381]  ? filemap_map_pages+0xd92/0x1a20
[  426.789901]  ? find_get_entries_tag+0x1400/0x1400
[  426.794759]  ? debug_object_destroy+0x2b0/0x2b0
[  426.799441]  ? lock_pi_update_atomic+0x150/0x150
[  426.804206]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.809768]  ? lock_acquire+0x1ed/0x520
[  426.813749]  ? ext4_filemap_fault+0x7a/0xad
[  426.818087]  ? lock_release+0xa00/0xa00
[  426.822072]  ? perf_trace_sched_process_exec+0x860/0x860
[  426.827532]  ? print_usage_bug+0xc0/0xc0
[  426.831601]  ? print_usage_bug+0xc0/0xc0
[  426.835680]  ? down_read+0x8d/0x120
[  426.839312]  ? ext4_filemap_fault+0x7a/0xad
[  426.843641]  ? __down_interruptible+0x700/0x700
[  426.848326]  ext4_filemap_fault+0x82/0xad
[  426.852484]  __do_fault+0x100/0x6b0
[  426.856115]  ? find_held_lock+0x36/0x1c0
[  426.860189]  ? pmd_devmap_trans_unstable+0x220/0x220
[  426.865310]  ? mark_held_locks+0x130/0x130
[  426.869552]  ? mark_held_locks+0x130/0x130
[  426.873796]  ? debug_smp_processor_id+0x1c/0x20
[  426.878475]  ? perf_trace_lock+0x14d/0x7a0
[  426.882727]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  426.888282]  __handle_mm_fault+0x3ea0/0x5be0
[  426.892724]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  426.897586]  ? lock_is_held_type+0x210/0x210
[  426.902010]  ? __switch_to_asm+0x34/0x70
[  426.906081]  ? __switch_to_asm+0x34/0x70
[  426.910165]  ? zap_class+0x640/0x640
[  426.913882]  ? zap_class+0x640/0x640
[  426.917597]  ? __x64_sys_futex+0x53e/0x6a0
[  426.921839]  ? find_held_lock+0x36/0x1c0
[  426.925917]  ? handle_mm_fault+0x42a/0xc70
[  426.930160]  ? lock_downgrade+0x900/0x900
[  426.934316]  ? check_preemption_disabled+0x48/0x280
[  426.939343]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  426.944279]  ? kasan_check_read+0x11/0x20
[  426.948440]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  426.953727]  ? rcu_softirq_qs+0x20/0x20
[  426.957705]  ? trace_hardirqs_off_caller+0x310/0x310
[  426.962818]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  426.968369]  ? check_preemption_disabled+0x48/0x280
[  426.973402]  handle_mm_fault+0x54f/0xc70
[  426.977478]  ? __handle_mm_fault+0x5be0/0x5be0
[  426.982078]  ? find_vma+0x34/0x190
[  426.985631]  __do_page_fault+0x5e8/0xe60
[  426.989698]  ? trace_hardirqs_off+0xb8/0x310
[  426.994130]  do_page_fault+0xf2/0x7e0
[  426.997935]  ? vmalloc_sync_all+0x30/0x30
[  427.002099]  ? error_entry+0x70/0xd0
[  427.005818]  ? trace_hardirqs_off_caller+0xbb/0x310
[  427.010838]  ? trace_hardirqs_on_caller+0xc0/0x310
[  427.015772]  ? syscall_return_slowpath+0x5e0/0x5e0
[  427.020719]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  427.025593]  ? trace_hardirqs_on_caller+0x310/0x310
[  427.030616]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  427.036098]  ? prepare_exit_to_usermode+0x291/0x3b0
[  427.041126]  ? page_fault+0x8/0x30
[  427.044674]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  427.049529]  ? page_fault+0x8/0x30
[  427.053081]  page_fault+0x1e/0x30
[  427.056536] RIP: 0033:0x45ddf3
[  427.059740] Code: Bad RIP value.
[  427.063110] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  427.068475] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  427.075840] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  427.083122] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  427.090399] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  427.097682] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  427.104983] warn_alloc_show_mem: 1 callbacks suppressed
[  427.104996] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  427.104998] Mem-Info:
[  427.105029] active_anon:45985 inactive_anon:296 isolated_anon:0
[  427.105029]  active_file:15 inactive_file:8 isolated_file:0
[  427.105029]  unevictable:0 dirty:0 writeback:0 unstable:0
[  427.105029]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  427.105029]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  427.105029]  free:13771 free_pcp:249 free_cma:0
[  427.110370] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  427.110380] Call Trace:
[  427.117767] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  427.120172]  <IRQ>
[  427.152967] 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
[  427.162344]  dump_stack+0x244/0x39d
[  427.164907] lowmem_reserve[]: 0 2818 6321 6321
[  427.192935]  ? dump_stack_print_info.cold.1+0x20/0x20
[  427.195075] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  427.221205]  warn_alloc.cold.116+0xb7/0x1bd
[  427.224806] lowmem_reserve[]: 0 0 3503 3503
[  427.229392]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  427.234563] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  427.262085]  ? lock_downgrade+0x900/0x900
[  427.266377] lowmem_reserve[]: 0 0 0 0
[  427.270717]  ? trace_hardirqs_off+0xb8/0x310
[  427.275533] 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
[  427.305004]  ? trace_hardirqs_off+0xb8/0x310
[  427.309132] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  427.312942]  __alloc_pages_slowpath+0x2651/0x2de0
[  427.317316] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  427.330906]  ? warn_alloc+0x120/0x120
[  427.335283] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  427.350373]  ? warn_alloc+0x120/0x120
[  427.355203] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  427.370642]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  427.374434] 376 total pagecache pages
[  427.383278]  ? warn_alloc+0x120/0x120
[  427.387073] 0 pages in swap cache
[  427.395662]  ? print_usage_bug+0xc0/0xc0
[  427.400663] Swap cache stats: add 0, delete 0, find 0/0
[  427.404462]  ? print_usage_bug+0xc0/0xc0
[  427.408234] Free swap  = 0kB
[  427.411689]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  427.415716] Total swap = 0kB
[  427.415724] 1965979 pages RAM
[  427.421103]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  427.425142] 0 pages HighMem/MovableOnly
[  427.428164]  ? should_fail+0x22d/0xd01
[  427.433324] 342854 pages reserved
[  427.433333] 0 pages cma reserved
[  427.436356]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  427.439516] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  427.444980]  ? __lock_acquire+0x62f/0x4c20
[  427.449042] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  427.452821]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  427.456256] syz-fuzzer cpuset=/ mems_allowed=0
[  427.459640]  ? should_fail+0x22d/0xd01
[  427.499263]  ? mark_held_locks+0x130/0x130
[  427.503519]  ? mark_held_locks+0x130/0x130
[  427.507767]  ? print_usage_bug+0xc0/0xc0
[  427.511851]  ? find_held_lock+0x36/0x1c0
[  427.515934]  ? zap_class+0x640/0x640
[  427.519670]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.525220]  ? check_preemption_disabled+0x48/0x280
[  427.530262]  ? __lock_is_held+0xb5/0x140
[  427.534347]  __alloc_pages_nodemask+0xad8/0xea0
[  427.539034]  ? zap_class+0x640/0x640
[  427.542775]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  427.547818]  ? find_held_lock+0x36/0x1c0
[  427.551901]  ? ____cache_alloc_node+0x1c7/0x1e0
[  427.556590]  ? lock_downgrade+0x900/0x900
[  427.560758]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.566317]  cache_grow_begin+0xa5/0x8c0
[  427.570397]  ? do_raw_spin_unlock+0xa7/0x330
[  427.574832]  fallback_alloc+0x204/0x2e0
[  427.578827]  ____cache_alloc_node+0x1c7/0x1e0
[  427.583346]  kmem_cache_alloc_node+0xe3/0x730
[  427.587857]  ? mark_held_locks+0xc7/0x130
[  427.592030]  __alloc_skb+0x119/0x770
[  427.595774]  ? netdev_alloc_frag+0x1f0/0x1f0
[  427.600192]  ? do_raw_spin_trylock+0x270/0x270
[  427.604789]  ? kmem_cache_alloc_trace+0x353/0x750
[  427.609651]  ? queue_work_on+0x12c/0x1e0
[  427.613732]  ? switchdev_port_obj_del+0xe3/0x450
[  427.618502]  ? switchdev_trans_item_enqueue+0x260/0x260
[  427.623901]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  427.628953]  __br_mdb_notify+0x4ff/0x15d0
[  427.633129]  ? __br_mdb_add+0x7f0/0x7f0
[  427.637130]  ? zap_class+0x640/0x640
[  427.640871]  ? br_multicast_group_expired+0x96/0x610
[  427.645989]  ? lock_downgrade+0x900/0x900
[  427.650158]  br_mdb_notify+0x310/0x410
[  427.654066]  ? br_mdb_dump+0x27b0/0x27b0
[  427.658145]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.663709]  br_multicast_group_expired+0x1bc/0x610
[  427.668748]  ? br_mdb_free+0x80/0x80
[  427.672488]  call_timer_fn+0x272/0x920
[  427.676398]  ? br_mdb_free+0x80/0x80
[  427.680130]  ? process_timeout+0x40/0x40
[  427.684220]  ? __run_timers+0x7da/0xc70
[  427.688224]  ? _raw_spin_unlock_irq+0x27/0x80
[  427.692733]  ? _raw_spin_unlock_irq+0x27/0x80
[  427.697245]  ? br_mdb_free+0x80/0x80
[  427.700978]  ? lockdep_hardirqs_on+0x296/0x5b0
[  427.705581]  ? trace_hardirqs_on+0xbd/0x310
[  427.709922]  ? kasan_check_read+0x11/0x20
[  427.714087]  ? __run_timers+0x7da/0xc70
[  427.718093]  ? trace_hardirqs_off_caller+0x310/0x310
[  427.723217]  ? br_mdb_free+0x80/0x80
[  427.726951]  ? br_mdb_free+0x80/0x80
[  427.730674]  __run_timers+0x7e5/0xc70
[  427.734501]  ? timer_fixup_init+0x70/0x70
[  427.738671]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  427.743703]  ? zap_class+0x640/0x640
[  427.747431]  ? enqueue_hrtimer+0x1a5/0x560
[  427.751697]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  427.756908]  ? find_held_lock+0x36/0x1c0
[  427.760990]  ? zap_class+0x640/0x640
[  427.764720]  ? pvclock_read_flags+0x160/0x160
[  427.769230]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.774786]  ? check_preemption_disabled+0x48/0x280
[  427.779827]  ? __lock_is_held+0xb5/0x140
[  427.783902]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.789459]  ? check_preemption_disabled+0x48/0x280
[  427.794505]  run_timer_softirq+0x52/0xb0
[  427.798588]  ? rcu_read_lock_sched_held+0x14f/0x180
[  427.803619]  __do_softirq+0x308/0xb7e
[  427.807436]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  427.811942]  ? lock_downgrade+0x900/0x900
[  427.816106]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  427.821228]  ? pvclock_read_flags+0x160/0x160
[  427.825738]  ? lapic_next_event+0x5a/0x90
[  427.829902]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.835461]  ? kvm_clock_read+0x18/0x30
[  427.839452]  ? kvm_sched_clock_read+0x9/0x20
[  427.843885]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.849447]  ? check_preemption_disabled+0x48/0x280
[  427.854492]  irq_exit+0x17f/0x1c0
[  427.857979]  smp_apic_timer_interrupt+0x1cb/0x760
[  427.862839]  ? smp_reschedule_interrupt+0x109/0x650
[  427.867878]  ? smp_call_function_single_interrupt+0x650/0x650
[  427.873783]  ? interrupt_entry+0xb5/0xc0
[  427.877854]  ? trace_hardirqs_off_caller+0xbb/0x310
[  427.882883]  ? trace_hardirqs_off_caller+0xbb/0x310
[  427.887940]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  427.892800]  ? trace_hardirqs_on_caller+0x310/0x310
[  427.897828]  ? trace_hardirqs_on_caller+0x310/0x310
[  427.902868]  ? task_prio+0x50/0x50
[  427.906425]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.911979]  ? check_preemption_disabled+0x48/0x280
[  427.917015]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  427.921886]  apic_timer_interrupt+0xf/0x20
[  427.926133]  </IRQ>
[  427.928404] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  427.933369] 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 42 f3
[  427.952281] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  427.960007] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  427.967310] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  427.974598] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  427.981909] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  427.989198] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  427.996529]  skb_clone+0x1bb/0x500
[  428.000105]  ? skb_split+0x11e0/0x11e0
[  428.004008]  ? check_preemption_disabled+0x48/0x280
[  428.009059]  ? __this_cpu_preempt_check+0x1c/0x20
[  428.013927]  ? __bpf_redirect+0x55b/0xb60
[  428.018097]  ? __switch_to_asm+0x34/0x70
[  428.022175]  ? __switch_to_asm+0x40/0x70
[  428.026258]  bpf_clone_redirect+0xb9/0x490
[  428.030515]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  428.035568]  ? __sched_text_start+0x8/0x8
[  428.039742]  ? find_held_lock+0x36/0x1c0
[  428.043828]  ? lock_acquire+0x1ed/0x520
[  428.047817]  ? bpf_test_run+0x3cb/0x780
[  428.051802]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.057366]  ? check_preemption_disabled+0x48/0x280
[  428.062409]  ? kasan_check_read+0x11/0x20
[  428.066570]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  428.071860]  ? rcu_softirq_qs+0x20/0x20
[  428.075854]  ? preempt_schedule+0x4d/0x60
[  428.080014]  ? ___preempt_schedule+0x16/0x18
[  428.084451]  ? bpf_test_run+0x25d/0x780
[  428.088449]  ? netlink_diag_dump+0x2a0/0x2a0
[  428.092878]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  428.098453]  ? bpf_test_init.isra.10+0x70/0x100
[  428.103144]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  428.107930]  ? bpf_test_finish.isra.9+0x260/0x260
[  428.112792]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  428.118345]  ? fput+0x130/0x1a0
[  428.121647]  ? __bpf_prog_get+0x9b/0x290
[  428.125728]  ? bpf_test_finish.isra.9+0x260/0x260
[  428.130586]  ? bpf_prog_test_run+0x130/0x1a0
[  428.135011]  ? __x64_sys_bpf+0x3db/0x520
[  428.139089]  ? bpf_prog_get+0x20/0x20
[  428.142930]  ? do_syscall_64+0x1b9/0x820
[  428.147004]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  428.152401]  ? syscall_return_slowpath+0x5e0/0x5e0
[  428.157344]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  428.162204]  ? trace_hardirqs_on_caller+0x310/0x310
[  428.167260]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  428.172296]  ? prepare_exit_to_usermode+0x291/0x3b0
[  428.177333]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  428.182199]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  428.187593] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  428.187745] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  428.194627] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  428.205117] syz-executor0 cpuset=syz0 mems_allowed=0
[  428.214477] Call Trace:
[  428.222157]  <IRQ>
[  428.224325]  dump_stack+0x244/0x39d
[  428.227964]  ? dump_stack_print_info.cold.1+0x20/0x20
[  428.233177]  warn_alloc.cold.116+0xb7/0x1bd
[  428.237507]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  428.242363]  ? lock_downgrade+0x900/0x900
[  428.246526]  ? trace_hardirqs_off+0xb8/0x310
[  428.250948]  ? trace_hardirqs_off+0xb8/0x310
[  428.255386]  __alloc_pages_slowpath+0x2651/0x2de0
[  428.260272]  ? warn_alloc+0x120/0x120
[  428.264086]  ? print_usage_bug+0xc0/0xc0
[  428.268158]  ? warn_alloc+0x120/0x120
[  428.271968]  ? warn_alloc+0x120/0x120
[  428.275775]  ? print_usage_bug+0xc0/0xc0
[  428.279846]  ? kvm_clock_read+0x18/0x30
[  428.283827]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  428.288851]  ? print_usage_bug+0xc0/0xc0
[  428.292915]  ? __lock_acquire+0x62f/0x4c20
[  428.297168]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  428.302717]  ? should_fail+0x22d/0xd01
[  428.306611]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  428.311901]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  428.317016]  ? __lock_acquire+0x62f/0x4c20
[  428.321268]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  428.326384]  ? __lock_acquire+0x62f/0x4c20
[  428.330636]  ? should_fail+0x22d/0xd01
[  428.334525]  ? rcu_irq_exit+0x1a2/0x390
[  428.338527]  ? mark_held_locks+0x130/0x130
[  428.342771]  ? mark_held_locks+0x130/0x130
[  428.347016]  ? mark_held_locks+0xc7/0x130
[  428.351180]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  428.356204]  ? zap_class+0x640/0x640
[  428.359923]  ? print_usage_bug+0xc0/0xc0
[  428.363994]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.369542]  ? check_preemption_disabled+0x48/0x280
[  428.374577]  ? __lock_is_held+0xb5/0x140
[  428.378651]  __alloc_pages_nodemask+0xad8/0xea0
[  428.383326]  ? zap_class+0x640/0x640
[  428.387062]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  428.392108]  ? find_held_lock+0x36/0x1c0
[  428.396184]  ? ____cache_alloc_node+0x1c7/0x1e0
[  428.400859]  ? lock_downgrade+0x900/0x900
[  428.405021]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.410580]  cache_grow_begin+0xa5/0x8c0
[  428.414650]  ? do_raw_spin_unlock+0xa7/0x330
[  428.419079]  fallback_alloc+0x204/0x2e0
[  428.423076]  ____cache_alloc_node+0x1c7/0x1e0
[  428.427583]  kmem_cache_alloc_node+0xe3/0x730
[  428.432087]  ? ipv6_get_ifaddr+0x42e/0x620
[  428.436340]  __alloc_skb+0x119/0x770
[  428.440074]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  428.445363]  ? netdev_alloc_frag+0x1f0/0x1f0
[  428.449781]  ? lock_downgrade+0x900/0x900
[  428.453940]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.459487]  ? refcount_sub_and_test_checked+0x203/0x310
[  428.464967]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  428.470431]  ? addrconf_rs_timer+0x690/0x690
[  428.474861]  ndisc_alloc_skb+0x144/0x340
[  428.478935]  ndisc_send_rs+0x331/0x6e0
[  428.482833]  addrconf_rs_timer+0x314/0x690
[  428.487085]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  428.491341]  call_timer_fn+0x272/0x920
[  428.495235]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  428.499480]  ? process_timeout+0x40/0x40
[  428.503557]  ? mark_held_locks+0xc7/0x130
[  428.507713]  ? _raw_spin_unlock_irq+0x27/0x80
[  428.512211]  ? _raw_spin_unlock_irq+0x27/0x80
[  428.516711]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  428.520952]  ? lockdep_hardirqs_on+0x296/0x5b0
[  428.525541]  ? trace_hardirqs_on+0xbd/0x310
[  428.529871]  ? kasan_check_read+0x11/0x20
[  428.534023]  ? __run_timers+0x7da/0xc70
[  428.538014]  ? trace_hardirqs_off_caller+0x310/0x310
[  428.543135]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  428.547379]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  428.551620]  __run_timers+0x7e5/0xc70
[  428.555441]  ? timer_fixup_init+0x70/0x70
[  428.559602]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  428.564626]  ? zap_class+0x640/0x640
[  428.568354]  ? print_usage_bug+0xc0/0xc0
[  428.572425]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  428.577632]  ? find_held_lock+0x36/0x1c0
[  428.581702]  ? zap_class+0x640/0x640
[  428.585430]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.590979]  ? check_preemption_disabled+0x48/0x280
[  428.596011]  ? __lock_is_held+0xb5/0x140
[  428.600086]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.605639]  ? check_preemption_disabled+0x48/0x280
[  428.610670]  run_timer_softirq+0x52/0xb0
[  428.614740]  ? rcu_read_lock_sched_held+0x14f/0x180
[  428.619765]  __do_softirq+0x308/0xb7e
[  428.623574]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  428.628083]  ? lock_downgrade+0x900/0x900
[  428.632248]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  428.637370]  ? pvclock_read_flags+0x160/0x160
[  428.641873]  ? lapic_next_event+0x5a/0x90
[  428.646028]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.651591]  ? kvm_clock_read+0x18/0x30
[  428.655583]  ? kvm_sched_clock_read+0x9/0x20
[  428.660004]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  428.665550]  ? check_preemption_disabled+0x48/0x280
[  428.670586]  irq_exit+0x17f/0x1c0
[  428.674047]  smp_apic_timer_interrupt+0x1cb/0x760
[  428.678906]  ? smp_reschedule_interrupt+0x109/0x650
[  428.683943]  ? smp_call_function_single_interrupt+0x650/0x650
[  428.689840]  ? interrupt_entry+0xb5/0xc0
[  428.693909]  ? trace_hardirqs_off_caller+0xbb/0x310
[  428.698930]  ? trace_hardirqs_off_caller+0xbb/0x310
[  428.703955]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  428.708802]  ? trace_hardirqs_on_caller+0x310/0x310
[  428.713838]  ? trace_hardirqs_on_caller+0x310/0x310
[  428.718881]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  428.723746]  apic_timer_interrupt+0xf/0x20
[  428.727976]  </IRQ>
[  428.730218] RIP: 0010:dump_stack+0x358/0x39d
[  428.734630] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  428.753546] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  428.761270] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  428.768547] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  428.775833] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  428.783119] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  428.790395] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  428.797704]  ? dump_stack+0x34f/0x39d
[  428.801524]  ? dump_stack_print_info.cold.1+0x20/0x20
[  428.806726]  ? mark_held_locks+0x130/0x130
[  428.810963]  ? mark_held_locks+0x130/0x130
[  428.815210]  dump_header+0x27b/0xf72
[  428.818940]  ? pagefault_out_of_memory+0x197/0x197
[  428.823886]  ? __lock_acquire+0x62f/0x4c20
[  428.828127]  ? percpu_ref_get_many+0x240/0x240
[  428.832720]  ? print_usage_bug+0xc0/0xc0
[  428.836799]  ? zap_class+0x640/0x640
[  428.840517]  ? print_usage_bug+0xc0/0xc0
[  428.844592]  ? print_usage_bug+0xc0/0xc0
[  428.848659]  ? zap_class+0x640/0x640
[  428.852386]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.857940]  ? find_held_lock+0x36/0x1c0
[  428.862015]  ? mark_held_locks+0xc7/0x130
[  428.866187]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  428.871297]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  428.876407]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  428.881002]  ? trace_hardirqs_on+0xbd/0x310
[  428.885332]  ? kasan_check_read+0x11/0x20
[  428.889490]  ? ___ratelimit+0x3b4/0x672
[  428.893473]  ? trace_hardirqs_off_caller+0x310/0x310
[  428.898586]  ? trace_hardirqs_on+0x310/0x310
[  428.903000]  ? lock_downgrade+0x900/0x900
[  428.907164]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  428.912295]  ? ___ratelimit+0x3b9/0x672
[  428.916281]  ? idr_get_free+0xf70/0xf70
[  428.920266]  ? find_held_lock+0x36/0x1c0
[  428.924353]  oom_kill_process.cold.27+0x10/0x903
[  428.929115]  ? zap_class+0x640/0x640
[  428.932835]  ? check_preemption_disabled+0x48/0x280
[  428.937866]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  428.942803]  ? kasan_check_read+0x11/0x20
[  428.946959]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  428.952246]  ? oom_evaluate_task+0x540/0x540
[  428.956675]  ? find_held_lock+0x36/0x1c0
[  428.960747]  ? out_of_memory+0x974/0x1430
[  428.964905]  ? lock_downgrade+0x900/0x900
[  428.969071]  ? check_preemption_disabled+0x48/0x280
[  428.974104]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  428.979038]  ? kasan_check_read+0x11/0x20
[  428.983198]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  428.988495]  ? rcu_softirq_qs+0x20/0x20
[  428.992481]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  428.998029]  ? oom_evaluate_task+0x302/0x540
[  429.002456]  out_of_memory+0xa84/0x1430
[  429.006449]  ? oom_killer_disable+0x3a0/0x3a0
[  429.010955]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  429.015898]  ? __ww_mutex_check_waiters+0x160/0x160
[  429.020933]  __alloc_pages_slowpath+0x232c/0x2de0
[  429.025815]  ? warn_alloc+0x120/0x120
[  429.029617]  ? mark_held_locks+0x130/0x130
[  429.033862]  ? find_get_entry+0xaae/0x1120
[  429.038114]  ? filemap_map_pages+0x1a20/0x1a20
[  429.042710]  ? zap_class+0x640/0x640
[  429.046454]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.052025]  ? check_preemption_disabled+0x48/0x280
[  429.057065]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  429.062611]  ? should_fail+0x22d/0xd01
[  429.066508]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  429.071624]  ? zap_class+0x640/0x640
[  429.075366]  ? __lock_is_held+0xb5/0x140
[  429.079443]  ? mark_held_locks+0x130/0x130
[  429.083694]  ? lock_release+0xa00/0xa00
[  429.087673]  ? perf_trace_sched_process_exec+0x860/0x860
[  429.093132]  ? xa_load+0x2ba/0x460
[  429.096682]  ? lock_downgrade+0x900/0x900
[  429.100844]  ? __might_sleep+0x95/0x190
[  429.104830]  __alloc_pages_nodemask+0xad8/0xea0
[  429.109512]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  429.114541]  ? __page_cache_alloc+0x191/0x5c0
[  429.119042]  ? xa_load+0x2e1/0x460
[  429.122594]  ? xa_clear_mark+0x40/0x40
[  429.126488]  ? zap_class+0x640/0x640
[  429.130213]  ? zap_class+0x640/0x640
[  429.133930]  ? zap_class+0x640/0x640
[  429.137650]  ? __do_page_cache_readahead+0x663/0x810
[  429.142770]  ? find_held_lock+0x36/0x1c0
[  429.146841]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  429.152397]  alloc_pages_current+0x173/0x350
[  429.156822]  __page_cache_alloc+0x38c/0x5c0
[  429.161147]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  429.166102]  ? kasan_check_read+0x11/0x20
[  429.170262]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  429.175551]  ? generic_perform_write+0x6a0/0x6a0
[  429.180791]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  429.186349]  ? check_preemption_disabled+0x48/0x280
[  429.191386]  filemap_fault+0x1595/0x25f0
[  429.195475]  ? __lock_page_or_retry+0xa00/0xa00
[  429.200161]  ? mark_held_locks+0x130/0x130
[  429.204411]  ? filemap_map_pages+0xd6b/0x1a20
[  429.208922]  ? lock_downgrade+0x900/0x900
[  429.213083]  ? check_preemption_disabled+0x48/0x280
[  429.218127]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  429.223068]  ? kasan_check_read+0x11/0x20
[  429.227223]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  429.232509]  ? rcu_softirq_qs+0x20/0x20
[  429.236506]  ? filemap_map_pages+0xd92/0x1a20
[  429.241023]  ? find_get_entries_tag+0x1400/0x1400
[  429.245887]  ? debug_object_destroy+0x2b0/0x2b0
[  429.250567]  ? lock_pi_update_atomic+0x150/0x150
[  429.255335]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.260900]  ? lock_acquire+0x1ed/0x520
[  429.264889]  ? ext4_filemap_fault+0x7a/0xad
[  429.269229]  ? lock_release+0xa00/0xa00
[  429.273207]  ? perf_trace_sched_process_exec+0x860/0x860
[  429.278675]  ? print_usage_bug+0xc0/0xc0
[  429.282743]  ? print_usage_bug+0xc0/0xc0
[  429.286819]  ? down_read+0x8d/0x120
[  429.290451]  ? ext4_filemap_fault+0x7a/0xad
[  429.294782]  ? __down_interruptible+0x700/0x700
[  429.299473]  ext4_filemap_fault+0x82/0xad
[  429.303633]  __do_fault+0x100/0x6b0
[  429.307266]  ? find_held_lock+0x36/0x1c0
[  429.311337]  ? pmd_devmap_trans_unstable+0x220/0x220
[  429.316454]  ? mark_held_locks+0x130/0x130
[  429.320693]  ? mark_held_locks+0x130/0x130
[  429.324936]  ? debug_smp_processor_id+0x1c/0x20
[  429.329613]  ? perf_trace_lock+0x14d/0x7a0
[  429.333861]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  429.339418]  __handle_mm_fault+0x3ea0/0x5be0
[  429.343848]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  429.348701]  ? lock_is_held_type+0x210/0x210
[  429.353120]  ? __switch_to_asm+0x34/0x70
[  429.357182]  ? __switch_to_asm+0x34/0x70
[  429.361260]  ? zap_class+0x640/0x640
[  429.364984]  ? zap_class+0x640/0x640
[  429.368700]  ? __x64_sys_futex+0x53e/0x6a0
[  429.372948]  ? find_held_lock+0x36/0x1c0
[  429.377027]  ? handle_mm_fault+0x42a/0xc70
[  429.381280]  ? lock_downgrade+0x900/0x900
[  429.385436]  ? check_preemption_disabled+0x48/0x280
[  429.390472]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  429.395421]  ? kasan_check_read+0x11/0x20
[  429.399578]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  429.404879]  ? rcu_softirq_qs+0x20/0x20
[  429.408857]  ? trace_hardirqs_off_caller+0x310/0x310
[  429.413970]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  429.419520]  ? check_preemption_disabled+0x48/0x280
[  429.424572]  handle_mm_fault+0x54f/0xc70
[  429.428648]  ? __handle_mm_fault+0x5be0/0x5be0
[  429.433239]  ? find_vma+0x34/0x190
[  429.436793]  __do_page_fault+0x5e8/0xe60
[  429.440859]  ? trace_hardirqs_off+0xb8/0x310
[  429.445287]  do_page_fault+0xf2/0x7e0
[  429.449097]  ? vmalloc_sync_all+0x30/0x30
[  429.453251]  ? error_entry+0x70/0xd0
[  429.456974]  ? trace_hardirqs_off_caller+0xbb/0x310
[  429.461996]  ? trace_hardirqs_on_caller+0xc0/0x310
[  429.466932]  ? syscall_return_slowpath+0x5e0/0x5e0
[  429.471869]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  429.476721]  ? trace_hardirqs_on_caller+0x310/0x310
[  429.481745]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  429.487209]  ? prepare_exit_to_usermode+0x291/0x3b0
[  429.492234]  ? page_fault+0x8/0x30
[  429.495783]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  429.500638]  ? page_fault+0x8/0x30
[  429.504186]  page_fault+0x1e/0x30
[  429.507638] RIP: 0033:0x45ddf3
[  429.510846] Code: Bad RIP value.
[  429.514217] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  429.519585] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  429.526863] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  429.534142] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  429.541429] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  429.548711] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  429.556017] warn_alloc_show_mem: 1 callbacks suppressed
[  429.556030] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  429.556031] Mem-Info:
[  429.556072] active_anon:45985 inactive_anon:296 isolated_anon:0
[  429.556072]  active_file:15 inactive_file:8 isolated_file:0
[  429.556072]  unevictable:0 dirty:0 writeback:0 unstable:0
[  429.556072]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  429.556072]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  429.556072]  free:13771 free_pcp:249 free_cma:0
[  429.561416] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  429.561428] Call Trace:
[  429.568815] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  429.571221]  <IRQ>
[  429.604013] 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
[  429.613392]  dump_stack+0x244/0x39d
[  429.615953] lowmem_reserve[]: 0 2818 6321 6321
[  429.643733]  ? dump_stack_print_info.cold.1+0x20/0x20
[  429.645857] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  429.671982]  warn_alloc.cold.116+0xb7/0x1bd
[  429.675585] lowmem_reserve[]: 0 0 3503 3503
[  429.680175]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  429.685344] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  429.712859]  ? lock_downgrade+0x900/0x900
[  429.717161] lowmem_reserve[]: 0 0 0 0
[  429.721494]  ? trace_hardirqs_off+0xb8/0x310
[  429.726315] 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
[  429.755309]  ? trace_hardirqs_off+0xb8/0x310
[  429.759441] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  429.763251]  __alloc_pages_slowpath+0x2651/0x2de0
[  429.767632] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  429.781202]  ? warn_alloc+0x120/0x120
[  429.785583] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  429.800675]  ? warn_alloc+0x120/0x120
[  429.805525] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  429.820979]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  429.824760] 376 total pagecache pages
[  429.833606]  ? warn_alloc+0x120/0x120
[  429.837393] 0 pages in swap cache
[  429.845973]  ? print_usage_bug+0xc0/0xc0
[  429.850970] Swap cache stats: add 0, delete 0, find 0/0
[  429.854769]  ? print_usage_bug+0xc0/0xc0
[  429.858547] Free swap  = 0kB
[  429.862002]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  429.866037] Total swap = 0kB
[  429.871419]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  429.875459] 1965979 pages RAM
[  429.878490]  ? should_fail+0x22d/0xd01
[  429.883646] 0 pages HighMem/MovableOnly
[  429.883655] 342854 pages reserved
[  429.886682]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  429.892195] 0 pages cma reserved
[  429.895306]  ? __lock_acquire+0x62f/0x4c20
[  429.899226] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  429.903149]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  429.906644] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  429.911702]  ? should_fail+0x22d/0xd01
[  429.915060] syz-fuzzer cpuset=/ mems_allowed=0
[  429.919303]  ? mark_held_locks+0x130/0x130
[  429.953784]  ? mark_held_locks+0x130/0x130
[  429.958037]  ? print_usage_bug+0xc0/0xc0
[  429.962126]  ? find_held_lock+0x36/0x1c0
[  429.966214]  ? zap_class+0x640/0x640
[  429.969952]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.975507]  ? check_preemption_disabled+0x48/0x280
[  429.980548]  ? __lock_is_held+0xb5/0x140
[  429.984630]  __alloc_pages_nodemask+0xad8/0xea0
[  429.989315]  ? zap_class+0x640/0x640
[  429.993050]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  429.998112]  ? find_held_lock+0x36/0x1c0
[  430.002198]  ? ____cache_alloc_node+0x1c7/0x1e0
[  430.006883]  ? lock_downgrade+0x900/0x900
[  430.011068]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.016628]  cache_grow_begin+0xa5/0x8c0
[  430.020706]  ? do_raw_spin_unlock+0xa7/0x330
[  430.025138]  fallback_alloc+0x204/0x2e0
[  430.029133]  ____cache_alloc_node+0x1c7/0x1e0
[  430.033652]  kmem_cache_alloc_node+0xe3/0x730
[  430.038166]  ? mark_held_locks+0xc7/0x130
[  430.042340]  __alloc_skb+0x119/0x770
[  430.046079]  ? netdev_alloc_frag+0x1f0/0x1f0
[  430.050499]  ? do_raw_spin_trylock+0x270/0x270
[  430.055102]  ? kmem_cache_alloc_trace+0x353/0x750
[  430.059972]  ? queue_work_on+0x12c/0x1e0
[  430.064076]  ? switchdev_port_obj_del+0xe3/0x450
[  430.068851]  ? switchdev_trans_item_enqueue+0x260/0x260
[  430.074243]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  430.079287]  __br_mdb_notify+0x4ff/0x15d0
[  430.083471]  ? __br_mdb_add+0x7f0/0x7f0
[  430.087471]  ? zap_class+0x640/0x640
[  430.091211]  ? br_multicast_group_expired+0x96/0x610
[  430.096328]  ? lock_downgrade+0x900/0x900
[  430.100523]  br_mdb_notify+0x310/0x410
[  430.104427]  ? br_mdb_dump+0x27b0/0x27b0
[  430.108508]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.114078]  br_multicast_group_expired+0x1bc/0x610
[  430.119115]  ? br_mdb_free+0x80/0x80
[  430.122857]  call_timer_fn+0x272/0x920
[  430.126758]  ? br_mdb_free+0x80/0x80
[  430.130483]  ? process_timeout+0x40/0x40
[  430.134576]  ? __run_timers+0x7da/0xc70
[  430.138565]  ? _raw_spin_unlock_irq+0x27/0x80
[  430.143080]  ? _raw_spin_unlock_irq+0x27/0x80
[  430.147589]  ? br_mdb_free+0x80/0x80
[  430.151320]  ? lockdep_hardirqs_on+0x296/0x5b0
[  430.155920]  ? trace_hardirqs_on+0xbd/0x310
[  430.160256]  ? kasan_check_read+0x11/0x20
[  430.164418]  ? __run_timers+0x7da/0xc70
[  430.168403]  ? trace_hardirqs_off_caller+0x310/0x310
[  430.173534]  ? br_mdb_free+0x80/0x80
[  430.177263]  ? br_mdb_free+0x80/0x80
[  430.180984]  __run_timers+0x7e5/0xc70
[  430.184808]  ? timer_fixup_init+0x70/0x70
[  430.188984]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  430.194021]  ? zap_class+0x640/0x640
[  430.197761]  ? enqueue_hrtimer+0x1a5/0x560
[  430.202011]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  430.207222]  ? find_held_lock+0x36/0x1c0
[  430.211301]  ? zap_class+0x640/0x640
[  430.215027]  ? pvclock_read_flags+0x160/0x160
[  430.219547]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.225106]  ? check_preemption_disabled+0x48/0x280
[  430.230147]  ? __lock_is_held+0xb5/0x140
[  430.234227]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.239780]  ? check_preemption_disabled+0x48/0x280
[  430.244816]  run_timer_softirq+0x52/0xb0
[  430.248894]  ? rcu_read_lock_sched_held+0x14f/0x180
[  430.253938]  __do_softirq+0x308/0xb7e
[  430.257760]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  430.262267]  ? lock_downgrade+0x900/0x900
[  430.266434]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  430.271558]  ? pvclock_read_flags+0x160/0x160
[  430.276076]  ? lapic_next_event+0x5a/0x90
[  430.280243]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.285802]  ? kvm_clock_read+0x18/0x30
[  430.289788]  ? kvm_sched_clock_read+0x9/0x20
[  430.294214]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.299769]  ? check_preemption_disabled+0x48/0x280
[  430.304808]  irq_exit+0x17f/0x1c0
[  430.308277]  smp_apic_timer_interrupt+0x1cb/0x760
[  430.313600]  ? smp_reschedule_interrupt+0x109/0x650
[  430.318641]  ? smp_call_function_single_interrupt+0x650/0x650
[  430.324547]  ? interrupt_entry+0xb5/0xc0
[  430.328627]  ? trace_hardirqs_off_caller+0xbb/0x310
[  430.333657]  ? trace_hardirqs_off_caller+0xbb/0x310
[  430.338693]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  430.343558]  ? trace_hardirqs_on_caller+0x310/0x310
[  430.348585]  ? trace_hardirqs_on_caller+0x310/0x310
[  430.353616]  ? task_prio+0x50/0x50
[  430.357172]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.362727]  ? check_preemption_disabled+0x48/0x280
[  430.367767]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  430.372635]  apic_timer_interrupt+0xf/0x20
[  430.377537]  </IRQ>
[  430.379790] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  430.384730] 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 42 f3
[  430.403665] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  430.411395] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  430.418686] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  430.425986] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  430.433270] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  430.440559] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  430.447888]  skb_clone+0x1bb/0x500
[  430.451459]  ? skb_split+0x11e0/0x11e0
[  430.455363]  ? check_preemption_disabled+0x48/0x280
[  430.460401]  ? __this_cpu_preempt_check+0x1c/0x20
[  430.465259]  ? __bpf_redirect+0x55b/0xb60
[  430.469427]  ? __switch_to_asm+0x34/0x70
[  430.473510]  ? __switch_to_asm+0x40/0x70
[  430.477593]  bpf_clone_redirect+0xb9/0x490
[  430.481854]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  430.486889]  ? __sched_text_start+0x8/0x8
[  430.491077]  ? find_held_lock+0x36/0x1c0
[  430.495160]  ? lock_acquire+0x1ed/0x520
[  430.499151]  ? bpf_test_run+0x3cb/0x780
[  430.503141]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.508700]  ? check_preemption_disabled+0x48/0x280
[  430.513739]  ? kasan_check_read+0x11/0x20
[  430.517898]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  430.523192]  ? rcu_softirq_qs+0x20/0x20
[  430.527200]  ? preempt_schedule+0x4d/0x60
[  430.531361]  ? ___preempt_schedule+0x16/0x18
[  430.535796]  ? bpf_test_run+0x25d/0x780
[  430.539799]  ? netlink_diag_dump+0x2a0/0x2a0
[  430.544228]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  430.549780]  ? bpf_test_init.isra.10+0x70/0x100
[  430.554473]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  430.559258]  ? bpf_test_finish.isra.9+0x260/0x260
[  430.564115]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  430.569670]  ? fput+0x130/0x1a0
[  430.572972]  ? __bpf_prog_get+0x9b/0x290
[  430.577060]  ? bpf_test_finish.isra.9+0x260/0x260
[  430.581928]  ? bpf_prog_test_run+0x130/0x1a0
[  430.586356]  ? __x64_sys_bpf+0x3db/0x520
[  430.590446]  ? bpf_prog_get+0x20/0x20
[  430.594298]  ? do_syscall_64+0x1b9/0x820
[  430.598380]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  430.603770]  ? syscall_return_slowpath+0x5e0/0x5e0
[  430.608716]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  430.613612]  ? trace_hardirqs_on_caller+0x310/0x310
[  430.618658]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  430.623694]  ? prepare_exit_to_usermode+0x291/0x3b0
[  430.628738]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  430.633609]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  430.639008] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  430.639169] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  430.646050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  430.656544] syz-executor0 cpuset=syz0 mems_allowed=0
[  430.665910] Call Trace:
[  430.673591]  <IRQ>
[  430.675752]  dump_stack+0x244/0x39d
[  430.679385]  ? dump_stack_print_info.cold.1+0x20/0x20
[  430.684598]  warn_alloc.cold.116+0xb7/0x1bd
[  430.688928]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  430.693782]  ? lock_downgrade+0x900/0x900
[  430.697943]  ? trace_hardirqs_off+0xb8/0x310
[  430.702372]  ? trace_hardirqs_off+0xb8/0x310
[  430.706801]  __alloc_pages_slowpath+0x2651/0x2de0
[  430.711683]  ? warn_alloc+0x120/0x120
[  430.715495]  ? print_usage_bug+0xc0/0xc0
[  430.719562]  ? warn_alloc+0x120/0x120
[  430.723371]  ? warn_alloc+0x120/0x120
[  430.727176]  ? print_usage_bug+0xc0/0xc0
[  430.731252]  ? print_usage_bug+0xc0/0xc0
[  430.735321]  ? __lock_acquire+0x62f/0x4c20
[  430.739571]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  430.745121]  ? should_fail+0x22d/0xd01
[  430.749016]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  430.754131]  ? __lock_acquire+0x62f/0x4c20
[  430.758388]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  430.763511]  ? __lock_acquire+0x62f/0x4c20
[  430.767750]  ? should_fail+0x22d/0xd01
[  430.771647]  ? find_held_lock+0x36/0x1c0
[  430.775724]  ? mark_held_locks+0x130/0x130
[  430.779969]  ? mark_held_locks+0x130/0x130
[  430.784211]  ? zap_class+0x640/0x640
[  430.787939]  ? zap_class+0x640/0x640
[  430.791662]  ? print_usage_bug+0xc0/0xc0
[  430.795728]  ? do_raw_spin_unlock+0xa7/0x330
[  430.800145]  ? zap_class+0x640/0x640
[  430.803863]  ? print_usage_bug+0xc0/0xc0
[  430.807933]  ? wq_watchdog_touch+0x9c/0xfe
[  430.812181]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.817736]  ? check_preemption_disabled+0x48/0x280
[  430.822774]  ? __lock_is_held+0xb5/0x140
[  430.826848]  __alloc_pages_nodemask+0xad8/0xea0
[  430.831531]  ? zap_class+0x640/0x640
[  430.835254]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  430.840287]  ? find_held_lock+0x36/0x1c0
[  430.844364]  ? ____cache_alloc_node+0x1c7/0x1e0
[  430.849041]  ? lock_downgrade+0x900/0x900
[  430.853217]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.858771]  cache_grow_begin+0xa5/0x8c0
[  430.862839]  ? do_raw_spin_unlock+0xa7/0x330
[  430.867263]  fallback_alloc+0x204/0x2e0
[  430.871251]  ____cache_alloc_node+0x1c7/0x1e0
[  430.875762]  kmem_cache_alloc_node+0xe3/0x730
[  430.880266]  ? ipv6_get_ifaddr+0x42e/0x620
[  430.884517]  __alloc_skb+0x119/0x770
[  430.888237]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  430.893537]  ? netdev_alloc_frag+0x1f0/0x1f0
[  430.897958]  ? lock_downgrade+0x900/0x900
[  430.902122]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.907685]  ? refcount_sub_and_test_checked+0x203/0x310
[  430.913156]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  430.918625]  ? addrconf_rs_timer+0x690/0x690
[  430.923065]  ndisc_alloc_skb+0x144/0x340
[  430.927152]  ndisc_send_rs+0x331/0x6e0
[  430.931061]  addrconf_rs_timer+0x314/0x690
[  430.935315]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  430.939587]  call_timer_fn+0x272/0x920
[  430.943485]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  430.947723]  ? process_timeout+0x40/0x40
[  430.951803]  ? mark_held_locks+0xc7/0x130
[  430.955960]  ? _raw_spin_unlock_irq+0x27/0x80
[  430.960465]  ? _raw_spin_unlock_irq+0x27/0x80
[  430.964965]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  430.969207]  ? lockdep_hardirqs_on+0x296/0x5b0
[  430.973799]  ? trace_hardirqs_on+0xbd/0x310
[  430.978140]  ? kasan_check_read+0x11/0x20
[  430.982297]  ? __run_timers+0x7da/0xc70
[  430.986275]  ? trace_hardirqs_off_caller+0x310/0x310
[  430.991392]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  430.995658]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  430.999898]  __run_timers+0x7e5/0xc70
[  431.003718]  ? timer_fixup_init+0x70/0x70
[  431.007873]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  431.012897]  ? zap_class+0x640/0x640
[  431.016619]  ? print_usage_bug+0xc0/0xc0
[  431.020687]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  431.025906]  ? find_held_lock+0x36/0x1c0
[  431.029977]  ? zap_class+0x640/0x640
[  431.033702]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.039249]  ? check_preemption_disabled+0x48/0x280
[  431.044288]  ? __lock_is_held+0xb5/0x140
[  431.048357]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.053907]  ? check_preemption_disabled+0x48/0x280
[  431.058937]  run_timer_softirq+0x52/0xb0
[  431.063008]  ? rcu_read_lock_sched_held+0x14f/0x180
[  431.068036]  __do_softirq+0x308/0xb7e
[  431.071857]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  431.076363]  ? lock_downgrade+0x900/0x900
[  431.080525]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  431.085645]  ? pvclock_read_flags+0x160/0x160
[  431.090150]  ? lapic_next_event+0x5a/0x90
[  431.094309]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.099867]  ? kvm_clock_read+0x18/0x30
[  431.103847]  ? kvm_sched_clock_read+0x9/0x20
[  431.108266]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  431.113817]  ? check_preemption_disabled+0x48/0x280
[  431.118851]  irq_exit+0x17f/0x1c0
[  431.122315]  smp_apic_timer_interrupt+0x1cb/0x760
[  431.127170]  ? smp_reschedule_interrupt+0x109/0x650
[  431.132205]  ? smp_call_function_single_interrupt+0x650/0x650
[  431.138107]  ? interrupt_entry+0xb5/0xc0
[  431.142181]  ? trace_hardirqs_off_caller+0xbb/0x310
[  431.147210]  ? trace_hardirqs_off_caller+0xbb/0x310
[  431.152241]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  431.157108]  ? trace_hardirqs_on_caller+0x310/0x310
[  431.162149]  ? trace_hardirqs_on_caller+0x310/0x310
[  431.167197]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  431.172065]  apic_timer_interrupt+0xf/0x20
[  431.176297]  </IRQ>
[  431.178538] RIP: 0010:dump_stack+0x358/0x39d
[  431.183478] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  431.202393] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  431.210131] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  431.217410] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  431.224695] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  431.231979] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  431.239870] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  431.247172]  ? dump_stack+0x34f/0x39d
[  431.250991]  ? dump_stack_print_info.cold.1+0x20/0x20
[  431.256195]  ? mark_held_locks+0x130/0x130
[  431.260439]  ? mark_held_locks+0x130/0x130
[  431.264696]  dump_header+0x27b/0xf72
[  431.268433]  ? pagefault_out_of_memory+0x197/0x197
[  431.273382]  ? __lock_acquire+0x62f/0x4c20
[  431.277628]  ? percpu_ref_get_many+0x240/0x240
[  431.282226]  ? print_usage_bug+0xc0/0xc0
[  431.286298]  ? zap_class+0x640/0x640
[  431.290017]  ? print_usage_bug+0xc0/0xc0
[  431.294086]  ? print_usage_bug+0xc0/0xc0
[  431.298157]  ? zap_class+0x640/0x640
[  431.301882]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.307441]  ? find_held_lock+0x36/0x1c0
[  431.311521]  ? mark_held_locks+0xc7/0x130
[  431.315675]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  431.320782]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  431.325895]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  431.330484]  ? trace_hardirqs_on+0xbd/0x310
[  431.334812]  ? kasan_check_read+0x11/0x20
[  431.338966]  ? ___ratelimit+0x3b4/0x672
[  431.342949]  ? trace_hardirqs_off_caller+0x310/0x310
[  431.348072]  ? trace_hardirqs_on+0x310/0x310
[  431.352488]  ? lock_downgrade+0x900/0x900
[  431.356647]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  431.361759]  ? ___ratelimit+0x3b9/0x672
[  431.365749]  ? idr_get_free+0xf70/0xf70
[  431.369733]  ? find_held_lock+0x36/0x1c0
[  431.373922]  oom_kill_process.cold.27+0x10/0x903
[  431.378687]  ? zap_class+0x640/0x640
[  431.382409]  ? check_preemption_disabled+0x48/0x280
[  431.387448]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  431.392388]  ? kasan_check_read+0x11/0x20
[  431.396549]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  431.401839]  ? oom_evaluate_task+0x540/0x540
[  431.406257]  ? find_held_lock+0x36/0x1c0
[  431.410330]  ? out_of_memory+0x974/0x1430
[  431.414495]  ? lock_downgrade+0x900/0x900
[  431.418650]  ? check_preemption_disabled+0x48/0x280
[  431.423681]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  431.428617]  ? kasan_check_read+0x11/0x20
[  431.432768]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  431.438072]  ? rcu_softirq_qs+0x20/0x20
[  431.442070]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  431.447615]  ? oom_evaluate_task+0x302/0x540
[  431.452031]  out_of_memory+0xa84/0x1430
[  431.456024]  ? oom_killer_disable+0x3a0/0x3a0
[  431.460532]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  431.465470]  ? __ww_mutex_check_waiters+0x160/0x160
[  431.470507]  __alloc_pages_slowpath+0x232c/0x2de0
[  431.475390]  ? warn_alloc+0x120/0x120
[  431.479198]  ? mark_held_locks+0x130/0x130
[  431.483453]  ? find_get_entry+0xaae/0x1120
[  431.487704]  ? filemap_map_pages+0x1a20/0x1a20
[  431.492300]  ? zap_class+0x640/0x640
[  431.496031]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.501587]  ? check_preemption_disabled+0x48/0x280
[  431.506624]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  431.512172]  ? should_fail+0x22d/0xd01
[  431.516077]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  431.521190]  ? zap_class+0x640/0x640
[  431.524931]  ? __lock_is_held+0xb5/0x140
[  431.529005]  ? mark_held_locks+0x130/0x130
[  431.533248]  ? lock_release+0xa00/0xa00
[  431.537229]  ? perf_trace_sched_process_exec+0x860/0x860
[  431.542685]  ? xa_load+0x2ba/0x460
[  431.546229]  ? lock_downgrade+0x900/0x900
[  431.550395]  ? __might_sleep+0x95/0x190
[  431.554391]  __alloc_pages_nodemask+0xad8/0xea0
[  431.559083]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  431.564149]  ? __page_cache_alloc+0x191/0x5c0
[  431.568643]  ? xa_load+0x2e1/0x460
[  431.572190]  ? xa_clear_mark+0x40/0x40
[  431.576091]  ? zap_class+0x640/0x640
[  431.579816]  ? zap_class+0x640/0x640
[  431.583535]  ? zap_class+0x640/0x640
[  431.587254]  ? __do_page_cache_readahead+0x663/0x810
[  431.592371]  ? find_held_lock+0x36/0x1c0
[  431.596445]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  431.601995]  alloc_pages_current+0x173/0x350
[  431.606421]  __page_cache_alloc+0x38c/0x5c0
[  431.610746]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  431.615681]  ? kasan_check_read+0x11/0x20
[  431.619835]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  431.625126]  ? generic_perform_write+0x6a0/0x6a0
[  431.629891]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  431.635443]  ? check_preemption_disabled+0x48/0x280
[  431.640476]  filemap_fault+0x1595/0x25f0
[  431.644560]  ? __lock_page_or_retry+0xa00/0xa00
[  431.649245]  ? mark_held_locks+0x130/0x130
[  431.653495]  ? filemap_map_pages+0xd6b/0x1a20
[  431.657998]  ? lock_downgrade+0x900/0x900
[  431.662155]  ? check_preemption_disabled+0x48/0x280
[  431.667183]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  431.672117]  ? kasan_check_read+0x11/0x20
[  431.676271]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  431.681557]  ? rcu_softirq_qs+0x20/0x20
[  431.685553]  ? filemap_map_pages+0xd92/0x1a20
[  431.690077]  ? find_get_entries_tag+0x1400/0x1400
[  431.694934]  ? debug_object_destroy+0x2b0/0x2b0
[  431.699622]  ? lock_pi_update_atomic+0x150/0x150
[  431.704380]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.709938]  ? lock_acquire+0x1ed/0x520
[  431.713917]  ? ext4_filemap_fault+0x7a/0xad
[  431.718253]  ? lock_release+0xa00/0xa00
[  431.722226]  ? perf_trace_sched_process_exec+0x860/0x860
[  431.727684]  ? print_usage_bug+0xc0/0xc0
[  431.731754]  ? print_usage_bug+0xc0/0xc0
[  431.735829]  ? down_read+0x8d/0x120
[  431.739455]  ? ext4_filemap_fault+0x7a/0xad
[  431.743781]  ? __down_interruptible+0x700/0x700
[  431.748468]  ext4_filemap_fault+0x82/0xad
[  431.752624]  __do_fault+0x100/0x6b0
[  431.756257]  ? find_held_lock+0x36/0x1c0
[  431.760329]  ? pmd_devmap_trans_unstable+0x220/0x220
[  431.765456]  ? mark_held_locks+0x130/0x130
[  431.769695]  ? mark_held_locks+0x130/0x130
[  431.773936]  ? debug_smp_processor_id+0x1c/0x20
[  431.778618]  ? perf_trace_lock+0x14d/0x7a0
[  431.782867]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  431.788425]  __handle_mm_fault+0x3ea0/0x5be0
[  431.792855]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  431.797705]  ? lock_is_held_type+0x210/0x210
[  431.802126]  ? __switch_to_asm+0x34/0x70
[  431.806191]  ? __switch_to_asm+0x34/0x70
[  431.810273]  ? zap_class+0x640/0x640
[  431.813988]  ? zap_class+0x640/0x640
[  431.817708]  ? __x64_sys_futex+0x53e/0x6a0
[  431.821954]  ? find_held_lock+0x36/0x1c0
[  431.826030]  ? handle_mm_fault+0x42a/0xc70
[  431.830284]  ? lock_downgrade+0x900/0x900
[  431.834440]  ? check_preemption_disabled+0x48/0x280
[  431.839472]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  431.844426]  ? kasan_check_read+0x11/0x20
[  431.848583]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  431.853868]  ? rcu_softirq_qs+0x20/0x20
[  431.857849]  ? trace_hardirqs_off_caller+0x310/0x310
[  431.862963]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  431.868511]  ? check_preemption_disabled+0x48/0x280
[  431.873542]  handle_mm_fault+0x54f/0xc70
[  431.877615]  ? __handle_mm_fault+0x5be0/0x5be0
[  431.882219]  ? find_vma+0x34/0x190
[  431.885767]  __do_page_fault+0x5e8/0xe60
[  431.889834]  ? trace_hardirqs_off+0xb8/0x310
[  431.894263]  do_page_fault+0xf2/0x7e0
[  431.898076]  ? vmalloc_sync_all+0x30/0x30
[  431.902231]  ? error_entry+0x70/0xd0
[  431.905957]  ? trace_hardirqs_off_caller+0xbb/0x310
[  431.910980]  ? trace_hardirqs_on_caller+0xc0/0x310
[  431.915931]  ? syscall_return_slowpath+0x5e0/0x5e0
[  431.920889]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  431.925742]  ? trace_hardirqs_on_caller+0x310/0x310
[  431.930767]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  431.936233]  ? prepare_exit_to_usermode+0x291/0x3b0
[  431.941259]  ? page_fault+0x8/0x30
[  431.944806]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  431.949659]  ? page_fault+0x8/0x30
[  431.953204]  page_fault+0x1e/0x30
[  431.956656] RIP: 0033:0x45ddf3
[  431.959860] Code: Bad RIP value.
