354.997466] ? rcu_softirq_qs+0x20/0x20 [ 355.001472] ? filemap_map_pages+0xd92/0x1a20 [ 355.005985] ? find_get_entries_tag+0x1400/0x1400 [ 355.010836] ? debug_object_destroy+0x2b0/0x2b0 [ 355.015515] ? lock_pi_update_atomic+0x150/0x150 [ 355.020278] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 355.025830] ? lock_acquire+0x1ed/0x520 [ 355.029809] ? ext4_filemap_fault+0x7a/0xad [ 355.034154] ? lock_release+0xa00/0xa00 [ 355.038151] ? perf_trace_sched_process_exec+0x860/0x860 [ 355.043603] ? print_usage_bug+0xc0/0xc0 [ 355.047671] ? print_usage_bug+0xc0/0xc0 [ 355.051763] ? down_read+0x8d/0x120 [ 355.055423] ? ext4_filemap_fault+0x7a/0xad [ 355.059749] ? __down_interruptible+0x700/0x700 [ 355.064436] ext4_filemap_fault+0x82/0xad [ 355.068603] __do_fault+0x100/0x6b0 [ 355.072233] ? find_held_lock+0x36/0x1c0 [ 355.076305] ? pmd_devmap_trans_unstable+0x220/0x220 [ 355.081975] ? mark_held_locks+0x130/0x130 [ 355.086216] ? mark_held_locks+0x130/0x130 [ 355.090462] ? kasan_check_read+0x11/0x20 [ 355.094612] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 355.100174] __handle_mm_fault+0x3ea0/0x5be0 [ 355.104598] ? perf_trace_lock+0x7a0/0x7a0 [ 355.108873] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 355.113756] ? __switch_to_asm+0x34/0x70 [ 355.117850] ? __switch_to_asm+0x34/0x70 [ 355.121926] ? zap_class+0x640/0x640 [ 355.125640] ? zap_class+0x640/0x640 [ 355.129357] ? __x64_sys_futex+0x53e/0x6a0 [ 355.133613] ? find_held_lock+0x36/0x1c0 [ 355.137715] ? handle_mm_fault+0x42a/0xc70 [ 355.141957] ? lock_downgrade+0x900/0x900 [ 355.146117] ? check_preemption_disabled+0x48/0x280 [ 355.151142] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 355.156073] ? kasan_check_read+0x11/0x20 [ 355.160243] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 355.165536] ? rcu_softirq_qs+0x20/0x20 [ 355.169515] ? trace_hardirqs_off_caller+0x310/0x310 [ 355.174626] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 355.180166] ? sync_mm_rss+0x9a/0x1c0 [ 355.183977] handle_mm_fault+0x54f/0xc70 [ 355.188044] ? __handle_mm_fault+0x5be0/0x5be0 [ 355.192631] ? find_vma+0x34/0x190 [ 355.196185] __do_page_fault+0x5e8/0xe60 [ 355.200249] ? trace_hardirqs_off+0xb8/0x310 [ 355.204668] do_page_fault+0xf2/0x7e0 [ 355.208474] ? vmalloc_sync_all+0x30/0x30 [ 355.212625] ? error_entry+0x70/0xd0 [ 355.216342] ? trace_hardirqs_off_caller+0xbb/0x310 [ 355.221357] ? trace_hardirqs_on_caller+0xc0/0x310 [ 355.226288] ? syscall_return_slowpath+0x5e0/0x5e0 [ 355.231218] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 355.236063] ? trace_hardirqs_on_caller+0x310/0x310 [ 355.241080] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 355.246557] ? prepare_exit_to_usermode+0x291/0x3b0 [ 355.251600] ? page_fault+0x8/0x30 [ 355.255150] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 355.259997] ? page_fault+0x8/0x30 [ 355.263543] page_fault+0x1e/0x30 [ 355.267005] RIP: 0033:0x45ddf3 [ 355.270212] Code: Bad RIP value. [ 355.273572] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 355.278934] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 355.286200] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 355.293468] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 355.300739] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 355.308004] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 355.315303] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 355.315309] warn_alloc_show_mem: 1 callbacks suppressed [ 355.315316] Mem-Info: [ 355.322606] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 355.327972] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 355.327972] active_file:17 inactive_file:17 isolated_file:0 [ 355.327972] unevictable:0 dirty:4 writeback:0 unstable:0 [ 355.327972] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 355.327972] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 355.327972] free:13550 free_pcp:124 free_cma:0 [ 355.330344] Call Trace: [ 355.339734] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 355.372774] [ 355.375345] 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 [ 355.403123] dump_stack+0x244/0x39d [ 355.405243] lowmem_reserve[]: 0 2818 6321 6321 [ 355.431397] ? dump_stack_print_info.cold.1+0x20/0x20 [ 355.434992] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 355.439579] warn_alloc.cold.116+0xb7/0x1bd [ 355.444730] lowmem_reserve[]: 0 0 3503 3503 [ 355.472073] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 355.476374] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 355.480698] ? lock_downgrade+0x900/0x900 [ 355.485509] lowmem_reserve[]: 0 0 0 0 [ 355.514433] ? trace_hardirqs_off+0xb8/0x310 [ 355.518568] 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 [ 355.522388] ? trace_hardirqs_off+0xb8/0x310 [ 355.526763] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 355.540295] __alloc_pages_slowpath+0x2651/0x2de0 [ 355.544671] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 355.559468] ? warn_alloc+0x120/0x120 [ 355.564266] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 355.579005] ? print_usage_bug+0xc0/0xc0 [ 355.582780] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 355.591606] ? warn_alloc+0x120/0x120 [ 355.595639] 1360 total pagecache pages [ 355.604214] ? warn_alloc+0x120/0x120 [ 355.608000] 0 pages in swap cache [ 355.611875] ? print_usage_bug+0xc0/0xc0 [ 355.615676] Swap cache stats: add 0, delete 0, find 0/0 [ 355.619135] ? kvm_clock_read+0x18/0x30 [ 355.623169] Free swap = 0kB [ 355.628529] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 355.632476] Total swap = 0kB [ 355.635499] ? print_usage_bug+0xc0/0xc0 [ 355.640487] 1965979 pages RAM [ 355.643504] ? __lock_acquire+0x62f/0x4c20 [ 355.647541] 0 pages HighMem/MovableOnly [ 355.650658] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 355.654859] 342854 pages reserved [ 355.654867] 0 pages cma reserved [ 355.658840] ? should_fail+0x22d/0xd01 [ 355.664456] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 355.667792] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 355.667812] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 355.671276] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 355.675065] ? __lock_acquire+0x62f/0x4c20 [ 355.681531] syz-fuzzer cpuset=/ mems_allowed=0 [ 355.686802] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 355.715992] ? __lock_acquire+0x62f/0x4c20 [ 355.720233] ? should_fail+0x22d/0xd01 [ 355.724127] ? rcu_irq_exit+0x1a2/0x390 [ 355.728123] ? mark_held_locks+0x130/0x130 [ 355.732365] ? mark_held_locks+0x130/0x130 [ 355.736628] ? mark_held_locks+0xc7/0x130 [ 355.740778] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 355.745807] ? zap_class+0x640/0x640 [ 355.749550] ? print_usage_bug+0xc0/0xc0 [ 355.753619] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 355.759165] ? check_preemption_disabled+0x48/0x280 [ 355.764205] ? __lock_is_held+0xb5/0x140 [ 355.768279] __alloc_pages_nodemask+0xad8/0xea0 [ 355.772953] ? zap_class+0x640/0x640 [ 355.776672] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 355.781701] ? find_held_lock+0x36/0x1c0 [ 355.785800] ? ____cache_alloc_node+0x1c7/0x1e0 [ 355.790491] ? lock_downgrade+0x900/0x900 [ 355.794651] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 355.800198] cache_grow_begin+0xa5/0x8c0 [ 355.804269] ? do_raw_spin_unlock+0xa7/0x330 [ 355.808690] fallback_alloc+0x204/0x2e0 [ 355.812675] ____cache_alloc_node+0x1c7/0x1e0 [ 355.817181] kmem_cache_alloc_node+0xe3/0x730 [ 355.821681] ? ipv6_get_ifaddr+0x42e/0x620 [ 355.825931] __alloc_skb+0x119/0x770 [ 355.829646] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 355.834944] ? netdev_alloc_frag+0x1f0/0x1f0 [ 355.839358] ? lock_downgrade+0x900/0x900 [ 355.843531] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 355.849088] ? refcount_sub_and_test_checked+0x203/0x310 [ 355.854555] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 355.860014] ? addrconf_rs_timer+0x690/0x690 [ 355.864438] ndisc_alloc_skb+0x144/0x340 [ 355.868508] ndisc_send_rs+0x331/0x6e0 [ 355.872406] addrconf_rs_timer+0x314/0x690 [ 355.876653] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 355.880902] call_timer_fn+0x272/0x920 [ 355.884802] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 355.889041] ? process_timeout+0x40/0x40 [ 355.893120] ? __run_timers+0x7da/0xc70 [ 355.897100] ? _raw_spin_unlock_irq+0x27/0x80 [ 355.901622] ? _raw_spin_unlock_irq+0x27/0x80 [ 355.906128] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 355.910369] ? lockdep_hardirqs_on+0x296/0x5b0 [ 355.914966] ? trace_hardirqs_on+0xbd/0x310 [ 355.919290] ? kasan_check_read+0x11/0x20 [ 355.923439] ? __run_timers+0x7da/0xc70 [ 355.927418] ? trace_hardirqs_off_caller+0x310/0x310 [ 355.932529] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 355.936791] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 355.941029] __run_timers+0x7e5/0xc70 [ 355.944868] ? timer_fixup_init+0x70/0x70 [ 355.949019] ? kasan_check_read+0x11/0x20 [ 355.953171] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 355.958464] ? rcu_softirq_qs+0x20/0x20 [ 355.962450] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 355.967991] ? check_preemption_disabled+0x48/0x280 [ 355.973018] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 355.977779] ? retint_kernel+0x2d/0x2d [ 355.981684] ? trace_hardirqs_on_caller+0xc0/0x310 [ 355.986621] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 355.991387] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 355.996872] ? zap_class+0x640/0x640 [ 356.000610] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 356.006162] ? check_preemption_disabled+0x48/0x280 [ 356.011189] ? __lock_is_held+0xb5/0x140 [ 356.015256] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 356.020796] ? check_preemption_disabled+0x48/0x280 [ 356.025832] run_timer_softirq+0x52/0xb0 [ 356.029897] ? rcu_read_lock_sched_held+0x14f/0x180 [ 356.034923] __do_softirq+0x308/0xb7e [ 356.038732] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 356.043229] ? lock_downgrade+0x900/0x900 [ 356.047440] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 356.052588] ? pvclock_read_flags+0x160/0x160 [ 356.057092] ? lapic_next_event+0x5a/0x90 [ 356.061269] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 356.066833] ? kvm_clock_read+0x18/0x30 [ 356.070822] ? kvm_sched_clock_read+0x9/0x20 [ 356.075237] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 356.080784] ? check_preemption_disabled+0x48/0x280 [ 356.085813] irq_exit+0x17f/0x1c0 [ 356.089276] smp_apic_timer_interrupt+0x1cb/0x760 [ 356.094129] ? smp_reschedule_interrupt+0x109/0x650 [ 356.099151] ? smp_call_function_single_interrupt+0x650/0x650 [ 356.105052] ? interrupt_entry+0xb5/0xc0 [ 356.109130] ? trace_hardirqs_off_caller+0xbb/0x310 [ 356.114153] ? trace_hardirqs_off_caller+0xbb/0x310 [ 356.119174] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 356.124022] ? trace_hardirqs_on_caller+0x310/0x310 [ 356.129041] ? trace_hardirqs_on_caller+0x310/0x310 [ 356.134059] ? task_prio+0x50/0x50 [ 356.137605] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 356.143148] ? check_preemption_disabled+0x48/0x280 [ 356.148175] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 356.153044] apic_timer_interrupt+0xf/0x20 [ 356.157292] [ 356.159548] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 356.164481] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 356.183395] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 356.191122] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 356.198407] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 356.205677] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 356.212947] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 356.220221] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 356.227544] skb_clone+0x1bb/0x500 [ 356.231089] ? skb_split+0x11e0/0x11e0 [ 356.235009] ? preempt_notifier_register+0x200/0x200 [ 356.240134] ? __switch_to_asm+0x34/0x70 [ 356.244211] ? __switch_to_asm+0x34/0x70 [ 356.248271] ? __switch_to_asm+0x40/0x70 [ 356.252333] ? __switch_to_asm+0x34/0x70 [ 356.256400] ? __switch_to_asm+0x40/0x70 [ 356.260460] ? __switch_to_asm+0x40/0x70 [ 356.264521] ? __switch_to_asm+0x34/0x70 [ 356.268580] ? __switch_to_asm+0x34/0x70 [ 356.272644] ? __switch_to_asm+0x40/0x70 [ 356.276705] ? __switch_to_asm+0x34/0x70 [ 356.280772] bpf_clone_redirect+0xb9/0x490 [ 356.285021] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 356.290056] ? __sched_text_start+0x8/0x8 [ 356.294217] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 356.299001] ? find_held_lock+0x36/0x1c0 [ 356.303078] ? lock_acquire+0x1ed/0x520 [ 356.307063] ? bpf_test_run+0x3ee/0x7a0 [ 356.311045] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 356.316591] ? check_preemption_disabled+0x48/0x280 [ 356.321617] ? kasan_check_read+0x11/0x20 [ 356.325780] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 356.331071] ? rcu_softirq_qs+0x20/0x20 [ 356.335062] ? preempt_schedule+0x4d/0x60 [ 356.339218] ? ___preempt_schedule+0x16/0x18 [ 356.343639] ? bpf_test_run+0x271/0x7a0 [ 356.347627] ? netlink_diag_dump+0x2a0/0x2a0 [ 356.352076] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 356.357651] ? bpf_test_init.isra.10+0x70/0x100 [ 356.362356] ? bpf_prog_test_run_skb+0x762/0xd60 [ 356.367153] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 356.372019] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 356.377560] ? fput+0x130/0x1a0 [ 356.380846] ? __bpf_prog_get+0x9b/0x290 [ 356.384918] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 356.389766] ? bpf_prog_test_run+0x130/0x1a0 [ 356.394200] ? __x64_sys_bpf+0x3d8/0x520 [ 356.398261] ? bpf_prog_get+0x20/0x20 [ 356.402083] ? do_syscall_64+0x1b9/0x820 [ 356.406152] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 356.411518] ? syscall_return_slowpath+0x5e0/0x5e0 [ 356.416447] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 356.421297] ? trace_hardirqs_on_caller+0x310/0x310 [ 356.426319] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 356.431344] ? prepare_exit_to_usermode+0x291/0x3b0 [ 356.436371] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 356.441251] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 356.446638] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 356.446801] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 356.453569] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 356.453574] Call Trace: [ 356.453581] [ 356.453599] dump_stack+0x244/0x39d [ 356.453618] ? dump_stack_print_info.cold.1+0x20/0x20 [ 356.453644] warn_alloc.cold.116+0xb7/0x1bd [ 356.460310] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 356.469495] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 356.472050] syz-executor4 cpuset=syz4 mems_allowed=0 [ 356.474224] ? lock_downgrade+0x900/0x900 [ 356.511853] ? trace_hardirqs_off+0xb8/0x310 [ 356.516295] ? trace_hardirqs_off+0xb8/0x310 [ 356.520720] __alloc_pages_slowpath+0x2651/0x2de0 [ 356.525598] ? warn_alloc+0x120/0x120 [ 356.529417] ? print_usage_bug+0xc0/0xc0 [ 356.533480] ? warn_alloc+0x120/0x120 [ 356.537288] ? warn_alloc+0x120/0x120 [ 356.541114] ? print_usage_bug+0xc0/0xc0 [ 356.545204] ? kvm_clock_read+0x18/0x30 [ 356.549205] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 356.554228] ? print_usage_bug+0xc0/0xc0 [ 356.558295] ? __lock_acquire+0x62f/0x4c20 [ 356.562536] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 356.568090] ? should_fail+0x22d/0xd01 [ 356.571988] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 356.577270] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 356.582379] ? __lock_acquire+0x62f/0x4c20 [ 356.586617] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 356.591744] ? __lock_acquire+0x62f/0x4c20 [ 356.595980] ? should_fail+0x22d/0xd01 [ 356.599863] ? rcu_irq_exit+0x1a2/0x390 [ 356.603853] ? mark_held_locks+0x130/0x130 [ 356.608096] ? mark_held_locks+0x130/0x130 [ 356.612363] ? mark_held_locks+0xc7/0x130 [ 356.616514] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 356.621536] ? zap_class+0x640/0x640 [ 356.625254] ? print_usage_bug+0xc0/0xc0 [ 356.629323] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 356.634867] ? check_preemption_disabled+0x48/0x280 [ 356.639907] ? __lock_is_held+0xb5/0x140 [ 356.643978] __alloc_pages_nodemask+0xad8/0xea0 [ 356.648650] ? zap_class+0x640/0x640 [ 356.652373] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 356.657405] ? find_held_lock+0x36/0x1c0 [ 356.661606] ? ____cache_alloc_node+0x1c7/0x1e0 [ 356.666284] ? lock_downgrade+0x900/0x900 [ 356.670442] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 356.675989] cache_grow_begin+0xa5/0x8c0 [ 356.680051] ? do_raw_spin_unlock+0xa7/0x330 [ 356.684470] fallback_alloc+0x204/0x2e0 [ 356.688454] ____cache_alloc_node+0x1c7/0x1e0 [ 356.692978] kmem_cache_alloc_node+0xe3/0x730 [ 356.697488] ? ipv6_get_ifaddr+0x42e/0x620 [ 356.701737] __alloc_skb+0x119/0x770 [ 356.705458] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 356.710742] ? netdev_alloc_frag+0x1f0/0x1f0 [ 356.715155] ? lock_downgrade+0x900/0x900 [ 356.719314] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 356.724856] ? refcount_sub_and_test_checked+0x203/0x310 [ 356.730322] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 356.735776] ? addrconf_rs_timer+0x690/0x690 [ 356.740199] ndisc_alloc_skb+0x144/0x340 [ 356.744271] ndisc_send_rs+0x331/0x6e0 [ 356.748167] addrconf_rs_timer+0x314/0x690 [ 356.752409] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 356.756660] call_timer_fn+0x272/0x920 [ 356.760562] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 356.764796] ? process_timeout+0x40/0x40 [ 356.768886] ? mark_held_locks+0xc7/0x130 [ 356.773037] ? _raw_spin_unlock_irq+0x27/0x80 [ 356.777536] ? _raw_spin_unlock_irq+0x27/0x80 [ 356.782034] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 356.786275] ? lockdep_hardirqs_on+0x296/0x5b0 [ 356.790866] ? trace_hardirqs_on+0xbd/0x310 [ 356.795211] ? kasan_check_read+0x11/0x20 [ 356.799359] ? __run_timers+0x7da/0xc70 [ 356.803338] ? trace_hardirqs_off_caller+0x310/0x310 [ 356.808453] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 356.812696] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 356.816935] __run_timers+0x7e5/0xc70 [ 356.820749] ? timer_fixup_init+0x70/0x70 [ 356.824914] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 356.829941] ? zap_class+0x640/0x640 [ 356.833664] ? print_usage_bug+0xc0/0xc0 [ 356.837729] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 356.842929] ? find_held_lock+0x36/0x1c0 [ 356.846999] ? zap_class+0x640/0x640 [ 356.850720] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 356.856262] ? check_preemption_disabled+0x48/0x280 [ 356.861291] ? __lock_is_held+0xb5/0x140 [ 356.865368] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 356.870912] ? check_preemption_disabled+0x48/0x280 [ 356.875932] run_timer_softirq+0x52/0xb0 [ 356.879999] ? rcu_read_lock_sched_held+0x14f/0x180 [ 356.885018] __do_softirq+0x308/0xb7e [ 356.888826] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 356.893365] ? lock_downgrade+0x900/0x900 [ 356.897525] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 356.902641] ? pvclock_read_flags+0x160/0x160 [ 356.907149] ? lapic_next_event+0x5a/0x90 [ 356.911305] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 356.916863] ? kvm_clock_read+0x18/0x30 [ 356.920843] ? kvm_sched_clock_read+0x9/0x20 [ 356.925261] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 356.930802] ? check_preemption_disabled+0x48/0x280 [ 356.935830] irq_exit+0x17f/0x1c0 [ 356.939290] smp_apic_timer_interrupt+0x1cb/0x760 [ 356.944138] ? smp_reschedule_interrupt+0x109/0x650 [ 356.949320] ? smp_call_function_single_interrupt+0x650/0x650 [ 356.955208] ? interrupt_entry+0xb5/0xc0 [ 356.959273] ? trace_hardirqs_off_caller+0xbb/0x310 [ 356.964289] ? trace_hardirqs_off_caller+0xbb/0x310 [ 356.969313] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 356.974163] ? trace_hardirqs_on_caller+0x310/0x310 [ 356.979211] ? trace_hardirqs_on_caller+0x310/0x310 [ 356.984247] ? task_prio+0x50/0x50 [ 356.987790] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 356.993347] ? check_preemption_disabled+0x48/0x280 [ 356.998386] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 357.003260] apic_timer_interrupt+0xf/0x20 [ 357.007495] [ 357.009737] RIP: 0010:lock_acquire+0x268/0x520 [ 357.014324] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 357.033229] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 357.040941] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 357.048214] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 357.055489] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 357.062763] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 357.070034] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 357.077354] ? lruvec_lru_size+0x450/0x450 [ 357.082144] ? kasan_check_read+0x11/0x20 [ 357.086305] ? lock_release+0xa00/0xa00 [ 357.090290] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 357.095233] down_read_trylock+0xda/0x140 [ 357.099379] ? shrink_slab+0x207/0x8c0 [ 357.103268] ? downgrade_write+0x270/0x270 [ 357.107514] shrink_slab+0x207/0x8c0 [ 357.111231] ? shrink_active_list+0x1f00/0x1f00 [ 357.115919] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 357.121549] ? __lock_acquire+0x62f/0x4c20 [ 357.125790] ? percpu_ref_get_many+0x240/0x240 [ 357.130387] ? print_usage_bug+0xc0/0xc0 [ 357.134461] shrink_node+0x431/0x16b0 [ 357.138269] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 357.143574] ? shrink_node_memcg+0x18f0/0x18f0 [ 357.148168] ? kvm_clock_read+0x18/0x30 [ 357.152162] ? ktime_get+0x2c1/0x400 [ 357.155886] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 357.160408] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 357.165960] ? __cpuset_node_allowed+0x19b/0x660 [ 357.170720] ? mark_held_locks+0x130/0x130 [ 357.174959] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 357.180688] ? zap_class+0x640/0x640 [ 357.184441] do_try_to_free_pages+0x3e7/0x1290 [ 357.189027] ? zap_class+0x640/0x640 [ 357.192762] ? shrink_node+0x16b0/0x16b0 [ 357.196824] ? __lock_is_held+0xb5/0x140 [ 357.200922] try_to_free_pages+0x4d0/0xb90 [ 357.205163] ? do_try_to_free_pages+0x1290/0x1290 [ 357.210022] ? lock_acquire+0x1ed/0x520 [ 357.213996] ? set_page_refcounted+0x280/0x280 [ 357.218589] ? lock_release+0xa00/0xa00 [ 357.222573] ? _raw_spin_unlock_irq+0x60/0x80 [ 357.227094] ? psi_memstall_enter+0x240/0x2b0 [ 357.231614] ? psi_memstall_tick+0x230/0x230 [ 357.236040] __alloc_pages_slowpath+0xa48/0x2de0 [ 357.240846] ? warn_alloc+0x120/0x120 [ 357.244651] ? mark_held_locks+0x130/0x130 [ 357.248899] ? find_get_entry+0xaae/0x1120 [ 357.253156] ? filemap_map_pages+0x1a20/0x1a20 [ 357.257744] ? zap_class+0x640/0x640 [ 357.261464] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 357.267018] ? check_preemption_disabled+0x48/0x280 [ 357.272037] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 357.277577] ? should_fail+0x22d/0xd01 [ 357.281494] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 357.286613] ? zap_class+0x640/0x640 [ 357.290367] ? __lock_is_held+0xb5/0x140 [ 357.294487] ? mark_held_locks+0x130/0x130 [ 357.298738] ? lock_release+0xa00/0xa00 [ 357.302715] ? perf_trace_sched_process_exec+0x860/0x860 [ 357.308169] ? xa_load+0x2ba/0x460 [ 357.311713] ? lock_downgrade+0x900/0x900 [ 357.315887] ? __might_sleep+0x95/0x190 [ 357.319867] __alloc_pages_nodemask+0xad8/0xea0 [ 357.324556] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 357.329578] ? __page_cache_alloc+0x191/0x5c0 [ 357.334079] ? xa_load+0x2e1/0x460 [ 357.337630] ? xa_clear_mark+0x40/0x40 [ 357.341521] ? zap_class+0x640/0x640 [ 357.345244] ? zap_class+0x640/0x640 [ 357.348957] ? zap_class+0x640/0x640 [ 357.352675] ? __do_page_cache_readahead+0x663/0x810 [ 357.357786] ? find_held_lock+0x36/0x1c0 [ 357.361867] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 357.367418] alloc_pages_current+0x173/0x350 [ 357.371838] __page_cache_alloc+0x38c/0x5c0 [ 357.376165] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 357.381099] ? kasan_check_read+0x11/0x20 [ 357.385263] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 357.390545] ? generic_perform_write+0x6a0/0x6a0 [ 357.395303] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 357.400848] ? check_preemption_disabled+0x48/0x280 [ 357.405909] filemap_fault+0x1595/0x25f0 [ 357.410000] ? __lock_page_or_retry+0xa00/0xa00 [ 357.414677] ? mark_held_locks+0x130/0x130 [ 357.418928] ? filemap_map_pages+0xd6b/0x1a20 [ 357.423429] ? lock_downgrade+0x900/0x900 [ 357.427581] ? check_preemption_disabled+0x48/0x280 [ 357.432605] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 357.437543] ? kasan_check_read+0x11/0x20 [ 357.441696] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 357.446979] ? rcu_softirq_qs+0x20/0x20 [ 357.450977] ? filemap_map_pages+0xd92/0x1a20 [ 357.455487] ? find_get_entries_tag+0x1400/0x1400 [ 357.460340] ? debug_object_destroy+0x2b0/0x2b0 [ 357.465014] ? lock_pi_update_atomic+0x150/0x150 [ 357.469776] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 357.475330] ? lock_acquire+0x1ed/0x520 [ 357.479307] ? ext4_filemap_fault+0x7a/0xad [ 357.483636] ? lock_release+0xa00/0xa00 [ 357.487610] ? perf_trace_sched_process_exec+0x860/0x860 [ 357.493062] ? print_usage_bug+0xc0/0xc0 [ 357.497134] ? print_usage_bug+0xc0/0xc0 [ 357.501216] ? down_read+0x8d/0x120 [ 357.504863] ? ext4_filemap_fault+0x7a/0xad [ 357.509227] ? __down_interruptible+0x700/0x700 [ 357.513910] ext4_filemap_fault+0x82/0xad [ 357.518068] __do_fault+0x100/0x6b0 [ 357.521698] ? find_held_lock+0x36/0x1c0 [ 357.525763] ? pmd_devmap_trans_unstable+0x220/0x220 [ 357.530890] ? mark_held_locks+0x130/0x130 [ 357.535135] ? mark_held_locks+0x130/0x130 [ 357.539382] ? kasan_check_read+0x11/0x20 [ 357.543537] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 357.549082] __handle_mm_fault+0x3ea0/0x5be0 [ 357.553498] ? perf_trace_lock+0x7a0/0x7a0 [ 357.557746] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 357.562599] ? __switch_to_asm+0x34/0x70 [ 357.566660] ? __switch_to_asm+0x34/0x70 [ 357.570749] ? zap_class+0x640/0x640 [ 357.574476] ? zap_class+0x640/0x640 [ 357.578196] ? __x64_sys_futex+0x53e/0x6a0 [ 357.582438] ? find_held_lock+0x36/0x1c0 [ 357.586510] ? handle_mm_fault+0x42a/0xc70 [ 357.590754] ? lock_downgrade+0x900/0x900 [ 357.594911] ? check_preemption_disabled+0x48/0x280 [ 357.599932] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 357.604888] ? kasan_check_read+0x11/0x20 [ 357.609056] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 357.614337] ? rcu_softirq_qs+0x20/0x20 [ 357.618314] ? trace_hardirqs_off_caller+0x310/0x310 [ 357.623430] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 357.628971] ? sync_mm_rss+0x9a/0x1c0 [ 357.632794] handle_mm_fault+0x54f/0xc70 [ 357.636864] ? __handle_mm_fault+0x5be0/0x5be0 [ 357.641461] ? find_vma+0x34/0x190 [ 357.645010] __do_page_fault+0x5e8/0xe60 [ 357.649075] ? trace_hardirqs_off+0xb8/0x310 [ 357.653510] do_page_fault+0xf2/0x7e0 [ 357.657331] ? vmalloc_sync_all+0x30/0x30 [ 357.661492] ? error_entry+0x70/0xd0 [ 357.665213] ? trace_hardirqs_off_caller+0xbb/0x310 [ 357.670234] ? trace_hardirqs_on_caller+0xc0/0x310 [ 357.675167] ? syscall_return_slowpath+0x5e0/0x5e0 [ 357.680125] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 357.684978] ? trace_hardirqs_on_caller+0x310/0x310 [ 357.689999] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 357.695460] ? prepare_exit_to_usermode+0x291/0x3b0 [ 357.700483] ? page_fault+0x8/0x30 [ 357.704046] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 357.708910] ? page_fault+0x8/0x30 [ 357.712456] page_fault+0x1e/0x30 [ 357.715925] RIP: 0033:0x45ddf3 [ 357.719143] Code: Bad RIP value. [ 357.722505] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 357.727864] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 357.735139] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 357.742414] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 357.749685] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 357.756955] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 357.764251] warn_alloc_show_mem: 1 callbacks suppressed [ 357.764263] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 357.764265] Mem-Info: [ 357.764296] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 357.764296] active_file:17 inactive_file:17 isolated_file:0 [ 357.764296] unevictable:0 dirty:4 writeback:0 unstable:0 [ 357.764296] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 357.764296] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 357.764296] free:13550 free_pcp:124 free_cma:0 [ 357.769642] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 357.776924] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 357.779327] Call Trace: [ 357.812391] 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 [ 357.821744] [ 357.849510] lowmem_reserve[]: 0 2818 6321 6321 [ 357.852118] dump_stack+0x244/0x39d [ 357.878223] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 357.880395] ? dump_stack_print_info.cold.1+0x20/0x20 [ 357.884931] lowmem_reserve[]: 0 0 3503 3503 [ 357.888566] warn_alloc.cold.116+0xb7/0x1bd [ 357.915870] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 357.921081] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 357.925369] lowmem_reserve[]: 0 0 0 0 [ 357.929706] ? lock_downgrade+0x900/0x900 [ 357.958600] 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 [ 357.963456] ? trace_hardirqs_off+0xb8/0x310 [ 357.967222] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 357.971370] ? trace_hardirqs_off+0xb8/0x310 [ 357.984865] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 357.989301] __alloc_pages_slowpath+0x2651/0x2de0 [ 358.004028] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 358.008451] ? warn_alloc+0x120/0x120 [ 358.023152] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 358.027999] ? warn_alloc+0x120/0x120 [ 358.036825] 1360 total pagecache pages [ 358.040625] ? warn_alloc+0x120/0x120 [ 358.049182] 0 pages in swap cache [ 358.052973] ? print_usage_bug+0xc0/0xc0 [ 358.056838] Swap cache stats: add 0, delete 0, find 0/0 [ 358.060633] ? debug_object_activate+0x402/0x600 [ 358.064057] Free swap = 0kB [ 358.068121] ? print_usage_bug+0xc0/0xc0 [ 358.073467] Total swap = 0kB [ 358.078222] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 358.081211] 1965979 pages RAM [ 358.085268] ? should_fail+0x22d/0xd01 [ 358.088262] 0 pages HighMem/MovableOnly [ 358.093797] ? __lock_acquire+0x62f/0x4c20 [ 358.096872] 342854 pages reserved [ 358.100757] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 358.104704] 0 pages cma reserved [ 358.108931] ? __lock_acquire+0x62f/0x4c20 [ 358.112437] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 358.117461] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 358.120887] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 358.125042] ? __lock_acquire+0x62f/0x4c20 [ 358.131508] syz-fuzzer cpuset=/ mems_allowed=0 [ 358.136602] ? should_fail+0x22d/0xd01 [ 358.136627] ? mark_held_locks+0x130/0x130 [ 358.163754] ? mark_held_locks+0x130/0x130 [ 358.167998] ? lock_downgrade+0x900/0x900 [ 358.172164] ? trace_hardirqs_off+0xb8/0x310 [ 358.176599] ? zap_class+0x640/0x640 [ 358.180322] ? print_usage_bug+0xc0/0xc0 [ 358.184394] ? trace_hardirqs_on+0x310/0x310 [ 358.188801] ? do_raw_spin_trylock+0x270/0x270 [ 358.193395] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 358.198937] ? check_preemption_disabled+0x48/0x280 [ 358.203967] ? __lock_is_held+0xb5/0x140 [ 358.208038] __alloc_pages_nodemask+0xad8/0xea0 [ 358.212710] ? zap_class+0x640/0x640 [ 358.216429] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 358.221456] ? find_held_lock+0x36/0x1c0 [ 358.225527] ? ____cache_alloc_node+0x1c7/0x1e0 [ 358.230198] ? lock_downgrade+0x900/0x900 [ 358.234361] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 358.239912] cache_grow_begin+0xa5/0x8c0 [ 358.243978] ? do_raw_spin_unlock+0xa7/0x330 [ 358.248402] fallback_alloc+0x204/0x2e0 [ 358.252391] ____cache_alloc_node+0x1c7/0x1e0 [ 358.256898] kmem_cache_alloc_node+0xe3/0x730 [ 358.261404] ? ipv6_get_ifaddr+0x42e/0x620 [ 358.265653] __alloc_skb+0x119/0x770 [ 358.269367] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 358.274667] ? netdev_alloc_frag+0x1f0/0x1f0 [ 358.279093] ? lock_downgrade+0x900/0x900 [ 358.283257] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 358.288817] ? refcount_sub_and_test_checked+0x203/0x310 [ 358.294275] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 358.299744] ? addrconf_rs_timer+0x690/0x690 [ 358.304203] ndisc_alloc_skb+0x144/0x340 [ 358.308276] ndisc_send_rs+0x331/0x6e0 [ 358.312187] addrconf_rs_timer+0x314/0x690 [ 358.316432] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 358.320679] call_timer_fn+0x272/0x920 [ 358.324582] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 358.328819] ? process_timeout+0x40/0x40 [ 358.332906] ? __run_timers+0x7da/0xc70 [ 358.336927] ? _raw_spin_unlock_irq+0x27/0x80 [ 358.341425] ? _raw_spin_unlock_irq+0x27/0x80 [ 358.345921] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 358.350159] ? lockdep_hardirqs_on+0x296/0x5b0 [ 358.354747] ? trace_hardirqs_on+0xbd/0x310 [ 358.359072] ? kasan_check_read+0x11/0x20 [ 358.363241] ? __run_timers+0x7da/0xc70 [ 358.367221] ? trace_hardirqs_off_caller+0x310/0x310 [ 358.372340] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 358.376575] __run_timers+0x7e5/0xc70 [ 358.380398] ? timer_fixup_init+0x70/0x70 [ 358.384552] ? kasan_check_read+0x11/0x20 [ 358.388699] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 358.393996] ? rcu_softirq_qs+0x20/0x20 [ 358.397974] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 358.403518] ? check_preemption_disabled+0x48/0x280 [ 358.408544] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 358.413305] ? retint_kernel+0x2d/0x2d [ 358.417200] ? trace_hardirqs_on_caller+0xc0/0x310 [ 358.422141] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 358.426913] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 358.432369] ? zap_class+0x640/0x640 [ 358.436097] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 358.441650] ? check_preemption_disabled+0x48/0x280 [ 358.446695] ? __lock_is_held+0xb5/0x140 [ 358.450764] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 358.456306] ? check_preemption_disabled+0x48/0x280 [ 358.461330] run_timer_softirq+0x52/0xb0 [ 358.465401] ? rcu_read_lock_sched_held+0x14f/0x180 [ 358.470422] __do_softirq+0x308/0xb7e [ 358.474230] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 358.478726] ? lock_downgrade+0x900/0x900 [ 358.482878] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 358.488010] ? pvclock_read_flags+0x160/0x160 [ 358.492528] ? lapic_next_event+0x5a/0x90 [ 358.496680] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 358.502227] ? kvm_clock_read+0x18/0x30 [ 358.506210] ? kvm_sched_clock_read+0x9/0x20 [ 358.510626] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 358.516179] ? check_preemption_disabled+0x48/0x280 [ 358.521206] irq_exit+0x17f/0x1c0 [ 358.524666] smp_apic_timer_interrupt+0x1cb/0x760 [ 358.529513] ? smp_reschedule_interrupt+0x109/0x650 [ 358.534532] ? smp_call_function_single_interrupt+0x650/0x650 [ 358.540421] ? interrupt_entry+0xb5/0xc0 [ 358.544488] ? trace_hardirqs_off_caller+0xbb/0x310 [ 358.549503] ? trace_hardirqs_off_caller+0xbb/0x310 [ 358.554521] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 358.559369] ? trace_hardirqs_on_caller+0x310/0x310 [ 358.564400] ? trace_hardirqs_on_caller+0x310/0x310 [ 358.569456] ? task_prio+0x50/0x50 [ 358.573002] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 358.578542] ? check_preemption_disabled+0x48/0x280 [ 358.583578] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 358.588432] apic_timer_interrupt+0xf/0x20 [ 358.592661] [ 358.594902] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 358.599835] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 358.618744] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 358.626458] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 358.633725] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 358.641008] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 358.648285] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 358.655568] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 358.662902] skb_clone+0x1bb/0x500 [ 358.666448] ? skb_split+0x11e0/0x11e0 [ 358.670342] ? preempt_notifier_register+0x200/0x200 [ 358.675443] ? __switch_to_asm+0x34/0x70 [ 358.679527] ? __switch_to_asm+0x34/0x70 [ 358.683583] ? __switch_to_asm+0x40/0x70 [ 358.687640] ? __switch_to_asm+0x34/0x70 [ 358.691698] ? __switch_to_asm+0x40/0x70 [ 358.695761] ? __switch_to_asm+0x40/0x70 [ 358.699821] ? __switch_to_asm+0x34/0x70 [ 358.703897] ? __switch_to_asm+0x34/0x70 [ 358.707957] ? __switch_to_asm+0x40/0x70 [ 358.712045] ? __switch_to_asm+0x34/0x70 [ 358.716136] bpf_clone_redirect+0xb9/0x490 [ 358.720406] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 358.725426] ? __sched_text_start+0x8/0x8 [ 358.729578] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 358.734353] ? find_held_lock+0x36/0x1c0 [ 358.738431] ? lock_acquire+0x1ed/0x520 [ 358.742426] ? bpf_test_run+0x3ee/0x7a0 [ 358.746403] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 358.751945] ? check_preemption_disabled+0x48/0x280 [ 358.756986] ? kasan_check_read+0x11/0x20 [ 358.761148] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 358.766427] ? rcu_softirq_qs+0x20/0x20 [ 358.770407] ? preempt_schedule+0x4d/0x60 [ 358.774558] ? ___preempt_schedule+0x16/0x18 [ 358.778976] ? bpf_test_run+0x271/0x7a0 [ 358.782966] ? netlink_diag_dump+0x2a0/0x2a0 [ 358.787388] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 358.792944] ? bpf_test_init.isra.10+0x70/0x100 [ 358.797625] ? bpf_prog_test_run_skb+0x762/0xd60 [ 358.802423] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 358.807277] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 358.812817] ? fput+0x130/0x1a0 [ 358.816102] ? __bpf_prog_get+0x9b/0x290 [ 358.820195] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 358.825043] ? bpf_prog_test_run+0x130/0x1a0 [ 358.829459] ? __x64_sys_bpf+0x3d8/0x520 [ 358.833521] ? bpf_prog_get+0x20/0x20 [ 358.837348] ? do_syscall_64+0x1b9/0x820 [ 358.841415] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 358.846783] ? syscall_return_slowpath+0x5e0/0x5e0 [ 358.851716] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 358.856564] ? trace_hardirqs_on_caller+0x310/0x310 [ 358.861583] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 358.866611] ? prepare_exit_to_usermode+0x291/0x3b0 [ 358.871637] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 358.876501] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 358.881889] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 358.881994] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 358.888844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 358.888853] Call Trace: [ 358.895438] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 358.904681] [ 358.907253] syz-executor4 cpuset=syz4 mems_allowed=0 [ 358.917742] dump_stack+0x244/0x39d [ 358.928603] ? dump_stack_print_info.cold.1+0x20/0x20 [ 358.933819] warn_alloc.cold.116+0xb7/0x1bd [ 358.938162] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 358.943012] ? lock_downgrade+0x900/0x900 [ 358.947175] ? trace_hardirqs_off+0xb8/0x310 [ 358.951741] ? trace_hardirqs_off+0xb8/0x310 [ 358.956189] __alloc_pages_slowpath+0x2651/0x2de0 [ 358.961077] ? warn_alloc+0x120/0x120 [ 358.964900] ? print_usage_bug+0xc0/0xc0 [ 358.968970] ? warn_alloc+0x120/0x120 [ 358.972786] ? warn_alloc+0x120/0x120 [ 358.976588] ? print_usage_bug+0xc0/0xc0 [ 358.980684] ? print_usage_bug+0xc0/0xc0 [ 358.984747] ? __lock_acquire+0x62f/0x4c20 [ 358.989008] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 358.994549] ? should_fail+0x22d/0xd01 [ 358.998441] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 359.003547] ? __lock_acquire+0x62f/0x4c20 [ 359.007788] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 359.012896] ? __lock_acquire+0x62f/0x4c20 [ 359.017138] ? should_fail+0x22d/0xd01 [ 359.021027] ? find_held_lock+0x36/0x1c0 [ 359.025103] ? mark_held_locks+0x130/0x130 [ 359.029355] ? mark_held_locks+0x130/0x130 [ 359.033606] ? zap_class+0x640/0x640 [ 359.037323] ? zap_class+0x640/0x640 [ 359.041043] ? print_usage_bug+0xc0/0xc0 [ 359.045143] ? do_raw_spin_unlock+0xa7/0x330 [ 359.049559] ? zap_class+0x640/0x640 [ 359.053274] ? print_usage_bug+0xc0/0xc0 [ 359.057334] ? wq_watchdog_touch+0x9c/0xfe [ 359.061573] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 359.067121] ? check_preemption_disabled+0x48/0x280 [ 359.072158] ? __lock_is_held+0xb5/0x140 [ 359.076232] __alloc_pages_nodemask+0xad8/0xea0 [ 359.081444] ? zap_class+0x640/0x640 [ 359.085171] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 359.090199] ? find_held_lock+0x36/0x1c0 [ 359.094277] ? ____cache_alloc_node+0x1c7/0x1e0 [ 359.098954] ? lock_downgrade+0x900/0x900 [ 359.103123] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 359.108669] cache_grow_begin+0xa5/0x8c0 [ 359.112735] ? do_raw_spin_unlock+0xa7/0x330 [ 359.117153] fallback_alloc+0x204/0x2e0 [ 359.121142] ____cache_alloc_node+0x1c7/0x1e0 [ 359.125645] kmem_cache_alloc_node+0xe3/0x730 [ 359.130146] ? ipv6_get_ifaddr+0x42e/0x620 [ 359.134395] __alloc_skb+0x119/0x770 [ 359.138148] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 359.143432] ? netdev_alloc_frag+0x1f0/0x1f0 [ 359.147844] ? lock_downgrade+0x900/0x900 [ 359.152023] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 359.157566] ? refcount_sub_and_test_checked+0x203/0x310 [ 359.163058] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 359.168522] ? addrconf_rs_timer+0x690/0x690 [ 359.172946] ndisc_alloc_skb+0x144/0x340 [ 359.177013] ndisc_send_rs+0x331/0x6e0 [ 359.180918] addrconf_rs_timer+0x314/0x690 [ 359.185163] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 359.189412] call_timer_fn+0x272/0x920 [ 359.193302] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 359.197539] ? process_timeout+0x40/0x40 [ 359.201610] ? mark_held_locks+0xc7/0x130 [ 359.205772] ? _raw_spin_unlock_irq+0x27/0x80 [ 359.210282] ? _raw_spin_unlock_irq+0x27/0x80 [ 359.214778] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 359.219033] ? lockdep_hardirqs_on+0x296/0x5b0 [ 359.223620] ? trace_hardirqs_on+0xbd/0x310 [ 359.227945] ? kasan_check_read+0x11/0x20 [ 359.232090] ? __run_timers+0x7da/0xc70 [ 359.236086] ? trace_hardirqs_off_caller+0x310/0x310 [ 359.241209] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 359.245452] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 359.249689] __run_timers+0x7e5/0xc70 [ 359.253503] ? timer_fixup_init+0x70/0x70 [ 359.257657] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 359.262677] ? zap_class+0x640/0x640 [ 359.266400] ? print_usage_bug+0xc0/0xc0 [ 359.270498] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 359.275694] ? find_held_lock+0x36/0x1c0 [ 359.279776] ? zap_class+0x640/0x640 [ 359.283497] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 359.289054] ? check_preemption_disabled+0x48/0x280 [ 359.294084] ? __lock_is_held+0xb5/0x140 [ 359.298159] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 359.303698] ? check_preemption_disabled+0x48/0x280 [ 359.308724] run_timer_softirq+0x52/0xb0 [ 359.312790] ? rcu_read_lock_sched_held+0x14f/0x180 [ 359.317826] __do_softirq+0x308/0xb7e [ 359.321646] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 359.326155] ? lock_downgrade+0x900/0x900 [ 359.330309] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 359.335439] ? pvclock_read_flags+0x160/0x160 [ 359.339958] ? lapic_next_event+0x5a/0x90 [ 359.344120] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 359.349666] ? kvm_clock_read+0x18/0x30 [ 359.353642] ? kvm_sched_clock_read+0x9/0x20 [ 359.358062] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 359.363622] ? check_preemption_disabled+0x48/0x280 [ 359.368661] irq_exit+0x17f/0x1c0 [ 359.372130] smp_apic_timer_interrupt+0x1cb/0x760 [ 359.376975] ? smp_reschedule_interrupt+0x109/0x650 [ 359.381996] ? smp_call_function_single_interrupt+0x650/0x650 [ 359.387896] ? interrupt_entry+0xb5/0xc0 [ 359.391964] ? trace_hardirqs_off_caller+0xbb/0x310 [ 359.396984] ? trace_hardirqs_off_caller+0xbb/0x310 [ 359.402002] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 359.406850] ? trace_hardirqs_on_caller+0x310/0x310 [ 359.411870] ? trace_hardirqs_on_caller+0x310/0x310 [ 359.416900] ? task_prio+0x50/0x50 [ 359.420446] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 359.425992] ? check_preemption_disabled+0x48/0x280 [ 359.431020] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 359.435873] apic_timer_interrupt+0xf/0x20 [ 359.440118] [ 359.442381] RIP: 0010:lock_acquire+0x268/0x520 [ 359.446997] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 359.465920] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 359.473631] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 359.480904] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 359.488177] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 359.495448] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 359.502716] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 359.510037] ? lruvec_lru_size+0x450/0x450 [ 359.514285] ? kasan_check_read+0x11/0x20 [ 359.518442] ? lock_release+0xa00/0xa00 [ 359.522424] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 359.527369] down_read_trylock+0xda/0x140 [ 359.531516] ? shrink_slab+0x207/0x8c0 [ 359.535416] ? downgrade_write+0x270/0x270 [ 359.539662] shrink_slab+0x207/0x8c0 [ 359.543379] ? shrink_active_list+0x1f00/0x1f00 [ 359.548061] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 359.553696] ? __lock_acquire+0x62f/0x4c20 [ 359.557936] ? percpu_ref_get_many+0x240/0x240 [ 359.562554] ? print_usage_bug+0xc0/0xc0 [ 359.566639] shrink_node+0x431/0x16b0 [ 359.570443] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 359.575766] ? shrink_node_memcg+0x18f0/0x18f0 [ 359.580358] ? kvm_clock_read+0x18/0x30 [ 359.584347] ? ktime_get+0x2c1/0x400 [ 359.588069] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 359.592569] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 359.598116] ? __cpuset_node_allowed+0x19b/0x660 [ 359.602874] ? mark_held_locks+0x130/0x130 [ 359.607130] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 359.612872] ? zap_class+0x640/0x640 [ 359.616608] do_try_to_free_pages+0x3e7/0x1290 [ 359.621204] ? zap_class+0x640/0x640 [ 359.624946] ? shrink_node+0x16b0/0x16b0 [ 359.629011] ? __lock_is_held+0xb5/0x140 [ 359.633092] try_to_free_pages+0x4d0/0xb90 [ 359.637344] ? do_try_to_free_pages+0x1290/0x1290 [ 359.642204] ? lock_acquire+0x1ed/0x520 [ 359.646180] ? set_page_refcounted+0x280/0x280 [ 359.650773] ? lock_release+0xa00/0xa00 [ 359.654753] ? _raw_spin_unlock_irq+0x60/0x80 [ 359.659253] ? psi_memstall_enter+0x240/0x2b0 [ 359.663753] ? psi_memstall_tick+0x230/0x230 [ 359.668180] __alloc_pages_slowpath+0xa48/0x2de0 [ 359.672973] ? warn_alloc+0x120/0x120 [ 359.676775] ? mark_held_locks+0x130/0x130 [ 359.681021] ? find_get_entry+0xaae/0x1120 [ 359.685268] ? filemap_map_pages+0x1a20/0x1a20 [ 359.689869] ? zap_class+0x640/0x640 [ 359.693599] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 359.699159] ? check_preemption_disabled+0x48/0x280 [ 359.704194] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 359.709747] ? should_fail+0x22d/0xd01 [ 359.713640] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 359.718750] ? zap_class+0x640/0x640 [ 359.722495] ? __lock_is_held+0xb5/0x140 [ 359.726567] ? mark_held_locks+0x130/0x130 [ 359.730806] ? lock_release+0xa00/0xa00 [ 359.734785] ? perf_trace_sched_process_exec+0x860/0x860 [ 359.740256] ? xa_load+0x2ba/0x460 [ 359.743811] ? lock_downgrade+0x900/0x900 [ 359.747981] ? __might_sleep+0x95/0x190 [ 359.751970] __alloc_pages_nodemask+0xad8/0xea0 [ 359.756668] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 359.761688] ? __page_cache_alloc+0x191/0x5c0 [ 359.766186] ? xa_load+0x2e1/0x460 [ 359.769735] ? xa_clear_mark+0x40/0x40 [ 359.773627] ? zap_class+0x640/0x640 [ 359.777350] ? zap_class+0x640/0x640 [ 359.781095] ? zap_class+0x640/0x640 [ 359.784823] ? __do_page_cache_readahead+0x663/0x810 [ 359.789947] ? find_held_lock+0x36/0x1c0 [ 359.794016] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 359.799567] alloc_pages_current+0x173/0x350 [ 359.804017] __page_cache_alloc+0x38c/0x5c0 [ 359.808341] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 359.813274] ? kasan_check_read+0x11/0x20 [ 359.817424] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 359.822706] ? generic_perform_write+0x6a0/0x6a0 [ 359.827465] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 359.833007] ? check_preemption_disabled+0x48/0x280 [ 359.838038] filemap_fault+0x1595/0x25f0 [ 359.842123] ? __lock_page_or_retry+0xa00/0xa00 [ 359.846801] ? mark_held_locks+0x130/0x130 [ 359.851045] ? filemap_map_pages+0xd6b/0x1a20 [ 359.855579] ? lock_downgrade+0x900/0x900 [ 359.859735] ? check_preemption_disabled+0x48/0x280 [ 359.864760] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 359.869695] ? kasan_check_read+0x11/0x20 [ 359.873841] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 359.879125] ? rcu_softirq_qs+0x20/0x20 [ 359.883125] ? filemap_map_pages+0xd92/0x1a20 [ 359.887635] ? find_get_entries_tag+0x1400/0x1400 [ 359.892485] ? debug_object_destroy+0x2b0/0x2b0 [ 359.897161] ? lock_pi_update_atomic+0x150/0x150 [ 359.901936] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 359.907491] ? lock_acquire+0x1ed/0x520 [ 359.911466] ? ext4_filemap_fault+0x7a/0xad [ 359.915795] ? lock_release+0xa00/0xa00 [ 359.919771] ? perf_trace_sched_process_exec+0x860/0x860 [ 359.925224] ? print_usage_bug+0xc0/0xc0 [ 359.929289] ? print_usage_bug+0xc0/0xc0 [ 359.933400] ? down_read+0x8d/0x120 [ 359.937026] ? ext4_filemap_fault+0x7a/0xad [ 359.941381] ? __down_interruptible+0x700/0x700 [ 359.946091] ext4_filemap_fault+0x82/0xad [ 359.950268] __do_fault+0x100/0x6b0 [ 359.953939] ? find_held_lock+0x36/0x1c0 [ 359.958003] ? pmd_devmap_trans_unstable+0x220/0x220 [ 359.963125] ? mark_held_locks+0x130/0x130 [ 359.967367] ? mark_held_locks+0x130/0x130 [ 359.971629] ? kasan_check_read+0x11/0x20 [ 359.975798] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 359.981342] __handle_mm_fault+0x3ea0/0x5be0 [ 359.985753] ? perf_trace_lock+0x7a0/0x7a0 [ 359.990007] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 359.994861] ? __switch_to_asm+0x34/0x70 [ 359.998932] ? __switch_to_asm+0x34/0x70 [ 360.003008] ? zap_class+0x640/0x640 [ 360.006723] ? zap_class+0x640/0x640 [ 360.010456] ? __x64_sys_futex+0x53e/0x6a0 [ 360.014697] ? find_held_lock+0x36/0x1c0 [ 360.018782] ? handle_mm_fault+0x42a/0xc70 [ 360.023021] ? lock_downgrade+0x900/0x900 [ 360.027182] ? check_preemption_disabled+0x48/0x280 [ 360.032207] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 360.037145] ? kasan_check_read+0x11/0x20 [ 360.041298] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 360.046579] ? rcu_softirq_qs+0x20/0x20 [ 360.050555] ? trace_hardirqs_off_caller+0x310/0x310 [ 360.055669] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 360.061211] ? sync_mm_rss+0x9a/0x1c0 [ 360.065016] handle_mm_fault+0x54f/0xc70 [ 360.069087] ? __handle_mm_fault+0x5be0/0x5be0 [ 360.073684] ? find_vma+0x34/0x190 [ 360.077237] __do_page_fault+0x5e8/0xe60 [ 360.081321] ? trace_hardirqs_off+0xb8/0x310 [ 360.085748] do_page_fault+0xf2/0x7e0 [ 360.089553] ? vmalloc_sync_all+0x30/0x30 [ 360.093707] ? error_entry+0x70/0xd0 [ 360.097424] ? trace_hardirqs_off_caller+0xbb/0x310 [ 360.102443] ? trace_hardirqs_on_caller+0xc0/0x310 [ 360.107374] ? syscall_return_slowpath+0x5e0/0x5e0 [ 360.112318] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 360.117170] ? trace_hardirqs_on_caller+0x310/0x310 [ 360.122194] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 360.127653] ? prepare_exit_to_usermode+0x291/0x3b0 [ 360.132681] ? page_fault+0x8/0x30 [ 360.136240] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 360.141090] ? page_fault+0x8/0x30 [ 360.144636] page_fault+0x1e/0x30 [ 360.148087] RIP: 0033:0x45ddf3 [ 360.151304] Code: Bad RIP value. [ 360.154665] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 360.160028] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 360.167297] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 360.174566] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 360.181835] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 360.189104] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 360.196431] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 360.196437] warn_alloc_show_mem: 1 callbacks suppressed [ 360.196444] Mem-Info: [ 360.203730] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 360.209098] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 360.209098] active_file:17 inactive_file:17 isolated_file:0 [ 360.209098] unevictable:0 dirty:4 writeback:0 unstable:0 [ 360.209098] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 360.209098] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 360.209098] free:13550 free_pcp:124 free_cma:0 [ 360.211471] Call Trace: [ 360.220862] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 360.253906] [ 360.256495] 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 [ 360.284269] dump_stack+0x244/0x39d [ 360.286393] lowmem_reserve[]: 0 2818 6321 6321 [ 360.312525] ? dump_stack_print_info.cold.1+0x20/0x20 [ 360.316128] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 360.320712] warn_alloc.cold.116+0xb7/0x1bd [ 360.325864] lowmem_reserve[]: 0 0 3503 3503 [ 360.353197] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 360.357493] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 360.361811] ? lock_downgrade+0x900/0x900 [ 360.366622] lowmem_reserve[]: 0 0 0 0 [ 360.395528] ? trace_hardirqs_off+0xb8/0x310 [ 360.399652] 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 [ 360.403467] ? trace_hardirqs_off+0xb8/0x310 [ 360.407846] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 360.421376] __alloc_pages_slowpath+0x2651/0x2de0 [ 360.425756] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 360.440523] ? warn_alloc+0x120/0x120 [ 360.445329] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 360.460072] ? print_usage_bug+0xc0/0xc0 [ 360.463851] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 360.472678] ? warn_alloc+0x120/0x120 [ 360.476709] 1360 total pagecache pages [ 360.485283] ? warn_alloc+0x120/0x120 [ 360.489067] 0 pages in swap cache [ 360.492943] ? print_usage_bug+0xc0/0xc0 [ 360.496727] Swap cache stats: add 0, delete 0, find 0/0 [ 360.500177] ? kvm_clock_read+0x18/0x30 [ 360.504217] Free swap = 0kB [ 360.509595] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 360.513543] Total swap = 0kB [ 360.516556] ? print_usage_bug+0xc0/0xc0 [ 360.521544] 1965979 pages RAM [ 360.524561] ? __lock_acquire+0x62f/0x4c20 [ 360.528594] 0 pages HighMem/MovableOnly [ 360.531699] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 360.535910] 342854 pages reserved [ 360.539882] ? should_fail+0x22d/0xd01 [ 360.545396] 0 pages cma reserved [ 360.548842] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 360.552784] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 360.556069] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 360.561612] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 360.567847] ? __lock_acquire+0x62f/0x4c20 [ 360.572923] syz-fuzzer cpuset=/ mems_allowed=0 [ 360.583157] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 360.597044] ? __lock_acquire+0x62f/0x4c20 [ 360.601283] ? should_fail+0x22d/0xd01 [ 360.605170] ? rcu_irq_exit+0x1a2/0x390 [ 360.609158] ? mark_held_locks+0x130/0x130 [ 360.613406] ? mark_held_locks+0x130/0x130 [ 360.617650] ? mark_held_locks+0xc7/0x130 [ 360.621799] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 360.626822] ? zap_class+0x640/0x640 [ 360.630539] ? print_usage_bug+0xc0/0xc0 [ 360.634608] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 360.640176] ? check_preemption_disabled+0x48/0x280 [ 360.645206] ? __lock_is_held+0xb5/0x140 [ 360.649306] __alloc_pages_nodemask+0xad8/0xea0 [ 360.653980] ? zap_class+0x640/0x640 [ 360.657699] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 360.662742] ? find_held_lock+0x36/0x1c0 [ 360.666827] ? ____cache_alloc_node+0x1c7/0x1e0 [ 360.671527] ? lock_downgrade+0x900/0x900 [ 360.675705] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 360.681260] cache_grow_begin+0xa5/0x8c0 [ 360.685324] ? do_raw_spin_unlock+0xa7/0x330 [ 360.689743] fallback_alloc+0x204/0x2e0 [ 360.693730] ____cache_alloc_node+0x1c7/0x1e0 [ 360.698234] kmem_cache_alloc_node+0xe3/0x730 [ 360.702736] ? ipv6_get_ifaddr+0x42e/0x620 [ 360.707010] __alloc_skb+0x119/0x770 [ 360.710725] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 360.716009] ? netdev_alloc_frag+0x1f0/0x1f0 [ 360.720420] ? lock_downgrade+0x900/0x900 [ 360.724578] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 360.730127] ? refcount_sub_and_test_checked+0x203/0x310 [ 360.735585] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 360.741042] ? addrconf_rs_timer+0x690/0x690 [ 360.745464] ndisc_alloc_skb+0x144/0x340 [ 360.749532] ndisc_send_rs+0x331/0x6e0 [ 360.753446] addrconf_rs_timer+0x314/0x690 [ 360.757703] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 360.761954] call_timer_fn+0x272/0x920 [ 360.765841] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 360.770093] ? process_timeout+0x40/0x40 [ 360.774171] ? __run_timers+0x7da/0xc70 [ 360.778150] ? _raw_spin_unlock_irq+0x27/0x80 [ 360.782646] ? _raw_spin_unlock_irq+0x27/0x80 [ 360.787144] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 360.791386] ? lockdep_hardirqs_on+0x296/0x5b0 [ 360.795981] ? trace_hardirqs_on+0xbd/0x310 [ 360.800310] ? kasan_check_read+0x11/0x20 [ 360.804475] ? __run_timers+0x7da/0xc70 [ 360.808457] ? trace_hardirqs_off_caller+0x310/0x310 [ 360.813571] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 360.817811] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 360.822046] __run_timers+0x7e5/0xc70 [ 360.825868] ? timer_fixup_init+0x70/0x70 [ 360.830039] ? kasan_check_read+0x11/0x20 [ 360.834205] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 360.839486] ? rcu_softirq_qs+0x20/0x20 [ 360.843478] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 360.849019] ? check_preemption_disabled+0x48/0x280 [ 360.854043] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 360.858805] ? retint_kernel+0x2d/0x2d [ 360.862701] ? trace_hardirqs_on_caller+0xc0/0x310 [ 360.867633] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 360.872401] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 360.877875] ? zap_class+0x640/0x640 [ 360.881606] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 360.887148] ? check_preemption_disabled+0x48/0x280 [ 360.892178] ? __lock_is_held+0xb5/0x140 [ 360.896244] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 360.901785] ? check_preemption_disabled+0x48/0x280 [ 360.906810] run_timer_softirq+0x52/0xb0 [ 360.910873] ? rcu_read_lock_sched_held+0x14f/0x180 [ 360.915892] __do_softirq+0x308/0xb7e [ 360.919701] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 360.924199] ? lock_downgrade+0x900/0x900 [ 360.928361] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 360.933486] ? pvclock_read_flags+0x160/0x160 [ 360.938003] ? lapic_next_event+0x5a/0x90 [ 360.942172] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 360.947720] ? kvm_clock_read+0x18/0x30 [ 360.951913] ? kvm_sched_clock_read+0x9/0x20 [ 360.956324] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 360.961867] ? check_preemption_disabled+0x48/0x280 [ 360.966894] irq_exit+0x17f/0x1c0 [ 360.970355] smp_apic_timer_interrupt+0x1cb/0x760 [ 360.975220] ? smp_reschedule_interrupt+0x109/0x650 [ 360.980245] ? smp_call_function_single_interrupt+0x650/0x650 [ 360.986161] ? interrupt_entry+0xb5/0xc0 [ 360.990232] ? trace_hardirqs_off_caller+0xbb/0x310 [ 360.995253] ? trace_hardirqs_off_caller+0xbb/0x310 [ 361.000272] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 361.005128] ? trace_hardirqs_on_caller+0x310/0x310 [ 361.010156] ? trace_hardirqs_on_caller+0x310/0x310 [ 361.015189] ? task_prio+0x50/0x50 [ 361.018733] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 361.024308] ? check_preemption_disabled+0x48/0x280 [ 361.029335] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 361.034193] apic_timer_interrupt+0xf/0x20 [ 361.038428] [ 361.040673] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 361.045609] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 361.064529] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 361.072241] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 361.079722] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 361.086997] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 361.094266] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 361.101535] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 361.108861] skb_clone+0x1bb/0x500 [ 361.112421] ? skb_split+0x11e0/0x11e0 [ 361.116320] ? preempt_notifier_register+0x200/0x200 [ 361.121428] ? __switch_to_asm+0x34/0x70 [ 361.125488] ? __switch_to_asm+0x34/0x70 [ 361.129567] ? __switch_to_asm+0x40/0x70 [ 361.133643] ? __switch_to_asm+0x34/0x70 [ 361.137700] ? __switch_to_asm+0x40/0x70 [ 361.141764] ? __switch_to_asm+0x40/0x70 [ 361.145826] ? __switch_to_asm+0x34/0x70 [ 361.149886] ? __switch_to_asm+0x34/0x70 [ 361.153949] ? __switch_to_asm+0x40/0x70 [ 361.158007] ? __switch_to_asm+0x34/0x70 [ 361.162078] bpf_clone_redirect+0xb9/0x490 [ 361.166334] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 361.171355] ? __sched_text_start+0x8/0x8 [ 361.175513] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 361.180289] ? find_held_lock+0x36/0x1c0 [ 361.184359] ? lock_acquire+0x1ed/0x520 [ 361.188342] ? bpf_test_run+0x3ee/0x7a0 [ 361.192342] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 361.197881] ? check_preemption_disabled+0x48/0x280 [ 361.202906] ? kasan_check_read+0x11/0x20 [ 361.207058] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 361.212335] ? rcu_softirq_qs+0x20/0x20 [ 361.216340] ? preempt_schedule+0x4d/0x60 [ 361.220511] ? ___preempt_schedule+0x16/0x18 [ 361.224933] ? bpf_test_run+0x271/0x7a0 [ 361.228925] ? netlink_diag_dump+0x2a0/0x2a0 [ 361.233340] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 361.238877] ? bpf_test_init.isra.10+0x70/0x100 [ 361.243560] ? bpf_prog_test_run_skb+0x762/0xd60 [ 361.248324] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 361.253173] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 361.258726] ? fput+0x130/0x1a0 [ 361.262027] ? __bpf_prog_get+0x9b/0x290 [ 361.266092] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 361.270978] ? bpf_prog_test_run+0x130/0x1a0 [ 361.275409] ? __x64_sys_bpf+0x3d8/0x520 [ 361.279499] ? bpf_prog_get+0x20/0x20 [ 361.283339] ? do_syscall_64+0x1b9/0x820 [ 361.287447] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 361.292809] ? syscall_return_slowpath+0x5e0/0x5e0 [ 361.297739] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 361.302589] ? trace_hardirqs_on_caller+0x310/0x310 [ 361.307608] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 361.312629] ? prepare_exit_to_usermode+0x291/0x3b0 [ 361.317651] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 361.322506] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 361.327894] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 361.327973] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 361.334842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 361.334848] Call Trace: [ 361.334857] [ 361.334874] dump_stack+0x244/0x39d [ 361.334911] ? dump_stack_print_info.cold.1+0x20/0x20 [ 361.341474] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 361.350747] warn_alloc.cold.116+0xb7/0x1bd [ 361.353297] syz-executor4 cpuset=syz4 mems_allowed=0 [ 361.355455] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 361.388979] ? lock_downgrade+0x900/0x900 [ 361.393146] ? trace_hardirqs_off+0xb8/0x310 [ 361.397570] ? trace_hardirqs_off+0xb8/0x310 [ 361.401990] __alloc_pages_slowpath+0x2651/0x2de0 [ 361.406866] ? warn_alloc+0x120/0x120 [ 361.410691] ? print_usage_bug+0xc0/0xc0 [ 361.414754] ? warn_alloc+0x120/0x120 [ 361.418562] ? warn_alloc+0x120/0x120 [ 361.422366] ? print_usage_bug+0xc0/0xc0 [ 361.426447] ? kvm_clock_read+0x18/0x30 [ 361.430434] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 361.435471] ? print_usage_bug+0xc0/0xc0 [ 361.439560] ? __lock_acquire+0x62f/0x4c20 [ 361.443811] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 361.449355] ? should_fail+0x22d/0xd01 [ 361.453243] ? __lock_acquire+0x62f/0x4c20 [ 361.457483] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 361.462587] ? __lock_acquire+0x62f/0x4c20 [ 361.466828] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 361.471930] ? __lock_acquire+0x62f/0x4c20 [ 361.476164] ? should_fail+0x22d/0xd01 [ 361.480062] ? mark_held_locks+0x130/0x130 [ 361.484301] ? mark_held_locks+0x130/0x130 [ 361.488550] ? zap_class+0x640/0x640 [ 361.492277] ? print_usage_bug+0xc0/0xc0 [ 361.496346] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 361.501896] ? check_preemption_disabled+0x48/0x280 [ 361.506929] ? __lock_is_held+0xb5/0x140 [ 361.511001] __alloc_pages_nodemask+0xad8/0xea0 [ 361.515676] ? zap_class+0x640/0x640 [ 361.519400] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 361.524430] ? find_held_lock+0x36/0x1c0 [ 361.528502] ? ____cache_alloc_node+0x1c7/0x1e0 [ 361.533174] ? lock_downgrade+0x900/0x900 [ 361.537336] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 361.542887] cache_grow_begin+0xa5/0x8c0 [ 361.546951] ? do_raw_spin_unlock+0xa7/0x330 [ 361.551368] fallback_alloc+0x204/0x2e0 [ 361.555354] ____cache_alloc_node+0x1c7/0x1e0 [ 361.559863] kmem_cache_alloc_node+0xe3/0x730 [ 361.564369] ? ipv6_get_ifaddr+0x42e/0x620 [ 361.568617] __alloc_skb+0x119/0x770 [ 361.572347] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 361.577632] ? netdev_alloc_frag+0x1f0/0x1f0 [ 361.582047] ? lock_downgrade+0x900/0x900 [ 361.586207] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 361.591751] ? refcount_sub_and_test_checked+0x203/0x310 [ 361.597206] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 361.602660] ? addrconf_rs_timer+0x690/0x690 [ 361.607082] ndisc_alloc_skb+0x144/0x340 [ 361.611165] ndisc_send_rs+0x331/0x6e0 [ 361.615064] addrconf_rs_timer+0x314/0x690 [ 361.619310] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 361.623558] call_timer_fn+0x272/0x920 [ 361.627447] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 361.631682] ? process_timeout+0x40/0x40 [ 361.635757] ? mark_held_locks+0xc7/0x130 [ 361.639917] ? _raw_spin_unlock_irq+0x27/0x80 [ 361.644413] ? _raw_spin_unlock_irq+0x27/0x80 [ 361.648913] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 361.653156] ? lockdep_hardirqs_on+0x296/0x5b0 [ 361.657744] ? trace_hardirqs_on+0xbd/0x310 [ 361.662070] ? kasan_check_read+0x11/0x20 [ 361.666219] ? __run_timers+0x7da/0xc70 [ 361.670197] ? trace_hardirqs_off_caller+0x310/0x310 [ 361.675314] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 361.679549] __run_timers+0x7e5/0xc70 [ 361.683369] ? timer_fixup_init+0x70/0x70 [ 361.687537] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 361.692560] ? zap_class+0x640/0x640 [ 361.696283] ? print_usage_bug+0xc0/0xc0 [ 361.700348] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 361.705547] ? find_held_lock+0x36/0x1c0 [ 361.709613] ? zap_class+0x640/0x640 [ 361.713336] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 361.718878] ? check_preemption_disabled+0x48/0x280 [ 361.723915] ? __lock_is_held+0xb5/0x140 [ 361.727983] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 361.733526] ? check_preemption_disabled+0x48/0x280 [ 361.738551] run_timer_softirq+0x52/0xb0 [ 361.742621] ? rcu_read_lock_sched_held+0x14f/0x180 [ 361.747641] __do_softirq+0x308/0xb7e [ 361.751451] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 361.755948] ? lock_downgrade+0x900/0x900 [ 361.760119] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 361.765238] ? pvclock_read_flags+0x160/0x160 [ 361.769739] ? lapic_next_event+0x5a/0x90 [ 361.773898] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 361.779441] ? kvm_clock_read+0x18/0x30 [ 361.783416] ? kvm_sched_clock_read+0x9/0x20 [ 361.787829] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 361.793372] ? check_preemption_disabled+0x48/0x280 [ 361.798401] irq_exit+0x17f/0x1c0 [ 361.801863] smp_apic_timer_interrupt+0x1cb/0x760 [ 361.806710] ? smp_reschedule_interrupt+0x109/0x650 [ 361.811734] ? smp_call_function_single_interrupt+0x650/0x650 [ 361.817622] ? interrupt_entry+0xb5/0xc0 [ 361.821689] ? trace_hardirqs_off_caller+0xbb/0x310 [ 361.826713] ? trace_hardirqs_off_caller+0xbb/0x310 [ 361.831734] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 361.836581] ? trace_hardirqs_on_caller+0x310/0x310 [ 361.841598] ? trace_hardirqs_on_caller+0x310/0x310 [ 361.846621] ? task_prio+0x50/0x50 [ 361.850196] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 361.855742] ? check_preemption_disabled+0x48/0x280 [ 361.860771] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 361.865623] apic_timer_interrupt+0xf/0x20 [ 361.869854] [ 361.872104] RIP: 0010:lock_acquire+0x268/0x520 [ 361.876699] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 361.895638] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 361.903351] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 361.910621] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 361.917904] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 361.925178] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 361.932453] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 361.939784] ? lruvec_lru_size+0x450/0x450 [ 361.944023] ? kasan_check_read+0x11/0x20 [ 361.948180] ? lock_release+0xa00/0xa00 [ 361.952182] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 361.957135] down_read_trylock+0xda/0x140 [ 361.961287] ? shrink_slab+0x207/0x8c0 [ 361.965179] ? downgrade_write+0x270/0x270 [ 361.969428] shrink_slab+0x207/0x8c0 [ 361.973149] ? shrink_active_list+0x1f00/0x1f00 [ 361.977826] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 361.983457] ? __lock_acquire+0x62f/0x4c20 [ 361.987701] ? percpu_ref_get_many+0x240/0x240 [ 361.992303] ? print_usage_bug+0xc0/0xc0 [ 361.996391] shrink_node+0x431/0x16b0 [ 362.000194] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 362.005497] ? shrink_node_memcg+0x18f0/0x18f0 [ 362.010086] ? kvm_clock_read+0x18/0x30 [ 362.014092] ? ktime_get+0x2c1/0x400 [ 362.017820] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 362.022323] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 362.027863] ? __cpuset_node_allowed+0x19b/0x660 [ 362.032628] ? mark_held_locks+0x130/0x130 [ 362.036900] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 362.042617] ? zap_class+0x640/0x640 [ 362.046344] do_try_to_free_pages+0x3e7/0x1290 [ 362.050929] ? zap_class+0x640/0x640 [ 362.054662] ? shrink_node+0x16b0/0x16b0 [ 362.058726] ? __lock_is_held+0xb5/0x140 [ 362.062803] try_to_free_pages+0x4d0/0xb90 [ 362.067043] ? do_try_to_free_pages+0x1290/0x1290 [ 362.071913] ? lock_acquire+0x1ed/0x520 [ 362.075916] ? set_page_refcounted+0x280/0x280 [ 362.080511] ? lock_release+0xa00/0xa00 [ 362.084501] ? _raw_spin_unlock_irq+0x60/0x80 [ 362.089002] ? psi_memstall_enter+0x240/0x2b0 [ 362.093500] ? psi_memstall_tick+0x230/0x230 [ 362.097943] __alloc_pages_slowpath+0xa48/0x2de0 [ 362.102727] ? warn_alloc+0x120/0x120 [ 362.106529] ? mark_held_locks+0x130/0x130 [ 362.110773] ? find_get_entry+0xaae/0x1120 [ 362.115017] ? filemap_map_pages+0x1a20/0x1a20 [ 362.119610] ? zap_class+0x640/0x640 [ 362.123335] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 362.128894] ? check_preemption_disabled+0x48/0x280 [ 362.133917] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 362.139457] ? should_fail+0x22d/0xd01 [ 362.143549] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 362.148658] ? zap_class+0x640/0x640 [ 362.152419] ? __lock_is_held+0xb5/0x140 [ 362.156494] ? mark_held_locks+0x130/0x130 [ 362.160743] ? lock_release+0xa00/0xa00 [ 362.164718] ? perf_trace_sched_process_exec+0x860/0x860 [ 362.170172] ? xa_load+0x2ba/0x460 [ 362.173717] ? lock_downgrade+0x900/0x900 [ 362.177871] ? __might_sleep+0x95/0x190 [ 362.181858] __alloc_pages_nodemask+0xad8/0xea0 [ 362.186542] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 362.191565] ? __page_cache_alloc+0x191/0x5c0 [ 362.196062] ? xa_load+0x2e1/0x460 [ 362.199610] ? xa_clear_mark+0x40/0x40 [ 362.203501] ? zap_class+0x640/0x640 [ 362.207223] ? zap_class+0x640/0x640 [ 362.210937] ? zap_class+0x640/0x640 [ 362.214656] ? __do_page_cache_readahead+0x663/0x810 [ 362.219767] ? find_held_lock+0x36/0x1c0 [ 362.223841] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 362.229386] alloc_pages_current+0x173/0x350 [ 362.233809] __page_cache_alloc+0x38c/0x5c0 [ 362.238140] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 362.243076] ? kasan_check_read+0x11/0x20 [ 362.247246] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 362.252530] ? generic_perform_write+0x6a0/0x6a0 [ 362.257293] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 362.262847] ? check_preemption_disabled+0x48/0x280 [ 362.267872] filemap_fault+0x1595/0x25f0 [ 362.271954] ? __lock_page_or_retry+0xa00/0xa00 [ 362.276628] ? mark_held_locks+0x130/0x130 [ 362.280878] ? filemap_map_pages+0xd6b/0x1a20 [ 362.285381] ? lock_downgrade+0x900/0x900 [ 362.289534] ? check_preemption_disabled+0x48/0x280 [ 362.294551] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 362.299483] ? kasan_check_read+0x11/0x20 [ 362.303628] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 362.308910] ? rcu_softirq_qs+0x20/0x20 [ 362.312908] ? filemap_map_pages+0xd92/0x1a20 [ 362.317425] ? find_get_entries_tag+0x1400/0x1400 [ 362.322275] ? debug_object_destroy+0x2b0/0x2b0 [ 362.326963] ? lock_pi_update_atomic+0x150/0x150 [ 362.331721] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 362.337278] ? lock_acquire+0x1ed/0x520 [ 362.341252] ? ext4_filemap_fault+0x7a/0xad [ 362.345585] ? lock_release+0xa00/0xa00 [ 362.349559] ? perf_trace_sched_process_exec+0x860/0x860 [ 362.355013] ? print_usage_bug+0xc0/0xc0 [ 362.359077] ? print_usage_bug+0xc0/0xc0 [ 362.363161] ? down_read+0x8d/0x120 [ 362.366790] ? ext4_filemap_fault+0x7a/0xad [ 362.371119] ? __down_interruptible+0x700/0x700 [ 362.375802] ext4_filemap_fault+0x82/0xad [ 362.379960] __do_fault+0x100/0x6b0 [ 362.383588] ? find_held_lock+0x36/0x1c0 [ 362.387651] ? pmd_devmap_trans_unstable+0x220/0x220 [ 362.392774] ? mark_held_locks+0x130/0x130 [ 362.397012] ? mark_held_locks+0x130/0x130 [ 362.401303] ? kasan_check_read+0x11/0x20 [ 362.405458] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 362.411004] __handle_mm_fault+0x3ea0/0x5be0 [ 362.415416] ? perf_trace_lock+0x7a0/0x7a0 [ 362.419660] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 362.424517] ? __switch_to_asm+0x34/0x70 [ 362.428581] ? __switch_to_asm+0x34/0x70 [ 362.432659] ? zap_class+0x640/0x640 [ 362.436375] ? zap_class+0x640/0x640 [ 362.440088] ? __x64_sys_futex+0x53e/0x6a0 [ 362.444345] ? find_held_lock+0x36/0x1c0 [ 362.448419] ? handle_mm_fault+0x42a/0xc70 [ 362.452658] ? lock_downgrade+0x900/0x900 [ 362.456817] ? check_preemption_disabled+0x48/0x280 [ 362.461841] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 362.466771] ? kasan_check_read+0x11/0x20 [ 362.470929] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 362.476206] ? rcu_softirq_qs+0x20/0x20 [ 362.480183] ? trace_hardirqs_off_caller+0x310/0x310 [ 362.485293] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 362.490831] ? sync_mm_rss+0x9a/0x1c0 [ 362.494639] handle_mm_fault+0x54f/0xc70 [ 362.498711] ? __handle_mm_fault+0x5be0/0x5be0 [ 362.503303] ? find_vma+0x34/0x190 [ 362.506862] __do_page_fault+0x5e8/0xe60 [ 362.510948] ? trace_hardirqs_off+0xb8/0x310 [ 362.515370] do_page_fault+0xf2/0x7e0 [ 362.519179] ? vmalloc_sync_all+0x30/0x30 [ 362.523329] ? error_entry+0x70/0xd0 [ 362.527050] ? trace_hardirqs_off_caller+0xbb/0x310 [ 362.532065] ? trace_hardirqs_on_caller+0xc0/0x310 [ 362.536998] ? syscall_return_slowpath+0x5e0/0x5e0 [ 362.541928] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 362.546777] ? trace_hardirqs_on_caller+0x310/0x310 [ 362.551805] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 362.557264] ? prepare_exit_to_usermode+0x291/0x3b0 [ 362.562289] ? page_fault+0x8/0x30 [ 362.565835] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 362.570681] ? page_fault+0x8/0x30 [ 362.574226] page_fault+0x1e/0x30 [ 362.577679] RIP: 0033:0x45ddf3 [ 362.580890] Code: Bad RIP value. [ 362.584253] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 362.589617] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 362.596898] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 362.604181] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 362.611450] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 362.618724] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 362.626025] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 362.626030] warn_alloc_show_mem: 1 callbacks suppressed [ 362.626037] Mem-Info: [ 362.633340] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 362.638711] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 362.638711] active_file:17 inactive_file:17 isolated_file:0 [ 362.638711] unevictable:0 dirty:4 writeback:0 unstable:0 [ 362.638711] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 362.638711] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 362.638711] free:13550 free_pcp:124 free_cma:0 [ 362.641081] Call Trace: [ 362.650470] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 362.683507] [ 362.686087] 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 [ 362.713872] dump_stack+0x244/0x39d [ 362.715997] lowmem_reserve[]: 0 2818 6321 6321 [ 362.742134] ? dump_stack_print_info.cold.1+0x20/0x20 [ 362.745738] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 362.750321] warn_alloc.cold.116+0xb7/0x1bd [ 362.755480] lowmem_reserve[]: 0 0 3503 3503 [ 362.782835] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 362.787139] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 362.791491] ? lock_downgrade+0x900/0x900 [ 362.796304] lowmem_reserve[]: 0 0 0 0 [ 362.825218] ? trace_hardirqs_off+0xb8/0x310 [ 362.829343] 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 [ 362.833145] ? trace_hardirqs_off+0xb8/0x310 [ 362.837528] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 362.851074] __alloc_pages_slowpath+0x2651/0x2de0 [ 362.855453] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 362.870220] ? warn_alloc+0x120/0x120 [ 362.875022] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 362.889756] ? print_usage_bug+0xc0/0xc0 [ 362.893533] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 362.902376] ? warn_alloc+0x120/0x120 [ 362.906410] 1360 total pagecache pages [ 362.914979] ? warn_alloc+0x120/0x120 [ 362.918766] 0 pages in swap cache [ 362.922643] ? print_usage_bug+0xc0/0xc0 [ 362.926418] Swap cache stats: add 0, delete 0, find 0/0 [ 362.929864] ? kvm_clock_read+0x18/0x30 [ 362.933910] Free swap = 0kB [ 362.933918] Total swap = 0kB [ 362.939278] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 362.943222] 1965979 pages RAM [ 362.946247] ? print_usage_bug+0xc0/0xc0 [ 362.949398] 0 pages HighMem/MovableOnly [ 362.949407] 342854 pages reserved [ 362.954427] ? __lock_acquire+0x62f/0x4c20 [ 362.957529] 0 pages cma reserved [ 362.961584] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 362.965621] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 362.969003] ? should_fail+0x22d/0xd01 [ 362.973348] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 362.976575] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 362.982085] syz-fuzzer cpuset=/ mems_allowed=0 [ 362.988594] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 363.017625] ? __lock_acquire+0x62f/0x4c20 [ 363.021869] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 363.026973] ? __lock_acquire+0x62f/0x4c20 [ 363.031208] ? should_fail+0x22d/0xd01 [ 363.035094] ? rcu_irq_exit+0x1a2/0x390 [ 363.039095] ? mark_held_locks+0x130/0x130 [ 363.043350] ? mark_held_locks+0x130/0x130 [ 363.047599] ? mark_held_locks+0xc7/0x130 [ 363.051750] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 363.056770] ? zap_class+0x640/0x640 [ 363.060499] ? print_usage_bug+0xc0/0xc0 [ 363.064571] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 363.070123] ? check_preemption_disabled+0x48/0x280 [ 363.075157] ? __lock_is_held+0xb5/0x140 [ 363.079234] __alloc_pages_nodemask+0xad8/0xea0 [ 363.084022] ? zap_class+0x640/0x640 [ 363.087742] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 363.092769] ? find_held_lock+0x36/0x1c0 [ 363.096841] ? ____cache_alloc_node+0x1c7/0x1e0 [ 363.101510] ? lock_downgrade+0x900/0x900 [ 363.105672] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 363.111214] cache_grow_begin+0xa5/0x8c0 [ 363.115282] ? do_raw_spin_unlock+0xa7/0x330 [ 363.119700] fallback_alloc+0x204/0x2e0 [ 363.123687] ____cache_alloc_node+0x1c7/0x1e0 [ 363.128189] kmem_cache_alloc_node+0xe3/0x730 [ 363.132691] ? ipv6_get_ifaddr+0x42e/0x620 [ 363.136968] __alloc_skb+0x119/0x770 [ 363.140689] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 363.145974] ? netdev_alloc_frag+0x1f0/0x1f0 [ 363.150396] ? lock_downgrade+0x900/0x900 [ 363.154553] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 363.160093] ? refcount_sub_and_test_checked+0x203/0x310 [ 363.165568] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 363.171022] ? addrconf_rs_timer+0x690/0x690 [ 363.175450] ndisc_alloc_skb+0x144/0x340 [ 363.179517] ndisc_send_rs+0x331/0x6e0 [ 363.183415] addrconf_rs_timer+0x314/0x690 [ 363.187674] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 363.191917] call_timer_fn+0x272/0x920 [ 363.195817] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 363.200095] ? process_timeout+0x40/0x40 [ 363.204173] ? __run_timers+0x7da/0xc70 [ 363.208152] ? _raw_spin_unlock_irq+0x27/0x80 [ 363.212649] ? _raw_spin_unlock_irq+0x27/0x80 [ 363.217148] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 363.221391] ? lockdep_hardirqs_on+0x296/0x5b0 [ 363.225977] ? trace_hardirqs_on+0xbd/0x310 [ 363.230304] ? kasan_check_read+0x11/0x20 [ 363.234473] ? __run_timers+0x7da/0xc70 [ 363.238451] ? trace_hardirqs_off_caller+0x310/0x310 [ 363.243566] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 363.247817] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 363.252057] __run_timers+0x7e5/0xc70 [ 363.255872] ? timer_fixup_init+0x70/0x70 [ 363.260027] ? kasan_check_read+0x11/0x20 [ 363.264180] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 363.269458] ? rcu_softirq_qs+0x20/0x20 [ 363.273437] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 363.278994] ? check_preemption_disabled+0x48/0x280 [ 363.284021] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 363.288801] ? retint_kernel+0x2d/0x2d [ 363.292691] ? trace_hardirqs_on_caller+0xc0/0x310 [ 363.297625] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 363.302416] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 363.307873] ? zap_class+0x640/0x640 [ 363.311606] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 363.317155] ? check_preemption_disabled+0x48/0x280 [ 363.322191] ? __lock_is_held+0xb5/0x140 [ 363.326255] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 363.331798] ? check_preemption_disabled+0x48/0x280 [ 363.336819] run_timer_softirq+0x52/0xb0 [ 363.340901] ? rcu_read_lock_sched_held+0x14f/0x180 [ 363.345931] __do_softirq+0x308/0xb7e [ 363.349741] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 363.354237] ? lock_downgrade+0x900/0x900 [ 363.358406] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 363.363531] ? pvclock_read_flags+0x160/0x160 [ 363.368033] ? lapic_next_event+0x5a/0x90 [ 363.372201] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 363.377744] ? kvm_clock_read+0x18/0x30 [ 363.381728] ? kvm_sched_clock_read+0x9/0x20 [ 363.386160] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 363.391702] ? check_preemption_disabled+0x48/0x280 [ 363.396751] irq_exit+0x17f/0x1c0 [ 363.400215] smp_apic_timer_interrupt+0x1cb/0x760 [ 363.405059] ? smp_reschedule_interrupt+0x109/0x650 [ 363.410085] ? smp_call_function_single_interrupt+0x650/0x650 [ 363.415982] ? interrupt_entry+0xb5/0xc0 [ 363.420048] ? trace_hardirqs_off_caller+0xbb/0x310 [ 363.425080] ? trace_hardirqs_off_caller+0xbb/0x310 [ 363.430107] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 363.434964] ? trace_hardirqs_on_caller+0x310/0x310 [ 363.439981] ? trace_hardirqs_on_caller+0x310/0x310 [ 363.445003] ? task_prio+0x50/0x50 [ 363.448548] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 363.454089] ? check_preemption_disabled+0x48/0x280 [ 363.459134] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 363.463993] apic_timer_interrupt+0xf/0x20 [ 363.468222] [ 363.470465] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 363.475401] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 363.494309] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 363.502021] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 363.509293] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 363.516586] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 363.523852] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 363.531129] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 363.538453] skb_clone+0x1bb/0x500 [ 363.542000] ? skb_split+0x11e0/0x11e0 [ 363.545894] ? preempt_notifier_register+0x200/0x200 [ 363.551005] ? __switch_to_asm+0x34/0x70 [ 363.555069] ? __switch_to_asm+0x34/0x70 [ 363.559136] ? __switch_to_asm+0x40/0x70 [ 363.563195] ? __switch_to_asm+0x34/0x70 [ 363.567258] ? __switch_to_asm+0x40/0x70 [ 363.571337] ? __switch_to_asm+0x40/0x70 [ 363.575404] ? __switch_to_asm+0x34/0x70 [ 363.579480] ? __switch_to_asm+0x34/0x70 [ 363.583537] ? __switch_to_asm+0x40/0x70 [ 363.587611] ? __switch_to_asm+0x34/0x70 [ 363.591682] bpf_clone_redirect+0xb9/0x490 [ 363.595929] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 363.600947] ? __sched_text_start+0x8/0x8 [ 363.605097] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 363.609872] ? find_held_lock+0x36/0x1c0 [ 363.613942] ? lock_acquire+0x1ed/0x520 [ 363.617917] ? bpf_test_run+0x3ee/0x7a0 [ 363.621903] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 363.627452] ? check_preemption_disabled+0x48/0x280 [ 363.632480] ? kasan_check_read+0x11/0x20 [ 363.636630] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 363.641905] ? rcu_softirq_qs+0x20/0x20 [ 363.645896] ? preempt_schedule+0x4d/0x60 [ 363.650049] ? ___preempt_schedule+0x16/0x18 [ 363.654487] ? bpf_test_run+0x271/0x7a0 [ 363.658483] ? netlink_diag_dump+0x2a0/0x2a0 [ 363.662896] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 363.668471] ? bpf_test_init.isra.10+0x70/0x100 [ 363.673156] ? bpf_prog_test_run_skb+0x762/0xd60 [ 363.677922] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 363.682776] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 363.688325] ? fput+0x130/0x1a0 [ 363.691624] ? __bpf_prog_get+0x9b/0x290 [ 363.695700] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 363.700546] ? bpf_prog_test_run+0x130/0x1a0 [ 363.704960] ? __x64_sys_bpf+0x3d8/0x520 [ 363.709027] ? bpf_prog_get+0x20/0x20 [ 363.712849] ? do_syscall_64+0x1b9/0x820 [ 363.716926] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 363.722298] ? syscall_return_slowpath+0x5e0/0x5e0 [ 363.727228] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 363.732074] ? trace_hardirqs_on_caller+0x310/0x310 [ 363.737092] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 363.742126] ? prepare_exit_to_usermode+0x291/0x3b0 [ 363.747152] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 363.752006] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 363.757392] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 363.757484] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 363.764329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 363.764335] Call Trace: [ 363.764342] [ 363.764359] dump_stack+0x244/0x39d [ 363.764378] ? dump_stack_print_info.cold.1+0x20/0x20 [ 363.764405] warn_alloc.cold.116+0xb7/0x1bd [ 363.770980] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 363.780238] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 363.782796] syz-executor4 cpuset=syz4 mems_allowed=0 [ 363.784947] ? lock_downgrade+0x900/0x900 [ 363.822595] ? trace_hardirqs_off+0xb8/0x310 [ 363.827013] ? trace_hardirqs_off+0xb8/0x310 [ 363.831441] __alloc_pages_slowpath+0x2651/0x2de0 [ 363.836325] ? warn_alloc+0x120/0x120 [ 363.840151] ? warn_alloc+0x120/0x120 [ 363.843956] ? zap_class+0x640/0x640 [ 363.847670] ? warn_alloc+0x120/0x120 [ 363.851482] ? print_usage_bug+0xc0/0xc0 [ 363.855550] ? print_usage_bug+0xc0/0xc0 [ 363.859614] ? __lock_is_held+0xb5/0x140 [ 363.863698] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 363.869242] ? should_fail+0x22d/0xd01 [ 363.873140] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 363.878248] ? __lock_acquire+0x62f/0x4c20 [ 363.882488] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 363.887590] ? __lock_acquire+0x62f/0x4c20 [ 363.891825] ? should_fail+0x22d/0xd01 [ 363.895729] ? mark_held_locks+0x130/0x130 [ 363.899995] ? mark_held_locks+0x130/0x130 [ 363.904234] ? __enqueue_entity+0x10d/0x1f0 [ 363.908572] ? zap_class+0x640/0x640 [ 363.912290] ? print_usage_bug+0xc0/0xc0 [ 363.916358] ? __lock_acquire+0x62f/0x4c20 [ 363.920600] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 363.926146] ? check_preemption_disabled+0x48/0x280 [ 363.931179] ? __lock_is_held+0xb5/0x140 [ 363.935265] __alloc_pages_nodemask+0xad8/0xea0 [ 363.939938] ? zap_class+0x640/0x640 [ 363.943659] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 363.948690] ? find_held_lock+0x36/0x1c0 [ 363.952776] ? ____cache_alloc_node+0x1c7/0x1e0 [ 363.957450] ? lock_downgrade+0x900/0x900 [ 363.961621] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 363.967175] cache_grow_begin+0xa5/0x8c0 [ 363.971249] ? do_raw_spin_unlock+0xa7/0x330 [ 363.975696] fallback_alloc+0x204/0x2e0 [ 363.979676] ____cache_alloc_node+0x1c7/0x1e0 [ 363.984180] kmem_cache_alloc_node+0xe3/0x730 [ 363.988681] ? ipv6_get_ifaddr+0x42e/0x620 [ 363.992932] __alloc_skb+0x119/0x770 [ 363.996645] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 364.001933] ? netdev_alloc_frag+0x1f0/0x1f0 [ 364.006346] ? lock_downgrade+0x900/0x900 [ 364.010519] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 364.016063] ? refcount_sub_and_test_checked+0x203/0x310 [ 364.021529] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 364.026998] ? addrconf_rs_timer+0x690/0x690 [ 364.031439] ndisc_alloc_skb+0x144/0x340 [ 364.035513] ndisc_send_rs+0x331/0x6e0 [ 364.039405] addrconf_rs_timer+0x314/0x690 [ 364.043664] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 364.047916] call_timer_fn+0x272/0x920 [ 364.051806] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 364.056039] ? process_timeout+0x40/0x40 [ 364.060147] ? mark_held_locks+0xc7/0x130 [ 364.064302] ? _raw_spin_unlock_irq+0x27/0x80 [ 364.068826] ? _raw_spin_unlock_irq+0x27/0x80 [ 364.073326] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 364.077564] ? lockdep_hardirqs_on+0x296/0x5b0 [ 364.082179] ? trace_hardirqs_on+0xbd/0x310 [ 364.086503] ? kasan_check_read+0x11/0x20 [ 364.090657] ? __run_timers+0x7da/0xc70 [ 364.094670] ? trace_hardirqs_off_caller+0x310/0x310 [ 364.099793] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 364.104028] __run_timers+0x7e5/0xc70 [ 364.107839] ? timer_fixup_init+0x70/0x70 [ 364.111988] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 364.117022] ? zap_class+0x640/0x640 [ 364.120750] ? print_usage_bug+0xc0/0xc0 [ 364.124831] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 364.130028] ? find_held_lock+0x36/0x1c0 [ 364.134094] ? zap_class+0x640/0x640 [ 364.137836] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 364.143380] ? check_preemption_disabled+0x48/0x280 [ 364.148411] ? __lock_is_held+0xb5/0x140 [ 364.152491] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 364.158031] ? check_preemption_disabled+0x48/0x280 [ 364.163056] run_timer_softirq+0x52/0xb0 [ 364.167130] ? rcu_read_lock_sched_held+0x14f/0x180 [ 364.172150] __do_softirq+0x308/0xb7e [ 364.175953] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 364.180453] ? lock_downgrade+0x900/0x900 [ 364.184611] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 364.189723] ? pvclock_read_flags+0x160/0x160 [ 364.194225] ? lapic_next_event+0x5a/0x90 [ 364.198378] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 364.203926] ? kvm_clock_read+0x18/0x30 [ 364.207920] ? kvm_sched_clock_read+0x9/0x20 [ 364.212349] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 364.217909] ? check_preemption_disabled+0x48/0x280 [ 364.222938] irq_exit+0x17f/0x1c0 [ 364.226396] smp_apic_timer_interrupt+0x1cb/0x760 [ 364.231246] ? smp_reschedule_interrupt+0x109/0x650 [ 364.236268] ? smp_call_function_single_interrupt+0x650/0x650 [ 364.242152] ? interrupt_entry+0xb5/0xc0 [ 364.246219] ? trace_hardirqs_off_caller+0xbb/0x310 [ 364.251251] ? trace_hardirqs_off_caller+0xbb/0x310 [ 364.256278] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 364.261132] ? trace_hardirqs_on_caller+0x310/0x310 [ 364.266151] ? trace_hardirqs_on_caller+0x310/0x310 [ 364.271171] ? task_prio+0x50/0x50 [ 364.274716] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 364.280265] ? check_preemption_disabled+0x48/0x280 [ 364.285305] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 364.290162] apic_timer_interrupt+0xf/0x20 [ 364.294413] [ 364.296655] RIP: 0010:lock_acquire+0x268/0x520 [ 364.301238] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 364.320152] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 364.327867] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 364.335144] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 364.342414] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 364.349716] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 364.356992] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 364.364303] ? lruvec_lru_size+0x450/0x450 [ 364.368553] ? kasan_check_read+0x11/0x20 [ 364.372709] ? lock_release+0xa00/0xa00 [ 364.376696] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 364.381654] down_read_trylock+0xda/0x140 [ 364.385807] ? shrink_slab+0x207/0x8c0 [ 364.389694] ? downgrade_write+0x270/0x270 [ 364.393939] shrink_slab+0x207/0x8c0 [ 364.397655] ? shrink_active_list+0x1f00/0x1f00 [ 364.402346] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 364.407973] ? __lock_acquire+0x62f/0x4c20 [ 364.412215] ? percpu_ref_get_many+0x240/0x240 [ 364.416816] ? print_usage_bug+0xc0/0xc0 [ 364.420890] shrink_node+0x431/0x16b0 [ 364.424697] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 364.430012] ? shrink_node_memcg+0x18f0/0x18f0 [ 364.434604] ? kvm_clock_read+0x18/0x30 [ 364.438581] ? ktime_get+0x2c1/0x400 [ 364.442303] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 364.446815] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 364.452358] ? __cpuset_node_allowed+0x19b/0x660 [ 364.457130] ? mark_held_locks+0x130/0x130 [ 364.461369] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 364.467084] ? zap_class+0x640/0x640 [ 364.470831] do_try_to_free_pages+0x3e7/0x1290 [ 364.475415] ? zap_class+0x640/0x640 [ 364.479155] ? shrink_node+0x16b0/0x16b0 [ 364.483218] ? __lock_is_held+0xb5/0x140 [ 364.487293] try_to_free_pages+0x4d0/0xb90 [ 364.491536] ? do_try_to_free_pages+0x1290/0x1290 [ 364.496394] ? lock_acquire+0x1ed/0x520 [ 364.500370] ? set_page_refcounted+0x280/0x280 [ 364.504958] ? lock_release+0xa00/0xa00 [ 364.508937] ? _raw_spin_unlock_irq+0x60/0x80 [ 364.513433] ? psi_memstall_enter+0x240/0x2b0 [ 364.517930] ? psi_memstall_tick+0x230/0x230 [ 364.522353] __alloc_pages_slowpath+0xa48/0x2de0 [ 364.527148] ? warn_alloc+0x120/0x120 [ 364.530954] ? mark_held_locks+0x130/0x130 [ 364.535200] ? find_get_entry+0xaae/0x1120 [ 364.539443] ? filemap_map_pages+0x1a20/0x1a20 [ 364.544030] ? zap_class+0x640/0x640 [ 364.547755] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 364.553297] ? check_preemption_disabled+0x48/0x280 [ 364.558317] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 364.563860] ? should_fail+0x22d/0xd01 [ 364.567760] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 364.572869] ? zap_class+0x640/0x640 [ 364.576617] ? __lock_is_held+0xb5/0x140 [ 364.580695] ? mark_held_locks+0x130/0x130 [ 364.584938] ? lock_release+0xa00/0xa00 [ 364.588924] ? perf_trace_sched_process_exec+0x860/0x860 [ 364.594394] ? xa_load+0x2ba/0x460 [ 364.597941] ? lock_downgrade+0x900/0x900 [ 364.602094] ? __might_sleep+0x95/0x190 [ 364.606089] __alloc_pages_nodemask+0xad8/0xea0 [ 364.610775] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 364.615796] ? __page_cache_alloc+0x191/0x5c0 [ 364.620293] ? xa_load+0x2e1/0x460 [ 364.623840] ? xa_clear_mark+0x40/0x40 [ 364.627735] ? zap_class+0x640/0x640 [ 364.631462] ? zap_class+0x640/0x640 [ 364.635180] ? zap_class+0x640/0x640 [ 364.638901] ? __do_page_cache_readahead+0x663/0x810 [ 364.644015] ? find_held_lock+0x36/0x1c0 [ 364.648086] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 364.653648] alloc_pages_current+0x173/0x350 [ 364.658070] __page_cache_alloc+0x38c/0x5c0 [ 364.662392] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 364.667329] ? kasan_check_read+0x11/0x20 [ 364.671480] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 364.676768] ? generic_perform_write+0x6a0/0x6a0 [ 364.681529] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 364.687072] ? check_preemption_disabled+0x48/0x280 [ 364.692098] filemap_fault+0x1595/0x25f0 [ 364.696203] ? __lock_page_or_retry+0xa00/0xa00 [ 364.700879] ? mark_held_locks+0x130/0x130 [ 364.705157] ? filemap_map_pages+0xd6b/0x1a20 [ 364.709657] ? lock_downgrade+0x900/0x900 [ 364.713824] ? check_preemption_disabled+0x48/0x280 [ 364.718843] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 364.723775] ? kasan_check_read+0x11/0x20 [ 364.727924] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 364.733202] ? rcu_softirq_qs+0x20/0x20 [ 364.737193] ? filemap_map_pages+0xd92/0x1a20 [ 364.741707] ? find_get_entries_tag+0x1400/0x1400 [ 364.746556] ? debug_object_destroy+0x2b0/0x2b0 [ 364.751249] ? lock_pi_update_atomic+0x150/0x150 [ 364.756009] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 364.761576] ? lock_acquire+0x1ed/0x520 [ 364.765553] ? ext4_filemap_fault+0x7a/0xad [ 364.769888] ? lock_release+0xa00/0xa00 [ 364.773896] ? perf_trace_sched_process_exec+0x860/0x860 [ 364.779353] ? print_usage_bug+0xc0/0xc0 [ 364.783423] ? print_usage_bug+0xc0/0xc0 [ 364.787497] ? down_read+0x8d/0x120 [ 364.791131] ? ext4_filemap_fault+0x7a/0xad [ 364.795461] ? __down_interruptible+0x700/0x700 [ 364.800147] ext4_filemap_fault+0x82/0xad [ 364.804306] __do_fault+0x100/0x6b0 [ 364.807940] ? find_held_lock+0x36/0x1c0 [ 364.812010] ? pmd_devmap_trans_unstable+0x220/0x220 [ 364.817134] ? mark_held_locks+0x130/0x130 [ 364.821373] ? mark_held_locks+0x130/0x130 [ 364.825621] ? kasan_check_read+0x11/0x20 [ 364.829771] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 364.835316] __handle_mm_fault+0x3ea0/0x5be0 [ 364.839726] ? perf_trace_lock+0x7a0/0x7a0 [ 364.843975] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 364.848838] ? __switch_to_asm+0x34/0x70 [ 364.852905] ? __switch_to_asm+0x34/0x70 [ 364.856997] ? zap_class+0x640/0x640 [ 364.860711] ? zap_class+0x640/0x640 [ 364.864427] ? __x64_sys_futex+0x53e/0x6a0 [ 364.868668] ? find_held_lock+0x36/0x1c0 [ 364.872743] ? handle_mm_fault+0x42a/0xc70 [ 364.876983] ? lock_downgrade+0x900/0x900 [ 364.881143] ? check_preemption_disabled+0x48/0x280 [ 364.886167] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 364.891135] ? kasan_check_read+0x11/0x20 [ 364.895283] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 364.900563] ? rcu_softirq_qs+0x20/0x20 [ 364.904544] ? trace_hardirqs_off_caller+0x310/0x310 [ 364.909658] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 364.915251] ? sync_mm_rss+0x9a/0x1c0 [ 364.919056] handle_mm_fault+0x54f/0xc70 [ 364.923140] ? __handle_mm_fault+0x5be0/0x5be0 [ 364.927747] ? find_vma+0x34/0x190 [ 364.931308] __do_page_fault+0x5e8/0xe60 [ 364.935374] ? trace_hardirqs_off+0xb8/0x310 [ 364.939794] do_page_fault+0xf2/0x7e0 [ 364.943611] ? vmalloc_sync_all+0x30/0x30 [ 364.947762] ? error_entry+0x70/0xd0 [ 364.951646] ? trace_hardirqs_off_caller+0xbb/0x310 [ 364.956663] ? trace_hardirqs_on_caller+0xc0/0x310 [ 364.961594] ? syscall_return_slowpath+0x5e0/0x5e0 [ 364.966523] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 364.971380] ? trace_hardirqs_on_caller+0x310/0x310 [ 364.976419] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 364.981870] ? prepare_exit_to_usermode+0x291/0x3b0 [ 364.986904] ? page_fault+0x8/0x30 [ 364.990442] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 364.995296] ? page_fault+0x8/0x30 [ 364.998831] page_fault+0x1e/0x30 [ 365.002279] RIP: 0033:0x45ddf3 [ 365.005482] Code: Bad RIP value. [ 365.008842] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 365.014202] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 365.021474] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 365.028739] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 365.036007] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 365.043278] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 365.050563] warn_alloc_show_mem: 1 callbacks suppressed [ 365.050575] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 365.050577] Mem-Info: [ 365.050606] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 365.050606] active_file:17 inactive_file:17 isolated_file:0 [ 365.050606] unevictable:0 dirty:4 writeback:0 unstable:0 [ 365.050606] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 365.050606] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 365.050606] free:13550 free_pcp:124 free_cma:0 [ 365.055949] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 365.063223] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 365.065621] Call Trace: [ 365.099174] 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 [ 365.108531] [ 365.136272] lowmem_reserve[]: 0 2818 6321 6321 [ 365.138865] dump_stack+0x244/0x39d [ 365.164942] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 365.167101] ? dump_stack_print_info.cold.1+0x20/0x20 [ 365.171643] lowmem_reserve[]: 0 0 3503 3503 [ 365.175295] warn_alloc.cold.116+0xb7/0x1bd [ 365.202591] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 365.207793] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 365.212085] lowmem_reserve[]: 0 0 0 0 [ 365.216413] ? lock_downgrade+0x900/0x900 [ 365.245275] 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 [ 365.250127] ? trace_hardirqs_off+0xb8/0x310 [ 365.253897] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 365.258057] ? trace_hardirqs_off+0xb8/0x310 [ 365.271589] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 365.276010] __alloc_pages_slowpath+0x2651/0x2de0 [ 365.290723] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 365.295148] ? warn_alloc+0x120/0x120 [ 365.309843] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 365.314684] ? print_usage_bug+0xc0/0xc0 [ 365.323601] 1360 total pagecache pages [ 365.327400] ? warn_alloc+0x120/0x120 [ 365.335950] 0 pages in swap cache [ 365.340006] ? warn_alloc+0x120/0x120 [ 365.343865] Swap cache stats: add 0, delete 0, find 0/0 [ 365.347659] ? print_usage_bug+0xc0/0xc0 [ 365.351083] Free swap = 0kB [ 365.354891] ? kvm_clock_read+0x18/0x30 [ 365.360246] Total swap = 0kB [ 365.364301] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 365.367297] 1965979 pages RAM [ 365.371263] ? print_usage_bug+0xc0/0xc0 [ 365.374259] 0 pages HighMem/MovableOnly [ 365.379267] ? __lock_acquire+0x62f/0x4c20 [ 365.382352] 342854 pages reserved [ 365.386412] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 365.390362] 0 pages cma reserved [ 365.394707] ? should_fail+0x22d/0xd01 [ 365.398232] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 365.403675] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 365.403694] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 365.403712] ? __lock_acquire+0x62f/0x4c20 [ 365.407173] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 365.410947] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 365.417456] syz-fuzzer cpuset=/ mems_allowed=0 [ 365.422737] ? __lock_acquire+0x62f/0x4c20 [ 365.456088] ? should_fail+0x22d/0xd01 [ 365.459974] ? rcu_irq_exit+0x1a2/0x390 [ 365.463950] ? mark_held_locks+0x130/0x130 [ 365.468186] ? mark_held_locks+0x130/0x130 [ 365.472423] ? mark_held_locks+0xc7/0x130 [ 365.476591] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 365.481618] ? zap_class+0x640/0x640 [ 365.485323] ? print_usage_bug+0xc0/0xc0 [ 365.489403] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 365.495000] ? check_preemption_disabled+0x48/0x280 [ 365.500149] ? __lock_is_held+0xb5/0x140 [ 365.504238] __alloc_pages_nodemask+0xad8/0xea0 [ 365.508924] ? zap_class+0x640/0x640 [ 365.512655] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 365.517677] ? find_held_lock+0x36/0x1c0 [ 365.521743] ? ____cache_alloc_node+0x1c7/0x1e0 [ 365.526426] ? lock_downgrade+0x900/0x900 [ 365.530641] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 365.536182] cache_grow_begin+0xa5/0x8c0 [ 365.540286] ? do_raw_spin_unlock+0xa7/0x330 [ 365.544697] fallback_alloc+0x204/0x2e0 [ 365.548692] ____cache_alloc_node+0x1c7/0x1e0 [ 365.553188] kmem_cache_alloc_node+0xe3/0x730 [ 365.557696] ? ipv6_get_ifaddr+0x42e/0x620 [ 365.561938] __alloc_skb+0x119/0x770 [ 365.565650] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 365.570942] ? netdev_alloc_frag+0x1f0/0x1f0 [ 365.575361] ? lock_downgrade+0x900/0x900 [ 365.579523] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 365.585072] ? refcount_sub_and_test_checked+0x203/0x310 [ 365.590525] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 365.595973] ? addrconf_rs_timer+0x690/0x690 [ 365.600397] ndisc_alloc_skb+0x144/0x340 [ 365.604474] ndisc_send_rs+0x331/0x6e0 [ 365.608370] addrconf_rs_timer+0x314/0x690 [ 365.612615] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 365.616862] call_timer_fn+0x272/0x920 [ 365.620752] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 365.624986] ? process_timeout+0x40/0x40 [ 365.629055] ? __run_timers+0x7da/0xc70 [ 365.633035] ? _raw_spin_unlock_irq+0x27/0x80 [ 365.637534] ? _raw_spin_unlock_irq+0x27/0x80 [ 365.642022] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 365.646256] ? lockdep_hardirqs_on+0x296/0x5b0 [ 365.650839] ? trace_hardirqs_on+0xbd/0x310 [ 365.655158] ? kasan_check_read+0x11/0x20 [ 365.659315] ? __run_timers+0x7da/0xc70 [ 365.663287] ? trace_hardirqs_off_caller+0x310/0x310 [ 365.668394] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 365.672648] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 365.676882] __run_timers+0x7e5/0xc70 [ 365.680691] ? timer_fixup_init+0x70/0x70 [ 365.684857] ? kasan_check_read+0x11/0x20 [ 365.689004] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 365.694277] ? rcu_softirq_qs+0x20/0x20 [ 365.698263] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 365.703795] ? check_preemption_disabled+0x48/0x280 [ 365.708812] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 365.713579] ? retint_kernel+0x2d/0x2d [ 365.717479] ? trace_hardirqs_on_caller+0xc0/0x310 [ 365.722421] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 365.727174] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 365.732661] ? zap_class+0x640/0x640 [ 365.736438] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 365.741971] ? check_preemption_disabled+0x48/0x280 [ 365.746990] ? __lock_is_held+0xb5/0x140 [ 365.751063] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 365.756593] ? check_preemption_disabled+0x48/0x280 [ 365.761630] run_timer_softirq+0x52/0xb0 [ 365.765685] ? rcu_read_lock_sched_held+0x14f/0x180 [ 365.770730] __do_softirq+0x308/0xb7e [ 365.774577] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 365.779067] ? lock_downgrade+0x900/0x900 [ 365.783224] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 365.788368] ? pvclock_read_flags+0x160/0x160 [ 365.792868] ? lapic_next_event+0x5a/0x90 [ 365.797016] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 365.802574] ? kvm_clock_read+0x18/0x30 [ 365.806548] ? kvm_sched_clock_read+0x9/0x20 [ 365.810955] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 365.816490] ? check_preemption_disabled+0x48/0x280 [ 365.821512] irq_exit+0x17f/0x1c0 [ 365.824962] smp_apic_timer_interrupt+0x1cb/0x760 [ 365.829796] ? smp_reschedule_interrupt+0x109/0x650 [ 365.834805] ? smp_call_function_single_interrupt+0x650/0x650 [ 365.840684] ? interrupt_entry+0xb5/0xc0 [ 365.844792] ? trace_hardirqs_off_caller+0xbb/0x310 [ 365.849817] ? trace_hardirqs_off_caller+0xbb/0x310 [ 365.854832] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 365.859668] ? trace_hardirqs_on_caller+0x310/0x310 [ 365.864681] ? trace_hardirqs_on_caller+0x310/0x310 [ 365.869720] ? task_prio+0x50/0x50 [ 365.873266] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 365.878801] ? check_preemption_disabled+0x48/0x280 [ 365.883825] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 365.888670] apic_timer_interrupt+0xf/0x20 [ 365.892901] [ 365.895145] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 365.900075] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 365.918976] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 365.926697] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 365.933967] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 365.941250] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 365.948517] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 365.955782] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 365.963093] skb_clone+0x1bb/0x500 [ 365.966675] ? skb_split+0x11e0/0x11e0 [ 365.970564] ? preempt_notifier_register+0x200/0x200 [ 365.975694] ? __switch_to_asm+0x34/0x70 [ 365.979782] ? __switch_to_asm+0x34/0x70 [ 365.983870] ? __switch_to_asm+0x40/0x70 [ 365.987928] ? __switch_to_asm+0x34/0x70 [ 365.991985] ? __switch_to_asm+0x40/0x70 [ 365.996047] ? __switch_to_asm+0x40/0x70 [ 366.000104] ? __switch_to_asm+0x34/0x70 [ 366.004177] ? __switch_to_asm+0x34/0x70 [ 366.008249] ? __switch_to_asm+0x40/0x70 [ 366.012308] ? __switch_to_asm+0x34/0x70 [ 366.016376] bpf_clone_redirect+0xb9/0x490 [ 366.020629] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 366.025680] ? __sched_text_start+0x8/0x8 [ 366.029859] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 366.034631] ? find_held_lock+0x36/0x1c0 [ 366.038703] ? lock_acquire+0x1ed/0x520 [ 