[  431.963223] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  431.968585] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  431.975861] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  431.983137] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  431.990413] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  431.997699] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  432.004995] warn_alloc_show_mem: 1 callbacks suppressed
[  432.005007] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  432.005009] Mem-Info:
[  432.005031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  432.010409] active_anon:45985 inactive_anon:296 isolated_anon:0
[  432.010409]  active_file:15 inactive_file:8 isolated_file:0
[  432.010409]  unevictable:0 dirty:0 writeback:0 unstable:0
[  432.010409]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  432.010409]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  432.010409]  free:13771 free_pcp:249 free_cma:0
[  432.017751] Call Trace:
[  432.020177] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  432.029532]  <IRQ>
[  432.062324] 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
[  432.064920]  dump_stack+0x244/0x39d
[  432.092563] lowmem_reserve[]: 0 2818 6321 6321
[  432.094742]  ? dump_stack_print_info.cold.1+0x20/0x20
[  432.120831] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  432.124479]  warn_alloc.cold.116+0xb7/0x1bd
[  432.129023] lowmem_reserve[]: 0 0 3503 3503
[  432.134242]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  432.161747] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  432.166089]  ? lock_downgrade+0x900/0x900
[  432.170384] lowmem_reserve[]: 0 0 0 0
[  432.175233]  ? trace_hardirqs_off+0xb8/0x310
[  432.204816] 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
[  432.208973]  ? trace_hardirqs_off+0xb8/0x310
[  432.212751] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  432.217175]  __alloc_pages_slowpath+0x2651/0x2de0
[  432.230680] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  432.235128]  ? warn_alloc+0x120/0x120
[  432.250533] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  432.255381]  ? warn_alloc+0x120/0x120
[  432.270820] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  432.274630]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  432.283448] 376 total pagecache pages
[  432.283467] 0 pages in swap cache
[  432.287266]  ? warn_alloc+0x120/0x120
[  432.295826] Swap cache stats: add 0, delete 0, find 0/0
[  432.300847]  ? print_usage_bug+0xc0/0xc0
[  432.304623] Free swap  = 0kB
[  432.308087]  ? print_usage_bug+0xc0/0xc0
[  432.311966] Total swap = 0kB
[  432.311974] 1965979 pages RAM
[  432.317347]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  432.321383] 0 pages HighMem/MovableOnly
[  432.321392] 342854 pages reserved
[  432.324421]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  432.328449] 0 pages cma reserved
[  432.328520] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  432.331483]  ? should_fail+0x22d/0xd01
[  432.334623] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  432.339759]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  432.343712] syz-fuzzer cpuset=/ mems_allowed=0
[  432.347166]  ? __lock_acquire+0x62f/0x4c20
[  432.390542]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  432.395663]  ? should_fail+0x22d/0xd01
[  432.399594]  ? mark_held_locks+0x130/0x130
[  432.403850]  ? mark_held_locks+0x130/0x130
[  432.408103]  ? print_usage_bug+0xc0/0xc0
[  432.412187]  ? find_held_lock+0x36/0x1c0
[  432.416263]  ? zap_class+0x640/0x640
[  432.419996]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.425552]  ? check_preemption_disabled+0x48/0x280
[  432.430598]  ? __lock_is_held+0xb5/0x140
[  432.434677]  __alloc_pages_nodemask+0xad8/0xea0
[  432.439363]  ? zap_class+0x640/0x640
[  432.443104]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  432.448151]  ? find_held_lock+0x36/0x1c0
[  432.452244]  ? ____cache_alloc_node+0x1c7/0x1e0
[  432.456931]  ? lock_downgrade+0x900/0x900
[  432.461110]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.466669]  cache_grow_begin+0xa5/0x8c0
[  432.470746]  ? do_raw_spin_unlock+0xa7/0x330
[  432.475178]  fallback_alloc+0x204/0x2e0
[  432.479170]  ____cache_alloc_node+0x1c7/0x1e0
[  432.483685]  kmem_cache_alloc_node+0xe3/0x730
[  432.488195]  ? mark_held_locks+0xc7/0x130
[  432.492365]  __alloc_skb+0x119/0x770
[  432.496104]  ? netdev_alloc_frag+0x1f0/0x1f0
[  432.500528]  ? do_raw_spin_trylock+0x270/0x270
[  432.505129]  ? kmem_cache_alloc_trace+0x353/0x750
[  432.509992]  ? queue_work_on+0x12c/0x1e0
[  432.514084]  ? switchdev_port_obj_del+0xe3/0x450
[  432.518855]  ? switchdev_trans_item_enqueue+0x260/0x260
[  432.524236]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  432.529272]  __br_mdb_notify+0x4ff/0x15d0
[  432.533444]  ? __br_mdb_add+0x7f0/0x7f0
[  432.537441]  ? zap_class+0x640/0x640
[  432.541179]  ? br_multicast_group_expired+0x96/0x610
[  432.546295]  ? lock_downgrade+0x900/0x900
[  432.550462]  br_mdb_notify+0x310/0x410
[  432.554374]  ? br_mdb_dump+0x27b0/0x27b0
[  432.558455]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.564018]  br_multicast_group_expired+0x1bc/0x610
[  432.569071]  ? br_mdb_free+0x80/0x80
[  432.572810]  call_timer_fn+0x272/0x920
[  432.576714]  ? br_mdb_free+0x80/0x80
[  432.580437]  ? process_timeout+0x40/0x40
[  432.584515]  ? __run_timers+0x7da/0xc70
[  432.588502]  ? _raw_spin_unlock_irq+0x27/0x80
[  432.593022]  ? _raw_spin_unlock_irq+0x27/0x80
[  432.597531]  ? br_mdb_free+0x80/0x80
[  432.601261]  ? lockdep_hardirqs_on+0x296/0x5b0
[  432.605854]  ? trace_hardirqs_on+0xbd/0x310
[  432.610186]  ? kasan_check_read+0x11/0x20
[  432.614344]  ? __run_timers+0x7da/0xc70
[  432.618329]  ? trace_hardirqs_off_caller+0x310/0x310
[  432.623450]  ? br_mdb_free+0x80/0x80
[  432.627183]  ? br_mdb_free+0x80/0x80
[  432.630903]  __run_timers+0x7e5/0xc70
[  432.634727]  ? timer_fixup_init+0x70/0x70
[  432.638889]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  432.643934]  ? zap_class+0x640/0x640
[  432.647675]  ? enqueue_hrtimer+0x1a5/0x560
[  432.651933]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  432.657234]  ? find_held_lock+0x36/0x1c0
[  432.661315]  ? zap_class+0x640/0x640
[  432.665049]  ? pvclock_read_flags+0x160/0x160
[  432.669569]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.675125]  ? check_preemption_disabled+0x48/0x280
[  432.680171]  ? __lock_is_held+0xb5/0x140
[  432.684250]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.689803]  ? check_preemption_disabled+0x48/0x280
[  432.694842]  run_timer_softirq+0x52/0xb0
[  432.698915]  ? rcu_read_lock_sched_held+0x14f/0x180
[  432.703955]  __do_softirq+0x308/0xb7e
[  432.707778]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  432.712288]  ? lock_downgrade+0x900/0x900
[  432.716456]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  432.721583]  ? pvclock_read_flags+0x160/0x160
[  432.726104]  ? lapic_next_event+0x5a/0x90
[  432.730269]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.735826]  ? kvm_clock_read+0x18/0x30
[  432.739814]  ? kvm_sched_clock_read+0x9/0x20
[  432.744260]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.749813]  ? check_preemption_disabled+0x48/0x280
[  432.754853]  irq_exit+0x17f/0x1c0
[  432.758332]  smp_apic_timer_interrupt+0x1cb/0x760
[  432.763188]  ? smp_reschedule_interrupt+0x109/0x650
[  432.768225]  ? smp_call_function_single_interrupt+0x650/0x650
[  432.774127]  ? interrupt_entry+0xb5/0xc0
[  432.778205]  ? trace_hardirqs_off_caller+0xbb/0x310
[  432.783253]  ? trace_hardirqs_off_caller+0xbb/0x310
[  432.788291]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  432.793156]  ? trace_hardirqs_on_caller+0x310/0x310
[  432.798186]  ? trace_hardirqs_on_caller+0x310/0x310
[  432.803217]  ? task_prio+0x50/0x50
[  432.806777]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.812335]  ? check_preemption_disabled+0x48/0x280
[  432.817373]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  432.822263]  apic_timer_interrupt+0xf/0x20
[  432.826510]  </IRQ>
[  432.828763] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  432.833702] 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 42 f3
[  432.852617] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  432.860346] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  432.867631] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  432.874914] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  432.882201] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  432.889485] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  432.896817]  skb_clone+0x1bb/0x500
[  432.900378]  ? skb_split+0x11e0/0x11e0
[  432.904280]  ? check_preemption_disabled+0x48/0x280
[  432.909316]  ? __this_cpu_preempt_check+0x1c/0x20
[  432.914172]  ? __bpf_redirect+0x55b/0xb60
[  432.918328]  ? __switch_to_asm+0x34/0x70
[  432.922395]  ? __switch_to_asm+0x40/0x70
[  432.926470]  bpf_clone_redirect+0xb9/0x490
[  432.930731]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  432.935765]  ? __sched_text_start+0x8/0x8
[  432.939946]  ? find_held_lock+0x36/0x1c0
[  432.944034]  ? lock_acquire+0x1ed/0x520
[  432.948031]  ? bpf_test_run+0x3cb/0x780
[  432.952027]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.957592]  ? check_preemption_disabled+0x48/0x280
[  432.962634]  ? kasan_check_read+0x11/0x20
[  432.966795]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  432.972091]  ? rcu_softirq_qs+0x20/0x20
[  432.976096]  ? preempt_schedule+0x4d/0x60
[  432.980263]  ? ___preempt_schedule+0x16/0x18
[  432.984696]  ? bpf_test_run+0x25d/0x780
[  432.988694]  ? netlink_diag_dump+0x2a0/0x2a0
[  432.993119]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  432.998672]  ? bpf_test_init.isra.10+0x70/0x100
[  433.003367]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  433.008154]  ? bpf_test_finish.isra.9+0x260/0x260
[  433.013007]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  433.018556]  ? fput+0x130/0x1a0
[  433.021850]  ? __bpf_prog_get+0x9b/0x290
[  433.025928]  ? bpf_test_finish.isra.9+0x260/0x260
[  433.030782]  ? bpf_prog_test_run+0x130/0x1a0
[  433.035203]  ? __x64_sys_bpf+0x3db/0x520
[  433.039274]  ? bpf_prog_get+0x20/0x20
[  433.043117]  ? do_syscall_64+0x1b9/0x820
[  433.047187]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  433.052580]  ? syscall_return_slowpath+0x5e0/0x5e0
[  433.057519]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  433.062382]  ? trace_hardirqs_on_caller+0x310/0x310
[  433.067420]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  433.072459]  ? prepare_exit_to_usermode+0x291/0x3b0
[  433.077497]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  433.082364]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  433.087759] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  433.087986] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  433.094783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  433.094794] Call Trace:
[  433.105308] syz-executor0 cpuset=syz0 mems_allowed=0
[  433.114677]  <IRQ>
[  433.124515]  dump_stack+0x244/0x39d
[  433.128167]  ? dump_stack_print_info.cold.1+0x20/0x20
[  433.133390]  warn_alloc.cold.116+0xb7/0x1bd
[  433.137731]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  433.142587]  ? lock_downgrade+0x900/0x900
[  433.146756]  ? trace_hardirqs_off+0xb8/0x310
[  433.151186]  ? trace_hardirqs_off+0xb8/0x310
[  433.155613]  __alloc_pages_slowpath+0x2651/0x2de0
[  433.160497]  ? warn_alloc+0x120/0x120
[  433.164309]  ? print_usage_bug+0xc0/0xc0
[  433.168379]  ? warn_alloc+0x120/0x120
[  433.172191]  ? warn_alloc+0x120/0x120
[  433.175999]  ? print_usage_bug+0xc0/0xc0
[  433.180657]  ? print_usage_bug+0xc0/0xc0
[  433.184728]  ? __lock_acquire+0x62f/0x4c20
[  433.188977]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  433.194529]  ? should_fail+0x22d/0xd01
[  433.198456]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  433.203572]  ? __lock_acquire+0x62f/0x4c20
[  433.207819]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  433.212929]  ? __lock_acquire+0x62f/0x4c20
[  433.217170]  ? should_fail+0x22d/0xd01
[  433.221075]  ? find_held_lock+0x36/0x1c0
[  433.225166]  ? mark_held_locks+0x130/0x130
[  433.229412]  ? mark_held_locks+0x130/0x130
[  433.233659]  ? zap_class+0x640/0x640
[  433.237381]  ? zap_class+0x640/0x640
[  433.241105]  ? print_usage_bug+0xc0/0xc0
[  433.245170]  ? do_raw_spin_unlock+0xa7/0x330
[  433.249598]  ? zap_class+0x640/0x640
[  433.253323]  ? print_usage_bug+0xc0/0xc0
[  433.257389]  ? wq_watchdog_touch+0x9c/0xfe
[  433.261642]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.267198]  ? check_preemption_disabled+0x48/0x280
[  433.272238]  ? __lock_is_held+0xb5/0x140
[  433.276311]  __alloc_pages_nodemask+0xad8/0xea0
[  433.280994]  ? zap_class+0x640/0x640
[  433.284719]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  433.289757]  ? find_held_lock+0x36/0x1c0
[  433.293836]  ? ____cache_alloc_node+0x1c7/0x1e0
[  433.298517]  ? lock_downgrade+0x900/0x900
[  433.302701]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.308261]  cache_grow_begin+0xa5/0x8c0
[  433.312330]  ? do_raw_spin_unlock+0xa7/0x330
[  433.316772]  fallback_alloc+0x204/0x2e0
[  433.320763]  ____cache_alloc_node+0x1c7/0x1e0
[  433.325272]  kmem_cache_alloc_node+0xe3/0x730
[  433.329774]  ? ipv6_get_ifaddr+0x42e/0x620
[  433.334025]  __alloc_skb+0x119/0x770
[  433.337848]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  433.343144]  ? netdev_alloc_frag+0x1f0/0x1f0
[  433.347565]  ? lock_downgrade+0x900/0x900
[  433.351728]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.357277]  ? refcount_sub_and_test_checked+0x203/0x310
[  433.362745]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  433.368221]  ? addrconf_rs_timer+0x690/0x690
[  433.372654]  ndisc_alloc_skb+0x144/0x340
[  433.376729]  ndisc_send_rs+0x331/0x6e0
[  433.380631]  addrconf_rs_timer+0x314/0x690
[  433.384885]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.389137]  call_timer_fn+0x272/0x920
[  433.393038]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.397303]  ? process_timeout+0x40/0x40
[  433.401402]  ? mark_held_locks+0xc7/0x130
[  433.405568]  ? _raw_spin_unlock_irq+0x27/0x80
[  433.410080]  ? _raw_spin_unlock_irq+0x27/0x80
[  433.414606]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.418851]  ? lockdep_hardirqs_on+0x296/0x5b0
[  433.423450]  ? trace_hardirqs_on+0xbd/0x310
[  433.427781]  ? kasan_check_read+0x11/0x20
[  433.431937]  ? __run_timers+0x7da/0xc70
[  433.435925]  ? trace_hardirqs_off_caller+0x310/0x310
[  433.441065]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.445317]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.449563]  __run_timers+0x7e5/0xc70
[  433.453429]  ? timer_fixup_init+0x70/0x70
[  433.457590]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  433.462623]  ? zap_class+0x640/0x640
[  433.466356]  ? print_usage_bug+0xc0/0xc0
[  433.470436]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  433.475649]  ? find_held_lock+0x36/0x1c0
[  433.479728]  ? zap_class+0x640/0x640
[  433.483469]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.489028]  ? check_preemption_disabled+0x48/0x280
[  433.494088]  ? __lock_is_held+0xb5/0x140
[  433.498163]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.503719]  ? check_preemption_disabled+0x48/0x280
[  433.508759]  run_timer_softirq+0x52/0xb0
[  433.512836]  ? rcu_read_lock_sched_held+0x14f/0x180
[  433.517875]  __do_softirq+0x308/0xb7e
[  433.521699]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  433.526209]  ? lock_downgrade+0x900/0x900
[  433.530380]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  433.535506]  ? pvclock_read_flags+0x160/0x160
[  433.540024]  ? lapic_next_event+0x5a/0x90
[  433.544194]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.549776]  ? kvm_clock_read+0x18/0x30
[  433.553771]  ? kvm_sched_clock_read+0x9/0x20
[  433.558201]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  433.563773]  ? check_preemption_disabled+0x48/0x280
[  433.568817]  irq_exit+0x17f/0x1c0
[  433.572284]  smp_apic_timer_interrupt+0x1cb/0x760
[  433.577145]  ? smp_reschedule_interrupt+0x109/0x650
[  433.582183]  ? smp_call_function_single_interrupt+0x650/0x650
[  433.588104]  ? interrupt_entry+0xb5/0xc0
[  433.592184]  ? trace_hardirqs_off_caller+0xbb/0x310
[  433.597219]  ? trace_hardirqs_off_caller+0xbb/0x310
[  433.602256]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  433.607121]  ? trace_hardirqs_on_caller+0x310/0x310
[  433.612163]  ? trace_hardirqs_on_caller+0x310/0x310
[  433.617212]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  433.622086]  apic_timer_interrupt+0xf/0x20
[  433.626324]  </IRQ>
[  433.628569] RIP: 0010:dump_stack+0x358/0x39d
[  433.632986] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  433.651900] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  433.659642] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  433.666940] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  433.674275] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  433.681565] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  433.688851] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  433.696163]  ? dump_stack+0x34f/0x39d
[  433.699991]  ? dump_stack_print_info.cold.1+0x20/0x20
[  433.705197]  ? mark_held_locks+0x130/0x130
[  433.709446]  ? mark_held_locks+0x130/0x130
[  433.713698]  dump_header+0x27b/0xf72
[  433.717435]  ? pagefault_out_of_memory+0x197/0x197
[  433.722388]  ? __lock_acquire+0x62f/0x4c20
[  433.726639]  ? percpu_ref_get_many+0x240/0x240
[  433.731241]  ? print_usage_bug+0xc0/0xc0
[  433.735320]  ? zap_class+0x640/0x640
[  433.739043]  ? print_usage_bug+0xc0/0xc0
[  433.743118]  ? print_usage_bug+0xc0/0xc0
[  433.747188]  ? zap_class+0x640/0x640
[  433.750917]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.756471]  ? find_held_lock+0x36/0x1c0
[  433.760550]  ? mark_held_locks+0xc7/0x130
[  433.764716]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  433.769834]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  433.774952]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  433.779564]  ? trace_hardirqs_on+0xbd/0x310
[  433.783897]  ? kasan_check_read+0x11/0x20
[  433.788053]  ? ___ratelimit+0x3b4/0x672
[  433.792061]  ? trace_hardirqs_off_caller+0x310/0x310
[  433.797182]  ? trace_hardirqs_on+0x310/0x310
[  433.801606]  ? lock_downgrade+0x900/0x900
[  433.805773]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  433.810891]  ? ___ratelimit+0x3b9/0x672
[  433.814881]  ? idr_get_free+0xf70/0xf70
[  433.818866]  ? find_held_lock+0x36/0x1c0
[  433.822951]  oom_kill_process.cold.27+0x10/0x903
[  433.827721]  ? zap_class+0x640/0x640
[  433.831447]  ? check_preemption_disabled+0x48/0x280
[  433.836479]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  433.841429]  ? kasan_check_read+0x11/0x20
[  433.845592]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  433.850893]  ? oom_evaluate_task+0x540/0x540
[  433.855321]  ? find_held_lock+0x36/0x1c0
[  433.859406]  ? out_of_memory+0x974/0x1430
[  433.863579]  ? lock_downgrade+0x900/0x900
[  433.867746]  ? check_preemption_disabled+0x48/0x280
[  433.872781]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  433.877728]  ? kasan_check_read+0x11/0x20
[  433.881892]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  433.887191]  ? rcu_softirq_qs+0x20/0x20
[  433.891181]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  433.896737]  ? oom_evaluate_task+0x302/0x540
[  433.901164]  out_of_memory+0xa84/0x1430
[  433.905166]  ? oom_killer_disable+0x3a0/0x3a0
[  433.909676]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  433.914624]  ? __ww_mutex_check_waiters+0x160/0x160
[  433.919667]  __alloc_pages_slowpath+0x232c/0x2de0
[  433.924553]  ? warn_alloc+0x120/0x120
[  433.928361]  ? mark_held_locks+0x130/0x130
[  433.932618]  ? find_get_entry+0xaae/0x1120
[  433.936885]  ? filemap_map_pages+0x1a20/0x1a20
[  433.941478]  ? zap_class+0x640/0x640
[  433.945213]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.950770]  ? check_preemption_disabled+0x48/0x280
[  433.955801]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  433.961355]  ? should_fail+0x22d/0xd01
[  433.965261]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  433.970390]  ? zap_class+0x640/0x640
[  433.974140]  ? __lock_is_held+0xb5/0x140
[  433.978231]  ? mark_held_locks+0x130/0x130
[  433.982485]  ? lock_release+0xa00/0xa00
[  433.986471]  ? perf_trace_sched_process_exec+0x860/0x860
[  433.991936]  ? xa_load+0x2ba/0x460
[  433.995485]  ? lock_downgrade+0x900/0x900
[  433.999646]  ? __might_sleep+0x95/0x190
[  434.003636]  __alloc_pages_nodemask+0xad8/0xea0
[  434.008397]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  434.013443]  ? __page_cache_alloc+0x191/0x5c0
[  434.017946]  ? xa_load+0x2e1/0x460
[  434.021494]  ? xa_clear_mark+0x40/0x40
[  434.025391]  ? zap_class+0x640/0x640
[  434.029122]  ? zap_class+0x640/0x640
[  434.032846]  ? zap_class+0x640/0x640
[  434.036571]  ? __do_page_cache_readahead+0x663/0x810
[  434.041692]  ? find_held_lock+0x36/0x1c0
[  434.045768]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  434.051324]  alloc_pages_current+0x173/0x350
[  434.055748]  __page_cache_alloc+0x38c/0x5c0
[  434.060083]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  434.065024]  ? kasan_check_read+0x11/0x20
[  434.069191]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  434.074484]  ? generic_perform_write+0x6a0/0x6a0
[  434.079259]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  434.084807]  ? check_preemption_disabled+0x48/0x280
[  434.089837]  filemap_fault+0x1595/0x25f0
[  434.093919]  ? __lock_page_or_retry+0xa00/0xa00
[  434.098600]  ? mark_held_locks+0x130/0x130
[  434.102853]  ? filemap_map_pages+0xd6b/0x1a20
[  434.107358]  ? lock_downgrade+0x900/0x900
[  434.111515]  ? check_preemption_disabled+0x48/0x280
[  434.116547]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  434.121487]  ? kasan_check_read+0x11/0x20
[  434.125645]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  434.130935]  ? rcu_softirq_qs+0x20/0x20
[  434.134935]  ? filemap_map_pages+0xd92/0x1a20
[  434.139454]  ? find_get_entries_tag+0x1400/0x1400
[  434.144308]  ? debug_object_destroy+0x2b0/0x2b0
[  434.148990]  ? lock_pi_update_atomic+0x150/0x150
[  434.153753]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.159338]  ? lock_acquire+0x1ed/0x520
[  434.163326]  ? ext4_filemap_fault+0x7a/0xad
[  434.167661]  ? lock_release+0xa00/0xa00
[  434.171642]  ? perf_trace_sched_process_exec+0x860/0x860
[  434.177109]  ? print_usage_bug+0xc0/0xc0
[  434.181179]  ? print_usage_bug+0xc0/0xc0
[  434.185262]  ? down_read+0x8d/0x120
[  434.188892]  ? ext4_filemap_fault+0x7a/0xad
[  434.193241]  ? __down_interruptible+0x700/0x700
[  434.197933]  ext4_filemap_fault+0x82/0xad
[  434.202097]  __do_fault+0x100/0x6b0
[  434.205727]  ? find_held_lock+0x36/0x1c0
[  434.209799]  ? pmd_devmap_trans_unstable+0x220/0x220
[  434.214924]  ? mark_held_locks+0x130/0x130
[  434.219168]  ? mark_held_locks+0x130/0x130
[  434.223412]  ? debug_smp_processor_id+0x1c/0x20
[  434.228103]  ? perf_trace_lock+0x14d/0x7a0
[  434.232364]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  434.237918]  __handle_mm_fault+0x3ea0/0x5be0
[  434.242349]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  434.247204]  ? lock_is_held_type+0x210/0x210
[  434.251623]  ? __switch_to_asm+0x34/0x70
[  434.255700]  ? __switch_to_asm+0x34/0x70
[  434.259800]  ? zap_class+0x640/0x640
[  434.263522]  ? zap_class+0x640/0x640
[  434.267238]  ? __x64_sys_futex+0x53e/0x6a0
[  434.271485]  ? find_held_lock+0x36/0x1c0
[  434.275565]  ? handle_mm_fault+0x42a/0xc70
[  434.279808]  ? lock_downgrade+0x900/0x900
[  434.283968]  ? check_preemption_disabled+0x48/0x280
[  434.289003]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  434.293957]  ? kasan_check_read+0x11/0x20
[  434.298116]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  434.303403]  ? rcu_softirq_qs+0x20/0x20
[  434.307391]  ? trace_hardirqs_off_caller+0x310/0x310
[  434.312703]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  434.318263]  ? check_preemption_disabled+0x48/0x280
[  434.323309]  handle_mm_fault+0x54f/0xc70
[  434.327393]  ? __handle_mm_fault+0x5be0/0x5be0
[  434.332002]  ? find_vma+0x34/0x190
[  434.335565]  __do_page_fault+0x5e8/0xe60
[  434.339643]  ? trace_hardirqs_off+0xb8/0x310
[  434.344090]  do_page_fault+0xf2/0x7e0
[  434.347998]  ? vmalloc_sync_all+0x30/0x30
[  434.352163]  ? error_entry+0x70/0xd0
[  434.355888]  ? trace_hardirqs_off_caller+0xbb/0x310
[  434.360928]  ? trace_hardirqs_on_caller+0xc0/0x310
[  434.365876]  ? syscall_return_slowpath+0x5e0/0x5e0
[  434.370817]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  434.375689]  ? trace_hardirqs_on_caller+0x310/0x310
[  434.380721]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  434.386191]  ? prepare_exit_to_usermode+0x291/0x3b0
[  434.391221]  ? page_fault+0x8/0x30
[  434.394775]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  434.399635]  ? page_fault+0x8/0x30
[  434.403183]  page_fault+0x1e/0x30
[  434.406638] RIP: 0033:0x45ddf3
[  434.409850] Code: Bad RIP value.
[  434.413217] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  434.418587] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  434.425866] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  434.433152] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  434.440445] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  434.447726] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  434.455029] warn_alloc_show_mem: 1 callbacks suppressed
[  434.455042] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  434.455044] Mem-Info:
[  434.455085] active_anon:45985 inactive_anon:296 isolated_anon:0
[  434.455085]  active_file:15 inactive_file:8 isolated_file:0
[  434.455085]  unevictable:0 dirty:0 writeback:0 unstable:0
[  434.455085]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  434.455085]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  434.455085]  free:13771 free_pcp:249 free_cma:0
[  434.460429] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  434.460439] Call Trace:
[  434.467823] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  434.470229]  <IRQ>
[  434.503021] 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
[  434.512397]  dump_stack+0x244/0x39d
[  434.514957] lowmem_reserve[]: 0 2818 6321 6321
[  434.542645]  ? dump_stack_print_info.cold.1+0x20/0x20
[  434.544771] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  434.570911]  warn_alloc.cold.116+0xb7/0x1bd
[  434.574533] lowmem_reserve[]: 0 0 3503 3503
[  434.579121]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  434.584287] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  434.611807]  ? lock_downgrade+0x900/0x900
[  434.616110] lowmem_reserve[]: 0 0 0 0
[  434.620439]  ? trace_hardirqs_off+0xb8/0x310
[  434.625264] 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
[  434.654270]  ? trace_hardirqs_off+0xb8/0x310
[  434.658402] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  434.662210]  __alloc_pages_slowpath+0x2651/0x2de0
[  434.666588] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  434.680155]  ? warn_alloc+0x120/0x120
[  434.684534] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  434.699630]  ? warn_alloc+0x120/0x120
[  434.704485] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  434.719935]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  434.723710] 376 total pagecache pages
[  434.732588]  ? warn_alloc+0x120/0x120
[  434.736380] 0 pages in swap cache
[  434.744962]  ? print_usage_bug+0xc0/0xc0
[  434.749965] Swap cache stats: add 0, delete 0, find 0/0
[  434.753767]  ? print_usage_bug+0xc0/0xc0
[  434.757545] Free swap  = 0kB
[  434.761000]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  434.765029] Total swap = 0kB
[  434.765038] 1965979 pages RAM
[  434.770425]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  434.774456] 0 pages HighMem/MovableOnly
[  434.774465] 342854 pages reserved
[  434.777489]  ? should_fail+0x22d/0xd01
[  434.782665] 0 pages cma reserved
[  434.785692]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  434.788830] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  434.794314]  ? __lock_acquire+0x62f/0x4c20
[  434.798379] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  434.801719]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  434.805587] syz-fuzzer cpuset=/ mems_allowed=0
[  434.808957]  ? should_fail+0x22d/0xd01
[  434.848571]  ? mark_held_locks+0x130/0x130
[  434.852830]  ? mark_held_locks+0x130/0x130
[  434.857089]  ? print_usage_bug+0xc0/0xc0
[  434.861189]  ? find_held_lock+0x36/0x1c0
[  434.865270]  ? zap_class+0x640/0x640
[  434.869007]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.874578]  ? check_preemption_disabled+0x48/0x280
[  434.879625]  ? __lock_is_held+0xb5/0x140
[  434.883707]  __alloc_pages_nodemask+0xad8/0xea0
[  434.888395]  ? zap_class+0x640/0x640
[  434.892132]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  434.897187]  ? find_held_lock+0x36/0x1c0
[  434.901276]  ? ____cache_alloc_node+0x1c7/0x1e0
[  434.905964]  ? lock_downgrade+0x900/0x900
[  434.910133]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.915697]  cache_grow_begin+0xa5/0x8c0
[  434.919778]  ? do_raw_spin_unlock+0xa7/0x330
[  434.924210]  fallback_alloc+0x204/0x2e0
[  434.928209]  ____cache_alloc_node+0x1c7/0x1e0
[  434.932728]  kmem_cache_alloc_node+0xe3/0x730
[  434.937248]  ? mark_held_locks+0xc7/0x130
[  434.941441]  __alloc_skb+0x119/0x770
[  434.945176]  ? netdev_alloc_frag+0x1f0/0x1f0
[  434.949598]  ? do_raw_spin_trylock+0x270/0x270
[  434.954194]  ? kmem_cache_alloc_trace+0x353/0x750
[  434.959078]  ? queue_work_on+0x12c/0x1e0
[  434.963162]  ? switchdev_port_obj_del+0xe3/0x450
[  434.967941]  ? switchdev_trans_item_enqueue+0x260/0x260
[  434.973337]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  434.978372]  __br_mdb_notify+0x4ff/0x15d0
[  434.982547]  ? __br_mdb_add+0x7f0/0x7f0
[  434.986541]  ? zap_class+0x640/0x640
[  434.990277]  ? br_multicast_group_expired+0x96/0x610
[  434.995412]  ? lock_downgrade+0x900/0x900
[  434.999588]  br_mdb_notify+0x310/0x410
[  435.003492]  ? br_mdb_dump+0x27b0/0x27b0
[  435.007587]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.013153]  br_multicast_group_expired+0x1bc/0x610
[  435.018187]  ? br_mdb_free+0x80/0x80
[  435.021929]  call_timer_fn+0x272/0x920
[  435.025830]  ? br_mdb_free+0x80/0x80
[  435.029558]  ? process_timeout+0x40/0x40
[  435.033640]  ? __run_timers+0x7da/0xc70
[  435.037631]  ? _raw_spin_unlock_irq+0x27/0x80
[  435.042138]  ? _raw_spin_unlock_irq+0x27/0x80
[  435.046644]  ? br_mdb_free+0x80/0x80
[  435.050375]  ? lockdep_hardirqs_on+0x296/0x5b0
[  435.054986]  ? trace_hardirqs_on+0xbd/0x310
[  435.059325]  ? kasan_check_read+0x11/0x20
[  435.063499]  ? __run_timers+0x7da/0xc70
[  435.067492]  ? trace_hardirqs_off_caller+0x310/0x310
[  435.072626]  ? br_mdb_free+0x80/0x80
[  435.076368]  ? br_mdb_free+0x80/0x80
[  435.080099]  __run_timers+0x7e5/0xc70
[  435.083928]  ? timer_fixup_init+0x70/0x70
[  435.088109]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  435.093147]  ? zap_class+0x640/0x640
[  435.096880]  ? enqueue_hrtimer+0x1a5/0x560
[  435.101133]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  435.106341]  ? find_held_lock+0x36/0x1c0
[  435.110420]  ? zap_class+0x640/0x640
[  435.114164]  ? pvclock_read_flags+0x160/0x160
[  435.118677]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.124235]  ? check_preemption_disabled+0x48/0x280
[  435.129282]  ? __lock_is_held+0xb5/0x140
[  435.133365]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.139017]  ? check_preemption_disabled+0x48/0x280
[  435.144063]  run_timer_softirq+0x52/0xb0
[  435.148142]  ? rcu_read_lock_sched_held+0x14f/0x180
[  435.153184]  __do_softirq+0x308/0xb7e
[  435.157001]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  435.161510]  ? lock_downgrade+0x900/0x900
[  435.165677]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  435.170801]  ? pvclock_read_flags+0x160/0x160
[  435.175316]  ? lapic_next_event+0x5a/0x90
[  435.179827]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.185387]  ? kvm_clock_read+0x18/0x30
[  435.189377]  ? kvm_sched_clock_read+0x9/0x20
[  435.193799]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.199353]  ? check_preemption_disabled+0x48/0x280
[  435.204397]  irq_exit+0x17f/0x1c0
[  435.207885]  smp_apic_timer_interrupt+0x1cb/0x760
[  435.212744]  ? smp_reschedule_interrupt+0x109/0x650
[  435.217785]  ? smp_call_function_single_interrupt+0x650/0x650
[  435.223688]  ? interrupt_entry+0xb5/0xc0
[  435.227765]  ? trace_hardirqs_off_caller+0xbb/0x310
[  435.232797]  ? trace_hardirqs_off_caller+0xbb/0x310
[  435.237826]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  435.242686]  ? trace_hardirqs_on_caller+0x310/0x310
[  435.247717]  ? trace_hardirqs_on_caller+0x310/0x310
[  435.252757]  ? task_prio+0x50/0x50
[  435.256318]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.261871]  ? check_preemption_disabled+0x48/0x280
[  435.266909]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  435.271780]  apic_timer_interrupt+0xf/0x20
[  435.276018]  </IRQ>
[  435.278269] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  435.283221] 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 42 f3
[  435.302138] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  435.309865] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  435.317666] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  435.324957] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  435.332236] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  435.339529] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  435.346871]  skb_clone+0x1bb/0x500
[  435.350428]  ? skb_split+0x11e0/0x11e0
[  435.354331]  ? check_preemption_disabled+0x48/0x280
[  435.359387]  ? __this_cpu_preempt_check+0x1c/0x20
[  435.364244]  ? __bpf_redirect+0x55b/0xb60
[  435.368403]  ? __switch_to_asm+0x34/0x70
[  435.372474]  ? __switch_to_asm+0x40/0x70
[  435.376550]  bpf_clone_redirect+0xb9/0x490
[  435.380805]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  435.385841]  ? __sched_text_start+0x8/0x8
[  435.390021]  ? find_held_lock+0x36/0x1c0
[  435.394113]  ? lock_acquire+0x1ed/0x520
[  435.398103]  ? bpf_test_run+0x3cb/0x780
[  435.402101]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.407659]  ? check_preemption_disabled+0x48/0x280
[  435.412696]  ? kasan_check_read+0x11/0x20
[  435.416854]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  435.422143]  ? rcu_softirq_qs+0x20/0x20
[  435.426133]  ? preempt_schedule+0x4d/0x60
[  435.430291]  ? ___preempt_schedule+0x16/0x18
[  435.434716]  ? bpf_test_run+0x25d/0x780
[  435.438709]  ? netlink_diag_dump+0x2a0/0x2a0
[  435.443131]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  435.448683]  ? bpf_test_init.isra.10+0x70/0x100
[  435.453366]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  435.458145]  ? bpf_test_finish.isra.9+0x260/0x260
[  435.462995]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  435.468543]  ? fput+0x130/0x1a0
[  435.471839]  ? __bpf_prog_get+0x9b/0x290
[  435.475911]  ? bpf_test_finish.isra.9+0x260/0x260
[  435.480773]  ? bpf_prog_test_run+0x130/0x1a0
[  435.485193]  ? __x64_sys_bpf+0x3db/0x520
[  435.489264]  ? bpf_prog_get+0x20/0x20
[  435.493105]  ? do_syscall_64+0x1b9/0x820
[  435.497176]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  435.502556]  ? syscall_return_slowpath+0x5e0/0x5e0
[  435.507503]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  435.512374]  ? trace_hardirqs_on_caller+0x310/0x310
[  435.517409]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  435.522447]  ? prepare_exit_to_usermode+0x291/0x3b0
[  435.527490]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  435.532354]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  435.537751] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  435.537948] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  435.544775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  435.544785] Call Trace:
[  435.555279] syz-executor0 cpuset=syz0 mems_allowed=0
[  435.564635]  <IRQ>
[  435.574453]  dump_stack+0x244/0x39d
[  435.578101]  ? dump_stack_print_info.cold.1+0x20/0x20
[  435.583312]  warn_alloc.cold.116+0xb7/0x1bd
[  435.587645]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  435.592501]  ? lock_downgrade+0x900/0x900
[  435.596662]  ? trace_hardirqs_off+0xb8/0x310
[  435.601090]  ? trace_hardirqs_off+0xb8/0x310
[  435.605513]  __alloc_pages_slowpath+0x2651/0x2de0
[  435.610391]  ? warn_alloc+0x120/0x120
[  435.614206]  ? print_usage_bug+0xc0/0xc0
[  435.618277]  ? warn_alloc+0x120/0x120
[  435.622089]  ? warn_alloc+0x120/0x120
[  435.625894]  ? print_usage_bug+0xc0/0xc0
[  435.629963]  ? kvm_clock_read+0x18/0x30
[  435.633940]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  435.638963]  ? print_usage_bug+0xc0/0xc0
[  435.643029]  ? __lock_acquire+0x62f/0x4c20
[  435.647286]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  435.652831]  ? should_fail+0x22d/0xd01
[  435.656723]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  435.662014]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  435.667136]  ? __lock_acquire+0x62f/0x4c20
[  435.671382]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  435.676495]  ? __lock_acquire+0x62f/0x4c20
[  435.680741]  ? should_fail+0x22d/0xd01
[  435.684629]  ? rcu_irq_exit+0x1a2/0x390
[  435.688619]  ? mark_held_locks+0x130/0x130
[  435.692865]  ? mark_held_locks+0x130/0x130
[  435.697111]  ? mark_held_locks+0xc7/0x130
[  435.701269]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  435.706294]  ? zap_class+0x640/0x640
[  435.710015]  ? print_usage_bug+0xc0/0xc0
[  435.714094]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.719641]  ? check_preemption_disabled+0x48/0x280
[  435.724676]  ? __lock_is_held+0xb5/0x140
[  435.728751]  __alloc_pages_nodemask+0xad8/0xea0
[  435.733457]  ? zap_class+0x640/0x640
[  435.737187]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  435.742225]  ? find_held_lock+0x36/0x1c0
[  435.746317]  ? ____cache_alloc_node+0x1c7/0x1e0
[  435.751000]  ? lock_downgrade+0x900/0x900
[  435.755164]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.760716]  cache_grow_begin+0xa5/0x8c0
[  435.764783]  ? do_raw_spin_unlock+0xa7/0x330
[  435.769200]  fallback_alloc+0x204/0x2e0
[  435.773184]  ____cache_alloc_node+0x1c7/0x1e0
[  435.777688]  kmem_cache_alloc_node+0xe3/0x730
[  435.782188]  ? ipv6_get_ifaddr+0x42e/0x620
[  435.786443]  __alloc_skb+0x119/0x770
[  435.790163]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  435.795456]  ? netdev_alloc_frag+0x1f0/0x1f0
[  435.799871]  ? lock_downgrade+0x900/0x900
[  435.804033]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.809582]  ? refcount_sub_and_test_checked+0x203/0x310
[  435.815084]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  435.820544]  ? addrconf_rs_timer+0x690/0x690
[  435.824973]  ndisc_alloc_skb+0x144/0x340
[  435.829068]  ndisc_send_rs+0x331/0x6e0
[  435.832967]  addrconf_rs_timer+0x314/0x690
[  435.837211]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  435.841465]  call_timer_fn+0x272/0x920
[  435.845361]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  435.849604]  ? process_timeout+0x40/0x40
[  435.853682]  ? mark_held_locks+0xc7/0x130
[  435.857839]  ? _raw_spin_unlock_irq+0x27/0x80
[  435.862360]  ? _raw_spin_unlock_irq+0x27/0x80
[  435.866862]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  435.871108]  ? lockdep_hardirqs_on+0x296/0x5b0
[  435.875696]  ? trace_hardirqs_on+0xbd/0x310
[  435.880022]  ? kasan_check_read+0x11/0x20
[  435.884181]  ? __run_timers+0x7da/0xc70
[  435.888166]  ? trace_hardirqs_off_caller+0x310/0x310
[  435.893285]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  435.897530]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  435.901770]  __run_timers+0x7e5/0xc70
[  435.905589]  ? timer_fixup_init+0x70/0x70
[  435.909743]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  435.914769]  ? zap_class+0x640/0x640
[  435.918490]  ? print_usage_bug+0xc0/0xc0
[  435.922557]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  435.927767]  ? find_held_lock+0x36/0x1c0
[  435.931836]  ? zap_class+0x640/0x640
[  435.935565]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.941124]  ? check_preemption_disabled+0x48/0x280
[  435.946177]  ? __lock_is_held+0xb5/0x140
[  435.950249]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.955799]  ? check_preemption_disabled+0x48/0x280
[  435.960827]  run_timer_softirq+0x52/0xb0
[  435.964893]  ? rcu_read_lock_sched_held+0x14f/0x180
[  435.969917]  __do_softirq+0x308/0xb7e
[  435.973726]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  435.978239]  ? lock_downgrade+0x900/0x900
[  435.982398]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  435.987524]  ? pvclock_read_flags+0x160/0x160
[  435.992029]  ? lapic_next_event+0x5a/0x90
[  435.996195]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.001744]  ? kvm_clock_read+0x18/0x30
[  436.005721]  ? kvm_sched_clock_read+0x9/0x20
[  436.010139]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.015687]  ? check_preemption_disabled+0x48/0x280
[  436.020718]  irq_exit+0x17f/0x1c0
[  436.024180]  smp_apic_timer_interrupt+0x1cb/0x760
[  436.029027]  ? smp_reschedule_interrupt+0x109/0x650
[  436.034077]  ? smp_call_function_single_interrupt+0x650/0x650
[  436.039972]  ? interrupt_entry+0xb5/0xc0
[  436.044043]  ? trace_hardirqs_off_caller+0xbb/0x310
[  436.049093]  ? trace_hardirqs_off_caller+0xbb/0x310
[  436.054119]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  436.058974]  ? trace_hardirqs_on_caller+0x310/0x310
[  436.063997]  ? trace_hardirqs_on_caller+0x310/0x310
[  436.069033]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  436.073902]  apic_timer_interrupt+0xf/0x20
[  436.078133]  </IRQ>
[  436.080378] RIP: 0010:dump_stack+0x358/0x39d
[  436.084797] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  436.103802] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  436.111535] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  436.118817] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  436.126102] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  436.133384] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  436.140673] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  436.147976]  ? dump_stack+0x34f/0x39d
[  436.151797]  ? dump_stack_print_info.cold.1+0x20/0x20
[  436.156999]  ? mark_held_locks+0x130/0x130
[  436.161238]  ? mark_held_locks+0x130/0x130
[  436.165486]  dump_header+0x27b/0xf72
[  436.169228]  ? pagefault_out_of_memory+0x197/0x197
[  436.174175]  ? __lock_acquire+0x62f/0x4c20
[  436.178415]  ? percpu_ref_get_many+0x240/0x240
[  436.183017]  ? print_usage_bug+0xc0/0xc0
[  436.187096]  ? zap_class+0x640/0x640
[  436.190816]  ? print_usage_bug+0xc0/0xc0
[  436.194880]  ? print_usage_bug+0xc0/0xc0
[  436.198950]  ? zap_class+0x640/0x640
[  436.202671]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.208220]  ? find_held_lock+0x36/0x1c0
[  436.212295]  ? mark_held_locks+0xc7/0x130
[  436.216460]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  436.221571]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  436.226681]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  436.231277]  ? trace_hardirqs_on+0xbd/0x310
[  436.235607]  ? kasan_check_read+0x11/0x20
[  436.239762]  ? ___ratelimit+0x3b4/0x672
[  436.243742]  ? trace_hardirqs_off_caller+0x310/0x310
[  436.248868]  ? trace_hardirqs_on+0x310/0x310
[  436.253290]  ? lock_downgrade+0x900/0x900
[  436.257458]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  436.262573]  ? ___ratelimit+0x3b9/0x672
[  436.266555]  ? idr_get_free+0xf70/0xf70
[  436.270537]  ? find_held_lock+0x36/0x1c0
[  436.274615]  oom_kill_process.cold.27+0x10/0x903
[  436.279406]  ? zap_class+0x640/0x640
[  436.283151]  ? check_preemption_disabled+0x48/0x280
[  436.288188]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  436.293132]  ? kasan_check_read+0x11/0x20
[  436.297286]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  436.302573]  ? oom_evaluate_task+0x540/0x540
[  436.306989]  ? find_held_lock+0x36/0x1c0
[  436.311217]  ? out_of_memory+0x974/0x1430
[  436.315375]  ? lock_downgrade+0x900/0x900
[  436.319528]  ? check_preemption_disabled+0x48/0x280
[  436.324557]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  436.329503]  ? kasan_check_read+0x11/0x20
[  436.333663]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  436.338950]  ? rcu_softirq_qs+0x20/0x20
[  436.342938]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.348487]  ? oom_evaluate_task+0x302/0x540
[  436.352907]  out_of_memory+0xa84/0x1430
[  436.356902]  ? oom_killer_disable+0x3a0/0x3a0
[  436.361409]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  436.366367]  ? __ww_mutex_check_waiters+0x160/0x160
[  436.371412]  __alloc_pages_slowpath+0x232c/0x2de0
[  436.376301]  ? warn_alloc+0x120/0x120
[  436.380106]  ? mark_held_locks+0x130/0x130
[  436.384354]  ? find_get_entry+0xaae/0x1120
[  436.388608]  ? filemap_map_pages+0x1a20/0x1a20
[  436.393203]  ? zap_class+0x640/0x640
[  436.396929]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.402489]  ? check_preemption_disabled+0x48/0x280
[  436.407516]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.413073]  ? should_fail+0x22d/0xd01
[  436.416974]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  436.422092]  ? zap_class+0x640/0x640
[  436.425835]  ? __lock_is_held+0xb5/0x140
[  436.429920]  ? mark_held_locks+0x130/0x130
[  436.434167]  ? lock_release+0xa00/0xa00
[  436.438150]  ? perf_trace_sched_process_exec+0x860/0x860
[  436.443611]  ? xa_load+0x2ba/0x460
[  436.447162]  ? lock_downgrade+0x900/0x900
[  436.451320]  ? __might_sleep+0x95/0x190
[  436.455304]  __alloc_pages_nodemask+0xad8/0xea0
[  436.459988]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  436.465008]  ? __page_cache_alloc+0x191/0x5c0
[  436.469502]  ? xa_load+0x2e1/0x460
[  436.473069]  ? xa_clear_mark+0x40/0x40
[  436.476971]  ? zap_class+0x640/0x640
[  436.480698]  ? zap_class+0x640/0x640
[  436.484417]  ? zap_class+0x640/0x640
[  436.488140]  ? __do_page_cache_readahead+0x663/0x810
[  436.493257]  ? find_held_lock+0x36/0x1c0
[  436.497331]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  436.502880]  alloc_pages_current+0x173/0x350
[  436.507305]  __page_cache_alloc+0x38c/0x5c0
[  436.511635]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  436.516572]  ? kasan_check_read+0x11/0x20
[  436.520726]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  436.526010]  ? generic_perform_write+0x6a0/0x6a0
[  436.530775]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.536322]  ? check_preemption_disabled+0x48/0x280
[  436.541353]  filemap_fault+0x1595/0x25f0
[  436.545434]  ? __lock_page_or_retry+0xa00/0xa00
[  436.550116]  ? mark_held_locks+0x130/0x130
[  436.554364]  ? filemap_map_pages+0xd6b/0x1a20
[  436.558885]  ? lock_downgrade+0x900/0x900
[  436.563053]  ? check_preemption_disabled+0x48/0x280
[  436.568095]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  436.573031]  ? kasan_check_read+0x11/0x20
[  436.577189]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  436.582468]  ? rcu_softirq_qs+0x20/0x20
[  436.586463]  ? filemap_map_pages+0xd92/0x1a20
[  436.590975]  ? find_get_entries_tag+0x1400/0x1400
[  436.595826]  ? debug_object_destroy+0x2b0/0x2b0
[  436.600504]  ? lock_pi_update_atomic+0x150/0x150
[  436.605274]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.610830]  ? lock_acquire+0x1ed/0x520
[  436.614807]  ? ext4_filemap_fault+0x7a/0xad
[  436.619138]  ? lock_release+0xa00/0xa00
[  436.623113]  ? perf_trace_sched_process_exec+0x860/0x860
[  436.628572]  ? print_usage_bug+0xc0/0xc0
[  436.632638]  ? print_usage_bug+0xc0/0xc0
[  436.636714]  ? down_read+0x8d/0x120
[  436.640341]  ? ext4_filemap_fault+0x7a/0xad
[  436.644670]  ? __down_interruptible+0x700/0x700
[  436.649357]  ext4_filemap_fault+0x82/0xad
[  436.653528]  __do_fault+0x100/0x6b0
[  436.657161]  ? find_held_lock+0x36/0x1c0
[  436.661231]  ? pmd_devmap_trans_unstable+0x220/0x220
[  436.666344]  ? mark_held_locks+0x130/0x130
[  436.670583]  ? mark_held_locks+0x130/0x130
[  436.674826]  ? debug_smp_processor_id+0x1c/0x20
[  436.679501]  ? perf_trace_lock+0x14d/0x7a0
[  436.683750]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.689304]  __handle_mm_fault+0x3ea0/0x5be0
[  436.693731]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  436.698583]  ? lock_is_held_type+0x210/0x210
[  436.703001]  ? __switch_to_asm+0x34/0x70
[  436.707082]  ? __switch_to_asm+0x34/0x70
[  436.711167]  ? zap_class+0x640/0x640
[  436.714881]  ? zap_class+0x640/0x640
[  436.718598]  ? __x64_sys_futex+0x53e/0x6a0
[  436.722853]  ? find_held_lock+0x36/0x1c0
[  436.726930]  ? handle_mm_fault+0x42a/0xc70
[  436.731177]  ? lock_downgrade+0x900/0x900
[  436.735336]  ? check_preemption_disabled+0x48/0x280
[  436.740367]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  436.745302]  ? kasan_check_read+0x11/0x20
[  436.749461]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  436.754747]  ? rcu_softirq_qs+0x20/0x20
[  436.758729]  ? trace_hardirqs_off_caller+0x310/0x310
[  436.763845]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.769394]  ? check_preemption_disabled+0x48/0x280
[  436.774439]  handle_mm_fault+0x54f/0xc70
[  436.778509]  ? __handle_mm_fault+0x5be0/0x5be0
[  436.783107]  ? find_vma+0x34/0x190
[  436.786658]  __do_page_fault+0x5e8/0xe60
[  436.790722]  ? trace_hardirqs_off+0xb8/0x310
[  436.795166]  do_page_fault+0xf2/0x7e0
[  436.798974]  ? vmalloc_sync_all+0x30/0x30
[  436.803126]  ? error_entry+0x70/0xd0
[  436.806846]  ? trace_hardirqs_off_caller+0xbb/0x310
[  436.811870]  ? trace_hardirqs_on_caller+0xc0/0x310
[  436.816808]  ? syscall_return_slowpath+0x5e0/0x5e0
[  436.821744]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  436.826602]  ? trace_hardirqs_on_caller+0x310/0x310
[  436.831624]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  436.837095]  ? prepare_exit_to_usermode+0x291/0x3b0
[  436.842120]  ? page_fault+0x8/0x30
[  436.845668]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  436.850527]  ? page_fault+0x8/0x30
[  436.854081]  page_fault+0x1e/0x30
[  436.857536] RIP: 0033:0x45ddf3
[  436.860742] Code: Bad RIP value.
[  436.864107] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  436.869473] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  436.876753] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  436.884046] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  436.891339] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  436.898614] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  436.905917] warn_alloc_show_mem: 1 callbacks suppressed
[  436.905935] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  436.905937] Mem-Info:
[  436.905968] active_anon:45985 inactive_anon:296 isolated_anon:0
[  436.905968]  active_file:15 inactive_file:8 isolated_file:0
[  436.905968]  unevictable:0 dirty:0 writeback:0 unstable:0
[  436.905968]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  436.905968]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  436.905968]  free:13771 free_pcp:249 free_cma:0
[  436.911311] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  436.911321] Call Trace:
[  436.918789] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  436.921192]  <IRQ>
[  436.954005] 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
[  436.963381]  dump_stack+0x244/0x39d
[  436.966648] lowmem_reserve[]: 0 2818 6321 6321
[  436.994335]  ? dump_stack_print_info.cold.1+0x20/0x20
[  436.996460] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  437.022583]  warn_alloc.cold.116+0xb7/0x1bd
[  437.026188] lowmem_reserve[]: 0 0 3503 3503
[  437.030790]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  437.035960] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  437.063492]  ? lock_downgrade+0x900/0x900
[  437.067793] lowmem_reserve[]: 0 0 0 0
[  437.072135]  ? trace_hardirqs_off+0xb8/0x310
[  437.076945] 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
[  437.105939]  ? trace_hardirqs_off+0xb8/0x310
[  437.110075] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  437.113881]  __alloc_pages_slowpath+0x2651/0x2de0
[  437.118258] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  437.131810]  ? warn_alloc+0x120/0x120
[  437.136188] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  437.151280]  ? warn_alloc+0x120/0x120
[  437.156112] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  437.171549]  ? warn_alloc+0x120/0x120
[  437.175332] 376 total pagecache pages
[  437.184425]  ? print_usage_bug+0xc0/0xc0
[  437.188217] 0 pages in swap cache
[  437.196797]  ? print_usage_bug+0xc0/0xc0
[  437.200578] Swap cache stats: add 0, delete 0, find 0/0
[  437.204375]  ? mark_held_locks+0x130/0x130
[  437.208415] Free swap  = 0kB
[  437.211871]  ? trace_hardirqs_off+0xb8/0x310
[  437.215900] Total swap = 0kB
[  437.215909] 1965979 pages RAM
[  437.221277]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  437.225483] 0 pages HighMem/MovableOnly
[  437.228505]  ? should_fail+0x22d/0xd01
[  437.232881] 342854 pages reserved
[  437.232890] 0 pages cma reserved
[  437.235915]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  437.239052] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  437.244535]  ? __lock_acquire+0x62f/0x4c20
[  437.248622] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  437.252380]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  437.255814] syz-fuzzer cpuset=/ mems_allowed=0
[  437.259181]  ? should_fail+0x22d/0xd01
[  437.299294]  ? mark_held_locks+0x130/0x130
[  437.303549]  ? mark_held_locks+0x130/0x130
[  437.307817]  ? print_usage_bug+0xc0/0xc0
[  437.311903]  ? find_held_lock+0x36/0x1c0
[  437.315985]  ? zap_class+0x640/0x640
[  437.319715]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.325271]  ? check_preemption_disabled+0x48/0x280
[  437.330312]  ? __lock_is_held+0xb5/0x140
[  437.334395]  __alloc_pages_nodemask+0xad8/0xea0
[  437.339084]  ? zap_class+0x640/0x640
[  437.342830]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  437.347873]  ? find_held_lock+0x36/0x1c0
[  437.351958]  ? ____cache_alloc_node+0x1c7/0x1e0
[  437.356650]  ? lock_downgrade+0x900/0x900
[  437.360818]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.366375]  cache_grow_begin+0xa5/0x8c0
[  437.370450]  ? do_raw_spin_unlock+0xa7/0x330
[  437.374881]  fallback_alloc+0x204/0x2e0
[  437.378879]  ____cache_alloc_node+0x1c7/0x1e0
[  437.383398]  kmem_cache_alloc_node+0xe3/0x730
[  437.387908]  ? mark_held_locks+0xc7/0x130
[  437.392094]  __alloc_skb+0x119/0x770
[  437.395827]  ? netdev_alloc_frag+0x1f0/0x1f0
[  437.400244]  ? do_raw_spin_trylock+0x270/0x270
[  437.404838]  ? kmem_cache_alloc_trace+0x353/0x750
[  437.409694]  ? queue_work_on+0x12c/0x1e0
[  437.413770]  ? switchdev_port_obj_del+0xe3/0x450
[  437.418537]  ? switchdev_trans_item_enqueue+0x260/0x260
[  437.423910]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  437.429206]  ? rcu_softirq_qs+0x20/0x20
[  437.433196]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  437.438232]  __br_mdb_notify+0x4ff/0x15d0
[  437.442411]  ? __br_mdb_add+0x7f0/0x7f0
[  437.446413]  ? zap_class+0x640/0x640
[  437.450149]  ? br_multicast_group_expired+0x96/0x610
[  437.455274]  br_mdb_notify+0x310/0x410
[  437.459175]  ? br_mdb_dump+0x27b0/0x27b0
[  437.463269]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.468827]  br_multicast_group_expired+0x1bc/0x610
[  437.473864]  ? br_mdb_free+0x80/0x80
[  437.477600]  call_timer_fn+0x272/0x920
[  437.481498]  ? br_mdb_free+0x80/0x80
[  437.485222]  ? process_timeout+0x40/0x40
[  437.489299]  ? __run_timers+0x7da/0xc70
[  437.493287]  ? _raw_spin_unlock_irq+0x27/0x80
[  437.497790]  ? _raw_spin_unlock_irq+0x27/0x80
[  437.502296]  ? br_mdb_free+0x80/0x80
[  437.506025]  ? lockdep_hardirqs_on+0x296/0x5b0
[  437.510627]  ? trace_hardirqs_on+0xbd/0x310
[  437.514960]  ? kasan_check_read+0x11/0x20
[  437.519121]  ? __run_timers+0x7da/0xc70
[  437.523110]  ? trace_hardirqs_off_caller+0x310/0x310
[  437.528235]  ? br_mdb_free+0x80/0x80
[  437.531970]  ? br_mdb_free+0x80/0x80
[  437.535693]  __run_timers+0x7e5/0xc70
[  437.539517]  ? timer_fixup_init+0x70/0x70
[  437.543683]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  437.548713]  ? zap_class+0x640/0x640
[  437.552440]  ? enqueue_hrtimer+0x1a5/0x560
[  437.556686]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  437.561894]  ? find_held_lock+0x36/0x1c0
[  437.565996]  ? zap_class+0x640/0x640
[  437.569722]  ? pvclock_read_flags+0x160/0x160
[  437.574235]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.579784]  ? check_preemption_disabled+0x48/0x280
[  437.584824]  ? __lock_is_held+0xb5/0x140
[  437.588898]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.594462]  ? check_preemption_disabled+0x48/0x280
[  437.599502]  run_timer_softirq+0x52/0xb0
[  437.603575]  ? rcu_read_lock_sched_held+0x14f/0x180
[  437.608608]  __do_softirq+0x308/0xb7e
[  437.612430]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  437.616946]  ? lock_downgrade+0x900/0x900
[  437.621112]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  437.626235]  ? pvclock_read_flags+0x160/0x160
[  437.630747]  ? lapic_next_event+0x5a/0x90
[  437.634910]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.640470]  ? kvm_clock_read+0x18/0x30
[  437.644461]  ? kvm_sched_clock_read+0x9/0x20
[  437.648894]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.654450]  ? check_preemption_disabled+0x48/0x280
[  437.659492]  irq_exit+0x17f/0x1c0
[  437.662964]  smp_apic_timer_interrupt+0x1cb/0x760
[  437.667820]  ? smp_reschedule_interrupt+0x109/0x650
[  437.672851]  ? smp_call_function_single_interrupt+0x650/0x650
[  437.678751]  ? interrupt_entry+0xb5/0xc0
[  437.682833]  ? trace_hardirqs_off_caller+0xbb/0x310
[  437.687860]  ? trace_hardirqs_off_caller+0xbb/0x310
[  437.692890]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  437.697756]  ? trace_hardirqs_on_caller+0x310/0x310
[  437.702796]  ? trace_hardirqs_on_caller+0x310/0x310
[  437.707828]  ? task_prio+0x50/0x50
[  437.711380]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.716944]  ? check_preemption_disabled+0x48/0x280
[  437.722006]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  437.726865]  apic_timer_interrupt+0xf/0x20
[  437.731105]  </IRQ>
[  437.733355] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  437.738293] 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 42 f3
[  437.757205] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  437.764934] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  437.772221] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  437.779507] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  437.786790] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  437.794088] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  437.801415]  skb_clone+0x1bb/0x500
[  437.804972]  ? skb_split+0x11e0/0x11e0
[  437.808876]  ? check_preemption_disabled+0x48/0x280
[  437.813913]  ? __this_cpu_preempt_check+0x1c/0x20
[  437.818777]  ? __bpf_redirect+0x55b/0xb60
[  437.822945]  ? __switch_to_asm+0x34/0x70
[  437.827008]  ? __switch_to_asm+0x40/0x70
[  437.831089]  bpf_clone_redirect+0xb9/0x490
[  437.835346]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  437.840377]  ? __sched_text_start+0x8/0x8
[  437.844548]  ? find_held_lock+0x36/0x1c0
[  437.848628]  ? lock_acquire+0x1ed/0x520
[  437.852611]  ? bpf_test_run+0x3cb/0x780
[  437.856597]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.862145]  ? check_preemption_disabled+0x48/0x280
[  437.867179]  ? kasan_check_read+0x11/0x20
[  437.871338]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  437.876629]  ? rcu_softirq_qs+0x20/0x20
[  437.880613]  ? preempt_schedule+0x4d/0x60
[  437.884769]  ? ___preempt_schedule+0x16/0x18
[  437.889190]  ? bpf_test_run+0x25d/0x780
[  437.893183]  ? netlink_diag_dump+0x2a0/0x2a0
[  437.897612]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  437.903160]  ? bpf_test_init.isra.10+0x70/0x100
[  437.907949]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  437.912734]  ? bpf_test_finish.isra.9+0x260/0x260
[  437.917589]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  437.923141]  ? fput+0x130/0x1a0
[  437.926434]  ? __bpf_prog_get+0x9b/0x290
[  437.930512]  ? bpf_test_finish.isra.9+0x260/0x260
[  437.935369]  ? bpf_prog_test_run+0x130/0x1a0
[  437.939790]  ? __x64_sys_bpf+0x3db/0x520
[  437.943869]  ? bpf_prog_get+0x20/0x20
[  437.947705]  ? do_syscall_64+0x1b9/0x820
[  437.951779]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  437.957161]  ? syscall_return_slowpath+0x5e0/0x5e0
[  437.962109]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  437.966975]  ? trace_hardirqs_on_caller+0x310/0x310
[  437.972012]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  437.977047]  ? prepare_exit_to_usermode+0x291/0x3b0
[  437.982104]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  437.986973]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  437.992370] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  437.992522] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  437.999411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  437.999427] Call Trace:
[  438.009909] syz-executor0 cpuset=syz0 mems_allowed=0
[  438.019267]  <IRQ>
[  438.029096]  dump_stack+0x244/0x39d
[  438.032735]  ? dump_stack_print_info.cold.1+0x20/0x20
[  438.037946]  warn_alloc.cold.116+0xb7/0x1bd
[  438.042281]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  438.047136]  ? lock_downgrade+0x900/0x900
[  438.051299]  ? trace_hardirqs_off+0xb8/0x310
[  438.055717]  ? trace_hardirqs_off+0xb8/0x310
[  438.060140]  __alloc_pages_slowpath+0x2651/0x2de0
[  438.065021]  ? warn_alloc+0x120/0x120
[  438.068830]  ? print_usage_bug+0xc0/0xc0
[  438.072895]  ? warn_alloc+0x120/0x120
[  438.076702]  ? warn_alloc+0x120/0x120
[  438.080507]  ? print_usage_bug+0xc0/0xc0
[  438.084570]  ? kvm_clock_read+0x18/0x30
[  438.088550]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  438.093578]  ? print_usage_bug+0xc0/0xc0
[  438.097645]  ? __lock_acquire+0x62f/0x4c20
[  438.101894]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  438.107443]  ? should_fail+0x22d/0xd01
[  438.111334]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  438.116626]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  438.121741]  ? __lock_acquire+0x62f/0x4c20
[  438.125987]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  438.131105]  ? __lock_acquire+0x62f/0x4c20
[  438.135357]  ? should_fail+0x22d/0xd01
[  438.139246]  ? rcu_irq_exit+0x1a2/0x390
[  438.143235]  ? mark_held_locks+0x130/0x130
[  438.147482]  ? mark_held_locks+0x130/0x130
[  438.151728]  ? mark_held_locks+0xc7/0x130
[  438.155882]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  438.160908]  ? zap_class+0x640/0x640
[  438.164631]  ? print_usage_bug+0xc0/0xc0
[  438.168704]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.174251]  ? check_preemption_disabled+0x48/0x280
[  438.179284]  ? __lock_is_held+0xb5/0x140
[  438.183359]  __alloc_pages_nodemask+0xad8/0xea0
[  438.188036]  ? zap_class+0x640/0x640
[  438.191773]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  438.196813]  ? find_held_lock+0x36/0x1c0
[  438.200891]  ? ____cache_alloc_node+0x1c7/0x1e0
[  438.205570]  ? lock_downgrade+0x900/0x900
[  438.209738]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.215295]  cache_grow_begin+0xa5/0x8c0
[  438.219366]  ? do_raw_spin_unlock+0xa7/0x330
[  438.223790]  fallback_alloc+0x204/0x2e0
[  438.227783]  ____cache_alloc_node+0x1c7/0x1e0
[  438.232294]  kmem_cache_alloc_node+0xe3/0x730
[  438.236800]  ? ipv6_get_ifaddr+0x42e/0x620
[  438.241054]  __alloc_skb+0x119/0x770
[  438.244785]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  438.250082]  ? netdev_alloc_frag+0x1f0/0x1f0
[  438.254502]  ? lock_downgrade+0x900/0x900
[  438.258668]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.264214]  ? refcount_sub_and_test_checked+0x203/0x310
[  438.269681]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  438.275143]  ? addrconf_rs_timer+0x690/0x690
[  438.279569]  ndisc_alloc_skb+0x144/0x340
[  438.283642]  ndisc_send_rs+0x331/0x6e0
[  438.287541]  addrconf_rs_timer+0x314/0x690
[  438.291789]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  438.296041]  call_timer_fn+0x272/0x920
[  438.299945]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  438.304184]  ? process_timeout+0x40/0x40
[  438.308261]  ? mark_held_locks+0xc7/0x130
[  438.312578]  ? _raw_spin_unlock_irq+0x27/0x80
[  438.317083]  ? _raw_spin_unlock_irq+0x27/0x80
[  438.321587]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  438.325830]  ? lockdep_hardirqs_on+0x296/0x5b0
[  438.330420]  ? trace_hardirqs_on+0xbd/0x310
[  438.334750]  ? kasan_check_read+0x11/0x20
[  438.338904]  ? __run_timers+0x7da/0xc70
[  438.342886]  ? trace_hardirqs_off_caller+0x310/0x310
[  438.348000]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  438.352240]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  438.356477]  __run_timers+0x7e5/0xc70
[  438.360287]  ? timer_fixup_init+0x70/0x70
[  438.364444]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  438.369467]  ? zap_class+0x640/0x640
[  438.373186]  ? print_usage_bug+0xc0/0xc0
[  438.377278]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  438.382476]  ? find_held_lock+0x36/0x1c0
[  438.386543]  ? zap_class+0x640/0x640
[  438.390265]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.395804]  ? check_preemption_disabled+0x48/0x280
[  438.400833]  ? __lock_is_held+0xb5/0x140
[  438.404898]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.410445]  ? check_preemption_disabled+0x48/0x280
[  438.415467]  run_timer_softirq+0x52/0xb0
[  438.419531]  ? rcu_read_lock_sched_held+0x14f/0x180
[  438.424549]  __do_softirq+0x308/0xb7e
[  438.428354]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  438.432901]  ? lock_downgrade+0x900/0x900
[  438.437055]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  438.442178]  ? pvclock_read_flags+0x160/0x160
[  438.446680]  ? lapic_next_event+0x5a/0x90
[  438.450831]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.456373]  ? kvm_clock_read+0x18/0x30
[  438.460353]  ? kvm_sched_clock_read+0x9/0x20
[  438.464769]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  438.470312]  ? check_preemption_disabled+0x48/0x280
[  438.475339]  irq_exit+0x17f/0x1c0
[  438.478799]  smp_apic_timer_interrupt+0x1cb/0x760
[  438.483643]  ? smp_reschedule_interrupt+0x109/0x650
[  438.488664]  ? smp_call_function_single_interrupt+0x650/0x650
[  438.494554]  ? interrupt_entry+0xb5/0xc0
[  438.498616]  ? trace_hardirqs_off_caller+0xbb/0x310
[  438.503634]  ? trace_hardirqs_off_caller+0xbb/0x310
[  438.508651]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  438.513498]  ? trace_hardirqs_on_caller+0x310/0x310
[  438.518514]  ? trace_hardirqs_on_caller+0x310/0x310
[  438.523545]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  438.528398]  apic_timer_interrupt+0xf/0x20
[  438.532633]  </IRQ>
[  438.534874] RIP: 0010:dump_stack+0x358/0x39d
[  438.539287] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  438.558195] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  438.565928] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  438.573197] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  438.580465] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  438.587744] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  438.595011] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  438.602313]  ? dump_stack+0x34f/0x39d
[  438.606128]  ? dump_stack_print_info.cold.1+0x20/0x20
[  438.611325]  ? mark_held_locks+0x130/0x130
[  438.615558]  ? mark_held_locks+0x130/0x130
[  438.619804]  dump_header+0x27b/0xf72
[  438.623533]  ? pagefault_out_of_memory+0x197/0x197
[  438.628470]  ? __lock_acquire+0x62f/0x4c20
[  438.632706]  ? percpu_ref_get_many+0x240/0x240
[  438.637294]  ? print_usage_bug+0xc0/0xc0
[  438.641367]  ? zap_class+0x640/0x640
[  438.645088]  ? print_usage_bug+0xc0/0xc0
[  438.649152]  ? print_usage_bug+0xc0/0xc0
[  438.653219]  ? zap_class+0x640/0x640
[  438.656938]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.662485]  ? find_held_lock+0x36/0x1c0
[  438.666559]  ? mark_held_locks+0xc7/0x130
[  438.670709]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  438.675812]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  438.680918]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  438.685510]  ? trace_hardirqs_on+0xbd/0x310
[  438.689830]  ? kasan_check_read+0x11/0x20
[  438.693978]  ? ___ratelimit+0x3b4/0x672
[  438.697959]  ? trace_hardirqs_off_caller+0x310/0x310
[  438.703073]  ? trace_hardirqs_on+0x310/0x310
[  438.707487]  ? lock_downgrade+0x900/0x900
[  438.711646]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  438.716755]  ? ___ratelimit+0x3b9/0x672
[  438.720733]  ? idr_get_free+0xf70/0xf70
[  438.724712]  ? find_held_lock+0x36/0x1c0
[  438.728788]  oom_kill_process.cold.27+0x10/0x903
[  438.733550]  ? zap_class+0x640/0x640
[  438.737269]  ? check_preemption_disabled+0x48/0x280
[  438.742295]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  438.747240]  ? kasan_check_read+0x11/0x20
[  438.751387]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  438.756668]  ? oom_evaluate_task+0x540/0x540
[  438.761089]  ? find_held_lock+0x36/0x1c0
[  438.765165]  ? out_of_memory+0x974/0x1430
[  438.769324]  ? lock_downgrade+0x900/0x900
[  438.773471]  ? check_preemption_disabled+0x48/0x280
[  438.778491]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  438.783419]  ? kasan_check_read+0x11/0x20
[  438.787584]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  438.792860]  ? rcu_softirq_qs+0x20/0x20
[  438.796841]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  438.802382]  ? oom_evaluate_task+0x302/0x540
[  438.806793]  out_of_memory+0xa84/0x1430
[  438.810780]  ? oom_killer_disable+0x3a0/0x3a0
[  438.815278]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  438.820218]  ? __ww_mutex_check_waiters+0x160/0x160
[  438.825245]  __alloc_pages_slowpath+0x232c/0x2de0
[  438.830126]  ? warn_alloc+0x120/0x120
[  438.833926]  ? mark_held_locks+0x130/0x130
[  438.838167]  ? find_get_entry+0xaae/0x1120
[  438.842417]  ? filemap_map_pages+0x1a20/0x1a20
[  438.847010]  ? zap_class+0x640/0x640
[  438.850731]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.856276]  ? check_preemption_disabled+0x48/0x280
[  438.861294]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  438.866834]  ? should_fail+0x22d/0xd01
[  438.870730]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  438.875835]  ? zap_class+0x640/0x640
[  438.879573]  ? __lock_is_held+0xb5/0x140
[  438.883642]  ? mark_held_locks+0x130/0x130
[  438.887881]  ? lock_release+0xa00/0xa00
[  438.891861]  ? perf_trace_sched_process_exec+0x860/0x860
[  438.897309]  ? xa_load+0x2ba/0x460
[  438.900850]  ? lock_downgrade+0x900/0x900
[  438.905003]  ? __might_sleep+0x95/0x190
[  438.908986]  __alloc_pages_nodemask+0xad8/0xea0
[  438.913668]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  438.918690]  ? __page_cache_alloc+0x191/0x5c0
[  438.923181]  ? xa_load+0x2e1/0x460
[  438.926723]  ? xa_clear_mark+0x40/0x40
[  438.930616]  ? zap_class+0x640/0x640
[  438.934339]  ? zap_class+0x640/0x640
[  438.938051]  ? zap_class+0x640/0x640
[  438.941775]  ? __do_page_cache_readahead+0x663/0x810
[  438.946883]  ? find_held_lock+0x36/0x1c0
[  438.950950]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  438.956497]  alloc_pages_current+0x173/0x350
[  438.960913]  __page_cache_alloc+0x38c/0x5c0
[  438.965234]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  438.970166]  ? kasan_check_read+0x11/0x20
[  438.974312]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  438.979599]  ? generic_perform_write+0x6a0/0x6a0
[  438.984369]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  438.989908]  ? check_preemption_disabled+0x48/0x280
[  438.994947]  filemap_fault+0x1595/0x25f0
[  438.999025]  ? __lock_page_or_retry+0xa00/0xa00
[  439.003707]  ? mark_held_locks+0x130/0x130
[  439.007952]  ? filemap_map_pages+0xd6b/0x1a20
[  439.012450]  ? lock_downgrade+0x900/0x900
[  439.016598]  ? check_preemption_disabled+0x48/0x280
[  439.021656]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  439.026589]  ? kasan_check_read+0x11/0x20
[  439.030735]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  439.036011]  ? rcu_softirq_qs+0x20/0x20
[  439.039999]  ? filemap_map_pages+0xd92/0x1a20
[  439.044507]  ? find_get_entries_tag+0x1400/0x1400
[  439.049356]  ? debug_object_destroy+0x2b0/0x2b0
[  439.054027]  ? lock_pi_update_atomic+0x150/0x150
[  439.058805]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.064372]  ? lock_acquire+0x1ed/0x520
[  439.068344]  ? ext4_filemap_fault+0x7a/0xad
[  439.072672]  ? lock_release+0xa00/0xa00
[  439.076644]  ? perf_trace_sched_process_exec+0x860/0x860
[  439.082098]  ? print_usage_bug+0xc0/0xc0
[  439.086170]  ? print_usage_bug+0xc0/0xc0
[  439.090242]  ? down_read+0x8d/0x120
[  439.093869]  ? ext4_filemap_fault+0x7a/0xad
[  439.098191]  ? __down_interruptible+0x700/0x700
[  439.102869]  ext4_filemap_fault+0x82/0xad
[  439.107025]  __do_fault+0x100/0x6b0
[  439.110659]  ? find_held_lock+0x36/0x1c0
[  439.114724]  ? pmd_devmap_trans_unstable+0x220/0x220
[  439.119836]  ? mark_held_locks+0x130/0x130
[  439.124079]  ? mark_held_locks+0x130/0x130
[  439.128327]  ? debug_smp_processor_id+0x1c/0x20
[  439.132995]  ? perf_trace_lock+0x14d/0x7a0
[  439.137236]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  439.142785]  __handle_mm_fault+0x3ea0/0x5be0
[  439.147205]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  439.152048]  ? lock_is_held_type+0x210/0x210
[  439.156474]  ? __switch_to_asm+0x34/0x70
[  439.160538]  ? __switch_to_asm+0x34/0x70
[  439.164613]  ? zap_class+0x640/0x640
[  439.168332]  ? zap_class+0x640/0x640
[  439.172044]  ? __x64_sys_futex+0x53e/0x6a0
[  439.176296]  ? find_held_lock+0x36/0x1c0
[  439.180533]  ? handle_mm_fault+0x42a/0xc70
[  439.184786]  ? lock_downgrade+0x900/0x900
[  439.188936]  ? check_preemption_disabled+0x48/0x280
[  439.193962]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  439.198891]  ? kasan_check_read+0x11/0x20
[  439.203037]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  439.208322]  ? rcu_softirq_qs+0x20/0x20
[  439.212300]  ? trace_hardirqs_off_caller+0x310/0x310
[  439.217408]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  439.222953]  ? check_preemption_disabled+0x48/0x280
[  439.227980]  handle_mm_fault+0x54f/0xc70
[  439.232049]  ? __handle_mm_fault+0x5be0/0x5be0
[  439.236646]  ? find_vma+0x34/0x190
[  439.240190]  __do_page_fault+0x5e8/0xe60
[  439.244253]  ? trace_hardirqs_off+0xb8/0x310
[  439.248674]  do_page_fault+0xf2/0x7e0
[  439.252475]  ? vmalloc_sync_all+0x30/0x30
[  439.256627]  ? error_entry+0x70/0xd0
[  439.260346]  ? trace_hardirqs_off_caller+0xbb/0x310
[  439.265367]  ? trace_hardirqs_on_caller+0xc0/0x310
[  439.270302]  ? syscall_return_slowpath+0x5e0/0x5e0
[  439.275231]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  439.280083]  ? trace_hardirqs_on_caller+0x310/0x310
[  439.285105]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  439.290565]  ? prepare_exit_to_usermode+0x291/0x3b0
[  439.295586]  ? page_fault+0x8/0x30
[  439.299128]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  439.303972]  ? page_fault+0x8/0x30
[  439.307519]  page_fault+0x1e/0x30
[  439.310976] RIP: 0033:0x45ddf3
[  439.314182] Code: Bad RIP value.
[  439.317542] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  439.322907] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  439.330177] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  439.337703] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  439.344970] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  439.352241] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  439.359532] warn_alloc_show_mem: 1 callbacks suppressed
[  439.359544] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  439.359546] Mem-Info:
[  439.359587] active_anon:45985 inactive_anon:296 isolated_anon:0
[  439.359587]  active_file:15 inactive_file:8 isolated_file:0
[  439.359587]  unevictable:0 dirty:0 writeback:0 unstable:0
[  439.359587]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  439.359587]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  439.359587]  free:13771 free_pcp:249 free_cma:0
[  439.364932] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  439.372296] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  439.374695] Call Trace:
[  439.407486] 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
[  439.416836]  <IRQ>
[  439.444497] lowmem_reserve[]: 0 2818 6321 6321
[  439.447105]  dump_stack+0x244/0x39d
[  439.473198] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  439.475355]  ? dump_stack_print_info.cold.1+0x20/0x20
[  439.479900] lowmem_reserve[]: 0 0 3503 3503
[  439.483534]  warn_alloc.cold.116+0xb7/0x1bd
[  439.511009] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  439.516199]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  439.520481] lowmem_reserve[]: 0 0 0 0
[  439.524808]  ? lock_downgrade+0x900/0x900
[  439.553769] 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
[  439.558617]  ? trace_hardirqs_off+0xb8/0x310
[  439.562387] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  439.566531]  ? trace_hardirqs_off+0xb8/0x310
[  439.580030] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  439.584443]  __alloc_pages_slowpath+0x2651/0x2de0
[  439.599511] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  439.603951]  ? warn_alloc+0x120/0x120
[  439.619339] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  439.624172]  ? warn_alloc+0x120/0x120
[  439.632983] 376 total pagecache pages
[  439.636784]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  439.645337] 0 pages in swap cache
[  439.649125]  ? warn_alloc+0x120/0x120
[  439.652899] Swap cache stats: add 0, delete 0, find 0/0
[  439.652907] Free swap  = 0kB
[  439.657921]  ? print_usage_bug+0xc0/0xc0
[  439.661347] Total swap = 0kB
[  439.661355] 1965979 pages RAM
[  439.665150]  ? print_usage_bug+0xc0/0xc0
[  439.670492] 0 pages HighMem/MovableOnly
[  439.673508]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  439.677536] 342854 pages reserved
[  439.677544] 0 pages cma reserved
[  439.680565]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  439.683697] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  439.687699]  ? should_fail+0x22d/0xd01
[  439.691732] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  439.696833]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  439.700264] syz-fuzzer cpuset=/ mems_allowed=0
[  439.703627]  ? __lock_acquire+0x62f/0x4c20
[  439.743588]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  439.748692]  ? should_fail+0x22d/0xd01
[  439.752596]  ? mark_held_locks+0x130/0x130
[  439.756838]  ? mark_held_locks+0x130/0x130
[  439.761084]  ? print_usage_bug+0xc0/0xc0
[  439.765154]  ? find_held_lock+0x36/0x1c0
[  439.769220]  ? zap_class+0x640/0x640
[  439.772947]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.778487]  ? check_preemption_disabled+0x48/0x280
[  439.783517]  ? __lock_is_held+0xb5/0x140
[  439.787588]  __alloc_pages_nodemask+0xad8/0xea0
[  439.792263]  ? zap_class+0x640/0x640
[  439.795988]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  439.801018]  ? find_held_lock+0x36/0x1c0
[  439.805102]  ? ____cache_alloc_node+0x1c7/0x1e0
[  439.809797]  ? lock_downgrade+0x900/0x900
[  439.813960]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.819504]  cache_grow_begin+0xa5/0x8c0
[  439.823568]  ? do_raw_spin_unlock+0xa7/0x330
[  439.827985]  fallback_alloc+0x204/0x2e0
[  439.831970]  ____cache_alloc_node+0x1c7/0x1e0
[  439.836470]  kmem_cache_alloc_node+0xe3/0x730
[  439.840969]  ? mark_held_locks+0xc7/0x130
[  439.845130]  __alloc_skb+0x119/0x770
[  439.848851]  ? netdev_alloc_frag+0x1f0/0x1f0
[  439.853262]  ? do_raw_spin_trylock+0x270/0x270
[  439.857845]  ? kmem_cache_alloc_trace+0x353/0x750
[  439.862694]  ? queue_work_on+0x12c/0x1e0
[  439.866766]  ? switchdev_port_obj_del+0xe3/0x450
[  439.871525]  ? switchdev_trans_item_enqueue+0x260/0x260
[  439.876897]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  439.881929]  __br_mdb_notify+0x4ff/0x15d0
[  439.886095]  ? __br_mdb_add+0x7f0/0x7f0
[  439.890088]  ? zap_class+0x640/0x640
[  439.893812]  ? br_multicast_group_expired+0x96/0x610
[  439.898915]  ? lock_downgrade+0x900/0x900
[  439.903081]  br_mdb_notify+0x310/0x410
[  439.906972]  ? br_mdb_dump+0x27b0/0x27b0
[  439.911039]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.916597]  br_multicast_group_expired+0x1bc/0x610
[  439.921621]  ? br_mdb_free+0x80/0x80
[  439.925346]  call_timer_fn+0x272/0x920
[  439.929235]  ? br_mdb_free+0x80/0x80
[  439.932959]  ? process_timeout+0x40/0x40
[  439.937028]  ? __run_timers+0x7da/0xc70
[  439.941018]  ? _raw_spin_unlock_irq+0x27/0x80
[  439.945512]  ? _raw_spin_unlock_irq+0x27/0x80
[  439.950009]  ? br_mdb_free+0x80/0x80
[  439.953726]  ? lockdep_hardirqs_on+0x296/0x5b0
[  439.958314]  ? trace_hardirqs_on+0xbd/0x310
[  439.962641]  ? kasan_check_read+0x11/0x20
[  439.966790]  ? __run_timers+0x7da/0xc70
[  439.970764]  ? trace_hardirqs_off_caller+0x310/0x310
[  439.975877]  ? br_mdb_free+0x80/0x80
[  439.979596]  ? br_mdb_free+0x80/0x80
[  439.983307]  __run_timers+0x7e5/0xc70
[  439.987121]  ? timer_fixup_init+0x70/0x70
[  439.991273]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  439.996291]  ? zap_class+0x640/0x640
[  440.000012]  ? enqueue_hrtimer+0x1a5/0x560
[  440.004254]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  440.009465]  ? find_held_lock+0x36/0x1c0
[  440.013535]  ? zap_class+0x640/0x640
[  440.017257]  ? pvclock_read_flags+0x160/0x160
[  440.021758]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.027299]  ? check_preemption_disabled+0x48/0x280
[  440.032337]  ? __lock_is_held+0xb5/0x140
[  440.036404]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.041947]  ? check_preemption_disabled+0x48/0x280
[  440.046973]  run_timer_softirq+0x52/0xb0
[  440.051037]  ? rcu_read_lock_sched_held+0x14f/0x180
[  440.056070]  __do_softirq+0x308/0xb7e
[  440.059879]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  440.064377]  ? lock_downgrade+0x900/0x900
[  440.068529]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  440.073643]  ? pvclock_read_flags+0x160/0x160
[  440.078143]  ? lapic_next_event+0x5a/0x90
[  440.082300]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.087842]  ? kvm_clock_read+0x18/0x30
[  440.091846]  ? kvm_sched_clock_read+0x9/0x20
[  440.096259]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.101803]  ? check_preemption_disabled+0x48/0x280
[  440.106829]  irq_exit+0x17f/0x1c0
[  440.110288]  smp_apic_timer_interrupt+0x1cb/0x760
[  440.115146]  ? smp_reschedule_interrupt+0x109/0x650
[  440.120167]  ? smp_call_function_single_interrupt+0x650/0x650
[  440.126054]  ? interrupt_entry+0xb5/0xc0
[  440.130133]  ? trace_hardirqs_off_caller+0xbb/0x310
[  440.135150]  ? trace_hardirqs_off_caller+0xbb/0x310
[  440.140170]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  440.145018]  ? trace_hardirqs_on_caller+0x310/0x310
[  440.150037]  ? trace_hardirqs_on_caller+0x310/0x310
[  440.155070]  ? task_prio+0x50/0x50
[  440.158615]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.164158]  ? check_preemption_disabled+0x48/0x280
[  440.169184]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  440.174036]  apic_timer_interrupt+0xf/0x20
[  440.178272]  </IRQ>
[  440.180516] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  440.185446] 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 42 f3
[  440.204356] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  440.212072] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  440.219343] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  440.226616] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  440.233885] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  440.241153] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  440.248470]  skb_clone+0x1bb/0x500
[  440.252016]  ? skb_split+0x11e0/0x11e0
[  440.255911]  ? check_preemption_disabled+0x48/0x280
[  440.260942]  ? __this_cpu_preempt_check+0x1c/0x20
[  440.265790]  ? __bpf_redirect+0x55b/0xb60
[  440.269946]  ? __switch_to_asm+0x34/0x70
[  440.274010]  ? __switch_to_asm+0x40/0x70
[  440.278085]  bpf_clone_redirect+0xb9/0x490
[  440.282335]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  440.287360]  ? __sched_text_start+0x8/0x8
[  440.291522]  ? find_held_lock+0x36/0x1c0
[  440.295595]  ? lock_acquire+0x1ed/0x520
[  440.299570]  ? bpf_test_run+0x3cb/0x780
[  440.303549]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.309102]  ? check_preemption_disabled+0x48/0x280
[  440.314647]  ? kasan_check_read+0x11/0x20
[  440.318799]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  440.324082]  ? rcu_softirq_qs+0x20/0x20
[  440.328069]  ? preempt_schedule+0x4d/0x60
[  440.332224]  ? ___preempt_schedule+0x16/0x18
[  440.336645]  ? bpf_test_run+0x25d/0x780
[  440.340631]  ? netlink_diag_dump+0x2a0/0x2a0
[  440.345142]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  440.350687]  ? bpf_test_init.isra.10+0x70/0x100
[  440.355365]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  440.360137]  ? bpf_test_finish.isra.9+0x260/0x260
[  440.364987]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  440.370526]  ? fput+0x130/0x1a0
[  440.373815]  ? __bpf_prog_get+0x9b/0x290
[  440.377884]  ? bpf_test_finish.isra.9+0x260/0x260
[  440.382732]  ? bpf_prog_test_run+0x130/0x1a0
[  440.387152]  ? __x64_sys_bpf+0x3db/0x520
[  440.391219]  ? bpf_prog_get+0x20/0x20
[  440.395049]  ? do_syscall_64+0x1b9/0x820
[  440.399122]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  440.404487]  ? syscall_return_slowpath+0x5e0/0x5e0
[  440.409416]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  440.414273]  ? trace_hardirqs_on_caller+0x310/0x310
[  440.419298]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  440.424318]  ? prepare_exit_to_usermode+0x291/0x3b0
[  440.429341]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  440.434197]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  440.439582] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  440.439737] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  440.446600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  440.446609] Call Trace:
[  440.457094] syz-executor0 cpuset=syz0 mems_allowed=0
[  440.466443]  <IRQ>
[  440.476260]  dump_stack+0x244/0x39d
[  440.479905]  ? dump_stack_print_info.cold.1+0x20/0x20
[  440.485112]  warn_alloc.cold.116+0xb7/0x1bd
[  440.489445]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  440.494292]  ? lock_downgrade+0x900/0x900
[  440.498454]  ? trace_hardirqs_off+0xb8/0x310
[  440.502868]  ? trace_hardirqs_off+0xb8/0x310
[  440.507291]  __alloc_pages_slowpath+0x2651/0x2de0
[  440.512171]  ? warn_alloc+0x120/0x120
[  440.515978]  ? print_usage_bug+0xc0/0xc0
[  440.520044]  ? warn_alloc+0x120/0x120
[  440.523861]  ? warn_alloc+0x120/0x120
[  440.527663]  ? print_usage_bug+0xc0/0xc0
[  440.531724]  ? kvm_clock_read+0x18/0x30
[  440.535699]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  440.540719]  ? print_usage_bug+0xc0/0xc0
[  440.544781]  ? __lock_acquire+0x62f/0x4c20
[  440.549024]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  440.554566]  ? should_fail+0x22d/0xd01
[  440.558454]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  440.563737]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  440.568842]  ? __lock_acquire+0x62f/0x4c20
[  440.573090]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  440.578196]  ? __lock_acquire+0x62f/0x4c20
[  440.582443]  ? should_fail+0x22d/0xd01
[  440.586339]  ? rcu_irq_exit+0x1a2/0x390
[  440.590341]  ? mark_held_locks+0x130/0x130
[  440.594589]  ? mark_held_locks+0x130/0x130
[  440.598866]  ? mark_held_locks+0xc7/0x130
[  440.603022]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  440.608082]  ? zap_class+0x640/0x640
[  440.611803]  ? print_usage_bug+0xc0/0xc0
[  440.615879]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.621436]  ? check_preemption_disabled+0x48/0x280
[  440.626477]  ? __lock_is_held+0xb5/0x140
[  440.630551]  __alloc_pages_nodemask+0xad8/0xea0
[  440.635230]  ? zap_class+0x640/0x640
[  440.638958]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  440.643997]  ? find_held_lock+0x36/0x1c0
[  440.648081]  ? ____cache_alloc_node+0x1c7/0x1e0
[  440.652761]  ? lock_downgrade+0x900/0x900
[  440.656923]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.662478]  cache_grow_begin+0xa5/0x8c0
[  440.666545]  ? do_raw_spin_unlock+0xa7/0x330
[  440.670969]  fallback_alloc+0x204/0x2e0
[  440.674954]  ____cache_alloc_node+0x1c7/0x1e0
[  440.679468]  kmem_cache_alloc_node+0xe3/0x730
[  440.683970]  ? ipv6_get_ifaddr+0x42e/0x620
[  440.688221]  __alloc_skb+0x119/0x770
[  440.691939]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  440.697233]  ? netdev_alloc_frag+0x1f0/0x1f0
[  440.701646]  ? lock_downgrade+0x900/0x900
[  440.705807]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.711357]  ? refcount_sub_and_test_checked+0x203/0x310
[  440.716818]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  440.722280]  ? addrconf_rs_timer+0x690/0x690
[  440.726705]  ndisc_alloc_skb+0x144/0x340
[  440.730776]  ndisc_send_rs+0x331/0x6e0
[  440.734676]  addrconf_rs_timer+0x314/0x690
[  440.738923]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  440.743177]  call_timer_fn+0x272/0x920
[  440.747078]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  440.751319]  ? process_timeout+0x40/0x40
[  440.755410]  ? mark_held_locks+0xc7/0x130
[  440.759568]  ? _raw_spin_unlock_irq+0x27/0x80
[  440.764088]  ? _raw_spin_unlock_irq+0x27/0x80
[  440.768588]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  440.772829]  ? lockdep_hardirqs_on+0x296/0x5b0
[  440.777419]  ? trace_hardirqs_on+0xbd/0x310
[  440.781754]  ? kasan_check_read+0x11/0x20
[  440.785908]  ? __run_timers+0x7da/0xc70
[  440.789888]  ? trace_hardirqs_off_caller+0x310/0x310
[  440.795008]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  440.799251]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  440.803488]  __run_timers+0x7e5/0xc70
[  440.807305]  ? timer_fixup_init+0x70/0x70
[  440.811461]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  440.816487]  ? zap_class+0x640/0x640
[  440.820209]  ? print_usage_bug+0xc0/0xc0
[  440.824276]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  440.829481]  ? find_held_lock+0x36/0x1c0
[  440.833554]  ? zap_class+0x640/0x640
[  440.837282]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.842829]  ? check_preemption_disabled+0x48/0x280
[  440.847861]  ? __lock_is_held+0xb5/0x140
[  440.851927]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.857479]  ? check_preemption_disabled+0x48/0x280
[  440.862507]  run_timer_softirq+0x52/0xb0
[  440.866576]  ? rcu_read_lock_sched_held+0x14f/0x180
[  440.871599]  __do_softirq+0x308/0xb7e
[  440.875411]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  440.879913]  ? lock_downgrade+0x900/0x900
[  440.884078]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  440.889199]  ? pvclock_read_flags+0x160/0x160
[  440.893704]  ? lapic_next_event+0x5a/0x90
[  440.897860]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.903408]  ? kvm_clock_read+0x18/0x30
[  440.907390]  ? kvm_sched_clock_read+0x9/0x20
[  440.911807]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  440.917359]  ? check_preemption_disabled+0x48/0x280
[  440.922387]  irq_exit+0x17f/0x1c0
[  440.925851]  smp_apic_timer_interrupt+0x1cb/0x760
[  440.930701]  ? smp_reschedule_interrupt+0x109/0x650
[  440.935727]  ? smp_call_function_single_interrupt+0x650/0x650
[  440.941617]  ? interrupt_entry+0xb5/0xc0
[  440.945687]  ? trace_hardirqs_off_caller+0xbb/0x310
[  440.950710]  ? trace_hardirqs_off_caller+0xbb/0x310
[  440.955735]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  440.960585]  ? trace_hardirqs_on_caller+0x310/0x310
[  440.965607]  ? trace_hardirqs_on_caller+0x310/0x310
[  440.970642]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  440.975497]  apic_timer_interrupt+0xf/0x20
[  440.979730]  </IRQ>
[  440.981977] RIP: 0010:dump_stack+0x358/0x39d
[  440.986388] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  441.005305] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  441.013023] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  441.020298] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  441.027572] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  441.034848] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  441.042122] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  441.049422]  ? dump_stack+0x34f/0x39d
[  441.053250]  ? dump_stack_print_info.cold.1+0x20/0x20
[  441.058454]  ? mark_held_locks+0x130/0x130
[  441.062692]  ? mark_held_locks+0x130/0x130
[  441.066954]  dump_header+0x27b/0xf72
[  441.070683]  ? pagefault_out_of_memory+0x197/0x197
[  441.075625]  ? __lock_acquire+0x62f/0x4c20
[  441.079869]  ? percpu_ref_get_many+0x240/0x240
[  441.084462]  ? print_usage_bug+0xc0/0xc0
[  441.088537]  ? zap_class+0x640/0x640
[  441.092258]  ? print_usage_bug+0xc0/0xc0
[  441.096323]  ? print_usage_bug+0xc0/0xc0
[  441.100393]  ? zap_class+0x640/0x640
[  441.104123]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.109672]  ? find_held_lock+0x36/0x1c0
[  441.113745]  ? mark_held_locks+0xc7/0x130
[  441.117902]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  441.123016]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  441.128134]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  441.132726]  ? trace_hardirqs_on+0xbd/0x310
[  441.137052]  ? kasan_check_read+0x11/0x20
[  441.141217]  ? ___ratelimit+0x3b4/0x672
[  441.145197]  ? trace_hardirqs_off_caller+0x310/0x310
[  441.150310]  ? trace_hardirqs_on+0x310/0x310
[  441.154731]  ? lock_downgrade+0x900/0x900
[  441.158890]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  441.164001]  ? ___ratelimit+0x3b9/0x672
[  441.167991]  ? idr_get_free+0xf70/0xf70
[  441.171971]  ? find_held_lock+0x36/0x1c0
[  441.176052]  oom_kill_process.cold.27+0x10/0x903
[  441.181333]  ? zap_class+0x640/0x640
[  441.185059]  ? check_preemption_disabled+0x48/0x280
[  441.190112]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  441.195068]  ? kasan_check_read+0x11/0x20
[  441.199222]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  441.204513]  ? oom_evaluate_task+0x540/0x540
[  441.208934]  ? find_held_lock+0x36/0x1c0
[  441.213008]  ? out_of_memory+0x974/0x1430
[  441.217172]  ? lock_downgrade+0x900/0x900
[  441.221331]  ? check_preemption_disabled+0x48/0x280
[  441.226363]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  441.231302]  ? kasan_check_read+0x11/0x20
[  441.235465]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  441.240748]  ? rcu_softirq_qs+0x20/0x20
[  441.244738]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.250285]  ? oom_evaluate_task+0x302/0x540
[  441.254706]  out_of_memory+0xa84/0x1430
[  441.258698]  ? oom_killer_disable+0x3a0/0x3a0
[  441.263204]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  441.268147]  ? __ww_mutex_check_waiters+0x160/0x160
[  441.273186]  __alloc_pages_slowpath+0x232c/0x2de0
[  441.278071]  ? warn_alloc+0x120/0x120
[  441.281879]  ? mark_held_locks+0x130/0x130
[  441.286127]  ? find_get_entry+0xaae/0x1120
[  441.290378]  ? filemap_map_pages+0x1a20/0x1a20
[  441.294971]  ? zap_class+0x640/0x640
[  441.298696]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.304243]  ? check_preemption_disabled+0x48/0x280
[  441.309275]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.314821]  ? should_fail+0x22d/0xd01
[  441.318717]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  441.323830]  ? zap_class+0x640/0x640
[  441.327572]  ? __lock_is_held+0xb5/0x140
[  441.331645]  ? mark_held_locks+0x130/0x130
[  441.335886]  ? lock_release+0xa00/0xa00
[  441.339864]  ? perf_trace_sched_process_exec+0x860/0x860
[  441.345323]  ? xa_load+0x2ba/0x460
[  441.348870]  ? lock_downgrade+0x900/0x900
[  441.353026]  ? __might_sleep+0x95/0x190
[  441.357010]  __alloc_pages_nodemask+0xad8/0xea0
[  441.361696]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  441.366721]  ? __page_cache_alloc+0x191/0x5c0
[  441.371224]  ? xa_load+0x2e1/0x460
[  441.374766]  ? xa_clear_mark+0x40/0x40
[  441.378661]  ? zap_class+0x640/0x640
[  441.382387]  ? zap_class+0x640/0x640
[  441.386108]  ? zap_class+0x640/0x640
[  441.389824]  ? __do_page_cache_readahead+0x663/0x810
[  441.394943]  ? find_held_lock+0x36/0x1c0
[  441.399015]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  441.404571]  alloc_pages_current+0x173/0x350
[  441.408995]  __page_cache_alloc+0x38c/0x5c0
[  441.413321]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  441.418263]  ? kasan_check_read+0x11/0x20
[  441.422422]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  441.427716]  ? generic_perform_write+0x6a0/0x6a0
[  441.432484]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.438034]  ? check_preemption_disabled+0x48/0x280
[  441.443084]  filemap_fault+0x1595/0x25f0
[  441.447176]  ? __lock_page_or_retry+0xa00/0xa00
[  441.451857]  ? mark_held_locks+0x130/0x130
[  441.456115]  ? filemap_map_pages+0xd6b/0x1a20
[  441.460620]  ? lock_downgrade+0x900/0x900
[  441.464780]  ? check_preemption_disabled+0x48/0x280
[  441.469810]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  441.474745]  ? kasan_check_read+0x11/0x20
[  441.478896]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  441.484179]  ? rcu_softirq_qs+0x20/0x20
[  441.488174]  ? filemap_map_pages+0xd92/0x1a20
[  441.492707]  ? find_get_entries_tag+0x1400/0x1400
[  441.497561]  ? debug_object_destroy+0x2b0/0x2b0
[  441.502240]  ? lock_pi_update_atomic+0x150/0x150
[  441.507002]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.512562]  ? lock_acquire+0x1ed/0x520
[  441.516554]  ? ext4_filemap_fault+0x7a/0xad
[  441.520888]  ? lock_release+0xa00/0xa00
[  441.524864]  ? perf_trace_sched_process_exec+0x860/0x860
[  441.530327]  ? print_usage_bug+0xc0/0xc0
[  441.534397]  ? print_usage_bug+0xc0/0xc0
[  441.538480]  ? down_read+0x8d/0x120
[  441.542111]  ? ext4_filemap_fault+0x7a/0xad
[  441.546449]  ? __down_interruptible+0x700/0x700
[  441.551141]  ext4_filemap_fault+0x82/0xad
[  441.555302]  __do_fault+0x100/0x6b0
[  441.558932]  ? find_held_lock+0x36/0x1c0
[  441.563007]  ? pmd_devmap_trans_unstable+0x220/0x220
[  441.568119]  ? mark_held_locks+0x130/0x130
[  441.572364]  ? mark_held_locks+0x130/0x130
[  441.576610]  ? debug_smp_processor_id+0x1c/0x20
[  441.581283]  ? perf_trace_lock+0x14d/0x7a0
[  441.585533]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.591092]  __handle_mm_fault+0x3ea0/0x5be0
[  441.595519]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  441.600372]  ? lock_is_held_type+0x210/0x210
[  441.604793]  ? __switch_to_asm+0x34/0x70
[  441.608860]  ? __switch_to_asm+0x34/0x70
[  441.612943]  ? zap_class+0x640/0x640
[  441.616662]  ? zap_class+0x640/0x640
[  441.620378]  ? __x64_sys_futex+0x53e/0x6a0
[  441.624625]  ? find_held_lock+0x36/0x1c0
[  441.628701]  ? handle_mm_fault+0x42a/0xc70
[  441.632943]  ? lock_downgrade+0x900/0x900
[  441.637097]  ? check_preemption_disabled+0x48/0x280
[  441.642125]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  441.647073]  ? kasan_check_read+0x11/0x20
[  441.651229]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  441.656508]  ? rcu_softirq_qs+0x20/0x20
[  441.660484]  ? trace_hardirqs_off_caller+0x310/0x310
[  441.665598]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.671148]  ? check_preemption_disabled+0x48/0x280
[  441.676183]  handle_mm_fault+0x54f/0xc70
[  441.680281]  ? __handle_mm_fault+0x5be0/0x5be0
[  441.684873]  ? find_vma+0x34/0x190
[  441.688421]  __do_page_fault+0x5e8/0xe60
[  441.692495]  ? trace_hardirqs_off+0xb8/0x310
[  441.696922]  do_page_fault+0xf2/0x7e0
[  441.700727]  ? vmalloc_sync_all+0x30/0x30
[  441.704878]  ? error_entry+0x70/0xd0
[  441.708601]  ? trace_hardirqs_off_caller+0xbb/0x310
[  441.713619]  ? trace_hardirqs_on_caller+0xc0/0x310
[  441.718553]  ? syscall_return_slowpath+0x5e0/0x5e0
[  441.723485]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  441.728337]  ? trace_hardirqs_on_caller+0x310/0x310
[  441.733357]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  441.738819]  ? prepare_exit_to_usermode+0x291/0x3b0
[  441.743839]  ? page_fault+0x8/0x30
[  441.747390]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  441.752244]  ? page_fault+0x8/0x30
[  441.755790]  page_fault+0x1e/0x30
[  441.759245] RIP: 0033:0x45ddf3
[  441.762457] Code: Bad RIP value.