366.042678] ? bpf_test_run+0x3ee/0x7a0 [ 366.046655] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 366.052195] ? check_preemption_disabled+0x48/0x280 [ 366.057220] ? kasan_check_read+0x11/0x20 [ 366.061367] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 366.066646] ? rcu_softirq_qs+0x20/0x20 [ 366.070619] ? preempt_schedule+0x4d/0x60 [ 366.074767] ? ___preempt_schedule+0x16/0x18 [ 366.079184] ? bpf_test_run+0x271/0x7a0 [ 366.083180] ? netlink_diag_dump+0x2a0/0x2a0 [ 366.087597] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 366.093145] ? bpf_test_init.isra.10+0x70/0x100 [ 366.097834] ? bpf_prog_test_run_skb+0x762/0xd60 [ 366.102613] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 366.107477] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 366.113011] ? fput+0x130/0x1a0 [ 366.116306] ? __bpf_prog_get+0x9b/0x290 [ 366.120387] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 366.125226] ? bpf_prog_test_run+0x130/0x1a0 [ 366.129647] ? __x64_sys_bpf+0x3d8/0x520 [ 366.133704] ? bpf_prog_get+0x20/0x20 [ 366.137534] ? do_syscall_64+0x1b9/0x820 [ 366.141589] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 366.146984] ? syscall_return_slowpath+0x5e0/0x5e0 [ 366.151929] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 366.156789] ? trace_hardirqs_on_caller+0x310/0x310 [ 366.161821] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 366.166857] ? prepare_exit_to_usermode+0x291/0x3b0 [ 366.171877] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 366.176725] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 366.182140] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 366.182245] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 366.189068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 366.189076] Call Trace: [ 366.195638] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 366.204894] [ 366.207460] syz-executor4 cpuset=syz4 mems_allowed=0 [ 366.217933] dump_stack+0x244/0x39d [ 366.228818] ? dump_stack_print_info.cold.1+0x20/0x20 [ 366.234015] warn_alloc.cold.116+0xb7/0x1bd [ 366.238355] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 366.243237] ? lock_downgrade+0x900/0x900 [ 366.247398] ? trace_hardirqs_off+0xb8/0x310 [ 366.251826] ? trace_hardirqs_off+0xb8/0x310 [ 366.256243] __alloc_pages_slowpath+0x2651/0x2de0 [ 366.261107] ? warn_alloc+0x120/0x120 [ 366.264918] ? print_usage_bug+0xc0/0xc0 [ 366.268993] ? warn_alloc+0x120/0x120 [ 366.272798] ? warn_alloc+0x120/0x120 [ 366.276600] ? print_usage_bug+0xc0/0xc0 [ 366.280669] ? print_usage_bug+0xc0/0xc0 [ 366.284729] ? __lock_acquire+0x62f/0x4c20 [ 366.288983] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 366.294520] ? should_fail+0x22d/0xd01 [ 366.298409] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 366.303530] ? __lock_acquire+0x62f/0x4c20 [ 366.307779] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 366.312901] ? __lock_acquire+0x62f/0x4c20 [ 366.317140] ? should_fail+0x22d/0xd01 [ 366.321027] ? find_held_lock+0x36/0x1c0 [ 366.325091] ? mark_held_locks+0x130/0x130 [ 366.329363] ? mark_held_locks+0x130/0x130 [ 366.333598] ? zap_class+0x640/0x640 [ 366.337326] ? zap_class+0x640/0x640 [ 366.341041] ? print_usage_bug+0xc0/0xc0 [ 366.345098] ? do_raw_spin_unlock+0xa7/0x330 [ 366.349511] ? zap_class+0x640/0x640 [ 366.353223] ? print_usage_bug+0xc0/0xc0 [ 366.357282] ? wq_watchdog_touch+0x9c/0xfe [ 366.361535] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 366.367070] ? check_preemption_disabled+0x48/0x280 [ 366.372092] ? __lock_is_held+0xb5/0x140 [ 366.376169] __alloc_pages_nodemask+0xad8/0xea0 [ 366.380836] ? zap_class+0x640/0x640 [ 366.384552] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 366.389571] ? find_held_lock+0x36/0x1c0 [ 366.393638] ? ____cache_alloc_node+0x1c7/0x1e0 [ 366.398319] ? lock_downgrade+0x900/0x900 [ 366.402469] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 366.408025] cache_grow_begin+0xa5/0x8c0 [ 366.412083] ? do_raw_spin_unlock+0xa7/0x330 [ 366.416506] fallback_alloc+0x204/0x2e0 [ 366.420534] ____cache_alloc_node+0x1c7/0x1e0 [ 366.425060] kmem_cache_alloc_node+0xe3/0x730 [ 366.429571] ? ipv6_get_ifaddr+0x42e/0x620 [ 366.433859] __alloc_skb+0x119/0x770 [ 366.437574] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 366.442865] ? netdev_alloc_frag+0x1f0/0x1f0 [ 366.447270] ? lock_downgrade+0x900/0x900 [ 366.451421] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 366.456960] ? refcount_sub_and_test_checked+0x203/0x310 [ 366.462410] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 366.467872] ? addrconf_rs_timer+0x690/0x690 [ 366.472294] ndisc_alloc_skb+0x144/0x340 [ 366.476355] ndisc_send_rs+0x331/0x6e0 [ 366.480250] addrconf_rs_timer+0x314/0x690 [ 366.484502] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 366.488746] call_timer_fn+0x272/0x920 [ 366.492629] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 366.496861] ? process_timeout+0x40/0x40 [ 366.500930] ? mark_held_locks+0xc7/0x130 [ 366.505086] ? _raw_spin_unlock_irq+0x27/0x80 [ 366.509614] ? _raw_spin_unlock_irq+0x27/0x80 [ 366.514104] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 366.518347] ? lockdep_hardirqs_on+0x296/0x5b0 [ 366.522932] ? trace_hardirqs_on+0xbd/0x310 [ 366.527250] ? kasan_check_read+0x11/0x20 [ 366.531392] ? __run_timers+0x7da/0xc70 [ 366.535363] ? trace_hardirqs_off_caller+0x310/0x310 [ 366.540464] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 366.544730] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 366.548959] __run_timers+0x7e5/0xc70 [ 366.552777] ? timer_fixup_init+0x70/0x70 [ 366.556942] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 366.561954] ? zap_class+0x640/0x640 [ 366.565665] ? print_usage_bug+0xc0/0xc0 [ 366.569723] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 366.574943] ? find_held_lock+0x36/0x1c0 [ 366.579002] ? zap_class+0x640/0x640 [ 366.582768] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 366.588330] ? check_preemption_disabled+0x48/0x280 [ 366.593369] ? __lock_is_held+0xb5/0x140 [ 366.597496] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 366.603028] ? check_preemption_disabled+0x48/0x280 [ 366.608067] run_timer_softirq+0x52/0xb0 [ 366.612132] ? rcu_read_lock_sched_held+0x14f/0x180 [ 366.617150] __do_softirq+0x308/0xb7e [ 366.620950] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 366.625493] ? lock_downgrade+0x900/0x900 [ 366.629672] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 366.634784] ? pvclock_read_flags+0x160/0x160 [ 366.639277] ? lapic_next_event+0x5a/0x90 [ 366.643442] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 366.648997] ? kvm_clock_read+0x18/0x30 [ 366.652976] ? kvm_sched_clock_read+0x9/0x20 [ 366.657388] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 366.662930] ? check_preemption_disabled+0x48/0x280 [ 366.667958] irq_exit+0x17f/0x1c0 [ 366.671421] smp_apic_timer_interrupt+0x1cb/0x760 [ 366.676265] ? smp_reschedule_interrupt+0x109/0x650 [ 366.681283] ? smp_call_function_single_interrupt+0x650/0x650 [ 366.687165] ? interrupt_entry+0xb5/0xc0 [ 366.691228] ? trace_hardirqs_off_caller+0xbb/0x310 [ 366.696242] ? trace_hardirqs_off_caller+0xbb/0x310 [ 366.701257] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 366.706097] ? trace_hardirqs_on_caller+0x310/0x310 [ 366.711136] ? trace_hardirqs_on_caller+0x310/0x310 [ 366.716155] ? task_prio+0x50/0x50 [ 366.719698] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 366.725233] ? check_preemption_disabled+0x48/0x280 [ 366.730265] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 366.735131] apic_timer_interrupt+0xf/0x20 [ 366.739369] [ 366.741608] RIP: 0010:lock_acquire+0x268/0x520 [ 366.746191] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 366.765084] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 366.772794] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 366.780054] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 366.787313] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 366.794571] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 366.801832] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 366.809168] ? lruvec_lru_size+0x450/0x450 [ 366.813418] ? kasan_check_read+0x11/0x20 [ 366.817582] ? lock_release+0xa00/0xa00 [ 366.821574] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 366.826520] down_read_trylock+0xda/0x140 [ 366.830679] ? shrink_slab+0x207/0x8c0 [ 366.834574] ? downgrade_write+0x270/0x270 [ 366.838838] shrink_slab+0x207/0x8c0 [ 366.842554] ? shrink_active_list+0x1f00/0x1f00 [ 366.847233] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 366.852856] ? __lock_acquire+0x62f/0x4c20 [ 366.857096] ? percpu_ref_get_many+0x240/0x240 [ 366.861725] ? print_usage_bug+0xc0/0xc0 [ 366.865790] shrink_node+0x431/0x16b0 [ 366.869596] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 366.874894] ? shrink_node_memcg+0x18f0/0x18f0 [ 366.879515] ? kvm_clock_read+0x18/0x30 [ 366.883494] ? ktime_get+0x2c1/0x400 [ 366.887216] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 366.891714] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 366.897282] ? __cpuset_node_allowed+0x19b/0x660 [ 366.902036] ? mark_held_locks+0x130/0x130 [ 366.906271] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 366.911989] ? zap_class+0x640/0x640 [ 366.915714] do_try_to_free_pages+0x3e7/0x1290 [ 366.920294] ? zap_class+0x640/0x640 [ 366.924023] ? shrink_node+0x16b0/0x16b0 [ 366.928084] ? __lock_is_held+0xb5/0x140 [ 366.932164] try_to_free_pages+0x4d0/0xb90 [ 366.936401] ? do_try_to_free_pages+0x1290/0x1290 [ 366.941259] ? lock_acquire+0x1ed/0x520 [ 366.945233] ? set_page_refcounted+0x280/0x280 [ 366.949983] ? lock_release+0xa00/0xa00 [ 366.953961] ? _raw_spin_unlock_irq+0x60/0x80 [ 366.958469] ? psi_memstall_enter+0x240/0x2b0 [ 366.962982] ? psi_memstall_tick+0x230/0x230 [ 366.967401] __alloc_pages_slowpath+0xa48/0x2de0 [ 366.972184] ? warn_alloc+0x120/0x120 [ 366.975982] ? mark_held_locks+0x130/0x130 [ 366.980222] ? find_get_entry+0xaae/0x1120 [ 366.984465] ? filemap_map_pages+0x1a20/0x1a20 [ 366.989051] ? zap_class+0x640/0x640 [ 366.992777] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 366.998338] ? check_preemption_disabled+0x48/0x280 [ 367.003352] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 367.008894] ? should_fail+0x22d/0xd01 [ 367.012784] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 367.017896] ? zap_class+0x640/0x640 [ 367.021633] ? __lock_is_held+0xb5/0x140 [ 367.025729] ? mark_held_locks+0x130/0x130 [ 367.029966] ? lock_release+0xa00/0xa00 [ 367.033937] ? perf_trace_sched_process_exec+0x860/0x860 [ 367.039387] ? xa_load+0x2ba/0x460 [ 367.042927] ? lock_downgrade+0x900/0x900 [ 367.047084] ? __might_sleep+0x95/0x190 [ 367.051072] __alloc_pages_nodemask+0xad8/0xea0 [ 367.055749] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 367.060779] ? __page_cache_alloc+0x191/0x5c0 [ 367.065272] ? xa_load+0x2e1/0x460 [ 367.068811] ? xa_clear_mark+0x40/0x40 [ 367.072697] ? zap_class+0x640/0x640 [ 367.076457] ? zap_class+0x640/0x640 [ 367.080684] ? zap_class+0x640/0x640 [ 367.084413] ? __do_page_cache_readahead+0x663/0x810 [ 367.089520] ? find_held_lock+0x36/0x1c0 [ 367.093585] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 367.099142] alloc_pages_current+0x173/0x350 [ 367.103556] __page_cache_alloc+0x38c/0x5c0 [ 367.107875] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 367.112809] ? kasan_check_read+0x11/0x20 [ 367.116958] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 367.122441] ? generic_perform_write+0x6a0/0x6a0 [ 367.127199] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 367.132739] ? check_preemption_disabled+0x48/0x280 [ 367.137771] filemap_fault+0x1595/0x25f0 [ 367.141844] ? __lock_page_or_retry+0xa00/0xa00 [ 367.146514] ? mark_held_locks+0x130/0x130 [ 367.150755] ? filemap_map_pages+0xd6b/0x1a20 [ 367.155269] ? lock_downgrade+0x900/0x900 [ 367.159451] ? check_preemption_disabled+0x48/0x280 [ 367.164481] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 367.169423] ? kasan_check_read+0x11/0x20 [ 367.173567] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 367.178837] ? rcu_softirq_qs+0x20/0x20 [ 367.182822] ? filemap_map_pages+0xd92/0x1a20 [ 367.187354] ? find_get_entries_tag+0x1400/0x1400 [ 367.192198] ? debug_object_destroy+0x2b0/0x2b0 [ 367.196868] ? lock_pi_update_atomic+0x150/0x150 [ 367.201629] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 367.207175] ? lock_acquire+0x1ed/0x520 [ 367.211149] ? ext4_filemap_fault+0x7a/0xad [ 367.215479] ? lock_release+0xa00/0xa00 [ 367.219453] ? perf_trace_sched_process_exec+0x860/0x860 [ 367.224913] ? print_usage_bug+0xc0/0xc0 [ 367.228971] ? print_usage_bug+0xc0/0xc0 [ 367.233038] ? down_read+0x8d/0x120 [ 367.236671] ? ext4_filemap_fault+0x7a/0xad [ 367.240986] ? __down_interruptible+0x700/0x700 [ 367.245662] ext4_filemap_fault+0x82/0xad [ 367.249811] __do_fault+0x100/0x6b0 [ 367.253432] ? find_held_lock+0x36/0x1c0 [ 367.257490] ? pmd_devmap_trans_unstable+0x220/0x220 [ 367.262589] ? mark_held_locks+0x130/0x130 [ 367.266844] ? mark_held_locks+0x130/0x130 [ 367.271082] ? kasan_check_read+0x11/0x20 [ 367.275229] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 367.280783] __handle_mm_fault+0x3ea0/0x5be0 [ 367.285183] ? perf_trace_lock+0x7a0/0x7a0 [ 367.289425] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 367.294267] ? __switch_to_asm+0x34/0x70 [ 367.298320] ? __switch_to_asm+0x34/0x70 [ 367.302404] ? zap_class+0x640/0x640 [ 367.306108] ? zap_class+0x640/0x640 [ 367.309837] ? __x64_sys_futex+0x53e/0x6a0 [ 367.314107] ? find_held_lock+0x36/0x1c0 [ 367.318208] ? handle_mm_fault+0x42a/0xc70 [ 367.322467] ? lock_downgrade+0x900/0x900 [ 367.326732] ? check_preemption_disabled+0x48/0x280 [ 367.331760] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 367.336701] ? kasan_check_read+0x11/0x20 [ 367.340858] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 367.346174] ? rcu_softirq_qs+0x20/0x20 [ 367.350169] ? trace_hardirqs_off_caller+0x310/0x310 [ 367.355269] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 367.360797] ? sync_mm_rss+0x9a/0x1c0 [ 367.364596] handle_mm_fault+0x54f/0xc70 [ 367.368654] ? __handle_mm_fault+0x5be0/0x5be0 [ 367.373244] ? find_vma+0x34/0x190 [ 367.376783] __do_page_fault+0x5e8/0xe60 [ 367.380833] ? trace_hardirqs_off+0xb8/0x310 [ 367.385245] do_page_fault+0xf2/0x7e0 [ 367.389050] ? vmalloc_sync_all+0x30/0x30 [ 367.393191] ? error_entry+0x70/0xd0 [ 367.396925] ? trace_hardirqs_off_caller+0xbb/0x310 [ 367.401954] ? trace_hardirqs_on_caller+0xc0/0x310 [ 367.406878] ? syscall_return_slowpath+0x5e0/0x5e0 [ 367.411823] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 367.416660] ? trace_hardirqs_on_caller+0x310/0x310 [ 367.421673] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 367.427128] ? prepare_exit_to_usermode+0x291/0x3b0 [ 367.432144] ? page_fault+0x8/0x30 [ 367.435678] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 367.440518] ? page_fault+0x8/0x30 [ 367.444072] page_fault+0x1e/0x30 [ 367.447571] RIP: 0033:0x45ddf3 [ 367.450793] Code: Bad RIP value. [ 367.454163] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 367.459515] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 367.466773] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 367.474035] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 367.481297] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 367.488557] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 367.495841] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 367.495863] warn_alloc_show_mem: 1 callbacks suppressed [ 367.495869] Mem-Info: [ 367.503157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 367.508519] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 367.508519] active_file:17 inactive_file:17 isolated_file:0 [ 367.508519] unevictable:0 dirty:4 writeback:0 unstable:0 [ 367.508519] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 367.508519] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 367.508519] free:13550 free_pcp:124 free_cma:0 [ 367.510894] Call Trace: [ 367.520269] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 367.553297] [ 367.555890] 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 [ 367.583649] dump_stack+0x244/0x39d [ 367.585770] lowmem_reserve[]: 0 2818 6321 6321 [ 367.611869] ? dump_stack_print_info.cold.1+0x20/0x20 [ 367.615469] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 367.620048] warn_alloc.cold.116+0xb7/0x1bd [ 367.625201] lowmem_reserve[]: 0 0 3503 3503 [ 367.652512] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 367.656822] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 367.661163] ? lock_downgrade+0x900/0x900 [ 367.665977] lowmem_reserve[]: 0 0 0 0 [ 367.694857] ? trace_hardirqs_off+0xb8/0x310 [ 367.698973] 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 [ 367.702759] ? trace_hardirqs_off+0xb8/0x310 [ 367.707153] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 367.720667] __alloc_pages_slowpath+0x2651/0x2de0 [ 367.725042] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 367.739832] ? warn_alloc+0x120/0x120 [ 367.744634] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 367.759351] ? print_usage_bug+0xc0/0xc0 [ 367.763146] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 367.771963] ? warn_alloc+0x120/0x120 [ 367.775997] 1360 total pagecache pages [ 367.784557] ? warn_alloc+0x120/0x120 [ 367.788349] 0 pages in swap cache [ 367.792213] ? print_usage_bug+0xc0/0xc0 [ 367.795990] Swap cache stats: add 0, delete 0, find 0/0 [ 367.799445] ? kvm_clock_read+0x18/0x30 [ 367.803481] Free swap = 0kB [ 367.808857] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 367.812805] Total swap = 0kB [ 367.815811] ? print_usage_bug+0xc0/0xc0 [ 367.820799] 1965979 pages RAM [ 367.823805] ? __lock_acquire+0x62f/0x4c20 [ 367.827838] 0 pages HighMem/MovableOnly [ 367.830935] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 367.835142] 342854 pages reserved [ 367.839105] ? should_fail+0x22d/0xd01 [ 367.844615] 0 pages cma reserved [ 367.848070] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 367.852004] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 367.855286] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 367.860593] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 367.867013] ? __lock_acquire+0x62f/0x4c20 [ 367.872089] syz-fuzzer cpuset=/ mems_allowed=0 [ 367.882317] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 367.896170] ? __lock_acquire+0x62f/0x4c20 [ 367.900424] ? should_fail+0x22d/0xd01 [ 367.904363] ? rcu_irq_exit+0x1a2/0x390 [ 367.908382] ? mark_held_locks+0x130/0x130 [ 367.912625] ? mark_held_locks+0x130/0x130 [ 367.916876] ? mark_held_locks+0xc7/0x130 [ 367.921027] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 367.926038] ? zap_class+0x640/0x640 [ 367.929761] ? print_usage_bug+0xc0/0xc0 [ 367.933821] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 367.939397] ? check_preemption_disabled+0x48/0x280 [ 367.944434] ? __lock_is_held+0xb5/0x140 [ 367.948509] __alloc_pages_nodemask+0xad8/0xea0 [ 367.953181] ? zap_class+0x640/0x640 [ 367.956894] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 367.961914] ? find_held_lock+0x36/0x1c0 [ 367.965978] ? ____cache_alloc_node+0x1c7/0x1e0 [ 367.970644] ? lock_downgrade+0x900/0x900 [ 367.974791] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 367.980342] cache_grow_begin+0xa5/0x8c0 [ 367.984401] ? do_raw_spin_unlock+0xa7/0x330 [ 367.988809] fallback_alloc+0x204/0x2e0 [ 367.992783] ____cache_alloc_node+0x1c7/0x1e0 [ 367.997293] kmem_cache_alloc_node+0xe3/0x730 [ 368.001784] ? ipv6_get_ifaddr+0x42e/0x620 [ 368.006030] __alloc_skb+0x119/0x770 [ 368.009746] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 368.015051] ? netdev_alloc_frag+0x1f0/0x1f0 [ 368.019468] ? lock_downgrade+0x900/0x900 [ 368.023631] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 368.029169] ? refcount_sub_and_test_checked+0x203/0x310 [ 368.034619] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 368.040130] ? addrconf_rs_timer+0x690/0x690 [ 368.044591] ndisc_alloc_skb+0x144/0x340 [ 368.048718] ndisc_send_rs+0x331/0x6e0 [ 368.052608] addrconf_rs_timer+0x314/0x690 [ 368.056873] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 368.061110] call_timer_fn+0x272/0x920 [ 368.065015] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 368.069242] ? process_timeout+0x40/0x40 [ 368.073299] ? __run_timers+0x7da/0xc70 [ 368.077280] ? _raw_spin_unlock_irq+0x27/0x80 [ 368.081796] ? _raw_spin_unlock_irq+0x27/0x80 [ 368.086360] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 368.090597] ? lockdep_hardirqs_on+0x296/0x5b0 [ 368.095179] ? trace_hardirqs_on+0xbd/0x310 [ 368.099530] ? kasan_check_read+0x11/0x20 [ 368.103671] ? __run_timers+0x7da/0xc70 [ 368.107647] ? trace_hardirqs_off_caller+0x310/0x310 [ 368.112806] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 368.117058] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 368.121282] __run_timers+0x7e5/0xc70 [ 368.125124] ? timer_fixup_init+0x70/0x70 [ 368.129274] ? kasan_check_read+0x11/0x20 [ 368.133434] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 368.138721] ? rcu_softirq_qs+0x20/0x20 [ 368.142813] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 368.148349] ? check_preemption_disabled+0x48/0x280 [ 368.153369] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 368.158136] ? retint_kernel+0x2d/0x2d [ 368.162022] ? trace_hardirqs_on_caller+0xc0/0x310 [ 368.166945] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 368.171700] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 368.177163] ? zap_class+0x640/0x640 [ 368.180891] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 368.186472] ? check_preemption_disabled+0x48/0x280 [ 368.191488] ? __lock_is_held+0xb5/0x140 [ 368.195558] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 368.201090] ? check_preemption_disabled+0x48/0x280 [ 368.206135] run_timer_softirq+0x52/0xb0 [ 368.210195] ? rcu_read_lock_sched_held+0x14f/0x180 [ 368.215206] __do_softirq+0x308/0xb7e [ 368.219010] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 368.223507] ? lock_downgrade+0x900/0x900 [ 368.227662] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 368.232786] ? pvclock_read_flags+0x160/0x160 [ 368.237296] ? lapic_next_event+0x5a/0x90 [ 368.241477] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 368.247022] ? kvm_clock_read+0x18/0x30 [ 368.251010] ? kvm_sched_clock_read+0x9/0x20 [ 368.255421] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 368.260955] ? check_preemption_disabled+0x48/0x280 [ 368.265975] irq_exit+0x17f/0x1c0 [ 368.269439] smp_apic_timer_interrupt+0x1cb/0x760 [ 368.274275] ? smp_reschedule_interrupt+0x109/0x650 [ 368.279289] ? smp_call_function_single_interrupt+0x650/0x650 [ 368.285201] ? interrupt_entry+0xb5/0xc0 [ 368.289266] ? trace_hardirqs_off_caller+0xbb/0x310 [ 368.294282] ? trace_hardirqs_off_caller+0xbb/0x310 [ 368.299300] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 368.304172] ? trace_hardirqs_on_caller+0x310/0x310 [ 368.309192] ? trace_hardirqs_on_caller+0x310/0x310 [ 368.314211] ? task_prio+0x50/0x50 [ 368.317767] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 368.323333] ? check_preemption_disabled+0x48/0x280 [ 368.328380] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 368.333271] apic_timer_interrupt+0xf/0x20 [ 368.337521] [ 368.339815] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 368.344765] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 368.363689] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 368.371413] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 368.378697] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 368.385965] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 368.393231] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 368.400495] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 368.407804] skb_clone+0x1bb/0x500 [ 368.411378] ? skb_split+0x11e0/0x11e0 [ 368.415312] ? preempt_notifier_register+0x200/0x200 [ 368.420431] ? __switch_to_asm+0x34/0x70 [ 368.424488] ? __switch_to_asm+0x34/0x70 [ 368.428547] ? __switch_to_asm+0x40/0x70 [ 368.432620] ? __switch_to_asm+0x34/0x70 [ 368.436696] ? __switch_to_asm+0x40/0x70 [ 368.440756] ? __switch_to_asm+0x40/0x70 [ 368.444837] ? __switch_to_asm+0x34/0x70 [ 368.448907] ? __switch_to_asm+0x34/0x70 [ 368.452967] ? __switch_to_asm+0x40/0x70 [ 368.457029] ? __switch_to_asm+0x34/0x70 [ 368.461098] bpf_clone_redirect+0xb9/0x490 [ 368.465367] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 368.470425] ? __sched_text_start+0x8/0x8 [ 368.474589] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 368.479369] ? find_held_lock+0x36/0x1c0 [ 368.483461] ? lock_acquire+0x1ed/0x520 [ 368.487432] ? bpf_test_run+0x3ee/0x7a0 [ 368.491408] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 368.496948] ? check_preemption_disabled+0x48/0x280 [ 368.501972] ? kasan_check_read+0x11/0x20 [ 368.506131] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 368.511409] ? rcu_softirq_qs+0x20/0x20 [ 368.515391] ? preempt_schedule+0x4d/0x60 [ 368.519555] ? ___preempt_schedule+0x16/0x18 [ 368.523980] ? bpf_test_run+0x271/0x7a0 [ 368.527983] ? netlink_diag_dump+0x2a0/0x2a0 [ 368.532402] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 368.537942] ? bpf_test_init.isra.10+0x70/0x100 [ 368.542623] ? bpf_prog_test_run_skb+0x762/0xd60 [ 368.547399] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 368.552252] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 368.557830] ? fput+0x130/0x1a0 [ 368.561148] ? __bpf_prog_get+0x9b/0x290 [ 368.565220] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 368.570065] ? bpf_prog_test_run+0x130/0x1a0 [ 368.574479] ? __x64_sys_bpf+0x3d8/0x520 [ 368.578541] ? bpf_prog_get+0x20/0x20 [ 368.582363] ? do_syscall_64+0x1b9/0x820 [ 368.586432] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 368.591798] ? syscall_return_slowpath+0x5e0/0x5e0 [ 368.596728] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 368.601576] ? trace_hardirqs_on_caller+0x310/0x310 [ 368.606598] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 368.611621] ? prepare_exit_to_usermode+0x291/0x3b0 [ 368.616649] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 368.621500] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 368.626901] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 368.626980] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 368.633857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 368.633862] Call Trace: [ 368.633869] [ 368.633893] dump_stack+0x244/0x39d [ 368.633911] ? dump_stack_print_info.cold.1+0x20/0x20 [ 368.640554] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 368.649756] warn_alloc.cold.116+0xb7/0x1bd [ 368.652313] syz-executor4 cpuset=syz4 mems_allowed=0 [ 368.654456] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 368.687941] ? lock_downgrade+0x900/0x900 [ 368.692095] ? trace_hardirqs_off+0xb8/0x310 [ 368.696514] ? trace_hardirqs_off+0xb8/0x310 [ 368.700937] __alloc_pages_slowpath+0x2651/0x2de0 [ 368.705809] ? warn_alloc+0x120/0x120 [ 368.709616] ? print_usage_bug+0xc0/0xc0 [ 368.713694] ? warn_alloc+0x120/0x120 [ 368.717508] ? warn_alloc+0x120/0x120 [ 368.721329] ? print_usage_bug+0xc0/0xc0 [ 368.725408] ? print_usage_bug+0xc0/0xc0 [ 368.729485] ? __lock_acquire+0x62f/0x4c20 [ 368.733747] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 368.739286] ? should_fail+0x22d/0xd01 [ 368.743213] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 368.748326] ? __lock_acquire+0x62f/0x4c20 [ 368.752559] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 368.757656] ? __lock_acquire+0x62f/0x4c20 [ 368.761883] ? should_fail+0x22d/0xd01 [ 368.765786] ? find_held_lock+0x36/0x1c0 [ 368.769849] ? mark_held_locks+0x130/0x130 [ 368.774097] ? mark_held_locks+0x130/0x130 [ 368.778348] ? zap_class+0x640/0x640 [ 368.782085] ? zap_class+0x640/0x640 [ 368.785816] ? print_usage_bug+0xc0/0xc0 [ 368.789888] ? do_raw_spin_unlock+0xa7/0x330 [ 368.794292] ? zap_class+0x640/0x640 [ 368.798000] ? print_usage_bug+0xc0/0xc0 [ 368.802052] ? wq_watchdog_touch+0x9c/0xfe [ 368.806307] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 368.811847] ? check_preemption_disabled+0x48/0x280 [ 368.816891] ? __lock_is_held+0xb5/0x140 [ 368.820965] __alloc_pages_nodemask+0xad8/0xea0 [ 368.825637] ? zap_class+0x640/0x640 [ 368.829368] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 368.834428] ? find_held_lock+0x36/0x1c0 [ 368.838511] ? ____cache_alloc_node+0x1c7/0x1e0 [ 368.843191] ? lock_downgrade+0x900/0x900 [ 368.847360] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 368.852923] cache_grow_begin+0xa5/0x8c0 [ 368.857007] ? do_raw_spin_unlock+0xa7/0x330 [ 368.861455] fallback_alloc+0x204/0x2e0 [ 368.865471] ____cache_alloc_node+0x1c7/0x1e0 [ 368.869981] kmem_cache_alloc_node+0xe3/0x730 [ 368.874475] ? ipv6_get_ifaddr+0x42e/0x620 [ 368.878736] __alloc_skb+0x119/0x770 [ 368.882458] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 368.887748] ? netdev_alloc_frag+0x1f0/0x1f0 [ 368.892183] ? lock_downgrade+0x900/0x900 [ 368.896371] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 368.901970] ? refcount_sub_and_test_checked+0x203/0x310 [ 368.907457] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 368.912937] ? addrconf_rs_timer+0x690/0x690 [ 368.917378] ndisc_alloc_skb+0x144/0x340 [ 368.921464] ndisc_send_rs+0x331/0x6e0 [ 368.925368] addrconf_rs_timer+0x314/0x690 [ 368.929638] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 368.933894] call_timer_fn+0x272/0x920 [ 368.937807] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 368.942059] ? process_timeout+0x40/0x40 [ 368.946144] ? mark_held_locks+0xc7/0x130 [ 368.950492] ? _raw_spin_unlock_irq+0x27/0x80 [ 368.954990] ? _raw_spin_unlock_irq+0x27/0x80 [ 368.959478] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 368.963706] ? lockdep_hardirqs_on+0x296/0x5b0 [ 368.968321] ? trace_hardirqs_on+0xbd/0x310 [ 368.972656] ? kasan_check_read+0x11/0x20 [ 368.976801] ? __run_timers+0x7da/0xc70 [ 368.980773] ? trace_hardirqs_off_caller+0x310/0x310 [ 368.985878] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 368.990126] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 368.994378] __run_timers+0x7e5/0xc70 [ 368.998231] ? timer_fixup_init+0x70/0x70 [ 369.002380] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 369.007432] ? zap_class+0x640/0x640 [ 369.011170] ? print_usage_bug+0xc0/0xc0 [ 369.015267] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 369.020504] ? find_held_lock+0x36/0x1c0 [ 369.024605] ? zap_class+0x640/0x640 [ 369.028345] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 369.033921] ? check_preemption_disabled+0x48/0x280 [ 369.038999] ? __lock_is_held+0xb5/0x140 [ 369.043089] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 369.048661] ? check_preemption_disabled+0x48/0x280 [ 369.053693] run_timer_softirq+0x52/0xb0 [ 369.057756] ? rcu_read_lock_sched_held+0x14f/0x180 [ 369.062792] __do_softirq+0x308/0xb7e [ 369.066598] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 369.071130] ? lock_downgrade+0x900/0x900 [ 369.075284] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 369.080948] ? pvclock_read_flags+0x160/0x160 [ 369.085465] ? lapic_next_event+0x5a/0x90 [ 369.089613] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 369.095157] ? kvm_clock_read+0x18/0x30 [ 369.099136] ? kvm_sched_clock_read+0x9/0x20 [ 369.103545] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 369.109098] ? check_preemption_disabled+0x48/0x280 [ 369.114151] irq_exit+0x17f/0x1c0 [ 369.117607] smp_apic_timer_interrupt+0x1cb/0x760 [ 369.122451] ? smp_reschedule_interrupt+0x109/0x650 [ 369.127512] ? smp_call_function_single_interrupt+0x650/0x650 [ 369.133434] ? interrupt_entry+0xb5/0xc0 [ 369.137525] ? trace_hardirqs_off_caller+0xbb/0x310 [ 369.142556] ? trace_hardirqs_off_caller+0xbb/0x310 [ 369.147589] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 369.152457] ? trace_hardirqs_on_caller+0x310/0x310 [ 369.157505] ? trace_hardirqs_on_caller+0x310/0x310 [ 369.162558] ? task_prio+0x50/0x50 [ 369.166142] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 369.171684] ? check_preemption_disabled+0x48/0x280 [ 369.176714] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 369.181592] apic_timer_interrupt+0xf/0x20 [ 369.185838] [ 369.188129] RIP: 0010:lock_acquire+0x268/0x520 [ 369.192717] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 369.211640] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 369.219387] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 369.226696] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 369.233976] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 369.241252] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 369.248539] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 369.255847] ? lruvec_lru_size+0x450/0x450 [ 369.260088] ? kasan_check_read+0x11/0x20 [ 369.264253] ? lock_release+0xa00/0xa00 [ 369.268241] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 369.273192] down_read_trylock+0xda/0x140 [ 369.277361] ? shrink_slab+0x207/0x8c0 [ 369.281256] ? downgrade_write+0x270/0x270 [ 369.285496] shrink_slab+0x207/0x8c0 [ 369.289208] ? shrink_active_list+0x1f00/0x1f00 [ 369.293896] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 369.299544] ? __lock_acquire+0x62f/0x4c20 [ 369.303804] ? percpu_ref_get_many+0x240/0x240 [ 369.308426] ? print_usage_bug+0xc0/0xc0 [ 369.312506] shrink_node+0x431/0x16b0 [ 369.316345] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 369.321656] ? shrink_node_memcg+0x18f0/0x18f0 [ 369.326260] ? kvm_clock_read+0x18/0x30 [ 369.330240] ? ktime_get+0x2c1/0x400 [ 369.333963] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 369.338461] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 369.344000] ? __cpuset_node_allowed+0x19b/0x660 [ 369.348755] ? mark_held_locks+0x130/0x130 [ 369.352992] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 369.358702] ? zap_class+0x640/0x640 [ 369.362443] do_try_to_free_pages+0x3e7/0x1290 [ 369.367022] ? zap_class+0x640/0x640 [ 369.370751] ? shrink_node+0x16b0/0x16b0 [ 369.374809] ? __lock_is_held+0xb5/0x140 [ 369.378878] try_to_free_pages+0x4d0/0xb90 [ 369.383128] ? do_try_to_free_pages+0x1290/0x1290 [ 369.388025] ? lock_acquire+0x1ed/0x520 [ 369.392030] ? set_page_refcounted+0x280/0x280 [ 369.396624] ? lock_release+0xa00/0xa00 [ 369.400596] ? _raw_spin_unlock_irq+0x60/0x80 [ 369.405104] ? psi_memstall_enter+0x240/0x2b0 [ 369.409618] ? psi_memstall_tick+0x230/0x230 [ 369.414031] __alloc_pages_slowpath+0xa48/0x2de0 [ 369.418807] ? warn_alloc+0x120/0x120 [ 369.422615] ? mark_held_locks+0x130/0x130 [ 369.426849] ? find_get_entry+0xaae/0x1120 [ 369.431095] ? filemap_map_pages+0x1a20/0x1a20 [ 369.435710] ? zap_class+0x640/0x640 [ 369.439423] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 369.444957] ? check_preemption_disabled+0x48/0x280 [ 369.449999] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 369.455552] ? should_fail+0x22d/0xd01 [ 369.459440] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 369.464539] ? zap_class+0x640/0x640 [ 369.468340] ? __lock_is_held+0xb5/0x140 [ 369.472418] ? mark_held_locks+0x130/0x130 [ 369.476653] ? lock_release+0xa00/0xa00 [ 369.480624] ? perf_trace_sched_process_exec+0x860/0x860 [ 369.486069] ? xa_load+0x2ba/0x460 [ 369.489636] ? lock_downgrade+0x900/0x900 [ 369.493796] ? __might_sleep+0x95/0x190 [ 369.497766] __alloc_pages_nodemask+0xad8/0xea0 [ 369.502490] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 369.507508] ? __page_cache_alloc+0x191/0x5c0 [ 369.512010] ? xa_load+0x2e1/0x460 [ 369.515546] ? xa_clear_mark+0x40/0x40 [ 369.519448] ? zap_class+0x640/0x640 [ 369.523175] ? zap_class+0x640/0x640 [ 369.526899] ? zap_class+0x640/0x640 [ 369.530614] ? __do_page_cache_readahead+0x663/0x810 [ 369.535717] ? find_held_lock+0x36/0x1c0 [ 369.539775] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 369.545313] alloc_pages_current+0x173/0x350 [ 369.549723] __page_cache_alloc+0x38c/0x5c0 [ 369.554035] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 369.558961] ? kasan_check_read+0x11/0x20 [ 369.563122] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 369.568450] ? generic_perform_write+0x6a0/0x6a0 [ 369.573232] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 369.578816] ? check_preemption_disabled+0x48/0x280 [ 369.583849] filemap_fault+0x1595/0x25f0 [ 369.587929] ? __lock_page_or_retry+0xa00/0xa00 [ 369.592604] ? mark_held_locks+0x130/0x130 [ 369.596867] ? filemap_map_pages+0xd6b/0x1a20 [ 369.601417] ? lock_downgrade+0x900/0x900 [ 369.605563] ? check_preemption_disabled+0x48/0x280 [ 369.610594] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 369.615548] ? kasan_check_read+0x11/0x20 [ 369.619728] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 369.625044] ? rcu_softirq_qs+0x20/0x20 [ 369.629081] ? filemap_map_pages+0xd92/0x1a20 [ 369.633650] ? find_get_entries_tag+0x1400/0x1400 [ 369.638530] ? debug_object_destroy+0x2b0/0x2b0 [ 369.643229] ? lock_pi_update_atomic+0x150/0x150 [ 369.647984] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 369.653529] ? lock_acquire+0x1ed/0x520 [ 369.657526] ? ext4_filemap_fault+0x7a/0xad [ 369.661855] ? lock_release+0xa00/0xa00 [ 369.665837] ? perf_trace_sched_process_exec+0x860/0x860 [ 369.671287] ? print_usage_bug+0xc0/0xc0 [ 369.675351] ? print_usage_bug+0xc0/0xc0 [ 369.679418] ? down_read+0x8d/0x120 [ 369.683037] ? ext4_filemap_fault+0x7a/0xad [ 369.687356] ? __down_interruptible+0x700/0x700 [ 369.692029] ext4_filemap_fault+0x82/0xad [ 369.696176] __do_fault+0x100/0x6b0 [ 369.699826] ? find_held_lock+0x36/0x1c0 [ 369.703905] ? pmd_devmap_trans_unstable+0x220/0x220 [ 369.709008] ? mark_held_locks+0x130/0x130 [ 369.713254] ? mark_held_locks+0x130/0x130 [ 369.717496] ? kasan_check_read+0x11/0x20 [ 369.721641] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 369.727175] __handle_mm_fault+0x3ea0/0x5be0 [ 369.731575] ? perf_trace_lock+0x7a0/0x7a0 [ 369.735821] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 369.740670] ? __switch_to_asm+0x34/0x70 [ 369.744721] ? __switch_to_asm+0x34/0x70 [ 369.748786] ? zap_class+0x640/0x640 [ 369.752494] ? zap_class+0x640/0x640 [ 369.756202] ? __x64_sys_futex+0x53e/0x6a0 [ 369.760431] ? find_held_lock+0x36/0x1c0 [ 369.764494] ? handle_mm_fault+0x42a/0xc70 [ 369.768722] ? lock_downgrade+0x900/0x900 [ 369.772867] ? check_preemption_disabled+0x48/0x280 [ 369.777909] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 369.782833] ? kasan_check_read+0x11/0x20 [ 369.786974] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 369.792246] ? rcu_softirq_qs+0x20/0x20 [ 369.796229] ? trace_hardirqs_off_caller+0x310/0x310 [ 369.801328] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 369.806859] ? sync_mm_rss+0x9a/0x1c0 [ 369.810687] handle_mm_fault+0x54f/0xc70 [ 369.814764] ? __handle_mm_fault+0x5be0/0x5be0 [ 369.819435] ? find_vma+0x34/0x190 [ 369.822978] __do_page_fault+0x5e8/0xe60 [ 369.827037] ? trace_hardirqs_off+0xb8/0x310 [ 369.831455] do_page_fault+0xf2/0x7e0 [ 369.835258] ? vmalloc_sync_all+0x30/0x30 [ 369.839409] ? error_entry+0x70/0xd0 [ 369.843132] ? trace_hardirqs_off_caller+0xbb/0x310 [ 369.848151] ? trace_hardirqs_on_caller+0xc0/0x310 [ 369.853086] ? syscall_return_slowpath+0x5e0/0x5e0 [ 369.858021] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 369.862869] ? trace_hardirqs_on_caller+0x310/0x310 [ 369.867893] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 369.873351] ? prepare_exit_to_usermode+0x291/0x3b0 [ 369.878396] ? page_fault+0x8/0x30 [ 369.881938] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 369.886820] ? page_fault+0x8/0x30 [ 369.890364] page_fault+0x1e/0x30 [ 369.893838] RIP: 0033:0x45ddf3 [ 369.897042] Code: Bad RIP value. [ 369.900401] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 369.905760] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 369.913025] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 369.920287] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 369.927590] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 369.934865] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 369.942187] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 369.942192] warn_alloc_show_mem: 1 callbacks suppressed [ 369.942198] Mem-Info: [ 369.949473] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 369.954866] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 369.954866] active_file:17 inactive_file:17 isolated_file:0 [ 369.954866] unevictable:0 dirty:4 writeback:0 unstable:0 [ 369.954866] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 369.954866] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 369.954866] free:13550 free_pcp:124 free_cma:0 [ 369.957237] Call Trace: [ 369.966637] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 369.999688] [ 370.002261] 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 [ 370.030030] dump_stack+0x244/0x39d [ 370.032149] lowmem_reserve[]: 0 2818 6321 6321 [ 370.058285] ? dump_stack_print_info.cold.1+0x20/0x20 [ 370.061901] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 370.066520] warn_alloc.cold.116+0xb7/0x1bd [ 370.071685] lowmem_reserve[]: 0 0 3503 3503 [ 370.099038] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 370.103335] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 370.107649] ? lock_downgrade+0x900/0x900 [ 370.112464] lowmem_reserve[]: 0 0 0 0 [ 370.141345] ? trace_hardirqs_off+0xb8/0x310 [ 370.145457] 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 [ 370.149280] ? trace_hardirqs_off+0xb8/0x310 [ 370.153658] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 370.167172] __alloc_pages_slowpath+0x2651/0x2de0 [ 370.171547] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 370.186328] ? warn_alloc+0x120/0x120 [ 370.191135] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 370.205856] ? warn_alloc+0x120/0x120 [ 370.209634] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 370.218450] ? warn_alloc+0x120/0x120 [ 370.222228] 1360 total pagecache pages [ 370.230792] ? print_usage_bug+0xc0/0xc0 [ 370.234570] 0 pages in swap cache [ 370.238441] ? debug_object_activate+0x402/0x600 [ 370.242476] Swap cache stats: add 0, delete 0, find 0/0 [ 370.245921] ? print_usage_bug+0xc0/0xc0 [ 370.250652] Free swap = 0kB [ 370.256007] ? find_held_lock+0x36/0x1c0 [ 370.260041] Total swap = 0kB [ 370.263054] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 370.267089] 1965979 pages RAM [ 370.270101] ? should_fail+0x22d/0xd01 [ 370.275611] 0 pages HighMem/MovableOnly [ 370.278705] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 370.282565] 342854 pages reserved [ 370.286527] ? __lock_acquire+0x62f/0x4c20 [ 370.291617] 0 pages cma reserved [ 370.295093] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 370.299391] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 370.302648] ? __lock_acquire+0x62f/0x4c20 [ 370.302660] ? should_fail+0x22d/0xd01 [ 370.302682] ? mark_held_locks+0x130/0x130 [ 370.307821] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 370.314236] ? mark_held_locks+0x130/0x130 [ 370.318444] syz-fuzzer cpuset=/ mems_allowed=0 [ 370.322354] ? mod_timer+0x631/0x1560 [ 370.349329] ? zap_class+0x640/0x640 [ 370.353053] ? print_usage_bug+0xc0/0xc0 [ 370.357140] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 370.362709] ? check_preemption_disabled+0x48/0x280 [ 370.367734] ? __lock_is_held+0xb5/0x140 [ 370.371802] __alloc_pages_nodemask+0xad8/0xea0 [ 370.376482] ? zap_class+0x640/0x640 [ 370.380197] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 370.385217] ? find_held_lock+0x36/0x1c0 [ 370.389283] ? ____cache_alloc_node+0x1c7/0x1e0 [ 370.393963] ? lock_downgrade+0x900/0x900 [ 370.398109] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 370.403653] cache_grow_begin+0xa5/0x8c0 [ 370.407717] ? do_raw_spin_unlock+0xa7/0x330 [ 370.412154] fallback_alloc+0x204/0x2e0 [ 370.416166] ____cache_alloc_node+0x1c7/0x1e0 [ 370.420697] kmem_cache_alloc_node+0xe3/0x730 [ 370.425198] ? ipv6_get_ifaddr+0x42e/0x620 [ 370.429447] __alloc_skb+0x119/0x770 [ 370.433181] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 370.438463] ? netdev_alloc_frag+0x1f0/0x1f0 [ 370.442890] ? lock_downgrade+0x900/0x900 [ 370.447046] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 370.452583] ? refcount_sub_and_test_checked+0x203/0x310 [ 370.458050] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 370.463501] ? addrconf_rs_timer+0x690/0x690 [ 370.467938] ndisc_alloc_skb+0x144/0x340 [ 370.472006] ndisc_send_rs+0x331/0x6e0 [ 370.475917] addrconf_rs_timer+0x314/0x690 [ 370.480177] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 370.484429] call_timer_fn+0x272/0x920 [ 370.488326] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 370.492566] ? process_timeout+0x40/0x40 [ 370.496660] ? __run_timers+0x7da/0xc70 [ 370.500646] ? _raw_spin_unlock_irq+0x27/0x80 [ 370.505157] ? _raw_spin_unlock_irq+0x27/0x80 [ 370.509673] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 370.513921] ? lockdep_hardirqs_on+0x296/0x5b0 [ 370.518511] ? trace_hardirqs_on+0xbd/0x310 [ 370.522837] ? kasan_check_read+0x11/0x20 [ 370.526999] ? __run_timers+0x7da/0xc70 [ 370.530988] ? trace_hardirqs_off_caller+0x310/0x310 [ 370.536154] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 370.540383] __run_timers+0x7e5/0xc70 [ 370.544199] ? timer_fixup_init+0x70/0x70 [ 370.548354] ? kasan_check_read+0x11/0x20 [ 370.552519] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 370.557812] ? rcu_softirq_qs+0x20/0x20 [ 370.561807] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 370.567360] ? check_preemption_disabled+0x48/0x280 [ 370.572406] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 370.577180] ? retint_kernel+0x2d/0x2d [ 370.581070] ? trace_hardirqs_on_caller+0xc0/0x310 [ 370.586004] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 370.590762] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 370.596217] ? zap_class+0x640/0x640 [ 370.599935] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 370.605467] ? check_preemption_disabled+0x48/0x280 [ 370.610487] ? __lock_is_held+0xb5/0x140 [ 370.614543] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 370.620075] ? check_preemption_disabled+0x48/0x280 [ 370.625093] run_timer_softirq+0x52/0xb0 [ 370.629160] ? rcu_read_lock_sched_held+0x14f/0x180 [ 370.634171] __do_softirq+0x308/0xb7e [ 370.637969] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 370.642462] ? lock_downgrade+0x900/0x900 [ 370.646611] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 370.651733] ? pvclock_read_flags+0x160/0x160 [ 370.656249] ? lapic_next_event+0x5a/0x90 [ 370.660403] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 370.665961] ? kvm_clock_read+0x18/0x30 [ 370.669936] ? kvm_sched_clock_read+0x9/0x20 [ 370.674355] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 370.679926] ? check_preemption_disabled+0x48/0x280 [ 370.684956] irq_exit+0x17f/0x1c0 [ 370.688412] smp_apic_timer_interrupt+0x1cb/0x760 [ 370.693251] ? smp_reschedule_interrupt+0x109/0x650 [ 370.698266] ? smp_call_function_single_interrupt+0x650/0x650 [ 370.704150] ? interrupt_entry+0xb5/0xc0 [ 370.708212] ? trace_hardirqs_off_caller+0xbb/0x310 [ 370.713229] ? trace_hardirqs_off_caller+0xbb/0x310 [ 370.718264] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 370.723108] ? trace_hardirqs_on_caller+0x310/0x310 [ 370.728136] ? trace_hardirqs_on_caller+0x310/0x310 [ 370.733181] ? task_prio+0x50/0x50 [ 370.736721] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 370.742259] ? check_preemption_disabled+0x48/0x280 [ 370.747282] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 370.752140] apic_timer_interrupt+0xf/0x20 [ 370.756368] [ 370.758611] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 370.763590] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 370.782504] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 370.790206] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 370.797468] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 370.804747] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 370.812025] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 370.819295] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 370.826592] skb_clone+0x1bb/0x500 [ 370.830151] ? skb_split+0x11e0/0x11e0 [ 370.834050] ? preempt_notifier_register+0x200/0x200 [ 370.839149] ? __switch_to_asm+0x34/0x70 [ 370.843221] ? __switch_to_asm+0x34/0x70 [ 370.847309] ? __switch_to_asm+0x40/0x70 [ 370.851362] ? __switch_to_asm+0x34/0x70 [ 370.855417] ? __switch_to_asm+0x40/0x70 [ 370.859468] ? __switch_to_asm+0x40/0x70 [ 370.863552] ? __switch_to_asm+0x34/0x70 [ 370.867613] ? __switch_to_asm+0x34/0x70 [ 370.871667] ? __switch_to_asm+0x40/0x70 [ 370.875718] ? __switch_to_asm+0x34/0x70 [ 370.879779] bpf_clone_redirect+0xb9/0x490 [ 370.884016] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 370.889036] ? __sched_text_start+0x8/0x8 [ 370.893181] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 370.897948] ? find_held_lock+0x36/0x1c0 [ 370.902017] ? lock_acquire+0x1ed/0x520 [ 370.905992] ? bpf_test_run+0x3ee/0x7a0 [ 370.909982] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 370.915526] ? check_preemption_disabled+0x48/0x280 [ 370.920550] ? kasan_check_read+0x11/0x20 [ 370.924718] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 370.930018] ? rcu_softirq_qs+0x20/0x20 [ 370.933999] ? preempt_schedule+0x4d/0x60 [ 370.938171] ? ___preempt_schedule+0x16/0x18 [ 370.942584] ? bpf_test_run+0x271/0x7a0 [ 370.946582] ? netlink_diag_dump+0x2a0/0x2a0 [ 370.951282] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 370.956834] ? bpf_test_init.isra.10+0x70/0x100 [ 370.961507] ? bpf_prog_test_run_skb+0x762/0xd60 [ 370.966289] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 370.971144] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 370.976679] ? fput+0x130/0x1a0 [ 370.979961] ? __bpf_prog_get+0x9b/0x290 [ 370.984030] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 370.988874] ? bpf_prog_test_run+0x130/0x1a0 [ 370.993287] ? __x64_sys_bpf+0x3d8/0x520 [ 370.997350] ? bpf_prog_get+0x20/0x20 [ 371.001174] ? do_syscall_64+0x1b9/0x820 [ 371.005238] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 371.010607] ? syscall_return_slowpath+0x5e0/0x5e0 [ 371.015533] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 371.020378] ? trace_hardirqs_on_caller+0x310/0x310 [ 371.025435] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 371.030465] ? prepare_exit_to_usermode+0x291/0x3b0 [ 371.035531] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 371.040378] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 371.045772] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 371.045853] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 371.052697] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 371.052702] Call Trace: [ 371.052710] [ 371.052727] dump_stack+0x244/0x39d [ 371.052746] ? dump_stack_print_info.cold.1+0x20/0x20 [ 371.059317] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 371.068616] warn_alloc.cold.116+0xb7/0x1bd [ 371.071184] syz-executor4 cpuset=syz4 mems_allowed=0 [ 371.073330] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 371.107386] ? lock_downgrade+0x900/0x900 [ 371.111587] ? trace_hardirqs_off+0xb8/0x310 [ 371.116003] ? trace_hardirqs_off+0xb8/0x310 [ 371.120437] __alloc_pages_slowpath+0x2651/0x2de0 [ 371.125316] ? warn_alloc+0x120/0x120 [ 371.129128] ? print_usage_bug+0xc0/0xc0 [ 371.133189] ? warn_alloc+0x120/0x120 [ 371.136991] ? warn_alloc+0x120/0x120 [ 371.140788] ? print_usage_bug+0xc0/0xc0 [ 371.144884] ? print_usage_bug+0xc0/0xc0 [ 371.148954] ? __lock_acquire+0x62f/0x4c20 [ 371.153211] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 371.158749] ? should_fail+0x22d/0xd01 [ 371.162639] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 371.167758] ? __lock_acquire+0x62f/0x4c20 [ 371.171999] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 371.177130] ? __lock_acquire+0x62f/0x4c20 [ 371.181363] ? should_fail+0x22d/0xd01 [ 371.185276] ? find_held_lock+0x36/0x1c0 [ 371.189342] ? mark_held_locks+0x130/0x130 [ 371.193579] ? mark_held_locks+0x130/0x130 [ 371.197805] ? zap_class+0x640/0x640 [ 371.201510] ? zap_class+0x640/0x640 [ 371.205219] ? print_usage_bug+0xc0/0xc0 [ 371.209276] ? do_raw_spin_unlock+0xa7/0x330 [ 371.213677] ? zap_class+0x640/0x640 [ 371.217386] ? print_usage_bug+0xc0/0xc0 [ 371.221444] ? wq_watchdog_touch+0x9c/0xfe [ 371.225676] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 371.231212] ? check_preemption_disabled+0x48/0x280 [ 371.236231] ? __lock_is_held+0xb5/0x140 [ 371.240296] __alloc_pages_nodemask+0xad8/0xea0 [ 371.244962] ? zap_class+0x640/0x640 [ 371.248677] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 371.253698] ? find_held_lock+0x36/0x1c0 [ 371.257791] ? ____cache_alloc_node+0x1c7/0x1e0 [ 371.262454] ? lock_downgrade+0x900/0x900 [ 371.266616] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 371.272183] cache_grow_begin+0xa5/0x8c0 [ 371.276269] ? do_raw_spin_unlock+0xa7/0x330 [ 371.280693] fallback_alloc+0x204/0x2e0 [ 371.284668] ____cache_alloc_node+0x1c7/0x1e0 [ 371.289163] kmem_cache_alloc_node+0xe3/0x730 [ 371.293654] ? ipv6_get_ifaddr+0x42e/0x620 [ 371.297918] __alloc_skb+0x119/0x770 [ 371.301673] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 371.306984] ? netdev_alloc_frag+0x1f0/0x1f0 [ 371.311405] ? lock_downgrade+0x900/0x900 [ 371.315560] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 371.321092] ? refcount_sub_and_test_checked+0x203/0x310 [ 371.326576] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 371.332024] ? addrconf_rs_timer+0x690/0x690 [ 371.336447] ndisc_alloc_skb+0x144/0x340 [ 371.340508] ndisc_send_rs+0x331/0x6e0 [ 371.344429] addrconf_rs_timer+0x314/0x690 [ 371.348709] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 371.352978] call_timer_fn+0x272/0x920 [ 371.356893] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 371.361161] ? process_timeout+0x40/0x40 [ 371.365228] ? mark_held_locks+0xc7/0x130 [ 371.369381] ? _raw_spin_unlock_irq+0x27/0x80 [ 371.373869] ? _raw_spin_unlock_irq+0x27/0x80 [ 371.378359] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 371.382592] ? lockdep_hardirqs_on+0x296/0x5b0 [ 371.387174] ? trace_hardirqs_on+0xbd/0x310 [ 371.391504] ? kasan_check_read+0x11/0x20 [ 371.395647] ? __run_timers+0x7da/0xc70 [ 371.399620] ? trace_hardirqs_off_caller+0x310/0x310 [ 371.404722] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 371.408970] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 371.413196] __run_timers+0x7e5/0xc70 [ 371.416997] ? timer_fixup_init+0x70/0x70 [ 371.421160] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 371.426171] ? zap_class+0x640/0x640 [ 371.429915] ? print_usage_bug+0xc0/0xc0 [ 371.433978] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 371.439178] ? find_held_lock+0x36/0x1c0 [ 371.443250] ? zap_class+0x640/0x640 [ 371.446974] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 371.452517] ? check_preemption_disabled+0x48/0x280 [ 371.457549] ? __lock_is_held+0xb5/0x140 [ 371.461616] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 371.467161] ? check_preemption_disabled+0x48/0x280 [ 371.472188] run_timer_softirq+0x52/0xb0 [ 371.476252] ? rcu_read_lock_sched_held+0x14f/0x180 [ 371.481275] __do_softirq+0x308/0xb7e [ 371.485081] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 371.489591] ? lock_downgrade+0x900/0x900 [ 