[  441.765818] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  441.771182] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  441.778463] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  441.785737] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  441.793019] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  441.800298] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  441.807604] warn_alloc_show_mem: 1 callbacks suppressed
[  441.807616] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  441.807618] Mem-Info:
[  441.807650] active_anon:45985 inactive_anon:296 isolated_anon:0
[  441.807650]  active_file:15 inactive_file:8 isolated_file:0
[  441.807650]  unevictable:0 dirty:0 writeback:0 unstable:0
[  441.807650]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  441.807650]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  441.807650]  free:13771 free_pcp:249 free_cma:0
[  441.812990] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  441.812999] Call Trace:
[  441.820386] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  441.822791]  <IRQ>
[  441.855582] 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
[  441.864963]  dump_stack+0x244/0x39d
[  441.867522] lowmem_reserve[]: 0 2818 6321 6321
[  441.895211]  ? dump_stack_print_info.cold.1+0x20/0x20
[  441.897339] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  441.923484]  warn_alloc.cold.116+0xb7/0x1bd
[  441.927086] lowmem_reserve[]: 0 0 3503 3503
[  441.931682]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  441.936848] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  441.964379]  ? lock_downgrade+0x900/0x900
[  441.968677] lowmem_reserve[]: 0 0 0 0
[  441.973007]  ? trace_hardirqs_off+0xb8/0x310
[  441.977823] 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
[  442.006827]  ? trace_hardirqs_off+0xb8/0x310
[  442.010953] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  442.014761]  __alloc_pages_slowpath+0x2651/0x2de0
[  442.019139] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  442.032728]  ? warn_alloc+0x120/0x120
[  442.037124] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  442.052216]  ? warn_alloc+0x120/0x120
[  442.057046] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  442.072496]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  442.076276] 376 total pagecache pages
[  442.085122]  ? warn_alloc+0x120/0x120
[  442.088917] 0 pages in swap cache
[  442.097498]  ? print_usage_bug+0xc0/0xc0
[  442.102501] Swap cache stats: add 0, delete 0, find 0/0
[  442.106308]  ? print_usage_bug+0xc0/0xc0
[  442.110089] Free swap  = 0kB
[  442.113555]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  442.117589] Total swap = 0kB
[  442.122968]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  442.127000] 1965979 pages RAM
[  442.130024]  ? should_fail+0x22d/0xd01
[  442.135190] 0 pages HighMem/MovableOnly
[  442.138216]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  442.143731] 342854 pages reserved
[  442.146846]  ? __lock_acquire+0x62f/0x4c20
[  442.150701] 0 pages cma reserved
[  442.150774] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  442.154694]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  442.159886] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  442.163281]  ? should_fail+0x22d/0xd01
[  442.167505] syz-fuzzer cpuset=/ mems_allowed=0
[  442.170890]  ? mark_held_locks+0x130/0x130
[  442.205407]  ? mark_held_locks+0x130/0x130
[  442.209705]  ? print_usage_bug+0xc0/0xc0
[  442.213791]  ? find_held_lock+0x36/0x1c0
[  442.217872]  ? zap_class+0x640/0x640
[  442.221616]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.227180]  ? check_preemption_disabled+0x48/0x280
[  442.232247]  ? __lock_is_held+0xb5/0x140
[  442.236341]  __alloc_pages_nodemask+0xad8/0xea0
[  442.241031]  ? zap_class+0x640/0x640
[  442.244786]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  442.249838]  ? find_held_lock+0x36/0x1c0
[  442.253931]  ? ____cache_alloc_node+0x1c7/0x1e0
[  442.258625]  ? lock_downgrade+0x900/0x900
[  442.262798]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.268361]  cache_grow_begin+0xa5/0x8c0
[  442.272444]  ? do_raw_spin_unlock+0xa7/0x330
[  442.276883]  fallback_alloc+0x204/0x2e0
[  442.280931]  ____cache_alloc_node+0x1c7/0x1e0
[  442.285473]  kmem_cache_alloc_node+0xe3/0x730
[  442.289990]  ? mark_held_locks+0xc7/0x130
[  442.294167]  __alloc_skb+0x119/0x770
[  442.297910]  ? netdev_alloc_frag+0x1f0/0x1f0
[  442.302345]  ? do_raw_spin_trylock+0x270/0x270
[  442.306959]  ? kmem_cache_alloc_trace+0x353/0x750
[  442.312344]  ? queue_work_on+0x12c/0x1e0
[  442.316435]  ? switchdev_port_obj_del+0xe3/0x450
[  442.321213]  ? switchdev_trans_item_enqueue+0x260/0x260
[  442.326609]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  442.331655]  __br_mdb_notify+0x4ff/0x15d0
[  442.335835]  ? __br_mdb_add+0x7f0/0x7f0
[  442.339838]  ? zap_class+0x640/0x640
[  442.343584]  ? br_multicast_group_expired+0x96/0x610
[  442.348705]  ? lock_downgrade+0x900/0x900
[  442.352874]  br_mdb_notify+0x310/0x410
[  442.356778]  ? br_mdb_dump+0x27b0/0x27b0
[  442.360859]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.366422]  br_multicast_group_expired+0x1bc/0x610
[  442.371465]  ? br_mdb_free+0x80/0x80
[  442.375209]  call_timer_fn+0x272/0x920
[  442.379122]  ? br_mdb_free+0x80/0x80
[  442.382848]  ? process_timeout+0x40/0x40
[  442.386934]  ? __run_timers+0x7da/0xc70
[  442.390929]  ? _raw_spin_unlock_irq+0x27/0x80
[  442.395440]  ? _raw_spin_unlock_irq+0x27/0x80
[  442.399958]  ? br_mdb_free+0x80/0x80
[  442.403691]  ? lockdep_hardirqs_on+0x296/0x5b0
[  442.408288]  ? trace_hardirqs_on+0xbd/0x310
[  442.412621]  ? kasan_check_read+0x11/0x20
[  442.416782]  ? __run_timers+0x7da/0xc70
[  442.420770]  ? trace_hardirqs_off_caller+0x310/0x310
[  442.425947]  ? br_mdb_free+0x80/0x80
[  442.429684]  ? br_mdb_free+0x80/0x80
[  442.433410]  __run_timers+0x7e5/0xc70
[  442.437235]  ? timer_fixup_init+0x70/0x70
[  442.441403]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  442.446441]  ? zap_class+0x640/0x640
[  442.450177]  ? enqueue_hrtimer+0x1a5/0x560
[  442.454428]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  442.459643]  ? find_held_lock+0x36/0x1c0
[  442.463726]  ? zap_class+0x640/0x640
[  442.467458]  ? pvclock_read_flags+0x160/0x160
[  442.471973]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.477527]  ? check_preemption_disabled+0x48/0x280
[  442.482567]  ? __lock_is_held+0xb5/0x140
[  442.486645]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.492202]  ? check_preemption_disabled+0x48/0x280
[  442.497244]  run_timer_softirq+0x52/0xb0
[  442.501423]  ? rcu_read_lock_sched_held+0x14f/0x180
[  442.506457]  __do_softirq+0x308/0xb7e
[  442.510279]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  442.514788]  ? lock_downgrade+0x900/0x900
[  442.518960]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  442.524104]  ? pvclock_read_flags+0x160/0x160
[  442.528618]  ? lapic_next_event+0x5a/0x90
[  442.532785]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.538343]  ? kvm_clock_read+0x18/0x30
[  442.542337]  ? kvm_sched_clock_read+0x9/0x20
[  442.546770]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.552339]  ? check_preemption_disabled+0x48/0x280
[  442.557382]  irq_exit+0x17f/0x1c0
[  442.560852]  smp_apic_timer_interrupt+0x1cb/0x760
[  442.565712]  ? smp_reschedule_interrupt+0x109/0x650
[  442.570748]  ? smp_call_function_single_interrupt+0x650/0x650
[  442.576653]  ? interrupt_entry+0xb5/0xc0
[  442.580733]  ? trace_hardirqs_off_caller+0xbb/0x310
[  442.585764]  ? trace_hardirqs_off_caller+0xbb/0x310
[  442.590798]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  442.595662]  ? trace_hardirqs_on_caller+0x310/0x310
[  442.600696]  ? trace_hardirqs_on_caller+0x310/0x310
[  442.605734]  ? task_prio+0x50/0x50
[  442.609295]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.614849]  ? check_preemption_disabled+0x48/0x280
[  442.619889]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  442.624759]  apic_timer_interrupt+0xf/0x20
[  442.628999]  </IRQ>
[  442.631251] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  442.636199] 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 42 f3
[  442.655129] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  442.662865] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  442.670159] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  442.677449] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  442.684739] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  442.692030] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  442.699384]  skb_clone+0x1bb/0x500
[  442.702958]  ? skb_split+0x11e0/0x11e0
[  442.706867]  ? check_preemption_disabled+0x48/0x280
[  442.711911]  ? __this_cpu_preempt_check+0x1c/0x20
[  442.716777]  ? __bpf_redirect+0x55b/0xb60
[  442.720952]  ? __switch_to_asm+0x34/0x70
[  442.725034]  ? __switch_to_asm+0x40/0x70
[  442.729135]  bpf_clone_redirect+0xb9/0x490
[  442.733399]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  442.738440]  ? __sched_text_start+0x8/0x8
[  442.742619]  ? find_held_lock+0x36/0x1c0
[  442.746709]  ? lock_acquire+0x1ed/0x520
[  442.750697]  ? bpf_test_run+0x3cb/0x780
[  442.754687]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.760243]  ? check_preemption_disabled+0x48/0x280
[  442.765287]  ? kasan_check_read+0x11/0x20
[  442.769455]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  442.774756]  ? rcu_softirq_qs+0x20/0x20
[  442.778748]  ? preempt_schedule+0x4d/0x60
[  442.782912]  ? ___preempt_schedule+0x16/0x18
[  442.787478]  ? bpf_test_run+0x25d/0x780
[  442.791479]  ? netlink_diag_dump+0x2a0/0x2a0
[  442.795909]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  442.801469]  ? bpf_test_init.isra.10+0x70/0x100
[  442.806168]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  442.811079]  ? bpf_test_finish.isra.9+0x260/0x260
[  442.815946]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  442.821503]  ? fput+0x130/0x1a0
[  442.824805]  ? __bpf_prog_get+0x9b/0x290
[  442.828887]  ? bpf_test_finish.isra.9+0x260/0x260
[  442.833750]  ? bpf_prog_test_run+0x130/0x1a0
[  442.838180]  ? __x64_sys_bpf+0x3db/0x520
[  442.842257]  ? bpf_prog_get+0x20/0x20
[  442.846113]  ? do_syscall_64+0x1b9/0x820
[  442.850192]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  442.855576]  ? syscall_return_slowpath+0x5e0/0x5e0
[  442.860521]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  442.865385]  ? trace_hardirqs_on_caller+0x310/0x310
[  442.870424]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  442.875462]  ? prepare_exit_to_usermode+0x291/0x3b0
[  442.880509]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  442.885378]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  442.890777] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  442.890951] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  442.897808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  442.897818] Call Trace:
[  442.908316] syz-executor0 cpuset=syz0 mems_allowed=0
[  442.917682]  <IRQ>
[  442.927532]  dump_stack+0x244/0x39d
[  442.931180]  ? dump_stack_print_info.cold.1+0x20/0x20
[  442.936400]  warn_alloc.cold.116+0xb7/0x1bd
[  442.940742]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  442.945600]  ? lock_downgrade+0x900/0x900
[  442.949772]  ? trace_hardirqs_off+0xb8/0x310
[  442.954200]  ? trace_hardirqs_off+0xb8/0x310
[  442.958630]  __alloc_pages_slowpath+0x2651/0x2de0
[  442.963515]  ? warn_alloc+0x120/0x120
[  442.967335]  ? print_usage_bug+0xc0/0xc0
[  442.971406]  ? warn_alloc+0x120/0x120
[  442.975230]  ? warn_alloc+0x120/0x120
[  442.979048]  ? print_usage_bug+0xc0/0xc0
[  442.983144]  ? kvm_clock_read+0x18/0x30
[  442.987135]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  442.992175]  ? print_usage_bug+0xc0/0xc0
[  442.996253]  ? __lock_acquire+0x62f/0x4c20
[  443.000506]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  443.006081]  ? should_fail+0x22d/0xd01
[  443.009982]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  443.015277]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  443.020396]  ? __lock_acquire+0x62f/0x4c20
[  443.024661]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  443.029785]  ? __lock_acquire+0x62f/0x4c20
[  443.034110]  ? should_fail+0x22d/0xd01
[  443.038011]  ? rcu_irq_exit+0x1a2/0x390
[  443.042009]  ? mark_held_locks+0x130/0x130
[  443.046264]  ? mark_held_locks+0x130/0x130
[  443.050521]  ? mark_held_locks+0xc7/0x130
[  443.054684]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  443.059722]  ? zap_class+0x640/0x640
[  443.063454]  ? print_usage_bug+0xc0/0xc0
[  443.067539]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.073117]  ? check_preemption_disabled+0x48/0x280
[  443.078163]  ? __lock_is_held+0xb5/0x140
[  443.082248]  __alloc_pages_nodemask+0xad8/0xea0
[  443.086935]  ? zap_class+0x640/0x640
[  443.090672]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  443.095713]  ? find_held_lock+0x36/0x1c0
[  443.099799]  ? ____cache_alloc_node+0x1c7/0x1e0
[  443.104487]  ? lock_downgrade+0x900/0x900
[  443.108659]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.114220]  cache_grow_begin+0xa5/0x8c0
[  443.118298]  ? do_raw_spin_unlock+0xa7/0x330
[  443.122734]  fallback_alloc+0x204/0x2e0
[  443.126730]  ____cache_alloc_node+0x1c7/0x1e0
[  443.131248]  kmem_cache_alloc_node+0xe3/0x730
[  443.135760]  ? ipv6_get_ifaddr+0x42e/0x620
[  443.140017]  __alloc_skb+0x119/0x770
[  443.143745]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  443.149043]  ? netdev_alloc_frag+0x1f0/0x1f0
[  443.153487]  ? lock_downgrade+0x900/0x900
[  443.157657]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.163259]  ? refcount_sub_and_test_checked+0x203/0x310
[  443.168732]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  443.174200]  ? addrconf_rs_timer+0x690/0x690
[  443.178637]  ndisc_alloc_skb+0x144/0x340
[  443.183258]  ndisc_send_rs+0x331/0x6e0
[  443.187164]  addrconf_rs_timer+0x314/0x690
[  443.191414]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  443.195678]  call_timer_fn+0x272/0x920
[  443.199577]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  443.203828]  ? process_timeout+0x40/0x40
[  443.207911]  ? mark_held_locks+0xc7/0x130
[  443.212090]  ? _raw_spin_unlock_irq+0x27/0x80
[  443.216597]  ? _raw_spin_unlock_irq+0x27/0x80
[  443.221119]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  443.225367]  ? lockdep_hardirqs_on+0x296/0x5b0
[  443.229966]  ? trace_hardirqs_on+0xbd/0x310
[  443.234298]  ? kasan_check_read+0x11/0x20
[  443.238459]  ? __run_timers+0x7da/0xc70
[  443.242454]  ? trace_hardirqs_off_caller+0x310/0x310
[  443.247578]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  443.251834]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  443.256096]  __run_timers+0x7e5/0xc70
[  443.259921]  ? timer_fixup_init+0x70/0x70
[  443.264102]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  443.269135]  ? zap_class+0x640/0x640
[  443.272867]  ? print_usage_bug+0xc0/0xc0
[  443.276941]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  443.282155]  ? find_held_lock+0x36/0x1c0
[  443.286238]  ? zap_class+0x640/0x640
[  443.289974]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.295527]  ? check_preemption_disabled+0x48/0x280
[  443.300572]  ? __lock_is_held+0xb5/0x140
[  443.304649]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.310204]  ? check_preemption_disabled+0x48/0x280
[  443.315240]  run_timer_softirq+0x52/0xb0
[  443.319314]  ? rcu_read_lock_sched_held+0x14f/0x180
[  443.324348]  __do_softirq+0x308/0xb7e
[  443.328167]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  443.332674]  ? lock_downgrade+0x900/0x900
[  443.336841]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  443.341963]  ? pvclock_read_flags+0x160/0x160
[  443.346473]  ? lapic_next_event+0x5a/0x90
[  443.350636]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.356198]  ? kvm_clock_read+0x18/0x30
[  443.360188]  ? kvm_sched_clock_read+0x9/0x20
[  443.364659]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  443.370213]  ? check_preemption_disabled+0x48/0x280
[  443.375252]  irq_exit+0x17f/0x1c0
[  443.378721]  smp_apic_timer_interrupt+0x1cb/0x760
[  443.383580]  ? smp_reschedule_interrupt+0x109/0x650
[  443.388616]  ? smp_call_function_single_interrupt+0x650/0x650
[  443.394516]  ? interrupt_entry+0xb5/0xc0
[  443.398589]  ? trace_hardirqs_off_caller+0xbb/0x310
[  443.403613]  ? trace_hardirqs_off_caller+0xbb/0x310
[  443.408643]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  443.413499]  ? trace_hardirqs_on_caller+0x310/0x310
[  443.418527]  ? trace_hardirqs_on_caller+0x310/0x310
[  443.423569]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  443.428439]  apic_timer_interrupt+0xf/0x20
[  443.432683]  </IRQ>
[  443.434932] RIP: 0010:dump_stack+0x358/0x39d
[  443.439354] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  443.458276] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  443.466008] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  443.473293] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  443.480577] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  443.487861] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  443.495149] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  443.502461]  ? dump_stack+0x34f/0x39d
[  443.506290]  ? dump_stack_print_info.cold.1+0x20/0x20
[  443.511496]  ? mark_held_locks+0x130/0x130
[  443.515741]  ? mark_held_locks+0x130/0x130
[  443.519991]  dump_header+0x27b/0xf72
[  443.523731]  ? pagefault_out_of_memory+0x197/0x197
[  443.528684]  ? __lock_acquire+0x62f/0x4c20
[  443.532932]  ? percpu_ref_get_many+0x240/0x240
[  443.537528]  ? print_usage_bug+0xc0/0xc0
[  443.541606]  ? zap_class+0x640/0x640
[  443.545336]  ? print_usage_bug+0xc0/0xc0
[  443.549405]  ? print_usage_bug+0xc0/0xc0
[  443.553482]  ? zap_class+0x640/0x640
[  443.557212]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.562764]  ? find_held_lock+0x36/0x1c0
[  443.566846]  ? mark_held_locks+0xc7/0x130
[  443.571010]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  443.576125]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  443.581245]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  443.585842]  ? trace_hardirqs_on+0xbd/0x310
[  443.590179]  ? kasan_check_read+0x11/0x20
[  443.594341]  ? ___ratelimit+0x3b4/0x672
[  443.598326]  ? trace_hardirqs_off_caller+0x310/0x310
[  443.603446]  ? trace_hardirqs_on+0x310/0x310
[  443.607869]  ? lock_downgrade+0x900/0x900
[  443.612037]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  443.617177]  ? ___ratelimit+0x3b9/0x672
[  443.621166]  ? idr_get_free+0xf70/0xf70
[  443.625151]  ? find_held_lock+0x36/0x1c0
[  443.629235]  oom_kill_process.cold.27+0x10/0x903
[  443.634003]  ? zap_class+0x640/0x640
[  443.637728]  ? check_preemption_disabled+0x48/0x280
[  443.642759]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  443.647699]  ? kasan_check_read+0x11/0x20
[  443.651857]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  443.657152]  ? oom_evaluate_task+0x540/0x540
[  443.661577]  ? find_held_lock+0x36/0x1c0
[  443.665663]  ? out_of_memory+0x974/0x1430
[  443.669824]  ? lock_downgrade+0x900/0x900
[  443.673987]  ? check_preemption_disabled+0x48/0x280
[  443.679021]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  443.683970]  ? kasan_check_read+0x11/0x20
[  443.688138]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  443.693447]  ? rcu_softirq_qs+0x20/0x20
[  443.697464]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  443.703021]  ? oom_evaluate_task+0x302/0x540
[  443.707452]  out_of_memory+0xa84/0x1430
[  443.711455]  ? oom_killer_disable+0x3a0/0x3a0
[  443.715968]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  443.720916]  ? __ww_mutex_check_waiters+0x160/0x160
[  443.725963]  __alloc_pages_slowpath+0x232c/0x2de0
[  443.730848]  ? warn_alloc+0x120/0x120
[  443.734657]  ? mark_held_locks+0x130/0x130
[  443.738907]  ? find_get_entry+0xaae/0x1120
[  443.743163]  ? filemap_map_pages+0x1a20/0x1a20
[  443.747759]  ? zap_class+0x640/0x640
[  443.751494]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.757047]  ? check_preemption_disabled+0x48/0x280
[  443.762112]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  443.767666]  ? should_fail+0x22d/0xd01
[  443.771614]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  443.776736]  ? zap_class+0x640/0x640
[  443.780504]  ? __lock_is_held+0xb5/0x140
[  443.784583]  ? mark_held_locks+0x130/0x130
[  443.788831]  ? lock_release+0xa00/0xa00
[  443.792817]  ? perf_trace_sched_process_exec+0x860/0x860
[  443.798277]  ? xa_load+0x2ba/0x460
[  443.801828]  ? lock_downgrade+0x900/0x900
[  443.805994]  ? __might_sleep+0x95/0x190
[  443.809986]  __alloc_pages_nodemask+0xad8/0xea0
[  443.814676]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  443.819707]  ? __page_cache_alloc+0x191/0x5c0
[  443.824217]  ? xa_load+0x2e1/0x460
[  443.827767]  ? xa_clear_mark+0x40/0x40
[  443.831667]  ? zap_class+0x640/0x640
[  443.835399]  ? zap_class+0x640/0x640
[  443.839147]  ? zap_class+0x640/0x640
[  443.842878]  ? __do_page_cache_readahead+0x663/0x810
[  443.848003]  ? find_held_lock+0x36/0x1c0
[  443.852100]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  443.857661]  alloc_pages_current+0x173/0x350
[  443.862111]  __page_cache_alloc+0x38c/0x5c0
[  443.866451]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  443.871395]  ? kasan_check_read+0x11/0x20
[  443.875562]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  443.880854]  ? generic_perform_write+0x6a0/0x6a0
[  443.885625]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  443.891180]  ? check_preemption_disabled+0x48/0x280
[  443.896222]  filemap_fault+0x1595/0x25f0
[  443.900314]  ? __lock_page_or_retry+0xa00/0xa00
[  443.904999]  ? mark_held_locks+0x130/0x130
[  443.909261]  ? filemap_map_pages+0xd6b/0x1a20
[  443.913773]  ? lock_downgrade+0x900/0x900
[  443.917932]  ? check_preemption_disabled+0x48/0x280
[  443.922968]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  443.927907]  ? kasan_check_read+0x11/0x20
[  443.932085]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  443.937374]  ? rcu_softirq_qs+0x20/0x20
[  443.941374]  ? filemap_map_pages+0xd92/0x1a20
[  443.945892]  ? find_get_entries_tag+0x1400/0x1400
[  443.950753]  ? debug_object_destroy+0x2b0/0x2b0
[  443.955447]  ? lock_pi_update_atomic+0x150/0x150
[  443.960217]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.965780]  ? lock_acquire+0x1ed/0x520
[  443.969765]  ? ext4_filemap_fault+0x7a/0xad
[  443.974122]  ? lock_release+0xa00/0xa00
[  443.978118]  ? perf_trace_sched_process_exec+0x860/0x860
[  443.983583]  ? print_usage_bug+0xc0/0xc0
[  443.987656]  ? print_usage_bug+0xc0/0xc0
[  443.991738]  ? down_read+0x8d/0x120
[  443.995373]  ? ext4_filemap_fault+0x7a/0xad
[  443.999707]  ? __down_interruptible+0x700/0x700
[  444.004397]  ext4_filemap_fault+0x82/0xad
[  444.008565]  __do_fault+0x100/0x6b0
[  444.012206]  ? find_held_lock+0x36/0x1c0
[  444.016288]  ? pmd_devmap_trans_unstable+0x220/0x220
[  444.021413]  ? mark_held_locks+0x130/0x130
[  444.025665]  ? mark_held_locks+0x130/0x130
[  444.029916]  ? debug_smp_processor_id+0x1c/0x20
[  444.034599]  ? perf_trace_lock+0x14d/0x7a0
[  444.038856]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  444.044417]  __handle_mm_fault+0x3ea0/0x5be0
[  444.048853]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  444.053709]  ? lock_is_held_type+0x210/0x210
[  444.058138]  ? __switch_to_asm+0x34/0x70
[  444.062214]  ? __switch_to_asm+0x34/0x70
[  444.066301]  ? zap_class+0x640/0x640
[  444.070022]  ? zap_class+0x640/0x640
[  444.073746]  ? __x64_sys_futex+0x53e/0x6a0
[  444.078000]  ? find_held_lock+0x36/0x1c0
[  444.082100]  ? handle_mm_fault+0x42a/0xc70
[  444.086353]  ? lock_downgrade+0x900/0x900
[  444.090512]  ? check_preemption_disabled+0x48/0x280
[  444.095541]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  444.100486]  ? kasan_check_read+0x11/0x20
[  444.104645]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  444.109934]  ? rcu_softirq_qs+0x20/0x20
[  444.113921]  ? trace_hardirqs_off_caller+0x310/0x310
[  444.119038]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  444.124608]  ? check_preemption_disabled+0x48/0x280
[  444.129650]  handle_mm_fault+0x54f/0xc70
[  444.133729]  ? __handle_mm_fault+0x5be0/0x5be0
[  444.138328]  ? find_vma+0x34/0x190
[  444.141888]  __do_page_fault+0x5e8/0xe60
[  444.145964]  ? trace_hardirqs_off+0xb8/0x310
[  444.150399]  do_page_fault+0xf2/0x7e0
[  444.154215]  ? vmalloc_sync_all+0x30/0x30
[  444.158376]  ? error_entry+0x70/0xd0
[  444.162121]  ? trace_hardirqs_off_caller+0xbb/0x310
[  444.167148]  ? trace_hardirqs_on_caller+0xc0/0x310
[  444.172109]  ? syscall_return_slowpath+0x5e0/0x5e0
[  444.177047]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  444.181925]  ? trace_hardirqs_on_caller+0x310/0x310
[  444.186952]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  444.192425]  ? prepare_exit_to_usermode+0x291/0x3b0
[  444.197468]  ? page_fault+0x8/0x30
[  444.201025]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  444.205881]  ? page_fault+0x8/0x30
[  444.209444]  page_fault+0x1e/0x30
[  444.212904] RIP: 0033:0x45ddf3
[  444.216125] Code: Bad RIP value.
[  444.219540] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  444.224917] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  444.232200] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  444.239481] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  444.246761] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  444.254043] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  444.261364] warn_alloc_show_mem: 1 callbacks suppressed
[  444.261377] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  444.261378] Mem-Info:
[  444.261409] active_anon:45985 inactive_anon:296 isolated_anon:0
[  444.261409]  active_file:15 inactive_file:8 isolated_file:0
[  444.261409]  unevictable:0 dirty:0 writeback:0 unstable:0
[  444.261409]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  444.261409]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  444.261409]  free:13771 free_pcp:249 free_cma:0
[  444.266761] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  444.274152] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  444.276569] Call Trace:
[  444.309369] 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
[  444.318740]  <IRQ>
[  444.346412] lowmem_reserve[]: 0 2818 6321 6321
[  444.349031]  dump_stack+0x244/0x39d
[  444.375181] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  444.377355]  ? dump_stack_print_info.cold.1+0x20/0x20
[  444.381917] lowmem_reserve[]: 0 0 3503 3503
[  444.385566]  warn_alloc.cold.116+0xb7/0x1bd
[  444.413112] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  444.418323]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  444.422618] lowmem_reserve[]: 0 0 0 0
[  444.426963]  ? lock_downgrade+0x900/0x900
[  444.455974] 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
[  444.460836]  ? trace_hardirqs_off+0xb8/0x310
[  444.464621] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  444.468786]  ? trace_hardirqs_off+0xb8/0x310
[  444.482304] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  444.486731]  __alloc_pages_slowpath+0x2651/0x2de0
[  444.501853] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  444.506293]  ? warn_alloc+0x120/0x120
[  444.521707] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  444.526563]  ? warn_alloc+0x120/0x120
[  444.535391] 376 total pagecache pages
[  444.539203]  ? warn_alloc+0x120/0x120
[  444.547772] 0 pages in swap cache
[  444.551585]  ? print_usage_bug+0xc0/0xc0
[  444.555368] Swap cache stats: add 0, delete 0, find 0/0
[  444.559177]  ? print_usage_bug+0xc0/0xc0
[  444.562616] Free swap  = 0kB
[  444.566687]  ? mark_held_locks+0x130/0x130
[  444.572026] Total swap = 0kB
[  444.572034] 1965979 pages RAM
[  444.576124]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  444.579117] 0 pages HighMem/MovableOnly
[  444.579126] 342854 pages reserved
[  444.583371]  ? should_fail+0x22d/0xd01
[  444.586369] 0 pages cma reserved
[  444.589485]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  444.595083] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  444.598981]  ? __lock_acquire+0x62f/0x4c20
[  444.599001]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  444.599017]  ? should_fail+0x22d/0xd01
[  444.602534] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  444.606365]  ? mark_held_locks+0x130/0x130
[  444.609710] syz-fuzzer cpuset=/ mems_allowed=0
[  444.614824]  ? mark_held_locks+0x130/0x130
[  444.657802]  ? print_usage_bug+0xc0/0xc0
[  444.661896]  ? find_held_lock+0x36/0x1c0
[  444.665983]  ? zap_class+0x640/0x640
[  444.669722]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.675281]  ? check_preemption_disabled+0x48/0x280
[  444.680327]  ? __lock_is_held+0xb5/0x140
[  444.684417]  __alloc_pages_nodemask+0xad8/0xea0
[  444.689120]  ? zap_class+0x640/0x640
[  444.693088]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  444.698136]  ? find_held_lock+0x36/0x1c0
[  444.702225]  ? ____cache_alloc_node+0x1c7/0x1e0
[  444.706909]  ? lock_downgrade+0x900/0x900
[  444.711106]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.716670]  cache_grow_begin+0xa5/0x8c0
[  444.720750]  ? do_raw_spin_unlock+0xa7/0x330
[  444.725187]  fallback_alloc+0x204/0x2e0
[  444.729187]  ____cache_alloc_node+0x1c7/0x1e0
[  444.733704]  kmem_cache_alloc_node+0xe3/0x730
[  444.738216]  ? mark_held_locks+0xc7/0x130
[  444.742393]  __alloc_skb+0x119/0x770
[  444.746129]  ? netdev_alloc_frag+0x1f0/0x1f0
[  444.750555]  ? do_raw_spin_trylock+0x270/0x270
[  444.755158]  ? kmem_cache_alloc_trace+0x353/0x750
[  444.760025]  ? queue_work_on+0x12c/0x1e0
[  444.764125]  ? switchdev_port_obj_del+0xe3/0x450
[  444.768897]  ? switchdev_trans_item_enqueue+0x260/0x260
[  444.774289]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  444.779330]  __br_mdb_notify+0x4ff/0x15d0
[  444.783507]  ? __br_mdb_add+0x7f0/0x7f0
[  444.787512]  ? zap_class+0x640/0x640
[  444.791258]  ? br_multicast_group_expired+0x96/0x610
[  444.796381]  ? lock_downgrade+0x900/0x900
[  444.800554]  br_mdb_notify+0x310/0x410
[  444.804460]  ? br_mdb_dump+0x27b0/0x27b0
[  444.808548]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.814129]  br_multicast_group_expired+0x1bc/0x610
[  444.819172]  ? br_mdb_free+0x80/0x80
[  444.822917]  call_timer_fn+0x272/0x920
[  444.826825]  ? br_mdb_free+0x80/0x80
[  444.830555]  ? process_timeout+0x40/0x40
[  444.834637]  ? __run_timers+0x7da/0xc70
[  444.838631]  ? _raw_spin_unlock_irq+0x27/0x80
[  444.843144]  ? _raw_spin_unlock_irq+0x27/0x80
[  444.847654]  ? br_mdb_free+0x80/0x80
[  444.851386]  ? lockdep_hardirqs_on+0x296/0x5b0
[  444.855986]  ? trace_hardirqs_on+0xbd/0x310
[  444.860324]  ? kasan_check_read+0x11/0x20
[  444.864497]  ? __run_timers+0x7da/0xc70
[  444.868487]  ? trace_hardirqs_off_caller+0x310/0x310
[  444.873613]  ? br_mdb_free+0x80/0x80
[  444.877348]  ? br_mdb_free+0x80/0x80
[  444.881097]  __run_timers+0x7e5/0xc70
[  444.884922]  ? timer_fixup_init+0x70/0x70
[  444.889105]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  444.894141]  ? zap_class+0x640/0x640
[  444.897877]  ? enqueue_hrtimer+0x1a5/0x560
[  444.902131]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  444.907350]  ? find_held_lock+0x36/0x1c0
[  444.911432]  ? zap_class+0x640/0x640
[  444.915164]  ? pvclock_read_flags+0x160/0x160
[  444.919677]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.925234]  ? check_preemption_disabled+0x48/0x280
[  444.930282]  ? __lock_is_held+0xb5/0x140
[  444.934365]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.939921]  ? check_preemption_disabled+0x48/0x280
[  444.944971]  run_timer_softirq+0x52/0xb0
[  444.949050]  ? rcu_read_lock_sched_held+0x14f/0x180
[  444.954121]  __do_softirq+0x308/0xb7e
[  444.957949]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  444.962459]  ? lock_downgrade+0x900/0x900
[  444.966632]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  444.971761]  ? pvclock_read_flags+0x160/0x160
[  444.976275]  ? lapic_next_event+0x5a/0x90
[  444.980441]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.986004]  ? kvm_clock_read+0x18/0x30
[  444.989996]  ? kvm_sched_clock_read+0x9/0x20
[  444.994423]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.000093]  ? check_preemption_disabled+0x48/0x280
[  445.005139]  irq_exit+0x17f/0x1c0
[  445.008613]  smp_apic_timer_interrupt+0x1cb/0x760
[  445.013470]  ? smp_reschedule_interrupt+0x109/0x650
[  445.018503]  ? smp_call_function_single_interrupt+0x650/0x650
[  445.024406]  ? interrupt_entry+0xb5/0xc0
[  445.028488]  ? trace_hardirqs_off_caller+0xbb/0x310
[  445.033521]  ? trace_hardirqs_off_caller+0xbb/0x310
[  445.038562]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  445.043424]  ? trace_hardirqs_on_caller+0x310/0x310
[  445.048458]  ? trace_hardirqs_on_caller+0x310/0x310
[  445.053490]  ? task_prio+0x50/0x50
[  445.057047]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.062624]  ? check_preemption_disabled+0x48/0x280
[  445.067661]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  445.072535]  apic_timer_interrupt+0xf/0x20
[  445.076777]  </IRQ>
[  445.079034] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  445.083995] 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 42 f3
[  445.102920] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  445.110653] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  445.117944] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  445.125232] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  445.132520] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  445.139805] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  445.147153]  skb_clone+0x1bb/0x500
[  445.150719]  ? skb_split+0x11e0/0x11e0
[  445.154631]  ? check_preemption_disabled+0x48/0x280
[  445.159672]  ? __this_cpu_preempt_check+0x1c/0x20
[  445.164549]  ? __bpf_redirect+0x55b/0xb60
[  445.168733]  ? __switch_to_asm+0x34/0x70
[  445.172811]  ? __switch_to_asm+0x40/0x70
[  445.176894]  bpf_clone_redirect+0xb9/0x490
[  445.181424]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  445.186468]  ? __sched_text_start+0x8/0x8
[  445.190646]  ? find_held_lock+0x36/0x1c0
[  445.194731]  ? lock_acquire+0x1ed/0x520
[  445.198723]  ? bpf_test_run+0x3cb/0x780
[  445.202711]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.208266]  ? check_preemption_disabled+0x48/0x280
[  445.213305]  ? kasan_check_read+0x11/0x20
[  445.217469]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  445.222758]  ? rcu_softirq_qs+0x20/0x20
[  445.226754]  ? preempt_schedule+0x4d/0x60
[  445.230916]  ? ___preempt_schedule+0x16/0x18
[  445.235356]  ? bpf_test_run+0x25d/0x780
[  445.239356]  ? netlink_diag_dump+0x2a0/0x2a0
[  445.243800]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  445.249357]  ? bpf_test_init.isra.10+0x70/0x100
[  445.254054]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  445.258853]  ? bpf_test_finish.isra.9+0x260/0x260
[  445.263710]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  445.269265]  ? fput+0x130/0x1a0
[  445.272565]  ? __bpf_prog_get+0x9b/0x290
[  445.276645]  ? bpf_test_finish.isra.9+0x260/0x260
[  445.281513]  ? bpf_prog_test_run+0x130/0x1a0
[  445.285961]  ? __x64_sys_bpf+0x3db/0x520
[  445.290039]  ? bpf_prog_get+0x20/0x20
[  445.293893]  ? do_syscall_64+0x1b9/0x820
[  445.297976]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  445.303361]  ? syscall_return_slowpath+0x5e0/0x5e0
[  445.308304]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  445.313167]  ? trace_hardirqs_on_caller+0x310/0x310
[  445.318208]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  445.323244]  ? prepare_exit_to_usermode+0x291/0x3b0
[  445.328287]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  445.333157]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  445.338559] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  445.338719] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  445.345598] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  445.356106] syz-executor0 cpuset=syz0 mems_allowed=0
[  445.365470] Call Trace:
[  445.373161]  <IRQ>
[  445.375334]  dump_stack+0x244/0x39d
[  445.378976]  ? dump_stack_print_info.cold.1+0x20/0x20
[  445.384193]  warn_alloc.cold.116+0xb7/0x1bd
[  445.388531]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  445.393393]  ? lock_downgrade+0x900/0x900
[  445.397561]  ? trace_hardirqs_off+0xb8/0x310
[  445.401987]  ? trace_hardirqs_off+0xb8/0x310
[  445.406415]  __alloc_pages_slowpath+0x2651/0x2de0
[  445.411302]  ? warn_alloc+0x120/0x120
[  445.415141]  ? print_usage_bug+0xc0/0xc0
[  445.419215]  ? warn_alloc+0x120/0x120
[  445.423029]  ? warn_alloc+0x120/0x120
[  445.426845]  ? print_usage_bug+0xc0/0xc0
[  445.430922]  ? print_usage_bug+0xc0/0xc0
[  445.435000]  ? __lock_acquire+0x62f/0x4c20
[  445.439253]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  445.444802]  ? should_fail+0x22d/0xd01
[  445.448712]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  445.453832]  ? __lock_acquire+0x62f/0x4c20
[  445.458103]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  445.463221]  ? __lock_acquire+0x62f/0x4c20
[  445.467467]  ? should_fail+0x22d/0xd01
[  445.471365]  ? find_held_lock+0x36/0x1c0
[  445.475451]  ? mark_held_locks+0x130/0x130
[  445.479702]  ? mark_held_locks+0x130/0x130
[  445.483947]  ? try_to_wake_up+0x11c/0x1490
[  445.488198]  ? lock_downgrade+0x900/0x900
[  445.492363]  ? zap_class+0x640/0x640
[  445.496106]  ? print_usage_bug+0xc0/0xc0
[  445.500180]  ? trace_hardirqs_off+0xb8/0x310
[  445.504598]  ? kasan_check_read+0x11/0x20
[  445.508766]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.514324]  ? check_preemption_disabled+0x48/0x280
[  445.519365]  ? __lock_is_held+0xb5/0x140
[  445.523454]  __alloc_pages_nodemask+0xad8/0xea0
[  445.528140]  ? zap_class+0x640/0x640
[  445.531870]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  445.536913]  ? find_held_lock+0x36/0x1c0
[  445.541000]  ? ____cache_alloc_node+0x1c7/0x1e0
[  445.545688]  ? lock_downgrade+0x900/0x900
[  445.549858]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.555417]  cache_grow_begin+0xa5/0x8c0
[  445.559497]  ? do_raw_spin_unlock+0xa7/0x330
[  445.563924]  fallback_alloc+0x204/0x2e0
[  445.567918]  ____cache_alloc_node+0x1c7/0x1e0
[  445.572437]  kmem_cache_alloc_node+0xe3/0x730
[  445.576947]  ? ipv6_get_ifaddr+0x42e/0x620
[  445.581203]  __alloc_skb+0x119/0x770
[  445.584925]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  445.590223]  ? netdev_alloc_frag+0x1f0/0x1f0
[  445.594648]  ? lock_downgrade+0x900/0x900
[  445.598818]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.604367]  ? refcount_sub_and_test_checked+0x203/0x310
[  445.609835]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  445.615316]  ? addrconf_rs_timer+0x690/0x690
[  445.619750]  ndisc_alloc_skb+0x144/0x340
[  445.623830]  ndisc_send_rs+0x331/0x6e0
[  445.627737]  addrconf_rs_timer+0x314/0x690
[  445.631992]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  445.636251]  call_timer_fn+0x272/0x920
[  445.640154]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  445.644400]  ? process_timeout+0x40/0x40
[  445.648485]  ? mark_held_locks+0xc7/0x130
[  445.652648]  ? _raw_spin_unlock_irq+0x27/0x80
[  445.657159]  ? _raw_spin_unlock_irq+0x27/0x80
[  445.661669]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  445.665917]  ? lockdep_hardirqs_on+0x296/0x5b0
[  445.670517]  ? trace_hardirqs_on+0xbd/0x310
[  445.674849]  ? kasan_check_read+0x11/0x20
[  445.679006]  ? __run_timers+0x7da/0xc70
[  445.682996]  ? trace_hardirqs_off_caller+0x310/0x310
[  445.688125]  ? __queue_work+0x1440/0x1440
[  445.692292]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  445.696538]  __run_timers+0x7e5/0xc70
[  445.700361]  ? timer_fixup_init+0x70/0x70
[  445.704524]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  445.709557]  ? zap_class+0x640/0x640
[  445.713288]  ? print_usage_bug+0xc0/0xc0
[  445.717365]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  445.722575]  ? find_held_lock+0x36/0x1c0
[  445.726651]  ? zap_class+0x640/0x640
[  445.730384]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.735935]  ? check_preemption_disabled+0x48/0x280
[  445.740973]  ? __lock_is_held+0xb5/0x140
[  445.745047]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.750616]  ? check_preemption_disabled+0x48/0x280
[  445.755648]  run_timer_softirq+0x52/0xb0
[  445.759723]  ? rcu_read_lock_sched_held+0x14f/0x180
[  445.764765]  __do_softirq+0x308/0xb7e
[  445.768576]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  445.773098]  ? lock_downgrade+0x900/0x900
[  445.777267]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  445.782388]  ? pvclock_read_flags+0x160/0x160
[  445.786901]  ? lapic_next_event+0x5a/0x90
[  445.791061]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.796638]  ? kvm_clock_read+0x18/0x30
[  445.800634]  ? kvm_sched_clock_read+0x9/0x20
[  445.805052]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  445.810618]  ? check_preemption_disabled+0x48/0x280
[  445.815656]  irq_exit+0x17f/0x1c0
[  445.819121]  smp_apic_timer_interrupt+0x1cb/0x760
[  445.823974]  ? smp_reschedule_interrupt+0x109/0x650
[  445.829000]  ? smp_call_function_single_interrupt+0x650/0x650
[  445.834892]  ? interrupt_entry+0xb5/0xc0
[  445.838966]  ? trace_hardirqs_off_caller+0xbb/0x310
[  445.843991]  ? trace_hardirqs_off_caller+0xbb/0x310
[  445.849019]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  445.853870]  ? trace_hardirqs_on_caller+0x310/0x310
[  445.858893]  ? trace_hardirqs_on_caller+0x310/0x310
[  445.863928]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  445.868793]  apic_timer_interrupt+0xf/0x20
[  445.873027]  </IRQ>
[  445.875283] RIP: 0010:dump_stack+0x358/0x39d
[  445.879705] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  445.898612] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  445.906326] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  445.913600] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  445.920875] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  445.928150] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  445.935434] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  445.942735]  ? dump_stack+0x34f/0x39d
[  445.946562]  ? dump_stack_print_info.cold.1+0x20/0x20
[  445.951767]  ? mark_held_locks+0x130/0x130
[  445.956011]  ? mark_held_locks+0x130/0x130
[  445.960259]  dump_header+0x27b/0xf72
[  445.963993]  ? pagefault_out_of_memory+0x197/0x197
[  445.968939]  ? __lock_acquire+0x62f/0x4c20
[  445.973184]  ? percpu_ref_get_many+0x240/0x240
[  445.977780]  ? print_usage_bug+0xc0/0xc0
[  445.981861]  ? zap_class+0x640/0x640
[  445.985588]  ? print_usage_bug+0xc0/0xc0
[  445.989661]  ? print_usage_bug+0xc0/0xc0
[  445.993732]  ? zap_class+0x640/0x640
[  445.997471]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.003020]  ? find_held_lock+0x36/0x1c0
[  446.007114]  ? mark_held_locks+0xc7/0x130
[  446.011275]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  446.016385]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  446.021499]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  446.026106]  ? trace_hardirqs_on+0xbd/0x310
[  446.030442]  ? kasan_check_read+0x11/0x20
[  446.034599]  ? ___ratelimit+0x3b4/0x672
[  446.038582]  ? trace_hardirqs_off_caller+0x310/0x310
[  446.043694]  ? trace_hardirqs_on+0x310/0x310
[  446.048137]  ? lock_downgrade+0x900/0x900
[  446.052300]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  446.057415]  ? ___ratelimit+0x3b9/0x672
[  446.061405]  ? idr_get_free+0xf70/0xf70
[  446.065389]  ? find_held_lock+0x36/0x1c0
[  446.069470]  oom_kill_process.cold.27+0x10/0x903
[  446.074238]  ? zap_class+0x640/0x640
[  446.077966]  ? check_preemption_disabled+0x48/0x280
[  446.082998]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  446.087936]  ? kasan_check_read+0x11/0x20
[  446.092114]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  446.097400]  ? oom_evaluate_task+0x540/0x540
[  446.101826]  ? find_held_lock+0x36/0x1c0
[  446.105906]  ? out_of_memory+0x974/0x1430
[  446.110084]  ? lock_downgrade+0x900/0x900
[  446.114247]  ? check_preemption_disabled+0x48/0x280
[  446.119276]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  446.124215]  ? kasan_check_read+0x11/0x20
[  446.128372]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  446.133657]  ? rcu_softirq_qs+0x20/0x20
[  446.137644]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  446.143189]  ? oom_evaluate_task+0x302/0x540
[  446.147608]  out_of_memory+0xa84/0x1430
[  446.151687]  ? oom_killer_disable+0x3a0/0x3a0
[  446.156191]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  446.161138]  ? __ww_mutex_check_waiters+0x160/0x160
[  446.166178]  __alloc_pages_slowpath+0x232c/0x2de0
[  446.171057]  ? warn_alloc+0x120/0x120
[  446.174885]  ? mark_held_locks+0x130/0x130
[  446.179137]  ? find_get_entry+0xaae/0x1120
[  446.183393]  ? filemap_map_pages+0x1a20/0x1a20
[  446.187991]  ? zap_class+0x640/0x640
[  446.191718]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.197272]  ? check_preemption_disabled+0x48/0x280
[  446.202296]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  446.207841]  ? should_fail+0x22d/0xd01
[  446.211742]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  446.216857]  ? zap_class+0x640/0x640
[  446.220606]  ? __lock_is_held+0xb5/0x140
[  446.224683]  ? mark_held_locks+0x130/0x130
[  446.228933]  ? lock_release+0xa00/0xa00
[  446.232919]  ? perf_trace_sched_process_exec+0x860/0x860
[  446.238377]  ? xa_load+0x2ba/0x460
[  446.241929]  ? lock_downgrade+0x900/0x900
[  446.246113]  ? __might_sleep+0x95/0x190
[  446.250123]  __alloc_pages_nodemask+0xad8/0xea0
[  446.254812]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  446.259840]  ? __page_cache_alloc+0x191/0x5c0
[  446.264345]  ? xa_load+0x2e1/0x460
[  446.267895]  ? xa_clear_mark+0x40/0x40
[  446.271791]  ? zap_class+0x640/0x640
[  446.275523]  ? zap_class+0x640/0x640
[  446.279249]  ? zap_class+0x640/0x640
[  446.282976]  ? __do_page_cache_readahead+0x663/0x810
[  446.288108]  ? find_held_lock+0x36/0x1c0
[  446.292189]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  446.297746]  alloc_pages_current+0x173/0x350
[  446.302172]  __page_cache_alloc+0x38c/0x5c0
[  446.306504]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  446.311654]  ? kasan_check_read+0x11/0x20
[  446.315810]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  446.321119]  ? generic_perform_write+0x6a0/0x6a0
[  446.325889]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  446.331442]  ? check_preemption_disabled+0x48/0x280
[  446.336490]  filemap_fault+0x1595/0x25f0
[  446.340574]  ? __lock_page_or_retry+0xa00/0xa00
[  446.345257]  ? mark_held_locks+0x130/0x130
[  446.349510]  ? filemap_map_pages+0xd6b/0x1a20
[  446.354020]  ? lock_downgrade+0x900/0x900
[  446.358179]  ? check_preemption_disabled+0x48/0x280
[  446.363210]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  446.368157]  ? kasan_check_read+0x11/0x20
[  446.372314]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  446.377601]  ? rcu_softirq_qs+0x20/0x20
[  446.381598]  ? filemap_map_pages+0xd92/0x1a20
[  446.386129]  ? find_get_entries_tag+0x1400/0x1400
[  446.390987]  ? debug_object_destroy+0x2b0/0x2b0
[  446.395675]  ? lock_pi_update_atomic+0x150/0x150
[  446.400445]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.406011]  ? lock_acquire+0x1ed/0x520
[  446.410041]  ? ext4_filemap_fault+0x7a/0xad
[  446.414396]  ? lock_release+0xa00/0xa00
[  446.418381]  ? perf_trace_sched_process_exec+0x860/0x860
[  446.423840]  ? print_usage_bug+0xc0/0xc0
[  446.427911]  ? print_usage_bug+0xc0/0xc0
[  446.431993]  ? down_read+0x8d/0x120
[  446.435626]  ? ext4_filemap_fault+0x7a/0xad
[  446.439957]  ? __down_interruptible+0x700/0x700
[  446.444646]  ext4_filemap_fault+0x82/0xad
[  446.448807]  __do_fault+0x100/0x6b0
[  446.452451]  ? find_held_lock+0x36/0x1c0
[  446.456528]  ? pmd_devmap_trans_unstable+0x220/0x220
[  446.461642]  ? mark_held_locks+0x130/0x130
[  446.465887]  ? mark_held_locks+0x130/0x130
[  446.470139]  ? debug_smp_processor_id+0x1c/0x20
[  446.474818]  ? perf_trace_lock+0x14d/0x7a0
[  446.479090]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  446.484646]  __handle_mm_fault+0x3ea0/0x5be0
[  446.489093]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  446.493952]  ? lock_is_held_type+0x210/0x210
[  446.498377]  ? __switch_to_asm+0x34/0x70
[  446.502449]  ? __switch_to_asm+0x34/0x70
[  446.506534]  ? zap_class+0x640/0x640
[  446.510255]  ? zap_class+0x640/0x640
[  446.513976]  ? __x64_sys_futex+0x53e/0x6a0
[  446.518226]  ? find_held_lock+0x36/0x1c0
[  446.522311]  ? handle_mm_fault+0x42a/0xc70
[  446.526559]  ? lock_downgrade+0x900/0x900
[  446.530716]  ? check_preemption_disabled+0x48/0x280
[  446.535743]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  446.540685]  ? kasan_check_read+0x11/0x20
[  446.544845]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  446.550132]  ? rcu_softirq_qs+0x20/0x20
[  446.554123]  ? trace_hardirqs_off_caller+0x310/0x310
[  446.559239]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  446.564789]  ? check_preemption_disabled+0x48/0x280
[  446.569820]  handle_mm_fault+0x54f/0xc70
[  446.573899]  ? __handle_mm_fault+0x5be0/0x5be0
[  446.578497]  ? find_vma+0x34/0x190
[  446.582051]  __do_page_fault+0x5e8/0xe60
[  446.586142]  ? trace_hardirqs_off+0xb8/0x310
[  446.590570]  do_page_fault+0xf2/0x7e0
[  446.594383]  ? vmalloc_sync_all+0x30/0x30
[  446.598545]  ? error_entry+0x70/0xd0
[  446.602270]  ? trace_hardirqs_off_caller+0xbb/0x310
[  446.607299]  ? trace_hardirqs_on_caller+0xc0/0x310
[  446.612280]  ? syscall_return_slowpath+0x5e0/0x5e0
[  446.617218]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  446.622089]  ? trace_hardirqs_on_caller+0x310/0x310
[  446.627123]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  446.632585]  ? prepare_exit_to_usermode+0x291/0x3b0
[  446.637614]  ? page_fault+0x8/0x30
[  446.641165]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  446.646023]  ? page_fault+0x8/0x30
[  446.649574]  page_fault+0x1e/0x30
[  446.653036] RIP: 0033:0x45ddf3
[  446.656264] Code: Bad RIP value.