371.493788] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 371.498917] ? pvclock_read_flags+0x160/0x160 [ 371.503429] ? lapic_next_event+0x5a/0x90 [ 371.507581] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 371.513159] ? kvm_clock_read+0x18/0x30 [ 371.517177] ? kvm_sched_clock_read+0x9/0x20 [ 371.521626] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 371.527203] ? check_preemption_disabled+0x48/0x280 [ 371.532257] irq_exit+0x17f/0x1c0 [ 371.535734] smp_apic_timer_interrupt+0x1cb/0x760 [ 371.540587] ? smp_reschedule_interrupt+0x109/0x650 [ 371.545609] ? smp_call_function_single_interrupt+0x650/0x650 [ 371.551496] ? interrupt_entry+0xb5/0xc0 [ 371.555564] ? trace_hardirqs_off_caller+0xbb/0x310 [ 371.560620] ? trace_hardirqs_off_caller+0xbb/0x310 [ 371.565640] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 371.570486] ? trace_hardirqs_on_caller+0x310/0x310 [ 371.575565] ? trace_hardirqs_on_caller+0x310/0x310 [ 371.580616] ? task_prio+0x50/0x50 [ 371.584192] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 371.589732] ? check_preemption_disabled+0x48/0x280 [ 371.594753] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 371.599602] apic_timer_interrupt+0xf/0x20 [ 371.603836] [ 371.606089] RIP: 0010:lock_acquire+0x268/0x520 [ 371.610691] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 371.629600] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 371.637312] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 371.644574] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 371.651855] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 371.659134] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 371.666402] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 371.673697] ? lruvec_lru_size+0x450/0x450 [ 371.677934] ? kasan_check_read+0x11/0x20 [ 371.682106] ? lock_release+0xa00/0xa00 [ 371.686093] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 371.691060] down_read_trylock+0xda/0x140 [ 371.695204] ? shrink_slab+0x207/0x8c0 [ 371.699109] ? downgrade_write+0x270/0x270 [ 371.703363] shrink_slab+0x207/0x8c0 [ 371.707084] ? shrink_active_list+0x1f00/0x1f00 [ 371.711775] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 371.717404] ? __lock_acquire+0x62f/0x4c20 [ 371.721646] ? percpu_ref_get_many+0x240/0x240 [ 371.726249] ? print_usage_bug+0xc0/0xc0 [ 371.730317] shrink_node+0x431/0x16b0 [ 371.734138] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 371.739439] ? shrink_node_memcg+0x18f0/0x18f0 [ 371.744027] ? kvm_clock_read+0x18/0x30 [ 371.748002] ? ktime_get+0x2c1/0x400 [ 371.751750] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 371.756246] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 371.761789] ? __cpuset_node_allowed+0x19b/0x660 [ 371.766539] ? mark_held_locks+0x130/0x130 [ 371.770783] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 371.776489] ? zap_class+0x640/0x640 [ 371.780219] do_try_to_free_pages+0x3e7/0x1290 [ 371.784794] ? zap_class+0x640/0x640 [ 371.788531] ? shrink_node+0x16b0/0x16b0 [ 371.792591] ? __lock_is_held+0xb5/0x140 [ 371.796659] try_to_free_pages+0x4d0/0xb90 [ 371.800896] ? do_try_to_free_pages+0x1290/0x1290 [ 371.805745] ? lock_acquire+0x1ed/0x520 [ 371.809722] ? set_page_refcounted+0x280/0x280 [ 371.814340] ? lock_release+0xa00/0xa00 [ 371.818327] ? _raw_spin_unlock_irq+0x60/0x80 [ 371.822839] ? psi_memstall_enter+0x240/0x2b0 [ 371.827335] ? psi_memstall_tick+0x230/0x230 [ 371.831753] __alloc_pages_slowpath+0xa48/0x2de0 [ 371.836536] ? warn_alloc+0x120/0x120 [ 371.840340] ? mark_held_locks+0x130/0x130 [ 371.844578] ? find_get_entry+0xaae/0x1120 [ 371.848820] ? filemap_map_pages+0x1a20/0x1a20 [ 371.853434] ? zap_class+0x640/0x640 [ 371.857160] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 371.862704] ? check_preemption_disabled+0x48/0x280 [ 371.867742] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 371.873309] ? should_fail+0x22d/0xd01 [ 371.877208] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 371.882320] ? zap_class+0x640/0x640 [ 371.886065] ? __lock_is_held+0xb5/0x140 [ 371.890158] ? mark_held_locks+0x130/0x130 [ 371.894401] ? lock_release+0xa00/0xa00 [ 371.898392] ? perf_trace_sched_process_exec+0x860/0x860 [ 371.903846] ? xa_load+0x2ba/0x460 [ 371.907390] ? lock_downgrade+0x900/0x900 [ 371.911549] ? __might_sleep+0x95/0x190 [ 371.915531] __alloc_pages_nodemask+0xad8/0xea0 [ 371.920216] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 371.925242] ? __page_cache_alloc+0x191/0x5c0 [ 371.929741] ? xa_load+0x2e1/0x460 [ 371.933298] ? xa_clear_mark+0x40/0x40 [ 371.937206] ? zap_class+0x640/0x640 [ 371.940948] ? zap_class+0x640/0x640 [ 371.944686] ? zap_class+0x640/0x640 [ 371.948452] ? __do_page_cache_readahead+0x663/0x810 [ 371.953605] ? find_held_lock+0x36/0x1c0 [ 371.957704] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 371.963258] alloc_pages_current+0x173/0x350 [ 371.967713] __page_cache_alloc+0x38c/0x5c0 [ 371.972060] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 371.976992] ? kasan_check_read+0x11/0x20 [ 371.981196] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 371.986490] ? generic_perform_write+0x6a0/0x6a0 [ 371.991248] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 371.996782] ? check_preemption_disabled+0x48/0x280 [ 372.001807] filemap_fault+0x1595/0x25f0 [ 372.005902] ? __lock_page_or_retry+0xa00/0xa00 [ 372.010577] ? mark_held_locks+0x130/0x130 [ 372.014822] ? filemap_map_pages+0xd6b/0x1a20 [ 372.019318] ? lock_downgrade+0x900/0x900 [ 372.023465] ? check_preemption_disabled+0x48/0x280 [ 372.028481] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 372.033423] ? kasan_check_read+0x11/0x20 [ 372.037568] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 372.042841] ? rcu_softirq_qs+0x20/0x20 [ 372.046835] ? filemap_map_pages+0xd92/0x1a20 [ 372.051339] ? find_get_entries_tag+0x1400/0x1400 [ 372.056184] ? debug_object_destroy+0x2b0/0x2b0 [ 372.060863] ? lock_pi_update_atomic+0x150/0x150 [ 372.065627] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 372.071193] ? lock_acquire+0x1ed/0x520 [ 372.075170] ? ext4_filemap_fault+0x7a/0xad [ 372.079498] ? lock_release+0xa00/0xa00 [ 372.083469] ? perf_trace_sched_process_exec+0x860/0x860 [ 372.088924] ? print_usage_bug+0xc0/0xc0 [ 372.092987] ? print_usage_bug+0xc0/0xc0 [ 372.097065] ? down_read+0x8d/0x120 [ 372.100714] ? ext4_filemap_fault+0x7a/0xad [ 372.105053] ? __down_interruptible+0x700/0x700 [ 372.109731] ext4_filemap_fault+0x82/0xad [ 372.113903] __do_fault+0x100/0x6b0 [ 372.117540] ? find_held_lock+0x36/0x1c0 [ 372.121605] ? pmd_devmap_trans_unstable+0x220/0x220 [ 372.126711] ? mark_held_locks+0x130/0x130 [ 372.130945] ? mark_held_locks+0x130/0x130 [ 372.135194] ? kasan_check_read+0x11/0x20 [ 372.139346] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 372.144904] __handle_mm_fault+0x3ea0/0x5be0 [ 372.149328] ? perf_trace_lock+0x7a0/0x7a0 [ 372.153584] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 372.158444] ? __switch_to_asm+0x34/0x70 [ 372.162514] ? __switch_to_asm+0x34/0x70 [ 372.166627] ? zap_class+0x640/0x640 [ 372.170345] ? zap_class+0x640/0x640 [ 372.174063] ? __x64_sys_futex+0x53e/0x6a0 [ 372.178307] ? find_held_lock+0x36/0x1c0 [ 372.182381] ? handle_mm_fault+0x42a/0xc70 [ 372.186621] ? lock_downgrade+0x900/0x900 [ 372.190772] ? check_preemption_disabled+0x48/0x280 [ 372.195793] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 372.200725] ? kasan_check_read+0x11/0x20 [ 372.204874] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 372.210150] ? rcu_softirq_qs+0x20/0x20 [ 372.214158] ? trace_hardirqs_off_caller+0x310/0x310 [ 372.219284] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 372.224826] ? sync_mm_rss+0x9a/0x1c0 [ 372.228663] handle_mm_fault+0x54f/0xc70 [ 372.232732] ? __handle_mm_fault+0x5be0/0x5be0 [ 372.237318] ? find_vma+0x34/0x190 [ 372.240864] __do_page_fault+0x5e8/0xe60 [ 372.244933] ? trace_hardirqs_off+0xb8/0x310 [ 372.249353] do_page_fault+0xf2/0x7e0 [ 372.253154] ? vmalloc_sync_all+0x30/0x30 [ 372.257308] ? error_entry+0x70/0xd0 [ 372.261026] ? trace_hardirqs_off_caller+0xbb/0x310 [ 372.266044] ? trace_hardirqs_on_caller+0xc0/0x310 [ 372.270989] ? syscall_return_slowpath+0x5e0/0x5e0 [ 372.275917] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 372.280760] ? trace_hardirqs_on_caller+0x310/0x310 [ 372.285773] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 372.291227] ? prepare_exit_to_usermode+0x291/0x3b0 [ 372.296255] ? page_fault+0x8/0x30 [ 372.299908] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 372.304782] ? page_fault+0x8/0x30 [ 372.308322] page_fault+0x1e/0x30 [ 372.311767] RIP: 0033:0x45ddf3 [ 372.315006] Code: Bad RIP value. [ 372.318386] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 372.323753] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 372.331022] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 372.338320] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 372.345587] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 372.352851] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 372.360159] warn_alloc_show_mem: 1 callbacks suppressed [ 372.360171] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 372.360173] Mem-Info: [ 372.360204] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 372.360204] active_file:17 inactive_file:17 isolated_file:0 [ 372.360204] unevictable:0 dirty:4 writeback:0 unstable:0 [ 372.360204] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 372.360204] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 372.360204] free:13550 free_pcp:124 free_cma:0 [ 372.365556] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 372.372840] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 372.375260] Call Trace: [ 372.408327] 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 [ 372.417690] [ 372.445446] lowmem_reserve[]: 0 2818 6321 6321 [ 372.448037] dump_stack+0x244/0x39d [ 372.474109] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 372.476258] ? dump_stack_print_info.cold.1+0x20/0x20 [ 372.480813] lowmem_reserve[]: 0 0 3503 3503 [ 372.484445] warn_alloc.cold.116+0xb7/0x1bd [ 372.511734] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 372.516933] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 372.521225] lowmem_reserve[]: 0 0 0 0 [ 372.525538] ? lock_downgrade+0x900/0x900 [ 372.554441] 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 [ 372.559288] ? trace_hardirqs_off+0xb8/0x310 [ 372.563064] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 372.567216] ? trace_hardirqs_off+0xb8/0x310 [ 372.580714] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 372.585164] __alloc_pages_slowpath+0x2651/0x2de0 [ 372.599902] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 372.604341] ? warn_alloc+0x120/0x120 [ 372.619067] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 372.623924] ? print_usage_bug+0xc0/0xc0 [ 372.632728] 1360 total pagecache pages [ 372.636524] ? warn_alloc+0x120/0x120 [ 372.645098] 0 pages in swap cache [ 372.649174] ? warn_alloc+0x120/0x120 [ 372.653040] Swap cache stats: add 0, delete 0, find 0/0 [ 372.653050] Free swap = 0kB [ 372.656858] ? print_usage_bug+0xc0/0xc0 [ 372.660283] Total swap = 0kB [ 372.660291] 1965979 pages RAM [ 372.664106] ? print_usage_bug+0xc0/0xc0 [ 372.669430] 0 pages HighMem/MovableOnly [ 372.669439] 342854 pages reserved [ 372.672459] ? __lock_acquire+0x62f/0x4c20 [ 372.676489] 0 pages cma reserved [ 372.679505] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 372.682661] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 372.686639] ? should_fail+0x22d/0xd01 [ 372.690651] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 372.694036] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 372.698336] syz-fuzzer cpuset=/ mems_allowed=0 [ 372.701700] ? __lock_acquire+0x62f/0x4c20 [ 372.741711] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 372.746819] ? __lock_acquire+0x62f/0x4c20 [ 372.751066] ? should_fail+0x22d/0xd01 [ 372.754954] ? find_held_lock+0x36/0x1c0 [ 372.759023] ? mark_held_locks+0x130/0x130 [ 372.763274] ? mark_held_locks+0x130/0x130 [ 372.767508] ? zap_class+0x640/0x640 [ 372.771218] ? zap_class+0x640/0x640 [ 372.774929] ? print_usage_bug+0xc0/0xc0 [ 372.778981] ? do_raw_spin_unlock+0xa7/0x330 [ 372.783381] ? zap_class+0x640/0x640 [ 372.787093] ? print_usage_bug+0xc0/0xc0 [ 372.791186] ? wq_watchdog_touch+0x9c/0xfe [ 372.795426] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 372.800986] ? check_preemption_disabled+0x48/0x280 [ 372.806040] ? __lock_is_held+0xb5/0x140 [ 372.810106] __alloc_pages_nodemask+0xad8/0xea0 [ 372.814797] ? zap_class+0x640/0x640 [ 372.818530] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 372.823570] ? find_held_lock+0x36/0x1c0 [ 372.827670] ? ____cache_alloc_node+0x1c7/0x1e0 [ 372.832372] ? lock_downgrade+0x900/0x900 [ 372.836547] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 372.842101] cache_grow_begin+0xa5/0x8c0 [ 372.846165] ? do_raw_spin_unlock+0xa7/0x330 [ 372.850578] fallback_alloc+0x204/0x2e0 [ 372.854572] ____cache_alloc_node+0x1c7/0x1e0 [ 372.859097] kmem_cache_alloc_node+0xe3/0x730 [ 372.863608] ? ipv6_get_ifaddr+0x42e/0x620 [ 372.867846] __alloc_skb+0x119/0x770 [ 372.871551] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 372.876830] ? netdev_alloc_frag+0x1f0/0x1f0 [ 372.881249] ? lock_downgrade+0x900/0x900 [ 372.885423] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 372.890960] ? refcount_sub_and_test_checked+0x203/0x310 [ 372.896419] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 372.901920] ? addrconf_rs_timer+0x690/0x690 [ 372.906346] ndisc_alloc_skb+0x144/0x340 [ 372.910419] ndisc_send_rs+0x331/0x6e0 [ 372.914313] addrconf_rs_timer+0x314/0x690 [ 372.918570] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 372.922839] call_timer_fn+0x272/0x920 [ 372.926725] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 372.930958] ? process_timeout+0x40/0x40 [ 372.935058] ? __run_timers+0x7da/0xc70 [ 372.939030] ? _raw_spin_unlock_irq+0x27/0x80 [ 372.943522] ? _raw_spin_unlock_irq+0x27/0x80 [ 372.948177] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 372.952430] ? lockdep_hardirqs_on+0x296/0x5b0 [ 372.957014] ? trace_hardirqs_on+0xbd/0x310 [ 372.961334] ? kasan_check_read+0x11/0x20 [ 372.965481] ? __run_timers+0x7da/0xc70 [ 372.969454] ? trace_hardirqs_off_caller+0x310/0x310 [ 372.974560] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 372.978797] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 372.983044] __run_timers+0x7e5/0xc70 [ 372.986881] ? timer_fixup_init+0x70/0x70 [ 372.991049] ? kasan_check_read+0x11/0x20 [ 372.995212] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 373.000492] ? rcu_softirq_qs+0x20/0x20 [ 373.004468] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 373.010011] ? check_preemption_disabled+0x48/0x280 [ 373.015037] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 373.019808] ? retint_kernel+0x2d/0x2d [ 373.023697] ? trace_hardirqs_on_caller+0xc0/0x310 [ 373.028641] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 373.033442] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 373.038897] ? zap_class+0x640/0x640 [ 373.042617] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 373.048159] ? check_preemption_disabled+0x48/0x280 [ 373.053282] ? __lock_is_held+0xb5/0x140 [ 373.057346] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 373.062892] ? check_preemption_disabled+0x48/0x280 [ 373.067927] run_timer_softirq+0x52/0xb0 [ 373.072006] ? rcu_read_lock_sched_held+0x14f/0x180 [ 373.077027] __do_softirq+0x308/0xb7e [ 373.081009] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 373.085501] ? lock_downgrade+0x900/0x900 [ 373.089659] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 373.094773] ? pvclock_read_flags+0x160/0x160 [ 373.099270] ? lapic_next_event+0x5a/0x90 [ 373.103465] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 373.109019] ? kvm_clock_read+0x18/0x30 [ 373.113003] ? kvm_sched_clock_read+0x9/0x20 [ 373.117424] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 373.122983] ? check_preemption_disabled+0x48/0x280 [ 373.128012] irq_exit+0x17f/0x1c0 [ 373.131475] smp_apic_timer_interrupt+0x1cb/0x760 [ 373.136318] ? smp_reschedule_interrupt+0x109/0x650 [ 373.141339] ? smp_call_function_single_interrupt+0x650/0x650 [ 373.147225] ? interrupt_entry+0xb5/0xc0 [ 373.151287] ? trace_hardirqs_off_caller+0xbb/0x310 [ 373.156322] ? trace_hardirqs_off_caller+0xbb/0x310 [ 373.161367] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 373.166250] ? trace_hardirqs_on_caller+0x310/0x310 [ 373.171307] ? trace_hardirqs_on_caller+0x310/0x310 [ 373.176349] ? task_prio+0x50/0x50 [ 373.179932] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 373.185483] ? check_preemption_disabled+0x48/0x280 [ 373.190513] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 373.195366] apic_timer_interrupt+0xf/0x20 [ 373.199605] [ 373.201869] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 373.206816] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 373.225713] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 373.233433] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 373.240701] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 373.247966] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 373.255230] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 373.262496] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 373.269818] skb_clone+0x1bb/0x500 [ 373.273379] ? skb_split+0x11e0/0x11e0 [ 373.277293] ? preempt_notifier_register+0x200/0x200 [ 373.282402] ? __switch_to_asm+0x34/0x70 [ 373.286486] ? __switch_to_asm+0x34/0x70 [ 373.290556] ? __switch_to_asm+0x40/0x70 [ 373.294608] ? __switch_to_asm+0x34/0x70 [ 373.298666] ? __switch_to_asm+0x40/0x70 [ 373.302727] ? __switch_to_asm+0x40/0x70 [ 373.306797] ? __switch_to_asm+0x34/0x70 [ 373.310872] ? __switch_to_asm+0x34/0x70 [ 373.314928] ? __switch_to_asm+0x40/0x70 [ 373.318987] ? __switch_to_asm+0x34/0x70 [ 373.323050] bpf_clone_redirect+0xb9/0x490 [ 373.327293] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 373.332310] ? __sched_text_start+0x8/0x8 [ 373.336459] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 373.341220] ? find_held_lock+0x36/0x1c0 [ 373.345284] ? lock_acquire+0x1ed/0x520 [ 373.349264] ? bpf_test_run+0x3ee/0x7a0 [ 373.353239] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 373.358789] ? check_preemption_disabled+0x48/0x280 [ 373.363850] ? kasan_check_read+0x11/0x20 [ 373.368011] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 373.373288] ? rcu_softirq_qs+0x20/0x20 [ 373.377288] ? preempt_schedule+0x4d/0x60 [ 373.381446] ? ___preempt_schedule+0x16/0x18 [ 373.385860] ? bpf_test_run+0x271/0x7a0 [ 373.389867] ? netlink_diag_dump+0x2a0/0x2a0 [ 373.394298] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 373.399837] ? bpf_test_init.isra.10+0x70/0x100 [ 373.404510] ? bpf_prog_test_run_skb+0x762/0xd60 [ 373.409294] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 373.414146] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 373.419683] ? fput+0x130/0x1a0 [ 373.422966] ? __bpf_prog_get+0x9b/0x290 [ 373.427027] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 373.431881] ? bpf_prog_test_run+0x130/0x1a0 [ 373.436303] ? __x64_sys_bpf+0x3d8/0x520 [ 373.440373] ? bpf_prog_get+0x20/0x20 [ 373.444226] ? do_syscall_64+0x1b9/0x820 [ 373.448299] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 373.453688] ? syscall_return_slowpath+0x5e0/0x5e0 [ 373.458615] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 373.463458] ? trace_hardirqs_on_caller+0x310/0x310 [ 373.468473] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 373.473489] ? prepare_exit_to_usermode+0x291/0x3b0 [ 373.478513] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 373.483377] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 373.488767] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 373.488858] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 373.495703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 373.495708] Call Trace: [ 373.495725] [ 373.495742] dump_stack+0x244/0x39d [ 373.495773] ? dump_stack_print_info.cold.1+0x20/0x20 [ 373.502339] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 373.511603] warn_alloc.cold.116+0xb7/0x1bd [ 373.514157] syz-executor4 cpuset=syz4 mems_allowed=0 [ 373.516305] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 373.549809] ? lock_downgrade+0x900/0x900 [ 373.553975] ? trace_hardirqs_off+0xb8/0x310 [ 373.558395] ? trace_hardirqs_off+0xb8/0x310 [ 373.562815] __alloc_pages_slowpath+0x2651/0x2de0 [ 373.567683] ? warn_alloc+0x120/0x120 [ 373.571485] ? print_usage_bug+0xc0/0xc0 [ 373.575548] ? warn_alloc+0x120/0x120 [ 373.579349] ? warn_alloc+0x120/0x120 [ 373.583149] ? print_usage_bug+0xc0/0xc0 [ 373.587212] ? print_usage_bug+0xc0/0xc0 [ 373.591275] ? __lock_acquire+0x62f/0x4c20 [ 373.595512] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 373.601047] ? should_fail+0x22d/0xd01 [ 373.604936] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 373.610047] ? __lock_acquire+0x62f/0x4c20 [ 373.614277] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 373.619370] ? __lock_acquire+0x62f/0x4c20 [ 373.623599] ? should_fail+0x22d/0xd01 [ 373.627482] ? find_held_lock+0x36/0x1c0 [ 373.631550] ? mark_held_locks+0x130/0x130 [ 373.635795] ? mark_held_locks+0x130/0x130 [ 373.640022] ? zap_class+0x640/0x640 [ 373.643733] ? zap_class+0x640/0x640 [ 373.647474] ? print_usage_bug+0xc0/0xc0 [ 373.651555] ? do_raw_spin_unlock+0xa7/0x330 [ 373.655966] ? zap_class+0x640/0x640 [ 373.659688] ? print_usage_bug+0xc0/0xc0 [ 373.663747] ? wq_watchdog_touch+0x9c/0xfe [ 373.667980] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 373.673516] ? check_preemption_disabled+0x48/0x280 [ 373.678545] ? __lock_is_held+0xb5/0x140 [ 373.682625] __alloc_pages_nodemask+0xad8/0xea0 [ 373.687292] ? zap_class+0x640/0x640 [ 373.691004] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 373.696023] ? find_held_lock+0x36/0x1c0 [ 373.700087] ? ____cache_alloc_node+0x1c7/0x1e0 [ 373.704771] ? lock_downgrade+0x900/0x900 [ 373.708951] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 373.714504] cache_grow_begin+0xa5/0x8c0 [ 373.718557] ? do_raw_spin_unlock+0xa7/0x330 [ 373.722984] fallback_alloc+0x204/0x2e0 [ 373.726961] ____cache_alloc_node+0x1c7/0x1e0 [ 373.731456] kmem_cache_alloc_node+0xe3/0x730 [ 373.735944] ? ipv6_get_ifaddr+0x42e/0x620 [ 373.740183] __alloc_skb+0x119/0x770 [ 373.743894] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 373.749176] ? netdev_alloc_frag+0x1f0/0x1f0 [ 373.753602] ? lock_downgrade+0x900/0x900 [ 373.757749] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 373.763279] ? refcount_sub_and_test_checked+0x203/0x310 [ 373.768725] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 373.774188] ? addrconf_rs_timer+0x690/0x690 [ 373.778628] ndisc_alloc_skb+0x144/0x340 [ 373.782685] ndisc_send_rs+0x331/0x6e0 [ 373.786583] addrconf_rs_timer+0x314/0x690 [ 373.790831] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 373.795106] call_timer_fn+0x272/0x920 [ 373.798997] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 373.803273] ? process_timeout+0x40/0x40 [ 373.807336] ? mark_held_locks+0xc7/0x130 [ 373.811480] ? _raw_spin_unlock_irq+0x27/0x80 [ 373.815990] ? _raw_spin_unlock_irq+0x27/0x80 [ 373.820496] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 373.824740] ? lockdep_hardirqs_on+0x296/0x5b0 [ 373.829319] ? trace_hardirqs_on+0xbd/0x310 [ 373.833635] ? kasan_check_read+0x11/0x20 [ 373.837774] ? __run_timers+0x7da/0xc70 [ 373.841743] ? trace_hardirqs_off_caller+0x310/0x310 [ 373.846861] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 373.851164] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 373.855419] __run_timers+0x7e5/0xc70 [ 373.859237] ? timer_fixup_init+0x70/0x70 [ 373.863417] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 373.868466] ? zap_class+0x640/0x640 [ 373.872197] ? print_usage_bug+0xc0/0xc0 [ 373.876350] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 373.881540] ? find_held_lock+0x36/0x1c0 [ 373.885599] ? zap_class+0x640/0x640 [ 373.889312] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 373.894896] ? check_preemption_disabled+0x48/0x280 [ 373.899919] ? __lock_is_held+0xb5/0x140 [ 373.903977] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 373.909515] ? check_preemption_disabled+0x48/0x280 [ 373.914534] run_timer_softirq+0x52/0xb0 [ 373.918639] ? rcu_read_lock_sched_held+0x14f/0x180 [ 373.923687] __do_softirq+0x308/0xb7e [ 373.927491] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 373.931986] ? lock_downgrade+0x900/0x900 [ 373.936145] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 373.941262] ? pvclock_read_flags+0x160/0x160 [ 373.945756] ? lapic_next_event+0x5a/0x90 [ 373.949941] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 373.955488] ? kvm_clock_read+0x18/0x30 [ 373.959462] ? kvm_sched_clock_read+0x9/0x20 [ 373.963873] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 373.969429] ? check_preemption_disabled+0x48/0x280 [ 373.974481] irq_exit+0x17f/0x1c0 [ 373.977937] smp_apic_timer_interrupt+0x1cb/0x760 [ 373.982785] ? smp_reschedule_interrupt+0x109/0x650 [ 373.987799] ? smp_call_function_single_interrupt+0x650/0x650 [ 373.993697] ? interrupt_entry+0xb5/0xc0 [ 373.997755] ? trace_hardirqs_off_caller+0xbb/0x310 [ 374.002768] ? trace_hardirqs_off_caller+0xbb/0x310 [ 374.007785] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 374.012620] ? trace_hardirqs_on_caller+0x310/0x310 [ 374.017639] ? trace_hardirqs_on_caller+0x310/0x310 [ 374.022654] ? task_prio+0x50/0x50 [ 374.026190] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 374.031732] ? check_preemption_disabled+0x48/0x280 [ 374.036793] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 374.041635] apic_timer_interrupt+0xf/0x20 [ 374.045868] [ 374.048100] RIP: 0010:lock_acquire+0x268/0x520 [ 374.052682] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 374.071590] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 374.079292] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 374.086571] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 374.093833] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 374.101093] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 374.108378] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 374.115668] ? lruvec_lru_size+0x450/0x450 [ 374.119924] ? kasan_check_read+0x11/0x20 [ 374.124128] ? lock_release+0xa00/0xa00 [ 374.128140] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 374.133071] down_read_trylock+0xda/0x140 [ 374.137276] ? shrink_slab+0x207/0x8c0 [ 374.141156] ? downgrade_write+0x270/0x270 [ 374.145399] shrink_slab+0x207/0x8c0 [ 374.149107] ? shrink_active_list+0x1f00/0x1f00 [ 374.153791] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 374.159426] ? __lock_acquire+0x62f/0x4c20 [ 374.163684] ? percpu_ref_get_many+0x240/0x240 [ 374.168408] ? print_usage_bug+0xc0/0xc0 [ 374.172491] shrink_node+0x431/0x16b0 [ 374.176304] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 374.181608] ? shrink_node_memcg+0x18f0/0x18f0 [ 374.186247] ? kvm_clock_read+0x18/0x30 [ 374.190229] ? ktime_get+0x2c1/0x400 [ 374.193939] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 374.198447] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 374.203980] ? __cpuset_node_allowed+0x19b/0x660 [ 374.208728] ? mark_held_locks+0x130/0x130 [ 374.212959] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 374.218678] ? zap_class+0x640/0x640 [ 374.222457] do_try_to_free_pages+0x3e7/0x1290 [ 374.227034] ? zap_class+0x640/0x640 [ 374.230757] ? shrink_node+0x16b0/0x16b0 [ 374.234820] ? __lock_is_held+0xb5/0x140 [ 374.238927] try_to_free_pages+0x4d0/0xb90 [ 374.243192] ? do_try_to_free_pages+0x1290/0x1290 [ 374.248043] ? lock_acquire+0x1ed/0x520 [ 374.252015] ? set_page_refcounted+0x280/0x280 [ 374.256596] ? lock_release+0xa00/0xa00 [ 374.260564] ? _raw_spin_unlock_irq+0x60/0x80 [ 374.265050] ? psi_memstall_enter+0x240/0x2b0 [ 374.269550] ? psi_memstall_tick+0x230/0x230 [ 374.273965] __alloc_pages_slowpath+0xa48/0x2de0 [ 374.278738] ? warn_alloc+0x120/0x120 [ 374.282532] ? mark_held_locks+0x130/0x130 [ 374.286822] ? find_get_entry+0xaae/0x1120 [ 374.291071] ? filemap_map_pages+0x1a20/0x1a20 [ 374.295649] ? zap_class+0x640/0x640 [ 374.299362] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 374.304911] ? check_preemption_disabled+0x48/0x280 [ 374.309953] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 374.315487] ? should_fail+0x22d/0xd01 [ 374.319388] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 374.324549] ? zap_class+0x640/0x640 [ 374.328309] ? __lock_is_held+0xb5/0x140 [ 374.332392] ? mark_held_locks+0x130/0x130 [ 374.336637] ? lock_release+0xa00/0xa00 [ 374.340621] ? perf_trace_sched_process_exec+0x860/0x860 [ 374.346064] ? xa_load+0x2ba/0x460 [ 374.349626] ? lock_downgrade+0x900/0x900 [ 374.353783] ? __might_sleep+0x95/0x190 [ 374.357756] __alloc_pages_nodemask+0xad8/0xea0 [ 374.362441] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 374.367471] ? __page_cache_alloc+0x191/0x5c0 [ 374.371956] ? xa_load+0x2e1/0x460 [ 374.375490] ? xa_clear_mark+0x40/0x40 [ 374.379370] ? zap_class+0x640/0x640 [ 374.383084] ? zap_class+0x640/0x640 [ 374.386798] ? zap_class+0x640/0x640 [ 374.390518] ? __do_page_cache_readahead+0x663/0x810 [ 374.395618] ? find_held_lock+0x36/0x1c0 [ 374.399675] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 374.405213] alloc_pages_current+0x173/0x350 [ 374.409621] __page_cache_alloc+0x38c/0x5c0 [ 374.413952] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 374.418876] ? kasan_check_read+0x11/0x20 [ 374.423023] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 374.428302] ? generic_perform_write+0x6a0/0x6a0 [ 374.433059] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 374.438597] ? check_preemption_disabled+0x48/0x280 [ 374.443619] filemap_fault+0x1595/0x25f0 [ 374.447692] ? __lock_page_or_retry+0xa00/0xa00 [ 374.452359] ? mark_held_locks+0x130/0x130 [ 374.456600] ? filemap_map_pages+0xd6b/0x1a20 [ 374.461092] ? lock_downgrade+0x900/0x900 [ 374.465262] ? check_preemption_disabled+0x48/0x280 [ 374.470355] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 374.475308] ? kasan_check_read+0x11/0x20 [ 374.479451] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 374.484728] ? rcu_softirq_qs+0x20/0x20 [ 374.488715] ? filemap_map_pages+0xd92/0x1a20 [ 374.493251] ? find_get_entries_tag+0x1400/0x1400 [ 374.498093] ? debug_object_destroy+0x2b0/0x2b0 [ 374.502775] ? lock_pi_update_atomic+0x150/0x150 [ 374.507541] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 374.513092] ? lock_acquire+0x1ed/0x520 [ 374.517074] ? ext4_filemap_fault+0x7a/0xad [ 374.521421] ? lock_release+0xa00/0xa00 [ 374.525397] ? perf_trace_sched_process_exec+0x860/0x860 [ 374.530851] ? print_usage_bug+0xc0/0xc0 [ 374.534916] ? print_usage_bug+0xc0/0xc0 [ 374.538992] ? down_read+0x8d/0x120 [ 374.542644] ? ext4_filemap_fault+0x7a/0xad [ 374.546967] ? __down_interruptible+0x700/0x700 [ 374.551644] ext4_filemap_fault+0x82/0xad [ 374.555795] __do_fault+0x100/0x6b0 [ 374.559432] ? find_held_lock+0x36/0x1c0 [ 374.563497] ? pmd_devmap_trans_unstable+0x220/0x220 [ 374.568603] ? mark_held_locks+0x130/0x130 [ 374.572843] ? mark_held_locks+0x130/0x130 [ 374.577105] ? kasan_check_read+0x11/0x20 [ 374.581264] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 374.586809] __handle_mm_fault+0x3ea0/0x5be0 [ 374.591217] ? perf_trace_lock+0x7a0/0x7a0 [ 374.595479] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 374.600333] ? __switch_to_asm+0x34/0x70 [ 374.604391] ? __switch_to_asm+0x34/0x70 [ 374.608471] ? zap_class+0x640/0x640 [ 374.612188] ? zap_class+0x640/0x640 [ 374.615904] ? __x64_sys_futex+0x53e/0x6a0 [ 374.620161] ? find_held_lock+0x36/0x1c0 [ 374.624230] ? handle_mm_fault+0x42a/0xc70 [ 374.628467] ? lock_downgrade+0x900/0x900 [ 374.632613] ? check_preemption_disabled+0x48/0x280 [ 374.637643] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 374.642580] ? kasan_check_read+0x11/0x20 [ 374.646724] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 374.651992] ? rcu_softirq_qs+0x20/0x20 [ 374.655962] ? trace_hardirqs_off_caller+0x310/0x310 [ 374.661066] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 374.666643] ? sync_mm_rss+0x9a/0x1c0 [ 374.670475] handle_mm_fault+0x54f/0xc70 [ 374.674548] ? __handle_mm_fault+0x5be0/0x5be0 [ 374.679182] ? find_vma+0x34/0x190 [ 374.682736] __do_page_fault+0x5e8/0xe60 [ 374.686813] ? trace_hardirqs_off+0xb8/0x310 [ 374.691774] do_page_fault+0xf2/0x7e0 [ 374.695569] ? vmalloc_sync_all+0x30/0x30 [ 374.699741] ? error_entry+0x70/0xd0 [ 374.703478] ? trace_hardirqs_off_caller+0xbb/0x310 [ 374.708490] ? trace_hardirqs_on_caller+0xc0/0x310 [ 374.713427] ? syscall_return_slowpath+0x5e0/0x5e0 [ 374.718351] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 374.723209] ? trace_hardirqs_on_caller+0x310/0x310 [ 374.728215] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 374.733663] ? prepare_exit_to_usermode+0x291/0x3b0 [ 374.738671] ? page_fault+0x8/0x30 [ 374.742222] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 374.747059] ? page_fault+0x8/0x30 [ 374.750594] page_fault+0x1e/0x30 [ 374.754035] RIP: 0033:0x45ddf3 [ 374.757251] Code: Bad RIP value. [ 374.760606] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 374.765967] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 374.773224] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 374.780498] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 374.787775] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 374.795038] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 374.802326] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 374.802332] warn_alloc_show_mem: 1 callbacks suppressed [ 374.802338] Mem-Info: [ 374.809606] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 374.814965] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 374.814965] active_file:17 inactive_file:17 isolated_file:0 [ 374.814965] unevictable:0 dirty:4 writeback:0 unstable:0 [ 374.814965] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 374.814965] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 374.814965] free:13550 free_pcp:124 free_cma:0 [ 374.817337] Call Trace: [ 374.826718] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 374.859735] [ 374.862304] 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 [ 374.890054] dump_stack+0x244/0x39d [ 374.892177] lowmem_reserve[]: 0 2818 6321 6321 [ 374.918281] ? dump_stack_print_info.cold.1+0x20/0x20 [ 374.921906] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 374.926485] warn_alloc.cold.116+0xb7/0x1bd [ 374.931639] lowmem_reserve[]: 0 0 3503 3503 [ 374.959223] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 374.963519] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 374.967847] ? lock_downgrade+0x900/0x900 [ 374.972662] lowmem_reserve[]: 0 0 0 0 [ 375.001556] ? trace_hardirqs_off+0xb8/0x310 [ 375.005669] 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 [ 375.009457] ? trace_hardirqs_off+0xb8/0x310 [ 375.013847] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 375.027360] __alloc_pages_slowpath+0x2651/0x2de0 [ 375.031739] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 375.046482] ? warn_alloc+0x120/0x120 [ 375.051282] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 375.066000] ? print_usage_bug+0xc0/0xc0 [ 375.069779] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 375.078592] ? warn_alloc+0x120/0x120 [ 375.083149] 1360 total pagecache pages [ 375.091714] ? warn_alloc+0x120/0x120 [ 375.095507] 0 pages in swap cache [ 375.099375] ? print_usage_bug+0xc0/0xc0 [ 375.103176] Swap cache stats: add 0, delete 0, find 0/0 [ 375.106617] ? kvm_clock_read+0x18/0x30 [ 375.110665] Free swap = 0kB [ 375.116058] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 375.120019] Total swap = 0kB [ 375.123027] ? print_usage_bug+0xc0/0xc0 [ 375.128015] 1965979 pages RAM [ 375.131036] ? __lock_acquire+0x62f/0x4c20 [ 375.135070] 0 pages HighMem/MovableOnly [ 375.138166] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 375.142383] 342854 pages reserved [ 375.146373] ? should_fail+0x22d/0xd01 [ 375.151894] 0 pages cma reserved [ 375.155343] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 375.159270] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 375.162554] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 375.162567] ? __lock_acquire+0x62f/0x4c20 [ 375.162582] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 375.167901] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 375.174312] ? __lock_acquire+0x62f/0x4c20 [ 375.179389] syz-fuzzer cpuset=/ mems_allowed=0 [ 375.183613] ? should_fail+0x22d/0xd01 [ 375.183657] ? rcu_irq_exit+0x1a2/0x390 [ 375.215572] ? mark_held_locks+0x130/0x130 [ 375.219819] ? mark_held_locks+0x130/0x130 [ 375.224066] ? mark_held_locks+0xc7/0x130 [ 375.228211] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 375.233241] ? zap_class+0x640/0x640 [ 375.236959] ? print_usage_bug+0xc0/0xc0 [ 375.241035] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 375.246577] ? check_preemption_disabled+0x48/0x280 [ 375.251628] ? __lock_is_held+0xb5/0x140 [ 375.255696] __alloc_pages_nodemask+0xad8/0xea0 [ 375.260362] ? zap_class+0x640/0x640 [ 375.264086] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 375.269108] ? find_held_lock+0x36/0x1c0 [ 375.273200] ? ____cache_alloc_node+0x1c7/0x1e0 [ 375.277863] ? lock_downgrade+0x900/0x900 [ 375.282011] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 375.287548] cache_grow_begin+0xa5/0x8c0 [ 375.291605] ? do_raw_spin_unlock+0xa7/0x330 [ 375.296028] fallback_alloc+0x204/0x2e0 [ 375.300016] ____cache_alloc_node+0x1c7/0x1e0 [ 375.304511] kmem_cache_alloc_node+0xe3/0x730 [ 375.309035] ? ipv6_get_ifaddr+0x42e/0x620 [ 375.313277] __alloc_skb+0x119/0x770 [ 375.316983] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 375.322270] ? netdev_alloc_frag+0x1f0/0x1f0 [ 375.326706] ? lock_downgrade+0x900/0x900 [ 375.330857] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 375.336410] ? refcount_sub_and_test_checked+0x203/0x310 [ 375.341891] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 375.347332] ? addrconf_rs_timer+0x690/0x690 [ 375.351761] ndisc_alloc_skb+0x144/0x340 [ 375.355817] ndisc_send_rs+0x331/0x6e0 [ 375.359707] addrconf_rs_timer+0x314/0x690 [ 375.363941] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 375.368180] call_timer_fn+0x272/0x920 [ 375.372060] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 375.376288] ? process_timeout+0x40/0x40 [ 375.380348] ? __run_timers+0x7da/0xc70 [ 375.384318] ? _raw_spin_unlock_irq+0x27/0x80 [ 375.388807] ? _raw_spin_unlock_irq+0x27/0x80 [ 375.393296] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 375.397555] ? lockdep_hardirqs_on+0x296/0x5b0 [ 375.402140] ? trace_hardirqs_on+0xbd/0x310 [ 375.406471] ? kasan_check_read+0x11/0x20 [ 375.410626] ? __run_timers+0x7da/0xc70 [ 375.414594] ? trace_hardirqs_off_caller+0x310/0x310 [ 375.419695] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 375.423948] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 375.428180] __run_timers+0x7e5/0xc70 [ 375.432005] ? timer_fixup_init+0x70/0x70 [ 375.436185] ? kasan_check_read+0x11/0x20 [ 375.440329] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 375.445600] ? rcu_softirq_qs+0x20/0x20 [ 375.449600] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 375.455156] ? check_preemption_disabled+0x48/0x280 [ 375.460181] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 375.464970] ? retint_kernel+0x2d/0x2d [ 375.468856] ? trace_hardirqs_on_caller+0xc0/0x310 [ 375.473801] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 375.478557] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 375.484007] ? zap_class+0x640/0x640 [ 375.487725] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 375.493262] ? check_preemption_disabled+0x48/0x280 [ 375.498283] ? __lock_is_held+0xb5/0x140 [ 375.502359] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 375.507894] ? check_preemption_disabled+0x48/0x280 [ 375.512909] run_timer_softirq+0x52/0xb0 [ 375.516968] ? rcu_read_lock_sched_held+0x14f/0x180 [ 375.521981] __do_softirq+0x308/0xb7e [ 375.525794] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 375.530283] ? lock_downgrade+0x900/0x900 [ 375.534428] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 375.539532] ? pvclock_read_flags+0x160/0x160 [ 375.544053] ? lapic_next_event+0x5a/0x90 [ 375.548210] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 375.553748] ? kvm_clock_read+0x18/0x30 [ 375.557750] ? kvm_sched_clock_read+0x9/0x20 [ 375.562188] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 375.567724] ? check_preemption_disabled+0x48/0x280 [ 375.572744] irq_exit+0x17f/0x1c0 [ 375.576204] smp_apic_timer_interrupt+0x1cb/0x760 [ 375.581044] ? smp_reschedule_interrupt+0x109/0x650 [ 375.586055] ? smp_call_function_single_interrupt+0x650/0x650 [ 375.591948] ? interrupt_entry+0xb5/0xc0 [ 375.596020] ? trace_hardirqs_off_caller+0xbb/0x310 [ 375.601030] ? trace_hardirqs_off_caller+0xbb/0x310 [ 375.606049] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 375.610908] ? trace_hardirqs_on_caller+0x310/0x310 [ 375.615925] ? trace_hardirqs_on_caller+0x310/0x310 [ 375.620940] ? task_prio+0x50/0x50 [ 375.624479] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 375.630019] ? check_preemption_disabled+0x48/0x280 [ 375.635039] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 375.639902] apic_timer_interrupt+0xf/0x20 [ 375.644155] [ 375.646413] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 375.651347] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 375.670249] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 375.677954] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 375.685224] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 375.692491] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 375.699758] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 375.707024] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 375.714340] skb_clone+0x1bb/0x500 [ 375.717879] ? skb_split+0x11e0/0x11e0 [ 375.721769] ? preempt_notifier_register+0x200/0x200 [ 375.726872] ? __switch_to_asm+0x34/0x70 [ 375.730943] ? __switch_to_asm+0x34/0x70 [ 375.734996] ? __switch_to_asm+0x40/0x70 [ 375.739048] ? __switch_to_asm+0x34/0x70 [ 375.743099] ? __switch_to_asm+0x40/0x70 [ 375.747157] ? __switch_to_asm+0x40/0x70 [ 375.751207] ? __switch_to_asm+0x34/0x70 [ 375.755262] ? __switch_to_asm+0x34/0x70 [ 375.759321] ? __switch_to_asm+0x40/0x70 [ 375.763373] ? __switch_to_asm+0x34/0x70 [ 375.767498] bpf_clone_redirect+0xb9/0x490 [ 375.771755] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 375.776773] ? __sched_text_start+0x8/0x8 [ 375.780914] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 375.785672] ? find_held_lock+0x36/0x1c0 [ 375.789741] ? lock_acquire+0x1ed/0x520 [ 375.793725] ? bpf_test_run+0x3ee/0x7a0 [ 375.797709] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 375.803247] ? check_preemption_disabled+0x48/0x280 [ 375.808266] ? kasan_check_read+0x11/0x20 [ 375.812427] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 375.817700] ? rcu_softirq_qs+0x20/0x20 [ 375.821675] ? preempt_schedule+0x4d/0x60 [ 375.825832] ? ___preempt_schedule+0x16/0x18 [ 375.830244] ? bpf_test_run+0x271/0x7a0 [ 375.834222] ? netlink_diag_dump+0x2a0/0x2a0 [ 375.838623] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 375.844160] ? bpf_test_init.isra.10+0x70/0x100 [ 375.848829] ? bpf_prog_test_run_skb+0x762/0xd60 [ 375.853587] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 375.858433] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 375.863979] ? fput+0x130/0x1a0 [ 375.867257] ? __bpf_prog_get+0x9b/0x290 [ 375.871317] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 375.876184] ? bpf_prog_test_run+0x130/0x1a0 [ 375.880612] ? __x64_sys_bpf+0x3d8/0x520 [ 375.884689] ? bpf_prog_get+0x20/0x20 [ 375.888529] ? do_syscall_64+0x1b9/0x820 [ 375.892606] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 375.897970] ? syscall_return_slowpath+0x5e0/0x5e0 [ 375.902893] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 375.907734] ? trace_hardirqs_on_caller+0x310/0x310 [ 375.912753] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 375.917771] ? prepare_exit_to_usermode+0x291/0x3b0 [ 375.922799] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 375.927650] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 375.933028] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 375.933160] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 375.939977] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 375.946540] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 375.955786] Call Trace: [ 375.966249] syz-executor4 cpuset=syz4 mems_allowed=0 [ 375.968814] [ 375.976086] dump_stack+0x244/0x39d [ 375.979722] ? dump_stack_print_info.cold.1+0x20/0x20 [ 375.984927] warn_alloc.cold.116+0xb7/0x1bd [ 375.989247] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 375.994090] ? lock_downgrade+0x900/0x900 [ 375.998246] ? trace_hardirqs_off+0xb8/0x310 [ 376.002652] ? trace_hardirqs_off+0xb8/0x310 [ 376.007069] __alloc_pages_slowpath+0x2651/0x2de0 [ 376.011943] ? warn_alloc+0x120/0x120 [ 376.015744] ? print_usage_bug+0xc0/0xc0 [ 376.019826] ? warn_alloc+0x120/0x120 [ 376.023631] ? warn_alloc+0x120/0x120 [ 376.027443] ? print_usage_bug+0xc0/0xc0 [ 376.031509] ? print_usage_bug+0xc0/0xc0 [ 376.035568] ? __lock_acquire+0x62f/0x4c20 [ 376.039819] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 376.045360] ? should_fail+0x22d/0xd01 [ 376.049253] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 376.054357] ? __lock_acquire+0x62f/0x4c20 [ 376.058595] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 376.063696] ? __lock_acquire+0x62f/0x4c20 [ 376.067925] ? should_fail+0x22d/0xd01 [ 376.071805] ? find_held_lock+0x36/0x1c0 [ 376.075866] ? mark_held_locks+0x130/0x130 [ 376.080101] ? mark_held_locks+0x130/0x130 [ 376.084333] ? zap_class+0x640/0x640 [ 376.088042] ? zap_class+0x640/0x640 [ 376.091756] ? print_usage_bug+0xc0/0xc0 [ 376.095858] ? do_raw_spin_unlock+0xa7/0x330 [ 376.100286] ? zap_class+0x640/0x640 [ 376.104014] ? print_usage_bug+0xc0/0xc0 [ 376.108071] ? wq_watchdog_touch+0x9c/0xfe [ 376.112302] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 376.117849] ? check_preemption_disabled+0x48/0x280 [ 376.122879] ? __lock_is_held+0xb5/0x140 [ 376.126966] __alloc_pages_nodemask+0xad8/0xea0 [ 376.131674] ? zap_class+0x640/0x640 [ 376.135401] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 376.140451] ? find_held_lock+0x36/0x1c0 [ 376.144526] ? ____cache_alloc_node+0x1c7/0x1e0 [ 376.149218] ? lock_downgrade+0x900/0x900 [ 376.153379] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 376.158928] cache_grow_begin+0xa5/0x8c0 [ 376.163019] ? do_raw_spin_unlock+0xa7/0x330 [ 376.167458] fallback_alloc+0x204/0x2e0 [ 376.171446] ____cache_alloc_node+0x1c7/0x1e0 [ 376.175940] kmem_cache_alloc_node+0xe3/0x730 [ 376.180427] ? ipv6_get_ifaddr+0x42e/0x620 [ 376.184699] __alloc_skb+0x119/0x770 [ 376.188416] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 376.193699] ? netdev_alloc_frag+0x1f0/0x1f0 [ 376.198094] ? lock_downgrade+0x900/0x900 [ 376.202276] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 376.207804] ? refcount_sub_and_test_checked+0x203/0x310 [ 376.213253] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 376.218697] ? addrconf_rs_timer+0x690/0x690 [ 376.223145] ndisc_alloc_skb+0x144/0x340 [ 376.227239] ndisc_send_rs+0x331/0x6e0 [ 376.231182] addrconf_rs_timer+0x314/0x690 [ 376.235450] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 376.239703] call_timer_fn+0x272/0x920 [ 376.243588] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 376.247816] ? process_timeout+0x40/0x40 [ 376.251880] ? mark_held_locks+0xc7/0x130 [ 376.256032] ? _raw_spin_unlock_irq+0x27/0x80 [ 376.260521] ? _raw_spin_unlock_irq+0x27/0x80 [ 376.265009] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 376.269235] ? lockdep_hardirqs_on+0x296/0x5b0 [ 376.273870] ? trace_hardirqs_on+0xbd/0x310 [ 376.278218] ? kasan_check_read+0x11/0x20 [ 376.282357] ? __run_timers+0x7da/0xc70 [ 376.286328] ? trace_hardirqs_off_caller+0x310/0x310 [ 376.291461] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 376.295693] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 376.299921] __run_timers+0x7e5/0xc70 [ 376.303760] ? timer_fixup_init+0x70/0x70 [ 376.307919] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 376.312980] ? zap_class+0x640/0x640 [ 376.316711] ? print_usage_bug+0xc0/0xc0 [ 376.320781] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 376.325989] ? find_held_lock+0x36/0x1c0 [ 376.330049] ? zap_class+0x640/0x640 [ 376.333759] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 376.339291] ? check_preemption_disabled+0x48/0x280 [ 376.344334] ? __lock_is_held+0xb5/0x140 [ 376.348419] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 376.353949] ? check_preemption_disabled+0x48/0x280 [ 376.358959] run_timer_softirq+0x52/0xb0 [ 376.363012] ? rcu_read_lock_sched_held+0x14f/0x180 [ 376.368030] __do_softirq+0x308/0xb7e [ 376.371863] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 376.376358] ? lock_downgrade+0x900/0x900 [ 376.380507] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 376.385626] ? pvclock_read_flags+0x160/0x160 [ 376.390138] ? lapic_next_event+0x5a/0x90 [ 376.394284] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 376.399835] ? kvm_clock_read+0x18/0x30 [ 376.403818] ? kvm_sched_clock_read+0x9/0x20 [ 376.408226] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 376.413760] ? check_preemption_disabled+0x48/0x280 [ 376.418789] irq_exit+0x17f/0x1c0 [ 376.422254] smp_apic_timer_interrupt+0x1cb/0x760 [ 376.427091] ? smp_reschedule_interrupt+0x109/0x650 [ 376.432111] ? smp_call_function_single_interrupt+0x650/0x650 [ 376.438000] ? interrupt_entry+0xb5/0xc0 [ 376.442063] ? trace_hardirqs_off_caller+0xbb/0x310 [ 376.447089] ? trace_hardirqs_off_caller+0xbb/0x310 [ 376.452128] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 376.456967] ? trace_hardirqs_on_caller+0x310/0x310 [ 376.461987] ? trace_hardirqs_on_caller+0x310/0x310 [ 376.467005] ? task_prio+0x50/0x50 [ 376.470555] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 376.476108] ? check_preemption_disabled+0x48/0x280 [ 376.481142] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 376.485989] apic_timer_interrupt+0xf/0x20 [ 376.490213] [ 376.492450] RIP: 0010:lock_acquire+0x268/0x520 [ 376.497045] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 376.515941] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 376.523639] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 376.530906] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 376.538172] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 376.545433] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 376.552698] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 376.559991] ? lruvec_lru_size+0x450/0x450 [ 376.564230] ? kasan_check_read+0x11/0x20 [ 376.568384] ? lock_release+0xa00/0xa00 [ 376.572367] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 376.577310] down_read_trylock+0xda/0x140 [ 376.581457] ? shrink_slab+0x207/0x8c0 [ 376.585352] ? downgrade_write+0x270/0x270 [ 376.589597] shrink_slab+0x207/0x8c0 [ 376.593310] ? shrink_active_list+0x1f00/0x1f00 [ 376.597987] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 376.603621] ? __lock_acquire+0x62f/0x4c20 [ 376.607878] ? percpu_ref_get_many+0x240/0x240 [ 376.612480] ? print_usage_bug+0xc0/0xc0 [ 376.616553] shrink_node+0x431/0x16b0 [ 376.620357] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 376.625660] ? shrink_node_memcg+0x18f0/0x18f0 [ 376.630265] ? kvm_clock_read+0x18/0x30 [ 376.634241] ? ktime_get+0x2c1/0x400 [ 376.637964] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 376.642479] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 376.648020] ? __cpuset_node_allowed+0x19b/0x660 [ 376.652772] ? mark_held_locks+0x130/0x130 [ 376.657011] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 376.662738] ? zap_class+0x640/0x640 [ 376.666469] do_try_to_free_pages+0x3e7/0x1290 [ 376.671047] ? zap_class+0x640/0x640 [ 376.674778] ? shrink_node+0x16b0/0x16b0 [ 376.678841] ? __lock_is_held+0xb5/0x140 [ 376.682941] try_to_free_pages+0x4d0/0xb90 [ 376.687187] ? do_try_to_free_pages+0x1290/0x1290 [ 376.692042] ? lock_acquire+0x1ed/0x520 [ 376.696016] ? set_page_refcounted+0x280/0x280 [ 376.700617] ? lock_release+0xa00/0xa00 [ 376.704633] ? _raw_spin_unlock_irq+0x60/0x80 [ 376.709139] ? psi_memstall_enter+0x240/0x2b0 [ 376.713637] ? psi_memstall_tick+0x230/0x230 [ 376.718056] __alloc_pages_slowpath+0xa48/0x2de0 [ 376.722841] ? warn_alloc+0x120/0x120 [ 376.726639] ? mark_held_locks+0x130/0x130 [ 376.730884] ? find_get_entry+0xaae/0x1120 [ 376.735146] ? filemap_map_pages+0x1a20/0x1a20 [ 376.739735] ? zap_class+0x640/0x640 [ 376.743465] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 376.749010] ? check_preemption_disabled+0x48/0x280 [ 376.754025] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 376.759562] ? should_fail+0x22d/0xd01 [ 376.763450] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 376.768552] ? zap_class+0x640/0x640 [ 376.772288] ? __lock_is_held+0xb5/0x140 [ 376.776354] ? mark_held_locks+0x130/0x130 [ 376.780588] ? lock_release+0xa00/0xa00 [ 376.784560] ? perf_trace_sched_process_exec+0x860/0x860 [ 376.790007] ? xa_load+0x2ba/0x460 [ 376.793546] ? lock_downgrade+0x900/0x900 [ 376.797698] ? __might_sleep+0x95/0x190 [ 376.801733] __alloc_pages_nodemask+0xad8/0xea0 [ 376.806412] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 376.811430] ? __page_cache_alloc+0x191/0x5c0 [ 376.815922] ? xa_load+0x2e1/0x460 [ 376.819493] ? xa_clear_mark+0x40/0x40 [ 376.823381] ? zap_class+0x640/0x640 [ 376.827102] ? zap_class+0x640/0x640 [ 376.830820] ? zap_class+0x640/0x640 [ 376.834533] ? __do_page_cache_readahead+0x663/0x810 [ 376.839640] ? find_held_lock+0x36/0x1c0 [ 376.843729] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 376.849273] alloc_pages_current+0x173/0x350 [ 376.853684] __page_cache_alloc+0x38c/0x5c0 [ 376.858002] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 376.862924] ? kasan_check_read+0x11/0x20 [ 376.867067] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 376.872366] ? generic_perform_write+0x6a0/0x6a0 [ 376.877130] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 376.882665] ? check_preemption_disabled+0x48/0x280 [ 376.887701] filemap_fault+0x1595/0x25f0 [ 376.891770] ? __lock_page_or_retry+0xa00/0xa00 [ 376.896439] ? mark_held_locks+0x130/0x130 [ 376.900678] ? filemap_map_pages+0xd6b/0x1a20 [ 376.905174] ? lock_downgrade+0x900/0x900 [ 376.909324] ? check_preemption_disabled+0x48/0x280 [ 376.914344] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 376.919275] ? kasan_check_read+0x11/0x20 [ 376.923441] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 376.928720] ? rcu_softirq_qs+0x20/0x20 [ 376.932703] ? filemap_map_pages+0xd92/0x1a20 [ 376.937230] ? find_get_entries_tag+0x1400/0x1400 [ 376.942073] ? debug_object_destroy+0x2b0/0x2b0 [ 376.946755] ? lock_pi_update_atomic+0x150/0x150 [ 376.951637] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 376.957186] ? lock_acquire+0x1ed/0x520 [ 376.961162] ? ext4_filemap_fault+0x7a/0xad [ 376.965494] ? lock_release+0xa00/0xa00 [ 