[  446.659632] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  446.665001] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  446.672277] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  446.679553] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  446.686831] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  446.694114] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  446.701408] warn_alloc_show_mem: 1 callbacks suppressed
[  446.701420] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  446.701422] Mem-Info:
[  446.701460] active_anon:45985 inactive_anon:296 isolated_anon:0
[  446.701460]  active_file:15 inactive_file:8 isolated_file:0
[  446.701460]  unevictable:0 dirty:0 writeback:0 unstable:0
[  446.701460]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  446.701460]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  446.701460]  free:13771 free_pcp:249 free_cma:0
[  446.706799] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  446.714170] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  446.716575] Call Trace:
[  446.749369] 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
[  446.758727]  <IRQ>
[  446.786442] lowmem_reserve[]: 0 2818 6321 6321
[  446.789059]  dump_stack+0x244/0x39d
[  446.815175] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  446.817342]  ? dump_stack_print_info.cold.1+0x20/0x20
[  446.821887] lowmem_reserve[]: 0 0 3503 3503
[  446.825536]  warn_alloc.cold.116+0xb7/0x1bd
[  446.853013] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  446.858210]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  446.862504] lowmem_reserve[]: 0 0 0 0
[  446.866841]  ? lock_downgrade+0x900/0x900
[  446.895802] 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
[  446.900658]  ? trace_hardirqs_off+0xb8/0x310
[  446.904437] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  446.908596]  ? trace_hardirqs_off+0xb8/0x310
[  446.922107] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  446.926536]  __alloc_pages_slowpath+0x2651/0x2de0
[  446.941607] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  446.946035]  ? warn_alloc+0x120/0x120
[  446.961434] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  446.961444] 376 total pagecache pages
[  446.966295]  ? warn_alloc+0x120/0x120
[  446.975118] 0 pages in swap cache
[  446.978920]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  446.987481] Swap cache stats: add 0, delete 0, find 0/0
[  446.991282]  ? warn_alloc+0x120/0x120
[  446.995083] Free swap  = 0kB
[  446.998541]  ? print_usage_bug+0xc0/0xc0
[  447.003537] Total swap = 0kB
[  447.008900]  ? print_usage_bug+0xc0/0xc0
[  447.012686] 1965979 pages RAM
[  447.015707]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  447.019750] 0 pages HighMem/MovableOnly
[  447.022779]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  447.026810] 342854 pages reserved
[  447.026818] 0 pages cma reserved
[  447.029927]  ? should_fail+0x22d/0xd01
[  447.035172] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  447.039108]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  447.039124]  ? __lock_acquire+0x62f/0x4c20
[  447.039141]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  447.044722] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  447.048121]  ? should_fail+0x22d/0xd01
[  447.051478] syz-fuzzer cpuset=/ mems_allowed=0
[  447.055374]  ? mark_held_locks+0x130/0x130
[  447.099190]  ? mark_held_locks+0x130/0x130
[  447.103437]  ? print_usage_bug+0xc0/0xc0
[  447.107514]  ? find_held_lock+0x36/0x1c0
[  447.111586]  ? zap_class+0x640/0x640
[  447.115319]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.120866]  ? check_preemption_disabled+0x48/0x280
[  447.125901]  ? __lock_is_held+0xb5/0x140
[  447.129985]  __alloc_pages_nodemask+0xad8/0xea0
[  447.134663]  ? zap_class+0x640/0x640
[  447.138392]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  447.143480]  ? find_held_lock+0x36/0x1c0
[  447.147563]  ? ____cache_alloc_node+0x1c7/0x1e0
[  447.152246]  ? lock_downgrade+0x900/0x900
[  447.156411]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.161972]  cache_grow_begin+0xa5/0x8c0
[  447.166046]  ? do_raw_spin_unlock+0xa7/0x330
[  447.170488]  fallback_alloc+0x204/0x2e0
[  447.174478]  ____cache_alloc_node+0x1c7/0x1e0
[  447.179161]  kmem_cache_alloc_node+0xe3/0x730
[  447.183659]  ? mark_held_locks+0xc7/0x130
[  447.187827]  __alloc_skb+0x119/0x770
[  447.191560]  ? netdev_alloc_frag+0x1f0/0x1f0
[  447.195980]  ? do_raw_spin_trylock+0x270/0x270
[  447.200577]  ? kmem_cache_alloc_trace+0x353/0x750
[  447.205439]  ? queue_work_on+0x12c/0x1e0
[  447.209516]  ? switchdev_port_obj_del+0xe3/0x450
[  447.214281]  ? switchdev_trans_item_enqueue+0x260/0x260
[  447.219663]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  447.224694]  __br_mdb_notify+0x4ff/0x15d0
[  447.228864]  ? __br_mdb_add+0x7f0/0x7f0
[  447.232859]  ? zap_class+0x640/0x640
[  447.236592]  ? br_multicast_group_expired+0x96/0x610
[  447.241705]  ? lock_downgrade+0x900/0x900
[  447.245915]  br_mdb_notify+0x310/0x410
[  447.249821]  ? br_mdb_dump+0x27b0/0x27b0
[  447.253904]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.259473]  br_multicast_group_expired+0x1bc/0x610
[  447.264507]  ? br_mdb_free+0x80/0x80
[  447.268244]  call_timer_fn+0x272/0x920
[  447.272146]  ? br_mdb_free+0x80/0x80
[  447.275868]  ? process_timeout+0x40/0x40
[  447.279963]  ? __run_timers+0x7da/0xc70
[  447.283957]  ? _raw_spin_unlock_irq+0x27/0x80
[  447.288462]  ? _raw_spin_unlock_irq+0x27/0x80
[  447.292972]  ? br_mdb_free+0x80/0x80
[  447.296695]  ? lockdep_hardirqs_on+0x296/0x5b0
[  447.301294]  ? trace_hardirqs_on+0xbd/0x310
[  447.305629]  ? kasan_check_read+0x11/0x20
[  447.309786]  ? __run_timers+0x7da/0xc70
[  447.313775]  ? trace_hardirqs_off_caller+0x310/0x310
[  447.318897]  ? br_mdb_free+0x80/0x80
[  447.322632]  ? br_mdb_free+0x80/0x80
[  447.326356]  __run_timers+0x7e5/0xc70
[  447.330181]  ? timer_fixup_init+0x70/0x70
[  447.334353]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  447.339383]  ? zap_class+0x640/0x640
[  447.343120]  ? enqueue_hrtimer+0x1a5/0x560
[  447.347365]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  447.352565]  ? find_held_lock+0x36/0x1c0
[  447.356634]  ? zap_class+0x640/0x640
[  447.360358]  ? pvclock_read_flags+0x160/0x160
[  447.364865]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.370407]  ? check_preemption_disabled+0x48/0x280
[  447.375439]  ? __lock_is_held+0xb5/0x140
[  447.379504]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.385047]  ? check_preemption_disabled+0x48/0x280
[  447.390085]  run_timer_softirq+0x52/0xb0
[  447.394153]  ? rcu_read_lock_sched_held+0x14f/0x180
[  447.399191]  __do_softirq+0x308/0xb7e
[  447.402999]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  447.407495]  ? lock_downgrade+0x900/0x900
[  447.411652]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  447.416767]  ? pvclock_read_flags+0x160/0x160
[  447.421265]  ? lapic_next_event+0x5a/0x90
[  447.425419]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.430983]  ? kvm_clock_read+0x18/0x30
[  447.434962]  ? kvm_sched_clock_read+0x9/0x20
[  447.439401]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.444958]  ? check_preemption_disabled+0x48/0x280
[  447.449985]  irq_exit+0x17f/0x1c0
[  447.453448]  smp_apic_timer_interrupt+0x1cb/0x760
[  447.458292]  ? smp_reschedule_interrupt+0x109/0x650
[  447.463311]  ? smp_call_function_single_interrupt+0x650/0x650
[  447.469219]  ? interrupt_entry+0xb5/0xc0
[  447.473281]  ? trace_hardirqs_off_caller+0xbb/0x310
[  447.478300]  ? trace_hardirqs_off_caller+0xbb/0x310
[  447.483319]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  447.488163]  ? trace_hardirqs_on_caller+0x310/0x310
[  447.493206]  ? trace_hardirqs_on_caller+0x310/0x310
[  447.498226]  ? task_prio+0x50/0x50
[  447.501785]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.507328]  ? check_preemption_disabled+0x48/0x280
[  447.512351]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  447.517207]  apic_timer_interrupt+0xf/0x20
[  447.521434]  </IRQ>
[  447.523677] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  447.528609] 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 42 f3
[  447.547512] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  447.555221] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  447.562486] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  447.569771] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  447.577063] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  447.584338] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  447.591646]  skb_clone+0x1bb/0x500
[  447.595189]  ? skb_split+0x11e0/0x11e0
[  447.599084]  ? check_preemption_disabled+0x48/0x280
[  447.604123]  ? __this_cpu_preempt_check+0x1c/0x20
[  447.608988]  ? __bpf_redirect+0x55b/0xb60
[  447.613137]  ? __switch_to_asm+0x34/0x70
[  447.617209]  ? __switch_to_asm+0x40/0x70
[  447.621279]  bpf_clone_redirect+0xb9/0x490
[  447.625525]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  447.630547]  ? __sched_text_start+0x8/0x8
[  447.634723]  ? find_held_lock+0x36/0x1c0
[  447.638793]  ? lock_acquire+0x1ed/0x520
[  447.642766]  ? bpf_test_run+0x3cb/0x780
[  447.646754]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.652295]  ? check_preemption_disabled+0x48/0x280
[  447.657321]  ? kasan_check_read+0x11/0x20
[  447.661467]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  447.666739]  ? rcu_softirq_qs+0x20/0x20
[  447.670715]  ? preempt_schedule+0x4d/0x60
[  447.674862]  ? ___preempt_schedule+0x16/0x18
[  447.679279]  ? bpf_test_run+0x25d/0x780
[  447.683267]  ? netlink_diag_dump+0x2a0/0x2a0
[  447.687692]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  447.693249]  ? bpf_test_init.isra.10+0x70/0x100
[  447.697928]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  447.702698]  ? bpf_test_finish.isra.9+0x260/0x260
[  447.707552]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  447.713121]  ? fput+0x130/0x1a0
[  447.716406]  ? __bpf_prog_get+0x9b/0x290
[  447.720485]  ? bpf_test_finish.isra.9+0x260/0x260
[  447.725346]  ? bpf_prog_test_run+0x130/0x1a0
[  447.729757]  ? __x64_sys_bpf+0x3db/0x520
[  447.733816]  ? bpf_prog_get+0x20/0x20
[  447.737639]  ? do_syscall_64+0x1b9/0x820
[  447.741713]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  447.747089]  ? syscall_return_slowpath+0x5e0/0x5e0
[  447.752022]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  447.756871]  ? trace_hardirqs_on_caller+0x310/0x310
[  447.761903]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  447.766925]  ? prepare_exit_to_usermode+0x291/0x3b0
[  447.771971]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  447.776821]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  447.782203] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  447.782359] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  447.789240] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  447.799709] syz-executor0 cpuset=syz0 mems_allowed=0
[  447.809063] Call Trace:
[  447.816725]  <IRQ>
[  447.818884]  dump_stack+0x244/0x39d
[  447.822519]  ? dump_stack_print_info.cold.1+0x20/0x20
[  447.827720]  warn_alloc.cold.116+0xb7/0x1bd
[  447.832043]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  447.836894]  ? lock_downgrade+0x900/0x900
[  447.841077]  ? trace_hardirqs_off+0xb8/0x310
[  447.845496]  ? trace_hardirqs_off+0xb8/0x310
[  447.849910]  __alloc_pages_slowpath+0x2651/0x2de0
[  447.854785]  ? warn_alloc+0x120/0x120
[  447.858588]  ? print_usage_bug+0xc0/0xc0
[  447.862650]  ? warn_alloc+0x120/0x120
[  447.866459]  ? warn_alloc+0x120/0x120
[  447.870263]  ? print_usage_bug+0xc0/0xc0
[  447.874333]  ? print_usage_bug+0xc0/0xc0
[  447.878399]  ? __lock_acquire+0x62f/0x4c20
[  447.882646]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  447.888188]  ? should_fail+0x22d/0xd01
[  447.892090]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  447.897198]  ? __lock_acquire+0x62f/0x4c20
[  447.901440]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  447.906540]  ? __lock_acquire+0x62f/0x4c20
[  447.910772]  ? should_fail+0x22d/0xd01
[  447.914662]  ? find_held_lock+0x36/0x1c0
[  447.918734]  ? mark_held_locks+0x130/0x130
[  447.922975]  ? mark_held_locks+0x130/0x130
[  447.927223]  ? zap_class+0x640/0x640
[  447.930932]  ? zap_class+0x640/0x640
[  447.934646]  ? print_usage_bug+0xc0/0xc0
[  447.938709]  ? do_raw_spin_unlock+0xa7/0x330
[  447.943121]  ? zap_class+0x640/0x640
[  447.946837]  ? print_usage_bug+0xc0/0xc0
[  447.950900]  ? wq_watchdog_touch+0x9c/0xfe
[  447.955140]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.960680]  ? check_preemption_disabled+0x48/0x280
[  447.965710]  ? __lock_is_held+0xb5/0x140
[  447.969778]  __alloc_pages_nodemask+0xad8/0xea0
[  447.974454]  ? zap_class+0x640/0x640
[  447.978173]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  447.983207]  ? find_held_lock+0x36/0x1c0
[  447.987277]  ? ____cache_alloc_node+0x1c7/0x1e0
[  447.991947]  ? lock_downgrade+0x900/0x900
[  447.996145]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.001699]  cache_grow_begin+0xa5/0x8c0
[  448.005759]  ? do_raw_spin_unlock+0xa7/0x330
[  448.010171]  fallback_alloc+0x204/0x2e0
[  448.014153]  ____cache_alloc_node+0x1c7/0x1e0
[  448.018655]  kmem_cache_alloc_node+0xe3/0x730
[  448.023152]  ? ipv6_get_ifaddr+0x42e/0x620
[  448.027395]  __alloc_skb+0x119/0x770
[  448.031112]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  448.036421]  ? netdev_alloc_frag+0x1f0/0x1f0
[  448.040835]  ? lock_downgrade+0x900/0x900
[  448.044993]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.050534]  ? refcount_sub_and_test_checked+0x203/0x310
[  448.055991]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  448.061446]  ? addrconf_rs_timer+0x690/0x690
[  448.065883]  ndisc_alloc_skb+0x144/0x340
[  448.069952]  ndisc_send_rs+0x331/0x6e0
[  448.073865]  addrconf_rs_timer+0x314/0x690
[  448.078107]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  448.082369]  call_timer_fn+0x272/0x920
[  448.086254]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  448.090488]  ? process_timeout+0x40/0x40
[  448.094573]  ? mark_held_locks+0xc7/0x130
[  448.098745]  ? _raw_spin_unlock_irq+0x27/0x80
[  448.103241]  ? _raw_spin_unlock_irq+0x27/0x80
[  448.107736]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  448.111971]  ? lockdep_hardirqs_on+0x296/0x5b0
[  448.116555]  ? trace_hardirqs_on+0xbd/0x310
[  448.120890]  ? kasan_check_read+0x11/0x20
[  448.125039]  ? __run_timers+0x7da/0xc70
[  448.129030]  ? trace_hardirqs_off_caller+0x310/0x310
[  448.134136]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  448.138381]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  448.142616]  __run_timers+0x7e5/0xc70
[  448.146429]  ? timer_fixup_init+0x70/0x70
[  448.150587]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  448.155604]  ? zap_class+0x640/0x640
[  448.159324]  ? print_usage_bug+0xc0/0xc0
[  448.163389]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  448.168591]  ? find_held_lock+0x36/0x1c0
[  448.172659]  ? zap_class+0x640/0x640
[  448.176379]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.181916]  ? check_preemption_disabled+0x48/0x280
[  448.186942]  ? __lock_is_held+0xb5/0x140
[  448.191006]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.196548]  ? check_preemption_disabled+0x48/0x280
[  448.201568]  run_timer_softirq+0x52/0xb0
[  448.205629]  ? rcu_read_lock_sched_held+0x14f/0x180
[  448.210646]  __do_softirq+0x308/0xb7e
[  448.214456]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  448.218950]  ? lock_downgrade+0x900/0x900
[  448.223112]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  448.228245]  ? pvclock_read_flags+0x160/0x160
[  448.232746]  ? lapic_next_event+0x5a/0x90
[  448.236900]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.242448]  ? kvm_clock_read+0x18/0x30
[  448.246424]  ? kvm_sched_clock_read+0x9/0x20
[  448.250841]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  448.256384]  ? check_preemption_disabled+0x48/0x280
[  448.261410]  irq_exit+0x17f/0x1c0
[  448.264870]  smp_apic_timer_interrupt+0x1cb/0x760
[  448.269710]  ? smp_reschedule_interrupt+0x109/0x650
[  448.274728]  ? smp_call_function_single_interrupt+0x650/0x650
[  448.280611]  ? interrupt_entry+0xb5/0xc0
[  448.284679]  ? trace_hardirqs_off_caller+0xbb/0x310
[  448.289695]  ? trace_hardirqs_off_caller+0xbb/0x310
[  448.294718]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  448.299563]  ? trace_hardirqs_on_caller+0x310/0x310
[  448.304579]  ? trace_hardirqs_on_caller+0x310/0x310
[  448.309605]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  448.314603]  apic_timer_interrupt+0xf/0x20
[  448.318830]  </IRQ>
[  448.321080] RIP: 0010:dump_stack+0x358/0x39d
[  448.325500] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  448.344400] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  448.352126] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  448.359392] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  448.366663] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  448.373928] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  448.381200] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  448.388506]  ? dump_stack+0x34f/0x39d
[  448.392327]  ? dump_stack_print_info.cold.1+0x20/0x20
[  448.397521]  ? mark_held_locks+0x130/0x130
[  448.401759]  ? mark_held_locks+0x130/0x130
[  448.405997]  dump_header+0x27b/0xf72
[  448.409738]  ? pagefault_out_of_memory+0x197/0x197
[  448.414682]  ? __lock_acquire+0x62f/0x4c20
[  448.418921]  ? percpu_ref_get_many+0x240/0x240
[  448.423508]  ? print_usage_bug+0xc0/0xc0
[  448.427578]  ? zap_class+0x640/0x640
[  448.431293]  ? print_usage_bug+0xc0/0xc0
[  448.435354]  ? print_usage_bug+0xc0/0xc0
[  448.439419]  ? zap_class+0x640/0x640
[  448.443145]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.448693]  ? find_held_lock+0x36/0x1c0
[  448.452764]  ? mark_held_locks+0xc7/0x130
[  448.456919]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  448.462023]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  448.467162]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  448.471743]  ? trace_hardirqs_on+0xbd/0x310
[  448.476076]  ? kasan_check_read+0x11/0x20
[  448.480230]  ? ___ratelimit+0x3b4/0x672
[  448.484209]  ? trace_hardirqs_off_caller+0x310/0x310
[  448.489315]  ? trace_hardirqs_on+0x310/0x310
[  448.493725]  ? lock_downgrade+0x900/0x900
[  448.497878]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  448.502999]  ? ___ratelimit+0x3b9/0x672
[  448.506974]  ? idr_get_free+0xf70/0xf70
[  448.510950]  ? find_held_lock+0x36/0x1c0
[  448.515027]  oom_kill_process.cold.27+0x10/0x903
[  448.519783]  ? zap_class+0x640/0x640
[  448.523499]  ? check_preemption_disabled+0x48/0x280
[  448.528526]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  448.533464]  ? kasan_check_read+0x11/0x20
[  448.537616]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  448.542922]  ? oom_evaluate_task+0x540/0x540
[  448.547369]  ? find_held_lock+0x36/0x1c0
[  448.551444]  ? out_of_memory+0x974/0x1430
[  448.555594]  ? lock_downgrade+0x900/0x900
[  448.559748]  ? check_preemption_disabled+0x48/0x280
[  448.564772]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  448.569700]  ? kasan_check_read+0x11/0x20
[  448.573845]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  448.579124]  ? rcu_softirq_qs+0x20/0x20
[  448.583108]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  448.588644]  ? oom_evaluate_task+0x302/0x540
[  448.593061]  out_of_memory+0xa84/0x1430
[  448.597055]  ? oom_killer_disable+0x3a0/0x3a0
[  448.601564]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  448.606498]  ? __ww_mutex_check_waiters+0x160/0x160
[  448.611532]  __alloc_pages_slowpath+0x232c/0x2de0
[  448.616410]  ? warn_alloc+0x120/0x120
[  448.620214]  ? mark_held_locks+0x130/0x130
[  448.624462]  ? find_get_entry+0xaae/0x1120
[  448.628708]  ? filemap_map_pages+0x1a20/0x1a20
[  448.633296]  ? zap_class+0x640/0x640
[  448.637016]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.642560]  ? check_preemption_disabled+0x48/0x280
[  448.647578]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  448.653133]  ? should_fail+0x22d/0xd01
[  448.657026]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  448.662131]  ? zap_class+0x640/0x640
[  448.665913]  ? __lock_is_held+0xb5/0x140
[  448.670005]  ? mark_held_locks+0x130/0x130
[  448.674270]  ? lock_release+0xa00/0xa00
[  448.678247]  ? perf_trace_sched_process_exec+0x860/0x860
[  448.683702]  ? xa_load+0x2ba/0x460
[  448.687243]  ? lock_downgrade+0x900/0x900
[  448.691397]  ? __might_sleep+0x95/0x190
[  448.695380]  __alloc_pages_nodemask+0xad8/0xea0
[  448.700082]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  448.705113]  ? __page_cache_alloc+0x191/0x5c0
[  448.709606]  ? xa_load+0x2e1/0x460
[  448.713146]  ? xa_clear_mark+0x40/0x40
[  448.717038]  ? zap_class+0x640/0x640
[  448.720771]  ? zap_class+0x640/0x640
[  448.724482]  ? zap_class+0x640/0x640
[  448.728197]  ? __do_page_cache_readahead+0x663/0x810
[  448.733307]  ? find_held_lock+0x36/0x1c0
[  448.737379]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  448.742924]  alloc_pages_current+0x173/0x350
[  448.747343]  __page_cache_alloc+0x38c/0x5c0
[  448.751666]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  448.756594]  ? kasan_check_read+0x11/0x20
[  448.760740]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  448.766019]  ? generic_perform_write+0x6a0/0x6a0
[  448.770777]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  448.776379]  ? check_preemption_disabled+0x48/0x280
[  448.781441]  filemap_fault+0x1595/0x25f0
[  448.785515]  ? __lock_page_or_retry+0xa00/0xa00
[  448.790193]  ? mark_held_locks+0x130/0x130
[  448.794441]  ? filemap_map_pages+0xd6b/0x1a20
[  448.798940]  ? lock_downgrade+0x900/0x900
[  448.803116]  ? check_preemption_disabled+0x48/0x280
[  448.808154]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  448.813092]  ? kasan_check_read+0x11/0x20
[  448.817240]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  448.822520]  ? rcu_softirq_qs+0x20/0x20
[  448.826510]  ? filemap_map_pages+0xd92/0x1a20
[  448.831023]  ? find_get_entries_tag+0x1400/0x1400
[  448.835884]  ? debug_object_destroy+0x2b0/0x2b0
[  448.840571]  ? lock_pi_update_atomic+0x150/0x150
[  448.845330]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.850876]  ? lock_acquire+0x1ed/0x520
[  448.854856]  ? ext4_filemap_fault+0x7a/0xad
[  448.859183]  ? lock_release+0xa00/0xa00
[  448.863160]  ? perf_trace_sched_process_exec+0x860/0x860
[  448.868611]  ? print_usage_bug+0xc0/0xc0
[  448.872705]  ? print_usage_bug+0xc0/0xc0
[  448.876789]  ? down_read+0x8d/0x120
[  448.880412]  ? ext4_filemap_fault+0x7a/0xad
[  448.884734]  ? __down_interruptible+0x700/0x700
[  448.889414]  ext4_filemap_fault+0x82/0xad
[  448.893572]  __do_fault+0x100/0x6b0
[  448.897201]  ? find_held_lock+0x36/0x1c0
[  448.901266]  ? pmd_devmap_trans_unstable+0x220/0x220
[  448.906406]  ? mark_held_locks+0x130/0x130
[  448.910646]  ? mark_held_locks+0x130/0x130
[  448.914885]  ? debug_smp_processor_id+0x1c/0x20
[  448.919556]  ? perf_trace_lock+0x14d/0x7a0
[  448.923798]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  448.929372]  __handle_mm_fault+0x3ea0/0x5be0
[  448.933793]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  448.938636]  ? lock_is_held_type+0x210/0x210
[  448.943096]  ? __switch_to_asm+0x34/0x70
[  448.947175]  ? __switch_to_asm+0x34/0x70
[  448.951262]  ? zap_class+0x640/0x640
[  448.955016]  ? zap_class+0x640/0x640
[  448.958769]  ? __x64_sys_futex+0x53e/0x6a0
[  448.963025]  ? find_held_lock+0x36/0x1c0
[  448.967116]  ? handle_mm_fault+0x42a/0xc70
[  448.971351]  ? lock_downgrade+0x900/0x900
[  448.975515]  ? check_preemption_disabled+0x48/0x280
[  448.980538]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  448.985472]  ? kasan_check_read+0x11/0x20
[  448.989618]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  448.994914]  ? rcu_softirq_qs+0x20/0x20
[  448.998886]  ? trace_hardirqs_off_caller+0x310/0x310
[  449.003992]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  449.009549]  ? check_preemption_disabled+0x48/0x280
[  449.014573]  handle_mm_fault+0x54f/0xc70
[  449.018658]  ? __handle_mm_fault+0x5be0/0x5be0
[  449.023246]  ? find_vma+0x34/0x190
[  449.026789]  __do_page_fault+0x5e8/0xe60
[  449.030854]  ? trace_hardirqs_off+0xb8/0x310
[  449.035279]  do_page_fault+0xf2/0x7e0
[  449.039090]  ? vmalloc_sync_all+0x30/0x30
[  449.043252]  ? error_entry+0x70/0xd0
[  449.046984]  ? trace_hardirqs_off_caller+0xbb/0x310
[  449.052001]  ? trace_hardirqs_on_caller+0xc0/0x310
[  449.056930]  ? syscall_return_slowpath+0x5e0/0x5e0
[  449.061854]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  449.066699]  ? trace_hardirqs_on_caller+0x310/0x310
[  449.071805]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  449.077257]  ? prepare_exit_to_usermode+0x291/0x3b0
[  449.082278]  ? page_fault+0x8/0x30
[  449.085834]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  449.090680]  ? page_fault+0x8/0x30
[  449.094221]  page_fault+0x1e/0x30
[  449.097678] RIP: 0033:0x45ddf3
[  449.100886] Code: Bad RIP value.
[  449.104252] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  449.109612] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  449.116880] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  449.124150] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  449.131414] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  449.138683] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  449.145977] warn_alloc_show_mem: 1 callbacks suppressed
[  449.145989] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  449.145991] Mem-Info:
[  449.146038] active_anon:45985 inactive_anon:296 isolated_anon:0
[  449.146038]  active_file:15 inactive_file:8 isolated_file:0
[  449.146038]  unevictable:0 dirty:0 writeback:0 unstable:0
[  449.146038]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  449.146038]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  449.146038]  free:13771 free_pcp:249 free_cma:0
[  449.151382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  449.158748] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  449.161149] Call Trace:
[  449.194439] 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
[  449.203782]  <IRQ>
[  449.231438] lowmem_reserve[]: 0 2818 6321 6321
[  449.234033]  dump_stack+0x244/0x39d
[  449.260142] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  449.262298]  ? dump_stack_print_info.cold.1+0x20/0x20
[  449.266848] lowmem_reserve[]: 0 0 3503 3503
[  449.270480]  warn_alloc.cold.116+0xb7/0x1bd
[  449.297957] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  449.303146]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  449.307436] lowmem_reserve[]: 0 0 0 0
[  449.311752]  ? lock_downgrade+0x900/0x900
[  449.340701] 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
[  449.345547]  ? trace_hardirqs_off+0xb8/0x310
[  449.349320] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  449.353465]  ? trace_hardirqs_off+0xb8/0x310
[  449.366962] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  449.371370]  __alloc_pages_slowpath+0x2651/0x2de0
[  449.386436] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  449.390851]  ? warn_alloc+0x120/0x120
[  449.406246] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  449.411090]  ? warn_alloc+0x120/0x120
[  449.419898] 376 total pagecache pages
[  449.423693]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  449.432250] 0 pages in swap cache
[  449.436033]  ? warn_alloc+0x120/0x120
[  449.439811] Swap cache stats: add 0, delete 0, find 0/0
[  449.444823]  ? print_usage_bug+0xc0/0xc0
[  449.448249] Free swap  = 0kB
[  449.448257] Total swap = 0kB
[  449.452053]  ? print_usage_bug+0xc0/0xc0
[  449.457403] 1965979 pages RAM
[  449.461456]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  449.464457] 0 pages HighMem/MovableOnly
[  449.467474]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  449.471496] 342854 pages reserved
[  449.471504] 0 pages cma reserved
[  449.474602]  ? should_fail+0x22d/0xd01
[  449.479824] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  449.483734]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  449.489331] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  449.492697]  ? __lock_acquire+0x62f/0x4c20
[  449.496038] syz-fuzzer cpuset=/ mems_allowed=0
[  449.499922]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  449.535566]  ? should_fail+0x22d/0xd01
[  449.539474]  ? mark_held_locks+0x130/0x130
[  449.543712]  ? mark_held_locks+0x130/0x130
[  449.547947]  ? print_usage_bug+0xc0/0xc0
[  449.552027]  ? find_held_lock+0x36/0x1c0
[  449.556097]  ? zap_class+0x640/0x640
[  449.559818]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.565357]  ? check_preemption_disabled+0x48/0x280
[  449.570382]  ? __lock_is_held+0xb5/0x140
[  449.574452]  __alloc_pages_nodemask+0xad8/0xea0
[  449.579125]  ? zap_class+0x640/0x640
[  449.582857]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  449.587885]  ? find_held_lock+0x36/0x1c0
[  449.591959]  ? ____cache_alloc_node+0x1c7/0x1e0
[  449.596628]  ? lock_downgrade+0x900/0x900
[  449.600821]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.606390]  cache_grow_begin+0xa5/0x8c0
[  449.610453]  ? do_raw_spin_unlock+0xa7/0x330
[  449.614874]  fallback_alloc+0x204/0x2e0
[  449.618854]  ____cache_alloc_node+0x1c7/0x1e0
[  449.623361]  kmem_cache_alloc_node+0xe3/0x730
[  449.627857]  ? mark_held_locks+0xc7/0x130
[  449.632015]  __alloc_skb+0x119/0x770
[  449.635737]  ? netdev_alloc_frag+0x1f0/0x1f0
[  449.640143]  ? do_raw_spin_trylock+0x270/0x270
[  449.644739]  ? kmem_cache_alloc_trace+0x353/0x750
[  449.649587]  ? queue_work_on+0x12c/0x1e0
[  449.653657]  ? switchdev_port_obj_del+0xe3/0x450
[  449.658415]  ? switchdev_trans_item_enqueue+0x260/0x260
[  449.663830]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  449.668913]  __br_mdb_notify+0x4ff/0x15d0
[  449.673080]  ? __br_mdb_add+0x7f0/0x7f0
[  449.677090]  ? zap_class+0x640/0x640
[  449.680841]  ? br_multicast_group_expired+0x96/0x610
[  449.685965]  ? lock_downgrade+0x900/0x900
[  449.690119]  br_mdb_notify+0x310/0x410
[  449.694008]  ? br_mdb_dump+0x27b0/0x27b0
[  449.698086]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.703634]  br_multicast_group_expired+0x1bc/0x610
[  449.708657]  ? br_mdb_free+0x80/0x80
[  449.712414]  call_timer_fn+0x272/0x920
[  449.716302]  ? br_mdb_free+0x80/0x80
[  449.720016]  ? process_timeout+0x40/0x40
[  449.724109]  ? __run_timers+0x7da/0xc70
[  449.728112]  ? _raw_spin_unlock_irq+0x27/0x80
[  449.732604]  ? _raw_spin_unlock_irq+0x27/0x80
[  449.737120]  ? br_mdb_free+0x80/0x80
[  449.740835]  ? lockdep_hardirqs_on+0x296/0x5b0
[  449.745418]  ? trace_hardirqs_on+0xbd/0x310
[  449.749744]  ? kasan_check_read+0x11/0x20
[  449.753893]  ? __run_timers+0x7da/0xc70
[  449.757874]  ? trace_hardirqs_off_caller+0x310/0x310
[  449.763042]  ? br_mdb_free+0x80/0x80
[  449.766768]  ? br_mdb_free+0x80/0x80
[  449.770488]  __run_timers+0x7e5/0xc70
[  449.774297]  ? timer_fixup_init+0x70/0x70
[  449.778448]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  449.783472]  ? zap_class+0x640/0x640
[  449.787193]  ? enqueue_hrtimer+0x1a5/0x560
[  449.791431]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  449.796641]  ? find_held_lock+0x36/0x1c0
[  449.800709]  ? zap_class+0x640/0x640
[  449.804428]  ? pvclock_read_flags+0x160/0x160
[  449.808925]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.814474]  ? check_preemption_disabled+0x48/0x280
[  449.819505]  ? __lock_is_held+0xb5/0x140
[  449.823567]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.829119]  ? check_preemption_disabled+0x48/0x280
[  449.834174]  run_timer_softirq+0x52/0xb0
[  449.838240]  ? rcu_read_lock_sched_held+0x14f/0x180
[  449.843260]  __do_softirq+0x308/0xb7e
[  449.847076]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  449.851573]  ? lock_downgrade+0x900/0x900
[  449.855730]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  449.860842]  ? pvclock_read_flags+0x160/0x160
[  449.865343]  ? lapic_next_event+0x5a/0x90
[  449.869494]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.875041]  ? kvm_clock_read+0x18/0x30
[  449.879022]  ? kvm_sched_clock_read+0x9/0x20
[  449.883434]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.888988]  ? check_preemption_disabled+0x48/0x280
[  449.894045]  irq_exit+0x17f/0x1c0
[  449.897511]  smp_apic_timer_interrupt+0x1cb/0x760
[  449.902356]  ? smp_reschedule_interrupt+0x109/0x650
[  449.907406]  ? smp_call_function_single_interrupt+0x650/0x650
[  449.913292]  ? interrupt_entry+0xb5/0xc0
[  449.917389]  ? trace_hardirqs_off_caller+0xbb/0x310
[  449.922418]  ? trace_hardirqs_off_caller+0xbb/0x310
[  449.927439]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  449.932298]  ? trace_hardirqs_on_caller+0x310/0x310
[  449.937312]  ? trace_hardirqs_on_caller+0x310/0x310
[  449.942332]  ? task_prio+0x50/0x50
[  449.945877]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.951420]  ? check_preemption_disabled+0x48/0x280
[  449.956446]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  449.961305]  apic_timer_interrupt+0xf/0x20
[  449.965549]  </IRQ>
[  449.967811] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  449.972757] 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 42 f3
[  449.991655] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  449.999365] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  450.006633] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  450.013900] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  450.021168] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  450.028435] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  450.035746]  skb_clone+0x1bb/0x500
[  450.039307]  ? skb_split+0x11e0/0x11e0
[  450.043195]  ? check_preemption_disabled+0x48/0x280
[  450.048219]  ? __this_cpu_preempt_check+0x1c/0x20
[  450.053061]  ? __bpf_redirect+0x55b/0xb60
[  450.057221]  ? __switch_to_asm+0x34/0x70
[  450.061280]  ? __switch_to_asm+0x40/0x70
[  450.065345]  bpf_clone_redirect+0xb9/0x490
[  450.069588]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  450.074607]  ? __sched_text_start+0x8/0x8
[  450.078786]  ? find_held_lock+0x36/0x1c0
[  450.082882]  ? lock_acquire+0x1ed/0x520
[  450.086856]  ? bpf_test_run+0x3cb/0x780
[  450.090833]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.096374]  ? check_preemption_disabled+0x48/0x280
[  450.101401]  ? kasan_check_read+0x11/0x20
[  450.105547]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  450.110822]  ? rcu_softirq_qs+0x20/0x20
[  450.114803]  ? preempt_schedule+0x4d/0x60
[  450.118955]  ? ___preempt_schedule+0x16/0x18
[  450.123377]  ? bpf_test_run+0x25d/0x780
[  450.127366]  ? netlink_diag_dump+0x2a0/0x2a0
[  450.131781]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  450.137319]  ? bpf_test_init.isra.10+0x70/0x100
[  450.142000]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  450.146767]  ? bpf_test_finish.isra.9+0x260/0x260
[  450.151612]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  450.157166]  ? fput+0x130/0x1a0
[  450.160453]  ? __bpf_prog_get+0x9b/0x290
[  450.164516]  ? bpf_test_finish.isra.9+0x260/0x260
[  450.169361]  ? bpf_prog_test_run+0x130/0x1a0
[  450.173773]  ? __x64_sys_bpf+0x3db/0x520
[  450.177835]  ? bpf_prog_get+0x20/0x20
[  450.181663]  ? do_syscall_64+0x1b9/0x820
[  450.185723]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  450.191096]  ? syscall_return_slowpath+0x5e0/0x5e0
[  450.196025]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  450.200868]  ? trace_hardirqs_on_caller+0x310/0x310
[  450.205904]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  450.210939]  ? prepare_exit_to_usermode+0x291/0x3b0
[  450.215962]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  450.220812]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  450.226213] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  450.226375] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  450.233235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  450.243706] syz-executor0 cpuset=syz0 mems_allowed=0
[  450.253050] Call Trace:
[  450.260721]  <IRQ>
[  450.262922]  dump_stack+0x244/0x39d
[  450.266573]  ? dump_stack_print_info.cold.1+0x20/0x20
[  450.271780]  warn_alloc.cold.116+0xb7/0x1bd
[  450.276111]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  450.280963]  ? lock_downgrade+0x900/0x900
[  450.285121]  ? trace_hardirqs_off+0xb8/0x310
[  450.289537]  ? trace_hardirqs_off+0xb8/0x310
[  450.293958]  __alloc_pages_slowpath+0x2651/0x2de0
[  450.298830]  ? warn_alloc+0x120/0x120
[  450.302632]  ? print_usage_bug+0xc0/0xc0
[  450.306699]  ? warn_alloc+0x120/0x120
[  450.310635]  ? warn_alloc+0x120/0x120
[  450.314429]  ? print_usage_bug+0xc0/0xc0
[  450.318498]  ? kvm_clock_read+0x18/0x30
[  450.322478]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  450.327495]  ? print_usage_bug+0xc0/0xc0
[  450.331555]  ? __lock_acquire+0x62f/0x4c20
[  450.335798]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  450.341340]  ? should_fail+0x22d/0xd01
[  450.345228]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  450.350511]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  450.355619]  ? __lock_acquire+0x62f/0x4c20
[  450.359861]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  450.364965]  ? __lock_acquire+0x62f/0x4c20
[  450.369203]  ? should_fail+0x22d/0xd01
[  450.373095]  ? rcu_irq_exit+0x1a2/0x390
[  450.377120]  ? mark_held_locks+0x130/0x130
[  450.381365]  ? mark_held_locks+0x130/0x130
[  450.385605]  ? mark_held_locks+0xc7/0x130
[  450.389752]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  450.394767]  ? zap_class+0x640/0x640
[  450.398483]  ? print_usage_bug+0xc0/0xc0
[  450.402555]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.408105]  ? check_preemption_disabled+0x48/0x280
[  450.413134]  ? __lock_is_held+0xb5/0x140
[  450.417201]  __alloc_pages_nodemask+0xad8/0xea0
[  450.421870]  ? zap_class+0x640/0x640
[  450.425590]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  450.430622]  ? find_held_lock+0x36/0x1c0
[  450.434708]  ? ____cache_alloc_node+0x1c7/0x1e0
[  450.439375]  ? lock_downgrade+0x900/0x900
[  450.443534]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.449087]  cache_grow_begin+0xa5/0x8c0
[  450.453151]  ? do_raw_spin_unlock+0xa7/0x330
[  450.457570]  fallback_alloc+0x204/0x2e0
[  450.461556]  ____cache_alloc_node+0x1c7/0x1e0
[  450.466057]  kmem_cache_alloc_node+0xe3/0x730
[  450.470563]  ? ipv6_get_ifaddr+0x42e/0x620
[  450.474814]  __alloc_skb+0x119/0x770
[  450.478539]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  450.483828]  ? netdev_alloc_frag+0x1f0/0x1f0
[  450.488237]  ? lock_downgrade+0x900/0x900
[  450.492393]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.497934]  ? refcount_sub_and_test_checked+0x203/0x310
[  450.503402]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  450.508864]  ? addrconf_rs_timer+0x690/0x690
[  450.513284]  ndisc_alloc_skb+0x144/0x340
[  450.517383]  ndisc_send_rs+0x331/0x6e0
[  450.521283]  addrconf_rs_timer+0x314/0x690
[  450.525527]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  450.529834]  call_timer_fn+0x272/0x920
[  450.533719]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  450.537954]  ? process_timeout+0x40/0x40
[  450.542025]  ? mark_held_locks+0xc7/0x130
[  450.546175]  ? _raw_spin_unlock_irq+0x27/0x80
[  450.550672]  ? _raw_spin_unlock_irq+0x27/0x80
[  450.555165]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  450.559405]  ? lockdep_hardirqs_on+0x296/0x5b0
[  450.563992]  ? trace_hardirqs_on+0xbd/0x310
[  450.568312]  ? kasan_check_read+0x11/0x20
[  450.572459]  ? __run_timers+0x7da/0xc70
[  450.576441]  ? trace_hardirqs_off_caller+0x310/0x310
[  450.581552]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  450.585798]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  450.590031]  __run_timers+0x7e5/0xc70
[  450.593861]  ? timer_fixup_init+0x70/0x70
[  450.598013]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  450.603035]  ? zap_class+0x640/0x640
[  450.606794]  ? print_usage_bug+0xc0/0xc0
[  450.610888]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  450.616094]  ? find_held_lock+0x36/0x1c0
[  450.620179]  ? zap_class+0x640/0x640
[  450.623930]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.629469]  ? check_preemption_disabled+0x48/0x280
[  450.634496]  ? __lock_is_held+0xb5/0x140
[  450.638559]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.644112]  ? check_preemption_disabled+0x48/0x280
[  450.649133]  run_timer_softirq+0x52/0xb0
[  450.653198]  ? rcu_read_lock_sched_held+0x14f/0x180
[  450.658218]  __do_softirq+0x308/0xb7e
[  450.662026]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  450.666523]  ? lock_downgrade+0x900/0x900
[  450.670683]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  450.675793]  ? pvclock_read_flags+0x160/0x160
[  450.680307]  ? lapic_next_event+0x5a/0x90
[  450.684472]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.690020]  ? kvm_clock_read+0x18/0x30
[  450.693994]  ? kvm_sched_clock_read+0x9/0x20
[  450.698416]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  450.703963]  ? check_preemption_disabled+0x48/0x280
[  450.708993]  irq_exit+0x17f/0x1c0
[  450.712459]  smp_apic_timer_interrupt+0x1cb/0x760
[  450.717302]  ? smp_reschedule_interrupt+0x109/0x650
[  450.722322]  ? smp_call_function_single_interrupt+0x650/0x650
[  450.728205]  ? interrupt_entry+0xb5/0xc0
[  450.732272]  ? trace_hardirqs_off_caller+0xbb/0x310
[  450.737300]  ? trace_hardirqs_off_caller+0xbb/0x310
[  450.742321]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  450.747168]  ? trace_hardirqs_on_caller+0x310/0x310
[  450.752188]  ? trace_hardirqs_on_caller+0x310/0x310
[  450.757220]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  450.762082]  apic_timer_interrupt+0xf/0x20
[  450.766315]  </IRQ>
[  450.768556] RIP: 0010:dump_stack+0x358/0x39d
[  450.772980] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  450.791971] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  450.799677] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  450.806949] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  450.814218] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  450.821482] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  450.828746] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  450.836041]  ? dump_stack+0x34f/0x39d
[  450.839862]  ? dump_stack_print_info.cold.1+0x20/0x20
[  450.845055]  ? mark_held_locks+0x130/0x130
[  450.849297]  ? mark_held_locks+0x130/0x130
[  450.853537]  dump_header+0x27b/0xf72
[  450.857263]  ? pagefault_out_of_memory+0x197/0x197
[  450.862199]  ? __lock_acquire+0x62f/0x4c20
[  450.866442]  ? percpu_ref_get_many+0x240/0x240
[  450.871028]  ? print_usage_bug+0xc0/0xc0
[  450.875108]  ? zap_class+0x640/0x640
[  450.878844]  ? print_usage_bug+0xc0/0xc0
[  450.882902]  ? print_usage_bug+0xc0/0xc0
[  450.886966]  ? zap_class+0x640/0x640
[  450.890687]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.896229]  ? find_held_lock+0x36/0x1c0
[  450.900312]  ? mark_held_locks+0xc7/0x130
[  450.904466]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  450.909573]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  450.914676]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  450.919265]  ? trace_hardirqs_on+0xbd/0x310
[  450.923589]  ? kasan_check_read+0x11/0x20
[  450.927755]  ? ___ratelimit+0x3b4/0x672
[  450.931736]  ? trace_hardirqs_off_caller+0x310/0x310
[  450.936844]  ? trace_hardirqs_on+0x310/0x310
[  450.941258]  ? lock_downgrade+0x900/0x900
[  450.945412]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  450.950524]  ? ___ratelimit+0x3b9/0x672
[  450.954504]  ? idr_get_free+0xf70/0xf70
[  450.958481]  ? find_held_lock+0x36/0x1c0
[  450.962555]  oom_kill_process.cold.27+0x10/0x903
[  450.967316]  ? zap_class+0x640/0x640
[  450.971033]  ? check_preemption_disabled+0x48/0x280
[  450.976077]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  450.981010]  ? kasan_check_read+0x11/0x20
[  450.985171]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  450.990461]  ? oom_evaluate_task+0x540/0x540
[  450.994875]  ? find_held_lock+0x36/0x1c0
[  450.998945]  ? out_of_memory+0x974/0x1430
[  451.003104]  ? lock_downgrade+0x900/0x900
[  451.007286]  ? check_preemption_disabled+0x48/0x280
[  451.012309]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  451.017246]  ? kasan_check_read+0x11/0x20
[  451.021411]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  451.026695]  ? rcu_softirq_qs+0x20/0x20
[  451.030677]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  451.036219]  ? oom_evaluate_task+0x302/0x540
[  451.040639]  out_of_memory+0xa84/0x1430
[  451.044628]  ? oom_killer_disable+0x3a0/0x3a0
[  451.049135]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  451.054106]  ? __ww_mutex_check_waiters+0x160/0x160
[  451.059174]  __alloc_pages_slowpath+0x232c/0x2de0
[  451.064051]  ? warn_alloc+0x120/0x120
[  451.067861]  ? mark_held_locks+0x130/0x130
[  451.072112]  ? find_get_entry+0xaae/0x1120
[  451.076361]  ? filemap_map_pages+0x1a20/0x1a20
[  451.080968]  ? zap_class+0x640/0x640
[  451.084690]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  451.090236]  ? check_preemption_disabled+0x48/0x280
[  451.095257]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  451.100802]  ? should_fail+0x22d/0xd01
[  451.104728]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  451.109838]  ? zap_class+0x640/0x640
[  451.113584]  ? __lock_is_held+0xb5/0x140
[  451.117655]  ? mark_held_locks+0x130/0x130
[  451.121910]  ? lock_release+0xa00/0xa00
[  451.125889]  ? perf_trace_sched_process_exec+0x860/0x860
[  451.131341]  ? xa_load+0x2ba/0x460
[  451.134885]  ? lock_downgrade+0x900/0x900
[  451.139040]  ? __might_sleep+0x95/0x190
[  451.143028]  __alloc_pages_nodemask+0xad8/0xea0
[  451.147706]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  451.152727]  ? __page_cache_alloc+0x191/0x5c0
[  451.157226]  ? xa_load+0x2e1/0x460
[  451.160767]  ? xa_clear_mark+0x40/0x40
[  451.164658]  ? zap_class+0x640/0x640
[  451.168382]  ? zap_class+0x640/0x640
[  451.172115]  ? zap_class+0x640/0x640
[  451.175837]  ? __do_page_cache_readahead+0x663/0x810
[  451.181426]  ? find_held_lock+0x36/0x1c0
[  451.185502]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  451.191053]  alloc_pages_current+0x173/0x350
[  451.195497]  __page_cache_alloc+0x38c/0x5c0
[  451.199823]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  451.204756]  ? kasan_check_read+0x11/0x20
[  451.208902]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  451.214201]  ? generic_perform_write+0x6a0/0x6a0
[  451.218963]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  451.224506]  ? check_preemption_disabled+0x48/0x280
[  451.229534]  filemap_fault+0x1595/0x25f0
[  451.233612]  ? __lock_page_or_retry+0xa00/0xa00
[  451.238289]  ? mark_held_locks+0x130/0x130
[  451.242537]  ? filemap_map_pages+0xd6b/0x1a20
[  451.247038]  ? lock_downgrade+0x900/0x900
[  451.251197]  ? check_preemption_disabled+0x48/0x280
[  451.256220]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  451.261154]  ? kasan_check_read+0x11/0x20
[  451.265304]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  451.270584]  ? rcu_softirq_qs+0x20/0x20
[  451.274573]  ? filemap_map_pages+0xd92/0x1a20
[  451.279122]  ? find_get_entries_tag+0x1400/0x1400
[  451.283990]  ? debug_object_destroy+0x2b0/0x2b0
[  451.288667]  ? lock_pi_update_atomic+0x150/0x150
[  451.293425]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  451.299334]  ? lock_acquire+0x1ed/0x520
[  451.303310]  ? ext4_filemap_fault+0x7a/0xad
[  451.307643]  ? lock_release+0xa00/0xa00
[  451.311622]  ? perf_trace_sched_process_exec+0x860/0x860
[  451.317085]  ? print_usage_bug+0xc0/0xc0
[  451.321150]  ? print_usage_bug+0xc0/0xc0
[  451.325254]  ? down_read+0x8d/0x120
[  451.328882]  ? ext4_filemap_fault+0x7a/0xad
[  451.333209]  ? __down_interruptible+0x700/0x700
[  451.337887]  ext4_filemap_fault+0x82/0xad
[  451.342041]  __do_fault+0x100/0x6b0
[  451.345677]  ? find_held_lock+0x36/0x1c0
[  451.349747]  ? pmd_devmap_trans_unstable+0x220/0x220
[  451.354852]  ? mark_held_locks+0x130/0x130
[  451.359097]  ? mark_held_locks+0x130/0x130
[  451.363346]  ? debug_smp_processor_id+0x1c/0x20
[  451.368021]  ? perf_trace_lock+0x14d/0x7a0
[  451.372263]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  451.377934]  __handle_mm_fault+0x3ea0/0x5be0
[  451.382360]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  451.387209]  ? lock_is_held_type+0x210/0x210
[  451.391626]  ? __switch_to_asm+0x34/0x70
[  451.395693]  ? __switch_to_asm+0x34/0x70
[  451.399773]  ? zap_class+0x640/0x640
[  451.403486]  ? zap_class+0x640/0x640
[  451.407205]  ? __x64_sys_futex+0x53e/0x6a0
[  451.411451]  ? find_held_lock+0x36/0x1c0
[  451.415528]  ? handle_mm_fault+0x42a/0xc70
[  451.419812]  ? lock_downgrade+0x900/0x900
[  451.424003]  ? check_preemption_disabled+0x48/0x280
[  451.429030]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  451.433963]  ? kasan_check_read+0x11/0x20
[  451.438127]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  451.443408]  ? rcu_softirq_qs+0x20/0x20
[  451.447388]  ? trace_hardirqs_off_caller+0x310/0x310
[  451.452514]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  451.458056]  ? check_preemption_disabled+0x48/0x280
[  451.463140]  handle_mm_fault+0x54f/0xc70
[  451.467207]  ? __handle_mm_fault+0x5be0/0x5be0
[  451.471840]  ? find_vma+0x34/0x190
[  451.475399]  __do_page_fault+0x5e8/0xe60
[  451.479466]  ? trace_hardirqs_off+0xb8/0x310
[  451.483887]  do_page_fault+0xf2/0x7e0
[  451.487689]  ? vmalloc_sync_all+0x30/0x30
[  451.491843]  ? error_entry+0x70/0xd0
[  451.495564]  ? trace_hardirqs_off_caller+0xbb/0x310
[  451.500585]  ? trace_hardirqs_on_caller+0xc0/0x310
[  451.505518]  ? syscall_return_slowpath+0x5e0/0x5e0
[  451.510453]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  451.515308]  ? trace_hardirqs_on_caller+0x310/0x310
[  451.520327]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  451.525785]  ? prepare_exit_to_usermode+0x291/0x3b0
[  451.530850]  ? page_fault+0x8/0x30
[  451.534392]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  451.539249]  ? page_fault+0x8/0x30
[  451.542824]  page_fault+0x1e/0x30
[  451.546277] RIP: 0033:0x45ddf3
[  451.549486] Code: Bad RIP value.