376.969480] ? perf_trace_sched_process_exec+0x860/0x860 [ 376.974927] ? print_usage_bug+0xc0/0xc0 [ 376.979003] ? print_usage_bug+0xc0/0xc0 [ 376.983073] ? down_read+0x8d/0x120 [ 376.986699] ? ext4_filemap_fault+0x7a/0xad [ 376.991071] ? __down_interruptible+0x700/0x700 [ 376.995770] ext4_filemap_fault+0x82/0xad [ 376.999923] __do_fault+0x100/0x6b0 [ 377.003546] ? find_held_lock+0x36/0x1c0 [ 377.007605] ? pmd_devmap_trans_unstable+0x220/0x220 [ 377.012705] ? mark_held_locks+0x130/0x130 [ 377.016934] ? mark_held_locks+0x130/0x130 [ 377.021185] ? kasan_check_read+0x11/0x20 [ 377.025332] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 377.030866] __handle_mm_fault+0x3ea0/0x5be0 [ 377.035275] ? perf_trace_lock+0x7a0/0x7a0 [ 377.039518] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 377.044372] ? __switch_to_asm+0x34/0x70 [ 377.048445] ? __switch_to_asm+0x34/0x70 [ 377.052536] ? zap_class+0x640/0x640 [ 377.056247] ? zap_class+0x640/0x640 [ 377.059953] ? __x64_sys_futex+0x53e/0x6a0 [ 377.064223] ? find_held_lock+0x36/0x1c0 [ 377.068291] ? handle_mm_fault+0x42a/0xc70 [ 377.072520] ? lock_downgrade+0x900/0x900 [ 377.076663] ? check_preemption_disabled+0x48/0x280 [ 377.082143] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 377.087072] ? kasan_check_read+0x11/0x20 [ 377.091235] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 377.096561] ? rcu_softirq_qs+0x20/0x20 [ 377.100536] ? trace_hardirqs_off_caller+0x310/0x310 [ 377.105658] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 377.111198] ? sync_mm_rss+0x9a/0x1c0 [ 377.115006] handle_mm_fault+0x54f/0xc70 [ 377.119069] ? __handle_mm_fault+0x5be0/0x5be0 [ 377.123657] ? find_vma+0x34/0x190 [ 377.127208] __do_page_fault+0x5e8/0xe60 [ 377.131271] ? trace_hardirqs_off+0xb8/0x310 [ 377.135689] do_page_fault+0xf2/0x7e0 [ 377.139492] ? vmalloc_sync_all+0x30/0x30 [ 377.143654] ? error_entry+0x70/0xd0 [ 377.147370] ? trace_hardirqs_off_caller+0xbb/0x310 [ 377.152391] ? trace_hardirqs_on_caller+0xc0/0x310 [ 377.157338] ? syscall_return_slowpath+0x5e0/0x5e0 [ 377.162284] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 377.167135] ? trace_hardirqs_on_caller+0x310/0x310 [ 377.172158] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 377.177618] ? prepare_exit_to_usermode+0x291/0x3b0 [ 377.182647] ? page_fault+0x8/0x30 [ 377.186197] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 377.191047] ? page_fault+0x8/0x30 [ 377.194590] page_fault+0x1e/0x30 [ 377.198040] RIP: 0033:0x45ddf3 [ 377.201244] Code: Bad RIP value. [ 377.204625] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 377.209986] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 377.217250] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 377.224518] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 377.231784] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 377.239051] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 377.246345] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 377.246351] warn_alloc_show_mem: 1 callbacks suppressed [ 377.246358] Mem-Info: [ 377.253636] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 377.259004] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 377.259004] active_file:17 inactive_file:17 isolated_file:0 [ 377.259004] unevictable:0 dirty:4 writeback:0 unstable:0 [ 377.259004] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 377.259004] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 377.259004] free:13550 free_pcp:124 free_cma:0 [ 377.261412] Call Trace: [ 377.270822] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 377.303923] [ 377.306485] 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 [ 377.334253] dump_stack+0x244/0x39d [ 377.336376] lowmem_reserve[]: 0 2818 6321 6321 [ 377.362511] ? dump_stack_print_info.cold.1+0x20/0x20 [ 377.366106] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 377.370695] warn_alloc.cold.116+0xb7/0x1bd [ 377.375848] lowmem_reserve[]: 0 0 3503 3503 [ 377.403164] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 377.407464] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 377.411772] ? lock_downgrade+0x900/0x900 [ 377.416581] lowmem_reserve[]: 0 0 0 0 [ 377.445489] ? trace_hardirqs_off+0xb8/0x310 [ 377.449624] 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 [ 377.453418] ? trace_hardirqs_off+0xb8/0x310 [ 377.457794] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 377.471322] __alloc_pages_slowpath+0x2651/0x2de0 [ 377.475700] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 377.490479] ? warn_alloc+0x120/0x120 [ 377.495278] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 377.509998] ? print_usage_bug+0xc0/0xc0 [ 377.513773] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 377.522643] ? warn_alloc+0x120/0x120 [ 377.526709] 1360 total pagecache pages [ 377.535268] ? warn_alloc+0x120/0x120 [ 377.539049] 0 pages in swap cache [ 377.542954] ? print_usage_bug+0xc0/0xc0 [ 377.546746] Swap cache stats: add 0, delete 0, find 0/0 [ 377.550183] ? kvm_clock_read+0x18/0x30 [ 377.554216] Free swap = 0kB [ 377.559564] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 377.563515] Total swap = 0kB [ 377.566527] ? print_usage_bug+0xc0/0xc0 [ 377.571522] 1965979 pages RAM [ 377.574577] ? __lock_acquire+0x62f/0x4c20 [ 377.578616] 0 pages HighMem/MovableOnly [ 377.581728] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 377.585947] 342854 pages reserved [ 377.589914] ? should_fail+0x22d/0xd01 [ 377.595420] 0 pages cma reserved [ 377.598858] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 377.602803] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 377.606079] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 377.611421] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 377.617817] ? __lock_acquire+0x62f/0x4c20 [ 377.622914] syz-fuzzer cpuset=/ mems_allowed=0 [ 377.633137] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 377.647004] ? __lock_acquire+0x62f/0x4c20 [ 377.651234] ? should_fail+0x22d/0xd01 [ 377.655136] ? rcu_irq_exit+0x1a2/0x390 [ 377.659127] ? mark_held_locks+0x130/0x130 [ 377.663369] ? mark_held_locks+0x130/0x130 [ 377.667614] ? mark_held_locks+0xc7/0x130 [ 377.671764] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 377.676796] ? zap_class+0x640/0x640 [ 377.680541] ? print_usage_bug+0xc0/0xc0 [ 377.684620] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 377.690160] ? check_preemption_disabled+0x48/0x280 [ 377.695187] ? __lock_is_held+0xb5/0x140 [ 377.699251] __alloc_pages_nodemask+0xad8/0xea0 [ 377.703928] ? zap_class+0x640/0x640 [ 377.707679] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 377.712750] ? find_held_lock+0x36/0x1c0 [ 377.716820] ? ____cache_alloc_node+0x1c7/0x1e0 [ 377.721493] ? lock_downgrade+0x900/0x900 [ 377.725646] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 377.731203] cache_grow_begin+0xa5/0x8c0 [ 377.735263] ? do_raw_spin_unlock+0xa7/0x330 [ 377.739677] fallback_alloc+0x204/0x2e0 [ 377.743664] ____cache_alloc_node+0x1c7/0x1e0 [ 377.748175] kmem_cache_alloc_node+0xe3/0x730 [ 377.752686] ? ipv6_get_ifaddr+0x42e/0x620 [ 377.756928] __alloc_skb+0x119/0x770 [ 377.760638] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 377.765941] ? netdev_alloc_frag+0x1f0/0x1f0 [ 377.770357] ? lock_downgrade+0x900/0x900 [ 377.774545] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 377.780115] ? refcount_sub_and_test_checked+0x203/0x310 [ 377.785576] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 377.791029] ? addrconf_rs_timer+0x690/0x690 [ 377.795464] ndisc_alloc_skb+0x144/0x340 [ 377.799527] ndisc_send_rs+0x331/0x6e0 [ 377.803430] addrconf_rs_timer+0x314/0x690 [ 377.807684] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 377.811922] call_timer_fn+0x272/0x920 [ 377.815807] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 377.820035] ? process_timeout+0x40/0x40 [ 377.824099] ? __run_timers+0x7da/0xc70 [ 377.828075] ? _raw_spin_unlock_irq+0x27/0x80 [ 377.832570] ? _raw_spin_unlock_irq+0x27/0x80 [ 377.837064] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 377.841313] ? lockdep_hardirqs_on+0x296/0x5b0 [ 377.845924] ? trace_hardirqs_on+0xbd/0x310 [ 377.850261] ? kasan_check_read+0x11/0x20 [ 377.854408] ? __run_timers+0x7da/0xc70 [ 377.858407] ? trace_hardirqs_off_caller+0x310/0x310 [ 377.863528] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 377.867765] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 377.871993] __run_timers+0x7e5/0xc70 [ 377.875801] ? timer_fixup_init+0x70/0x70 [ 377.879946] ? kasan_check_read+0x11/0x20 [ 377.884111] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 377.889418] ? rcu_softirq_qs+0x20/0x20 [ 377.893443] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 377.898981] ? check_preemption_disabled+0x48/0x280 [ 377.904005] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 377.908767] ? retint_kernel+0x2d/0x2d [ 377.912687] ? trace_hardirqs_on_caller+0xc0/0x310 [ 377.917615] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 377.922371] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 377.927836] ? zap_class+0x640/0x640 [ 377.931568] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 377.937105] ? check_preemption_disabled+0x48/0x280 [ 377.942187] ? __lock_is_held+0xb5/0x140 [ 377.946281] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 377.951831] ? check_preemption_disabled+0x48/0x280 [ 377.956849] run_timer_softirq+0x52/0xb0 [ 377.960917] ? rcu_read_lock_sched_held+0x14f/0x180 [ 377.965934] __do_softirq+0x308/0xb7e [ 377.969735] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 377.974234] ? lock_downgrade+0x900/0x900 [ 377.978384] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 377.983507] ? pvclock_read_flags+0x160/0x160 [ 377.988002] ? lapic_next_event+0x5a/0x90 [ 377.992190] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 377.997754] ? kvm_clock_read+0x18/0x30 [ 378.001731] ? kvm_sched_clock_read+0x9/0x20 [ 378.006146] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 378.011683] ? check_preemption_disabled+0x48/0x280 [ 378.016713] irq_exit+0x17f/0x1c0 [ 378.020164] smp_apic_timer_interrupt+0x1cb/0x760 [ 378.025002] ? smp_reschedule_interrupt+0x109/0x650 [ 378.030014] ? smp_call_function_single_interrupt+0x650/0x650 [ 378.035907] ? interrupt_entry+0xb5/0xc0 [ 378.039968] ? trace_hardirqs_off_caller+0xbb/0x310 [ 378.044978] ? trace_hardirqs_off_caller+0xbb/0x310 [ 378.049992] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 378.054847] ? trace_hardirqs_on_caller+0x310/0x310 [ 378.059871] ? trace_hardirqs_on_caller+0x310/0x310 [ 378.064906] ? task_prio+0x50/0x50 [ 378.068455] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 378.074015] ? check_preemption_disabled+0x48/0x280 [ 378.079030] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 378.083889] apic_timer_interrupt+0xf/0x20 [ 378.088238] [ 378.090501] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 378.095457] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 378.114368] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 378.122107] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 378.129396] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 378.136687] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 378.143952] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 378.151216] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 378.158515] skb_clone+0x1bb/0x500 [ 378.162057] ? skb_split+0x11e0/0x11e0 [ 378.165944] ? preempt_notifier_register+0x200/0x200 [ 378.171042] ? __switch_to_asm+0x34/0x70 [ 378.175097] ? __switch_to_asm+0x34/0x70 [ 378.179162] ? __switch_to_asm+0x40/0x70 [ 378.183217] ? __switch_to_asm+0x34/0x70 [ 378.187276] ? __switch_to_asm+0x40/0x70 [ 378.191333] ? __switch_to_asm+0x40/0x70 [ 378.195394] ? __switch_to_asm+0x34/0x70 [ 378.199453] ? __switch_to_asm+0x34/0x70 [ 378.203509] ? __switch_to_asm+0x40/0x70 [ 378.207583] ? __switch_to_asm+0x34/0x70 [ 378.211665] bpf_clone_redirect+0xb9/0x490 [ 378.215911] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 378.220928] ? __sched_text_start+0x8/0x8 [ 378.225087] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 378.229855] ? find_held_lock+0x36/0x1c0 [ 378.233933] ? lock_acquire+0x1ed/0x520 [ 378.237922] ? bpf_test_run+0x3ee/0x7a0 [ 378.241892] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 378.247427] ? check_preemption_disabled+0x48/0x280 [ 378.252471] ? kasan_check_read+0x11/0x20 [ 378.256649] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 378.261917] ? rcu_softirq_qs+0x20/0x20 [ 378.265890] ? preempt_schedule+0x4d/0x60 [ 378.270031] ? ___preempt_schedule+0x16/0x18 [ 378.274451] ? bpf_test_run+0x271/0x7a0 [ 378.278476] ? netlink_diag_dump+0x2a0/0x2a0 [ 378.282883] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 378.288430] ? bpf_test_init.isra.10+0x70/0x100 [ 378.293095] ? bpf_prog_test_run_skb+0x762/0xd60 [ 378.297855] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 378.302727] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 378.308255] ? fput+0x130/0x1a0 [ 378.311533] ? __bpf_prog_get+0x9b/0x290 [ 378.315648] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 378.320485] ? bpf_prog_test_run+0x130/0x1a0 [ 378.324918] ? __x64_sys_bpf+0x3d8/0x520 [ 378.329007] ? bpf_prog_get+0x20/0x20 [ 378.332847] ? do_syscall_64+0x1b9/0x820 [ 378.336918] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 378.342294] ? syscall_return_slowpath+0x5e0/0x5e0 [ 378.347262] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 378.352101] ? trace_hardirqs_on_caller+0x310/0x310 [ 378.357127] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 378.362152] ? prepare_exit_to_usermode+0x291/0x3b0 [ 378.367197] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 378.372080] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 378.377479] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 378.377572] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 378.384409] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 378.384414] Call Trace: [ 378.384419] [ 378.384434] dump_stack+0x244/0x39d [ 378.384454] ? dump_stack_print_info.cold.1+0x20/0x20 [ 378.391565] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 378.400276] warn_alloc.cold.116+0xb7/0x1bd [ 378.402858] syz-executor4 cpuset=syz4 mems_allowed=0 [ 378.405018] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 378.438514] ? lock_downgrade+0x900/0x900 [ 378.442670] ? trace_hardirqs_off+0xb8/0x310 [ 378.447099] ? trace_hardirqs_off+0xb8/0x310 [ 378.451535] __alloc_pages_slowpath+0x2651/0x2de0 [ 378.456410] ? warn_alloc+0x120/0x120 [ 378.460213] ? print_usage_bug+0xc0/0xc0 [ 378.464276] ? warn_alloc+0x120/0x120 [ 378.468087] ? warn_alloc+0x120/0x120 [ 378.471903] ? print_usage_bug+0xc0/0xc0 [ 378.476073] ? kvm_clock_read+0x18/0x30 [ 378.480050] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 378.485069] ? print_usage_bug+0xc0/0xc0 [ 378.489138] ? __lock_acquire+0x62f/0x4c20 [ 378.493409] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 378.498978] ? should_fail+0x22d/0xd01 [ 378.502862] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 378.508151] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 378.513261] ? __lock_acquire+0x62f/0x4c20 [ 378.517527] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 378.522645] ? __lock_acquire+0x62f/0x4c20 [ 378.526871] ? should_fail+0x22d/0xd01 [ 378.530772] ? rcu_irq_exit+0x1a2/0x390 [ 378.534751] ? mark_held_locks+0x130/0x130 [ 378.539003] ? mark_held_locks+0x130/0x130 [ 378.543272] ? mark_held_locks+0xc7/0x130 [ 378.547414] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 378.552428] ? zap_class+0x640/0x640 [ 378.556139] ? print_usage_bug+0xc0/0xc0 [ 378.560203] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 378.565734] ? check_preemption_disabled+0x48/0x280 [ 378.570755] ? __lock_is_held+0xb5/0x140 [ 378.574817] __alloc_pages_nodemask+0xad8/0xea0 [ 378.579505] ? zap_class+0x640/0x640 [ 378.583218] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 378.588244] ? find_held_lock+0x36/0x1c0 [ 378.592306] ? ____cache_alloc_node+0x1c7/0x1e0 [ 378.596970] ? lock_downgrade+0x900/0x900 [ 378.601144] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 378.606698] cache_grow_begin+0xa5/0x8c0 [ 378.610756] ? do_raw_spin_unlock+0xa7/0x330 [ 378.615173] fallback_alloc+0x204/0x2e0 [ 378.619161] ____cache_alloc_node+0x1c7/0x1e0 [ 378.623668] kmem_cache_alloc_node+0xe3/0x730 [ 378.628164] ? ipv6_get_ifaddr+0x42e/0x620 [ 378.632401] __alloc_skb+0x119/0x770 [ 378.636107] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 378.641389] ? netdev_alloc_frag+0x1f0/0x1f0 [ 378.645798] ? lock_downgrade+0x900/0x900 [ 378.649953] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 378.655500] ? refcount_sub_and_test_checked+0x203/0x310 [ 378.660967] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 378.666448] ? addrconf_rs_timer+0x690/0x690 [ 378.670881] ndisc_alloc_skb+0x144/0x340 [ 378.674951] ndisc_send_rs+0x331/0x6e0 [ 378.678855] addrconf_rs_timer+0x314/0x690 [ 378.683096] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 378.687347] call_timer_fn+0x272/0x920 [ 378.691247] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 378.695481] ? process_timeout+0x40/0x40 [ 378.699551] ? mark_held_locks+0xc7/0x130 [ 378.703715] ? _raw_spin_unlock_irq+0x27/0x80 [ 378.708224] ? _raw_spin_unlock_irq+0x27/0x80 [ 378.712714] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 378.716945] ? lockdep_hardirqs_on+0x296/0x5b0 [ 378.721528] ? trace_hardirqs_on+0xbd/0x310 [ 378.725848] ? kasan_check_read+0x11/0x20 [ 378.730011] ? __run_timers+0x7da/0xc70 [ 378.733995] ? trace_hardirqs_off_caller+0x310/0x310 [ 378.739094] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 378.743365] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 378.747594] __run_timers+0x7e5/0xc70 [ 378.751403] ? timer_fixup_init+0x70/0x70 [ 378.755550] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 378.760565] ? zap_class+0x640/0x640 [ 378.764282] ? print_usage_bug+0xc0/0xc0 [ 378.768391] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 378.773583] ? find_held_lock+0x36/0x1c0 [ 378.777679] ? zap_class+0x640/0x640 [ 378.781422] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 378.786967] ? check_preemption_disabled+0x48/0x280 [ 378.791987] ? __lock_is_held+0xb5/0x140 [ 378.796048] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 378.801601] ? check_preemption_disabled+0x48/0x280 [ 378.806626] run_timer_softirq+0x52/0xb0 [ 378.810702] ? rcu_read_lock_sched_held+0x14f/0x180 [ 378.815717] __do_softirq+0x308/0xb7e [ 378.819519] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 378.824022] ? lock_downgrade+0x900/0x900 [ 378.828171] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 378.833280] ? pvclock_read_flags+0x160/0x160 [ 378.837773] ? lapic_next_event+0x5a/0x90 [ 378.841940] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 378.847529] ? kvm_clock_read+0x18/0x30 [ 378.851533] ? kvm_sched_clock_read+0x9/0x20 [ 378.855941] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 378.861475] ? check_preemption_disabled+0x48/0x280 [ 378.866515] irq_exit+0x17f/0x1c0 [ 378.869968] smp_apic_timer_interrupt+0x1cb/0x760 [ 378.874814] ? smp_reschedule_interrupt+0x109/0x650 [ 378.879866] ? smp_call_function_single_interrupt+0x650/0x650 [ 378.885776] ? interrupt_entry+0xb5/0xc0 [ 378.889847] ? trace_hardirqs_off_caller+0xbb/0x310 [ 378.894862] ? trace_hardirqs_off_caller+0xbb/0x310 [ 378.899877] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 378.904721] ? trace_hardirqs_on_caller+0x310/0x310 [ 378.909737] ? trace_hardirqs_on_caller+0x310/0x310 [ 378.914751] ? task_prio+0x50/0x50 [ 378.918293] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 378.923830] ? check_preemption_disabled+0x48/0x280 [ 378.928854] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 378.933706] apic_timer_interrupt+0xf/0x20 [ 378.937934] [ 378.940174] RIP: 0010:lock_acquire+0x268/0x520 [ 378.944756] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 378.963789] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 378.971492] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 378.978760] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 378.986028] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 378.993294] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 379.000564] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 379.007861] ? lruvec_lru_size+0x450/0x450 [ 379.012100] ? kasan_check_read+0x11/0x20 [ 379.016263] ? lock_release+0xa00/0xa00 [ 379.020244] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 379.025182] down_read_trylock+0xda/0x140 [ 379.029345] ? shrink_slab+0x207/0x8c0 [ 379.033233] ? downgrade_write+0x270/0x270 [ 379.037478] shrink_slab+0x207/0x8c0 [ 379.041206] ? shrink_active_list+0x1f00/0x1f00 [ 379.045887] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 379.051520] ? __lock_acquire+0x62f/0x4c20 [ 379.055758] ? percpu_ref_get_many+0x240/0x240 [ 379.060364] ? print_usage_bug+0xc0/0xc0 [ 379.064437] shrink_node+0x431/0x16b0 [ 379.068242] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 379.073581] ? shrink_node_memcg+0x18f0/0x18f0 [ 379.078168] ? kvm_clock_read+0x18/0x30 [ 379.082681] ? ktime_get+0x2c1/0x400 [ 379.086402] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 379.090907] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 379.096445] ? __cpuset_node_allowed+0x19b/0x660 [ 379.101214] ? mark_held_locks+0x130/0x130 [ 379.105449] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 379.111183] ? zap_class+0x640/0x640 [ 379.114947] do_try_to_free_pages+0x3e7/0x1290 [ 379.119527] ? zap_class+0x640/0x640 [ 379.123260] ? shrink_node+0x16b0/0x16b0 [ 379.127326] ? __lock_is_held+0xb5/0x140 [ 379.131400] try_to_free_pages+0x4d0/0xb90 [ 379.135652] ? do_try_to_free_pages+0x1290/0x1290 [ 379.140506] ? lock_acquire+0x1ed/0x520 [ 379.144487] ? set_page_refcounted+0x280/0x280 [ 379.149076] ? lock_release+0xa00/0xa00 [ 379.153051] ? _raw_spin_unlock_irq+0x60/0x80 [ 379.157545] ? psi_memstall_enter+0x240/0x2b0 [ 379.162052] ? psi_memstall_tick+0x230/0x230 [ 379.166470] __alloc_pages_slowpath+0xa48/0x2de0 [ 379.171269] ? warn_alloc+0x120/0x120 [ 379.175068] ? mark_held_locks+0x130/0x130 [ 379.179314] ? find_get_entry+0xaae/0x1120 [ 379.183562] ? filemap_map_pages+0x1a20/0x1a20 [ 379.188163] ? zap_class+0x640/0x640 [ 379.191886] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 379.197432] ? check_preemption_disabled+0x48/0x280 [ 379.202450] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 379.207988] ? should_fail+0x22d/0xd01 [ 379.211880] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 379.216991] ? zap_class+0x640/0x640 [ 379.220726] ? __lock_is_held+0xb5/0x140 [ 379.224787] ? mark_held_locks+0x130/0x130 [ 379.229018] ? lock_release+0xa00/0xa00 [ 379.232984] ? perf_trace_sched_process_exec+0x860/0x860 [ 379.238425] ? xa_load+0x2ba/0x460 [ 379.241974] ? lock_downgrade+0x900/0x900 [ 379.246145] ? __might_sleep+0x95/0x190 [ 379.250129] __alloc_pages_nodemask+0xad8/0xea0 [ 379.254800] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 379.259814] ? __page_cache_alloc+0x191/0x5c0 [ 379.264322] ? xa_load+0x2e1/0x460 [ 379.267877] ? xa_clear_mark+0x40/0x40 [ 379.271807] ? zap_class+0x640/0x640 [ 379.275571] ? zap_class+0x640/0x640 [ 379.279304] ? zap_class+0x640/0x640 [ 379.283014] ? __do_page_cache_readahead+0x663/0x810 [ 379.288141] ? find_held_lock+0x36/0x1c0 [ 379.292207] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 379.297750] alloc_pages_current+0x173/0x350 [ 379.302173] __page_cache_alloc+0x38c/0x5c0 [ 379.306488] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 379.311412] ? kasan_check_read+0x11/0x20 [ 379.315557] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 379.320831] ? generic_perform_write+0x6a0/0x6a0 [ 379.325580] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 379.331147] ? check_preemption_disabled+0x48/0x280 [ 379.336161] filemap_fault+0x1595/0x25f0 [ 379.340226] ? __lock_page_or_retry+0xa00/0xa00 [ 379.344897] ? mark_held_locks+0x130/0x130 [ 379.349149] ? filemap_map_pages+0xd6b/0x1a20 [ 379.353659] ? lock_downgrade+0x900/0x900 [ 379.357805] ? check_preemption_disabled+0x48/0x280 [ 379.362822] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 379.367799] ? kasan_check_read+0x11/0x20 [ 379.371937] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 379.377209] ? rcu_softirq_qs+0x20/0x20 [ 379.381212] ? filemap_map_pages+0xd92/0x1a20 [ 379.385719] ? find_get_entries_tag+0x1400/0x1400 [ 379.390570] ? debug_object_destroy+0x2b0/0x2b0 [ 379.395283] ? lock_pi_update_atomic+0x150/0x150 [ 379.400045] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 379.405627] ? lock_acquire+0x1ed/0x520 [ 379.409663] ? ext4_filemap_fault+0x7a/0xad [ 379.413999] ? lock_release+0xa00/0xa00 [ 379.417967] ? perf_trace_sched_process_exec+0x860/0x860 [ 379.423413] ? print_usage_bug+0xc0/0xc0 [ 379.427473] ? print_usage_bug+0xc0/0xc0 [ 379.431537] ? down_read+0x8d/0x120 [ 379.435160] ? ext4_filemap_fault+0x7a/0xad [ 379.439481] ? __down_interruptible+0x700/0x700 [ 379.444198] ext4_filemap_fault+0x82/0xad [ 379.448349] __do_fault+0x100/0x6b0 [ 379.451970] ? find_held_lock+0x36/0x1c0 [ 379.456042] ? pmd_devmap_trans_unstable+0x220/0x220 [ 379.461188] ? mark_held_locks+0x130/0x130 [ 379.465444] ? mark_held_locks+0x130/0x130 [ 379.469702] ? kasan_check_read+0x11/0x20 [ 379.473846] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 379.479384] __handle_mm_fault+0x3ea0/0x5be0 [ 379.483794] ? perf_trace_lock+0x7a0/0x7a0 [ 379.488039] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 379.492885] ? __switch_to_asm+0x34/0x70 [ 379.496948] ? __switch_to_asm+0x34/0x70 [ 379.501033] ? zap_class+0x640/0x640 [ 379.504742] ? zap_class+0x640/0x640 [ 379.508465] ? __x64_sys_futex+0x53e/0x6a0 [ 379.512700] ? find_held_lock+0x36/0x1c0 [ 379.516789] ? handle_mm_fault+0x42a/0xc70 [ 379.521025] ? lock_downgrade+0x900/0x900 [ 379.525173] ? check_preemption_disabled+0x48/0x280 [ 379.530194] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 379.535132] ? kasan_check_read+0x11/0x20 [ 379.539285] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 379.544565] ? rcu_softirq_qs+0x20/0x20 [ 379.548540] ? trace_hardirqs_off_caller+0x310/0x310 [ 379.553647] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 379.559185] ? sync_mm_rss+0x9a/0x1c0 [ 379.562993] handle_mm_fault+0x54f/0xc70 [ 379.567056] ? __handle_mm_fault+0x5be0/0x5be0 [ 379.571643] ? find_vma+0x34/0x190 [ 379.575193] __do_page_fault+0x5e8/0xe60 [ 379.579253] ? trace_hardirqs_off+0xb8/0x310 [ 379.583694] do_page_fault+0xf2/0x7e0 [ 379.587497] ? vmalloc_sync_all+0x30/0x30 [ 379.591647] ? error_entry+0x70/0xd0 [ 379.595361] ? trace_hardirqs_off_caller+0xbb/0x310 [ 379.600373] ? trace_hardirqs_on_caller+0xc0/0x310 [ 379.605336] ? syscall_return_slowpath+0x5e0/0x5e0 [ 379.610269] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 379.615134] ? trace_hardirqs_on_caller+0x310/0x310 [ 379.620200] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 379.625658] ? prepare_exit_to_usermode+0x291/0x3b0 [ 379.630691] ? page_fault+0x8/0x30 [ 379.634259] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 379.639103] ? page_fault+0x8/0x30 [ 379.642652] page_fault+0x1e/0x30 [ 379.646103] RIP: 0033:0x45ddf3 [ 379.649320] Code: Bad RIP value. [ 379.652679] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 379.658048] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 379.665315] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 379.672582] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 379.679847] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 379.687115] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 379.694417] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 379.694422] warn_alloc_show_mem: 1 callbacks suppressed [ 379.694429] Mem-Info: [ 379.701707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 379.707073] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 379.707073] active_file:17 inactive_file:17 isolated_file:0 [ 379.707073] unevictable:0 dirty:4 writeback:0 unstable:0 [ 379.707073] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 379.707073] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 379.707073] free:13550 free_pcp:124 free_cma:0 [ 379.709444] Call Trace: [ 379.718847] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 379.751860] [ 379.754428] 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 [ 379.782177] dump_stack+0x244/0x39d [ 379.784299] lowmem_reserve[]: 0 2818 6321 6321 [ 379.810405] ? dump_stack_print_info.cold.1+0x20/0x20 [ 379.813995] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 379.818575] warn_alloc.cold.116+0xb7/0x1bd [ 379.823747] lowmem_reserve[]: 0 0 3503 3503 [ 379.851065] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 379.855363] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 379.859677] ? lock_downgrade+0x900/0x900 [ 379.864493] lowmem_reserve[]: 0 0 0 0 [ 379.893386] ? trace_hardirqs_off+0xb8/0x310 [ 379.897515] 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 [ 379.901311] ? trace_hardirqs_off+0xb8/0x310 [ 379.905696] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 379.919223] __alloc_pages_slowpath+0x2651/0x2de0 [ 379.923603] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 379.938359] ? warn_alloc+0x120/0x120 [ 379.943162] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 379.957886] ? warn_alloc+0x120/0x120 [ 379.961679] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 379.970503] ? warn_alloc+0x120/0x120 [ 379.974278] 1360 total pagecache pages [ 379.982846] ? __bpf_trace_xdp_cpumap_enqueue+0x40/0x40 [ 379.986631] 0 pages in swap cache [ 379.990521] ? print_usage_bug+0xc0/0xc0 [ 379.995863] Swap cache stats: add 0, delete 0, find 0/0 [ 379.999305] ? is_bpf_text_address+0xac/0x170 [ 380.003340] Free swap = 0kB [ 380.008691] ? print_usage_bug+0xc0/0xc0 [ 380.013164] Total swap = 0kB [ 380.016173] ? kasan_check_read+0x11/0x20 [ 380.020201] 1965979 pages RAM [ 380.023211] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 380.027331] 0 pages HighMem/MovableOnly [ 380.030427] ? should_fail+0x22d/0xd01 [ 380.035933] 342854 pages reserved [ 380.039908] ? rcu_softirq_qs+0x20/0x20 [ 380.043794] 0 pages cma reserved [ 380.047252] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 380.051284] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 380.054550] ? __lock_acquire+0x62f/0x4c20 [ 380.059707] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 380.066132] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 380.070342] syz-fuzzer cpuset=/ mems_allowed=0 [ 380.080555] ? __lock_acquire+0x62f/0x4c20 [ 380.094423] ? should_fail+0x22d/0xd01 [ 380.098320] ? mark_held_locks+0x130/0x130 [ 380.102557] ? mark_held_locks+0x130/0x130 [ 380.106815] ? try_to_wake_up+0x11c/0x1490 [ 380.111048] ? lock_downgrade+0x900/0x900 [ 380.115212] ? save_stack_trace+0x1a/0x20 [ 380.119363] ? zap_class+0x640/0x640 [ 380.123080] ? print_usage_bug+0xc0/0xc0 [ 380.127142] ? trace_hardirqs_off+0xb8/0x310 [ 380.131561] ? kasan_check_read+0x11/0x20 [ 380.135707] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 380.141256] ? check_preemption_disabled+0x48/0x280 [ 380.146275] ? __lock_is_held+0xb5/0x140 [ 380.150337] __alloc_pages_nodemask+0xad8/0xea0 [ 380.155001] ? zap_class+0x640/0x640 [ 380.158730] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 380.163751] ? find_held_lock+0x36/0x1c0 [ 380.167832] ? ____cache_alloc_node+0x1c7/0x1e0 [ 380.172500] ? lock_downgrade+0x900/0x900 [ 380.176652] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 380.182193] cache_grow_begin+0xa5/0x8c0 [ 380.186265] ? do_raw_spin_unlock+0xa7/0x330 [ 380.190724] fallback_alloc+0x204/0x2e0 [ 380.194727] ____cache_alloc_node+0x1c7/0x1e0 [ 380.199244] kmem_cache_alloc_node+0xe3/0x730 [ 380.203739] ? ipv6_get_ifaddr+0x42e/0x620 [ 380.208012] __alloc_skb+0x119/0x770 [ 380.211752] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 380.217059] ? netdev_alloc_frag+0x1f0/0x1f0 [ 380.221465] ? lock_downgrade+0x900/0x900 [ 380.225612] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 380.231149] ? refcount_sub_and_test_checked+0x203/0x310 [ 380.236598] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 380.242047] ? addrconf_rs_timer+0x690/0x690 [ 380.246464] ndisc_alloc_skb+0x144/0x340 [ 380.250530] ndisc_send_rs+0x331/0x6e0 [ 380.254425] addrconf_rs_timer+0x314/0x690 [ 380.258696] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 380.262984] call_timer_fn+0x272/0x920 [ 380.266870] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 380.271106] ? process_timeout+0x40/0x40 [ 380.275210] ? __run_timers+0x7da/0xc70 [ 380.279214] ? _raw_spin_unlock_irq+0x27/0x80 [ 380.283722] ? _raw_spin_unlock_irq+0x27/0x80 [ 380.288210] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 380.292446] ? lockdep_hardirqs_on+0x296/0x5b0 [ 380.297027] ? trace_hardirqs_on+0xbd/0x310 [ 380.301346] ? kasan_check_read+0x11/0x20 [ 380.305489] ? __run_timers+0x7da/0xc70 [ 380.309465] ? trace_hardirqs_off_caller+0x310/0x310 [ 380.314574] ? __queue_work+0x1440/0x1440 [ 380.318726] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 380.322963] __run_timers+0x7e5/0xc70 [ 380.326773] ? timer_fixup_init+0x70/0x70 [ 380.330947] ? kasan_check_read+0x11/0x20 [ 380.335093] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 380.340374] ? rcu_softirq_qs+0x20/0x20 [ 380.344352] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 380.349916] ? check_preemption_disabled+0x48/0x280 [ 380.354939] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 380.359694] ? retint_kernel+0x2d/0x2d [ 380.363583] ? trace_hardirqs_on_caller+0xc0/0x310 [ 380.368532] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 380.373295] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 380.378746] ? zap_class+0x640/0x640 [ 380.382467] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 380.388008] ? check_preemption_disabled+0x48/0x280 [ 380.393030] ? __lock_is_held+0xb5/0x140 [ 380.397091] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 380.402639] ? check_preemption_disabled+0x48/0x280 [ 380.407668] run_timer_softirq+0x52/0xb0 [ 380.411729] ? rcu_read_lock_sched_held+0x14f/0x180 [ 380.416752] __do_softirq+0x308/0xb7e [ 380.420562] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 380.425068] ? lock_downgrade+0x900/0x900 [ 380.429222] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 380.434339] ? pvclock_read_flags+0x160/0x160 [ 380.438838] ? lapic_next_event+0x5a/0x90 [ 380.443003] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 380.448545] ? kvm_clock_read+0x18/0x30 [ 380.452537] ? kvm_sched_clock_read+0x9/0x20 [ 380.456952] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 380.462488] ? check_preemption_disabled+0x48/0x280 [ 380.467528] irq_exit+0x17f/0x1c0 [ 380.470999] smp_apic_timer_interrupt+0x1cb/0x760 [ 380.475840] ? smp_reschedule_interrupt+0x109/0x650 [ 380.480859] ? smp_call_function_single_interrupt+0x650/0x650 [ 380.486743] ? interrupt_entry+0xb5/0xc0 [ 380.490808] ? trace_hardirqs_off_caller+0xbb/0x310 [ 380.495824] ? trace_hardirqs_off_caller+0xbb/0x310 [ 380.500860] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 380.505722] ? trace_hardirqs_on_caller+0x310/0x310 [ 380.510769] ? trace_hardirqs_on_caller+0x310/0x310 [ 380.515789] ? task_prio+0x50/0x50 [ 380.519335] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 380.524887] ? check_preemption_disabled+0x48/0x280 [ 380.529922] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 380.534792] apic_timer_interrupt+0xf/0x20 [ 380.539019] [ 380.541259] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 380.546189] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 380.565105] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 380.572866] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 380.580142] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 380.587409] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 380.594706] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 380.601973] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 380.609278] skb_clone+0x1bb/0x500 [ 380.612819] ? skb_split+0x11e0/0x11e0 [ 380.616708] ? preempt_notifier_register+0x200/0x200 [ 380.621810] ? __switch_to_asm+0x34/0x70 [ 380.625880] ? __switch_to_asm+0x34/0x70 [ 380.629955] ? __switch_to_asm+0x40/0x70 [ 380.634025] ? __switch_to_asm+0x34/0x70 [ 380.638102] ? __switch_to_asm+0x40/0x70 [ 380.642172] ? __switch_to_asm+0x40/0x70 [ 380.646233] ? __switch_to_asm+0x34/0x70 [ 380.650295] ? __switch_to_asm+0x34/0x70 [ 380.654356] ? __switch_to_asm+0x40/0x70 [ 380.658418] ? __switch_to_asm+0x34/0x70 [ 380.662488] bpf_clone_redirect+0xb9/0x490 [ 380.666734] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 380.671754] ? __sched_text_start+0x8/0x8 [ 380.675912] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 380.680681] ? find_held_lock+0x36/0x1c0 [ 380.684754] ? lock_acquire+0x1ed/0x520 [ 380.688729] ? bpf_test_run+0x3ee/0x7a0 [ 380.692706] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 380.698278] ? check_preemption_disabled+0x48/0x280 [ 380.703319] ? kasan_check_read+0x11/0x20 [ 380.707469] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 380.712746] ? rcu_softirq_qs+0x20/0x20 [ 380.716725] ? preempt_schedule+0x4d/0x60 [ 380.720874] ? ___preempt_schedule+0x16/0x18 [ 380.725326] ? bpf_test_run+0x271/0x7a0 [ 380.729325] ? netlink_diag_dump+0x2a0/0x2a0 [ 380.733736] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 380.739366] ? bpf_test_init.isra.10+0x70/0x100 [ 380.744061] ? bpf_prog_test_run_skb+0x762/0xd60 [ 380.748826] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 380.753679] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 380.759216] ? fput+0x130/0x1a0 [ 380.762511] ? __bpf_prog_get+0x9b/0x290 [ 380.766589] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 380.771432] ? bpf_prog_test_run+0x130/0x1a0 [ 380.775847] ? __x64_sys_bpf+0x3d8/0x520 [ 380.779906] ? bpf_prog_get+0x20/0x20 [ 380.783744] ? do_syscall_64+0x1b9/0x820 [ 380.787801] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 380.793183] ? syscall_return_slowpath+0x5e0/0x5e0 [ 380.798110] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 380.802973] ? trace_hardirqs_on_caller+0x310/0x310 [ 380.807994] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 380.813023] ? prepare_exit_to_usermode+0x291/0x3b0 [ 380.818043] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 380.822906] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 380.828322] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 380.828410] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 380.835262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 380.835268] Call Trace: [ 380.835274] [ 380.835291] dump_stack+0x244/0x39d [ 380.835312] ? dump_stack_print_info.cold.1+0x20/0x20 [ 380.841890] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 380.851163] warn_alloc.cold.116+0xb7/0x1bd [ 380.853731] syz-executor4 cpuset=syz4 mems_allowed=0 [ 380.855900] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 380.889378] ? lock_downgrade+0x900/0x900 [ 380.893561] ? trace_hardirqs_off+0xb8/0x310 [ 380.897979] ? trace_hardirqs_off+0xb8/0x310 [ 380.902394] __alloc_pages_slowpath+0x2651/0x2de0 [ 380.907267] ? warn_alloc+0x120/0x120 [ 380.911087] ? print_usage_bug+0xc0/0xc0 [ 380.915190] ? warn_alloc+0x120/0x120 [ 380.919011] ? warn_alloc+0x120/0x120 [ 380.922812] ? print_usage_bug+0xc0/0xc0 [ 380.926877] ? print_usage_bug+0xc0/0xc0 [ 380.930948] ? __lock_acquire+0x62f/0x4c20 [ 380.935190] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 380.940728] ? should_fail+0x22d/0xd01 [ 380.944619] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 380.949834] ? __lock_acquire+0x62f/0x4c20 [ 380.954073] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 380.959171] ? __lock_acquire+0x62f/0x4c20 [ 380.963466] ? should_fail+0x22d/0xd01 [ 380.967353] ? find_held_lock+0x36/0x1c0 [ 380.971426] ? mark_held_locks+0x130/0x130 [ 380.975683] ? mark_held_locks+0x130/0x130 [ 380.979917] ? zap_class+0x640/0x640 [ 380.983634] ? zap_class+0x640/0x640 [ 380.987349] ? print_usage_bug+0xc0/0xc0 [ 380.991407] ? do_raw_spin_unlock+0xa7/0x330 [ 380.995833] ? zap_class+0x640/0x640 [ 380.999546] ? print_usage_bug+0xc0/0xc0 [ 381.003608] ? wq_watchdog_touch+0x9c/0xfe [ 381.007852] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 381.013410] ? check_preemption_disabled+0x48/0x280 [ 381.018452] ? __lock_is_held+0xb5/0x140 [ 381.022547] __alloc_pages_nodemask+0xad8/0xea0 [ 381.027225] ? zap_class+0x640/0x640 [ 381.030944] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 381.035966] ? find_held_lock+0x36/0x1c0 [ 381.040032] ? ____cache_alloc_node+0x1c7/0x1e0 [ 381.044713] ? lock_downgrade+0x900/0x900 [ 381.048867] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 381.054410] cache_grow_begin+0xa5/0x8c0 [ 381.058509] ? do_raw_spin_unlock+0xa7/0x330 [ 381.062953] fallback_alloc+0x204/0x2e0 [ 381.066937] ____cache_alloc_node+0x1c7/0x1e0 [ 381.071431] kmem_cache_alloc_node+0xe3/0x730 [ 381.075924] ? ipv6_get_ifaddr+0x42e/0x620 [ 381.080698] __alloc_skb+0x119/0x770 [ 381.084404] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 381.089699] ? netdev_alloc_frag+0x1f0/0x1f0 [ 381.094102] ? lock_downgrade+0x900/0x900 [ 381.098266] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 381.103805] ? refcount_sub_and_test_checked+0x203/0x310 [ 381.109261] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 381.114714] ? addrconf_rs_timer+0x690/0x690 [ 381.119146] ndisc_alloc_skb+0x144/0x340 [ 381.123232] ndisc_send_rs+0x331/0x6e0 [ 381.127150] addrconf_rs_timer+0x314/0x690 [ 381.131393] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 381.135641] call_timer_fn+0x272/0x920 [ 381.139530] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 381.143783] ? process_timeout+0x40/0x40 [ 381.147871] ? mark_held_locks+0xc7/0x130 [ 381.152028] ? _raw_spin_unlock_irq+0x27/0x80 [ 381.156522] ? _raw_spin_unlock_irq+0x27/0x80 [ 381.161017] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 381.165254] ? lockdep_hardirqs_on+0x296/0x5b0 [ 381.169863] ? trace_hardirqs_on+0xbd/0x310 [ 381.174194] ? kasan_check_read+0x11/0x20 [ 381.178343] ? __run_timers+0x7da/0xc70 [ 381.182321] ? trace_hardirqs_off_caller+0x310/0x310 [ 381.187429] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 381.191672] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 381.195909] __run_timers+0x7e5/0xc70 [ 381.199720] ? timer_fixup_init+0x70/0x70 [ 381.203873] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 381.208898] ? zap_class+0x640/0x640 [ 381.212619] ? print_usage_bug+0xc0/0xc0 [ 381.216682] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 381.221881] ? find_held_lock+0x36/0x1c0 [ 381.225952] ? zap_class+0x640/0x640 [ 381.229672] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 381.235210] ? check_preemption_disabled+0x48/0x280 [ 381.240248] ? __lock_is_held+0xb5/0x140 [ 381.244326] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 381.249868] ? check_preemption_disabled+0x48/0x280 [ 381.254910] run_timer_softirq+0x52/0xb0 [ 381.258984] ? rcu_read_lock_sched_held+0x14f/0x180 [ 381.264000] __do_softirq+0x308/0xb7e [ 381.267813] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 381.272305] ? lock_downgrade+0x900/0x900 [ 381.276463] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 381.281576] ? pvclock_read_flags+0x160/0x160 [ 381.286073] ? lapic_next_event+0x5a/0x90 [ 381.290231] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 381.295767] ? kvm_clock_read+0x18/0x30 [ 381.299767] ? kvm_sched_clock_read+0x9/0x20 [ 381.304175] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 381.309708] ? check_preemption_disabled+0x48/0x280 [ 381.314743] irq_exit+0x17f/0x1c0 [ 381.318199] smp_apic_timer_interrupt+0x1cb/0x760 [ 381.323043] ? smp_reschedule_interrupt+0x109/0x650 [ 381.328067] ? smp_call_function_single_interrupt+0x650/0x650 [ 381.333945] ? interrupt_entry+0xb5/0xc0 [ 381.338002] ? trace_hardirqs_off_caller+0xbb/0x310 [ 381.343012] ? trace_hardirqs_off_caller+0xbb/0x310 [ 381.348023] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 381.352877] ? trace_hardirqs_on_caller+0x310/0x310 [ 381.357919] ? trace_hardirqs_on_caller+0x310/0x310 [ 381.362941] ? task_prio+0x50/0x50 [ 381.366478] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 381.372010] ? check_preemption_disabled+0x48/0x280 [ 381.377025] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 381.381900] apic_timer_interrupt+0xf/0x20 [ 381.386127] [ 381.388361] RIP: 0010:lock_acquire+0x268/0x520 [ 381.392938] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 381.411832] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 381.419533] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 381.426826] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 381.434088] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 381.441383] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 381.448673] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 381.455980] ? lruvec_lru_size+0x450/0x450 [ 381.460215] ? kasan_check_read+0x11/0x20 [ 381.464364] ? lock_release+0xa00/0xa00 [ 381.468341] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 381.473279] down_read_trylock+0xda/0x140 [ 381.477425] ? shrink_slab+0x207/0x8c0 [ 381.481325] ? downgrade_write+0x270/0x270 [ 381.485568] shrink_slab+0x207/0x8c0 [ 381.489282] ? shrink_active_list+0x1f00/0x1f00 [ 381.493958] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 381.499581] ? __lock_acquire+0x62f/0x4c20 [ 381.503815] ? percpu_ref_get_many+0x240/0x240 [ 381.508405] ? print_usage_bug+0xc0/0xc0 [ 381.512473] shrink_node+0x431/0x16b0 [ 381.516274] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 381.521578] ? shrink_node_memcg+0x18f0/0x18f0 [ 381.526162] ? kvm_clock_read+0x18/0x30 [ 381.530140] ? ktime_get+0x2c1/0x400 [ 381.533856] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 381.538351] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 381.543888] ? __cpuset_node_allowed+0x19b/0x660 [ 381.548659] ? mark_held_locks+0x130/0x130 [ 381.552900] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 381.558608] ? zap_class+0x640/0x640 [ 381.562331] do_try_to_free_pages+0x3e7/0x1290 [ 381.566916] ? zap_class+0x640/0x640 [ 381.570642] ? shrink_node+0x16b0/0x16b0 [ 381.574715] ? __lock_is_held+0xb5/0x140 [ 381.578782] try_to_free_pages+0x4d0/0xb90 [ 381.583020] ? do_try_to_free_pages+0x1290/0x1290 [ 381.587867] ? lock_acquire+0x1ed/0x520 [ 381.591845] ? set_page_refcounted+0x280/0x280 [ 381.596428] ? lock_release+0xa00/0xa00 [ 381.600394] ? _raw_spin_unlock_irq+0x60/0x80 [ 381.604887] ? psi_memstall_enter+0x240/0x2b0 [ 381.609393] ? psi_memstall_tick+0x230/0x230 [ 381.613806] __alloc_pages_slowpath+0xa48/0x2de0 [ 381.618634] ? warn_alloc+0x120/0x120 [ 381.622432] ? mark_held_locks+0x130/0x130 [ 381.626669] ? find_get_entry+0xaae/0x1120 [ 381.630916] ? filemap_map_pages+0x1a20/0x1a20 [ 381.635499] ? zap_class+0x640/0x640 [ 381.639219] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 381.644771] ? check_preemption_disabled+0x48/0x280 [ 381.649800] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 381.655341] ? should_fail+0x22d/0xd01 [ 381.659236] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 381.664341] ? zap_class+0x640/0x640 [ 381.668073] ? __lock_is_held+0xb5/0x140 [ 381.672160] ? mark_held_locks+0x130/0x130 [ 381.676409] ? lock_release+0xa00/0xa00 [ 381.680413] ? perf_trace_sched_process_exec+0x860/0x860 [ 381.685861] ? xa_load+0x2ba/0x460 [ 381.689403] ? lock_downgrade+0x900/0x900 [ 381.693552] ? __might_sleep+0x95/0x190 [ 381.697533] __alloc_pages_nodemask+0xad8/0xea0 [ 381.702200] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 381.707209] ? __page_cache_alloc+0x191/0x5c0 [ 381.711693] ? xa_load+0x2e1/0x460 [ 381.715259] ? xa_clear_mark+0x40/0x40 [ 381.719155] ? zap_class+0x640/0x640 [ 381.722868] ? zap_class+0x640/0x640 [ 381.726579] ? zap_class+0x640/0x640 [ 381.730291] ? __do_page_cache_readahead+0x663/0x810 [ 381.735395] ? find_held_lock+0x36/0x1c0 [ 381.739457] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 381.744996] alloc_pages_current+0x173/0x350 [ 381.749407] __page_cache_alloc+0x38c/0x5c0 [ 381.753734] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 381.758667] ? kasan_check_read+0x11/0x20 [ 381.762825] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 381.768097] ? generic_perform_write+0x6a0/0x6a0 [ 381.772854] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 381.778404] ? check_preemption_disabled+0x48/0x280 [ 381.783429] filemap_fault+0x1595/0x25f0 [ 381.787500] ? __lock_page_or_retry+0xa00/0xa00 [ 381.792165] ? mark_held_locks+0x130/0x130 [ 381.796428] ? filemap_map_pages+0xd6b/0x1a20 [ 381.800920] ? lock_downgrade+0x900/0x900 [ 381.805064] ? check_preemption_disabled+0x48/0x280 [ 381.810075] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 381.815000] ? kasan_check_read+0x11/0x20 [ 381.819148] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 381.824435] ? rcu_softirq_qs+0x20/0x20 [ 381.828419] ? filemap_map_pages+0xd92/0x1a20 [ 381.832926] ? find_get_entries_tag+0x1400/0x1400 [ 381.837787] ? debug_object_destroy+0x2b0/0x2b0 [ 381.842460] ? lock_pi_update_atomic+0x150/0x150 [ 381.847226] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 381.852767] ? lock_acquire+0x1ed/0x520 [ 381.856759] ? ext4_filemap_fault+0x7a/0xad [ 381.861096] ? lock_release+0xa00/0xa00 [ 381.865067] ? perf_trace_sched_process_exec+0x860/0x860 [ 381.870511] ? print_usage_bug+0xc0/0xc0 [ 381.874584] ? print_usage_bug+0xc0/0xc0 [ 381.878694] ? down_read+0x8d/0x120 [ 381.882315] ? ext4_filemap_fault+0x7a/0xad [ 381.886649] ? __down_interruptible+0x700/0x700 [ 381.891320] ext4_filemap_fault+0x82/0xad [ 381.895466] __do_fault+0x100/0x6b0 [ 381.899082] ? find_held_lock+0x36/0x1c0 [ 381.903143] ? pmd_devmap_trans_unstable+0x220/0x220 [ 381.908256] ? mark_held_locks+0x130/0x130 [ 381.912486] ? mark_held_locks+0x130/0x130 [ 381.916740] ? kasan_check_read+0x11/0x20 [ 381.920886] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 381.926448] __handle_mm_fault+0x3ea0/0x5be0 [ 381.930882] ? perf_trace_lock+0x7a0/0x7a0 [ 381.935132] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 381.939978] ? __switch_to_asm+0x34/0x70 [ 381.944034] ? __switch_to_asm+0x34/0x70 [ 381.948105] ? zap_class+0x640/0x640 [ 381.951821] ? zap_class+0x640/0x640 [ 381.955555] ? __x64_sys_futex+0x53e/0x6a0 [ 381.959803] ? find_held_lock+0x36/0x1c0 [ 381.963901] ? handle_mm_fault+0x42a/0xc70 [ 381.968152] ? lock_downgrade+0x900/0x900 [ 381.972311] ? check_preemption_disabled+0x48/0x280 [ 381.977325] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 381.982248] ? kasan_check_read+0x11/0x20 [ 381.986417] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 381.991693] ? rcu_softirq_qs+0x20/0x20 [ 381.995670] ? trace_hardirqs_off_caller+0x310/0x310 [ 382.000789] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 382.006322] ? sync_mm_rss+0x9a/0x1c0 [ 382.010131] handle_mm_fault+0x54f/0xc70 [ 382.014221] ? __handle_mm_fault+0x5be0/0x5be0 [ 382.018805] ? find_vma+0x34/0x190 [ 382.022355] __do_page_fault+0x5e8/0xe60 [ 382.026428] ? trace_hardirqs_off+0xb8/0x310 [ 382.030842] do_page_fault+0xf2/0x7e0 [ 382.034639] ? vmalloc_sync_all+0x30/0x30 [ 382.038780] ? error_entry+0x70/0xd0 [ 382.042487] ? trace_hardirqs_off_caller+0xbb/0x310 [ 382.047495] ? trace_hardirqs_on_caller+0xc0/0x310 [ 382.052455] ? syscall_return_slowpath+0x5e0/0x5e0 [ 382.057382] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 382.062252] ? trace_hardirqs_on_caller+0x310/0x310 [ 382.067264] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 382.072709] ? prepare_exit_to_usermode+0x291/0x3b0 [ 382.077715] ? page_fault+0x8/0x30 [ 382.081250] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 382.086083] ? page_fault+0x8/0x30 [ 382.089621] page_fault+0x1e/0x30 [ 382.093101] RIP: 0033:0x45ddf3 [ 382.096329] Code: Bad RIP value. [ 382.099690] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 382.105049] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 382.112324] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 382.119605] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 382.126873] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 382.134168] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 382.141468] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 382.141473] warn_alloc_show_mem: 1 callbacks suppressed [ 382.141480] Mem-Info: [ 382.148774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 382.154149] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 382.154149] active_file:17 inactive_file:17 isolated_file:0 [ 382.154149] unevictable:0 dirty:4 writeback:0 unstable:0 [ 382.154149] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 382.154149] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 382.154149] free:13550 free_pcp:124 free_cma:0 [ 382.156520] Call Trace: [ 382.165924] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 382.198940] [ 382.201508] 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 [ 382.229278] dump_stack+0x244/0x39d [ 382.231403] lowmem_reserve[]: 0 2818 6321 6321 [ 382.257508] ? dump_stack_print_info.cold.1+0x20/0x20 [ 382.261106] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 382.265702] warn_alloc.cold.116+0xb7/0x1bd [ 382.270859] lowmem_reserve[]: 0 0 3503 3503 [ 382.298174] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 382.302466] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 382.306775] ? lock_downgrade+0x900/0x900 [ 382.311587] lowmem_reserve[]: 0 0 0 0 [ 382.340475] ? trace_hardirqs_off+0xb8/0x310 [ 382.344592] 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 [ 382.348453] ? trace_hardirqs_off+0xb8/0x310 [ 382.352859] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 382.366376] __alloc_pages_slowpath+0x2651/0x2de0 [ 382.370757] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 382.385548] ? warn_alloc+0x120/0x120 [ 382.390350] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 382.405071] ? print_usage_bug+0xc0/0xc0 [ 382.408864] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 382.417698] ? warn_alloc+0x120/0x120 [ 382.421738] 1360 total pagecache pages [ 382.430325] ? warn_alloc+0x120/0x120 [ 382.434112] 0 pages in swap cache [ 382.437992] ? print_usage_bug+0xc0/0xc0 [ 382.441769] Swap cache stats: add 0, delete 0, find 0/0 [ 382.445223] ? kvm_clock_read+0x18/0x30 [ 382.449253] Free swap = 0kB [ 382.454625] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 382.458577] Total swap = 0kB [ 382.461590] ? print_usage_bug+0xc0/0xc0 [ 382.466589] 1965979 pages RAM [ 382.469600] ? __lock_acquire+0x62f/0x4c20 [ 382.473639] 0 pages HighMem/MovableOnly [ 382.476737] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 382.480944] 342854 pages reserved [ 382.484907] ? should_fail+0x22d/0xd01 [ 382.484922] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 382.490438] 0 pages cma reserved [ 382.493883] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 382.497823] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 382.503011] ? __lock_acquire+0x62f/0x4c20 [ 382.503030] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 382.503046] ? __lock_acquire+0x62f/0x4c20 [ 382.506466] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 382.511527] ? should_fail+0x22d/0xd01 [ 382.517992] syz-fuzzer cpuset=/ mems_allowed=0 [ 382.522231] ? rcu_irq_exit+0x1a2/0x390 [ 382.554174] ? mark_held_locks+0x130/0x130 [ 382.558433] ? mark_held_locks+0x130/0x130 [ 382.562669] ? mark_held_locks+0xc7/0x130 [ 382.566818] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 382.571850] ? zap_class+0x640/0x640 [ 382.575563] ? print_usage_bug+0xc0/0xc0 [ 382.579658] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 382.585195] ? check_preemption_disabled+0x48/0x280 [ 382.590222] ? __lock_is_held+0xb5/0x140 [ 382.594306] __alloc_pages_nodemask+0xad8/0xea0 [ 382.598976] ? zap_class+0x640/0x640 [ 382.602715] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 382.607742] ? find_held_lock+0x36/0x1c0 [ 382.611812] ? ____cache_alloc_node+0x1c7/0x1e0 [ 382.616483] ? lock_downgrade+0x900/0x900 [ 382.620639] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 382.626182] cache_grow_begin+0xa5/0x8c0 [ 382.630244] ? do_raw_spin_unlock+0xa7/0x330 [ 382.634657] fallback_alloc+0x204/0x2e0 [ 382.638634] ____cache_alloc_node+0x1c7/0x1e0 [ 382.643178] kmem_cache_alloc_node+0xe3/0x730 [ 382.647736] ? ipv6_get_ifaddr+0x42e/0x620 [ 382.651995] __alloc_skb+0x119/0x770 [ 382.655704] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 382.660987] ? netdev_alloc_frag+0x1f0/0x1f0 [ 382.665399] ? lock_downgrade+0x900/0x900 [ 382.669566] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 382.675102] ? refcount_sub_and_test_checked+0x203/0x310 [ 382.680562] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 382.686016] ? addrconf_rs_timer+0x690/0x690 [ 382.690438] ndisc_alloc_skb+0x144/0x340 [ 382.694502] ndisc_send_rs+0x331/0x6e0 [ 382.698399] addrconf_rs_timer+0x314/0x690 [ 382.702659] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 382.706915] call_timer_fn+0x272/0x920 [ 382.710800] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 382.715061] ? process_timeout+0x40/0x40 [ 382.719138] ? __run_timers+0x7da/0xc70 [ 382.723116] ? _raw_spin_unlock_irq+0x27/0x80 [ 382.727632] ? _raw_spin_unlock_irq+0x27/0x80 [ 382.732131] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 382.736366] ? lockdep_hardirqs_on+0x296/0x5b0 [ 382.740953] ? trace_hardirqs_on+0xbd/0x310 [ 382.745287] ? kasan_check_read+0x11/0x20 [ 382.749434] ? __run_timers+0x7da/0xc70 [ 382.753426] ? trace_hardirqs_off_caller+0x310/0x310 [ 382.758545] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 382.762785] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 382.767017] __run_timers+0x7e5/0xc70 [ 382.770842] ? timer_fixup_init+0x70/0x70 [ 382.774987] ? kasan_check_read+0x11/0x20 [ 382.779139] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 382.784436] ? rcu_softirq_qs+0x20/0x20 [ 382.788452] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 382.793987] ? check_preemption_disabled+0x48/0x280 [ 382.799004] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 382.803758] ? retint_kernel+0x2d/0x2d [ 382.807677] ? trace_hardirqs_on_caller+0xc0/0x310 [ 382.812615] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 382.817366] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 382.822830] ? zap_class+0x640/0x640 [ 382.826657] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 382.832190] ? check_preemption_disabled+0x48/0x280 [ 382.837214] ? __lock_is_held+0xb5/0x140 [ 382.841274] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 382.846839] ? check_preemption_disabled+0x48/0x280 [ 382.851860] run_timer_softirq+0x52/0xb0 [ 382.855933] ? rcu_read_lock_sched_held+0x14f/0x180 [ 382.860963] __do_softirq+0x308/0xb7e [ 382.864792] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 382.869285] ? lock_downgrade+0x900/0x900 [ 382.873441] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 382.878572] ? pvclock_read_flags+0x160/0x160 [ 382.883069] ? lapic_next_event+0x5a/0x90 [ 382.887224] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 382.892764] ? kvm_clock_read+0x18/0x30 [ 382.896737] ? kvm_sched_clock_read+0x9/0x20 [ 382.901158] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 382.906694] ? check_preemption_disabled+0x48/0x280 [ 382.911721] irq_exit+0x17f/0x1c0 [ 382.915178] smp_apic_timer_interrupt+0x1cb/0x760 [ 382.920023] ? smp_reschedule_interrupt+0x109/0x650 [ 382.925039] ? smp_call_function_single_interrupt+0x650/0x650 [ 382.930926] ? interrupt_entry+0xb5/0xc0 [ 382.934990] ? trace_hardirqs_off_caller+0xbb/0x310 [ 382.940006] ? trace_hardirqs_off_caller+0xbb/0x310 [ 382.945042] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 382.950101] ? trace_hardirqs_on_caller+0x310/0x310 [ 382.955132] ? trace_hardirqs_on_caller+0x310/0x310 [ 382.960171] ? task_prio+0x50/0x50 [ 382.963726] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 382.969262] ? check_preemption_disabled+0x48/0x280 [ 382.974290] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 382.979146] apic_timer_interrupt+0xf/0x20 [ 382.983375] [ 382.985622] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 382.990552] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 383.009447] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 383.017151] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 383.024431] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 383.031716] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 383.038974] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 383.046264] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 383.053576] skb_clone+0x1bb/0x500 [ 383.057114] ? skb_split+0x11e0/0x11e0 [ 383.061010] ? preempt_notifier_register+0x200/0x200 [ 383.066160] ? __switch_to_asm+0x34/0x70 [ 383.070247] ? __switch_to_asm+0x34/0x70 [ 383.074302] ? __switch_to_asm+0x40/0x70 [ 383.078385] ? __switch_to_asm+0x34/0x70 [ 383.082613] ? __switch_to_asm+0x40/0x70 [ 383.086683] ? __switch_to_asm+0x40/0x70 [ 383.090739] ? __switch_to_asm+0x34/0x70 [ 383.094795] ? __switch_to_asm+0x34/0x70 [ 383.098852] ? __switch_to_asm+0x40/0x70 [ 383.102905] ? __switch_to_asm+0x34/0x70 [ 383.106966] bpf_clone_redirect+0xb9/0x490 [ 383.111209] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 383.116230] ? __sched_text_start+0x8/0x8 [ 383.120398] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 383.125166] ? find_held_lock+0x36/0x1c0 [ 383.129241] ? lock_acquire+0x1ed/0x520 [ 383.133218] ? bpf_test_run+0x3ee/0x7a0 [ 383.137193] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 383.142730] ? check_preemption_disabled+0x48/0x280 [ 383.147770] ? kasan_check_read+0x11/0x20 [ 383.151946] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 383.157224] ? rcu_softirq_qs+0x20/0x20 [ 383.161207] ? preempt_schedule+0x4d/0x60 [ 383.165357] ? ___preempt_schedule+0x16/0x18 [ 383.169775] ? bpf_test_run+0x271/0x7a0 [ 383.173764] ? netlink_diag_dump+0x2a0/0x2a0 [ 383.178174] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 383.183711] ? bpf_test_init.isra.10+0x70/0x100 [ 383.188384] ? bpf_prog_test_run_skb+0x762/0xd60 [ 383.193154] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 383.198014] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 383.203564] ? fput+0x130/0x1a0 [ 383.206847] ? __bpf_prog_get+0x9b/0x290 [ 383.210912] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 383.215803] ? bpf_prog_test_run+0x130/0x1a0 [ 383.220228] ? __x64_sys_bpf+0x3d8/0x520 [ 383.224308] ? bpf_prog_get+0x20/0x20 [ 383.228129] ? do_syscall_64+0x1b9/0x820 [ 383.232185] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 383.237544] ? syscall_return_slowpath+0x5e0/0x5e0 [ 383.242467] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 383.247307] ? trace_hardirqs_on_caller+0x310/0x310 [ 383.252332] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 383.257366] ? prepare_exit_to_usermode+0x291/0x3b0 [ 383.262383] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 383.267270] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 383.272659] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 383.272745] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 383.279590] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 383.279598] Call Trace: [ 383.286167] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 383.295451] [ 383.298023] syz-executor4 cpuset=syz4 mems_allowed=0 [ 383.308510] dump_stack+0x244/0x39d [ 383.319363] ? dump_stack_print_info.cold.1+0x20/0x20 [ 383.324558] warn_alloc.cold.116+0xb7/0x1bd [ 383.328918] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 383.333756] ? lock_downgrade+0x900/0x900 [ 383.337930] ? trace_hardirqs_off+0xb8/0x310 [ 383.342347] ? trace_hardirqs_off+0xb8/0x310 [ 383.346758] __alloc_pages_slowpath+0x2651/0x2de0 [ 383.351633] ? warn_alloc+0x120/0x120 [ 383.355430] ? print_usage_bug+0xc0/0xc0 [ 383.359493] ? warn_alloc+0x120/0x120 [ 383.363311] ? warn_alloc+0x120/0x120 [ 383.367177] ? print_usage_bug+0xc0/0xc0 [ 383.371243] ? print_usage_bug+0xc0/0xc0 [ 383.375299] ? __lock_acquire+0x62f/0x4c20 [ 383.379533] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 383.385093] ? should_fail+0x22d/0xd01 [ 383.389002] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 383.394100] ? __lock_acquire+0x62f/0x4c20 [ 383.398342] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 383.403439] ? __lock_acquire+0x62f/0x4c20 [ 383.407678] ? should_fail+0x22d/0xd01 [ 383.411605] ? find_held_lock+0x36/0x1c0 [ 383.415667] ? mark_held_locks+0x130/0x130 [ 383.419905] ? mark_held_locks+0x130/0x130 [ 383.424143] ? zap_class+0x640/0x640 [ 383.427851] ? zap_class+0x640/0x640 [ 383.431578] ? print_usage_bug+0xc0/0xc0 [ 383.435649] ? do_raw_spin_unlock+0xa7/0x330 [ 383.440060] ? zap_class+0x640/0x640 [ 383.443786] ? print_usage_bug+0xc0/0xc0 [ 383.447859] ? wq_watchdog_touch+0x9c/0xfe [ 383.452097] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 383.457645] ? check_preemption_disabled+0x48/0x280 [ 383.462673] ? __lock_is_held+0xb5/0x140 [ 383.466738] __alloc_pages_nodemask+0xad8/0xea0 [ 383.471408] ? zap_class+0x640/0x640 [ 383.475147] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 383.480173] ? find_held_lock+0x36/0x1c0 [ 383.484257] ? ____cache_alloc_node+0x1c7/0x1e0 [ 383.488927] ? lock_downgrade+0x900/0x900 [ 383.493081] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 383.498625] cache_grow_begin+0xa5/0x8c0 [ 383.502714] ? do_raw_spin_unlock+0xa7/0x330 [ 383.507141] fallback_alloc+0x204/0x2e0 [ 383.511135] ____cache_alloc_node+0x1c7/0x1e0 [ 383.515641] kmem_cache_alloc_node+0xe3/0x730 [ 383.520145] ? ipv6_get_ifaddr+0x42e/0x620 [ 383.524391] __alloc_skb+0x119/0x770 [ 383.528115] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 383.533404] ? netdev_alloc_frag+0x1f0/0x1f0 [ 383.537825] ? lock_downgrade+0x900/0x900 [ 383.541990] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 383.547546] ? refcount_sub_and_test_checked+0x203/0x310 [ 383.552996] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 383.558443] ? addrconf_rs_timer+0x690/0x690 [ 383.562861] ndisc_alloc_skb+0x144/0x340 [ 383.566924] ndisc_send_rs+0x331/0x6e0 [ 383.570832] addrconf_rs_timer+0x314/0x690 [ 383.575077] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 383.579323] call_timer_fn+0x272/0x920 [ 383.583209] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 383.587442] ? process_timeout+0x40/0x40 [ 383.591507] ? mark_held_locks+0xc7/0x130 [ 383.595652] ? _raw_spin_unlock_irq+0x27/0x80 [ 383.600147] ? _raw_spin_unlock_irq+0x27/0x80 [ 383.604640] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 383.608878] ? lockdep_hardirqs_on+0x296/0x5b0 [ 383.613494] ? trace_hardirqs_on+0xbd/0x310 [ 383.617809] ? kasan_check_read+0x11/0x20 [ 383.621947] ? __run_timers+0x7da/0xc70 [ 383.625923] ? trace_hardirqs_off_caller+0x310/0x310 [ 383.631028] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 383.635275] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 383.639535] __run_timers+0x7e5/0xc70 [ 383.643345] ? timer_fixup_init+0x70/0x70 [ 383.647505] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 383.652533] ? zap_class+0x640/0x640 [ 383.656266] ? print_usage_bug+0xc0/0xc0 [ 383.660327] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 383.665525] ? find_held_lock+0x36/0x1c0 [ 383.669590] ? zap_class+0x640/0x640 [ 383.673308] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 383.678864] ? check_preemption_disabled+0x48/0x280 [ 383.683906] ? __lock_is_held+0xb5/0x140 [ 383.687970] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 383.693507] ? check_preemption_disabled+0x48/0x280 [ 383.698523] run_timer_softirq+0x52/0xb0 [ 383.702578] ? rcu_read_lock_sched_held+0x14f/0x180 [ 383.707588] __do_softirq+0x308/0xb7e [ 383.711463] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 383.715957] ? lock_downgrade+0x900/0x900 [ 383.720109] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 383.725223] ? pvclock_read_flags+0x160/0x160 [ 383.729716] ? lapic_next_event+0x5a/0x90 [ 383.733879] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 383.739422] ? kvm_clock_read+0x18/0x30 [ 383.743396] ? kvm_sched_clock_read+0x9/0x20 [ 383.747824] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 383.753362] ? check_preemption_disabled+0x48/0x280 [ 383.758386] irq_exit+0x17f/0x1c0 [ 383.761843] smp_apic_timer_interrupt+0x1cb/0x760 [ 383.766682] ? smp_reschedule_interrupt+0x109/0x650 [ 383.771693] ? smp_call_function_single_interrupt+0x650/0x650 [ 383.777585] ? interrupt_entry+0xb5/0xc0 [ 383.781655] ? trace_hardirqs_off_caller+0xbb/0x310 [ 383.786665] ? trace_hardirqs_off_caller+0xbb/0x310 [ 383.791692] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 383.796526] ? trace_hardirqs_on_caller+0x310/0x310 [ 383.801532] ? trace_hardirqs_on_caller+0x310/0x310 [ 383.806563] ? task_prio+0x50/0x50 [ 383.810103] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 383.815661] ? check_preemption_disabled+0x48/0x280 [ 383.820689] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 383.825574] apic_timer_interrupt+0xf/0x20 [ 383.829831] [ 383.832076] RIP: 0010:lock_acquire+0x268/0x520 [ 383.836679] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 383.855578] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 383.863280] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 383.870549] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 383.877814] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 383.885078] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 383.892341] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 383.899630] ? lruvec_lru_size+0x450/0x450 [ 383.903866] ? kasan_check_read+0x11/0x20 [ 383.908017] ? lock_release+0xa00/0xa00 [ 383.911991] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 383.916935] down_read_trylock+0xda/0x140 [ 383.921105] ? shrink_slab+0x207/0x8c0 [ 383.924998] ? downgrade_write+0x270/0x270 [ 383.929245] shrink_slab+0x207/0x8c0 [ 383.932964] ? shrink_active_list+0x1f00/0x1f00 [ 383.937642] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 383.943263] ? __lock_acquire+0x62f/0x4c20 [ 383.947499] ? percpu_ref_get_many+0x240/0x240 [ 383.952095] ? print_usage_bug+0xc0/0xc0 [ 383.956185] shrink_node+0x431/0x16b0 [ 383.959985] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 383.965282] ? shrink_node_memcg+0x18f0/0x18f0 [ 383.969871] ? kvm_clock_read+0x18/0x30 [ 383.973851] ? ktime_get+0x2c1/0x400 [ 383.977569] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 383.982066] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 383.987654] ? __cpuset_node_allowed+0x19b/0x660 [ 383.992420] ? mark_held_locks+0x130/0x130 [ 383.996649] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 384.002351] ? zap_class+0x640/0x640 [ 384.006064] do_try_to_free_pages+0x3e7/0x1290 [ 384.010665] ? zap_class+0x640/0x640 [ 384.014419] ? shrink_node+0x16b0/0x16b0 [ 384.018475] ? __lock_is_held+0xb5/0x140 [ 384.022544] try_to_free_pages+0x4d0/0xb90 [ 384.026822] ? do_try_to_free_pages+0x1290/0x1290 [ 384.031673] ? lock_acquire+0x1ed/0x520 [ 384.035675] ? set_page_refcounted+0x280/0x280 [ 384.040268] ? lock_release+0xa00/0xa00 [ 384.044267] ? _raw_spin_unlock_irq+0x60/0x80 [ 384.048760] ? psi_memstall_enter+0x240/0x2b0 [ 384.053256] ? psi_memstall_tick+0x230/0x230 [ 384.057674] __alloc_pages_slowpath+0xa48/0x2de0 [ 384.062457] ? warn_alloc+0x120/0x120 [ 384.066254] ? mark_held_locks+0x130/0x130 [ 384.070504] ? find_get_entry+0xaae/0x1120 [ 384.074743] ? filemap_map_pages+0x1a20/0x1a20 [ 384.079332] ? zap_class+0x640/0x640 [ 384.083054] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 384.088598] ? check_preemption_disabled+0x48/0x280 [ 384.093616] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 384.099193] ? should_fail+0x22d/0xd01 [ 384.103108] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 384.108231] ? zap_class+0x640/0x640 [ 384.111971] ? __lock_is_held+0xb5/0x140 [ 384.116090] ? mark_held_locks+0x130/0x130 [ 384.120350] ? lock_release+0xa00/0xa00 [ 384.124327] ? perf_trace_sched_process_exec+0x860/0x860 [ 384.129778] ? xa_load+0x2ba/0x460 [ 384.133314] ? lock_downgrade+0x900/0x900 [ 384.137465] ? __might_sleep+0x95/0x190 [ 384.141468] __alloc_pages_nodemask+0xad8/0xea0 [ 384.146175] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 384.151187] ? __page_cache_alloc+0x191/0x5c0 [ 384.155675] ? xa_load+0x2e1/0x460 [ 384.159208] ? xa_clear_mark+0x40/0x40 [ 384.163107] ? zap_class+0x640/0x640 [ 384.166863] ? zap_class+0x640/0x640 [ 384.170572] ? zap_class+0x640/0x640 [ 384.174280] ? __do_page_cache_readahead+0x663/0x810 [ 384.179382] ? find_held_lock+0x36/0x1c0 [ 384.183443] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 384.188978] alloc_pages_current+0x173/0x350 [ 384.193384] __page_cache_alloc+0x38c/0x5c0 [ 384.197696] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 384.202631] ? kasan_check_read+0x11/0x20 [ 384.206787] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 384.212082] ? generic_perform_write+0x6a0/0x6a0 [ 384.216837] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 384.222366] ? check_preemption_disabled+0x48/0x280 [ 384.227396] filemap_fault+0x1595/0x25f0 [ 384.231462] ? __lock_page_or_retry+0xa00/0xa00 [ 384.236163] ? mark_held_locks+0x130/0x130 [ 384.240446] ? filemap_map_pages+0xd6b/0x1a20 [ 384.244937] ? lock_downgrade+0x900/0x900 [ 384.249080] ? check_preemption_disabled+0x48/0x280 [ 384.254098] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 384.259027] ? kasan_check_read+0x11/0x20 [ 384.263168] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 384.268468] ? rcu_softirq_qs+0x20/0x20 [ 384.272463] ? filemap_map_pages+0xd92/0x1a20 [ 384.276967] ? find_get_entries_tag+0x1400/0x1400 [ 384.281805] ? debug_object_destroy+0x2b0/0x2b0 [ 384.286506] ? lock_pi_update_atomic+0x150/0x150 [ 384.291271] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 384.296827] ? lock_acquire+0x1ed/0x520 [ 384.300809] ? ext4_filemap_fault+0x7a/0xad [ 384.305137] ? lock_release+0xa00/0xa00 [ 384.309149] ? perf_trace_sched_process_exec+0x860/0x860 [ 384.314643] ? print_usage_bug+0xc0/0xc0 [ 384.318721] ? print_usage_bug+0xc0/0xc0 [ 384.322819] ? down_read+0x8d/0x120 [ 384.326470] ? ext4_filemap_fault+0x7a/0xad [ 384.330790] ? __down_interruptible+0x700/0x700 [ 384.335465] ext4_filemap_fault+0x82/0xad [ 384.339615] __do_fault+0x100/0x6b0 [ 384.343238] ? find_held_lock+0x36/0x1c0 [ 384.347298] ? pmd_devmap_trans_unstable+0x220/0x220 [ 384.352415] ? mark_held_locks+0x130/0x130 [ 384.356677] ? mark_held_locks+0x130/0x130 [ 384.360918] ? kasan_check_read+0x11/0x20 [ 384.365061] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 384.370786] __handle_mm_fault+0x3ea0/0x5be0 [ 384.375192] ? perf_trace_lock+0x7a0/0x7a0 [ 384.379428] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 384.384267] ? __switch_to_asm+0x34/0x70 [ 384.388325] ? __switch_to_asm+0x34/0x70 [ 384.392392] ? zap_class+0x640/0x640 [ 384.396107] ? zap_class+0x640/0x640 [ 384.399839] ? __x64_sys_futex+0x53e/0x6a0 [ 384.404097] ? find_held_lock+0x36/0x1c0 [ 384.408239] ? handle_mm_fault+0x42a/0xc70 [ 384.412509] ? lock_downgrade+0x900/0x900 [ 384.416649] ? check_preemption_disabled+0x48/0x280 [ 384.421663] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 384.426614] ? kasan_check_read+0x11/0x20 [ 384.430775] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 384.436056] ? rcu_softirq_qs+0x20/0x20 [ 384.440027] ? trace_hardirqs_off_caller+0x310/0x310 [ 384.445142] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 384.450677] ? sync_mm_rss+0x9a/0x1c0 [ 384.454480] handle_mm_fault+0x54f/0xc70 [ 384.458541] ? __handle_mm_fault+0x5be0/0x5be0 [ 384.463130] ? find_vma+0x34/0x190 [ 384.466706] __do_page_fault+0x5e8/0xe60 [ 384.470790] ? trace_hardirqs_off+0xb8/0x310 [ 384.475225] do_page_fault+0xf2/0x7e0 [ 384.479025] ? vmalloc_sync_all+0x30/0x30 [ 384.483171] ? error_entry+0x70/0xd0 [ 384.486900] ? trace_hardirqs_off_caller+0xbb/0x310 [ 384.491913] ? trace_hardirqs_on_caller+0xc0/0x310 [ 384.496840] ? syscall_return_slowpath+0x5e0/0x5e0 [ 384.501767] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 384.506608] ? trace_hardirqs_on_caller+0x310/0x310 [ 384.511648] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 384.517114] ? prepare_exit_to_usermode+0x291/0x3b0 [ 384.522146] ? page_fault+0x8/0x30 [ 384.525702] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 384.530547] ? page_fault+0x8/0x30 [ 384.534097] page_fault+0x1e/0x30 [ 384.537554] RIP: 0033:0x45ddf3 [ 384.540765] Code: Bad RIP value. [ 384.544119] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 384.549486] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 384.556750] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 384.564014] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 384.571277] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 384.578537] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 384.585844] warn_alloc_show_mem: 1 callbacks suppressed [ 384.585855] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 384.585857] Mem-Info: [ 384.585886] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 384.585886] active_file:17 inactive_file:17 isolated_file:0 [ 384.585886] unevictable:0 dirty:4 writeback:0 unstable:0 [ 384.585886] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 384.585886] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 384.585886] free:13550 free_pcp:124 free_cma:0 [ 384.591223] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 384.598493] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 384.600889] Call Trace: [ 384.633938] 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 [ 384.643275] [ 384.671008] lowmem_reserve[]: 0 2818 6321 6321 [ 384.673602] dump_stack+0x244/0x39d [ 384.699688] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 384.701832] ? dump_stack_print_info.cold.1+0x20/0x20 [ 384.706388] lowmem_reserve[]: 0 0 3503 3503 [ 384.710031] warn_alloc.cold.116+0xb7/0x1bd [ 384.737327] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 384.742507] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 384.746799] lowmem_reserve[]: 0 0 0 0 [ 384.751129] ? lock_downgrade+0x900/0x900 [ 384.780001] 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 [ 384.784855] ? trace_hardirqs_off+0xb8/0x310 [ 384.788659] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 384.792808] ? trace_hardirqs_off+0xb8/0x310 [ 384.806324] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 384.810727] __alloc_pages_slowpath+0x2651/0x2de0 [ 384.825439] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 384.829883] ? warn_alloc+0x120/0x120 [ 384.844584] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 384.849411] ? print_usage_bug+0xc0/0xc0 [ 384.858220] 1360 total pagecache pages [ 384.862010] ? warn_alloc+0x120/0x120 [ 384.870569] 0 pages in swap cache [ 384.874616] ? warn_alloc+0x120/0x120 [ 384.878482] Swap cache stats: add 0, delete 0, find 0/0 [ 384.882271] ? print_usage_bug+0xc0/0xc0 [ 384.885719] Free swap = 0kB [ 384.889512] ? kvm_clock_read+0x18/0x30 [ 384.894847] Total swap = 0kB [ 384.898910] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 384.898925] ? print_usage_bug+0xc0/0xc0 [ 384.901924] 1965979 pages RAM [ 384.905889] ? __lock_acquire+0x62f/0x4c20 [ 384.908889] 0 pages HighMem/MovableOnly [ 384.913918] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 384.917954] 342854 pages reserved [ 384.921059] ? should_fail+0x22d/0xd01 [ 384.925267] 0 pages cma reserved [ 384.929237] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 384.934822] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 384.938197] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 384.942218] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 384.945421] ? __lock_acquire+0x62f/0x4c20 [ 384.945439] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 384.951202] syz-fuzzer cpuset=/ mems_allowed=0 [ 384.957709] ? __lock_acquire+0x62f/0x4c20 [ 384.957725] ? should_fail+0x22d/0xd01 [ 384.995171] ? rcu_irq_exit+0x1a2/0x390 [ 384.999179] ? mark_held_locks+0x130/0x130 [ 385.003421] ? mark_held_locks+0x130/0x130 [ 385.007712] ? mark_held_locks+0xc7/0x130 [ 385.011860] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 385.016884] ? zap_class+0x640/0x640 [ 385.020611] ? print_usage_bug+0xc0/0xc0 [ 385.024674] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 385.030212] ? check_preemption_disabled+0x48/0x280 [ 385.035236] ? __lock_is_held+0xb5/0x140 [ 385.039309] __alloc_pages_nodemask+0xad8/0xea0 [ 385.043971] ? zap_class+0x640/0x640 [ 385.047705] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 385.052731] ? find_held_lock+0x36/0x1c0 [ 385.056797] ? ____cache_alloc_node+0x1c7/0x1e0 [ 385.061492] ? lock_downgrade+0x900/0x900 [ 385.065644] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 385.071182] cache_grow_begin+0xa5/0x8c0 [ 385.075235] ? do_raw_spin_unlock+0xa7/0x330 [ 385.079887] fallback_alloc+0x204/0x2e0 [ 385.083876] ____cache_alloc_node+0x1c7/0x1e0 [ 385.088427] kmem_cache_alloc_node+0xe3/0x730 [ 385.092933] ? ipv6_get_ifaddr+0x42e/0x620 [ 385.097179] __alloc_skb+0x119/0x770 [ 385.100927] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 385.106206] ? netdev_alloc_frag+0x1f0/0x1f0 [ 385.110610] ? lock_downgrade+0x900/0x900 [ 385.114777] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 385.120306] ? refcount_sub_and_test_checked+0x203/0x310 [ 385.125794] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 385.131290] ? addrconf_rs_timer+0x690/0x690 [ 385.135722] ndisc_alloc_skb+0x144/0x340 [ 385.139828] ndisc_send_rs+0x331/0x6e0 [ 385.143716] addrconf_rs_timer+0x314/0x690 [ 385.147952] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 385.152199] call_timer_fn+0x272/0x920 [ 385.156083] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 385.160311] ? process_timeout+0x40/0x40 [ 385.164377] ? __run_timers+0x7da/0xc70 [ 385.168352] ? _raw_spin_unlock_irq+0x27/0x80 [ 385.172842] ? _raw_spin_unlock_irq+0x27/0x80 [ 385.177349] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 385.181631] ? lockdep_hardirqs_on+0x296/0x5b0 [ 385.186212] ? trace_hardirqs_on+0xbd/0x310 [ 385.190530] ? kasan_check_read+0x11/0x20 [ 385.194674] ? __run_timers+0x7da/0xc70 [ 385.198664] ? trace_hardirqs_off_caller+0x310/0x310 [ 385.203762] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 385.208011] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 385.212287] __run_timers+0x7e5/0xc70 [ 385.216163] ? timer_fixup_init+0x70/0x70 [ 385.220318] ? kasan_check_read+0x11/0x20 [ 385.224459] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 385.229758] ? rcu_softirq_qs+0x20/0x20 [ 385.233726] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 385.239260] ? check_preemption_disabled+0x48/0x280 [ 385.244294] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 385.249051] ? retint_kernel+0x2d/0x2d [ 385.252936] ? trace_hardirqs_on_caller+0xc0/0x310 [ 385.257865] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 385.262615] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 385.268076] ? zap_class+0x640/0x640 [ 385.271787] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 385.277320] ? check_preemption_disabled+0x48/0x280 [ 385.282337] ? __lock_is_held+0xb5/0x140 [ 385.286400] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 385.291936] ? check_preemption_disabled+0x48/0x280 [ 385.296966] run_timer_softirq+0x52/0xb0 [ 385.301024] ? rcu_read_lock_sched_held+0x14f/0x180 [ 385.306035] __do_softirq+0x308/0xb7e [ 385.309833] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 385.314354] ? lock_downgrade+0x900/0x900 [ 385.318504] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 385.323612] ? pvclock_read_flags+0x160/0x160 [ 385.328105] ? lapic_next_event+0x5a/0x90 [ 385.332266] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 385.337801] ? kvm_clock_read+0x18/0x30 [ 385.341803] ? kvm_sched_clock_read+0x9/0x20 [ 385.346226] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 385.351759] ? check_preemption_disabled+0x48/0x280 [ 385.356777] irq_exit+0x17f/0x1c0 [ 385.360244] smp_apic_timer_interrupt+0x1cb/0x760 [ 385.365078] ? smp_reschedule_interrupt+0x109/0x650 [ 385.370090] ? smp_call_function_single_interrupt+0x650/0x650 [ 385.375966] ? interrupt_entry+0xb5/0xc0 [ 385.380022] ? trace_hardirqs_off_caller+0xbb/0x310 [ 385.385029] ? trace_hardirqs_off_caller+0xbb/0x310 [ 385.390038] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 385.394872] ? trace_hardirqs_on_caller+0x310/0x310 [ 385.399916] ? trace_hardirqs_on_caller+0x310/0x310 [ 385.404947] ? task_prio+0x50/0x50 [ 385.408529] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 385.414060] ? check_preemption_disabled+0x48/0x280 [ 385.419079] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 385.423920] apic_timer_interrupt+0xf/0x20 [ 385.428147] [ 385.430383] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 385.435350] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 385.454253] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 385.461957] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 385.469223] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 385.476487] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 385.483746] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 385.491023] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 385.498319] skb_clone+0x1bb/0x500 [ 385.501855] ? skb_split+0x11e0/0x11e0 [ 385.505742] ? preempt_notifier_register+0x200/0x200 [ 385.510878] ? __switch_to_asm+0x34/0x70 [ 385.514962] ? __switch_to_asm+0x34/0x70 [ 385.519031] ? __switch_to_asm+0x40/0x70 [ 385.523098] ? __switch_to_asm+0x34/0x70 [ 385.527184] ? __switch_to_asm+0x40/0x70 [ 385.531274] ? __switch_to_asm+0x40/0x70 [ 385.535354] ? __switch_to_asm+0x34/0x70 [ 385.539439] ? __switch_to_asm+0x34/0x70 [ 385.543492] ? __switch_to_asm+0x40/0x70 [ 385.547557] ? __switch_to_asm+0x34/0x70 [ 385.551638] bpf_clone_redirect+0xb9/0x490 [ 385.555880] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 385.560894] ? __sched_text_start+0x8/0x8 [ 385.565055] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 385.569836] ? find_held_lock+0x36/0x1c0 [ 385.573904] ? lock_acquire+0x1ed/0x520 [ 385.577878] ? bpf_test_run+0x3ee/0x7a0 [ 385.581888] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 385.587431] ? check_preemption_disabled+0x48/0x280 [ 385.592467] ? kasan_check_read+0x11/0x20 [ 385.596614] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 385.601920] ? rcu_softirq_qs+0x20/0x20 [ 385.605894] ? preempt_schedule+0x4d/0x60 [ 385.610041] ? ___preempt_schedule+0x16/0x18 [ 385.614474] ? bpf_test_run+0x271/0x7a0 [ 385.618464] ? netlink_diag_dump+0x2a0/0x2a0 [ 385.622877] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 385.628416] ? bpf_test_init.isra.10+0x70/0x100 [ 385.633117] ? bpf_prog_test_run_skb+0x762/0xd60 [ 385.637890] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 385.642740] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 385.648277] ? fput+0x130/0x1a0 [ 385.651563] ? __bpf_prog_get+0x9b/0x290 [ 385.655629] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 385.660492] ? bpf_prog_test_run+0x130/0x1a0 [ 385.664903] ? __x64_sys_bpf+0x3d8/0x520 [ 385.668966] ? bpf_prog_get+0x20/0x20 [ 385.672788] ? do_syscall_64+0x1b9/0x820 [ 385.676883] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 385.682251] ? syscall_return_slowpath+0x5e0/0x5e0 [ 385.687193] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 385.692040] ? trace_hardirqs_on_caller+0x310/0x310 [ 385.697058] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 385.702077] ? prepare_exit_to_usermode+0x291/0x3b0 [ 385.707098] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 385.711976] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 385.717358] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 385.717468] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 385.724293] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 385.724298] Call Trace: [ 385.724305] [ 385.724322] dump_stack+0x244/0x39d [ 385.724342] ? dump_stack_print_info.cold.1+0x20/0x20 [ 385.730975] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 385.740194] warn_alloc.cold.116+0xb7/0x1bd [ 385.742748] syz-executor4 cpuset=syz4 mems_allowed=0 [ 385.744934] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 385.778427] ? lock_downgrade+0x900/0x900 [ 385.782582] ? trace_hardirqs_off+0xb8/0x310 [ 385.787013] ? trace_hardirqs_off+0xb8/0x310 [ 385.791430] __alloc_pages_slowpath+0x2651/0x2de0 [ 385.796308] ? warn_alloc+0x120/0x120 [ 385.800118] ? warn_alloc+0x120/0x120 [ 385.803947] ? __bfs+0x321/0x780 [ 385.807324] ? print_usage_bug+0xc0/0xc0 [ 385.811379] ? lockdep_on+0x50/0x50 [ 385.815002] ? print_bfs_bug+0x80/0x80 [ 385.818903] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 385.824439] ? should_fail+0x22d/0xd01 [ 385.828322] ? __bfs+0x321/0x780 [ 385.831691] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 385.836792] ? __lock_acquire+0x62f/0x4c20 [ 385.841030] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 385.846133] ? __lock_acquire+0x2aff/0x4c20 [ 385.850449] ? should_fail+0x22d/0xd01 [ 385.854349] ? mark_held_locks+0x130/0x130 [ 385.858585] ? mark_held_locks+0x130/0x130 [ 385.862822] ? kasan_check_read+0x11/0x20 [ 385.866970] ? __lock_acquire+0x2aff/0x4c20 [ 385.871288] ? zap_class+0x640/0x640 [ 385.875003] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 385.880544] ? check_preemption_disabled+0x48/0x280 [ 385.885565] ? __lock_is_held+0xb5/0x140 [ 385.889625] __alloc_pages_nodemask+0xad8/0xea0 [ 385.894290] ? zap_class+0x640/0x640 [ 385.898009] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 385.903037] ? find_held_lock+0x36/0x1c0 [ 385.907116] ? ____cache_alloc_node+0x1c7/0x1e0 [ 385.911804] ? lock_downgrade+0x900/0x900 [ 385.915955] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 385.921540] cache_grow_begin+0xa5/0x8c0 [ 385.925614] ? do_raw_spin_unlock+0xa7/0x330 [ 385.930031] fallback_alloc+0x204/0x2e0 [ 385.934011] ____cache_alloc_node+0x1c7/0x1e0 [ 385.938506] kmem_cache_alloc_node+0xe3/0x730 [ 385.943011] ? do_raw_spin_unlock+0xa7/0x330 [ 385.947415] ? do_raw_spin_trylock+0x270/0x270 [ 385.952045] __alloc_skb+0x119/0x770 [ 385.955763] ? netdev_alloc_frag+0x1f0/0x1f0 [ 385.960171] ? atomic_notifier_call_chain+0xc6/0x190 [ 385.965302] ? lock_downgrade+0x900/0x900 [ 385.969446] ? check_preemption_disabled+0x48/0x280 [ 385.974463] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 385.979383] ? kasan_check_read+0x11/0x20 [ 385.983524] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 385.988793] ? rcu_softirq_qs+0x20/0x20 [ 385.992785] ? kasan_check_read+0x11/0x20 [ 385.996932] ? do_raw_write_trylock+0x270/0x270 [ 386.001605] __neigh_notify+0x8c/0x160 [ 386.005510] ? neigh_connected_output+0x780/0x780 [ 386.010349] neigh_timer_handler+0x6cb/0xdf0 [ 386.014750] ? check_preemption_disabled+0x48/0x280 [ 386.019762] ? neigh_periodic_work+0xc60/0xc60 [ 386.024370] ? __lock_is_held+0xb5/0x140 [ 386.028472] call_timer_fn+0x272/0x920 [ 386.032428] ? neigh_periodic_work+0xc60/0xc60 [ 386.037025] ? process_timeout+0x40/0x40 [ 386.041089] ? mark_held_locks+0xc7/0x130 [ 386.045238] ? _raw_spin_unlock_irq+0x27/0x80 [ 386.049765] ? _raw_spin_unlock_irq+0x27/0x80 [ 386.054249] ? neigh_periodic_work+0xc60/0xc60 [ 386.058885] ? lockdep_hardirqs_on+0x296/0x5b0 [ 386.063489] ? trace_hardirqs_on+0xbd/0x310 [ 386.067830] ? kasan_check_read+0x11/0x20 [ 386.071981] ? __run_timers+0x7da/0xc70 [ 386.075976] ? trace_hardirqs_off_caller+0x310/0x310 [ 386.081120] ? neigh_periodic_work+0xc60/0xc60 [ 386.085717] __run_timers+0x7e5/0xc70 [ 386.089567] ? timer_fixup_init+0x70/0x70 [ 386.093781] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 386.098792] ? zap_class+0x640/0x640 [ 386.102690] ? print_usage_bug+0xc0/0xc0 [ 386.106751] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 386.111945] ? find_held_lock+0x36/0x1c0 [ 386.116044] ? zap_class+0x640/0x640 [ 386.119762] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 386.125293] ? check_preemption_disabled+0x48/0x280 [ 386.130313] ? __lock_is_held+0xb5/0x140 [ 386.134367] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 386.139904] ? check_preemption_disabled+0x48/0x280 [ 386.144917] run_timer_softirq+0x52/0xb0 [ 386.148970] ? rcu_read_lock_sched_held+0x14f/0x180 [ 386.153979] __do_softirq+0x308/0xb7e [ 386.157799] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 386.162285] ? lock_downgrade+0x900/0x900 [ 386.166433] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 386.171538] ? pvclock_read_flags+0x160/0x160 [ 386.176042] ? lapic_next_event+0x5a/0x90 [ 386.180185] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 386.185747] ? kvm_clock_read+0x18/0x30 [ 386.189755] ? kvm_sched_clock_read+0x9/0x20 [ 386.194181] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 386.199711] ? check_preemption_disabled+0x48/0x280 [ 386.204725] irq_exit+0x17f/0x1c0 [ 386.208187] smp_apic_timer_interrupt+0x1cb/0x760 [ 386.213019] ? smp_reschedule_interrupt+0x109/0x650 [ 386.218029] ? smp_call_function_single_interrupt+0x650/0x650 [ 386.223913] ? interrupt_entry+0xb5/0xc0 [ 386.227973] ? trace_hardirqs_off_caller+0xbb/0x310 [ 386.232979] ? trace_hardirqs_off_caller+0xbb/0x310 [ 386.237989] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 386.242828] ? trace_hardirqs_on_caller+0x310/0x310 [ 386.247836] ? trace_hardirqs_on_caller+0x310/0x310 [ 386.252844] ? task_prio+0x50/0x50 [ 386.256377] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 386.261911] ? check_preemption_disabled+0x48/0x280 [ 386.266926] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 386.271772] apic_timer_interrupt+0xf/0x20 [ 386.275997] [ 386.278231] RIP: 0010:lock_acquire+0x268/0x520 [ 386.282837] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 386.301732] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 386.309431] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 386.316695] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 386.323956] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 386.331217] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 386.338475] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 386.345755] ? lruvec_lru_size+0x450/0x450 [ 386.349984] ? kasan_check_read+0x11/0x20 [ 386.354134] ? lock_release+0xa00/0xa00 [ 386.358108] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 386.363081] down_read_trylock+0xda/0x140 [ 386.367239] ? shrink_slab+0x207/0x8c0 [ 386.371120] ? downgrade_write+0x270/0x270 [ 386.375362] shrink_slab+0x207/0x8c0 [ 386.379069] ? shrink_active_list+0x1f00/0x1f00 [ 386.383739] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 386.389357] ? __lock_acquire+0x62f/0x4c20 [ 386.393607] ? percpu_ref_get_many+0x240/0x240 [ 386.398195] ? print_usage_bug+0xc0/0xc0 [ 386.402257] shrink_node+0x431/0x16b0 [ 386.406063] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 386.411352] ? shrink_node_memcg+0x18f0/0x18f0 [ 386.415928] ? kvm_clock_read+0x18/0x30 [ 386.419899] ? ktime_get+0x2c1/0x400 [ 386.423612] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 386.428136] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 386.433696] ? __cpuset_node_allowed+0x19b/0x660 [ 386.438455] ? mark_held_locks+0x130/0x130 [ 386.442719] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 386.448456] ? zap_class+0x640/0x640 [ 386.452173] do_try_to_free_pages+0x3e7/0x1290 [ 386.456748] ? zap_class+0x640/0x640 [ 386.460474] ? shrink_node+0x16b0/0x16b0 [ 386.464531] ? __lock_is_held+0xb5/0x140 [ 386.468600] try_to_free_pages+0x4d0/0xb90 [ 386.472831] ? do_try_to_free_pages+0x1290/0x1290 [ 386.477691] ? lock_acquire+0x1ed/0x520 [ 386.481659] ? set_page_refcounted+0x280/0x280 [ 386.486272] ? lock_release+0xa00/0xa00 [ 386.490246] ? _raw_spin_unlock_irq+0x60/0x80 [ 386.494749] ? psi_memstall_enter+0x240/0x2b0 [ 386.499236] ? psi_memstall_tick+0x230/0x230 [ 386.503663] __alloc_pages_slowpath+0xa48/0x2de0 [ 386.508489] ? warn_alloc+0x120/0x120 [ 386.512286] ? mark_held_locks+0x130/0x130 [ 386.516524] ? find_get_entry+0xaae/0x1120 [ 386.520781] ? filemap_map_pages+0x1a20/0x1a20 [ 386.525386] ? zap_class+0x640/0x640 [ 386.529103] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 386.534655] ? check_preemption_disabled+0x48/0x280 [ 386.539669] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 386.545237] ? should_fail+0x22d/0xd01 [ 386.549134] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 386.554237] ? zap_class+0x640/0x640 [ 386.557968] ? __lock_is_held+0xb5/0x140 [ 386.562033] ? mark_held_locks+0x130/0x130 [ 386.566299] ? lock_release+0xa00/0xa00 [ 386.570275] ? perf_trace_sched_process_exec+0x860/0x860 [ 386.575721] ? xa_load+0x2ba/0x460 [ 386.579275] ? lock_downgrade+0x900/0x900 [ 386.583425] ? __might_sleep+0x95/0x190 [ 386.587401] __alloc_pages_nodemask+0xad8/0xea0 [ 386.592072] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 386.597081] ? __page_cache_alloc+0x191/0x5c0 [ 386.601612] ? xa_load+0x2e1/0x460 [ 386.605189] ? xa_clear_mark+0x40/0x40 [ 386.609074] ? zap_class+0x640/0x640 [ 386.612785] ? zap_class+0x640/0x640 [ 386.616505] ? zap_class+0x640/0x640 [ 386.620225] ? __do_page_cache_readahead+0x663/0x810 [ 386.625329] ? find_held_lock+0x36/0x1c0 [ 386.629404] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 386.634962] alloc_pages_current+0x173/0x350 [ 386.639372] __page_cache_alloc+0x38c/0x5c0 [ 386.643686] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 386.648606] ? kasan_check_read+0x11/0x20 [ 386.652765] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 386.658039] ? generic_perform_write+0x6a0/0x6a0 [ 386.662808] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 386.668341] ? check_preemption_disabled+0x48/0x280 [ 386.673363] filemap_fault+0x1595/0x25f0 [ 386.677438] ? __lock_page_or_retry+0xa00/0xa00 [ 386.682109] ? mark_held_locks+0x130/0x130 [ 386.686366] ? filemap_map_pages+0xd6b/0x1a20 [ 386.690889] ? lock_downgrade+0x900/0x900 [ 386.695059] ? check_preemption_disabled+0x48/0x280 [ 386.700080] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 386.705023] ? kasan_check_read+0x11/0x20 [ 386.709167] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 386.714442] ? rcu_softirq_qs+0x20/0x20 [ 386.718426] ? filemap_map_pages+0xd92/0x1a20 [ 386.722936] ? find_get_entries_tag+0x1400/0x1400 [ 386.727779] ? debug_object_destroy+0x2b0/0x2b0 [ 386.732465] ? lock_pi_update_atomic+0x150/0x150 [ 386.737216] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 386.742759] ? lock_acquire+0x1ed/0x520 [ 386.746730] ? ext4_filemap_fault+0x7a/0xad [ 386.751054] ? lock_release+0xa00/0xa00 [ 386.755022] ? perf_trace_sched_process_exec+0x860/0x860 [ 386.760471] ? print_usage_bug+0xc0/0xc0 [ 386.764545] ? print_usage_bug+0xc0/0xc0 [ 386.768629] ? down_read+0x8d/0x120 [ 386.772253] ? ext4_filemap_fault+0x7a/0xad [ 386.776600] ? __down_interruptible+0x700/0x700 [ 386.781316] ext4_filemap_fault+0x82/0xad [ 386.785461] __do_fault+0x100/0x6b0 [ 386.789103] ? find_held_lock+0x36/0x1c0 [ 386.793203] ? pmd_devmap_trans_unstable+0x220/0x220 [ 386.798303] ? mark_held_locks+0x130/0x130 [ 386.802548] ? mark_held_locks+0x130/0x130 [ 386.806785] ? kasan_check_read+0x11/0x20 [ 386.810928] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 386.816460] __handle_mm_fault+0x3ea0/0x5be0 [ 386.820887] ? perf_trace_lock+0x7a0/0x7a0 [ 386.825175] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 386.830058] ? __switch_to_asm+0x34/0x70 [ 386.834115] ? __switch_to_asm+0x34/0x70 [ 386.838194] ? zap_class+0x640/0x640 [ 386.841906] ? zap_class+0x640/0x640 [ 386.845621] ? __x64_sys_futex+0x53e/0x6a0 [ 386.849853] ? find_held_lock+0x36/0x1c0 [ 386.853917] ? handle_mm_fault+0x42a/0xc70 [ 386.858150] ? lock_downgrade+0x900/0x900 [ 386.862341] ? check_preemption_disabled+0x48/0x280 [ 386.867358] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 386.872304] ? kasan_check_read+0x11/0x20 [ 386.876448] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 386.881760] ? rcu_softirq_qs+0x20/0x20 [ 386.885766] ? trace_hardirqs_off_caller+0x310/0x310 [ 386.890870] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 386.896407] ? sync_mm_rss+0x9a/0x1c0 [ 386.900239] handle_mm_fault+0x54f/0xc70 [ 386.904298] ? __handle_mm_fault+0x5be0/0x5be0 [ 386.908899] ? find_vma+0x34/0x190 [ 386.912448] __do_page_fault+0x5e8/0xe60 [ 386.916521] ? trace_hardirqs_off+0xb8/0x310 [ 386.920949] do_page_fault+0xf2/0x7e0 [ 386.924759] ? vmalloc_sync_all+0x30/0x30 [ 386.928928] ? error_entry+0x70/0xd0 [ 386.932645] ? trace_hardirqs_off_caller+0xbb/0x310 [ 386.937658] ? trace_hardirqs_on_caller+0xc0/0x310 [ 386.942604] ? syscall_return_slowpath+0x5e0/0x5e0 [ 386.947529] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 386.952545] ? trace_hardirqs_on_caller+0x310/0x310 [ 386.957564] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 386.963022] ? prepare_exit_to_usermode+0x291/0x3b0 [ 386.968035] ? page_fault+0x8/0x30 [ 386.971593] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 386.976449] ? page_fault+0x8/0x30 [ 386.980020] page_fault+0x1e/0x30 [ 386.983471] RIP: 0033:0x45ddf3 [ 386.986698] Code: Bad RIP value. [ 386.990067] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 386.995449] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 387.002782] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 387.010042] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 387.017306] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 387.024565] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 387.031851] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 387.031856] warn_alloc_show_mem: 1 callbacks suppressed [ 387.031863] Mem-Info: [ 387.039137] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 387.044501] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 387.044501] active_file:17 inactive_file:17 isolated_file:0 [ 387.044501] unevictable:0 dirty:4 writeback:0 unstable:0 [ 387.044501] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 387.044501] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 387.044501] free:13550 free_pcp:124 free_cma:0 [ 387.046868] Call Trace: [ 387.056329] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 387.089493] [ 387.092096] 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 [ 387.119871] dump_stack+0x244/0x39d [ 387.121993] lowmem_reserve[]: 0 2818 6321 6321 [ 387.148088] ? dump_stack_print_info.cold.1+0x20/0x20 [ 387.151703] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 387.156294] warn_alloc.cold.116+0xb7/0x1bd [ 387.161466] lowmem_reserve[]: 0 0 3503 3503 [ 387.188808] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 387.193105] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 387.197425] ? lock_downgrade+0x900/0x900 [ 387.202241] lowmem_reserve[]: 0 0 0 0 [ 387.231136] ? trace_hardirqs_off+0xb8/0x310 [ 387.235250] 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 [ 387.239064] ? trace_hardirqs_off+0xb8/0x310 [ 387.243458] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 387.256992] __alloc_pages_slowpath+0x2651/0x2de0 [ 387.261369] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 387.276136] ? warn_alloc+0x120/0x120 [ 387.280934] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 387.295670] ? nohz_balance_enter_idle+0x6c0/0x6c0 [ 387.299462] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 387.308293] ? warn_alloc+0x120/0x120 [ 387.313194] 1360 total pagecache pages [ 387.321766] ? warn_alloc+0x120/0x120 [ 387.325542] 0 pages in swap cache [ 387.329410] ? print_usage_bug+0xc0/0xc0 [ 387.333181] Swap cache stats: add 0, delete 0, find 0/0 [ 387.336620] ? print_usage_bug+0xc0/0xc0 [ 387.340651] Free swap = 0kB [ 387.346005] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 387.350031] Total swap = 0kB [ 387.353037] ? should_fail+0x22d/0xd01 [ 387.358542] 1965979 pages RAM [ 387.361548] ? __lock_acquire+0x62f/0x4c20 [ 387.365398] 0 pages HighMem/MovableOnly [ 387.365406] 342854 pages reserved [ 387.368542] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 387.372778] 0 pages cma reserved [ 387.376739] ? __lock_acquire+0x62f/0x4c20 [ 387.380409] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 387.385270] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 387.388611] syz-fuzzer cpuset=/ mems_allowed=0 [ 387.392856] ? __lock_acquire+0x62f/0x4c20 [ 387.392886] ? should_fail+0x22d/0xd01 [ 387.420911] ? mark_held_locks+0x130/0x130 [ 387.425161] ? mark_held_locks+0x130/0x130 [ 387.429433] ? zap_class+0x640/0x640 [ 387.433144] ? print_usage_bug+0xc0/0xc0 [ 387.437210] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 387.442741] ? check_preemption_disabled+0x48/0x280 [ 387.447765] ? __lock_is_held+0xb5/0x140 [ 387.451840] __alloc_pages_nodemask+0xad8/0xea0 [ 387.456509] ? zap_class+0x640/0x640 [ 387.460227] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 387.465253] ? find_held_lock+0x36/0x1c0 [ 387.469329] ? ____cache_alloc_node+0x1c7/0x1e0 [ 387.474021] ? lock_downgrade+0x900/0x900 [ 387.478179] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 387.483736] cache_grow_begin+0xa5/0x8c0 [ 387.487798] ? do_raw_spin_unlock+0xa7/0x330 [ 387.492214] fallback_alloc+0x204/0x2e0 [ 387.496194] ____cache_alloc_node+0x1c7/0x1e0 [ 387.500712] kmem_cache_alloc_node+0xe3/0x730 [ 387.505206] ? ipv6_get_ifaddr+0x42e/0x620 [ 387.509454] __alloc_skb+0x119/0x770 [ 387.513166] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 387.518445] ? netdev_alloc_frag+0x1f0/0x1f0 [ 387.522863] ? lock_downgrade+0x900/0x900 [ 387.527026] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 387.532563] ? refcount_sub_and_test_checked+0x203/0x310 [ 387.538015] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 387.543476] ? addrconf_rs_timer+0x690/0x690 [ 387.547893] ndisc_alloc_skb+0x144/0x340 [ 387.551972] ndisc_send_rs+0x331/0x6e0 [ 387.555866] addrconf_rs_timer+0x314/0x690 [ 387.560098] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 387.564358] call_timer_fn+0x272/0x920 [ 387.568244] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 387.572481] ? process_timeout+0x40/0x40 [ 387.576549] ? __run_timers+0x7da/0xc70 [ 387.580523] ? _raw_spin_unlock_irq+0x27/0x80 [ 387.585014] ? _raw_spin_unlock_irq+0x27/0x80 [ 387.589507] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 387.593749] ? lockdep_hardirqs_on+0x296/0x5b0 [ 387.598335] ? trace_hardirqs_on+0xbd/0x310 [ 387.602658] ? kasan_check_read+0x11/0x20 [ 387.606802] ? __run_timers+0x7da/0xc70 [ 387.610791] ? trace_hardirqs_off_caller+0x310/0x310 [ 387.615915] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 387.620151] __run_timers+0x7e5/0xc70 [ 387.623963] ? timer_fixup_init+0x70/0x70 [ 387.628109] ? kasan_check_read+0x11/0x20 [ 387.632260] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 387.637535] ? rcu_softirq_qs+0x20/0x20 [ 387.641507] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 387.647043] ? check_preemption_disabled+0x48/0x280 [ 387.652063] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 387.656818] ? retint_kernel+0x2d/0x2d [ 387.660703] ? trace_hardirqs_on_caller+0xc0/0x310 [ 387.665631] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 387.670388] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 387.675848] ? zap_class+0x640/0x640 [ 387.679565] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 387.685099] ? check_preemption_disabled+0x48/0x280 [ 387.690139] ? __lock_is_held+0xb5/0x140 [ 387.694204] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 387.699753] ? check_preemption_disabled+0x48/0x280 [ 387.704783] run_timer_softirq+0x52/0xb0 [ 387.708862] ? rcu_read_lock_sched_held+0x14f/0x180 [ 387.713879] __do_softirq+0x308/0xb7e [ 387.717695] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 387.722188] ? lock_downgrade+0x900/0x900 [ 387.726340] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 387.731470] ? pvclock_read_flags+0x160/0x160 [ 387.735970] ? lapic_next_event+0x5a/0x90 [ 387.740121] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 387.745687] ? kvm_clock_read+0x18/0x30 [ 387.749657] ? kvm_sched_clock_read+0x9/0x20 [ 387.754064] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 387.759598] ? check_preemption_disabled+0x48/0x280 [ 387.764635] irq_exit+0x17f/0x1c0 [ 387.768100] smp_apic_timer_interrupt+0x1cb/0x760 [ 387.772944] ? smp_reschedule_interrupt+0x109/0x650 [ 387.777957] ? smp_call_function_single_interrupt+0x650/0x650 [ 387.783832] ? interrupt_entry+0xb5/0xc0 [ 387.787896] ? trace_hardirqs_off_caller+0xbb/0x310 [ 387.792918] ? trace_hardirqs_off_caller+0xbb/0x310 [ 387.797927] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 387.802765] ? trace_hardirqs_on_caller+0x310/0x310 [ 387.807776] ? trace_hardirqs_on_caller+0x310/0x310 [ 387.812803] ? task_prio+0x50/0x50 [ 387.816342] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 387.821875] ? check_preemption_disabled+0x48/0x280 [ 387.826918] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 387.831766] apic_timer_interrupt+0xf/0x20 [ 387.835987] [ 387.838226] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 387.843168] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 387.862060] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 387.869781] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 387.877045] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 387.884308] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 387.891570] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 387.898848] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 387.906157] skb_clone+0x1bb/0x500 [ 387.909699] ? skb_split+0x11e0/0x11e0 [ 387.913588] ? preempt_notifier_register+0x200/0x200 [ 387.918690] ? __switch_to_asm+0x34/0x70 [ 387.922749] ? __switch_to_asm+0x34/0x70 [ 387.926813] ? __switch_to_asm+0x40/0x70 [ 387.930871] ? __switch_to_asm+0x34/0x70 [ 387.934931] ? __switch_to_asm+0x40/0x70 [ 387.938990] ? __switch_to_asm+0x40/0x70 [ 387.943046] ? __switch_to_asm+0x34/0x70 [ 387.947107] ? __switch_to_asm+0x34/0x70 [ 387.951175] ? __switch_to_asm+0x40/0x70 [ 387.955231] ? __switch_to_asm+0x34/0x70 [ 387.959294] bpf_clone_redirect+0xb9/0x490 [ 387.963532] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 387.968550] ? __sched_text_start+0x8/0x8 [ 387.972697] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 387.977469] ? find_held_lock+0x36/0x1c0 [ 387.981535] ? lock_acquire+0x1ed/0x520 [ 387.985539] ? bpf_test_run+0x3ee/0x7a0 [ 387.989514] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 387.995047] ? check_preemption_disabled+0x48/0x280 [ 388.000080] ? kasan_check_read+0x11/0x20 [ 388.004238] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 388.009510] ? rcu_softirq_qs+0x20/0x20 [ 388.013528] ? preempt_schedule+0x4d/0x60 [ 388.017693] ? ___preempt_schedule+0x16/0x18 [ 