[  451.552848] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  451.558209] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  451.565508] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  451.572780] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  451.580053] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  451.587332] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  451.594630] warn_alloc_show_mem: 1 callbacks suppressed
[  451.594643] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  451.594645] Mem-Info:
[  451.594677] active_anon:45985 inactive_anon:296 isolated_anon:0
[  451.594677]  active_file:15 inactive_file:8 isolated_file:0
[  451.594677]  unevictable:0 dirty:0 writeback:0 unstable:0
[  451.594677]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  451.594677]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  451.594677]  free:13771 free_pcp:249 free_cma:0
[  451.600027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  451.607405] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  451.609847] Call Trace:
[  451.642638] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  451.652032]  <IRQ>
[  451.679706] lowmem_reserve[]: 0 2818 6321 6321
[  451.682303]  dump_stack+0x244/0x39d
[  451.708399] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  451.710560]  ? dump_stack_print_info.cold.1+0x20/0x20
[  451.715143] lowmem_reserve[]: 0 0 3503 3503
[  451.718779]  warn_alloc.cold.116+0xb7/0x1bd
[  451.746254] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  451.751458]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  451.755747] lowmem_reserve[]: 0 0 0 0
[  451.760088]  ? lock_downgrade+0x900/0x900
[  451.789041] 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
[  451.793896]  ? trace_hardirqs_off+0xb8/0x310
[  451.797668] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  451.801825]  ? trace_hardirqs_off+0xb8/0x310
[  451.815340] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  451.819761]  __alloc_pages_slowpath+0x2651/0x2de0
[  451.834833] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  451.839269]  ? warn_alloc+0x120/0x120
[  451.854672] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  451.859520]  ? warn_alloc+0x120/0x120
[  451.868349] 376 total pagecache pages
[  451.872164]  ? warn_alloc+0x120/0x120
[  451.880726] 0 pages in swap cache
[  451.884527]  ? print_usage_bug+0xc0/0xc0
[  451.888298] Swap cache stats: add 0, delete 0, find 0/0
[  451.888307] Free swap  = 0kB
[  451.892128]  ? mark_held_locks+0x130/0x130
[  451.895552] Total swap = 0kB
[  451.899611]  ? kvm_clock_read+0x18/0x30
[  451.904949] 1965979 pages RAM
[  451.907989]  ? print_usage_bug+0xc0/0xc0
[  451.912194] 0 pages HighMem/MovableOnly
[  451.915218]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  451.919155] 342854 pages reserved
[  451.922262]  ? should_fail+0x22d/0xd01
[  451.926296] 0 pages cma reserved
[  451.930274]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  451.935843] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  451.939233]  ? __lock_acquire+0x62f/0x4c20
[  451.939258]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  451.943193] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  451.946499]  ? __lock_acquire+0x62f/0x4c20
[  451.951577] syz-fuzzer cpuset=/ mems_allowed=0
[  451.958068]  ? should_fail+0x22d/0xd01
[  451.958102]  ? mark_held_locks+0x130/0x130
[  451.994543]  ? mark_held_locks+0x130/0x130
[  451.998786]  ? try_to_wake_up+0x11c/0x1490
[  452.003046]  ? lock_downgrade+0x900/0x900
[  452.007218]  ? zap_class+0x640/0x640
[  452.010943]  ? print_usage_bug+0xc0/0xc0
[  452.015007]  ? trace_hardirqs_off+0xb8/0x310
[  452.019420]  ? kasan_check_read+0x11/0x20
[  452.023583]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.029174]  ? check_preemption_disabled+0x48/0x280
[  452.034209]  ? __lock_is_held+0xb5/0x140
[  452.038282]  __alloc_pages_nodemask+0xad8/0xea0
[  452.042964]  ? zap_class+0x640/0x640
[  452.046688]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  452.051720]  ? find_held_lock+0x36/0x1c0
[  452.055796]  ? ____cache_alloc_node+0x1c7/0x1e0
[  452.060471]  ? lock_downgrade+0x900/0x900
[  452.064635]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.070191]  cache_grow_begin+0xa5/0x8c0
[  452.074262]  ? do_raw_spin_unlock+0xa7/0x330
[  452.078688]  fallback_alloc+0x204/0x2e0
[  452.082678]  ____cache_alloc_node+0x1c7/0x1e0
[  452.087188]  kmem_cache_alloc_node+0xe3/0x730
[  452.091692]  ? ipv6_get_ifaddr+0x42e/0x620
[  452.095948]  __alloc_skb+0x119/0x770
[  452.099667]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  452.104962]  ? netdev_alloc_frag+0x1f0/0x1f0
[  452.109382]  ? lock_downgrade+0x900/0x900
[  452.113546]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.119101]  ? refcount_sub_and_test_checked+0x203/0x310
[  452.124572]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  452.130039]  ? addrconf_rs_timer+0x690/0x690
[  452.134477]  ndisc_alloc_skb+0x144/0x340
[  452.138558]  ndisc_send_rs+0x331/0x6e0
[  452.142457]  addrconf_rs_timer+0x314/0x690
[  452.146708]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  452.150963]  call_timer_fn+0x272/0x920
[  452.154873]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  452.159116]  ? process_timeout+0x40/0x40
[  452.163190]  ? __run_timers+0x7da/0xc70
[  452.167177]  ? _raw_spin_unlock_irq+0x27/0x80
[  452.171679]  ? _raw_spin_unlock_irq+0x27/0x80
[  452.176200]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  452.180446]  ? lockdep_hardirqs_on+0x296/0x5b0
[  452.185039]  ? trace_hardirqs_on+0xbd/0x310
[  452.189409]  ? kasan_check_read+0x11/0x20
[  452.193578]  ? __run_timers+0x7da/0xc70
[  452.197559]  ? trace_hardirqs_off_caller+0x310/0x310
[  452.202681]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  452.206918]  __run_timers+0x7e5/0xc70
[  452.210737]  ? timer_fixup_init+0x70/0x70
[  452.214924]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  452.219961]  ? zap_class+0x640/0x640
[  452.223684]  ? enqueue_hrtimer+0x1a5/0x560
[  452.227958]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  452.233173]  ? find_held_lock+0x36/0x1c0
[  452.237246]  ? zap_class+0x640/0x640
[  452.240974]  ? pvclock_read_flags+0x160/0x160
[  452.245479]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.251024]  ? check_preemption_disabled+0x48/0x280
[  452.256058]  ? __lock_is_held+0xb5/0x140
[  452.260138]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.265683]  ? check_preemption_disabled+0x48/0x280
[  452.270715]  run_timer_softirq+0x52/0xb0
[  452.274783]  ? rcu_read_lock_sched_held+0x14f/0x180
[  452.279811]  __do_softirq+0x308/0xb7e
[  452.284090]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  452.288607]  ? lock_downgrade+0x900/0x900
[  452.292765]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  452.297886]  ? pvclock_read_flags+0x160/0x160
[  452.302389]  ? lapic_next_event+0x5a/0x90
[  452.306550]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.312588]  ? kvm_clock_read+0x18/0x30
[  452.316573]  ? kvm_sched_clock_read+0x9/0x20
[  452.321023]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.326573]  ? check_preemption_disabled+0x48/0x280
[  452.331609]  irq_exit+0x17f/0x1c0
[  452.335096]  smp_apic_timer_interrupt+0x1cb/0x760
[  452.339962]  ? smp_reschedule_interrupt+0x109/0x650
[  452.345004]  ? smp_call_function_single_interrupt+0x650/0x650
[  452.350931]  ? interrupt_entry+0xb5/0xc0
[  452.355022]  ? trace_hardirqs_off_caller+0xbb/0x310
[  452.360094]  ? trace_hardirqs_off_caller+0xbb/0x310
[  452.365128]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  452.369982]  ? trace_hardirqs_on_caller+0x310/0x310
[  452.375769]  ? trace_hardirqs_on_caller+0x310/0x310
[  452.380797]  ? task_prio+0x50/0x50
[  452.384383]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.389938]  ? check_preemption_disabled+0x48/0x280
[  452.394985]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  452.399907]  apic_timer_interrupt+0xf/0x20
[  452.404141]  </IRQ>
[  452.406387] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  452.411324] 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 42 f3
[  452.430237] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  452.437964] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  452.445249] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  452.452532] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  452.459815] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  452.467103] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  452.474428]  skb_clone+0x1bb/0x500
[  452.478009]  ? skb_split+0x11e0/0x11e0
[  452.481901]  ? check_preemption_disabled+0x48/0x280
[  452.486943]  ? __this_cpu_preempt_check+0x1c/0x20
[  452.491798]  ? __bpf_redirect+0x55b/0xb60
[  452.495972]  ? __switch_to_asm+0x34/0x70
[  452.500051]  ? __switch_to_asm+0x40/0x70
[  452.504135]  bpf_clone_redirect+0xb9/0x490
[  452.508380]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  452.513405]  ? __sched_text_start+0x8/0x8
[  452.517572]  ? find_held_lock+0x36/0x1c0
[  452.521648]  ? lock_acquire+0x1ed/0x520
[  452.525642]  ? bpf_test_run+0x3cb/0x780
[  452.529625]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.535168]  ? check_preemption_disabled+0x48/0x280
[  452.540203]  ? kasan_check_read+0x11/0x20
[  452.544359]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  452.549645]  ? rcu_softirq_qs+0x20/0x20
[  452.553631]  ? preempt_schedule+0x4d/0x60
[  452.557783]  ? ___preempt_schedule+0x16/0x18
[  452.562241]  ? bpf_test_run+0x25d/0x780
[  452.566247]  ? netlink_diag_dump+0x2a0/0x2a0
[  452.570681]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  452.576227]  ? bpf_test_init.isra.10+0x70/0x100
[  452.580925]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  452.585699]  ? bpf_test_finish.isra.9+0x260/0x260
[  452.590555]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  452.596109]  ? fput+0x130/0x1a0
[  452.599415]  ? __bpf_prog_get+0x9b/0x290
[  452.603486]  ? bpf_test_finish.isra.9+0x260/0x260
[  452.608337]  ? bpf_prog_test_run+0x130/0x1a0
[  452.612754]  ? __x64_sys_bpf+0x3db/0x520
[  452.616820]  ? bpf_prog_get+0x20/0x20
[  452.620653]  ? do_syscall_64+0x1b9/0x820
[  452.624719]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  452.630116]  ? syscall_return_slowpath+0x5e0/0x5e0
[  452.635049]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  452.639909]  ? trace_hardirqs_on_caller+0x310/0x310
[  452.644944]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  452.649973]  ? prepare_exit_to_usermode+0x291/0x3b0
[  452.655006]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  452.659866]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  452.665256] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  452.665325] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  452.672272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  452.672277] Call Trace:
[  452.672283]  <IRQ>
[  452.672318]  dump_stack+0x244/0x39d
[  452.672349]  ? dump_stack_print_info.cold.1+0x20/0x20
[  452.672375]  warn_alloc.cold.116+0xb7/0x1bd
[  452.678975] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  452.688232]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  452.690809] syz-executor0 cpuset=syz0 mems_allowed=0
[  452.692959]  ? lock_downgrade+0x900/0x900
[  452.730603]  ? trace_hardirqs_off+0xb8/0x310
[  452.735024]  ? trace_hardirqs_off+0xb8/0x310
[  452.739448]  __alloc_pages_slowpath+0x2651/0x2de0
[  452.744341]  ? warn_alloc+0x120/0x120
[  452.748147]  ? print_usage_bug+0xc0/0xc0
[  452.752211]  ? warn_alloc+0x120/0x120
[  452.756028]  ? warn_alloc+0x120/0x120
[  452.759833]  ? print_usage_bug+0xc0/0xc0
[  452.763901]  ? print_usage_bug+0xc0/0xc0
[  452.767967]  ? __lock_acquire+0x62f/0x4c20
[  452.772242]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  452.777784]  ? should_fail+0x22d/0xd01
[  452.781679]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  452.786837]  ? __lock_acquire+0x62f/0x4c20
[  452.791114]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  452.796221]  ? __lock_acquire+0x62f/0x4c20
[  452.800462]  ? should_fail+0x22d/0xd01
[  452.804384]  ? find_held_lock+0x36/0x1c0
[  452.808461]  ? mark_held_locks+0x130/0x130
[  452.812719]  ? mark_held_locks+0x130/0x130
[  452.816978]  ? zap_class+0x640/0x640
[  452.820693]  ? zap_class+0x640/0x640
[  452.824428]  ? print_usage_bug+0xc0/0xc0
[  452.828494]  ? do_raw_spin_unlock+0xa7/0x330
[  452.832906]  ? zap_class+0x640/0x640
[  452.836636]  ? print_usage_bug+0xc0/0xc0
[  452.840698]  ? wq_watchdog_touch+0x9c/0xfe
[  452.844941]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.850499]  ? check_preemption_disabled+0x48/0x280
[  452.855531]  ? __lock_is_held+0xb5/0x140
[  452.859604]  __alloc_pages_nodemask+0xad8/0xea0
[  452.864275]  ? zap_class+0x640/0x640
[  452.867995]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  452.873025]  ? find_held_lock+0x36/0x1c0
[  452.877120]  ? ____cache_alloc_node+0x1c7/0x1e0
[  452.881821]  ? lock_downgrade+0x900/0x900
[  452.885982]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.891547]  cache_grow_begin+0xa5/0x8c0
[  452.895611]  ? do_raw_spin_unlock+0xa7/0x330
[  452.900032]  fallback_alloc+0x204/0x2e0
[  452.904015]  ____cache_alloc_node+0x1c7/0x1e0
[  452.908520]  kmem_cache_alloc_node+0xe3/0x730
[  452.913025]  ? ipv6_get_ifaddr+0x42e/0x620
[  452.917275]  __alloc_skb+0x119/0x770
[  452.920991]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  452.926279]  ? netdev_alloc_frag+0x1f0/0x1f0
[  452.930700]  ? lock_downgrade+0x900/0x900
[  452.934888]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.940441]  ? refcount_sub_and_test_checked+0x203/0x310
[  452.945905]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  452.951359]  ? addrconf_rs_timer+0x690/0x690
[  452.955784]  ndisc_alloc_skb+0x144/0x340
[  452.959887]  ndisc_send_rs+0x331/0x6e0
[  452.963784]  addrconf_rs_timer+0x314/0x690
[  452.968030]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  452.972279]  call_timer_fn+0x272/0x920
[  452.976169]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  452.980405]  ? process_timeout+0x40/0x40
[  452.984485]  ? mark_held_locks+0xc7/0x130
[  452.988641]  ? _raw_spin_unlock_irq+0x27/0x80
[  452.993139]  ? _raw_spin_unlock_irq+0x27/0x80
[  452.997638]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  453.001884]  ? lockdep_hardirqs_on+0x296/0x5b0
[  453.006472]  ? trace_hardirqs_on+0xbd/0x310
[  453.010798]  ? kasan_check_read+0x11/0x20
[  453.014963]  ? __run_timers+0x7da/0xc70
[  453.018941]  ? trace_hardirqs_off_caller+0x310/0x310
[  453.024093]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  453.028342]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  453.032576]  __run_timers+0x7e5/0xc70
[  453.036389]  ? timer_fixup_init+0x70/0x70
[  453.040545]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  453.045563]  ? zap_class+0x640/0x640
[  453.049284]  ? print_usage_bug+0xc0/0xc0
[  453.053350]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  453.058550]  ? find_held_lock+0x36/0x1c0
[  453.062617]  ? zap_class+0x640/0x640
[  453.066344]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.071891]  ? check_preemption_disabled+0x48/0x280
[  453.076935]  ? __lock_is_held+0xb5/0x140
[  453.081002]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.086559]  ? check_preemption_disabled+0x48/0x280
[  453.091596]  run_timer_softirq+0x52/0xb0
[  453.095664]  ? rcu_read_lock_sched_held+0x14f/0x180
[  453.100683]  __do_softirq+0x308/0xb7e
[  453.104493]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  453.108992]  ? lock_downgrade+0x900/0x900
[  453.113155]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  453.118290]  ? pvclock_read_flags+0x160/0x160
[  453.122809]  ? lapic_next_event+0x5a/0x90
[  453.126967]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.132530]  ? kvm_clock_read+0x18/0x30
[  453.136511]  ? kvm_sched_clock_read+0x9/0x20
[  453.140929]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  453.146476]  ? check_preemption_disabled+0x48/0x280
[  453.151511]  irq_exit+0x17f/0x1c0
[  453.154972]  smp_apic_timer_interrupt+0x1cb/0x760
[  453.159818]  ? smp_reschedule_interrupt+0x109/0x650
[  453.164877]  ? smp_call_function_single_interrupt+0x650/0x650
[  453.170794]  ? interrupt_entry+0xb5/0xc0
[  453.174903]  ? trace_hardirqs_off_caller+0xbb/0x310
[  453.180372]  ? trace_hardirqs_off_caller+0xbb/0x310
[  453.185406]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  453.190270]  ? trace_hardirqs_on_caller+0x310/0x310
[  453.195290]  ? trace_hardirqs_on_caller+0x310/0x310
[  453.200327]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  453.205183]  apic_timer_interrupt+0xf/0x20
[  453.209414]  </IRQ>
[  453.211659] RIP: 0010:dump_stack+0x358/0x39d
[  453.216080] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  453.234993] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  453.242724] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  453.249995] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  453.257277] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  453.264551] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  453.271829] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  453.279136]  ? dump_stack+0x34f/0x39d
[  453.282954]  ? dump_stack_print_info.cold.1+0x20/0x20
[  453.288152]  ? mark_held_locks+0x130/0x130
[  453.292392]  ? mark_held_locks+0x130/0x130
[  453.296638]  dump_header+0x27b/0xf72
[  453.300366]  ? pagefault_out_of_memory+0x197/0x197
[  453.305309]  ? __lock_acquire+0x62f/0x4c20
[  453.309547]  ? percpu_ref_get_many+0x240/0x240
[  453.314135]  ? print_usage_bug+0xc0/0xc0
[  453.318205]  ? zap_class+0x640/0x640
[  453.321927]  ? print_usage_bug+0xc0/0xc0
[  453.325985]  ? print_usage_bug+0xc0/0xc0
[  453.330044]  ? zap_class+0x640/0x640
[  453.333786]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.339328]  ? find_held_lock+0x36/0x1c0
[  453.343401]  ? mark_held_locks+0xc7/0x130
[  453.347558]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  453.352667]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  453.357773]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  453.362365]  ? trace_hardirqs_on+0xbd/0x310
[  453.366689]  ? kasan_check_read+0x11/0x20
[  453.370843]  ? ___ratelimit+0x3b4/0x672
[  453.374823]  ? trace_hardirqs_off_caller+0x310/0x310
[  453.379935]  ? trace_hardirqs_on+0x310/0x310
[  453.384357]  ? lock_downgrade+0x900/0x900
[  453.388529]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  453.393638]  ? ___ratelimit+0x3b9/0x672
[  453.397620]  ? idr_get_free+0xf70/0xf70
[  453.401597]  ? find_held_lock+0x36/0x1c0
[  453.405671]  oom_kill_process.cold.27+0x10/0x903
[  453.410442]  ? zap_class+0x640/0x640
[  453.414159]  ? check_preemption_disabled+0x48/0x280
[  453.419183]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  453.424114]  ? kasan_check_read+0x11/0x20
[  453.428264]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  453.433548]  ? oom_evaluate_task+0x540/0x540
[  453.437965]  ? find_held_lock+0x36/0x1c0
[  453.442039]  ? out_of_memory+0x974/0x1430
[  453.446202]  ? lock_downgrade+0x900/0x900
[  453.450354]  ? check_preemption_disabled+0x48/0x280
[  453.455381]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  453.460323]  ? kasan_check_read+0x11/0x20
[  453.464475]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  453.469759]  ? rcu_softirq_qs+0x20/0x20
[  453.473741]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  453.479286]  ? oom_evaluate_task+0x302/0x540
[  453.483701]  out_of_memory+0xa84/0x1430
[  453.487687]  ? oom_killer_disable+0x3a0/0x3a0
[  453.492207]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  453.497143]  ? __ww_mutex_check_waiters+0x160/0x160
[  453.502176]  __alloc_pages_slowpath+0x232c/0x2de0
[  453.507063]  ? warn_alloc+0x120/0x120
[  453.510873]  ? mark_held_locks+0x130/0x130
[  453.515121]  ? find_get_entry+0xaae/0x1120
[  453.519369]  ? filemap_map_pages+0x1a20/0x1a20
[  453.523962]  ? zap_class+0x640/0x640
[  453.527698]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.533246]  ? check_preemption_disabled+0x48/0x280
[  453.538266]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  453.543811]  ? should_fail+0x22d/0xd01
[  453.547705]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  453.552813]  ? zap_class+0x640/0x640
[  453.556563]  ? __lock_is_held+0xb5/0x140
[  453.560637]  ? mark_held_locks+0x130/0x130
[  453.564879]  ? lock_release+0xa00/0xa00
[  453.568887]  ? perf_trace_sched_process_exec+0x860/0x860
[  453.574355]  ? xa_load+0x2ba/0x460
[  453.577919]  ? lock_downgrade+0x900/0x900
[  453.582083]  ? __might_sleep+0x95/0x190
[  453.586109]  __alloc_pages_nodemask+0xad8/0xea0
[  453.590793]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  453.595812]  ? __page_cache_alloc+0x191/0x5c0
[  453.600306]  ? xa_load+0x2e1/0x460
[  453.603848]  ? xa_clear_mark+0x40/0x40
[  453.607740]  ? zap_class+0x640/0x640
[  453.611471]  ? zap_class+0x640/0x640
[  453.615185]  ? zap_class+0x640/0x640
[  453.618903]  ? __do_page_cache_readahead+0x663/0x810
[  453.624016]  ? find_held_lock+0x36/0x1c0
[  453.628095]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  453.633646]  alloc_pages_current+0x173/0x350
[  453.638066]  __page_cache_alloc+0x38c/0x5c0
[  453.642401]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  453.647336]  ? kasan_check_read+0x11/0x20
[  453.651485]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  453.656768]  ? generic_perform_write+0x6a0/0x6a0
[  453.661535]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  453.667083]  ? check_preemption_disabled+0x48/0x280
[  453.672129]  filemap_fault+0x1595/0x25f0
[  453.676206]  ? __lock_page_or_retry+0xa00/0xa00
[  453.680890]  ? mark_held_locks+0x130/0x130
[  453.685156]  ? filemap_map_pages+0xd6b/0x1a20
[  453.689655]  ? lock_downgrade+0x900/0x900
[  453.693840]  ? check_preemption_disabled+0x48/0x280
[  453.698862]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  453.703843]  ? kasan_check_read+0x11/0x20
[  453.708009]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  453.713286]  ? rcu_softirq_qs+0x20/0x20
[  453.717294]  ? filemap_map_pages+0xd92/0x1a20
[  453.721802]  ? find_get_entries_tag+0x1400/0x1400
[  453.726653]  ? debug_object_destroy+0x2b0/0x2b0
[  453.731327]  ? lock_pi_update_atomic+0x150/0x150
[  453.736110]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.741660]  ? lock_acquire+0x1ed/0x520
[  453.745653]  ? ext4_filemap_fault+0x7a/0xad
[  453.749982]  ? lock_release+0xa00/0xa00
[  453.753962]  ? perf_trace_sched_process_exec+0x860/0x860
[  453.759434]  ? print_usage_bug+0xc0/0xc0
[  453.763518]  ? print_usage_bug+0xc0/0xc0
[  453.767587]  ? down_read+0x8d/0x120
[  453.771215]  ? ext4_filemap_fault+0x7a/0xad
[  453.775538]  ? __down_interruptible+0x700/0x700
[  453.780221]  ext4_filemap_fault+0x82/0xad
[  453.784393]  __do_fault+0x100/0x6b0
[  453.788033]  ? find_held_lock+0x36/0x1c0
[  453.792105]  ? pmd_devmap_trans_unstable+0x220/0x220
[  453.797216]  ? mark_held_locks+0x130/0x130
[  453.801461]  ? mark_held_locks+0x130/0x130
[  453.805702]  ? debug_smp_processor_id+0x1c/0x20
[  453.810374]  ? perf_trace_lock+0x14d/0x7a0
[  453.814621]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  453.820171]  __handle_mm_fault+0x3ea0/0x5be0
[  453.824604]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  453.829460]  ? lock_is_held_type+0x210/0x210
[  453.833893]  ? __switch_to_asm+0x34/0x70
[  453.837953]  ? __switch_to_asm+0x34/0x70
[  453.842046]  ? zap_class+0x640/0x640
[  453.845789]  ? zap_class+0x640/0x640
[  453.849505]  ? __x64_sys_futex+0x53e/0x6a0
[  453.853771]  ? find_held_lock+0x36/0x1c0
[  453.857865]  ? handle_mm_fault+0x42a/0xc70
[  453.862118]  ? lock_downgrade+0x900/0x900
[  453.866272]  ? check_preemption_disabled+0x48/0x280
[  453.871300]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  453.876231]  ? kasan_check_read+0x11/0x20
[  453.880382]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  453.885663]  ? rcu_softirq_qs+0x20/0x20
[  453.889642]  ? trace_hardirqs_off_caller+0x310/0x310
[  453.894758]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  453.900302]  ? check_preemption_disabled+0x48/0x280
[  453.905333]  handle_mm_fault+0x54f/0xc70
[  453.909402]  ? __handle_mm_fault+0x5be0/0x5be0
[  453.913997]  ? find_vma+0x34/0x190
[  453.917547]  __do_page_fault+0x5e8/0xe60
[  453.921612]  ? trace_hardirqs_off+0xb8/0x310
[  453.926034]  do_page_fault+0xf2/0x7e0
[  453.929855]  ? vmalloc_sync_all+0x30/0x30
[  453.934037]  ? error_entry+0x70/0xd0
[  453.937757]  ? trace_hardirqs_off_caller+0xbb/0x310
[  453.942778]  ? trace_hardirqs_on_caller+0xc0/0x310
[  453.947712]  ? syscall_return_slowpath+0x5e0/0x5e0
[  453.952642]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  453.957496]  ? trace_hardirqs_on_caller+0x310/0x310
[  453.962517]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  453.967981]  ? prepare_exit_to_usermode+0x291/0x3b0
[  453.973004]  ? page_fault+0x8/0x30
[  453.976575]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  453.981422]  ? page_fault+0x8/0x30
[  453.984970]  page_fault+0x1e/0x30
[  453.988421] RIP: 0033:0x45ddf3
[  453.991628] Code: Bad RIP value.
[  453.994987] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  454.000352] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  454.007636] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  454.014905] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  454.022178] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  454.029465] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  454.036759] warn_alloc_show_mem: 1 callbacks suppressed
[  454.036772] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  454.036774] Mem-Info:
[  454.036805] active_anon:45985 inactive_anon:296 isolated_anon:0
[  454.036805]  active_file:15 inactive_file:8 isolated_file:0
[  454.036805]  unevictable:0 dirty:0 writeback:0 unstable:0
[  454.036805]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  454.036805]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  454.036805]  free:13771 free_pcp:249 free_cma:0
[  454.042148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  454.049514] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  454.051929] Call Trace:
[  454.084733] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  454.094098]  <IRQ>
[  454.121770] lowmem_reserve[]: 0 2818 6321 6321
[  454.124363]  dump_stack+0x244/0x39d
[  454.150457] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  454.152617]  ? dump_stack_print_info.cold.1+0x20/0x20
[  454.157160] lowmem_reserve[]: 0 0 3503 3503
[  454.160809]  warn_alloc.cold.116+0xb7/0x1bd
[  454.188371] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  454.193569]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  454.197869] lowmem_reserve[]: 0 0 0 0
[  454.202205]  ? lock_downgrade+0x900/0x900
[  454.231165] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  454.236029]  ? trace_hardirqs_off+0xb8/0x310
[  454.239814] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  454.243982]  ? trace_hardirqs_off+0xb8/0x310
[  454.257484] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  454.261934]  __alloc_pages_slowpath+0x2651/0x2de0
[  454.277018] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  454.281447]  ? warn_alloc+0x120/0x120
[  454.296856] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  454.301701]  ? print_usage_bug+0xc0/0xc0
[  454.310638] 376 total pagecache pages
[  454.310650] 0 pages in swap cache
[  454.310655] Swap cache stats: add 0, delete 0, find 0/0
[  454.310658] Free swap  = 0kB
[  454.310661] Total swap = 0kB
[  454.310666] 1965979 pages RAM
[  454.310669] 0 pages HighMem/MovableOnly
[  454.310671] 342854 pages reserved
[  454.310674] 0 pages cma reserved
[  454.310723] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  454.310770] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  454.310775] syz-fuzzer cpuset=/ mems_allowed=0
[  454.381804]  ? warn_alloc+0x120/0x120
[  454.385621]  ? warn_alloc+0x120/0x120
[  454.389432]  ? print_usage_bug+0xc0/0xc0
[  454.393501]  ? kvm_clock_read+0x18/0x30
[  454.397482]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  454.402510]  ? print_usage_bug+0xc0/0xc0
[  454.406579]  ? __lock_acquire+0x62f/0x4c20
[  454.410825]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  454.416370]  ? should_fail+0x22d/0xd01
[  454.420289]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  454.425588]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  454.430702]  ? __lock_acquire+0x62f/0x4c20
[  454.434953]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  454.440061]  ? __lock_acquire+0x62f/0x4c20
[  454.444310]  ? should_fail+0x22d/0xd01
[  454.448204]  ? rcu_irq_exit+0x1a2/0x390
[  454.452195]  ? mark_held_locks+0x130/0x130
[  454.456467]  ? mark_held_locks+0x130/0x130
[  454.460716]  ? mark_held_locks+0xc7/0x130
[  454.464903]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  454.469929]  ? zap_class+0x640/0x640
[  454.473657]  ? print_usage_bug+0xc0/0xc0
[  454.477732]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.483279]  ? check_preemption_disabled+0x48/0x280
[  454.488315]  ? __lock_is_held+0xb5/0x140
[  454.492391]  __alloc_pages_nodemask+0xad8/0xea0
[  454.497068]  ? zap_class+0x640/0x640
[  454.500800]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  454.505848]  ? find_held_lock+0x36/0x1c0
[  454.509974]  ? ____cache_alloc_node+0x1c7/0x1e0
[  454.514663]  ? lock_downgrade+0x900/0x900
[  454.518906]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.524459]  cache_grow_begin+0xa5/0x8c0
[  454.528533]  ? do_raw_spin_unlock+0xa7/0x330
[  454.532960]  fallback_alloc+0x204/0x2e0
[  454.536955]  ____cache_alloc_node+0x1c7/0x1e0
[  454.541465]  kmem_cache_alloc_node+0xe3/0x730
[  454.545970]  ? ipv6_get_ifaddr+0x42e/0x620
[  454.550249]  __alloc_skb+0x119/0x770
[  454.553987]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  454.559288]  ? netdev_alloc_frag+0x1f0/0x1f0
[  454.563730]  ? lock_downgrade+0x900/0x900
[  454.567928]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.573480]  ? refcount_sub_and_test_checked+0x203/0x310
[  454.578949]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  454.584408]  ? addrconf_rs_timer+0x690/0x690
[  454.588837]  ndisc_alloc_skb+0x144/0x340
[  454.592906]  ndisc_send_rs+0x331/0x6e0
[  454.596807]  addrconf_rs_timer+0x314/0x690
[  454.601052]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  454.605310]  call_timer_fn+0x272/0x920
[  454.609207]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  454.613448]  ? process_timeout+0x40/0x40
[  454.617521]  ? __run_timers+0x7da/0xc70
[  454.621501]  ? _raw_spin_unlock_irq+0x27/0x80
[  454.626015]  ? _raw_spin_unlock_irq+0x27/0x80
[  454.630517]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  454.634762]  ? lockdep_hardirqs_on+0x296/0x5b0
[  454.639381]  ? trace_hardirqs_on+0xbd/0x310
[  454.643709]  ? kasan_check_read+0x11/0x20
[  454.647880]  ? __run_timers+0x7da/0xc70
[  454.651876]  ? trace_hardirqs_off_caller+0x310/0x310
[  454.656992]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  454.661240]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  454.665476]  __run_timers+0x7e5/0xc70
[  454.669314]  ? timer_fixup_init+0x70/0x70
[  454.673473]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  454.678494]  ? zap_class+0x640/0x640
[  454.682217]  ? enqueue_hrtimer+0x1a5/0x560
[  454.686460]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  454.691664]  ? find_held_lock+0x36/0x1c0
[  454.695738]  ? zap_class+0x640/0x640
[  454.699462]  ? pvclock_read_flags+0x160/0x160
[  454.703969]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.709527]  ? check_preemption_disabled+0x48/0x280
[  454.714559]  ? __lock_is_held+0xb5/0x140
[  454.718627]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.724172]  ? check_preemption_disabled+0x48/0x280
[  454.729206]  run_timer_softirq+0x52/0xb0
[  454.733274]  ? rcu_read_lock_sched_held+0x14f/0x180
[  454.738302]  __do_softirq+0x308/0xb7e
[  454.742119]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  454.746617]  ? lock_downgrade+0x900/0x900
[  454.750780]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  454.755896]  ? pvclock_read_flags+0x160/0x160
[  454.760398]  ? lapic_next_event+0x5a/0x90
[  454.764560]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.770119]  ? kvm_clock_read+0x18/0x30
[  454.774114]  ? kvm_sched_clock_read+0x9/0x20
[  454.778535]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.784093]  ? check_preemption_disabled+0x48/0x280
[  454.789129]  irq_exit+0x17f/0x1c0
[  454.792592]  smp_apic_timer_interrupt+0x1cb/0x760
[  454.797444]  ? smp_reschedule_interrupt+0x109/0x650
[  454.802475]  ? smp_call_function_single_interrupt+0x650/0x650
[  454.808373]  ? interrupt_entry+0xb5/0xc0
[  454.812444]  ? trace_hardirqs_off_caller+0xbb/0x310
[  454.817487]  ? trace_hardirqs_off_caller+0xbb/0x310
[  454.822519]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  454.827377]  ? trace_hardirqs_on_caller+0x310/0x310
[  454.832404]  ? trace_hardirqs_on_caller+0x310/0x310
[  454.837430]  ? task_prio+0x50/0x50
[  454.840984]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.846530]  ? check_preemption_disabled+0x48/0x280
[  454.851562]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  454.856422]  apic_timer_interrupt+0xf/0x20
[  454.860653]  </IRQ>
[  454.862901] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  454.867896] 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 42 f3
[  454.886835] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  454.894575] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  454.901862] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  454.909145] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  454.916427] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  454.923711] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  454.931037]  skb_clone+0x1bb/0x500
[  454.934602]  ? skb_split+0x11e0/0x11e0
[  454.938500]  ? check_preemption_disabled+0x48/0x280
[  454.943534]  ? __this_cpu_preempt_check+0x1c/0x20
[  454.948384]  ? __bpf_redirect+0x55b/0xb60
[  454.952539]  ? __switch_to_asm+0x34/0x70
[  454.956606]  ? __switch_to_asm+0x40/0x70
[  454.960680]  bpf_clone_redirect+0xb9/0x490
[  454.964933]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  454.969977]  ? __sched_text_start+0x8/0x8
[  454.974153]  ? find_held_lock+0x36/0x1c0
[  454.978233]  ? lock_acquire+0x1ed/0x520
[  454.982221]  ? bpf_test_run+0x3cb/0x780
[  454.986204]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.991752]  ? check_preemption_disabled+0x48/0x280
[  454.996783]  ? kasan_check_read+0x11/0x20
[  455.000941]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  455.006225]  ? rcu_softirq_qs+0x20/0x20
[  455.010213]  ? preempt_schedule+0x4d/0x60
[  455.014366]  ? ___preempt_schedule+0x16/0x18
[  455.018792]  ? bpf_test_run+0x25d/0x780
[  455.022786]  ? netlink_diag_dump+0x2a0/0x2a0
[  455.027207]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  455.032750]  ? bpf_test_init.isra.10+0x70/0x100
[  455.037437]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  455.042210]  ? bpf_test_finish.isra.9+0x260/0x260
[  455.047059]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  455.052610]  ? fput+0x130/0x1a0
[  455.055897]  ? __bpf_prog_get+0x9b/0x290
[  455.059986]  ? bpf_test_finish.isra.9+0x260/0x260
[  455.064853]  ? bpf_prog_test_run+0x130/0x1a0
[  455.069273]  ? __x64_sys_bpf+0x3db/0x520
[  455.073366]  ? bpf_prog_get+0x20/0x20
[  455.077212]  ? do_syscall_64+0x1b9/0x820
[  455.081280]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  455.086656]  ? syscall_return_slowpath+0x5e0/0x5e0
[  455.091595]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  455.096448]  ? trace_hardirqs_on_caller+0x310/0x310
[  455.101475]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  455.106506]  ? prepare_exit_to_usermode+0x291/0x3b0
[  455.111537]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  455.116395]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  455.121802] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  455.121846] rcu: INFO: rcu_preempt self-detected stall on CPU
[  455.128842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  455.128851] Call Trace:
[  455.135007] rcu: 	1-...!: (143 ticks this GP) idle=de6/1/0x4000000000000004 softirq=26152/26154 fqs=2 
[  455.144085]  <IRQ>
[  455.144110]  dump_stack+0x244/0x39d
[  455.144126]  ? dump_stack_print_info.cold.1+0x20/0x20
[  455.144148]  warn_alloc.cold.116+0xb7/0x1bd
[  455.144161]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  455.144176]  ? lock_downgrade+0x900/0x900
[  455.144194]  ? trace_hardirqs_off+0xb8/0x310
[  455.144210]  ? trace_hardirqs_off+0xb8/0x310
[  455.144231]  __alloc_pages_slowpath+0x2651/0x2de0
[  455.144271]  ? warn_alloc+0x120/0x120
[  455.144287]  ? print_usage_bug+0xc0/0xc0
[  455.144302]  ? warn_alloc+0x120/0x120
[  455.144320]  ? warn_alloc+0x120/0x120
[  455.144335]  ? print_usage_bug+0xc0/0xc0
[  455.147159] rcu: 	 (t=10733 jiffies g=35097 q=21)
[  455.156611]  ? enqueue_hrtimer+0x1a5/0x560
[  455.158766] rcu: rcu_preempt kthread starved for 10670 jiffies! g35097 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
[  455.162408]  ? print_usage_bug+0xc0/0xc0
[  455.167574] rcu: RCU grace-period kthread stack dump:
[  455.171888]  ? __lock_acquire+0x62f/0x4c20
[  455.176704] rcu_preempt     R  running task    22392    10      2 0x80000000
[  455.181337]  ? __lock_acquire+0x62f/0x4c20
[  455.185725] Call Trace:
[  455.190145]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  455.194973]  __schedule+0x8cf/0x21d0
[  455.198758]  ? should_fail+0x22d/0xd01
[  455.202811]  ? __sched_text_start+0x8/0x8
[  455.206593]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  455.210385]  ? add_timer_on+0xa20/0xa20
[  455.214425]  ? __lock_acquire+0x62f/0x4c20
[  455.219255]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  455.223479]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  455.233955]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  455.238003]  ? __lock_acquire+0x62f/0x4c20
[  455.243179]  ? trace_hardirqs_on+0xbd/0x310
[  455.247399]  ? should_fail+0x22d/0xd01
[  455.254578]  ? kasan_check_read+0x11/0x20
[  455.258802]  ? mark_held_locks+0x130/0x130
[  455.261369]  ? prepare_to_swait_event+0x25a/0x800
[  455.266893]  ? mark_held_locks+0x130/0x130
[  455.270594]  ? trace_hardirqs_off_caller+0x310/0x310
[  455.274471]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  455.278604]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  455.283717]  ? ktime_get+0x2c1/0x400
[  455.287683]  schedule+0xfe/0x460
[  455.291911]  ? zap_class+0x640/0x640
[  455.297002]  ? __schedule+0x21d0/0x21d0
[  455.302099]  ? print_usage_bug+0xc0/0xc0
[  455.307190]  ? prepare_to_swait_event+0x25a/0x800
[  455.311414]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.315726]  ? __init_swait_queue_head+0x150/0x150
[  455.319596]  ? check_preemption_disabled+0x48/0x280
[  455.323732]  ? __lockdep_init_map+0x105/0x590
[  455.327957]  ? __lock_is_held+0xb5/0x140
[  455.332783]  ? lockdep_init_map+0x9/0x10
[  455.337008]  __alloc_pages_nodemask+0xad8/0xea0
[  455.342102]  schedule_timeout+0x140/0x260
[  455.347129]  ? zap_class+0x640/0x640
[  455.352221]  ? usleep_range+0x1a0/0x1a0
[  455.355941]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  455.359297]  ? __next_timer_interrupt+0x1a0/0x1a0
[  455.363003]  ? find_held_lock+0x36/0x1c0
[  455.366993]  rcu_gp_fqs_loop+0x762/0xa80
[  455.371035]  ? ____cache_alloc_node+0x1c7/0x1e0
[  455.375868]  ? rcu_gp_fqs_check_wake+0x170/0x170
[  455.381391]  ? lock_downgrade+0x900/0x900
[  455.386313]  ? trace_hardirqs_off_caller+0x310/0x310
[  455.391322]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.395837]  ? perf_trace_sched_process_exec+0x860/0x860
[  455.399890]  cache_grow_begin+0xa5/0x8c0
[  455.403985]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.409678]  ? do_raw_spin_unlock+0xa7/0x330
[  455.413817]  ? rcu_gp_init+0x90b/0x1260
[  455.417519]  fallback_alloc+0x204/0x2e0
[  455.421474]  ? __switch_to_asm+0x40/0x70
[  455.426485]  ____cache_alloc_node+0x1c7/0x1e0
[  455.431314]  ? dump_blkd_tasks.isra.48+0xe0/0xe0
[  455.435365]  kmem_cache_alloc_node+0xe3/0x730
[  455.439410]  ? __switch_to_asm+0x40/0x70
[  455.444070]  ? ipv6_get_ifaddr+0x42e/0x620
[  455.448819]  ? find_held_lock+0x36/0x1c0
[  455.452992]  __alloc_skb+0x119/0x770
[  455.458085]  ? zap_class+0x640/0x640
[  455.463605]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  455.469051]  ? prepare_to_swait_event+0x25a/0x800
[  455.473103]  ? netdev_alloc_frag+0x1f0/0x1f0
[  455.478631]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  455.483067]  ? lock_downgrade+0x900/0x900
[  455.487049]  ? find_held_lock+0x36/0x1c0
[  455.491028]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.495108]  ? finish_swait+0x25d/0x430
[  455.499583]  ? refcount_sub_and_test_checked+0x203/0x310
[  455.504324]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  455.508803]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  455.512852]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  455.517072]  ? addrconf_rs_timer+0x690/0x690
[  455.521146]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  455.524856]  ndisc_alloc_skb+0x144/0x340
[  455.528549]  ? trace_hardirqs_on+0xbd/0x310
[  455.533811]  ndisc_send_rs+0x331/0x6e0
[  455.538639]  ? kasan_check_read+0x11/0x20
[  455.543040]  addrconf_rs_timer+0x314/0x690
[  455.548130]  ? trace_hardirqs_off_caller+0x310/0x310
[  455.552262]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  455.556311]  ? __init_swait_queue_head+0x150/0x150
[  455.561840]  call_timer_fn+0x272/0x920
[  455.565800]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  455.571233]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  455.576325]  ? finish_swait+0x25d/0x430
[  455.581778]  ? process_timeout+0x40/0x40
[  455.586894]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  455.591291]  ? mark_held_locks+0xc7/0x130
[  455.595855]  ? swake_up_locked+0x360/0x360
[  455.599914]  ? _raw_spin_unlock_irq+0x27/0x80
[  455.604221]  ? trace_hardirqs_off_caller+0x310/0x310
[  455.608098]  ? _raw_spin_unlock_irq+0x27/0x80
[  455.612237]  ? perf_trace_sched_process_exec+0x860/0x860
[  455.616465]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  455.621558]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.625782]  ? lockdep_hardirqs_on+0x296/0x5b0
[  455.630701]  rcu_gp_kthread+0x341/0xc70
[  455.634571]  ? trace_hardirqs_on+0xbd/0x310
[  455.639665]  ? rcu_gp_init+0x1260/0x1260
[  455.643881]  ? kasan_check_read+0x11/0x20
[  455.647842]  ? mark_held_locks+0x130/0x130
[  455.651892]  ? __run_timers+0x7da/0xc70
[  455.656465]  ? __schedule+0x168a/0x21d0
[  455.660604]  ? trace_hardirqs_off_caller+0x310/0x310
[  455.664836]  ? _raw_spin_unlock_irq+0x27/0x80
[  455.669319]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  455.674425]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  455.678907]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  455.684340]  ? trace_hardirqs_on+0xbd/0x310
[  455.688555]  __run_timers+0x7e5/0xc70
[  455.694089]  ? kasan_check_read+0x11/0x20
[  455.698660]  ? timer_fixup_init+0x70/0x70
[  455.702617]  ? __schedule+0x168a/0x21d0
[  455.706940]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  455.710985]  ? trace_hardirqs_off_caller+0x310/0x310
[  455.715117]  ? zap_class+0x640/0x640
[  455.719332]  ? lock_pin_lock+0x350/0x350
[  455.723290]  ? print_usage_bug+0xc0/0xc0
[  455.727249]  ? _raw_spin_unlock_irq+0x60/0x80
[  455.732331]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  455.736809]  ? __schedule+0x168a/0x21d0
[  455.741059]  ? find_held_lock+0x36/0x1c0
[  455.745642]  ? __switch_to_asm+0x40/0x70
[  455.749866]  ? zap_class+0x640/0x640
[  455.754187]  ? __switch_to_asm+0x40/0x70
[  455.757975]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.762111]  ? show_schedstat+0x561/0xf30
[  455.766257]  ? check_preemption_disabled+0x48/0x280
[  455.770233]  ? __sched_text_start+0x8/0x8
[  455.775247]  ? __lock_is_held+0xb5/0x140
[  455.780336]  ? find_held_lock+0x36/0x1c0
[  455.784038]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.788095]  ? __kthread_parkme+0xce/0x1a0
[  455.792136]  ? check_preemption_disabled+0x48/0x280
[  455.796631]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  455.801806]  run_timer_softirq+0x52/0xb0
[  455.805765]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  455.809812]  ? rcu_read_lock_sched_held+0x14f/0x180
[  455.813858]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  455.817570]  __do_softirq+0x308/0xb7e
[  455.821633]  ? trace_hardirqs_on+0xbd/0x310
[  455.827171]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  455.831321]  ? kasan_check_read+0x11/0x20
[  455.836321]  ? lock_downgrade+0x900/0x900
[  455.840451]  ? __kthread_parkme+0xce/0x1a0
[  455.840483]  ? trace_hardirqs_off_caller+0x310/0x310
[  455.844540]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  455.848591]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  455.854113]  ? pvclock_read_flags+0x160/0x160
[  455.858331]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  455.863334]  ? lapic_next_event+0x5a/0x90
[  455.868432]  ? __kthread_parkme+0xfb/0x1a0
[  455.872483]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.877585]  ? rcu_gp_init+0x1260/0x1260
[  455.882598]  ? kvm_clock_read+0x18/0x30
[  455.887164]  kthread+0x35a/0x440
[  455.890970]  ? kvm_sched_clock_read+0x9/0x20
[  455.895276]  ? kthread_stop+0x900/0x900
[  455.899770]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  455.903897]  ret_from_fork+0x3a/0x50
[  455.908031]  ? check_preemption_disabled+0x48/0x280
[  455.912256] NMI backtrace for cpu 1
[  455.917337]  irq_exit+0x17f/0x1c0
[  455.992380]  smp_apic_timer_interrupt+0x1cb/0x760
[  455.997226]  ? smp_reschedule_interrupt+0x109/0x650
[  456.002244]  ? smp_call_function_single_interrupt+0x650/0x650
[  456.008134]  ? interrupt_entry+0xb5/0xc0
[  456.012215]  ? trace_hardirqs_off_caller+0xbb/0x310
[  456.017250]  ? trace_hardirqs_off_caller+0xbb/0x310
[  456.022273]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  456.027149]  ? trace_hardirqs_on_caller+0x310/0x310
[  456.032161]  ? trace_hardirqs_on_caller+0x310/0x310
[  456.037193]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  456.042042]  apic_timer_interrupt+0xf/0x20
[  456.046277]  </IRQ>
[  456.048518] RIP: 0010:dump_stack+0x358/0x39d
[  456.052925] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  456.071825] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  456.079559] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  456.086823] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  456.094098] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  456.101364] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  456.108633] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  456.115937]  ? dump_stack+0x34f/0x39d
[  456.119767]  ? dump_stack_print_info.cold.1+0x20/0x20
[  456.124964]  ? mark_held_locks+0x130/0x130
[  456.129205]  ? mark_held_locks+0x130/0x130
[  456.133450]  dump_header+0x27b/0xf72
[  456.137178]  ? pagefault_out_of_memory+0x197/0x197
[  456.142121]  ? __lock_acquire+0x62f/0x4c20
[  456.146359]  ? percpu_ref_get_many+0x240/0x240
[  456.150942]  ? print_usage_bug+0xc0/0xc0
[  456.155023]  ? zap_class+0x640/0x640
[  456.158742]  ? print_usage_bug+0xc0/0xc0
[  456.162817]  ? print_usage_bug+0xc0/0xc0
[  456.166882]  ? zap_class+0x640/0x640
[  456.170603]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.176145]  ? find_held_lock+0x36/0x1c0
[  456.180357]  ? mark_held_locks+0xc7/0x130
[  456.184512]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  456.189617]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  456.194725]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  456.199311]  ? trace_hardirqs_on+0xbd/0x310
[  456.203631]  ? kasan_check_read+0x11/0x20
[  456.207781]  ? ___ratelimit+0x3b4/0x672
[  456.211760]  ? trace_hardirqs_off_caller+0x310/0x310
[  456.216864]  ? trace_hardirqs_on+0x310/0x310
[  456.221271]  ? lock_downgrade+0x900/0x900
[  456.225427]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  456.230538]  ? ___ratelimit+0x3b9/0x672
[  456.234515]  ? idr_get_free+0xf70/0xf70
[  456.238491]  ? find_held_lock+0x36/0x1c0
[  456.242563]  oom_kill_process.cold.27+0x10/0x903
[  456.247320]  ? zap_class+0x640/0x640
[  456.251034]  ? check_preemption_disabled+0x48/0x280
[  456.256052]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  456.260993]  ? kasan_check_read+0x11/0x20
[  456.265144]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  456.270425]  ? oom_evaluate_task+0x540/0x540
[  456.274840]  ? find_held_lock+0x36/0x1c0
[  456.278913]  ? out_of_memory+0x974/0x1430
[  456.283116]  ? lock_downgrade+0x900/0x900
[  456.287268]  ? check_preemption_disabled+0x48/0x280
[  456.292287]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  456.297220]  ? kasan_check_read+0x11/0x20
[  456.301365]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  456.306642]  ? rcu_softirq_qs+0x20/0x20
[  456.310624]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  456.316152]  ? oom_evaluate_task+0x302/0x540
[  456.320566]  out_of_memory+0xa84/0x1430
[  456.324552]  ? oom_killer_disable+0x3a0/0x3a0
[  456.329048]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  456.334015]  ? __ww_mutex_check_waiters+0x160/0x160
[  456.339046]  __alloc_pages_slowpath+0x232c/0x2de0
[  456.343928]  ? warn_alloc+0x120/0x120
[  456.347730]  ? mark_held_locks+0x130/0x130
[  456.351973]  ? find_get_entry+0xaae/0x1120
[  456.356219]  ? filemap_map_pages+0x1a20/0x1a20
[  456.360812]  ? zap_class+0x640/0x640
[  456.364533]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.370086]  ? check_preemption_disabled+0x48/0x280
[  456.375112]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  456.380651]  ? should_fail+0x22d/0xd01
[  456.384545]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  456.389707]  ? zap_class+0x640/0x640
[  456.393451]  ? __lock_is_held+0xb5/0x140
[  456.397525]  ? mark_held_locks+0x130/0x130
[  456.401764]  ? lock_release+0xa00/0xa00
[  456.405740]  ? perf_trace_sched_process_exec+0x860/0x860
[  456.411192]  ? xa_load+0x2ba/0x460
[  456.414741]  ? lock_downgrade+0x900/0x900
[  456.418897]  ? __might_sleep+0x95/0x190
[  456.422881]  __alloc_pages_nodemask+0xad8/0xea0
[  456.427563]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  456.432580]  ? __page_cache_alloc+0x191/0x5c0
[  456.437091]  ? xa_load+0x2e1/0x460
[  456.440634]  ? xa_clear_mark+0x40/0x40
[  456.444524]  ? zap_class+0x640/0x640
[  456.448249]  ? zap_class+0x640/0x640
[  456.451965]  ? zap_class+0x640/0x640
[  456.455683]  ? __do_page_cache_readahead+0x663/0x810
[  456.460799]  ? find_held_lock+0x36/0x1c0
[  456.464865]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  456.470410]  alloc_pages_current+0x173/0x350
[  456.474830]  __page_cache_alloc+0x38c/0x5c0
[  456.479154]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  456.484094]  ? kasan_check_read+0x11/0x20
[  456.488241]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  456.493524]  ? generic_perform_write+0x6a0/0x6a0
[  456.498286]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  456.503825]  ? check_preemption_disabled+0x48/0x280
[  456.508869]  filemap_fault+0x1595/0x25f0
[  456.512944]  ? __lock_page_or_retry+0xa00/0xa00
[  456.517616]  ? mark_held_locks+0x130/0x130
[  456.521874]  ? filemap_map_pages+0xd6b/0x1a20
[  456.526382]  ? lock_downgrade+0x900/0x900
[  456.530531]  ? check_preemption_disabled+0x48/0x280
[  456.535549]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  456.540478]  ? kasan_check_read+0x11/0x20
[  456.544627]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  456.549904]  ? rcu_softirq_qs+0x20/0x20
[  456.553896]  ? filemap_map_pages+0xd92/0x1a20
[  456.558404]  ? find_get_entries_tag+0x1400/0x1400
[  456.563261]  ? debug_object_destroy+0x2b0/0x2b0
[  456.567947]  ? lock_pi_update_atomic+0x150/0x150
[  456.572706]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.578258]  ? lock_acquire+0x1ed/0x520
[  456.582233]  ? ext4_filemap_fault+0x7a/0xad
[  456.586565]  ? lock_release+0xa00/0xa00
[  456.590537]  ? perf_trace_sched_process_exec+0x860/0x860
[  456.595987]  ? print_usage_bug+0xc0/0xc0
[  456.600048]  ? print_usage_bug+0xc0/0xc0
[  456.604144]  ? down_read+0x8d/0x120
[  456.607785]  ? ext4_filemap_fault+0x7a/0xad
[  456.612116]  ? __down_interruptible+0x700/0x700
[  456.616795]  ext4_filemap_fault+0x82/0xad
[  456.620945]  __do_fault+0x100/0x6b0
[  456.624576]  ? find_held_lock+0x36/0x1c0
[  456.628646]  ? pmd_devmap_trans_unstable+0x220/0x220
[  456.633757]  ? mark_held_locks+0x130/0x130
[  456.637993]  ? mark_held_locks+0x130/0x130
[  456.642231]  ? debug_smp_processor_id+0x1c/0x20
[  456.646900]  ? perf_trace_lock+0x14d/0x7a0
[  456.651147]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  456.656691]  __handle_mm_fault+0x3ea0/0x5be0
[  456.661119]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  456.665978]  ? lock_is_held_type+0x210/0x210
[  456.670408]  ? __switch_to_asm+0x34/0x70
[  456.674483]  ? __switch_to_asm+0x34/0x70
[  456.678562]  ? zap_class+0x640/0x640
[  456.682277]  ? zap_class+0x640/0x640
[  456.685993]  ? __x64_sys_futex+0x53e/0x6a0
[  456.690234]  ? find_held_lock+0x36/0x1c0
[  456.694305]  ? handle_mm_fault+0x42a/0xc70
[  456.698546]  ? lock_downgrade+0x900/0x900
[  456.702700]  ? check_preemption_disabled+0x48/0x280
[  456.707733]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  456.712661]  ? kasan_check_read+0x11/0x20
[  456.716810]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  456.722111]  ? rcu_softirq_qs+0x20/0x20
[  456.726106]  ? trace_hardirqs_off_caller+0x310/0x310
[  456.731224]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  456.736763]  ? check_preemption_disabled+0x48/0x280
[  456.741788]  handle_mm_fault+0x54f/0xc70
[  456.745852]  ? __handle_mm_fault+0x5be0/0x5be0
[  456.750447]  ? find_vma+0x34/0x190
[  456.753995]  __do_page_fault+0x5e8/0xe60
[  456.758054]  ? trace_hardirqs_off+0xb8/0x310
[  456.762486]  do_page_fault+0xf2/0x7e0
[  456.766287]  ? vmalloc_sync_all+0x30/0x30
[  456.770446]  ? error_entry+0x70/0xd0
[  456.774163]  ? trace_hardirqs_off_caller+0xbb/0x310
[  456.779183]  ? trace_hardirqs_on_caller+0xc0/0x310
[  456.784115]  ? syscall_return_slowpath+0x5e0/0x5e0
[  456.789046]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  456.793897]  ? trace_hardirqs_on_caller+0x310/0x310
[  456.798917]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  456.804372]  ? prepare_exit_to_usermode+0x291/0x3b0
[  456.809409]  ? page_fault+0x8/0x30
[  456.812955]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  456.817804]  ? page_fault+0x8/0x30
[  456.821346]  page_fault+0x1e/0x30
[  456.824797] RIP: 0033:0x45ddf3
[  456.828018] Code: Bad RIP value.