388.022105] ? bpf_test_run+0x271/0x7a0 [ 388.026099] ? netlink_diag_dump+0x2a0/0x2a0 [ 388.030550] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 388.036095] ? bpf_test_init.isra.10+0x70/0x100 [ 388.040775] ? bpf_prog_test_run_skb+0x762/0xd60 [ 388.045541] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 388.050387] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 388.055928] ? fput+0x130/0x1a0 [ 388.059213] ? __bpf_prog_get+0x9b/0x290 [ 388.063282] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 388.068120] ? bpf_prog_test_run+0x130/0x1a0 [ 388.072534] ? __x64_sys_bpf+0x3d8/0x520 [ 388.076591] ? bpf_prog_get+0x20/0x20 [ 388.080474] ? do_syscall_64+0x1b9/0x820 [ 388.084541] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 388.089920] ? syscall_return_slowpath+0x5e0/0x5e0 [ 388.094863] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 388.099705] ? trace_hardirqs_on_caller+0x310/0x310 [ 388.104719] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 388.109764] ? prepare_exit_to_usermode+0x291/0x3b0 [ 388.114779] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 388.119622] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 388.125002] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 388.125088] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 388.131920] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 388.131925] Call Trace: [ 388.131930] [ 388.131944] dump_stack+0x244/0x39d [ 388.131964] ? dump_stack_print_info.cold.1+0x20/0x20 [ 388.138507] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 388.147848] warn_alloc.cold.116+0xb7/0x1bd [ 388.150402] syz-executor4 cpuset=syz4 mems_allowed=0 [ 388.152542] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 388.186028] ? lock_downgrade+0x900/0x900 [ 388.190183] ? trace_hardirqs_off+0xb8/0x310 [ 388.194609] ? trace_hardirqs_off+0xb8/0x310 [ 388.199036] __alloc_pages_slowpath+0x2651/0x2de0 [ 388.203906] ? warn_alloc+0x120/0x120 [ 388.207744] ? warn_alloc+0x120/0x120 [ 388.211549] ? warn_alloc+0x120/0x120 [ 388.215362] ? print_usage_bug+0xc0/0xc0 [ 388.219435] ? enqueue_hrtimer+0x1a5/0x560 [ 388.223684] ? print_usage_bug+0xc0/0xc0 [ 388.227742] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 388.232950] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 388.238498] ? should_fail+0x22d/0xd01 [ 388.242390] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 388.247493] ? __lock_acquire+0x62f/0x4c20 [ 388.251730] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 388.256854] ? __lock_acquire+0x62f/0x4c20 [ 388.261085] ? should_fail+0x22d/0xd01 [ 388.264989] ? mark_held_locks+0x130/0x130 [ 388.269238] ? mark_held_locks+0x130/0x130 [ 388.273492] ? zap_class+0x640/0x640 [ 388.277202] ? print_usage_bug+0xc0/0xc0 [ 388.281272] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 388.286831] ? check_preemption_disabled+0x48/0x280 [ 388.291854] ? __lock_is_held+0xb5/0x140 [ 388.295921] __alloc_pages_nodemask+0xad8/0xea0 [ 388.300605] ? zap_class+0x640/0x640 [ 388.304322] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 388.309340] ? find_held_lock+0x36/0x1c0 [ 388.313428] ? ____cache_alloc_node+0x1c7/0x1e0 [ 388.318135] ? lock_downgrade+0x900/0x900 [ 388.322287] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 388.327834] cache_grow_begin+0xa5/0x8c0 [ 388.331893] ? do_raw_spin_unlock+0xa7/0x330 [ 388.336329] fallback_alloc+0x204/0x2e0 [ 388.340307] ____cache_alloc_node+0x1c7/0x1e0 [ 388.344835] kmem_cache_alloc_node+0xe3/0x730 [ 388.349338] ? ipv6_get_ifaddr+0x42e/0x620 [ 388.353574] __alloc_skb+0x119/0x770 [ 388.357280] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 388.362569] ? netdev_alloc_frag+0x1f0/0x1f0 [ 388.366968] ? lock_downgrade+0x900/0x900 [ 388.371130] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 388.376659] ? refcount_sub_and_test_checked+0x203/0x310 [ 388.382100] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 388.387546] ? addrconf_rs_timer+0x690/0x690 [ 388.391994] ndisc_alloc_skb+0x144/0x340 [ 388.396053] ndisc_send_rs+0x331/0x6e0 [ 388.399960] addrconf_rs_timer+0x314/0x690 [ 388.404211] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 388.408477] call_timer_fn+0x272/0x920 [ 388.412380] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 388.416653] ? process_timeout+0x40/0x40 [ 388.420744] ? mark_held_locks+0xc7/0x130 [ 388.424886] ? _raw_spin_unlock_irq+0x27/0x80 [ 388.429379] ? _raw_spin_unlock_irq+0x27/0x80 [ 388.433869] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 388.438104] ? lockdep_hardirqs_on+0x296/0x5b0 [ 388.442688] ? trace_hardirqs_on+0xbd/0x310 [ 388.447006] ? kasan_check_read+0x11/0x20 [ 388.451152] ? __run_timers+0x7da/0xc70 [ 388.455146] ? trace_hardirqs_off_caller+0x310/0x310 [ 388.460275] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 388.464502] __run_timers+0x7e5/0xc70 [ 388.468315] ? timer_fixup_init+0x70/0x70 [ 388.472458] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 388.477477] ? zap_class+0x640/0x640 [ 388.481190] ? print_usage_bug+0xc0/0xc0 [ 388.485249] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 388.490440] ? find_held_lock+0x36/0x1c0 [ 388.494517] ? zap_class+0x640/0x640 [ 388.498234] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 388.503771] ? check_preemption_disabled+0x48/0x280 [ 388.508795] ? __lock_is_held+0xb5/0x140 [ 388.512855] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 388.518389] ? check_preemption_disabled+0x48/0x280 [ 388.523407] run_timer_softirq+0x52/0xb0 [ 388.527478] ? rcu_read_lock_sched_held+0x14f/0x180 [ 388.532505] __do_softirq+0x308/0xb7e [ 388.536305] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 388.540791] ? lock_downgrade+0x900/0x900 [ 388.544940] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 388.550045] ? pvclock_read_flags+0x160/0x160 [ 388.554541] ? lapic_next_event+0x5a/0x90 [ 388.558688] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 388.564242] ? kvm_clock_read+0x18/0x30 [ 388.568213] ? kvm_sched_clock_read+0x9/0x20 [ 388.572630] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 388.578196] ? check_preemption_disabled+0x48/0x280 [ 388.583216] irq_exit+0x17f/0x1c0 [ 388.586663] smp_apic_timer_interrupt+0x1cb/0x760 [ 388.591532] ? smp_reschedule_interrupt+0x109/0x650 [ 388.596556] ? smp_call_function_single_interrupt+0x650/0x650 [ 388.602498] ? interrupt_entry+0xb5/0xc0 [ 388.606584] ? trace_hardirqs_off_caller+0xbb/0x310 [ 388.611598] ? trace_hardirqs_off_caller+0xbb/0x310 [ 388.616643] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 388.621501] ? trace_hardirqs_on_caller+0x310/0x310 [ 388.626513] ? trace_hardirqs_on_caller+0x310/0x310 [ 388.631573] ? task_prio+0x50/0x50 [ 388.635109] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 388.640650] ? check_preemption_disabled+0x48/0x280 [ 388.645667] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 388.650531] apic_timer_interrupt+0xf/0x20 [ 388.654773] [ 388.657006] RIP: 0010:lock_acquire+0x268/0x520 [ 388.661585] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 388.680482] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 388.688202] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 388.695482] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 388.702752] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 388.710024] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 388.717288] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 388.724575] ? lruvec_lru_size+0x450/0x450 [ 388.728805] ? kasan_check_read+0x11/0x20 [ 388.732948] ? lock_release+0xa00/0xa00 [ 388.736924] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 388.741862] down_read_trylock+0xda/0x140 [ 388.746002] ? shrink_slab+0x207/0x8c0 [ 388.749883] ? downgrade_write+0x270/0x270 [ 388.754133] shrink_slab+0x207/0x8c0 [ 388.757844] ? shrink_active_list+0x1f00/0x1f00 [ 388.762528] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 388.768168] ? __lock_acquire+0x62f/0x4c20 [ 388.772405] ? percpu_ref_get_many+0x240/0x240 [ 388.776997] ? print_usage_bug+0xc0/0xc0 [ 388.781060] shrink_node+0x431/0x16b0 [ 388.784853] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 388.790199] ? shrink_node_memcg+0x18f0/0x18f0 [ 388.794778] ? kvm_clock_read+0x18/0x30 [ 388.798756] ? ktime_get+0x2c1/0x400 [ 388.802470] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 388.806978] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 388.812523] ? __cpuset_node_allowed+0x19b/0x660 [ 388.817275] ? mark_held_locks+0x130/0x130 [ 388.821542] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 388.827251] ? zap_class+0x640/0x640 [ 388.830966] do_try_to_free_pages+0x3e7/0x1290 [ 388.835538] ? zap_class+0x640/0x640 [ 388.839264] ? shrink_node+0x16b0/0x16b0 [ 388.843321] ? __lock_is_held+0xb5/0x140 [ 388.847388] try_to_free_pages+0x4d0/0xb90 [ 388.851638] ? do_try_to_free_pages+0x1290/0x1290 [ 388.856487] ? lock_acquire+0x1ed/0x520 [ 388.860487] ? set_page_refcounted+0x280/0x280 [ 388.865069] ? lock_release+0xa00/0xa00 [ 388.869041] ? _raw_spin_unlock_irq+0x60/0x80 [ 388.873530] ? psi_memstall_enter+0x240/0x2b0 [ 388.878023] ? psi_memstall_tick+0x230/0x230 [ 388.882444] __alloc_pages_slowpath+0xa48/0x2de0 [ 388.887249] ? warn_alloc+0x120/0x120 [ 388.891044] ? mark_held_locks+0x130/0x130 [ 388.895290] ? find_get_entry+0xaae/0x1120 [ 388.899542] ? filemap_map_pages+0x1a20/0x1a20 [ 388.904141] ? zap_class+0x640/0x640 [ 388.907863] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 388.913396] ? check_preemption_disabled+0x48/0x280 [ 388.918406] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 388.923945] ? should_fail+0x22d/0xd01 [ 388.927835] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 388.932958] ? zap_class+0x640/0x640 [ 388.936740] ? __lock_is_held+0xb5/0x140 [ 388.940806] ? mark_held_locks+0x130/0x130 [ 388.945044] ? lock_release+0xa00/0xa00 [ 388.949157] ? perf_trace_sched_process_exec+0x860/0x860 [ 388.954607] ? xa_load+0x2ba/0x460 [ 388.958153] ? lock_downgrade+0x900/0x900 [ 388.962306] ? __might_sleep+0x95/0x190 [ 388.966287] __alloc_pages_nodemask+0xad8/0xea0 [ 388.970965] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 388.975985] ? __page_cache_alloc+0x191/0x5c0 [ 388.980476] ? xa_load+0x2e1/0x460 [ 388.984030] ? xa_clear_mark+0x40/0x40 [ 388.987919] ? zap_class+0x640/0x640 [ 388.991636] ? zap_class+0x640/0x640 [ 388.995348] ? zap_class+0x640/0x640 [ 388.999059] ? __do_page_cache_readahead+0x663/0x810 [ 389.004162] ? find_held_lock+0x36/0x1c0 [ 389.008224] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 389.013775] alloc_pages_current+0x173/0x350 [ 389.018226] __page_cache_alloc+0x38c/0x5c0 [ 389.022537] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 389.027462] ? kasan_check_read+0x11/0x20 [ 389.031599] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 389.036885] ? generic_perform_write+0x6a0/0x6a0 [ 389.041652] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 389.047179] ? check_preemption_disabled+0x48/0x280 [ 389.052241] filemap_fault+0x1595/0x25f0 [ 389.056339] ? __lock_page_or_retry+0xa00/0xa00 [ 389.061018] ? mark_held_locks+0x130/0x130 [ 389.065284] ? filemap_map_pages+0xd6b/0x1a20 [ 389.069802] ? lock_downgrade+0x900/0x900 [ 389.073940] ? check_preemption_disabled+0x48/0x280 [ 389.078957] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 389.084423] ? kasan_check_read+0x11/0x20 [ 389.088566] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 389.093832] ? rcu_softirq_qs+0x20/0x20 [ 389.097853] ? filemap_map_pages+0xd92/0x1a20 [ 389.102351] ? find_get_entries_tag+0x1400/0x1400 [ 389.107203] ? debug_object_destroy+0x2b0/0x2b0 [ 389.111884] ? lock_pi_update_atomic+0x150/0x150 [ 389.116635] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 389.122195] ? lock_acquire+0x1ed/0x520 [ 389.126183] ? ext4_filemap_fault+0x7a/0xad [ 389.130547] ? lock_release+0xa00/0xa00 [ 389.134509] ? perf_trace_sched_process_exec+0x860/0x860 [ 389.139952] ? print_usage_bug+0xc0/0xc0 [ 389.144028] ? print_usage_bug+0xc0/0xc0 [ 389.148107] ? down_read+0x8d/0x120 [ 389.151744] ? ext4_filemap_fault+0x7a/0xad [ 389.156073] ? __down_interruptible+0x700/0x700 [ 389.160769] ext4_filemap_fault+0x82/0xad [ 389.164928] __do_fault+0x100/0x6b0 [ 389.168592] ? find_held_lock+0x36/0x1c0 [ 389.172664] ? pmd_devmap_trans_unstable+0x220/0x220 [ 389.177762] ? mark_held_locks+0x130/0x130 [ 389.181991] ? mark_held_locks+0x130/0x130 [ 389.186227] ? kasan_check_read+0x11/0x20 [ 389.190386] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 389.195922] __handle_mm_fault+0x3ea0/0x5be0 [ 389.200330] ? perf_trace_lock+0x7a0/0x7a0 [ 389.204567] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 389.209434] ? __switch_to_asm+0x34/0x70 [ 389.213504] ? __switch_to_asm+0x34/0x70 [ 389.217586] ? zap_class+0x640/0x640 [ 389.221291] ? zap_class+0x640/0x640 [ 389.224995] ? __x64_sys_futex+0x53e/0x6a0 [ 389.229240] ? find_held_lock+0x36/0x1c0 [ 389.233313] ? handle_mm_fault+0x42a/0xc70 [ 389.237573] ? lock_downgrade+0x900/0x900 [ 389.241762] ? check_preemption_disabled+0x48/0x280 [ 389.246790] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 389.251709] ? kasan_check_read+0x11/0x20 [ 389.255868] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 389.261152] ? rcu_softirq_qs+0x20/0x20 [ 389.265122] ? trace_hardirqs_off_caller+0x310/0x310 [ 389.270260] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 389.275790] ? sync_mm_rss+0x9a/0x1c0 [ 389.279631] handle_mm_fault+0x54f/0xc70 [ 389.283715] ? __handle_mm_fault+0x5be0/0x5be0 [ 389.288311] ? find_vma+0x34/0x190 [ 389.291852] __do_page_fault+0x5e8/0xe60 [ 389.295909] ? trace_hardirqs_off+0xb8/0x310 [ 389.300359] do_page_fault+0xf2/0x7e0 [ 389.304181] ? vmalloc_sync_all+0x30/0x30 [ 389.308320] ? error_entry+0x70/0xd0 [ 389.312027] ? trace_hardirqs_off_caller+0xbb/0x310 [ 389.317033] ? trace_hardirqs_on_caller+0xc0/0x310 [ 389.321955] ? syscall_return_slowpath+0x5e0/0x5e0 [ 389.326879] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 389.331721] ? trace_hardirqs_on_caller+0x310/0x310 [ 389.336733] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 389.342180] ? prepare_exit_to_usermode+0x291/0x3b0 [ 389.347187] ? page_fault+0x8/0x30 [ 389.350722] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 389.355560] ? page_fault+0x8/0x30 [ 389.359095] page_fault+0x1e/0x30 [ 389.362541] RIP: 0033:0x45ddf3 [ 389.365734] Code: Bad RIP value. [ 389.369084] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 389.374448] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 389.381703] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 389.388977] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 389.396261] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 389.403535] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 389.410844] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 389.410848] warn_alloc_show_mem: 1 callbacks suppressed [ 389.410854] Mem-Info: [ 389.418138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 389.423511] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 389.423511] active_file:17 inactive_file:17 isolated_file:0 [ 389.423511] unevictable:0 dirty:4 writeback:0 unstable:0 [ 389.423511] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 389.423511] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 389.423511] free:13550 free_pcp:124 free_cma:0 [ 389.425890] Call Trace: [ 389.435439] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 389.468484] [ 389.471068] 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 [ 389.498921] dump_stack+0x244/0x39d [ 389.501043] lowmem_reserve[]: 0 2818 6321 6321 [ 389.527150] ? dump_stack_print_info.cold.1+0x20/0x20 [ 389.530765] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 389.535344] warn_alloc.cold.116+0xb7/0x1bd [ 389.540548] lowmem_reserve[]: 0 0 3503 3503 [ 389.567861] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 389.572156] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 389.576481] ? lock_downgrade+0x900/0x900 [ 389.581299] lowmem_reserve[]: 0 0 0 0 [ 389.610185] ? trace_hardirqs_off+0xb8/0x310 [ 389.614307] 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 [ 389.618100] ? trace_hardirqs_off+0xb8/0x310 [ 389.622479] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 389.635996] __alloc_pages_slowpath+0x2651/0x2de0 [ 389.640378] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 389.655136] ? warn_alloc+0x120/0x120 [ 389.659939] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 389.674679] ? print_usage_bug+0xc0/0xc0 [ 389.678460] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 389.687285] ? warn_alloc+0x120/0x120 [ 389.691320] 1360 total pagecache pages [ 389.699884] ? warn_alloc+0x120/0x120 [ 389.703676] 0 pages in swap cache [ 389.707550] ? print_usage_bug+0xc0/0xc0 [ 389.711329] Swap cache stats: add 0, delete 0, find 0/0 [ 389.714796] ? print_usage_bug+0xc0/0xc0 [ 389.718831] Free swap = 0kB [ 389.724189] ? __lock_acquire+0x62f/0x4c20 [ 389.728240] Total swap = 0kB [ 389.731250] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 389.735466] 1965979 pages RAM [ 389.738499] ? should_fail+0x22d/0xd01 [ 389.744007] 0 pages HighMem/MovableOnly [ 389.747122] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 389.750988] 342854 pages reserved [ 389.754951] ? __lock_acquire+0x62f/0x4c20 [ 389.760042] 0 pages cma reserved [ 389.763483] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 389.767756] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 389.771031] ? __lock_acquire+0x62f/0x4c20 [ 389.771042] ? should_fail+0x22d/0xd01 [ 389.771053] ? find_held_lock+0x36/0x1c0 [ 389.771070] ? mark_held_locks+0x130/0x130 [ 389.776206] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 389.782624] ? mark_held_locks+0x130/0x130 [ 389.786847] syz-fuzzer cpuset=/ mems_allowed=0 [ 389.790722] ? zap_class+0x640/0x640 [ 389.821712] ? zap_class+0x640/0x640 [ 389.825429] ? print_usage_bug+0xc0/0xc0 [ 389.829504] ? do_raw_spin_unlock+0xa7/0x330 [ 389.833918] ? zap_class+0x640/0x640 [ 389.837641] ? print_usage_bug+0xc0/0xc0 [ 389.841693] ? wq_watchdog_touch+0x9c/0xfe [ 389.845920] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 389.851452] ? check_preemption_disabled+0x48/0x280 [ 389.856469] ? __lock_is_held+0xb5/0x140 [ 389.860532] __alloc_pages_nodemask+0xad8/0xea0 [ 389.865301] ? zap_class+0x640/0x640 [ 389.869049] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 389.874090] ? find_held_lock+0x36/0x1c0 [ 389.878168] ? ____cache_alloc_node+0x1c7/0x1e0 [ 389.882837] ? lock_downgrade+0x900/0x900 [ 389.886989] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 389.892530] cache_grow_begin+0xa5/0x8c0 [ 389.896590] ? do_raw_spin_unlock+0xa7/0x330 [ 389.901010] fallback_alloc+0x204/0x2e0 [ 389.905003] ____cache_alloc_node+0x1c7/0x1e0 [ 389.909501] kmem_cache_alloc_node+0xe3/0x730 [ 389.914016] ? ipv6_get_ifaddr+0x42e/0x620 [ 389.918263] __alloc_skb+0x119/0x770 [ 389.921974] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 389.927257] ? netdev_alloc_frag+0x1f0/0x1f0 [ 389.931667] ? lock_downgrade+0x900/0x900 [ 389.935820] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 389.941358] ? refcount_sub_and_test_checked+0x203/0x310 [ 389.946815] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 389.952268] ? addrconf_rs_timer+0x690/0x690 [ 389.956689] ndisc_alloc_skb+0x144/0x340 [ 389.960771] ndisc_send_rs+0x331/0x6e0 [ 389.964677] addrconf_rs_timer+0x314/0x690 [ 389.968928] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 389.973172] call_timer_fn+0x272/0x920 [ 389.977055] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 389.981285] ? process_timeout+0x40/0x40 [ 389.985350] ? __run_timers+0x7da/0xc70 [ 389.989322] ? _raw_spin_unlock_irq+0x27/0x80 [ 389.993834] ? _raw_spin_unlock_irq+0x27/0x80 [ 389.998325] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 390.002558] ? lockdep_hardirqs_on+0x296/0x5b0 [ 390.007147] ? trace_hardirqs_on+0xbd/0x310 [ 390.011467] ? kasan_check_read+0x11/0x20 [ 390.015606] ? __run_timers+0x7da/0xc70 [ 390.019584] ? trace_hardirqs_off_caller+0x310/0x310 [ 390.024688] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 390.028926] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 390.033162] __run_timers+0x7e5/0xc70 [ 390.036970] ? timer_fixup_init+0x70/0x70 [ 390.041114] ? kasan_check_read+0x11/0x20 [ 390.045259] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 390.050528] ? rcu_softirq_qs+0x20/0x20 [ 390.054500] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 390.060033] ? check_preemption_disabled+0x48/0x280 [ 390.065085] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 390.069877] ? retint_kernel+0x2d/0x2d [ 390.073816] ? trace_hardirqs_on_caller+0xc0/0x310 [ 390.078757] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 390.083509] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 390.088957] ? zap_class+0x640/0x640 [ 390.092667] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 390.098222] ? check_preemption_disabled+0x48/0x280 [ 390.103278] ? __lock_is_held+0xb5/0x140 [ 390.107338] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 390.112868] ? check_preemption_disabled+0x48/0x280 [ 390.117896] run_timer_softirq+0x52/0xb0 [ 390.121953] ? rcu_read_lock_sched_held+0x14f/0x180 [ 390.126992] __do_softirq+0x308/0xb7e [ 390.130785] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 390.135271] ? lock_downgrade+0x900/0x900 [ 390.139418] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 390.144520] ? pvclock_read_flags+0x160/0x160 [ 390.149106] ? lapic_next_event+0x5a/0x90 [ 390.153253] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 390.158787] ? kvm_clock_read+0x18/0x30 [ 390.162777] ? kvm_sched_clock_read+0x9/0x20 [ 390.167190] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 390.172733] ? check_preemption_disabled+0x48/0x280 [ 390.177759] irq_exit+0x17f/0x1c0 [ 390.181221] smp_apic_timer_interrupt+0x1cb/0x760 [ 390.186080] ? smp_reschedule_interrupt+0x109/0x650 [ 390.191087] ? smp_call_function_single_interrupt+0x650/0x650 [ 390.196962] ? interrupt_entry+0xb5/0xc0 [ 390.201023] ? trace_hardirqs_off_caller+0xbb/0x310 [ 390.206066] ? trace_hardirqs_off_caller+0xbb/0x310 [ 390.211071] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 390.215918] ? trace_hardirqs_on_caller+0x310/0x310 [ 390.220940] ? trace_hardirqs_on_caller+0x310/0x310 [ 390.225967] ? task_prio+0x50/0x50 [ 390.229529] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 390.235070] ? check_preemption_disabled+0x48/0x280 [ 390.240082] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 390.244952] apic_timer_interrupt+0xf/0x20 [ 390.249177] [ 390.251417] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 390.256347] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 390.275241] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 390.282957] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 390.290219] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 390.297495] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 390.304759] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 390.312033] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 390.319341] skb_clone+0x1bb/0x500 [ 390.322911] ? skb_split+0x11e0/0x11e0 [ 390.326793] ? preempt_notifier_register+0x200/0x200 [ 390.331888] ? __switch_to_asm+0x34/0x70 [ 390.335944] ? __switch_to_asm+0x34/0x70 [ 390.339997] ? __switch_to_asm+0x40/0x70 [ 390.344048] ? __switch_to_asm+0x34/0x70 [ 390.348097] ? __switch_to_asm+0x40/0x70 [ 390.352160] ? __switch_to_asm+0x40/0x70 [ 390.356213] ? __switch_to_asm+0x34/0x70 [ 390.360266] ? __switch_to_asm+0x34/0x70 [ 390.364322] ? __switch_to_asm+0x40/0x70 [ 390.368370] ? __switch_to_asm+0x34/0x70 [ 390.372493] bpf_clone_redirect+0xb9/0x490 [ 390.376742] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 390.381811] ? __sched_text_start+0x8/0x8 [ 390.385966] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 390.390724] ? find_held_lock+0x36/0x1c0 [ 390.394788] ? lock_acquire+0x1ed/0x520 [ 390.398758] ? bpf_test_run+0x3ee/0x7a0 [ 390.402730] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 390.408265] ? check_preemption_disabled+0x48/0x280 [ 390.413280] ? kasan_check_read+0x11/0x20 [ 390.417440] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 390.422710] ? rcu_softirq_qs+0x20/0x20 [ 390.426690] ? preempt_schedule+0x4d/0x60 [ 390.430833] ? ___preempt_schedule+0x16/0x18 [ 390.435273] ? bpf_test_run+0x271/0x7a0 [ 390.439254] ? netlink_diag_dump+0x2a0/0x2a0 [ 390.443674] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 390.449224] ? bpf_test_init.isra.10+0x70/0x100 [ 390.453897] ? bpf_prog_test_run_skb+0x762/0xd60 [ 390.458661] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 390.463512] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 390.469049] ? fput+0x130/0x1a0 [ 390.472330] ? __bpf_prog_get+0x9b/0x290 [ 390.476392] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 390.481239] ? bpf_prog_test_run+0x130/0x1a0 [ 390.485665] ? __x64_sys_bpf+0x3d8/0x520 [ 390.489727] ? bpf_prog_get+0x20/0x20 [ 390.493543] ? do_syscall_64+0x1b9/0x820 [ 390.497599] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 390.502963] ? syscall_return_slowpath+0x5e0/0x5e0 [ 390.507890] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 390.512744] ? trace_hardirqs_on_caller+0x310/0x310 [ 390.517758] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 390.522775] ? prepare_exit_to_usermode+0x291/0x3b0 [ 390.527789] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 390.532649] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 390.538035] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 390.538119] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 390.544965] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 390.544970] Call Trace: [ 390.544975] [ 390.545005] dump_stack+0x244/0x39d [ 390.545025] ? dump_stack_print_info.cold.1+0x20/0x20 [ 390.551594] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 390.560864] warn_alloc.cold.116+0xb7/0x1bd [ 390.563424] syz-executor4 cpuset=syz4 mems_allowed=0 [ 390.565568] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 390.599028] ? lock_downgrade+0x900/0x900 [ 390.603185] ? trace_hardirqs_off+0xb8/0x310 [ 390.607604] ? trace_hardirqs_off+0xb8/0x310 [ 390.612022] __alloc_pages_slowpath+0x2651/0x2de0 [ 390.616910] ? warn_alloc+0x120/0x120 [ 390.620717] ? print_usage_bug+0xc0/0xc0 [ 390.624780] ? warn_alloc+0x120/0x120 [ 390.628587] ? warn_alloc+0x120/0x120 [ 390.632391] ? print_usage_bug+0xc0/0xc0 [ 390.636455] ? print_usage_bug+0xc0/0xc0 [ 390.640518] ? __lock_acquire+0x62f/0x4c20 [ 390.644795] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 390.650335] ? should_fail+0x22d/0xd01 [ 390.654227] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 390.659334] ? __lock_acquire+0x62f/0x4c20 [ 390.663573] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 390.668675] ? __lock_acquire+0x62f/0x4c20 [ 390.672918] ? should_fail+0x22d/0xd01 [ 390.676806] ? find_held_lock+0x36/0x1c0 [ 390.680875] ? mark_held_locks+0x130/0x130 [ 390.685119] ? mark_held_locks+0x130/0x130 [ 390.689374] ? zap_class+0x640/0x640 [ 390.693089] ? zap_class+0x640/0x640 [ 390.696809] ? print_usage_bug+0xc0/0xc0 [ 390.700869] ? do_raw_spin_unlock+0xa7/0x330 [ 390.705282] ? zap_class+0x640/0x640 [ 390.708999] ? print_usage_bug+0xc0/0xc0 [ 390.713082] ? wq_watchdog_touch+0x9c/0xfe [ 390.717320] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 390.722878] ? check_preemption_disabled+0x48/0x280 [ 390.727927] ? __lock_is_held+0xb5/0x140 [ 390.731996] __alloc_pages_nodemask+0xad8/0xea0 [ 390.736677] ? zap_class+0x640/0x640 [ 390.740401] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 390.745433] ? find_held_lock+0x36/0x1c0 [ 390.749506] ? ____cache_alloc_node+0x1c7/0x1e0 [ 390.754182] ? lock_downgrade+0x900/0x900 [ 390.758338] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 390.763882] cache_grow_begin+0xa5/0x8c0 [ 390.767961] ? do_raw_spin_unlock+0xa7/0x330 [ 390.772382] fallback_alloc+0x204/0x2e0 [ 390.776363] ____cache_alloc_node+0x1c7/0x1e0 [ 390.780870] kmem_cache_alloc_node+0xe3/0x730 [ 390.785402] ? ipv6_get_ifaddr+0x42e/0x620 [ 390.789653] __alloc_skb+0x119/0x770 [ 390.793366] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 390.798647] ? netdev_alloc_frag+0x1f0/0x1f0 [ 390.803074] ? lock_downgrade+0x900/0x900 [ 390.807232] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 390.812768] ? refcount_sub_and_test_checked+0x203/0x310 [ 390.818223] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 390.823677] ? addrconf_rs_timer+0x690/0x690 [ 390.828104] ndisc_alloc_skb+0x144/0x340 [ 390.832181] ndisc_send_rs+0x331/0x6e0 [ 390.836087] addrconf_rs_timer+0x314/0x690 [ 390.840332] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 390.844578] call_timer_fn+0x272/0x920 [ 390.848472] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 390.852709] ? process_timeout+0x40/0x40 [ 390.856789] ? mark_held_locks+0xc7/0x130 [ 390.860954] ? _raw_spin_unlock_irq+0x27/0x80 [ 390.865445] ? _raw_spin_unlock_irq+0x27/0x80 [ 390.869951] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 390.874184] ? lockdep_hardirqs_on+0x296/0x5b0 [ 390.878767] ? trace_hardirqs_on+0xbd/0x310 [ 390.883091] ? kasan_check_read+0x11/0x20 [ 390.887258] ? __run_timers+0x7da/0xc70 [ 390.891237] ? trace_hardirqs_off_caller+0x310/0x310 [ 390.896346] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 390.900586] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 390.904818] __run_timers+0x7e5/0xc70 [ 390.908627] ? timer_fixup_init+0x70/0x70 [ 390.912790] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 390.917821] ? zap_class+0x640/0x640 [ 390.921539] ? print_usage_bug+0xc0/0xc0 [ 390.925607] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 390.930808] ? find_held_lock+0x36/0x1c0 [ 390.934887] ? zap_class+0x640/0x640 [ 390.938645] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 390.944182] ? check_preemption_disabled+0x48/0x280 [ 390.949315] ? __lock_is_held+0xb5/0x140 [ 390.953384] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 390.958924] ? check_preemption_disabled+0x48/0x280 [ 390.963948] run_timer_softirq+0x52/0xb0 [ 390.968012] ? rcu_read_lock_sched_held+0x14f/0x180 [ 390.973027] __do_softirq+0x308/0xb7e [ 390.976828] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 390.981318] ? lock_downgrade+0x900/0x900 [ 390.985502] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 390.990624] ? pvclock_read_flags+0x160/0x160 [ 390.995118] ? lapic_next_event+0x5a/0x90 [ 390.999270] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 391.004809] ? kvm_clock_read+0x18/0x30 [ 391.008804] ? kvm_sched_clock_read+0x9/0x20 [ 391.013207] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 391.018756] ? check_preemption_disabled+0x48/0x280 [ 391.023776] irq_exit+0x17f/0x1c0 [ 391.027227] smp_apic_timer_interrupt+0x1cb/0x760 [ 391.032065] ? smp_reschedule_interrupt+0x109/0x650 [ 391.037083] ? smp_call_function_single_interrupt+0x650/0x650 [ 391.043051] ? interrupt_entry+0xb5/0xc0 [ 391.047108] ? trace_hardirqs_off_caller+0xbb/0x310 [ 391.052143] ? trace_hardirqs_off_caller+0xbb/0x310 [ 391.057191] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 391.062034] ? trace_hardirqs_on_caller+0x310/0x310 [ 391.067044] ? trace_hardirqs_on_caller+0x310/0x310 [ 391.072058] ? task_prio+0x50/0x50 [ 391.075597] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 391.081609] ? check_preemption_disabled+0x48/0x280 [ 391.086633] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 391.091488] apic_timer_interrupt+0xf/0x20 [ 391.095720] [ 391.097957] RIP: 0010:lock_acquire+0x268/0x520 [ 391.102557] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 391.121459] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 391.129168] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 391.136434] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 391.143702] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 391.150969] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 391.158235] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 391.165545] ? lruvec_lru_size+0x450/0x450 [ 391.169783] ? kasan_check_read+0x11/0x20 [ 391.173933] ? lock_release+0xa00/0xa00 [ 391.177917] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 391.182852] down_read_trylock+0xda/0x140 [ 391.186997] ? shrink_slab+0x207/0x8c0 [ 391.190880] ? downgrade_write+0x270/0x270 [ 391.195134] shrink_slab+0x207/0x8c0 [ 391.198848] ? shrink_active_list+0x1f00/0x1f00 [ 391.203522] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 391.209156] ? __lock_acquire+0x62f/0x4c20 [ 391.213393] ? percpu_ref_get_many+0x240/0x240 [ 391.218001] ? print_usage_bug+0xc0/0xc0 [ 391.222082] shrink_node+0x431/0x16b0 [ 391.225881] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 391.231189] ? shrink_node_memcg+0x18f0/0x18f0 [ 391.235776] ? kvm_clock_read+0x18/0x30 [ 391.239756] ? ktime_get+0x2c1/0x400 [ 391.243469] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 391.247965] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 391.253499] ? __cpuset_node_allowed+0x19b/0x660 [ 391.258252] ? mark_held_locks+0x130/0x130 [ 391.262485] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 391.268195] ? zap_class+0x640/0x640 [ 391.271921] do_try_to_free_pages+0x3e7/0x1290 [ 391.276513] ? zap_class+0x640/0x640 [ 391.280240] ? shrink_node+0x16b0/0x16b0 [ 391.284306] ? __lock_is_held+0xb5/0x140 [ 391.288391] try_to_free_pages+0x4d0/0xb90 [ 391.292642] ? do_try_to_free_pages+0x1290/0x1290 [ 391.297489] ? lock_acquire+0x1ed/0x520 [ 391.301454] ? set_page_refcounted+0x280/0x280 [ 391.306032] ? lock_release+0xa00/0xa00 [ 391.310015] ? _raw_spin_unlock_irq+0x60/0x80 [ 391.314503] ? psi_memstall_enter+0x240/0x2b0 [ 391.319006] ? psi_memstall_tick+0x230/0x230 [ 391.323420] __alloc_pages_slowpath+0xa48/0x2de0 [ 391.328195] ? warn_alloc+0x120/0x120 [ 391.332001] ? mark_held_locks+0x130/0x130 [ 391.336234] ? find_get_entry+0xaae/0x1120 [ 391.340484] ? filemap_map_pages+0x1a20/0x1a20 [ 391.345062] ? zap_class+0x640/0x640 [ 391.348777] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 391.354311] ? check_preemption_disabled+0x48/0x280 [ 391.359335] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 391.364867] ? should_fail+0x22d/0xd01 [ 391.368748] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 391.373893] ? zap_class+0x640/0x640 [ 391.377627] ? __lock_is_held+0xb5/0x140 [ 391.381685] ? mark_held_locks+0x130/0x130 [ 391.385917] ? lock_release+0xa00/0xa00 [ 391.389919] ? perf_trace_sched_process_exec+0x860/0x860 [ 391.395363] ? xa_load+0x2ba/0x460 [ 391.398914] ? lock_downgrade+0x900/0x900 [ 391.403176] ? __might_sleep+0x95/0x190 [ 391.407163] __alloc_pages_nodemask+0xad8/0xea0 [ 391.411828] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 391.416835] ? __page_cache_alloc+0x191/0x5c0 [ 391.421321] ? xa_load+0x2e1/0x460 [ 391.424855] ? xa_clear_mark+0x40/0x40 [ 391.428774] ? zap_class+0x640/0x640 [ 391.432484] ? zap_class+0x640/0x640 [ 391.436187] ? zap_class+0x640/0x640 [ 391.439893] ? __do_page_cache_readahead+0x663/0x810 [ 391.445029] ? find_held_lock+0x36/0x1c0 [ 391.449117] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 391.454816] alloc_pages_current+0x173/0x350 [ 391.459257] __page_cache_alloc+0x38c/0x5c0 [ 391.463590] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 391.468518] ? kasan_check_read+0x11/0x20 [ 391.472661] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 391.477934] ? generic_perform_write+0x6a0/0x6a0 [ 391.482700] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 391.488261] ? check_preemption_disabled+0x48/0x280 [ 391.493301] filemap_fault+0x1595/0x25f0 [ 391.497392] ? __lock_page_or_retry+0xa00/0xa00 [ 391.502087] ? mark_held_locks+0x130/0x130 [ 391.506323] ? filemap_map_pages+0xd6b/0x1a20 [ 391.510812] ? lock_downgrade+0x900/0x900 [ 391.514954] ? check_preemption_disabled+0x48/0x280 [ 391.519967] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 391.524903] ? kasan_check_read+0x11/0x20 [ 391.529047] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 391.534316] ? rcu_softirq_qs+0x20/0x20 [ 391.538311] ? filemap_map_pages+0xd92/0x1a20 [ 391.542810] ? find_get_entries_tag+0x1400/0x1400 [ 391.547648] ? debug_object_destroy+0x2b0/0x2b0 [ 391.552313] ? lock_pi_update_atomic+0x150/0x150 [ 391.557065] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 391.562606] ? lock_acquire+0x1ed/0x520 [ 391.566651] ? ext4_filemap_fault+0x7a/0xad [ 391.570989] ? lock_release+0xa00/0xa00 [ 391.574956] ? perf_trace_sched_process_exec+0x860/0x860 [ 391.580420] ? print_usage_bug+0xc0/0xc0 [ 391.584493] ? print_usage_bug+0xc0/0xc0 [ 391.588592] ? down_read+0x8d/0x120 [ 391.592226] ? ext4_filemap_fault+0x7a/0xad [ 391.596542] ? __down_interruptible+0x700/0x700 [ 391.601229] ext4_filemap_fault+0x82/0xad [ 391.605379] __do_fault+0x100/0x6b0 [ 391.608998] ? find_held_lock+0x36/0x1c0 [ 391.613069] ? pmd_devmap_trans_unstable+0x220/0x220 [ 391.618229] ? mark_held_locks+0x130/0x130 [ 391.622461] ? mark_held_locks+0x130/0x130 [ 391.626696] ? kasan_check_read+0x11/0x20 [ 391.630836] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 391.636375] __handle_mm_fault+0x3ea0/0x5be0 [ 391.640793] ? perf_trace_lock+0x7a0/0x7a0 [ 391.645047] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 391.649894] ? __switch_to_asm+0x34/0x70 [ 391.653971] ? __switch_to_asm+0x34/0x70 [ 391.658042] ? zap_class+0x640/0x640 [ 391.661749] ? zap_class+0x640/0x640 [ 391.665456] ? __x64_sys_futex+0x53e/0x6a0 [ 391.669691] ? find_held_lock+0x36/0x1c0 [ 391.673781] ? handle_mm_fault+0x42a/0xc70 [ 391.678015] ? lock_downgrade+0x900/0x900 [ 391.682166] ? check_preemption_disabled+0x48/0x280 [ 391.687213] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 391.692148] ? kasan_check_read+0x11/0x20 [ 391.696292] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 391.701586] ? rcu_softirq_qs+0x20/0x20 [ 391.705608] ? trace_hardirqs_off_caller+0x310/0x310 [ 391.710713] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 391.716250] ? sync_mm_rss+0x9a/0x1c0 [ 391.720070] handle_mm_fault+0x54f/0xc70 [ 391.724153] ? __handle_mm_fault+0x5be0/0x5be0 [ 391.728738] ? find_vma+0x34/0x190 [ 391.732287] __do_page_fault+0x5e8/0xe60 [ 391.736344] ? trace_hardirqs_off+0xb8/0x310 [ 391.740759] do_page_fault+0xf2/0x7e0 [ 391.744575] ? vmalloc_sync_all+0x30/0x30 [ 391.748723] ? error_entry+0x70/0xd0 [ 391.752447] ? trace_hardirqs_off_caller+0xbb/0x310 [ 391.757461] ? trace_hardirqs_on_caller+0xc0/0x310 [ 391.762389] ? syscall_return_slowpath+0x5e0/0x5e0 [ 391.767325] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 391.772180] ? trace_hardirqs_on_caller+0x310/0x310 [ 391.777193] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 391.782642] ? prepare_exit_to_usermode+0x291/0x3b0 [ 391.787654] ? page_fault+0x8/0x30 [ 391.791196] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 391.796036] ? page_fault+0x8/0x30 [ 391.799571] page_fault+0x1e/0x30 [ 391.803028] RIP: 0033:0x45ddf3 [ 391.806252] Code: Bad RIP value. [ 391.809611] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 391.814993] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 391.822254] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 391.829530] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 391.836852] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 391.844112] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 391.851420] warn_alloc_show_mem: 1 callbacks suppressed [ 391.851430] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 391.851432] Mem-Info: [ 391.851458] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 391.851458] active_file:17 inactive_file:17 isolated_file:0 [ 391.851458] unevictable:0 dirty:4 writeback:0 unstable:0 [ 391.851458] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 391.851458] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 391.851458] free:13550 free_pcp:124 free_cma:0 [ 391.856817] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 391.864123] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 391.866525] Call Trace: [ 391.899587] 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 [ 391.908927] [ 391.936666] lowmem_reserve[]: 0 2818 6321 6321 [ 391.939249] dump_stack+0x244/0x39d [ 391.965331] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 391.967481] ? dump_stack_print_info.cold.1+0x20/0x20 [ 391.972033] lowmem_reserve[]: 0 0 3503 3503 [ 391.975660] warn_alloc.cold.116+0xb7/0x1bd [ 392.002954] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 392.008148] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 392.012446] lowmem_reserve[]: 0 0 0 0 [ 392.016762] ? lock_downgrade+0x900/0x900 [ 392.045621] 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 [ 392.050465] ? trace_hardirqs_off+0xb8/0x310 [ 392.054231] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 392.058375] ? trace_hardirqs_off+0xb8/0x310 [ 392.071884] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 392.076295] __alloc_pages_slowpath+0x2651/0x2de0 [ 392.091007] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 392.095424] ? warn_alloc+0x120/0x120 [ 392.110114] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 392.114949] ? print_usage_bug+0xc0/0xc0 [ 392.123756] 1360 total pagecache pages [ 392.127546] ? warn_alloc+0x120/0x120 [ 392.136166] 0 pages in swap cache [ 392.140222] ? warn_alloc+0x120/0x120 [ 392.144083] Swap cache stats: add 0, delete 0, find 0/0 [ 392.148162] ? print_usage_bug+0xc0/0xc0 [ 392.151619] Free swap = 0kB [ 392.155413] ? kvm_clock_read+0x18/0x30 [ 392.160744] Total swap = 0kB [ 392.164824] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 392.167831] 1965979 pages RAM [ 392.171792] ? print_usage_bug+0xc0/0xc0 [ 392.174784] 0 pages HighMem/MovableOnly [ 392.179813] ? __lock_acquire+0x62f/0x4c20 [ 392.182890] 342854 pages reserved [ 392.186952] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 392.190921] 0 pages cma reserved [ 392.195162] ? should_fail+0x22d/0xd01 [ 392.198658] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 392.204138] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 392.204154] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 392.204169] ? __lock_acquire+0x62f/0x4c20 [ 392.207617] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 392.211427] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 392.217911] syz-fuzzer cpuset=/ mems_allowed=0 [ 392.223192] ? __lock_acquire+0x62f/0x4c20 [ 392.256595] ? should_fail+0x22d/0xd01 [ 392.260507] ? rcu_irq_exit+0x1a2/0x390 [ 392.264491] ? mark_held_locks+0x130/0x130 [ 392.268727] ? mark_held_locks+0x130/0x130 [ 392.272962] ? mark_held_locks+0xc7/0x130 [ 392.277104] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 392.282123] ? zap_class+0x640/0x640 [ 392.285840] ? print_usage_bug+0xc0/0xc0 [ 392.289915] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 392.295452] ? check_preemption_disabled+0x48/0x280 [ 392.300473] ? __lock_is_held+0xb5/0x140 [ 392.304530] __alloc_pages_nodemask+0xad8/0xea0 [ 392.309194] ? zap_class+0x640/0x640 [ 392.312912] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 392.317966] ? find_held_lock+0x36/0x1c0 [ 392.322042] ? ____cache_alloc_node+0x1c7/0x1e0 [ 392.326704] ? lock_downgrade+0x900/0x900 [ 392.330852] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 392.336388] cache_grow_begin+0xa5/0x8c0 [ 392.340449] ? do_raw_spin_unlock+0xa7/0x330 [ 392.344858] fallback_alloc+0x204/0x2e0 [ 392.348851] ____cache_alloc_node+0x1c7/0x1e0 [ 392.353359] kmem_cache_alloc_node+0xe3/0x730 [ 392.357865] ? ipv6_get_ifaddr+0x42e/0x620 [ 392.362099] __alloc_skb+0x119/0x770 [ 392.365825] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 392.371096] ? netdev_alloc_frag+0x1f0/0x1f0 [ 392.375527] ? lock_downgrade+0x900/0x900 [ 392.379723] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 392.385267] ? refcount_sub_and_test_checked+0x203/0x310 [ 392.390733] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 392.396175] ? addrconf_rs_timer+0x690/0x690 [ 392.400584] ndisc_alloc_skb+0x144/0x340 [ 392.404639] ndisc_send_rs+0x331/0x6e0 [ 392.408542] addrconf_rs_timer+0x314/0x690 [ 392.412779] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 392.417013] call_timer_fn+0x272/0x920 [ 392.420892] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 392.425158] ? process_timeout+0x40/0x40 [ 392.429219] ? __run_timers+0x7da/0xc70 [ 392.433199] ? _raw_spin_unlock_irq+0x27/0x80 [ 392.437703] ? _raw_spin_unlock_irq+0x27/0x80 [ 392.442202] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 392.446449] ? lockdep_hardirqs_on+0x296/0x5b0 [ 392.451029] ? trace_hardirqs_on+0xbd/0x310 [ 392.455360] ? kasan_check_read+0x11/0x20 [ 392.459539] ? __run_timers+0x7da/0xc70 [ 392.463540] ? trace_hardirqs_off_caller+0x310/0x310 [ 392.468642] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 392.472875] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 392.477101] __run_timers+0x7e5/0xc70 [ 392.480909] ? timer_fixup_init+0x70/0x70 [ 392.485053] ? kasan_check_read+0x11/0x20 [ 392.489214] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 392.494492] ? rcu_softirq_qs+0x20/0x20 [ 392.498474] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 392.504014] ? check_preemption_disabled+0x48/0x280 [ 392.509043] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 392.513814] ? retint_kernel+0x2d/0x2d [ 392.517701] ? trace_hardirqs_on_caller+0xc0/0x310 [ 392.522633] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 392.527391] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 392.532849] ? zap_class+0x640/0x640 [ 392.536570] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 392.542122] ? check_preemption_disabled+0x48/0x280 [ 392.547165] ? __lock_is_held+0xb5/0x140 [ 392.551224] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 392.556762] ? check_preemption_disabled+0x48/0x280 [ 392.561781] run_timer_softirq+0x52/0xb0 [ 392.565840] ? rcu_read_lock_sched_held+0x14f/0x180 [ 392.570855] __do_softirq+0x308/0xb7e [ 392.574658] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 392.579158] ? lock_downgrade+0x900/0x900 [ 392.583322] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 392.588440] ? pvclock_read_flags+0x160/0x160 [ 392.592951] ? lapic_next_event+0x5a/0x90 [ 392.597099] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 392.602649] ? kvm_clock_read+0x18/0x30 [ 392.606627] ? kvm_sched_clock_read+0x9/0x20 [ 392.611036] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 392.616619] ? check_preemption_disabled+0x48/0x280 [ 392.621646] irq_exit+0x17f/0x1c0 [ 392.625098] smp_apic_timer_interrupt+0x1cb/0x760 [ 392.629944] ? smp_reschedule_interrupt+0x109/0x650 [ 392.634971] ? smp_call_function_single_interrupt+0x650/0x650 [ 392.640852] ? interrupt_entry+0xb5/0xc0 [ 392.644917] ? trace_hardirqs_off_caller+0xbb/0x310 [ 392.650368] ? trace_hardirqs_off_caller+0xbb/0x310 [ 392.655390] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 392.660237] ? trace_hardirqs_on_caller+0x310/0x310 [ 392.665264] ? trace_hardirqs_on_caller+0x310/0x310 [ 392.670282] ? task_prio+0x50/0x50 [ 392.673823] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 392.679361] ? check_preemption_disabled+0x48/0x280 [ 392.684385] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 392.689241] apic_timer_interrupt+0xf/0x20 [ 392.693496] [ 392.695737] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 392.700667] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 392.719563] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 392.727278] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 392.734556] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 392.741822] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 392.749082] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 392.756347] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 392.763650] skb_clone+0x1bb/0x500 [ 392.767190] ? skb_split+0x11e0/0x11e0 [ 392.771092] ? preempt_notifier_register+0x200/0x200 [ 392.776187] ? __switch_to_asm+0x34/0x70 [ 392.780242] ? __switch_to_asm+0x34/0x70 [ 392.784314] ? __switch_to_asm+0x40/0x70 [ 392.788367] ? __switch_to_asm+0x34/0x70 [ 392.792435] ? __switch_to_asm+0x40/0x70 [ 392.796492] ? __switch_to_asm+0x40/0x70 [ 392.800589] ? __switch_to_asm+0x34/0x70 [ 392.804671] ? __switch_to_asm+0x34/0x70 [ 392.808727] ? __switch_to_asm+0x40/0x70 [ 392.812784] ? __switch_to_asm+0x34/0x70 [ 392.816840] bpf_clone_redirect+0xb9/0x490 [ 392.821102] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 392.826118] ? __sched_text_start+0x8/0x8 [ 392.830302] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 392.835081] ? find_held_lock+0x36/0x1c0 [ 392.839156] ? lock_acquire+0x1ed/0x520 [ 392.843140] ? bpf_test_run+0x3ee/0x7a0 [ 392.847137] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 392.852728] ? check_preemption_disabled+0x48/0x280 [ 392.857803] ? kasan_check_read+0x11/0x20 [ 392.861946] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 392.867229] ? rcu_softirq_qs+0x20/0x20 [ 392.871202] ? preempt_schedule+0x4d/0x60 [ 392.875347] ? ___preempt_schedule+0x16/0x18 [ 392.879761] ? bpf_test_run+0x271/0x7a0 [ 392.883761] ? netlink_diag_dump+0x2a0/0x2a0 [ 392.888199] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 392.893736] ? bpf_test_init.isra.10+0x70/0x100 [ 392.898426] ? bpf_prog_test_run_skb+0x762/0xd60 [ 392.903187] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 392.908034] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 392.913572] ? fput+0x130/0x1a0 [ 392.916874] ? __bpf_prog_get+0x9b/0x290 [ 392.920949] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 392.925791] ? bpf_prog_test_run+0x130/0x1a0 [ 392.930203] ? __x64_sys_bpf+0x3d8/0x520 [ 392.934263] ? bpf_prog_get+0x20/0x20 [ 392.938081] ? do_syscall_64+0x1b9/0x820 [ 392.942147] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 392.947528] ? syscall_return_slowpath+0x5e0/0x5e0 [ 392.952708] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 392.957567] ? trace_hardirqs_on_caller+0x310/0x310 [ 392.962588] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 392.967609] ? prepare_exit_to_usermode+0x291/0x3b0 [ 392.972648] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 392.977499] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 392.982882] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 392.982956] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 392.989814] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 392.996408] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 393.005661] Call Trace: [ 393.016137] syz-executor4 cpuset=syz4 mems_allowed=0 [ 393.018708] [ 393.025940] dump_stack+0x244/0x39d [ 393.029577] ? dump_stack_print_info.cold.1+0x20/0x20 [ 393.034779] warn_alloc.cold.116+0xb7/0x1bd [ 393.039107] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 393.043962] ? lock_downgrade+0x900/0x900 [ 393.048115] ? trace_hardirqs_off+0xb8/0x310 [ 393.052536] ? trace_hardirqs_off+0xb8/0x310 [ 393.056953] __alloc_pages_slowpath+0x2651/0x2de0 [ 393.061825] ? warn_alloc+0x120/0x120 [ 393.065645] ? print_usage_bug+0xc0/0xc0 [ 393.069706] ? warn_alloc+0x120/0x120 [ 393.073511] ? warn_alloc+0x120/0x120 [ 393.077315] ? print_usage_bug+0xc0/0xc0 [ 393.081883] ? print_usage_bug+0xc0/0xc0 [ 393.085950] ? __lock_acquire+0x62f/0x4c20 [ 393.090205] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 393.095772] ? should_fail+0x22d/0xd01 [ 393.099666] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 393.104772] ? __lock_acquire+0x62f/0x4c20 [ 393.109014] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 393.114143] ? __lock_acquire+0x62f/0x4c20 [ 393.118378] ? should_fail+0x22d/0xd01 [ 393.122263] ? find_held_lock+0x36/0x1c0 [ 393.126351] ? mark_held_locks+0x130/0x130 [ 393.130595] ? mark_held_locks+0x130/0x130 [ 393.134842] ? zap_class+0x640/0x640 [ 393.138590] ? zap_class+0x640/0x640 [ 393.142307] ? print_usage_bug+0xc0/0xc0 [ 393.146371] ? do_raw_spin_unlock+0xa7/0x330 [ 393.150778] ? zap_class+0x640/0x640 [ 393.154496] ? print_usage_bug+0xc0/0xc0 [ 393.158559] ? wq_watchdog_touch+0x9c/0xfe [ 393.162843] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 393.168379] ? check_preemption_disabled+0x48/0x280 [ 393.173430] ? __lock_is_held+0xb5/0x140 [ 393.177496] __alloc_pages_nodemask+0xad8/0xea0 [ 393.182165] ? zap_class+0x640/0x640 [ 393.185896] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 393.190941] ? find_held_lock+0x36/0x1c0 [ 393.195012] ? ____cache_alloc_node+0x1c7/0x1e0 [ 393.199681] ? lock_downgrade+0x900/0x900 [ 393.203833] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 393.209369] cache_grow_begin+0xa5/0x8c0 [ 393.213427] ? do_raw_spin_unlock+0xa7/0x330 [ 393.217836] fallback_alloc+0x204/0x2e0 [ 393.221813] ____cache_alloc_node+0x1c7/0x1e0 [ 393.226310] kmem_cache_alloc_node+0xe3/0x730 [ 393.230804] ? ipv6_get_ifaddr+0x42e/0x620 [ 393.235046] __alloc_skb+0x119/0x770 [ 393.238768] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 393.244053] ? netdev_alloc_frag+0x1f0/0x1f0 [ 393.248459] ? lock_downgrade+0x900/0x900 [ 393.252612] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 393.258157] ? refcount_sub_and_test_checked+0x203/0x310 [ 393.263616] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 393.269066] ? addrconf_rs_timer+0x690/0x690 [ 393.273489] ndisc_alloc_skb+0x144/0x340 [ 393.277572] ndisc_send_rs+0x331/0x6e0 [ 393.281469] addrconf_rs_timer+0x314/0x690 [ 393.285744] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 393.289988] call_timer_fn+0x272/0x920 [ 393.293875] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 393.298115] ? process_timeout+0x40/0x40 [ 393.302197] ? mark_held_locks+0xc7/0x130 [ 393.306346] ? _raw_spin_unlock_irq+0x27/0x80 [ 393.310849] ? _raw_spin_unlock_irq+0x27/0x80 [ 393.315393] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 393.319646] ? lockdep_hardirqs_on+0x296/0x5b0 [ 393.324233] ? trace_hardirqs_on+0xbd/0x310 [ 393.328556] ? kasan_check_read+0x11/0x20 [ 393.332699] ? __run_timers+0x7da/0xc70 [ 393.336672] ? trace_hardirqs_off_caller+0x310/0x310 [ 393.341778] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 393.346016] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 393.350245] __run_timers+0x7e5/0xc70 [ 393.354051] ? timer_fixup_init+0x70/0x70 [ 393.358192] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 393.363203] ? zap_class+0x640/0x640 [ 393.366937] ? print_usage_bug+0xc0/0xc0 [ 393.371012] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 393.376231] ? find_held_lock+0x36/0x1c0 [ 393.380305] ? zap_class+0x640/0x640 [ 393.384015] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 393.389579] ? check_preemption_disabled+0x48/0x280 [ 393.394598] ? __lock_is_held+0xb5/0x140 [ 393.398656] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 393.404191] ? check_preemption_disabled+0x48/0x280 [ 393.409236] run_timer_softirq+0x52/0xb0 [ 393.413289] ? rcu_read_lock_sched_held+0x14f/0x180 [ 393.418297] __do_softirq+0x308/0xb7e [ 393.422112] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 393.426619] ? lock_downgrade+0x900/0x900 [ 393.430832] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 393.435939] ? pvclock_read_flags+0x160/0x160 [ 393.440459] ? lapic_next_event+0x5a/0x90 [ 393.444623] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 393.450181] ? kvm_clock_read+0x18/0x30 [ 393.454156] ? kvm_sched_clock_read+0x9/0x20 [ 393.458564] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 393.464157] ? check_preemption_disabled+0x48/0x280 [ 