[  456.831380] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  456.836742] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  456.844010] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  456.851275] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  456.858541] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  456.865815] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  456.873124] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  456.873129] warn_alloc_show_mem: 1 callbacks suppressed
[  456.873136] Mem-Info:
[  456.880496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  456.885863] active_anon:45985 inactive_anon:296 isolated_anon:0
[  456.885863]  active_file:15 inactive_file:8 isolated_file:0
[  456.885863]  unevictable:0 dirty:0 writeback:0 unstable:0
[  456.885863]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  456.885863]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  456.885863]  free:13771 free_pcp:249 free_cma:0
[  456.888235] Call Trace:
[  456.897627] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  456.930396]  <IRQ>
[  456.932969] 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
[  456.960648]  dump_stack+0x244/0x39d
[  456.962776] lowmem_reserve[]: 0 2818 6321 6321
[  456.988901]  ? dump_stack_print_info.cold.1+0x20/0x20
[  456.992498] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  456.997082]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.002233] lowmem_reserve[]: 0 0 3503 3503
[  457.029763]  ? do_raw_spin_lock+0x14f/0x350
[  457.035290] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  457.039609]  nmi_cpu_backtrace.cold.2+0x5c/0xa1
[  457.043894] lowmem_reserve[]: 0 0 0 0
[  457.072886]  ? lapic_can_unplug_cpu.cold.27+0x3f/0x3f
[  457.077533] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  457.081332]  nmi_trigger_cpumask_backtrace+0x1e8/0x22a
[  457.086493] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  457.100017]  arch_trigger_cpumask_backtrace+0x14/0x20
[  457.105267] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  457.120354]  rcu_dump_cpu_stacks+0x16f/0x1bc
[  457.125525] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  457.140959]  print_cpu_stall.cold.67+0x1f3/0x3c7
[  457.145368] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  457.154210]  ? print_other_cpu_stall+0x160/0x160
[  457.158935] 376 total pagecache pages
[  457.167512]  ? print_usage_bug+0xc0/0xc0
[  457.172248] 0 pages in swap cache
[  457.176038]  ? kasan_check_read+0x11/0x20
[  457.180550] Swap cache stats: add 0, delete 0, find 0/0
[  457.180559] Free swap  = 0kB
[  457.184011]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.188146] Total swap = 0kB
[  457.193506]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.196547] 1965979 pages RAM
[  457.202087]  ? do_trace_rcu_torture_read+0x10/0x10
[  457.205103] 0 pages HighMem/MovableOnly
[  457.210638]  ? rcu_preempt_need_deferred_qs+0x74/0x1f0
[  457.213711] 342854 pages reserved
[  457.213719] 0 pages cma reserved
[  457.218647]  ? __lock_is_held+0xb5/0x140
[  457.222659] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  457.227868]  ? __rcu_read_lock+0x50/0x50
[  457.227884]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.227900]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.231388] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  457.234694]  ? check_preemption_disabled+0x48/0x280
[  457.238728] syz-fuzzer cpuset=/ mems_allowed=0
[  457.245216]  rcu_check_callbacks+0xf3b/0x13f0
[  457.285060]  ? rcutree_dead_cpu+0x10/0x10
[  457.289224]  ? lock_downgrade+0x900/0x900
[  457.293376]  ? lock_release+0x970/0xa00
[  457.297368]  ? zap_class+0x640/0x640
[  457.301108]  ? mark_held_locks+0x130/0x130
[  457.305373]  ? zap_class+0x640/0x640
[  457.309100]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.314706]  ? pvclock_gtod_notify+0x2e3/0x3e0
[  457.319293]  ? kvm_set_tsc_khz+0x540/0x540
[  457.323542]  ? warn_alloc.cold.116+0xd1/0x1bd
[  457.328050]  ? find_held_lock+0x36/0x1c0
[  457.332130]  ? zap_class+0x640/0x640
[  457.335846]  ? timekeeping_advance+0x3cc/0xc00
[  457.340440]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.345980]  ? check_preemption_disabled+0x48/0x280
[  457.351006]  ? trace_hardirqs_off+0xb8/0x310
[  457.355415]  ? __lock_is_held+0xb5/0x140
[  457.359478]  ? trace_hardirqs_on+0x310/0x310
[  457.363892]  ? check_preemption_disabled+0x48/0x280
[  457.368917]  ? raise_softirq+0x199/0x420
[  457.372999]  ? raise_softirq_irqoff+0x2e0/0x2e0
[  457.377686]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.383236]  ? check_preemption_disabled+0x48/0x280
[  457.388261]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  457.393818]  ? hrtimer_run_queues+0x9a/0x400
[  457.398233]  ? run_local_timers+0x19b/0x230
[  457.402557]  ? timer_clear_idle+0x90/0x90
[  457.406711]  ? debug_smp_processor_id+0x1c/0x20
[  457.411389]  ? irqtime_account_process_tick.isra.6+0x114/0x490
[  457.417370]  ? account_process_tick+0x282/0x350
[  457.422062]  update_process_times+0x2d/0x70
[  457.426409]  tick_sched_handle+0x9f/0x180
[  457.430560]  tick_sched_timer+0x45/0x130
[  457.434625]  __hrtimer_run_queues+0x41c/0x10d0
[  457.439216]  ? tick_sched_do_timer+0x1a0/0x1a0
[  457.443809]  ? hrtimer_start_range_ns+0xe00/0xe00
[  457.448668]  ? pvclock_read_flags+0x160/0x160
[  457.453167]  ? trace_hardirqs_on+0x310/0x310
[  457.457587]  ? kvm_clock_read+0x18/0x30
[  457.461572]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  457.466590]  ? ktime_get_update_offsets_now+0x3b3/0x540
[  457.471969]  ? do_timer+0x50/0x50
[  457.475427]  ? rwlock_bug.part.2+0x90/0x90
[  457.479664]  ? trace_hardirqs_on+0x310/0x310
[  457.484082]  ? rcu_softirq_qs+0x20/0x20
[  457.488072]  hrtimer_interrupt+0x313/0x780
[  457.492344]  smp_apic_timer_interrupt+0x1a1/0x760
[  457.497195]  ? smp_call_function_single_interrupt+0x650/0x650
[  457.503090]  ? interrupt_entry+0xb5/0xc0
[  457.507161]  ? trace_hardirqs_off_caller+0xbb/0x310
[  457.512183]  ? ____cache_alloc_node+0x1c7/0x1e0
[  457.516860]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  457.521706]  ? trace_hardirqs_on_caller+0x310/0x310
[  457.526736]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  457.531589]  apic_timer_interrupt+0xf/0x20
[  457.535830] RIP: 0010:kmem_cache_alloc_node+0x247/0x730
[  457.541198] 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 42 f3
[  457.560116] RSP: 0018:ffff8881daf07450 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  457.567836] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff1103a491171
[  457.575114] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000282
[  457.582387] RBP: ffff8881daf074c0 R08: ffff8881d2488b88 R09: 0000000000000002
[  457.589663] R10: 0000000000000000 R11: ffff8881d24882c0 R12: ffff8881d9beec00
[  457.596951] R13: ffff8881d9beec00 R14: 0000000000000000 R15: 0000000000000282
[  457.604240]  ? apic_timer_interrupt+0xa/0x20
[  457.608681]  ? ipv6_get_ifaddr+0x42e/0x620
[  457.612933]  __alloc_skb+0x119/0x770
[  457.616656]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  457.621944]  ? netdev_alloc_frag+0x1f0/0x1f0
[  457.626356]  ? lock_downgrade+0x900/0x900
[  457.630513]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.636058]  ? refcount_sub_and_test_checked+0x203/0x310
[  457.641523]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  457.646983]  ? addrconf_rs_timer+0x690/0x690
[  457.651407]  ndisc_alloc_skb+0x144/0x340
[  457.655479]  ndisc_send_rs+0x331/0x6e0
[  457.659380]  addrconf_rs_timer+0x314/0x690
[  457.663626]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  457.667875]  call_timer_fn+0x272/0x920
[  457.671776]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  457.676012]  ? process_timeout+0x40/0x40
[  457.680091]  ? __run_timers+0x7da/0xc70
[  457.684072]  ? _raw_spin_unlock_irq+0x27/0x80
[  457.688577]  ? _raw_spin_unlock_irq+0x27/0x80
[  457.693071]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  457.697322]  ? lockdep_hardirqs_on+0x296/0x5b0
[  457.701909]  ? trace_hardirqs_on+0xbd/0x310
[  457.706257]  ? kasan_check_read+0x11/0x20
[  457.710417]  ? __run_timers+0x7da/0xc70
[  457.714392]  ? trace_hardirqs_off_caller+0x310/0x310
[  457.719506]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  457.723745]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  457.727978]  __run_timers+0x7e5/0xc70
[  457.731790]  ? timer_fixup_init+0x70/0x70
[  457.735957]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  457.740978]  ? zap_class+0x640/0x640
[  457.744700]  ? enqueue_hrtimer+0x1a5/0x560
[  457.748935]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  457.754139]  ? find_held_lock+0x36/0x1c0
[  457.758207]  ? zap_class+0x640/0x640
[  457.761962]  ? pvclock_read_flags+0x160/0x160
[  457.766461]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.772007]  ? check_preemption_disabled+0x48/0x280
[  457.777037]  ? __lock_is_held+0xb5/0x140
[  457.781106]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.786644]  ? check_preemption_disabled+0x48/0x280
[  457.791667]  run_timer_softirq+0x52/0xb0
[  457.795730]  ? rcu_read_lock_sched_held+0x14f/0x180
[  457.800749]  __do_softirq+0x308/0xb7e
[  457.804584]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  457.809086]  ? lock_downgrade+0x900/0x900
[  457.813245]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  457.818366]  ? pvclock_read_flags+0x160/0x160
[  457.822866]  ? lapic_next_event+0x5a/0x90
[  457.827019]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.832570]  ? kvm_clock_read+0x18/0x30
[  457.836544]  ? kvm_sched_clock_read+0x9/0x20
[  457.840964]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.846504]  ? check_preemption_disabled+0x48/0x280
[  457.851530]  irq_exit+0x17f/0x1c0
[  457.854991]  smp_apic_timer_interrupt+0x1cb/0x760
[  457.859833]  ? smp_reschedule_interrupt+0x109/0x650
[  457.864851]  ? smp_call_function_single_interrupt+0x650/0x650
[  457.870736]  ? interrupt_entry+0xb5/0xc0
[  457.874801]  ? trace_hardirqs_off_caller+0xbb/0x310
[  457.879818]  ? trace_hardirqs_off_caller+0xbb/0x310
[  457.884839]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  457.889687]  ? trace_hardirqs_on_caller+0x310/0x310
[  457.894703]  ? trace_hardirqs_on_caller+0x310/0x310
[  457.899719]  ? task_prio+0x50/0x50
[  457.903264]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.908805]  ? check_preemption_disabled+0x48/0x280
[  457.913831]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  457.918688]  apic_timer_interrupt+0xf/0x20
[  457.922918]  </IRQ>
[  457.925164] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  457.930101] 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 42 f3
[  457.949003] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  457.956714] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  457.963981] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  457.971252] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  457.978521] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  457.985791] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  457.993118]  skb_clone+0x1bb/0x500
[  457.996672]  ? skb_split+0x11e0/0x11e0
[  458.000561]  ? check_preemption_disabled+0x48/0x280
[  458.005585]  ? __this_cpu_preempt_check+0x1c/0x20
[  458.010427]  ? __bpf_redirect+0x55b/0xb60
[  458.014578]  ? __switch_to_asm+0x34/0x70
[  458.018636]  ? __switch_to_asm+0x40/0x70
[  458.022707]  bpf_clone_redirect+0xb9/0x490
[  458.026961]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  458.031988]  ? __sched_text_start+0x8/0x8
[  458.036156]  ? find_held_lock+0x36/0x1c0
[  458.040230]  ? lock_acquire+0x1ed/0x520
[  458.044207]  ? bpf_test_run+0x3cb/0x780
[  458.048186]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  458.053727]  ? check_preemption_disabled+0x48/0x280
[  458.058750]  ? kasan_check_read+0x11/0x20
[  458.062918]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  458.068203]  ? rcu_softirq_qs+0x20/0x20
[  458.072183]  ? preempt_schedule+0x4d/0x60
[  458.076335]  ? ___preempt_schedule+0x16/0x18
[  458.080778]  ? bpf_test_run+0x25d/0x780
[  458.084766]  ? netlink_diag_dump+0x2a0/0x2a0
[  458.089179]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  458.094723]  ? bpf_test_init.isra.10+0x70/0x100
[  458.099399]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  458.104167]  ? bpf_test_finish.isra.9+0x260/0x260
[  458.109013]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  458.114552]  ? fput+0x130/0x1a0
[  458.117855]  ? __bpf_prog_get+0x9b/0x290
[  458.121937]  ? bpf_test_finish.isra.9+0x260/0x260
[  458.126787]  ? bpf_prog_test_run+0x130/0x1a0
[  458.131204]  ? __x64_sys_bpf+0x3db/0x520
[  458.135280]  ? bpf_prog_get+0x20/0x20
[  458.139112]  ? do_syscall_64+0x1b9/0x820
[  458.143182]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  458.148551]  ? syscall_return_slowpath+0x5e0/0x5e0
[  458.153481]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  458.158328]  ? trace_hardirqs_on_caller+0x310/0x310
[  458.163346]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  458.168400]  ? prepare_exit_to_usermode+0x291/0x3b0
[  458.173439]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  458.178298]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  458.183683] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  458.184089] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  458.190705] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  458.190710] Call Trace:
[  458.190715]  <IRQ>
[  458.190735]  dump_stack+0x244/0x39d
[  458.190754]  ? dump_stack_print_info.cold.1+0x20/0x20
[  458.197280] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  458.206582]  warn_alloc.cold.116+0xb7/0x1bd
[  458.209139] syz-executor0 cpuset=syz0 mems_allowed=0
[  458.211283]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  458.244771]  ? lock_downgrade+0x900/0x900
[  458.248931]  ? trace_hardirqs_off+0xb8/0x310
[  458.253345]  ? trace_hardirqs_off+0xb8/0x310
[  458.257767]  __alloc_pages_slowpath+0x2651/0x2de0
[  458.262640]  ? warn_alloc+0x120/0x120
[  458.266451]  ? print_usage_bug+0xc0/0xc0
[  458.270513]  ? warn_alloc+0x120/0x120
[  458.274321]  ? warn_alloc+0x120/0x120
[  458.278123]  ? print_usage_bug+0xc0/0xc0
[  458.282203]  ? print_usage_bug+0xc0/0xc0
[  458.286268]  ? __lock_acquire+0x62f/0x4c20
[  458.290512]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  458.296137]  ? should_fail+0x22d/0xd01
[  458.300032]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  458.305138]  ? __lock_acquire+0x62f/0x4c20
[  458.309377]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  458.314650]  ? __lock_acquire+0x62f/0x4c20
[  458.318882]  ? should_fail+0x22d/0xd01
[  458.322772]  ? find_held_lock+0x36/0x1c0
[  458.326840]  ? mark_held_locks+0x130/0x130
[  458.331089]  ? mark_held_locks+0x130/0x130
[  458.335322]  ? zap_class+0x640/0x640
[  458.339041]  ? zap_class+0x640/0x640
[  458.342762]  ? print_usage_bug+0xc0/0xc0
[  458.346824]  ? do_raw_spin_unlock+0xa7/0x330
[  458.351234]  ? zap_class+0x640/0x640
[  458.354980]  ? print_usage_bug+0xc0/0xc0
[  458.359054]  ? wq_watchdog_touch+0x9c/0xfe
[  458.363301]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  458.368840]  ? check_preemption_disabled+0x48/0x280
[  458.373897]  ? __lock_is_held+0xb5/0x140
[  458.377996]  __alloc_pages_nodemask+0xad8/0xea0
[  458.382665]  ? zap_class+0x640/0x640
[  458.386388]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  458.391416]  ? find_held_lock+0x36/0x1c0
[  458.395495]  ? ____cache_alloc_node+0x1c7/0x1e0
[  458.400167]  ? lock_downgrade+0x900/0x900
[  458.404328]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  458.409875]  cache_grow_begin+0xa5/0x8c0
[  458.413934]  ? do_raw_spin_unlock+0xa7/0x330
[  458.418350]  fallback_alloc+0x204/0x2e0
[  458.422331]  ____cache_alloc_node+0x1c7/0x1e0
[  458.426836]  kmem_cache_alloc_node+0xe3/0x730
[  458.431352]  ? ipv6_get_ifaddr+0x42e/0x620
[  458.435595]  __alloc_skb+0x119/0x770
[  458.439309]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  458.444591]  ? netdev_alloc_frag+0x1f0/0x1f0
[  458.448999]  ? lock_downgrade+0x900/0x900
[  458.453159]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  458.458696]  ? refcount_sub_and_test_checked+0x203/0x310
[  458.464151]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  458.469606]  ? addrconf_rs_timer+0x690/0x690
[  458.474030]  ndisc_alloc_skb+0x144/0x340
[  458.478103]  ndisc_send_rs+0x331/0x6e0
[  458.481996]  addrconf_rs_timer+0x314/0x690
[  458.486241]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  458.490486]  call_timer_fn+0x272/0x920
[  458.494378]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  458.498616]  ? process_timeout+0x40/0x40
[  458.502689]  ? mark_held_locks+0xc7/0x130
[  458.506837]  ? _raw_spin_unlock_irq+0x27/0x80
[  458.511330]  ? _raw_spin_unlock_irq+0x27/0x80
[  458.515825]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  458.520062]  ? lockdep_hardirqs_on+0x296/0x5b0
[  458.524652]  ? trace_hardirqs_on+0xbd/0x310
[  458.528972]  ? kasan_check_read+0x11/0x20
[  458.533118]  ? __run_timers+0x7da/0xc70
[  458.537102]  ? trace_hardirqs_off_caller+0x310/0x310
[  458.542219]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  458.546464]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  458.550695]  __run_timers+0x7e5/0xc70
[  458.554508]  ? timer_fixup_init+0x70/0x70
[  458.558658]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  458.563677]  ? zap_class+0x640/0x640
[  458.567401]  ? print_usage_bug+0xc0/0xc0
[  458.571468]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  458.576664]  ? find_held_lock+0x36/0x1c0
[  458.580734]  ? zap_class+0x640/0x640
[  458.584465]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  458.590009]  ? check_preemption_disabled+0x48/0x280
[  458.595038]  ? __lock_is_held+0xb5/0x140
[  458.599107]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  458.604650]  ? check_preemption_disabled+0x48/0x280
[  458.609675]  run_timer_softirq+0x52/0xb0
[  458.613739]  ? rcu_read_lock_sched_held+0x14f/0x180
[  458.618760]  __do_softirq+0x308/0xb7e
[  458.622567]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  458.627069]  ? lock_downgrade+0x900/0x900
[  458.631233]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  458.636347]  ? pvclock_read_flags+0x160/0x160
[  458.640849]  ? lapic_next_event+0x5a/0x90
[  458.645003]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  458.650548]  ? kvm_clock_read+0x18/0x30
[  458.654524]  ? kvm_sched_clock_read+0x9/0x20
[  458.658962]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  458.664505]  ? check_preemption_disabled+0x48/0x280
[  458.669536]  irq_exit+0x17f/0x1c0
[  458.672996]  smp_apic_timer_interrupt+0x1cb/0x760
[  458.677839]  ? smp_reschedule_interrupt+0x109/0x650
[  458.682861]  ? smp_call_function_single_interrupt+0x650/0x650
[  458.688755]  ? interrupt_entry+0xb5/0xc0
[  458.692818]  ? trace_hardirqs_off_caller+0xbb/0x310
[  458.697835]  ? trace_hardirqs_off_caller+0xbb/0x310
[  458.702889]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  458.707733]  ? trace_hardirqs_on_caller+0x310/0x310
[  458.712748]  ? trace_hardirqs_on_caller+0x310/0x310
[  458.717776]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  458.722629]  apic_timer_interrupt+0xf/0x20
[  458.726860]  </IRQ>
[  458.729106] RIP: 0010:dump_stack+0x358/0x39d
[  458.733517] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  458.752422] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  458.760136] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  458.767405] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  458.774679] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  458.781957] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  458.789239] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  458.796530]  ? dump_stack+0x34f/0x39d
[  458.800345]  ? dump_stack_print_info.cold.1+0x20/0x20
[  458.805543]  ? mark_held_locks+0x130/0x130
[  458.809779]  ? mark_held_locks+0x130/0x130
[  458.814020]  dump_header+0x27b/0xf72
[  458.817747]  ? pagefault_out_of_memory+0x197/0x197
[  458.822687]  ? __lock_acquire+0x62f/0x4c20
[  458.826923]  ? percpu_ref_get_many+0x240/0x240
[  458.831510]  ? print_usage_bug+0xc0/0xc0
[  458.835576]  ? zap_class+0x640/0x640
[  458.839290]  ? print_usage_bug+0xc0/0xc0
[  458.843354]  ? print_usage_bug+0xc0/0xc0
[  458.847415]  ? zap_class+0x640/0x640
[  458.851142]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  458.856682]  ? find_held_lock+0x36/0x1c0
[  458.860753]  ? mark_held_locks+0xc7/0x130
[  458.864905]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  458.870009]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  458.875120]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  458.879708]  ? trace_hardirqs_on+0xbd/0x310
[  458.884029]  ? kasan_check_read+0x11/0x20
[  458.888179]  ? ___ratelimit+0x3b4/0x672
[  458.892154]  ? trace_hardirqs_off_caller+0x310/0x310
[  458.897262]  ? trace_hardirqs_on+0x310/0x310
[  458.901672]  ? lock_downgrade+0x900/0x900
[  458.905827]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  458.910937]  ? ___ratelimit+0x3b9/0x672
[  458.914918]  ? idr_get_free+0xf70/0xf70
[  458.918909]  ? find_held_lock+0x36/0x1c0
[  458.922992]  oom_kill_process.cold.27+0x10/0x903
[  458.927752]  ? zap_class+0x640/0x640
[  458.931482]  ? check_preemption_disabled+0x48/0x280
[  458.936519]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  458.941460]  ? kasan_check_read+0x11/0x20
[  458.945622]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  458.950910]  ? oom_evaluate_task+0x540/0x540
[  458.955371]  ? find_held_lock+0x36/0x1c0
[  458.959455]  ? out_of_memory+0x974/0x1430
[  458.963608]  ? lock_downgrade+0x900/0x900
[  458.967761]  ? check_preemption_disabled+0x48/0x280
[  458.972803]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  458.977748]  ? kasan_check_read+0x11/0x20
[  458.981898]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  458.987182]  ? rcu_softirq_qs+0x20/0x20
[  458.991169]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  458.996712]  ? oom_evaluate_task+0x302/0x540
[  459.001142]  out_of_memory+0xa84/0x1430
[  459.005164]  ? oom_killer_disable+0x3a0/0x3a0
[  459.009678]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  459.014617]  ? __ww_mutex_check_waiters+0x160/0x160
[  459.019652]  __alloc_pages_slowpath+0x232c/0x2de0
[  459.024530]  ? warn_alloc+0x120/0x120
[  459.028341]  ? mark_held_locks+0x130/0x130
[  459.032584]  ? find_get_entry+0xaae/0x1120
[  459.036831]  ? filemap_map_pages+0x1a20/0x1a20
[  459.041421]  ? zap_class+0x640/0x640
[  459.045154]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  459.050696]  ? check_preemption_disabled+0x48/0x280
[  459.055718]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  459.061260]  ? should_fail+0x22d/0xd01
[  459.065159]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  459.070267]  ? zap_class+0x640/0x640
[  459.074013]  ? __lock_is_held+0xb5/0x140
[  459.078093]  ? mark_held_locks+0x130/0x130
[  459.082340]  ? lock_release+0xa00/0xa00
[  459.086319]  ? perf_trace_sched_process_exec+0x860/0x860
[  459.091773]  ? xa_load+0x2ba/0x460
[  459.095316]  ? lock_downgrade+0x900/0x900
[  459.099488]  ? __might_sleep+0x95/0x190
[  459.103475]  __alloc_pages_nodemask+0xad8/0xea0
[  459.108160]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  459.113184]  ? __page_cache_alloc+0x191/0x5c0
[  459.117685]  ? xa_load+0x2e1/0x460
[  459.121227]  ? xa_clear_mark+0x40/0x40
[  459.125121]  ? zap_class+0x640/0x640
[  459.128846]  ? zap_class+0x640/0x640
[  459.132575]  ? zap_class+0x640/0x640
[  459.136293]  ? __do_page_cache_readahead+0x663/0x810
[  459.141417]  ? find_held_lock+0x36/0x1c0
[  459.145500]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  459.151050]  alloc_pages_current+0x173/0x350
[  459.155495]  __page_cache_alloc+0x38c/0x5c0
[  459.159834]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  459.164768]  ? kasan_check_read+0x11/0x20
[  459.168934]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  459.174221]  ? generic_perform_write+0x6a0/0x6a0
[  459.179484]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  459.185038]  ? check_preemption_disabled+0x48/0x280
[  459.190119]  filemap_fault+0x1595/0x25f0
[  459.194203]  ? __lock_page_or_retry+0xa00/0xa00
[  459.198881]  ? mark_held_locks+0x130/0x130
[  459.203147]  ? filemap_map_pages+0xd6b/0x1a20
[  459.207650]  ? lock_downgrade+0x900/0x900
[  459.211807]  ? check_preemption_disabled+0x48/0x280
[  459.216833]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  459.221768]  ? kasan_check_read+0x11/0x20
[  459.225920]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  459.231249]  ? rcu_softirq_qs+0x20/0x20
[  459.235272]  ? filemap_map_pages+0xd92/0x1a20
[  459.239785]  ? find_get_entries_tag+0x1400/0x1400
[  459.244637]  ? debug_object_destroy+0x2b0/0x2b0
[  459.249311]  ? lock_pi_update_atomic+0x150/0x150
[  459.254074]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  459.259642]  ? lock_acquire+0x1ed/0x520
[  459.263627]  ? ext4_filemap_fault+0x7a/0xad
[  459.267965]  ? lock_release+0xa00/0xa00
[  459.271941]  ? perf_trace_sched_process_exec+0x860/0x860
[  459.277415]  ? print_usage_bug+0xc0/0xc0
[  459.281503]  ? print_usage_bug+0xc0/0xc0
[  459.285581]  ? down_read+0x8d/0x120
[  459.289209]  ? ext4_filemap_fault+0x7a/0xad
[  459.293534]  ? __down_interruptible+0x700/0x700
[  459.298218]  ext4_filemap_fault+0x82/0xad
[  459.302375]  __do_fault+0x100/0x6b0
[  459.306004]  ? find_held_lock+0x36/0x1c0
[  459.310074]  ? pmd_devmap_trans_unstable+0x220/0x220
[  459.315200]  ? mark_held_locks+0x130/0x130
[  459.319444]  ? mark_held_locks+0x130/0x130
[  459.323686]  ? debug_smp_processor_id+0x1c/0x20
[  459.328357]  ? perf_trace_lock+0x14d/0x7a0
[  459.332606]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  459.338158]  __handle_mm_fault+0x3ea0/0x5be0
[  459.342579]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  459.347436]  ? lock_is_held_type+0x210/0x210
[  459.351859]  ? __switch_to_asm+0x34/0x70
[  459.355923]  ? __switch_to_asm+0x34/0x70
[  459.360000]  ? zap_class+0x640/0x640
[  459.363716]  ? zap_class+0x640/0x640
[  459.367436]  ? __x64_sys_futex+0x53e/0x6a0
[  459.371684]  ? find_held_lock+0x36/0x1c0
[  459.375762]  ? handle_mm_fault+0x42a/0xc70
[  459.380008]  ? lock_downgrade+0x900/0x900
[  459.384161]  ? check_preemption_disabled+0x48/0x280
[  459.389184]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  459.394119]  ? kasan_check_read+0x11/0x20
[  459.398271]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  459.403553]  ? rcu_softirq_qs+0x20/0x20
[  459.407536]  ? trace_hardirqs_off_caller+0x310/0x310
[  459.412646]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  459.418193]  ? check_preemption_disabled+0x48/0x280
[  459.423224]  handle_mm_fault+0x54f/0xc70
[  459.427293]  ? __handle_mm_fault+0x5be0/0x5be0
[  459.431886]  ? find_vma+0x34/0x190
[  459.435435]  __do_page_fault+0x5e8/0xe60
[  459.439503]  ? trace_hardirqs_off+0xb8/0x310
[  459.443944]  do_page_fault+0xf2/0x7e0
[  459.447752]  ? vmalloc_sync_all+0x30/0x30
[  459.451907]  ? error_entry+0x70/0xd0
[  459.455626]  ? trace_hardirqs_off_caller+0xbb/0x310
[  459.460644]  ? trace_hardirqs_on_caller+0xc0/0x310
[  459.465577]  ? syscall_return_slowpath+0x5e0/0x5e0
[  459.470512]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  459.475365]  ? trace_hardirqs_on_caller+0x310/0x310
[  459.480388]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  459.485859]  ? prepare_exit_to_usermode+0x291/0x3b0
[  459.490892]  ? page_fault+0x8/0x30
[  459.494468]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  459.499327]  ? page_fault+0x8/0x30
[  459.502880]  page_fault+0x1e/0x30
[  459.506331] RIP: 0033:0x45ddf3
[  459.509536] Code: Bad RIP value.
[  459.512912] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  459.518275] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  459.525547] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  459.532831] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  459.540119] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  459.547392] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  459.554695] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  459.554697] Mem-Info:
[  459.554729] active_anon:45985 inactive_anon:296 isolated_anon:0
[  459.554729]  active_file:15 inactive_file:8 isolated_file:0
[  459.554729]  unevictable:0 dirty:0 writeback:0 unstable:0
[  459.554729]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  459.554729]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  459.554729]  free:13771 free_pcp:249 free_cma:0
[  459.562069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  459.562086] Call Trace:
[  459.564564] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  459.597340]  <IRQ>
[  459.606697] 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
[  459.609285]  dump_stack+0x244/0x39d
[  459.636937] lowmem_reserve[]: 0 2818 6321 6321
[  459.639112]  ? dump_stack_print_info.cold.1+0x20/0x20
[  459.665201] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  459.668844]  warn_alloc.cold.116+0xb7/0x1bd
[  459.673382] lowmem_reserve[]: 0 0 3503 3503
[  459.678582]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  459.706063] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  459.710409]  ? lock_downgrade+0x900/0x900
[  459.714705] lowmem_reserve[]: 0 0 0 0
[  459.719554]  ? trace_hardirqs_off+0xb8/0x310
[  459.748611] 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
[  459.752800]  ? trace_hardirqs_off+0xb8/0x310
[  459.756567] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  459.760990]  __alloc_pages_slowpath+0x2651/0x2de0
[  459.774496] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  459.778959]  ? warn_alloc+0x120/0x120
[  459.794014] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  459.798886]  ? print_usage_bug+0xc0/0xc0
[  459.814328] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  459.818123]  ? warn_alloc+0x120/0x120
[  459.826935] 376 total pagecache pages
[  459.831011]  ? warn_alloc+0x120/0x120
[  459.839566] 0 pages in swap cache
[  459.843359]  ? print_usage_bug+0xc0/0xc0
[  459.847138] Swap cache stats: add 0, delete 0, find 0/0
[  459.850979]  ? print_usage_bug+0xc0/0xc0
[  459.854406] Free swap  = 0kB
[  459.858461]  ? __lock_acquire+0x62f/0x4c20
[  459.863798] Total swap = 0kB
[  459.867852]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  459.870839] 1965979 pages RAM
[  459.875090]  ? should_fail+0x22d/0xd01
[  459.878089] 0 pages HighMem/MovableOnly
[  459.883617]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  459.886714] 342854 pages reserved
[  459.890613]  ? __lock_acquire+0x62f/0x4c20
[  459.894566] 0 pages cma reserved
[  459.899663]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  459.903217] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  459.907397]  ? __lock_acquire+0x62f/0x4c20
[  459.907413]  ? should_fail+0x22d/0xd01
[  459.910861] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  459.915870]  ? find_held_lock+0x36/0x1c0
[  459.922341] syz-fuzzer cpuset=/ mems_allowed=0
[  459.926572]  ? mark_held_locks+0x130/0x130
[  459.953475]  ? mark_held_locks+0x130/0x130
[  459.957708]  ? zap_class+0x640/0x640
[  459.961436]  ? zap_class+0x640/0x640
[  459.965152]  ? print_usage_bug+0xc0/0xc0
[  459.969210]  ? do_raw_spin_unlock+0xa7/0x330
[  459.973617]  ? zap_class+0x640/0x640
[  459.977329]  ? print_usage_bug+0xc0/0xc0
[  459.981406]  ? wq_watchdog_touch+0x9c/0xfe
[  459.985651]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  459.991194]  ? check_preemption_disabled+0x48/0x280
[  459.996225]  ? __lock_is_held+0xb5/0x140
[  460.000293]  __alloc_pages_nodemask+0xad8/0xea0
[  460.004968]  ? zap_class+0x640/0x640
[  460.008695]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  460.013754]  ? find_held_lock+0x36/0x1c0
[  460.017826]  ? ____cache_alloc_node+0x1c7/0x1e0
[  460.022499]  ? lock_downgrade+0x900/0x900
[  460.026659]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  460.032204]  cache_grow_begin+0xa5/0x8c0
[  460.036278]  ? do_raw_spin_unlock+0xa7/0x330
[  460.040694]  fallback_alloc+0x204/0x2e0
[  460.044680]  ____cache_alloc_node+0x1c7/0x1e0
[  460.049183]  kmem_cache_alloc_node+0xe3/0x730
[  460.053678]  ? ipv6_get_ifaddr+0x42e/0x620
[  460.057924]  __alloc_skb+0x119/0x770
[  460.061641]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  460.066938]  ? netdev_alloc_frag+0x1f0/0x1f0
[  460.071366]  ? lock_downgrade+0x900/0x900
[  460.075521]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  460.081061]  ? refcount_sub_and_test_checked+0x203/0x310
[  460.086522]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  460.091976]  ? addrconf_rs_timer+0x690/0x690
[  460.096398]  ndisc_alloc_skb+0x144/0x340
[  460.100465]  ndisc_send_rs+0x331/0x6e0
[  460.104362]  addrconf_rs_timer+0x314/0x690
[  460.108602]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  460.112846]  call_timer_fn+0x272/0x920
[  460.116754]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  460.120989]  ? process_timeout+0x40/0x40
[  460.125062]  ? __run_timers+0x7da/0xc70
[  460.129051]  ? _raw_spin_unlock_irq+0x27/0x80
[  460.133554]  ? _raw_spin_unlock_irq+0x27/0x80
[  460.138050]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  460.142294]  ? lockdep_hardirqs_on+0x296/0x5b0
[  460.146882]  ? trace_hardirqs_on+0xbd/0x310
[  460.151203]  ? kasan_check_read+0x11/0x20
[  460.155349]  ? __run_timers+0x7da/0xc70
[  460.159329]  ? trace_hardirqs_off_caller+0x310/0x310
[  460.164436]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  460.168681]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  460.172914]  __run_timers+0x7e5/0xc70
[  460.176735]  ? timer_fixup_init+0x70/0x70
[  460.180887]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  460.185906]  ? zap_class+0x640/0x640
[  460.189627]  ? enqueue_hrtimer+0x1a5/0x560
[  460.193866]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  460.199069]  ? find_held_lock+0x36/0x1c0
[  460.203152]  ? zap_class+0x640/0x640
[  460.206870]  ? pvclock_read_flags+0x160/0x160
[  460.211371]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  460.216914]  ? check_preemption_disabled+0x48/0x280
[  460.221952]  ? __lock_is_held+0xb5/0x140
[  460.226017]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  460.231556]  ? check_preemption_disabled+0x48/0x280
[  460.236579]  run_timer_softirq+0x52/0xb0
[  460.240642]  ? rcu_read_lock_sched_held+0x14f/0x180
[  460.245665]  __do_softirq+0x308/0xb7e
[  460.249471]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  460.253969]  ? lock_downgrade+0x900/0x900
[  460.258125]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  460.263236]  ? pvclock_read_flags+0x160/0x160
[  460.267736]  ? lapic_next_event+0x5a/0x90
[  460.271889]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  460.277434]  ? kvm_clock_read+0x18/0x30
[  460.281412]  ? kvm_sched_clock_read+0x9/0x20
[  460.285825]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  460.291367]  ? check_preemption_disabled+0x48/0x280
[  460.296392]  irq_exit+0x17f/0x1c0
[  460.299852]  smp_apic_timer_interrupt+0x1cb/0x760
[  460.304696]  ? smp_reschedule_interrupt+0x109/0x650
[  460.309716]  ? smp_call_function_single_interrupt+0x650/0x650
[  460.316123]  ? interrupt_entry+0xb5/0xc0
[  460.320189]  ? trace_hardirqs_off_caller+0xbb/0x310
[  460.325210]  ? trace_hardirqs_off_caller+0xbb/0x310
[  460.330234]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  460.335084]  ? trace_hardirqs_on_caller+0x310/0x310
[  460.340115]  ? trace_hardirqs_on_caller+0x310/0x310
[  460.345137]  ? task_prio+0x50/0x50
[  460.348680]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  460.354227]  ? check_preemption_disabled+0x48/0x280
[  460.359252]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  460.364112]  apic_timer_interrupt+0xf/0x20
[  460.368358]  </IRQ>
[  460.370600] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  460.376255] 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 42 f3
[  460.395161] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  460.402876] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  460.410147] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  460.417415] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  460.424684] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  460.431960] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  460.439278]  skb_clone+0x1bb/0x500
[  460.442824]  ? skb_split+0x11e0/0x11e0
[  460.446715]  ? check_preemption_disabled+0x48/0x280
[  460.451739]  ? __this_cpu_preempt_check+0x1c/0x20
[  460.456585]  ? __bpf_redirect+0x55b/0xb60
[  460.460739]  ? __switch_to_asm+0x34/0x70
[  460.464802]  ? __switch_to_asm+0x40/0x70
[  460.468889]  bpf_clone_redirect+0xb9/0x490
[  460.473135]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  460.478160]  ? __sched_text_start+0x8/0x8
[  460.482322]  ? find_held_lock+0x36/0x1c0
[  460.486392]  ? lock_acquire+0x1ed/0x520
[  460.490370]  ? bpf_test_run+0x3cb/0x780
[  460.494347]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  460.499886]  ? check_preemption_disabled+0x48/0x280
[  460.504912]  ? kasan_check_read+0x11/0x20
[  460.509068]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  460.514359]  ? rcu_softirq_qs+0x20/0x20
[  460.518335]  ? preempt_schedule+0x4d/0x60
[  460.522486]  ? ___preempt_schedule+0x16/0x18
[  460.526921]  ? bpf_test_run+0x25d/0x780
[  460.530917]  ? netlink_diag_dump+0x2a0/0x2a0
[  460.535342]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  460.540878]  ? bpf_test_init.isra.10+0x70/0x100
[  460.545558]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  460.550328]  ? bpf_test_finish.isra.9+0x260/0x260
[  460.555173]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  460.560711]  ? fput+0x130/0x1a0
[  460.563998]  ? __bpf_prog_get+0x9b/0x290
[  460.568064]  ? bpf_test_finish.isra.9+0x260/0x260
[  460.572918]  ? bpf_prog_test_run+0x130/0x1a0
[  460.577335]  ? __x64_sys_bpf+0x3db/0x520
[  460.581413]  ? bpf_prog_get+0x20/0x20
[  460.585239]  ? do_syscall_64+0x1b9/0x820
[  460.589310]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  460.594678]  ? syscall_return_slowpath+0x5e0/0x5e0
[  460.599609]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  460.604453]  ? trace_hardirqs_on_caller+0x310/0x310
[  460.609473]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  460.614492]  ? prepare_exit_to_usermode+0x291/0x3b0
[  460.619514]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  460.624365]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  460.629747] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  460.629817] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  460.636763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  460.636772] Call Trace:
[  460.643637] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  460.652590]  <IRQ>
[  460.652623]  dump_stack+0x244/0x39d
[  460.652643]  ? dump_stack_print_info.cold.1+0x20/0x20
[  460.655461] syz-executor0 cpuset=syz0 mems_allowed=0
[  460.665954]  warn_alloc.cold.116+0xb7/0x1bd
[  460.686430]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  460.691282]  ? lock_downgrade+0x900/0x900
[  460.695445]  ? trace_hardirqs_off+0xb8/0x310
[  460.699864]  ? trace_hardirqs_off+0xb8/0x310
[  460.704287]  __alloc_pages_slowpath+0x2651/0x2de0
[  460.709161]  ? warn_alloc+0x120/0x120
[  460.712963]  ? print_usage_bug+0xc0/0xc0
[  460.717054]  ? warn_alloc+0x120/0x120
[  460.720899]  ? warn_alloc+0x120/0x120
[  460.724724]  ? print_usage_bug+0xc0/0xc0
[  460.728799]  ? kvm_clock_read+0x18/0x30
[  460.732804]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  460.737825]  ? print_usage_bug+0xc0/0xc0
[  460.741907]  ? __lock_acquire+0x62f/0x4c20
[  460.746150]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  460.751689]  ? should_fail+0x22d/0xd01
[  460.755584]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  460.760870]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  460.765980]  ? __lock_acquire+0x62f/0x4c20
[  460.770220]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  460.775346]  ? __lock_acquire+0x62f/0x4c20
[  460.779580]  ? should_fail+0x22d/0xd01
[  460.783469]  ? rcu_irq_exit+0x1a2/0x390
[  460.787460]  ? mark_held_locks+0x130/0x130
[  460.791701]  ? mark_held_locks+0x130/0x130
[  460.795946]  ? mark_held_locks+0xc7/0x130
[  460.800104]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  460.805121]  ? zap_class+0x640/0x640
[  460.808832]  ? print_usage_bug+0xc0/0xc0
[  460.812926]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  460.818491]  ? check_preemption_disabled+0x48/0x280
[  460.823529]  ? __lock_is_held+0xb5/0x140
[  460.827596]  __alloc_pages_nodemask+0xad8/0xea0
[  460.832270]  ? zap_class+0x640/0x640
[  460.836007]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  460.841049]  ? find_held_lock+0x36/0x1c0
[  460.845130]  ? ____cache_alloc_node+0x1c7/0x1e0
[  460.849815]  ? lock_downgrade+0x900/0x900
[  460.853969]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  460.859513]  cache_grow_begin+0xa5/0x8c0
[  460.863574]  ? do_raw_spin_unlock+0xa7/0x330
[  460.868005]  fallback_alloc+0x204/0x2e0
[  460.871991]  ____cache_alloc_node+0x1c7/0x1e0
[  460.876491]  kmem_cache_alloc_node+0xe3/0x730
[  460.880989]  ? ipv6_get_ifaddr+0x42e/0x620
[  460.885234]  __alloc_skb+0x119/0x770
[  460.888944]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  460.894226]  ? netdev_alloc_frag+0x1f0/0x1f0
[  460.898636]  ? lock_downgrade+0x900/0x900
[  460.902806]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  460.908342]  ? refcount_sub_and_test_checked+0x203/0x310
[  460.913796]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  460.919247]  ? addrconf_rs_timer+0x690/0x690
[  460.923666]  ndisc_alloc_skb+0x144/0x340
[  460.927733]  ndisc_send_rs+0x331/0x6e0
[  460.931625]  addrconf_rs_timer+0x314/0x690
[  460.935886]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  460.940145]  call_timer_fn+0x272/0x920
[  460.944057]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  460.948318]  ? process_timeout+0x40/0x40
[  460.952385]  ? mark_held_locks+0xc7/0x130
[  460.956535]  ? _raw_spin_unlock_irq+0x27/0x80
[  460.961046]  ? _raw_spin_unlock_irq+0x27/0x80
[  460.965547]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  460.969785]  ? lockdep_hardirqs_on+0x296/0x5b0
[  460.974376]  ? trace_hardirqs_on+0xbd/0x310
[  460.978704]  ? kasan_check_read+0x11/0x20
[  460.982850]  ? __run_timers+0x7da/0xc70
[  460.986867]  ? trace_hardirqs_off_caller+0x310/0x310
[  460.991987]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  460.996261]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  461.000495]  __run_timers+0x7e5/0xc70
[  461.004305]  ? timer_fixup_init+0x70/0x70
[  461.008477]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  461.013515]  ? zap_class+0x640/0x640
[  461.017237]  ? print_usage_bug+0xc0/0xc0
[  461.021299]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  461.026512]  ? find_held_lock+0x36/0x1c0
[  461.030578]  ? zap_class+0x640/0x640
[  461.034301]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  461.039836]  ? check_preemption_disabled+0x48/0x280
[  461.044861]  ? __lock_is_held+0xb5/0x140
[  461.048924]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  461.054510]  ? check_preemption_disabled+0x48/0x280
[  461.059534]  run_timer_softirq+0x52/0xb0
[  461.063599]  ? rcu_read_lock_sched_held+0x14f/0x180
[  461.068622]  __do_softirq+0x308/0xb7e
[  461.072427]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  461.076933]  ? lock_downgrade+0x900/0x900
[  461.081093]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  461.086207]  ? pvclock_read_flags+0x160/0x160
[  461.090710]  ? lapic_next_event+0x5a/0x90
[  461.094861]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  461.100409]  ? kvm_clock_read+0x18/0x30
[  461.104390]  ? kvm_sched_clock_read+0x9/0x20
[  461.108800]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  461.114358]  ? check_preemption_disabled+0x48/0x280
[  461.119387]  irq_exit+0x17f/0x1c0
[  461.122843]  smp_apic_timer_interrupt+0x1cb/0x760
[  461.127687]  ? smp_reschedule_interrupt+0x109/0x650
[  461.132710]  ? smp_call_function_single_interrupt+0x650/0x650
[  461.138596]  ? interrupt_entry+0xb5/0xc0
[  461.142662]  ? trace_hardirqs_off_caller+0xbb/0x310
[  461.147676]  ? trace_hardirqs_off_caller+0xbb/0x310
[  461.152694]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  461.157537]  ? trace_hardirqs_on_caller+0x310/0x310
[  461.162559]  ? trace_hardirqs_on_caller+0x310/0x310
[  461.167586]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  461.172438]  apic_timer_interrupt+0xf/0x20
[  461.176671]  </IRQ>
[  461.178915] RIP: 0010:dump_stack+0x358/0x39d
[  461.183774] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  461.202672] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  461.210392] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  461.217661] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  461.224945] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  461.232214] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  461.239484] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  461.246779]  ? dump_stack+0x34f/0x39d
[  461.250597]  ? dump_stack_print_info.cold.1+0x20/0x20
[  461.255794]  ? mark_held_locks+0x130/0x130
[  461.260067]  ? mark_held_locks+0x130/0x130
[  461.264314]  dump_header+0x27b/0xf72
[  461.268041]  ? pagefault_out_of_memory+0x197/0x197
[  461.272983]  ? __lock_acquire+0x62f/0x4c20
[  461.277222]  ? percpu_ref_get_many+0x240/0x240
[  461.281811]  ? print_usage_bug+0xc0/0xc0
[  461.285914]  ? zap_class+0x640/0x640
[  461.289631]  ? print_usage_bug+0xc0/0xc0
[  461.293691]  ? print_usage_bug+0xc0/0xc0
[  461.297755]  ? zap_class+0x640/0x640
[  461.301476]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  461.307021]  ? find_held_lock+0x36/0x1c0
[  461.311106]  ? mark_held_locks+0xc7/0x130
[  461.315260]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  461.320377]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  461.325484]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  461.330071]  ? trace_hardirqs_on+0xbd/0x310
[  461.334406]  ? kasan_check_read+0x11/0x20
[  461.338555]  ? ___ratelimit+0x3b4/0x672
[  461.342532]  ? trace_hardirqs_off_caller+0x310/0x310
[  461.347639]  ? trace_hardirqs_on+0x310/0x310
[  461.352048]  ? lock_downgrade+0x900/0x900
[  461.356213]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  461.361318]  ? ___ratelimit+0x3b9/0x672
[  461.365296]  ? idr_get_free+0xf70/0xf70
[  461.369275]  ? find_held_lock+0x36/0x1c0
[  461.373349]  oom_kill_process.cold.27+0x10/0x903
[  461.378113]  ? zap_class+0x640/0x640
[  461.381844]  ? check_preemption_disabled+0x48/0x280
[  461.386911]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  461.391846]  ? kasan_check_read+0x11/0x20
[  461.395992]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  461.401270]  ? oom_evaluate_task+0x540/0x540
[  461.405681]  ? find_held_lock+0x36/0x1c0
[  461.409748]  ? out_of_memory+0x974/0x1430
[  461.413897]  ? lock_downgrade+0x900/0x900
[  461.418057]  ? check_preemption_disabled+0x48/0x280
[  461.423091]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  461.428022]  ? kasan_check_read+0x11/0x20
[  461.432167]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  461.437463]  ? rcu_softirq_qs+0x20/0x20
[  461.441451]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  461.446989]  ? oom_evaluate_task+0x302/0x540
[  461.451401]  out_of_memory+0xa84/0x1430
[  461.455385]  ? oom_killer_disable+0x3a0/0x3a0
[  461.459888]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  461.464839]  ? __ww_mutex_check_waiters+0x160/0x160
[  461.469907]  __alloc_pages_slowpath+0x232c/0x2de0
[  461.474787]  ? warn_alloc+0x120/0x120
[  461.478603]  ? mark_held_locks+0x130/0x130
[  461.482863]  ? find_get_entry+0xaae/0x1120
[  461.487116]  ? filemap_map_pages+0x1a20/0x1a20
[  461.491704]  ? zap_class+0x640/0x640
[  461.495428]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  461.500974]  ? check_preemption_disabled+0x48/0x280
[  461.505995]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  461.511530]  ? should_fail+0x22d/0xd01
[  461.515425]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  461.520534]  ? zap_class+0x640/0x640
[  461.524303]  ? __lock_is_held+0xb5/0x140
[  461.528369]  ? mark_held_locks+0x130/0x130
[  461.532605]  ? lock_release+0xa00/0xa00
[  461.536590]  ? perf_trace_sched_process_exec+0x860/0x860
[  461.542040]  ? xa_load+0x2ba/0x460
[  461.545582]  ? lock_downgrade+0x900/0x900
[  461.549732]  ? __might_sleep+0x95/0x190
[  461.553710]  __alloc_pages_nodemask+0xad8/0xea0
[  461.558386]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  461.563406]  ? __page_cache_alloc+0x191/0x5c0
[  461.567896]  ? xa_load+0x2e1/0x460
[  461.571436]  ? xa_clear_mark+0x40/0x40
[  461.575335]  ? zap_class+0x640/0x640
[  461.579054]  ? zap_class+0x640/0x640
[  461.582818]  ? zap_class+0x640/0x640
[  461.586531]  ? __do_page_cache_readahead+0x663/0x810
[  461.591643]  ? find_held_lock+0x36/0x1c0
[  461.595715]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  461.601277]  alloc_pages_current+0x173/0x350
[  461.605696]  __page_cache_alloc+0x38c/0x5c0
[  461.610017]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  461.614944]  ? kasan_check_read+0x11/0x20
[  461.619099]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  461.624380]  ? generic_perform_write+0x6a0/0x6a0
[  461.629137]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  461.634674]  ? check_preemption_disabled+0x48/0x280
[  461.639711]  filemap_fault+0x1595/0x25f0
[  461.643791]  ? __lock_page_or_retry+0xa00/0xa00
[  461.648466]  ? mark_held_locks+0x130/0x130
[  461.652712]  ? filemap_map_pages+0xd6b/0x1a20
[  461.657209]  ? lock_downgrade+0x900/0x900
[  461.661358]  ? check_preemption_disabled+0x48/0x280
[  461.666376]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  461.671310]  ? kasan_check_read+0x11/0x20
[  461.675461]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  461.680738]  ? rcu_softirq_qs+0x20/0x20
[  461.684726]  ? filemap_map_pages+0xd92/0x1a20
[  461.689236]  ? find_get_entries_tag+0x1400/0x1400
[  461.694109]  ? debug_object_destroy+0x2b0/0x2b0
[  461.698783]  ? lock_pi_update_atomic+0x150/0x150
[  461.703537]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  461.709093]  ? lock_acquire+0x1ed/0x520
[  461.713074]  ? ext4_filemap_fault+0x7a/0xad
[  461.717416]  ? lock_release+0xa00/0xa00
[  461.721391]  ? perf_trace_sched_process_exec+0x860/0x860
[  461.726845]  ? print_usage_bug+0xc0/0xc0
[  461.730911]  ? print_usage_bug+0xc0/0xc0
[  461.734984]  ? down_read+0x8d/0x120
[  461.738609]  ? ext4_filemap_fault+0x7a/0xad
[  461.742932]  ? __down_interruptible+0x700/0x700
[  461.747611]  ext4_filemap_fault+0x82/0xad
[  461.751764]  __do_fault+0x100/0x6b0
[  461.755404]  ? find_held_lock+0x36/0x1c0
[  461.759474]  ? pmd_devmap_trans_unstable+0x220/0x220
[  461.764580]  ? mark_held_locks+0x130/0x130
[  461.768815]  ? mark_held_locks+0x130/0x130
[  461.773054]  ? debug_smp_processor_id+0x1c/0x20
[  461.777730]  ? perf_trace_lock+0x14d/0x7a0
[  461.781975]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  461.787521]  __handle_mm_fault+0x3ea0/0x5be0
[  461.791958]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  461.796802]  ? lock_is_held_type+0x210/0x210
[  461.801217]  ? __switch_to_asm+0x34/0x70
[  461.805289]  ? __switch_to_asm+0x34/0x70
[  461.809390]  ? zap_class+0x640/0x640
[  461.813119]  ? zap_class+0x640/0x640
[  461.816859]  ? __x64_sys_futex+0x53e/0x6a0
[  461.821105]  ? find_held_lock+0x36/0x1c0
[  461.825178]  ? handle_mm_fault+0x42a/0xc70
[  461.829414]  ? lock_downgrade+0x900/0x900
[  461.833568]  ? check_preemption_disabled+0x48/0x280
[  461.838601]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  461.843531]  ? kasan_check_read+0x11/0x20
[  461.847677]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  461.852953]  ? rcu_softirq_qs+0x20/0x20
[  461.856927]  ? trace_hardirqs_off_caller+0x310/0x310
[  461.862035]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  461.867572]  ? check_preemption_disabled+0x48/0x280
[  461.872595]  handle_mm_fault+0x54f/0xc70
[  461.876659]  ? __handle_mm_fault+0x5be0/0x5be0
[  461.881247]  ? find_vma+0x34/0x190
[  461.884810]  __do_page_fault+0x5e8/0xe60
[  461.888870]  ? trace_hardirqs_off+0xb8/0x310
[  461.893290]  do_page_fault+0xf2/0x7e0
[  461.897100]  ? vmalloc_sync_all+0x30/0x30
[  461.901253]  ? error_entry+0x70/0xd0
[  461.904983]  ? trace_hardirqs_off_caller+0xbb/0x310
[  461.909998]  ? trace_hardirqs_on_caller+0xc0/0x310
[  461.914926]  ? syscall_return_slowpath+0x5e0/0x5e0
[  461.919888]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  461.924732]  ? trace_hardirqs_on_caller+0x310/0x310
[  461.929747]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  461.935229]  ? prepare_exit_to_usermode+0x291/0x3b0
[  461.940245]  ? page_fault+0x8/0x30
[  461.943808]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  461.948689]  ? page_fault+0x8/0x30
[  461.952230]  page_fault+0x1e/0x30
[  461.955682] RIP: 0033:0x45ddf3
[  461.958888] Code: Bad RIP value.
[  461.962262] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  461.967624] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  461.974892] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  461.982157] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  461.989420] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  461.996695] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  462.003983] warn_alloc_show_mem: 1 callbacks suppressed
[  462.003994] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  462.003996] Mem-Info:
[  462.004041] active_anon:45985 inactive_anon:296 isolated_anon:0
[  462.004041]  active_file:15 inactive_file:8 isolated_file:0
[  462.004041]  unevictable:0 dirty:0 writeback:0 unstable:0
[  462.004041]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  462.004041]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  462.004041]  free:13771 free_pcp:249 free_cma:0
[  462.009375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  462.009382] Call Trace:
[  462.016748] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  462.019148]  <IRQ>
[  462.051952] 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
[  462.061311]  dump_stack+0x244/0x39d
[  462.063862] lowmem_reserve[]: 0 2818 6321 6321
[  462.091551]  ? dump_stack_print_info.cold.1+0x20/0x20
[  462.093666] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  462.119800]  warn_alloc.cold.116+0xb7/0x1bd
[  462.123396] lowmem_reserve[]: 0 0 3503 3503
[  462.127980]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  462.133145] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  462.160657]  ? lock_downgrade+0x900/0x900
[  462.164944] lowmem_reserve[]: 0 0 0 0
[  462.169275]  ? trace_hardirqs_off+0xb8/0x310
[  462.174094] 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
[  462.203070]  ? trace_hardirqs_off+0xb8/0x310
[  462.207196] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  462.210990]  ? noop_count+0x40/0x40
[  462.215369] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  462.228889]  __alloc_pages_slowpath+0x2651/0x2de0
[  462.233292] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  462.248380]  ? check_usage+0x1aa/0x790
[  462.251970] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  462.267395]  ? warn_alloc+0x120/0x120
[  462.272208] 376 total pagecache pages
[  462.281037]  ? warn_alloc+0x120/0x120
[  462.284907] 0 pages in swap cache
[  462.293497]  ? __bfs+0xb0/0x780
[  462.297280] Swap cache stats: add 0, delete 0, find 0/0
[  462.301069]  ? print_bfs_bug+0x80/0x80
[  462.304856] Free swap  = 0kB
[  462.308302]  ? warn_alloc+0x120/0x120
[  462.311699] Total swap = 0kB
[  462.311707] 1965979 pages RAM
[  462.317066]  ? print_usage_bug+0xc0/0xc0
[  462.320936] 0 pages HighMem/MovableOnly
[  462.323959]  ? mark_held_locks+0x130/0x130
[  462.327727] 342854 pages reserved
[  462.330740]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  462.333817] 0 pages cma reserved
[  462.337894]  ? should_fail+0x22d/0xd01
[  462.341900] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  462.346068]  ? trace_event_raw_event_lock_acquire+0x440/0x440
[  462.349607] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  462.355055]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  462.358399] syz-fuzzer cpuset=/ mems_allowed=0
[  462.362283]  ? __lock_acquire+0x62f/0x4c20
[  462.399410]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  462.404516]  ? should_fail+0x22d/0xd01
[  462.408416]  ? mark_held_locks+0x130/0x130
[  462.412656]  ? mark_held_locks+0x130/0x130
[  462.416947]  ? zap_class+0x640/0x640
[  462.420666]  ? zap_class+0x640/0x640
[  462.424385]  ? trace_event_raw_event_lock_acquire+0x440/0x440
[  462.430276]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  462.435816]  ? check_preemption_disabled+0x48/0x280
[  462.440863]  ? __lock_is_held+0xb5/0x140
[  462.444957]  __alloc_pages_nodemask+0xad8/0xea0
[  462.449633]  ? zap_class+0x640/0x640
[  462.453355]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  462.458387]  ? find_held_lock+0x36/0x1c0
[  462.462469]  ? ____cache_alloc_node+0x1c7/0x1e0
[  462.467145]  ? lock_downgrade+0x900/0x900
[  462.471303]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  462.476847]  cache_grow_begin+0xa5/0x8c0
[  462.480910]  ? do_raw_spin_unlock+0xa7/0x330
[  462.485331]  fallback_alloc+0x204/0x2e0
[  462.489317]  ____cache_alloc_node+0x1c7/0x1e0
[  462.493822]  kmem_cache_alloc_node+0xe3/0x730
[  462.498322]  ? mark_held_locks+0xc7/0x130
[  462.502570]  __alloc_skb+0x119/0x770
[  462.506296]  ? netdev_alloc_frag+0x1f0/0x1f0
[  462.510707]  ? do_raw_spin_trylock+0x270/0x270
[  462.515293]  ? kmem_cache_alloc_trace+0x353/0x750
[  462.520142]  ? queue_work_on+0x12c/0x1e0
[  462.524211]  ? switchdev_port_obj_del+0xe3/0x450
[  462.528974]  ? switchdev_trans_item_enqueue+0x260/0x260
[  462.534345]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  462.539382]  __br_mdb_notify+0x4ff/0x15d0
[  462.543533]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  462.548645]  ? __br_mdb_add+0x7f0/0x7f0
[  462.552639]  ? mark_held_locks+0x130/0x130
[  462.556894]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  462.562005]  ? debug_object_assert_init+0x368/0x4b0
[  462.567024]  ? trace_hardirqs_off_caller+0x310/0x310
[  462.572133]  ? debug_object_init_on_stack+0x20/0x20
[  462.577151]  ? zap_class+0x640/0x640
[  462.580883]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  462.586431]  br_mdb_notify+0x310/0x410
[  462.590330]  ? br_mdb_dump+0x27b0/0x27b0
[  462.594408]  br_multicast_del_pg+0x3df/0x790
[  462.598838]  ? br_mdb_ip_get+0x940/0x940
[  462.602914]  ? rwlock_bug.part.2+0x90/0x90
[  462.607188]  ? __lock_is_held+0xb5/0x140
[  462.611261]  br_multicast_port_group_expired+0x189/0x1e0
[  462.616714]  call_timer_fn+0x272/0x920
[  462.620601]  ? br_multicast_del_pg+0x790/0x790
[  462.625181]  ? process_timeout+0x40/0x40
[  462.629248]  ? __run_timers+0x7da/0xc70
[  462.633234]  ? _raw_spin_unlock_irq+0x27/0x80
[  462.637728]  ? _raw_spin_unlock_irq+0x27/0x80
[  462.642220]  ? br_multicast_del_pg+0x790/0x790
[  462.646804]  ? lockdep_hardirqs_on+0x296/0x5b0
[  462.651391]  ? trace_hardirqs_on+0xbd/0x310
[  462.655716]  ? kasan_check_read+0x11/0x20
[  462.659892]  ? __run_timers+0x7da/0xc70
[  462.663872]  ? trace_hardirqs_off_caller+0x310/0x310
[  462.668981]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  462.673226]  ? br_multicast_del_pg+0x790/0x790
[  462.677805]  __run_timers+0x7e5/0xc70
[  462.681620]  ? timer_fixup_init+0x70/0x70
[  462.685791]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  462.690812]  ? zap_class+0x640/0x640
[  462.694534]  ? enqueue_hrtimer+0x1a5/0x560
[  462.698776]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  462.703981]  ? find_held_lock+0x36/0x1c0
[  462.708051]  ? zap_class+0x640/0x640
[  462.711778]  ? pvclock_read_flags+0x160/0x160
[  462.716279]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  462.721875]  ? check_preemption_disabled+0x48/0x280
[  462.726904]  ? __lock_is_held+0xb5/0x140
[  462.730975]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  462.736517]  ? check_preemption_disabled+0x48/0x280
[  462.741539]  run_timer_softirq+0x52/0xb0
[  462.745603]  ? rcu_read_lock_sched_held+0x14f/0x180
[  462.750634]  __do_softirq+0x308/0xb7e
[  462.754440]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  462.758933]  ? lock_downgrade+0x900/0x900
[  462.763104]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  462.768219]  ? pvclock_read_flags+0x160/0x160
[  462.772719]  ? lapic_next_event+0x5a/0x90
[  462.776902]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  462.782444]  ? kvm_clock_read+0x18/0x30
[  462.786420]  ? kvm_sched_clock_read+0x9/0x20
[  462.790830]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  462.796374]  ? check_preemption_disabled+0x48/0x280
[  462.801406]  irq_exit+0x17f/0x1c0
[  462.804896]  smp_apic_timer_interrupt+0x1cb/0x760
[  462.809739]  ? smp_reschedule_interrupt+0x109/0x650
[  462.814759]  ? smp_call_function_single_interrupt+0x650/0x650
[  462.820645]  ? interrupt_entry+0xb5/0xc0
[  462.824712]  ? trace_hardirqs_off_caller+0xbb/0x310
[  462.829726]  ? trace_hardirqs_off_caller+0xbb/0x310
[  462.834760]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  462.839602]  ? trace_hardirqs_on_caller+0x310/0x310
[  462.844622]  ? trace_hardirqs_on_caller+0x310/0x310
[  462.849641]  ? task_prio+0x50/0x50
[  462.853186]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  462.858725]  ? check_preemption_disabled+0x48/0x280
[  462.863748]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  462.868605]  apic_timer_interrupt+0xf/0x20
[  462.872838]  </IRQ>
[  462.875088] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  462.880024] 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 42 f3
[  462.898929] RSP: 0018:ffff888195497718 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  462.906642] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  462.913908] RDX: 0000000000000000 RSI: ffff8881d2488b40 RDI: 0000000000000282
[  462.921176] RBP: ffff888195497780 R08: ffff8881d24882c0 R09: 0000000000000000
[  462.928443] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  462.935709] R13: ffff8881d9beec00 R14: ffff8881d9beec00 R15: 0000000000480020
[  462.943026]  skb_clone+0x1bb/0x500
[  462.946576]  ? skb_split+0x11e0/0x11e0
[  462.950468]  ? check_preemption_disabled+0x48/0x280
[  462.955490]  ? __this_cpu_preempt_check+0x1c/0x20
[  462.960338]  ? __bpf_redirect+0x55b/0xb60
[  462.964489]  ? __switch_to_asm+0x34/0x70
[  462.968548]  ? __switch_to_asm+0x40/0x70
[  462.972614]  bpf_clone_redirect+0xb9/0x490
[  462.976858]  bpf_prog_3d1649e183dc2cc1+0xaf9/0x1000
[  462.981883]  ? __sched_text_start+0x8/0x8
[  462.986049]  ? find_held_lock+0x36/0x1c0
[  462.990130]  ? lock_acquire+0x1ed/0x520
[  462.994113]  ? bpf_test_run+0x3cb/0x780
[  462.998099]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  463.003641]  ? check_preemption_disabled+0x48/0x280
[  463.008670]  ? kasan_check_read+0x11/0x20
[  463.012819]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  463.018106]  ? rcu_softirq_qs+0x20/0x20
[  463.022092]  ? preempt_schedule+0x4d/0x60
[  463.026248]  ? ___preempt_schedule+0x16/0x18
[  463.030667]  ? bpf_test_run+0x25d/0x780
[  463.034658]  ? netlink_diag_dump+0x2a0/0x2a0
[  463.039071]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  463.044618]  ? bpf_test_init.isra.10+0x70/0x100
[  463.049292]  ? bpf_prog_test_run_skb+0x73b/0xd10
[  463.054071]  ? bpf_test_finish.isra.9+0x260/0x260
[  463.058923]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  463.064467]  ? fput+0x130/0x1a0
[  463.067754]  ? __bpf_prog_get+0x9b/0x290
[  463.071824]  ? bpf_test_finish.isra.9+0x260/0x260
[  463.076667]  ? bpf_prog_test_run+0x130/0x1a0
[  463.081077]  ? __x64_sys_bpf+0x3db/0x520
[  463.085152]  ? bpf_prog_get+0x20/0x20
[  463.088980]  ? do_syscall_64+0x1b9/0x820
[  463.093044]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  463.098410]  ? syscall_return_slowpath+0x5e0/0x5e0
[  463.103347]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  463.108194]  ? trace_hardirqs_on_caller+0x310/0x310
[  463.113229]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  463.118277]  ? prepare_exit_to_usermode+0x291/0x3b0
[  463.123300]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  463.128156]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  463.133547] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #167
[  463.134344] syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  463.140576] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  463.151048] syz-executor0 cpuset=syz0 mems_allowed=0
[  463.160388] Call Trace:
[  463.168049]  <IRQ>
[  463.170216]  dump_stack+0x244/0x39d
[  463.173850]  ? dump_stack_print_info.cold.1+0x20/0x20
[  463.179508]  warn_alloc.cold.116+0xb7/0x1bd
[  463.183837]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  463.188683]  ? lock_downgrade+0x900/0x900
[  463.192839]  ? trace_hardirqs_off+0xb8/0x310
[  463.197257]  ? trace_hardirqs_off+0xb8/0x310
[  463.201676]  __alloc_pages_slowpath+0x2651/0x2de0
[  463.206552]  ? warn_alloc+0x120/0x120
[  463.210358]  ? print_usage_bug+0xc0/0xc0
[  463.214420]  ? warn_alloc+0x120/0x120
[  463.218234]  ? warn_alloc+0x120/0x120
[  463.222043]  ? print_usage_bug+0xc0/0xc0
[  463.226111]  ? kvm_clock_read+0x18/0x30
[  463.230110]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  463.235129]  ? print_usage_bug+0xc0/0xc0
[  463.239194]  ? __lock_acquire+0x62f/0x4c20
[  463.243449]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  463.248989]  ? should_fail+0x22d/0xd01
[  463.252892]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  463.258177]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  463.263283]  ? __lock_acquire+0x62f/0x4c20
[  463.267540]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  463.272644]  ? __lock_acquire+0x62f/0x4c20
[  463.276877]  ? should_fail+0x22d/0xd01
[  463.280762]  ? rcu_irq_exit+0x1a2/0x390
[  463.284749]  ? mark_held_locks+0x130/0x130
[  463.288990]  ? mark_held_locks+0x130/0x130
[  463.293265]  ? mark_held_locks+0xc7/0x130
[  463.297417]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  463.302436]  ? zap_class+0x640/0x640
[  463.306159]  ? print_usage_bug+0xc0/0xc0
[  463.310226]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  463.315768]  ? check_preemption_disabled+0x48/0x280
[  463.320798]  ? __lock_is_held+0xb5/0x140
[  463.324867]  __alloc_pages_nodemask+0xad8/0xea0
[  463.329536]  ? zap_class+0x640/0x640
[  463.333257]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  463.338286]  ? find_held_lock+0x36/0x1c0
[  463.342357]  ? ____cache_alloc_node+0x1c7/0x1e0
[  463.347031]  ? lock_downgrade+0x900/0x900
[  463.351190]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  463.356736]  cache_grow_begin+0xa5/0x8c0
[  463.360796]  ? do_raw_spin_unlock+0xa7/0x330
[  463.365213]  fallback_alloc+0x204/0x2e0
[  463.369198]  ____cache_alloc_node+0x1c7/0x1e0
[  463.373702]  kmem_cache_alloc_node+0xe3/0x730
[  463.378202]  ? ipv6_get_ifaddr+0x42e/0x620
[  463.382454]  __alloc_skb+0x119/0x770
[  463.386168]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  463.391455]  ? netdev_alloc_frag+0x1f0/0x1f0
[  463.395870]  ? lock_downgrade+0x900/0x900
[  463.400027]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  463.405565]  ? refcount_sub_and_test_checked+0x203/0x310
[  463.411022]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  463.416481]  ? addrconf_rs_timer+0x690/0x690
[  463.420900]  ndisc_alloc_skb+0x144/0x340
[  463.424969]  ndisc_send_rs+0x331/0x6e0
[  463.428864]  addrconf_rs_timer+0x314/0x690
[  463.433119]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  463.437365]  call_timer_fn+0x272/0x920
[  463.441250]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  463.445484]  ? process_timeout+0x40/0x40
[  463.449556]  ? mark_held_locks+0xc7/0x130
[  463.453715]  ? _raw_spin_unlock_irq+0x27/0x80
[  463.458210]  ? _raw_spin_unlock_irq+0x27/0x80
[  463.462704]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  463.466943]  ? lockdep_hardirqs_on+0x296/0x5b0
[  463.471531]  ? trace_hardirqs_on+0xbd/0x310
[  463.475851]  ? kasan_check_read+0x11/0x20
[  463.480003]  ? __run_timers+0x7da/0xc70
[  463.483983]  ? trace_hardirqs_off_caller+0x310/0x310
[  463.489101]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  463.493348]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  463.497585]  __run_timers+0x7e5/0xc70
[  463.501402]  ? timer_fixup_init+0x70/0x70
[  463.505554]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  463.510572]  ? zap_class+0x640/0x640
[  463.514297]  ? print_usage_bug+0xc0/0xc0
[  463.518363]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  463.523567]  ? find_held_lock+0x36/0x1c0
[  463.527638]  ? zap_class+0x640/0x640
[  463.531361]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  463.536906]  ? check_preemption_disabled+0x48/0x280
[  463.541935]  ? __lock_is_held+0xb5/0x140
[  463.545999]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  463.551540]  ? check_preemption_disabled+0x48/0x280
[  463.556564]  run_timer_softirq+0x52/0xb0
[  463.560631]  ? rcu_read_lock_sched_held+0x14f/0x180
[  463.565650]  __do_softirq+0x308/0xb7e
[  463.569460]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  463.573955]  ? lock_downgrade+0x900/0x900
[  463.578119]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  463.583231]  ? pvclock_read_flags+0x160/0x160
[  463.587732]  ? lapic_next_event+0x5a/0x90
[  463.591886]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  463.597431]  ? kvm_clock_read+0x18/0x30
[  463.601409]  ? kvm_sched_clock_read+0x9/0x20
[  463.605821]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  463.611360]  ? check_preemption_disabled+0x48/0x280
[  463.616398]  irq_exit+0x17f/0x1c0
[  463.619854]  smp_apic_timer_interrupt+0x1cb/0x760
[  463.624699]  ? smp_reschedule_interrupt+0x109/0x650
[  463.629721]  ? smp_call_function_single_interrupt+0x650/0x650
[  463.635605]  ? interrupt_entry+0xb5/0xc0
[  463.639668]  ? trace_hardirqs_off_caller+0xbb/0x310
[  463.644688]  ? trace_hardirqs_off_caller+0xbb/0x310
[  463.649706]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  463.654549]  ? trace_hardirqs_on_caller+0x310/0x310
[  463.659566]  ? trace_hardirqs_on_caller+0x310/0x310
[  463.664595]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  463.669452]  apic_timer_interrupt+0xf/0x20
[  463.673687]  </IRQ>
[  463.675927] RIP: 0010:dump_stack+0x358/0x39d
[  463.680335] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 36 ed f9 48 83 3d f9 27 7c 01 00 0f 84 63 fe ff ff e8 6e b7 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b7 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  463.699234] RSP: 0000:ffff8881bb40e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  463.706944] RAX: ffff8881c2208180 RBX: 1ffffffff12a3f6e RCX: 1ffff1103844114e
[  463.714212] RDX: 0000000000000000 RSI: ffffffff87d5d382 RDI: 0000000000000293
[  463.721478] RBP: ffff8881bb40e290 R08: ffff8881c2208a70 R09: 0000000000000006
[  463.728744] R10: 0000000000000000 R11: ffff8881c2208180 R12: 1ffff11037681c45
[  463.736011] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  463.743312]  ? dump_stack+0x34f/0x39d
[  463.747129]  ? dump_stack_print_info.cold.1+0x20/0x20
[  463.752326]  ? mark_held_locks+0x130/0x130
[  463.756558]  ? mark_held_locks+0x130/0x130
[  463.760797]  dump_header+0x27b/0xf72
[  463.764523]  ? pagefault_out_of_memory+0x197/0x197
[  463.769470]  ? __lock_acquire+0x62f/0x4c20
[  463.773712]  ? percpu_ref_get_many+0x240/0x240
[  463.778296]  ? print_usage_bug+0xc0/0xc0
[  463.782365]  ? zap_class+0x640/0x640
[  463.786092]  ? print_usage_bug+0xc0/0xc0
[  463.790156]  ? print_usage_bug+0xc0/0xc0
[  463.794221]  ? zap_class+0x640/0x640
[  463.797955]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  463.803504]  ? find_held_lock+0x36/0x1c0
[  463.807576]  ? mark_held_locks+0xc7/0x130
[  463.811729]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  463.816830]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  463.821938]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  463.826524]  ? trace_hardirqs_on+0xbd/0x310
[  463.830849]  ? kasan_check_read+0x11/0x20
[  463.835095]  ? ___ratelimit+0x3b4/0x672
[  463.839076]  ? trace_hardirqs_off_caller+0x310/0x310
[  463.844190]  ? trace_hardirqs_on+0x310/0x310
[  463.848604]  ? lock_downgrade+0x900/0x900
[  463.852762]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  463.857865]  ? ___ratelimit+0x3b9/0x672
[  463.861862]  ? idr_get_free+0xf70/0xf70
[  463.865843]  ? find_held_lock+0x36/0x1c0
[  463.869920]  oom_kill_process.cold.27+0x10/0x903
[  463.874680]  ? zap_class+0x640/0x640
[  463.878396]  ? check_preemption_disabled+0x48/0x280
[  463.883416]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  463.888351]  ? kasan_check_read+0x11/0x20
[  463.892502]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  463.897783]  ? oom_evaluate_task+0x540/0x540
[  463.902201]  ? find_held_lock+0x36/0x1c0
[  463.906275]  ? out_of_memory+0x974/0x1430
[  463.910428]  ? lock_downgrade+0x900/0x900
[  463.914579]  ? check_preemption_disabled+0x48/0x280
[  463.919596]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  463.924527]  ? kasan_check_read+0x11/0x20
[  463.928672]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  463.933953]  ? rcu_softirq_qs+0x20/0x20
[  463.937964]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  463.943503]  ? oom_evaluate_task+0x302/0x540
[  463.947915]  out_of_memory+0xa84/0x1430
[  463.951910]  ? oom_killer_disable+0x3a0/0x3a0
[  463.956404]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  463.961341]  ? __ww_mutex_check_waiters+0x160/0x160
[  463.966369]  __alloc_pages_slowpath+0x232c/0x2de0
[  463.971242]  ? warn_alloc+0x120/0x120
[  463.975047]  ? mark_held_locks+0x130/0x130
[  463.979311]  ? find_get_entry+0xaae/0x1120
[  463.983556]  ? filemap_map_pages+0x1a20/0x1a20
[  463.988145]  ? zap_class+0x640/0x640
[  463.991866]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  463.997425]  ? check_preemption_disabled+0x48/0x280
[  464.002454]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  464.007994]  ? should_fail+0x22d/0xd01
[  464.011887]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  464.016993]  ? zap_class+0x640/0x640
[  464.020734]  ? __lock_is_held+0xb5/0x140
[  464.024809]  ? mark_held_locks+0x130/0x130
[  464.029047]  ? lock_release+0xa00/0xa00
[  464.033029]  ? perf_trace_sched_process_exec+0x860/0x860
[  464.038480]  ? xa_load+0x2ba/0x460
[  464.042021]  ? lock_downgrade+0x900/0x900
[  464.046173]  ? __might_sleep+0x95/0x190
[  464.050154]  __alloc_pages_nodemask+0xad8/0xea0
[  464.054830]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  464.059857]  ? __page_cache_alloc+0x191/0x5c0
[  464.064349]  ? xa_load+0x2e1/0x460
[  464.067889]  ? xa_clear_mark+0x40/0x40
[  464.071779]  ? zap_class+0x640/0x640
[  464.075505]  ? zap_class+0x640/0x640
[  464.079222]  ? zap_class+0x640/0x640
[  464.082935]  ? __do_page_cache_readahead+0x663/0x810
[  464.088048]  ? find_held_lock+0x36/0x1c0
[  464.092130]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  464.097692]  alloc_pages_current+0x173/0x350
[  464.102114]  __page_cache_alloc+0x38c/0x5c0
[  464.106433]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  464.111367]  ? kasan_check_read+0x11/0x20
[  464.115517]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  464.120798]  ? generic_perform_write+0x6a0/0x6a0
[  464.125556]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  464.131127]  ? check_preemption_disabled+0x48/0x280
[  464.136153]  filemap_fault+0x1595/0x25f0
[  464.140233]  ? __lock_page_or_retry+0xa00/0xa00
[  464.144906]  ? mark_held_locks+0x130/0x130
[  464.149152]  ? filemap_map_pages+0xd6b/0x1a20
[  464.153650]  ? lock_downgrade+0x900/0x900
[  464.157798]  ? check_preemption_disabled+0x48/0x280
[  464.162829]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  464.167762]  ? kasan_check_read+0x11/0x20
[  464.171909]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  464.177203]  ? rcu_softirq_qs+0x20/0x20
[  464.181192]  ? filemap_map_pages+0xd92/0x1a20
[  464.185705]  ? find_get_entries_tag+0x1400/0x1400
[  464.190552]  ? debug_object_destroy+0x2b0/0x2b0
[  464.195229]  ? lock_pi_update_atomic+0x150/0x150
[  464.200001]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  464.205557]  ? lock_acquire+0x1ed/0x520
[  464.209550]  ? ext4_filemap_fault+0x7a/0xad
[  464.213875]  ? lock_release+0xa00/0xa00
[  464.217849]  ? perf_trace_sched_process_exec+0x860/0x860
[  464.223301]  ? print_usage_bug+0xc0/0xc0
[  464.227367]  ? print_usage_bug+0xc0/0xc0
[  464.231436]  ? down_read+0x8d/0x120
[  464.235119]  ? ext4_filemap_fault+0x7a/0xad
[  464.239466]  ? __down_interruptible+0x700/0x700
[  464.244149]  ext4_filemap_fault+0x82/0xad
[  464.249692]  __do_fault+0x100/0x6b0
[  464.253333]  ? find_held_lock+0x36/0x1c0
[  464.257397]  ? pmd_devmap_trans_unstable+0x220/0x220
[  464.262508]  ? mark_held_locks+0x130/0x130
[  464.266749]  ? mark_held_locks+0x130/0x130
[  464.270989]  ? debug_smp_processor_id+0x1c/0x20
[  464.275658]  ? perf_trace_lock+0x14d/0x7a0
[  464.279899]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  464.285508]  __handle_mm_fault+0x3ea0/0x5be0
[  464.289967]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  464.294810]  ? lock_is_held_type+0x210/0x210
[  464.299227]  ? __switch_to_asm+0x34/0x70
[  464.303291]  ? __switch_to_asm+0x34/0x70
[  464.307373]  ? zap_class+0x640/0x640
[  464.311274]  ? zap_class+0x640/0x640
[  464.314990]  ? __x64_sys_futex+0x53e/0x6a0
[  464.319229]  ? find_held_lock+0x36/0x1c0
[  464.323299]  ? handle_mm_fault+0x42a/0xc70
[  464.327533]  ? lock_downgrade+0x900/0x900
[  464.331681]  ? check_preemption_disabled+0x48/0x280
[  464.336725]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  464.341683]  ? kasan_check_read+0x11/0x20
[  464.345836]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  464.351116]  ? rcu_softirq_qs+0x20/0x20
[  464.355110]  ? trace_hardirqs_off_caller+0x310/0x310
[  464.360220]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  464.365760]  ? check_preemption_disabled+0x48/0x280
[  464.370788]  handle_mm_fault+0x54f/0xc70
[  464.374858]  ? __handle_mm_fault+0x5be0/0x5be0
[  464.379452]  ? find_vma+0x34/0x190
[  464.382998]  __do_page_fault+0x5e8/0xe60
[  464.387063]  ? trace_hardirqs_off+0xb8/0x310
[  464.391493]  do_page_fault+0xf2/0x7e0
[  464.395297]  ? vmalloc_sync_all+0x30/0x30
[  464.399451]  ? error_entry+0x70/0xd0
[  464.403172]  ? trace_hardirqs_off_caller+0xbb/0x310
[  464.408190]  ? trace_hardirqs_on_caller+0xc0/0x310
[  464.413122]  ? syscall_return_slowpath+0x5e0/0x5e0
[  464.418055]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  464.422912]  ? trace_hardirqs_on_caller+0x310/0x310
[  464.427926]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  464.433378]  ? prepare_exit_to_usermode+0x291/0x3b0
[  464.438399]  ? page_fault+0x8/0x30
[  464.441947]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  464.446792]  ? page_fault+0x8/0x30
[  464.450334]  page_fault+0x1e/0x30
[  464.453799] RIP: 0033:0x45ddf3
[  464.457002] Code: Bad RIP value.
[  464.460361] RSP: 002b:000000c42001fea0 EFLAGS: 00010202
[  464.465723] RAX: ffffffffffffff92 RBX: 0000000028898d51 RCX: 000000000045ddf3
[  464.472989] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014f1120
[  464.480255] RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
[  464.487525] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  464.494789] R13: 000000c42841fe60 R14: 0000000000000001 R15: 0000000000000000
[  464.502131] warn_alloc_show_mem: 1 callbacks suppressed
[  464.502144] CPU: 1 PID: 16798 Comm: syz-executor0 Not tainted 4.20.0-rc4+ #167
[  464.502145] Mem-Info:
[  464.502207] active_anon:45985 inactive_anon:296 isolated_anon:0
[  464.502207]  active_file:15 inactive_file:8 isolated_file:0
[  464.502207]  unevictable:0 dirty:0 writeback:0 unstable:0
[  464.502207]  slab_reclaimable:9236 slab_unreclaimable:1461135
[  464.502207]  mapped:40979 shmem:353 pagetables:587 bounce:0
[  464.502207]  free:13771 free_pcp:249 free_cma:0
[  464.507566] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  464.514934] Node 0 active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:1412kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  464.517335] Call Trace:
[  464.550138] 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
[  464.559489]  <IRQ>
[  464.587145] lowmem_reserve[]: 0 2818 6321 6321
[  464.589751]  dump_stack+0x244/0x39d
[  464.615842] Node 0 DMA32 free:25176kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:404kB local_pcp:156kB free_cma:0kB
[  464.618002]  ? dump_stack_print_info.cold.1+0x20/0x20
[  464.622537] lowmem_reserve[]: 0 0 3503 3503
[  464.626176]  warn_alloc.cold.116+0xb7/0x1bd
[  464.653648] Node 0 Normal free:14000kB min:37364kB low:46704kB high:56044kB active_anon:183940kB inactive_anon:1184kB active_file:60kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6880kB pagetables:2348kB bounce:0kB free_pcp:592kB local_pcp:388kB free_cma:0kB
[  464.658839]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  464.663125] lowmem_reserve[]: 0 0 0 0
[  464.667463]  ? lock_downgrade+0x900/0x900
[  464.696421] 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
[  464.701288]  ? trace_hardirqs_off+0xb8/0x310
[  464.705054] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 4*32kB (M) 2*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25176kB
[  464.709234]  ? trace_hardirqs_off+0xb8/0x310
[  464.722731] Node 0 Normal: 794*4kB (MEH) 441*8kB (UMEH) 176*16kB (UME) 69*32kB (UMEH) 18*64kB (UM) 1*128kB (U) 2*256kB (U) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14032kB
[  464.727161]  __alloc_pages_slowpath+0x2651/0x2de0
[  464.742240] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  464.746684]  ? warn_alloc+0x120/0x120
[  464.762068] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  464.762077] 376 total pagecache pages
[  464.766924]  ? warn_alloc+0x120/0x120
[  464.775739] 0 pages in swap cache
[  464.779529]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  464.788073] Swap cache stats: add 0, delete 0, find 0/0
[  464.788104] Free swap  = 0kB
[  464.791904]  ? warn_alloc+0x120/0x120
[  464.795672] Total swap = 0kB
[  464.795680] 1965979 pages RAM
[  464.799136]  ? print_usage_bug+0xc0/0xc0
[  464.804129] 0 pages HighMem/MovableOnly
[  464.809484]  ? print_usage_bug+0xc0/0xc0
[  464.812472] 342854 pages reserved
[  464.812480] 0 pages cma reserved
[  464.816274]  ? check_usage+0x1aa/0x790
[  464.819349] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  464.822387]  ? check_usage+0x1aa/0x790
[  464.826487] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  464.830400]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  464.834435] syz-fuzzer cpuset=/ mems_allowed=0
[  464.837883]  ? should_fail+0x22d/0xd01
[  464.879674]  ? check_usage_forwards+0x3d0/0x3d0
[  464.884354]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  464.889500]  ? __lock_acquire+0x62f/0x4c20
[  464.893755]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  464.898887]  ? should_fail+0x22d/0xd01
[  464.902786]  ? mark_held_locks+0x130/0x130
[  464.907041]  ? mark_held_locks+0x130/0x130
[  464.911274]  ? print_usage_bug+0xc0/0xc0
[  464.915343]  ? find_held_lock+0x36/0x1c0
[  464.919409]  ? zap_class+0x640/0x640
[  464.923147]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  464.928686]  ? check_preemption_disabled+0x48/0x280
[  464.933711]  ? __lock_is_held+0xb5/0x140
[  464.937784]  __alloc_pages_nodemask+0xad8/0xea0
[  464.942454]  ? zap_class+0x640/0x640
[  464.946181]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  464.951213]  ? find_held_lock+0x36/0x1c0
[  464.955291]  ? ____cache_alloc_node+0x1c7/0x1e0
[  464.959970]  ? lock_downgrade+0x900/0x900
[  464.964130]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  464.969676]  cache_grow_begin+0xa5/0x8c0
[  464.973741]  ? do_raw_spin_unlock+0xa7/0x330
[  464.978161]  fallback_alloc+0x204/0x2e0
[  464.982143]  ____cache_alloc_node+0x1c7/0x1e0
[  464.986648]  kmem_cache_alloc_node+0xe3/0x730
[  464.991170]  ? mark_held_locks+0xc7/0x130
[  464.995326]  __alloc_skb+0x119/0x770
[  464.999043]  ? netdev_alloc_frag+0x1f0/0x1f0
[  465.003470]  ? do_raw_spin_trylock+0x270/0x270
[  465.008056]  ? kmem_cache_alloc_trace+0x353/0x750
[  465.012911]  ? queue_work_on+0x12c/0x1e0
[  465.016985]  ? switchdev_port_obj_del+0xe3/0x450
[  465.021746]  ? switchdev_trans_item_enqueue+0x260/0x260
[  465.027147]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  465.032168]  __br_mdb_notify+0x4ff/0x15d0
[  465.036322]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  465.041446]  ? __br_mdb_add+0x7f0/0x7f0
[  465.045452]  ? mark_held_locks+0x130/0x130
[  465.049696]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  465.054805]  ? debug_object_assert_init+0x368/0x4b0
[  465.059828]  ? debug_object_init_on_stack+0x20/0x20
[  465.064841]  ? zap_class+0x640/0x640
[  465.068562]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  465.074112]  br_mdb_notify+0x310/0x410
[  465.078002]  ? br_mdb_dump+0x27b0/0x27b0
[  465.082098]  br_multicast_del_pg+0x3df/0x790
[  465.086519]  ? br_mdb_ip_get+0x940/0x940
[  465.090585]  ? rwlock_bug.part.2+0x90/0x90
[  465.094825]  ? __lock_is_held+0xb5/0x140
[  465.098893]  br_multicast_port_group_expired+0x189/0x1e0
[  465.104346]  call_timer_fn+0x272/0x920
[  465.108232]  ? br_multicast_del_pg+0x790/0x790
[  465.112817]  ? process_timeout+0x40/0x40
[  465.116884]  ? __run_timers+0x7da/0xc70
[  465.120868]  ? _raw_spin_unlock_irq+0x27/0x80
[  465.125362]  ? _raw_spin_unlock_irq+0x27/0x80
[  465.129856]  ? br_multicast_del_pg+0x790/0x790
[  465.134440]  ? lockdep_hardirqs_on+0x296/0x5b0
[  465.139027]  ? trace_hardirqs_on+0xbd/0x310
[  465.143347]  ? kasan_check_read+0x11/0x20
[  465.147499]  ? __run_timers+0x7da/0xc70
[  465.151478]  ? trace_hardirqs_off_caller+0x310/0x310
[  465.156585]  ? br_multicast_del_pg+0x790/0x790
[  465.161174]  ? br_multicast_del_pg+0x790/0x790
[  465.165756]  __run_timers+0x7e5/0xc70