393.469201] irq_exit+0x17f/0x1c0 [ 393.472655] smp_apic_timer_interrupt+0x1cb/0x760 [ 393.477499] ? smp_reschedule_interrupt+0x109/0x650 [ 393.482572] ? smp_call_function_single_interrupt+0x650/0x650 [ 393.488453] ? interrupt_entry+0xb5/0xc0 [ 393.492520] ? trace_hardirqs_off_caller+0xbb/0x310 [ 393.497534] ? trace_hardirqs_off_caller+0xbb/0x310 [ 393.502549] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 393.507419] ? trace_hardirqs_on_caller+0x310/0x310 [ 393.512445] ? trace_hardirqs_on_caller+0x310/0x310 [ 393.517459] ? task_prio+0x50/0x50 [ 393.521000] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 393.526540] ? check_preemption_disabled+0x48/0x280 [ 393.531562] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 393.536412] apic_timer_interrupt+0xf/0x20 [ 393.540639] [ 393.542876] RIP: 0010:lock_acquire+0x268/0x520 [ 393.547458] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 393.566352] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 393.574059] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 393.581319] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 393.588600] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 393.595863] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 393.603156] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 393.610460] ? lruvec_lru_size+0x450/0x450 [ 393.614691] ? kasan_check_read+0x11/0x20 [ 393.618837] ? lock_release+0xa00/0xa00 [ 393.622838] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 393.627771] down_read_trylock+0xda/0x140 [ 393.631914] ? shrink_slab+0x207/0x8c0 [ 393.635795] ? downgrade_write+0x270/0x270 [ 393.640040] shrink_slab+0x207/0x8c0 [ 393.643755] ? shrink_active_list+0x1f00/0x1f00 [ 393.648430] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 393.654056] ? __lock_acquire+0x62f/0x4c20 [ 393.658339] ? percpu_ref_get_many+0x240/0x240 [ 393.662939] ? print_usage_bug+0xc0/0xc0 [ 393.667007] shrink_node+0x431/0x16b0 [ 393.670809] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 393.676115] ? shrink_node_memcg+0x18f0/0x18f0 [ 393.680743] ? kvm_clock_read+0x18/0x30 [ 393.684721] ? ktime_get+0x2c1/0x400 [ 393.688456] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 393.692955] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 393.698490] ? __cpuset_node_allowed+0x19b/0x660 [ 393.703246] ? mark_held_locks+0x130/0x130 [ 393.707512] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 393.713221] ? zap_class+0x640/0x640 [ 393.716942] do_try_to_free_pages+0x3e7/0x1290 [ 393.721523] ? zap_class+0x640/0x640 [ 393.725249] ? shrink_node+0x16b0/0x16b0 [ 393.729310] ? __lock_is_held+0xb5/0x140 [ 393.733391] try_to_free_pages+0x4d0/0xb90 [ 393.737663] ? do_try_to_free_pages+0x1290/0x1290 [ 393.742521] ? lock_acquire+0x1ed/0x520 [ 393.746491] ? set_page_refcounted+0x280/0x280 [ 393.751080] ? lock_release+0xa00/0xa00 [ 393.755055] ? _raw_spin_unlock_irq+0x60/0x80 [ 393.759551] ? psi_memstall_enter+0x240/0x2b0 [ 393.764045] ? psi_memstall_tick+0x230/0x230 [ 393.768459] __alloc_pages_slowpath+0xa48/0x2de0 [ 393.773242] ? warn_alloc+0x120/0x120 [ 393.777041] ? mark_held_locks+0x130/0x130 [ 393.781288] ? find_get_entry+0xaae/0x1120 [ 393.785528] ? filemap_map_pages+0x1a20/0x1a20 [ 393.790114] ? zap_class+0x640/0x640 [ 393.793853] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 393.799389] ? check_preemption_disabled+0x48/0x280 [ 393.804503] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 393.810039] ? should_fail+0x22d/0xd01 [ 393.813927] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 393.819025] ? zap_class+0x640/0x640 [ 393.822773] ? __lock_is_held+0xb5/0x140 [ 393.826855] ? mark_held_locks+0x130/0x130 [ 393.831105] ? lock_release+0xa00/0xa00 [ 393.835084] ? perf_trace_sched_process_exec+0x860/0x860 [ 393.840531] ? xa_load+0x2ba/0x460 [ 393.844098] ? lock_downgrade+0x900/0x900 [ 393.848256] ? __might_sleep+0x95/0x190 [ 393.852247] __alloc_pages_nodemask+0xad8/0xea0 [ 393.856923] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 393.861955] ? __page_cache_alloc+0x191/0x5c0 [ 393.866447] ? xa_load+0x2e1/0x460 [ 393.869998] ? xa_clear_mark+0x40/0x40 [ 393.873882] ? zap_class+0x640/0x640 [ 393.877632] ? zap_class+0x640/0x640 [ 393.881348] ? zap_class+0x640/0x640 [ 393.885063] ? __do_page_cache_readahead+0x663/0x810 [ 393.890185] ? find_held_lock+0x36/0x1c0 [ 393.894251] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 393.899791] alloc_pages_current+0x173/0x350 [ 393.904206] __page_cache_alloc+0x38c/0x5c0 [ 393.908526] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 393.913452] ? kasan_check_read+0x11/0x20 [ 393.917600] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 393.922926] ? generic_perform_write+0x6a0/0x6a0 [ 393.927684] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 393.933237] ? check_preemption_disabled+0x48/0x280 [ 393.938264] filemap_fault+0x1595/0x25f0 [ 393.942344] ? __lock_page_or_retry+0xa00/0xa00 [ 393.947013] ? mark_held_locks+0x130/0x130 [ 393.951252] ? filemap_map_pages+0xd6b/0x1a20 [ 393.955749] ? lock_downgrade+0x900/0x900 [ 393.959896] ? check_preemption_disabled+0x48/0x280 [ 393.964939] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 393.969863] ? kasan_check_read+0x11/0x20 [ 393.974006] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 393.979275] ? rcu_softirq_qs+0x20/0x20 [ 393.983256] ? filemap_map_pages+0xd92/0x1a20 [ 393.987764] ? find_get_entries_tag+0x1400/0x1400 [ 393.992608] ? debug_object_destroy+0x2b0/0x2b0 [ 393.997278] ? lock_pi_update_atomic+0x150/0x150 [ 394.002030] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 394.007575] ? lock_acquire+0x1ed/0x520 [ 394.011576] ? ext4_filemap_fault+0x7a/0xad [ 394.015902] ? lock_release+0xa00/0xa00 [ 394.019869] ? perf_trace_sched_process_exec+0x860/0x860 [ 394.025319] ? print_usage_bug+0xc0/0xc0 [ 394.029382] ? print_usage_bug+0xc0/0xc0 [ 394.033450] ? down_read+0x8d/0x120 [ 394.037071] ? ext4_filemap_fault+0x7a/0xad [ 394.041387] ? __down_interruptible+0x700/0x700 [ 394.046056] ext4_filemap_fault+0x82/0xad [ 394.050200] __do_fault+0x100/0x6b0 [ 394.053816] ? find_held_lock+0x36/0x1c0 [ 394.057869] ? pmd_devmap_trans_unstable+0x220/0x220 [ 394.062980] ? mark_held_locks+0x130/0x130 [ 394.067224] ? mark_held_locks+0x130/0x130 [ 394.071476] ? kasan_check_read+0x11/0x20 [ 394.075614] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 394.081166] __handle_mm_fault+0x3ea0/0x5be0 [ 394.085566] ? perf_trace_lock+0x7a0/0x7a0 [ 394.089804] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 394.094644] ? __switch_to_asm+0x34/0x70 [ 394.098704] ? __switch_to_asm+0x34/0x70 [ 394.102770] ? zap_class+0x640/0x640 [ 394.106539] ? zap_class+0x640/0x640 [ 394.110278] ? __x64_sys_futex+0x53e/0x6a0 [ 394.114540] ? find_held_lock+0x36/0x1c0 [ 394.118604] ? handle_mm_fault+0x42a/0xc70 [ 394.122890] ? lock_downgrade+0x900/0x900 [ 394.127039] ? check_preemption_disabled+0x48/0x280 [ 394.132057] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 394.136986] ? kasan_check_read+0x11/0x20 [ 394.141150] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 394.146463] ? rcu_softirq_qs+0x20/0x20 [ 394.150448] ? trace_hardirqs_off_caller+0x310/0x310 [ 394.155550] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 394.161080] ? sync_mm_rss+0x9a/0x1c0 [ 394.164936] handle_mm_fault+0x54f/0xc70 [ 394.168994] ? __handle_mm_fault+0x5be0/0x5be0 [ 394.173571] ? find_vma+0x34/0x190 [ 394.177106] __do_page_fault+0x5e8/0xe60 [ 394.181177] ? trace_hardirqs_off+0xb8/0x310 [ 394.185593] do_page_fault+0xf2/0x7e0 [ 394.189389] ? vmalloc_sync_all+0x30/0x30 [ 394.193530] ? error_entry+0x70/0xd0 [ 394.197238] ? trace_hardirqs_off_caller+0xbb/0x310 [ 394.202264] ? trace_hardirqs_on_caller+0xc0/0x310 [ 394.207191] ? syscall_return_slowpath+0x5e0/0x5e0 [ 394.212111] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 394.216969] ? trace_hardirqs_on_caller+0x310/0x310 [ 394.221986] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 394.227448] ? prepare_exit_to_usermode+0x291/0x3b0 [ 394.232457] ? page_fault+0x8/0x30 [ 394.235988] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 394.240838] ? page_fault+0x8/0x30 [ 394.244388] page_fault+0x1e/0x30 [ 394.247835] RIP: 0033:0x45ddf3 [ 394.251031] Code: Bad RIP value. [ 394.254386] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 394.259756] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 394.267013] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 394.274288] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 394.281547] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 394.288828] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 394.296114] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 394.296119] warn_alloc_show_mem: 1 callbacks suppressed [ 394.296125] Mem-Info: [ 394.303437] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 394.308812] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 394.308812] active_file:17 inactive_file:17 isolated_file:0 [ 394.308812] unevictable:0 dirty:4 writeback:0 unstable:0 [ 394.308812] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 394.308812] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 394.308812] free:13550 free_pcp:124 free_cma:0 [ 394.311198] Call Trace: [ 394.320580] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 394.353593] [ 394.356161] 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 [ 394.383905] dump_stack+0x244/0x39d [ 394.386027] lowmem_reserve[]: 0 2818 6321 6321 [ 394.412119] ? dump_stack_print_info.cold.1+0x20/0x20 [ 394.415738] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 394.420323] warn_alloc.cold.116+0xb7/0x1bd [ 394.425481] lowmem_reserve[]: 0 0 3503 3503 [ 394.452811] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 394.457104] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 394.461462] ? lock_downgrade+0x900/0x900 [ 394.466287] lowmem_reserve[]: 0 0 0 0 [ 394.495177] ? trace_hardirqs_off+0xb8/0x310 [ 394.499294] 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 [ 394.503103] ? trace_hardirqs_off+0xb8/0x310 [ 394.507515] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 394.521038] __alloc_pages_slowpath+0x2651/0x2de0 [ 394.525415] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 394.540166] ? warn_alloc+0x120/0x120 [ 394.544967] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 394.559689] ? print_usage_bug+0xc0/0xc0 [ 394.563468] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 394.572288] ? warn_alloc+0x120/0x120 [ 394.576320] 1360 total pagecache pages [ 394.584881] ? warn_alloc+0x120/0x120 [ 394.588663] 0 pages in swap cache [ 394.592543] ? print_usage_bug+0xc0/0xc0 [ 394.596318] Swap cache stats: add 0, delete 0, find 0/0 [ 394.599788] ? kvm_clock_read+0x18/0x30 [ 394.603820] Free swap = 0kB [ 394.609171] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 394.613117] Total swap = 0kB [ 394.616155] ? print_usage_bug+0xc0/0xc0 [ 394.621152] 1965979 pages RAM [ 394.624166] ? __lock_acquire+0x62f/0x4c20 [ 394.628205] 0 pages HighMem/MovableOnly [ 394.631302] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 394.635507] 342854 pages reserved [ 394.639473] ? should_fail+0x22d/0xd01 [ 394.644980] 0 pages cma reserved [ 394.648429] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 394.652361] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 394.655648] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 394.661002] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 394.667387] ? __lock_acquire+0x62f/0x4c20 [ 394.672463] syz-fuzzer cpuset=/ mems_allowed=0 [ 394.682679] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 394.696554] ? __lock_acquire+0x62f/0x4c20 [ 394.700833] ? should_fail+0x22d/0xd01 [ 394.704729] ? rcu_irq_exit+0x1a2/0x390 [ 394.708727] ? mark_held_locks+0x130/0x130 [ 394.712980] ? mark_held_locks+0x130/0x130 [ 394.717220] ? mark_held_locks+0xc7/0x130 [ 394.721367] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 394.726389] ? zap_class+0x640/0x640 [ 394.730109] ? print_usage_bug+0xc0/0xc0 [ 394.734195] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 394.739746] ? check_preemption_disabled+0x48/0x280 [ 394.744767] ? __lock_is_held+0xb5/0x140 [ 394.748827] __alloc_pages_nodemask+0xad8/0xea0 [ 394.753491] ? zap_class+0x640/0x640 [ 394.757209] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 394.762235] ? find_held_lock+0x36/0x1c0 [ 394.766299] ? ____cache_alloc_node+0x1c7/0x1e0 [ 394.770964] ? lock_downgrade+0x900/0x900 [ 394.775114] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 394.780659] cache_grow_begin+0xa5/0x8c0 [ 394.784713] ? do_raw_spin_unlock+0xa7/0x330 [ 394.789117] fallback_alloc+0x204/0x2e0 [ 394.793095] ____cache_alloc_node+0x1c7/0x1e0 [ 394.797595] kmem_cache_alloc_node+0xe3/0x730 [ 394.802115] ? ipv6_get_ifaddr+0x42e/0x620 [ 394.806361] __alloc_skb+0x119/0x770 [ 394.810082] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 394.815379] ? netdev_alloc_frag+0x1f0/0x1f0 [ 394.819784] ? lock_downgrade+0x900/0x900 [ 394.823954] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 394.829518] ? refcount_sub_and_test_checked+0x203/0x310 [ 394.834970] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 394.840432] ? addrconf_rs_timer+0x690/0x690 [ 394.844906] ndisc_alloc_skb+0x144/0x340 [ 394.848982] ndisc_send_rs+0x331/0x6e0 [ 394.852981] addrconf_rs_timer+0x314/0x690 [ 394.857220] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 394.861459] call_timer_fn+0x272/0x920 [ 394.865340] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 394.869585] ? process_timeout+0x40/0x40 [ 394.873654] ? __run_timers+0x7da/0xc70 [ 394.877630] ? _raw_spin_unlock_irq+0x27/0x80 [ 394.882135] ? _raw_spin_unlock_irq+0x27/0x80 [ 394.886629] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 394.890863] ? lockdep_hardirqs_on+0x296/0x5b0 [ 394.895448] ? trace_hardirqs_on+0xbd/0x310 [ 394.899766] ? kasan_check_read+0x11/0x20 [ 394.903909] ? __run_timers+0x7da/0xc70 [ 394.907883] ? trace_hardirqs_off_caller+0x310/0x310 [ 394.913005] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 394.917247] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 394.921478] __run_timers+0x7e5/0xc70 [ 394.925307] ? timer_fixup_init+0x70/0x70 [ 394.929459] ? kasan_check_read+0x11/0x20 [ 394.933607] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 394.938881] ? rcu_softirq_qs+0x20/0x20 [ 394.942854] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 394.948637] ? check_preemption_disabled+0x48/0x280 [ 394.953663] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 394.958428] ? retint_kernel+0x2d/0x2d [ 394.962328] ? trace_hardirqs_on_caller+0xc0/0x310 [ 394.967251] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 394.972005] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 394.977473] ? zap_class+0x640/0x640 [ 394.981192] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 394.986730] ? check_preemption_disabled+0x48/0x280 [ 394.991796] ? __lock_is_held+0xb5/0x140 [ 394.995856] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 395.001394] ? check_preemption_disabled+0x48/0x280 [ 395.006441] run_timer_softirq+0x52/0xb0 [ 395.010505] ? rcu_read_lock_sched_held+0x14f/0x180 [ 395.015524] __do_softirq+0x308/0xb7e [ 395.019333] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 395.023841] ? lock_downgrade+0x900/0x900 [ 395.028007] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 395.033159] ? pvclock_read_flags+0x160/0x160 [ 395.037662] ? lapic_next_event+0x5a/0x90 [ 395.041815] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 395.047374] ? kvm_clock_read+0x18/0x30 [ 395.051351] ? kvm_sched_clock_read+0x9/0x20 [ 395.055795] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 395.061336] ? check_preemption_disabled+0x48/0x280 [ 395.066376] irq_exit+0x17f/0x1c0 [ 395.069863] smp_apic_timer_interrupt+0x1cb/0x760 [ 395.074703] ? smp_reschedule_interrupt+0x109/0x650 [ 395.079834] ? smp_call_function_single_interrupt+0x650/0x650 [ 395.085714] ? interrupt_entry+0xb5/0xc0 [ 395.089776] ? trace_hardirqs_off_caller+0xbb/0x310 [ 395.094804] ? trace_hardirqs_off_caller+0xbb/0x310 [ 395.099835] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 395.104679] ? trace_hardirqs_on_caller+0x310/0x310 [ 395.109697] ? trace_hardirqs_on_caller+0x310/0x310 [ 395.114712] ? task_prio+0x50/0x50 [ 395.118257] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 395.123797] ? check_preemption_disabled+0x48/0x280 [ 395.128818] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 395.133671] apic_timer_interrupt+0xf/0x20 [ 395.137902] [ 395.140149] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 395.145082] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 395.163979] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 395.171689] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 395.178984] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 395.186260] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 395.193525] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 395.200790] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 395.208089] skb_clone+0x1bb/0x500 [ 395.211623] ? skb_split+0x11e0/0x11e0 [ 395.215558] ? preempt_notifier_register+0x200/0x200 [ 395.220667] ? __switch_to_asm+0x34/0x70 [ 395.224732] ? __switch_to_asm+0x34/0x70 [ 395.228814] ? __switch_to_asm+0x40/0x70 [ 395.232862] ? __switch_to_asm+0x34/0x70 [ 395.236911] ? __switch_to_asm+0x40/0x70 [ 395.240963] ? __switch_to_asm+0x40/0x70 [ 395.245031] ? __switch_to_asm+0x34/0x70 [ 395.249085] ? __switch_to_asm+0x34/0x70 [ 395.253147] ? __switch_to_asm+0x40/0x70 [ 395.257203] ? __switch_to_asm+0x34/0x70 [ 395.261276] bpf_clone_redirect+0xb9/0x490 [ 395.265529] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 395.270543] ? __sched_text_start+0x8/0x8 [ 395.274686] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 395.279478] ? find_held_lock+0x36/0x1c0 [ 395.283571] ? lock_acquire+0x1ed/0x520 [ 395.287561] ? bpf_test_run+0x3ee/0x7a0 [ 395.291529] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 395.297075] ? check_preemption_disabled+0x48/0x280 [ 395.302106] ? kasan_check_read+0x11/0x20 [ 395.306256] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 395.311546] ? rcu_softirq_qs+0x20/0x20 [ 395.315533] ? preempt_schedule+0x4d/0x60 [ 395.319681] ? ___preempt_schedule+0x16/0x18 [ 395.324093] ? bpf_test_run+0x271/0x7a0 [ 395.328087] ? netlink_diag_dump+0x2a0/0x2a0 [ 395.332508] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 395.338039] ? bpf_test_init.isra.10+0x70/0x100 [ 395.342711] ? bpf_prog_test_run_skb+0x762/0xd60 [ 395.347504] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 395.352357] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 395.357892] ? fput+0x130/0x1a0 [ 395.361176] ? __bpf_prog_get+0x9b/0x290 [ 395.365250] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 395.370144] ? bpf_prog_test_run+0x130/0x1a0 [ 395.374548] ? __x64_sys_bpf+0x3d8/0x520 [ 395.378620] ? bpf_prog_get+0x20/0x20 [ 395.382480] ? do_syscall_64+0x1b9/0x820 [ 395.386532] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 395.391888] ? syscall_return_slowpath+0x5e0/0x5e0 [ 395.396811] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 395.401655] ? trace_hardirqs_on_caller+0x310/0x310 [ 395.406698] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 395.411712] ? prepare_exit_to_usermode+0x291/0x3b0 [ 395.416727] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 395.421573] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 395.426946] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 395.427075] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 395.433869] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 395.433874] Call Trace: [ 395.433879] [ 395.433894] dump_stack+0x244/0x39d [ 395.433915] ? dump_stack_print_info.cold.1+0x20/0x20 [ 395.440471] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 395.450019] warn_alloc.cold.116+0xb7/0x1bd [ 395.452571] syz-executor4 cpuset=syz4 mems_allowed=0 [ 395.454713] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 395.488214] ? lock_downgrade+0x900/0x900 [ 395.492372] ? trace_hardirqs_off+0xb8/0x310 [ 395.496800] ? trace_hardirqs_off+0xb8/0x310 [ 395.501232] __alloc_pages_slowpath+0x2651/0x2de0 [ 395.506156] ? warn_alloc+0x120/0x120 [ 395.509974] ? print_usage_bug+0xc0/0xc0 [ 395.514032] ? warn_alloc+0x120/0x120 [ 395.517834] ? warn_alloc+0x120/0x120 [ 395.521632] ? print_usage_bug+0xc0/0xc0 [ 395.525699] ? kvm_clock_read+0x18/0x30 [ 395.529665] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 395.534679] ? print_usage_bug+0xc0/0xc0 [ 395.538740] ? __lock_acquire+0x62f/0x4c20 [ 395.542974] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 395.548508] ? should_fail+0x22d/0xd01 [ 395.552443] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 395.557716] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 395.562842] ? __lock_acquire+0x62f/0x4c20 [ 395.567108] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 395.572260] ? __lock_acquire+0x62f/0x4c20 [ 395.576488] ? should_fail+0x22d/0xd01 [ 395.580385] ? rcu_irq_exit+0x1a2/0x390 [ 395.584366] ? mark_held_locks+0x130/0x130 [ 395.588604] ? mark_held_locks+0x130/0x130 [ 395.592843] ? mark_held_locks+0xc7/0x130 [ 395.597000] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 395.602012] ? zap_class+0x640/0x640 [ 395.605723] ? print_usage_bug+0xc0/0xc0 [ 395.609786] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 395.615324] ? check_preemption_disabled+0x48/0x280 [ 395.620358] ? __lock_is_held+0xb5/0x140 [ 395.624423] __alloc_pages_nodemask+0xad8/0xea0 [ 395.629096] ? zap_class+0x640/0x640 [ 395.632831] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 395.637873] ? find_held_lock+0x36/0x1c0 [ 395.641961] ? ____cache_alloc_node+0x1c7/0x1e0 [ 395.646635] ? lock_downgrade+0x900/0x900 [ 395.650809] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 395.656353] cache_grow_begin+0xa5/0x8c0 [ 395.660412] ? do_raw_spin_unlock+0xa7/0x330 [ 395.664826] fallback_alloc+0x204/0x2e0 [ 395.668810] ____cache_alloc_node+0x1c7/0x1e0 [ 395.673319] kmem_cache_alloc_node+0xe3/0x730 [ 395.677819] ? ipv6_get_ifaddr+0x42e/0x620 [ 395.682068] __alloc_skb+0x119/0x770 [ 395.685782] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 395.691064] ? netdev_alloc_frag+0x1f0/0x1f0 [ 395.695477] ? lock_downgrade+0x900/0x900 [ 395.699631] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 395.705180] ? refcount_sub_and_test_checked+0x203/0x310 [ 395.710636] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 395.716091] ? addrconf_rs_timer+0x690/0x690 [ 395.720524] ndisc_alloc_skb+0x144/0x340 [ 395.724589] ndisc_send_rs+0x331/0x6e0 [ 395.728478] addrconf_rs_timer+0x314/0x690 [ 395.732715] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 395.736972] call_timer_fn+0x272/0x920 [ 395.740859] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 395.745094] ? process_timeout+0x40/0x40 [ 395.749171] ? mark_held_locks+0xc7/0x130 [ 395.753320] ? _raw_spin_unlock_irq+0x27/0x80 [ 395.757814] ? _raw_spin_unlock_irq+0x27/0x80 [ 395.762333] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 395.766564] ? lockdep_hardirqs_on+0x296/0x5b0 [ 395.771185] ? trace_hardirqs_on+0xbd/0x310 [ 395.775519] ? kasan_check_read+0x11/0x20 [ 395.779663] ? __run_timers+0x7da/0xc70 [ 395.783643] ? trace_hardirqs_off_caller+0x310/0x310 [ 395.788744] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 395.792976] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 395.797224] __run_timers+0x7e5/0xc70 [ 395.801068] ? timer_fixup_init+0x70/0x70 [ 395.805212] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 395.810224] ? zap_class+0x640/0x640 [ 395.813938] ? print_usage_bug+0xc0/0xc0 [ 395.817998] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 395.823212] ? find_held_lock+0x36/0x1c0 [ 395.827286] ? zap_class+0x640/0x640 [ 395.831016] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 395.836550] ? check_preemption_disabled+0x48/0x280 [ 395.841607] ? __lock_is_held+0xb5/0x140 [ 395.845697] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 395.851265] ? check_preemption_disabled+0x48/0x280 [ 395.856283] run_timer_softirq+0x52/0xb0 [ 395.860515] ? rcu_read_lock_sched_held+0x14f/0x180 [ 395.865528] __do_softirq+0x308/0xb7e [ 395.869335] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 395.873841] ? lock_downgrade+0x900/0x900 [ 395.877989] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 395.883099] ? pvclock_read_flags+0x160/0x160 [ 395.887624] ? lapic_next_event+0x5a/0x90 [ 395.891773] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 395.897314] ? kvm_clock_read+0x18/0x30 [ 395.901308] ? kvm_sched_clock_read+0x9/0x20 [ 395.905721] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 395.911261] ? check_preemption_disabled+0x48/0x280 [ 395.916303] irq_exit+0x17f/0x1c0 [ 395.919760] smp_apic_timer_interrupt+0x1cb/0x760 [ 395.924602] ? smp_reschedule_interrupt+0x109/0x650 [ 395.929627] ? smp_call_function_single_interrupt+0x650/0x650 [ 395.935512] ? interrupt_entry+0xb5/0xc0 [ 395.939576] ? trace_hardirqs_off_caller+0xbb/0x310 [ 395.944592] ? trace_hardirqs_off_caller+0xbb/0x310 [ 395.949612] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 395.954456] ? trace_hardirqs_on_caller+0x310/0x310 [ 395.959492] ? trace_hardirqs_on_caller+0x310/0x310 [ 395.964508] ? task_prio+0x50/0x50 [ 395.968079] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 395.973628] ? check_preemption_disabled+0x48/0x280 [ 395.978673] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 395.983520] apic_timer_interrupt+0xf/0x20 [ 395.987762] [ 395.990000] RIP: 0010:lock_acquire+0x268/0x520 [ 395.994580] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 396.013476] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 396.021199] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 396.028464] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 396.035791] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 396.043086] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 396.050353] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 396.057642] ? lruvec_lru_size+0x450/0x450 [ 396.061874] ? kasan_check_read+0x11/0x20 [ 396.066025] ? lock_release+0xa00/0xa00 [ 396.070001] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 396.074943] down_read_trylock+0xda/0x140 [ 396.079089] ? shrink_slab+0x207/0x8c0 [ 396.082986] ? downgrade_write+0x270/0x270 [ 396.087222] shrink_slab+0x207/0x8c0 [ 396.090946] ? shrink_active_list+0x1f00/0x1f00 [ 396.095628] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 396.101265] ? __lock_acquire+0x62f/0x4c20 [ 396.105513] ? percpu_ref_get_many+0x240/0x240 [ 396.110143] ? print_usage_bug+0xc0/0xc0 [ 396.114208] shrink_node+0x431/0x16b0 [ 396.118014] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 396.123328] ? shrink_node_memcg+0x18f0/0x18f0 [ 396.127939] ? kvm_clock_read+0x18/0x30 [ 396.131916] ? ktime_get+0x2c1/0x400 [ 396.135626] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 396.140155] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 396.145688] ? __cpuset_node_allowed+0x19b/0x660 [ 396.150438] ? mark_held_locks+0x130/0x130 [ 396.154673] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 396.160384] ? zap_class+0x640/0x640 [ 396.164106] do_try_to_free_pages+0x3e7/0x1290 [ 396.168689] ? zap_class+0x640/0x640 [ 396.172414] ? shrink_node+0x16b0/0x16b0 [ 396.176476] ? __lock_is_held+0xb5/0x140 [ 396.180546] try_to_free_pages+0x4d0/0xb90 [ 396.184782] ? do_try_to_free_pages+0x1290/0x1290 [ 396.189647] ? lock_acquire+0x1ed/0x520 [ 396.193622] ? set_page_refcounted+0x280/0x280 [ 396.198211] ? lock_release+0xa00/0xa00 [ 396.202227] ? _raw_spin_unlock_irq+0x60/0x80 [ 396.206719] ? psi_memstall_enter+0x240/0x2b0 [ 396.211213] ? psi_memstall_tick+0x230/0x230 [ 396.215628] __alloc_pages_slowpath+0xa48/0x2de0 [ 396.220433] ? warn_alloc+0x120/0x120 [ 396.224224] ? mark_held_locks+0x130/0x130 [ 396.228470] ? find_get_entry+0xaae/0x1120 [ 396.232724] ? filemap_map_pages+0x1a20/0x1a20 [ 396.237318] ? zap_class+0x640/0x640 [ 396.241033] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 396.246597] ? check_preemption_disabled+0x48/0x280 [ 396.251629] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 396.257183] ? should_fail+0x22d/0xd01 [ 396.261118] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 396.266239] ? zap_class+0x640/0x640 [ 396.269984] ? __lock_is_held+0xb5/0x140 [ 396.274052] ? mark_held_locks+0x130/0x130 [ 396.278288] ? lock_release+0xa00/0xa00 [ 396.282258] ? perf_trace_sched_process_exec+0x860/0x860 [ 396.287708] ? xa_load+0x2ba/0x460 [ 396.291276] ? lock_downgrade+0x900/0x900 [ 396.295435] ? __might_sleep+0x95/0x190 [ 396.299408] __alloc_pages_nodemask+0xad8/0xea0 [ 396.304078] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 396.309089] ? __page_cache_alloc+0x191/0x5c0 [ 396.313593] ? xa_load+0x2e1/0x460 [ 396.317136] ? xa_clear_mark+0x40/0x40 [ 396.321020] ? zap_class+0x640/0x640 [ 396.324748] ? zap_class+0x640/0x640 [ 396.328473] ? zap_class+0x640/0x640 [ 396.332179] ? __do_page_cache_readahead+0x663/0x810 [ 396.337278] ? find_held_lock+0x36/0x1c0 [ 396.341341] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 396.346891] alloc_pages_current+0x173/0x350 [ 396.351317] __page_cache_alloc+0x38c/0x5c0 [ 396.355632] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 396.360552] ? kasan_check_read+0x11/0x20 [ 396.364694] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 396.369978] ? generic_perform_write+0x6a0/0x6a0 [ 396.374727] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 396.380258] ? check_preemption_disabled+0x48/0x280 [ 396.385293] filemap_fault+0x1595/0x25f0 [ 396.389377] ? __lock_page_or_retry+0xa00/0xa00 [ 396.394049] ? mark_held_locks+0x130/0x130 [ 396.398284] ? filemap_map_pages+0xd6b/0x1a20 [ 396.402795] ? lock_downgrade+0x900/0x900 [ 396.406954] ? check_preemption_disabled+0x48/0x280 [ 396.411965] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 396.416907] ? kasan_check_read+0x11/0x20 [ 396.421046] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 396.426335] ? rcu_softirq_qs+0x20/0x20 [ 396.430314] ? filemap_map_pages+0xd92/0x1a20 [ 396.434847] ? find_get_entries_tag+0x1400/0x1400 [ 396.439703] ? debug_object_destroy+0x2b0/0x2b0 [ 396.444372] ? lock_pi_update_atomic+0x150/0x150 [ 396.449120] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 396.454675] ? lock_acquire+0x1ed/0x520 [ 396.458642] ? ext4_filemap_fault+0x7a/0xad [ 396.462992] ? lock_release+0xa00/0xa00 [ 396.466958] ? perf_trace_sched_process_exec+0x860/0x860 [ 396.472406] ? print_usage_bug+0xc0/0xc0 [ 396.476464] ? print_usage_bug+0xc0/0xc0 [ 396.480551] ? down_read+0x8d/0x120 [ 396.484172] ? ext4_filemap_fault+0x7a/0xad [ 396.488489] ? __down_interruptible+0x700/0x700 [ 396.493166] ext4_filemap_fault+0x82/0xad [ 396.497313] __do_fault+0x100/0x6b0 [ 396.500935] ? find_held_lock+0x36/0x1c0 [ 396.504992] ? pmd_devmap_trans_unstable+0x220/0x220 [ 396.510106] ? mark_held_locks+0x130/0x130 [ 396.514343] ? mark_held_locks+0x130/0x130 [ 396.518614] ? kasan_check_read+0x11/0x20 [ 396.522776] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 396.528315] __handle_mm_fault+0x3ea0/0x5be0 [ 396.532718] ? perf_trace_lock+0x7a0/0x7a0 [ 396.536970] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 396.541813] ? __switch_to_asm+0x34/0x70 [ 396.545868] ? __switch_to_asm+0x34/0x70 [ 396.549940] ? zap_class+0x640/0x640 [ 396.553648] ? zap_class+0x640/0x640 [ 396.557354] ? __x64_sys_futex+0x53e/0x6a0 [ 396.561583] ? find_held_lock+0x36/0x1c0 [ 396.565649] ? handle_mm_fault+0x42a/0xc70 [ 396.569895] ? lock_downgrade+0x900/0x900 [ 396.574043] ? check_preemption_disabled+0x48/0x280 [ 396.579056] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 396.583979] ? kasan_check_read+0x11/0x20 [ 396.588120] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 396.593408] ? rcu_softirq_qs+0x20/0x20 [ 396.597377] ? trace_hardirqs_off_caller+0x310/0x310 [ 396.602494] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 396.608040] ? sync_mm_rss+0x9a/0x1c0 [ 396.611863] handle_mm_fault+0x54f/0xc70 [ 396.615928] ? __handle_mm_fault+0x5be0/0x5be0 [ 396.620511] ? find_vma+0x34/0x190 [ 396.624052] __do_page_fault+0x5e8/0xe60 [ 396.628120] ? trace_hardirqs_off+0xb8/0x310 [ 396.632599] do_page_fault+0xf2/0x7e0 [ 396.636396] ? vmalloc_sync_all+0x30/0x30 [ 396.640542] ? error_entry+0x70/0xd0 [ 396.644265] ? trace_hardirqs_off_caller+0xbb/0x310 [ 396.649274] ? trace_hardirqs_on_caller+0xc0/0x310 [ 396.654200] ? syscall_return_slowpath+0x5e0/0x5e0 [ 396.659123] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 396.663993] ? trace_hardirqs_on_caller+0x310/0x310 [ 396.669006] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 396.674462] ? prepare_exit_to_usermode+0x291/0x3b0 [ 396.679513] ? page_fault+0x8/0x30 [ 396.683090] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 396.687937] ? page_fault+0x8/0x30 [ 396.691480] page_fault+0x1e/0x30 [ 396.694947] RIP: 0033:0x45ddf3 [ 396.698153] Code: Bad RIP value. [ 396.701511] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 396.706880] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 396.714159] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 396.721422] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 396.728700] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 396.735991] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 396.743330] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 396.743335] warn_alloc_show_mem: 1 callbacks suppressed [ 396.743342] Mem-Info: [ 396.750611] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 396.755977] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 396.755977] active_file:17 inactive_file:17 isolated_file:0 [ 396.755977] unevictable:0 dirty:4 writeback:0 unstable:0 [ 396.755977] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 396.755977] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 396.755977] free:13550 free_pcp:124 free_cma:0 [ 396.758348] Call Trace: [ 396.767780] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 396.800793] [ 396.803363] 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 [ 396.831111] dump_stack+0x244/0x39d [ 396.833233] lowmem_reserve[]: 0 2818 6321 6321 [ 396.859342] ? dump_stack_print_info.cold.1+0x20/0x20 [ 396.862940] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 396.867519] warn_alloc.cold.116+0xb7/0x1bd [ 396.872675] lowmem_reserve[]: 0 0 3503 3503 [ 396.899991] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 396.904307] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 396.908631] ? lock_downgrade+0x900/0x900 [ 396.913448] lowmem_reserve[]: 0 0 0 0 [ 396.942350] ? trace_hardirqs_off+0xb8/0x310 [ 396.946471] 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 [ 396.950472] ? trace_hardirqs_off+0xb8/0x310 [ 396.954857] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 396.968376] __alloc_pages_slowpath+0x2651/0x2de0 [ 396.972760] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 396.987516] ? warn_alloc+0x120/0x120 [ 396.992350] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 397.007074] ? print_usage_bug+0xc0/0xc0 [ 397.010872] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 397.019692] ? warn_alloc+0x120/0x120 [ 397.023729] 1360 total pagecache pages [ 397.032326] ? warn_alloc+0x120/0x120 [ 397.036145] 0 pages in swap cache [ 397.040025] ? print_usage_bug+0xc0/0xc0 [ 397.043817] Swap cache stats: add 0, delete 0, find 0/0 [ 397.047259] ? print_usage_bug+0xc0/0xc0 [ 397.051290] Free swap = 0kB [ 397.056650] ? __lock_acquire+0x62f/0x4c20 [ 397.060679] Total swap = 0kB [ 397.063686] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 397.067889] 1965979 pages RAM [ 397.070909] ? should_fail+0x22d/0xd01 [ 397.076417] 0 pages HighMem/MovableOnly [ 397.079593] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 397.079600] ? __lock_acquire+0x62f/0x4c20 [ 397.079608] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 397.079614] ? __lock_acquire+0x62f/0x4c20 [ 397.079620] ? should_fail+0x22d/0xd01 [ 397.079626] ? find_held_lock+0x36/0x1c0 [ 397.079635] ? mark_held_locks+0x130/0x130 [ 397.079644] ? mark_held_locks+0x130/0x130 [ 397.079649] ? zap_class+0x640/0x640 [ 397.079655] ? zap_class+0x640/0x640 [ 397.079662] ? print_usage_bug+0xc0/0xc0 [ 397.079668] ? do_raw_spin_unlock+0xa7/0x330 [ 397.079674] ? zap_class+0x640/0x640 [ 397.079680] ? print_usage_bug+0xc0/0xc0 [ 397.079687] ? wq_watchdog_touch+0x9c/0xfe [ 397.079695] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 397.079703] ? check_preemption_disabled+0x48/0x280 [ 397.079713] ? __lock_is_held+0xb5/0x140 [ 397.079722] __alloc_pages_nodemask+0xad8/0xea0 [ 397.079728] ? zap_class+0x640/0x640 [ 397.079736] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 397.079747] ? find_held_lock+0x36/0x1c0 [ 397.079758] ? ____cache_alloc_node+0x1c7/0x1e0 [ 397.079765] ? lock_downgrade+0x900/0x900 [ 397.079774] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 397.079783] cache_grow_begin+0xa5/0x8c0 [ 397.079788] ? do_raw_spin_unlock+0xa7/0x330 [ 397.079798] fallback_alloc+0x204/0x2e0 [ 397.079806] ____cache_alloc_node+0x1c7/0x1e0 [ 397.079815] kmem_cache_alloc_node+0xe3/0x730 [ 397.079822] ? ipv6_get_ifaddr+0x42e/0x620 [ 397.079834] __alloc_skb+0x119/0x770 [ 397.079841] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 397.079848] ? netdev_alloc_frag+0x1f0/0x1f0 [ 397.079855] ? lock_downgrade+0x900/0x900 [ 397.079864] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 397.079871] ? refcount_sub_and_test_checked+0x203/0x310 [ 397.079879] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 397.079885] ? addrconf_rs_timer+0x690/0x690 [ 397.079896] ndisc_alloc_skb+0x144/0x340 [ 397.079906] ndisc_send_rs+0x331/0x6e0 [ 397.079936] addrconf_rs_timer+0x314/0x690 [ 397.079966] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 397.083843] 342854 pages reserved [ 397.087868] call_timer_fn+0x272/0x920 [ 397.092964] 0 pages cma reserved [ 397.097187] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 397.102350] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 397.106540] ? process_timeout+0x40/0x40 [ 397.110475] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 397.114470] ? __run_timers+0x7da/0xc70 [ 397.118703] syz-fuzzer cpuset=/ mems_allowed=0 [ 397.122954] ? _raw_spin_unlock_irq+0x27/0x80 [ 397.326295] ? _raw_spin_unlock_irq+0x27/0x80 [ 397.330794] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 397.335023] ? lockdep_hardirqs_on+0x296/0x5b0 [ 397.339629] ? trace_hardirqs_on+0xbd/0x310 [ 397.343965] ? kasan_check_read+0x11/0x20 [ 397.348123] ? __run_timers+0x7da/0xc70 [ 397.352104] ? trace_hardirqs_off_caller+0x310/0x310 [ 397.357214] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 397.361448] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 397.365683] __run_timers+0x7e5/0xc70 [ 397.369496] ? timer_fixup_init+0x70/0x70 [ 397.373649] ? kasan_check_read+0x11/0x20 [ 397.377825] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 397.383139] ? rcu_softirq_qs+0x20/0x20 [ 397.387134] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 397.392706] ? check_preemption_disabled+0x48/0x280 [ 397.397730] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 397.402520] ? retint_kernel+0x2d/0x2d [ 397.406433] ? trace_hardirqs_on_caller+0xc0/0x310 [ 397.411375] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 397.416151] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 397.421595] ? zap_class+0x640/0x640 [ 397.425337] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 397.430867] ? check_preemption_disabled+0x48/0x280 [ 397.435880] ? __lock_is_held+0xb5/0x140 [ 397.439941] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 397.445489] ? check_preemption_disabled+0x48/0x280 [ 397.450518] run_timer_softirq+0x52/0xb0 [ 397.454606] ? rcu_read_lock_sched_held+0x14f/0x180 [ 397.459616] __do_softirq+0x308/0xb7e [ 397.463448] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 397.467938] ? lock_downgrade+0x900/0x900 [ 397.472086] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 397.477194] ? pvclock_read_flags+0x160/0x160 [ 397.481691] ? lapic_next_event+0x5a/0x90 [ 397.485836] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 397.491373] ? kvm_clock_read+0x18/0x30 [ 397.495363] ? kvm_sched_clock_read+0x9/0x20 [ 397.499792] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 397.505356] ? check_preemption_disabled+0x48/0x280 [ 397.510377] irq_exit+0x17f/0x1c0 [ 397.513853] smp_apic_timer_interrupt+0x1cb/0x760 [ 397.518695] ? smp_reschedule_interrupt+0x109/0x650 [ 397.523709] ? smp_call_function_single_interrupt+0x650/0x650 [ 397.529624] ? interrupt_entry+0xb5/0xc0 [ 397.533684] ? trace_hardirqs_off_caller+0xbb/0x310 [ 397.538700] ? trace_hardirqs_off_caller+0xbb/0x310 [ 397.543714] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 397.548554] ? trace_hardirqs_on_caller+0x310/0x310 [ 397.553567] ? trace_hardirqs_on_caller+0x310/0x310 [ 397.558602] ? task_prio+0x50/0x50 [ 397.562161] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 397.567725] ? check_preemption_disabled+0x48/0x280 [ 397.572752] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 397.577598] apic_timer_interrupt+0xf/0x20 [ 397.581841] [ 397.584077] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 397.589019] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 397.607916] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 397.615621] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 397.622902] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 397.630165] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 397.637458] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 397.644732] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 397.652045] skb_clone+0x1bb/0x500 [ 397.655613] ? skb_split+0x11e0/0x11e0 [ 397.659498] ? preempt_notifier_register+0x200/0x200 [ 397.664595] ? __switch_to_asm+0x34/0x70 [ 397.668654] ? __switch_to_asm+0x34/0x70 [ 397.672741] ? __switch_to_asm+0x40/0x70 [ 397.676824] ? __switch_to_asm+0x34/0x70 [ 397.680881] ? __switch_to_asm+0x40/0x70 [ 397.684944] ? __switch_to_asm+0x40/0x70 [ 397.688999] ? __switch_to_asm+0x34/0x70 [ 397.693056] ? __switch_to_asm+0x34/0x70 [ 397.697112] ? __switch_to_asm+0x40/0x70 [ 397.701182] ? __switch_to_asm+0x34/0x70 [ 397.705245] bpf_clone_redirect+0xb9/0x490 [ 397.709490] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 397.714508] ? __sched_text_start+0x8/0x8 [ 397.718651] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 397.723436] ? find_held_lock+0x36/0x1c0 [ 397.727507] ? lock_acquire+0x1ed/0x520 [ 397.731502] ? bpf_test_run+0x3ee/0x7a0 [ 397.735472] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 397.741004] ? check_preemption_disabled+0x48/0x280 [ 397.746028] ? kasan_check_read+0x11/0x20 [ 397.750171] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 397.755460] ? rcu_softirq_qs+0x20/0x20 [ 397.759439] ? preempt_schedule+0x4d/0x60 [ 397.763588] ? ___preempt_schedule+0x16/0x18 [ 397.768003] ? bpf_test_run+0x271/0x7a0 [ 397.771985] ? netlink_diag_dump+0x2a0/0x2a0 [ 397.776391] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 397.781931] ? bpf_test_init.isra.10+0x70/0x100 [ 397.786607] ? bpf_prog_test_run_skb+0x762/0xd60 [ 397.791385] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 397.796235] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 397.801772] ? fput+0x130/0x1a0 [ 397.805072] ? __bpf_prog_get+0x9b/0x290 [ 397.809142] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 397.813993] ? bpf_prog_test_run+0x130/0x1a0 [ 397.818406] ? __x64_sys_bpf+0x3d8/0x520 [ 397.822461] ? bpf_prog_get+0x20/0x20 [ 397.826275] ? do_syscall_64+0x1b9/0x820 [ 397.830355] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 397.835727] ? syscall_return_slowpath+0x5e0/0x5e0 [ 397.840667] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 397.845522] ? trace_hardirqs_on_caller+0x310/0x310 [ 397.850533] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 397.855561] ? prepare_exit_to_usermode+0x291/0x3b0 [ 397.860622] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 397.865487] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 397.870866] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 397.870948] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 397.877827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 397.884410] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 397.893679] Call Trace: [ 397.904153] syz-executor4 cpuset=syz4 mems_allowed=0 [ 397.906753] [ 397.913991] dump_stack+0x244/0x39d [ 397.917626] ? dump_stack_print_info.cold.1+0x20/0x20 [ 397.922855] warn_alloc.cold.116+0xb7/0x1bd [ 397.927182] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 397.932027] ? lock_downgrade+0x900/0x900 [ 397.936180] ? trace_hardirqs_off+0xb8/0x310 [ 397.940602] ? trace_hardirqs_off+0xb8/0x310 [ 397.945025] __alloc_pages_slowpath+0x2651/0x2de0 [ 397.949915] ? warn_alloc+0x120/0x120 [ 397.953719] ? print_usage_bug+0xc0/0xc0 [ 397.957780] ? warn_alloc+0x120/0x120 [ 397.961607] ? warn_alloc+0x120/0x120 [ 397.965419] ? print_usage_bug+0xc0/0xc0 [ 397.969484] ? print_usage_bug+0xc0/0xc0 [ 397.973574] ? __lock_acquire+0x62f/0x4c20 [ 397.977834] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 397.983375] ? should_fail+0x22d/0xd01 [ 397.987268] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 397.992372] ? __lock_acquire+0x62f/0x4c20 [ 397.996643] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 398.001744] ? __lock_acquire+0x62f/0x4c20 [ 398.005975] ? should_fail+0x22d/0xd01 [ 398.009857] ? find_held_lock+0x36/0x1c0 [ 398.013931] ? mark_held_locks+0x130/0x130 [ 398.018171] ? mark_held_locks+0x130/0x130 [ 398.022397] ? zap_class+0x640/0x640 [ 398.026107] ? zap_class+0x640/0x640 [ 398.029839] ? print_usage_bug+0xc0/0xc0 [ 398.033908] ? do_raw_spin_unlock+0xa7/0x330 [ 398.038307] ? zap_class+0x640/0x640 [ 398.042026] ? print_usage_bug+0xc0/0xc0 [ 398.046095] ? wq_watchdog_touch+0x9c/0xfe [ 398.050369] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 398.055908] ? check_preemption_disabled+0x48/0x280 [ 398.060929] ? __lock_is_held+0xb5/0x140 [ 398.064990] __alloc_pages_nodemask+0xad8/0xea0 [ 398.069655] ? zap_class+0x640/0x640 [ 398.073379] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 398.078418] ? find_held_lock+0x36/0x1c0 [ 398.082490] ? ____cache_alloc_node+0x1c7/0x1e0 [ 398.087195] ? lock_downgrade+0x900/0x900 [ 398.091355] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 398.096899] cache_grow_begin+0xa5/0x8c0 [ 398.100966] ? do_raw_spin_unlock+0xa7/0x330 [ 398.105382] fallback_alloc+0x204/0x2e0 [ 398.109361] ____cache_alloc_node+0x1c7/0x1e0 [ 398.113863] kmem_cache_alloc_node+0xe3/0x730 [ 398.118360] ? ipv6_get_ifaddr+0x42e/0x620 [ 398.122605] __alloc_skb+0x119/0x770 [ 398.126331] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 398.131620] ? netdev_alloc_frag+0x1f0/0x1f0 [ 398.136027] ? lock_downgrade+0x900/0x900 [ 398.140180] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 398.145716] ? refcount_sub_and_test_checked+0x203/0x310 [ 398.151184] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 398.156649] ? addrconf_rs_timer+0x690/0x690 [ 398.161075] ndisc_alloc_skb+0x144/0x340 [ 398.165144] ndisc_send_rs+0x331/0x6e0 [ 398.169033] addrconf_rs_timer+0x314/0x690 [ 398.173315] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 398.177569] call_timer_fn+0x272/0x920 [ 398.181468] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 398.185718] ? process_timeout+0x40/0x40 [ 398.189798] ? mark_held_locks+0xc7/0x130 [ 398.193959] ? _raw_spin_unlock_irq+0x27/0x80 [ 398.198448] ? _raw_spin_unlock_irq+0x27/0x80 [ 398.202936] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 398.207165] ? lockdep_hardirqs_on+0x296/0x5b0 [ 398.211751] ? trace_hardirqs_on+0xbd/0x310 [ 398.216102] ? kasan_check_read+0x11/0x20 [ 398.220256] ? __run_timers+0x7da/0xc70 [ 398.224229] ? trace_hardirqs_off_caller+0x310/0x310 [ 398.229350] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 398.233625] __run_timers+0x7e5/0xc70 [ 398.237473] ? timer_fixup_init+0x70/0x70 [ 398.241632] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 398.246641] ? zap_class+0x640/0x640 [ 398.250370] ? print_usage_bug+0xc0/0xc0 [ 398.254451] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 398.259642] ? find_held_lock+0x36/0x1c0 [ 398.263708] ? zap_class+0x640/0x640 [ 398.267452] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 398.272997] ? check_preemption_disabled+0x48/0x280 [ 398.278019] ? __lock_is_held+0xb5/0x140 [ 398.282088] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 398.287664] ? check_preemption_disabled+0x48/0x280 [ 398.292698] run_timer_softirq+0x52/0xb0 [ 398.296755] ? rcu_read_lock_sched_held+0x14f/0x180 [ 398.301768] __do_softirq+0x308/0xb7e [ 398.305567] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 398.310063] ? lock_downgrade+0x900/0x900 [ 398.314220] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 398.319328] ? pvclock_read_flags+0x160/0x160 [ 398.323820] ? lapic_next_event+0x5a/0x90 [ 398.327980] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 398.333529] ? kvm_clock_read+0x18/0x30 [ 398.337497] ? kvm_sched_clock_read+0x9/0x20 [ 398.341898] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 398.347439] ? check_preemption_disabled+0x48/0x280 [ 398.352482] irq_exit+0x17f/0x1c0 [ 398.355949] smp_apic_timer_interrupt+0x1cb/0x760 [ 398.360814] ? smp_reschedule_interrupt+0x109/0x650 [ 398.365828] ? smp_call_function_single_interrupt+0x650/0x650 [ 398.371707] ? interrupt_entry+0xb5/0xc0 [ 398.375765] ? trace_hardirqs_off_caller+0xbb/0x310 [ 398.380774] ? trace_hardirqs_off_caller+0xbb/0x310 [ 398.385787] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 398.390623] ? trace_hardirqs_on_caller+0x310/0x310 [ 398.395645] ? trace_hardirqs_on_caller+0x310/0x310 [ 398.400655] ? task_prio+0x50/0x50 [ 398.404209] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 398.409746] ? check_preemption_disabled+0x48/0x280 [ 398.414765] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 398.419616] apic_timer_interrupt+0xf/0x20 [ 398.423838] [ 398.426072] RIP: 0010:lock_acquire+0x268/0x520 [ 398.430667] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 398.449574] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 398.457303] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 398.464570] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 398.471838] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 398.479099] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 398.486383] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 398.493668] ? lruvec_lru_size+0x450/0x450 [ 398.497896] ? kasan_check_read+0x11/0x20 [ 398.502043] ? lock_release+0xa00/0xa00 [ 398.506026] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 398.510981] down_read_trylock+0xda/0x140 [ 398.515123] ? shrink_slab+0x207/0x8c0 [ 398.519019] ? downgrade_write+0x270/0x270 [ 398.523264] shrink_slab+0x207/0x8c0 [ 398.526981] ? shrink_active_list+0x1f00/0x1f00 [ 398.531672] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 398.537297] ? __lock_acquire+0x62f/0x4c20 [ 398.541540] ? percpu_ref_get_many+0x240/0x240 [ 398.546150] ? print_usage_bug+0xc0/0xc0 [ 398.550240] shrink_node+0x431/0x16b0 [ 398.554042] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 398.559345] ? shrink_node_memcg+0x18f0/0x18f0 [ 398.563935] ? kvm_clock_read+0x18/0x30 [ 398.567919] ? ktime_get+0x2c1/0x400 [ 398.571637] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 398.576145] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 398.581702] ? __cpuset_node_allowed+0x19b/0x660 [ 398.586456] ? mark_held_locks+0x130/0x130 [ 398.590696] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 398.596409] ? zap_class+0x640/0x640 [ 398.600144] do_try_to_free_pages+0x3e7/0x1290 [ 398.604728] ? zap_class+0x640/0x640 [ 398.608458] ? shrink_node+0x16b0/0x16b0 [ 398.612524] ? __lock_is_held+0xb5/0x140 [ 398.616603] try_to_free_pages+0x4d0/0xb90 [ 398.620842] ? do_try_to_free_pages+0x1290/0x1290 [ 398.625698] ? lock_acquire+0x1ed/0x520 [ 398.629672] ? set_page_refcounted+0x280/0x280 [ 398.634263] ? lock_release+0xa00/0xa00 [ 398.638235] ? _raw_spin_unlock_irq+0x60/0x80 [ 398.642730] ? psi_memstall_enter+0x240/0x2b0 [ 398.647230] ? psi_memstall_tick+0x230/0x230 [ 398.651654] __alloc_pages_slowpath+0xa48/0x2de0 [ 398.656436] ? warn_alloc+0x120/0x120 [ 398.660237] ? mark_held_locks+0x130/0x130 [ 398.664479] ? find_get_entry+0xaae/0x1120 [ 398.668729] ? filemap_map_pages+0x1a20/0x1a20 [ 398.673320] ? zap_class+0x640/0x640 [ 398.677040] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 398.682582] ? check_preemption_disabled+0x48/0x280 [ 398.687597] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 398.693146] ? should_fail+0x22d/0xd01 [ 398.697040] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 398.702151] ? zap_class+0x640/0x640 [ 398.705896] ? __lock_is_held+0xb5/0x140 [ 398.709984] ? mark_held_locks+0x130/0x130 [ 398.714225] ? lock_release+0xa00/0xa00 [ 398.718201] ? perf_trace_sched_process_exec+0x860/0x860 [ 398.723653] ? xa_load+0x2ba/0x460 [ 398.727214] ? lock_downgrade+0x900/0x900 [ 398.731367] ? __might_sleep+0x95/0x190 [ 398.735349] __alloc_pages_nodemask+0xad8/0xea0 [ 398.740025] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 398.745041] ? __page_cache_alloc+0x191/0x5c0 [ 398.749533] ? xa_load+0x2e1/0x460 [ 398.753071] ? xa_clear_mark+0x40/0x40 [ 398.756954] ? zap_class+0x640/0x640 [ 398.760670] ? zap_class+0x640/0x640 [ 398.764392] ? zap_class+0x640/0x640 [ 398.768099] ? __do_page_cache_readahead+0x663/0x810 [ 398.773227] ? find_held_lock+0x36/0x1c0 [ 398.777292] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 398.782868] alloc_pages_current+0x173/0x350 [ 398.787314] __page_cache_alloc+0x38c/0x5c0 [ 398.791632] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 398.796559] ? kasan_check_read+0x11/0x20 [ 398.800714] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 398.805989] ? generic_perform_write+0x6a0/0x6a0 [ 398.810738] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 398.816293] ? check_preemption_disabled+0x48/0x280 [ 398.821318] filemap_fault+0x1595/0x25f0 [ 398.825391] ? __lock_page_or_retry+0xa00/0xa00 [ 398.830085] ? mark_held_locks+0x130/0x130 [ 398.834325] ? filemap_map_pages+0xd6b/0x1a20 [ 398.838820] ? lock_downgrade+0x900/0x900 [ 398.842967] ? check_preemption_disabled+0x48/0x280 [ 398.847982] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 398.852911] ? kasan_check_read+0x11/0x20 [ 398.857068] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 398.862335] ? rcu_softirq_qs+0x20/0x20 [ 398.866332] ? filemap_map_pages+0xd92/0x1a20 [ 398.870846] ? find_get_entries_tag+0x1400/0x1400 [ 398.875686] ? debug_object_destroy+0x2b0/0x2b0 [ 398.880359] ? lock_pi_update_atomic+0x150/0x150 [ 398.885106] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 398.890692] ? lock_acquire+0x1ed/0x520 [ 398.894694] ? ext4_filemap_fault+0x7a/0xad [ 398.899017] ? lock_release+0xa00/0xa00 [ 398.902986] ? perf_trace_sched_process_exec+0x860/0x860 [ 398.908448] ? print_usage_bug+0xc0/0xc0 [ 398.912508] ? print_usage_bug+0xc0/0xc0 [ 398.916578] ? down_read+0x8d/0x120 [ 398.920197] ? ext4_filemap_fault+0x7a/0xad [ 398.924532] ? __down_interruptible+0x700/0x700 [ 398.929211] ext4_filemap_fault+0x82/0xad [ 398.933363] __do_fault+0x100/0x6b0 [ 398.936988] ? find_held_lock+0x36/0x1c0 [ 398.941052] ? pmd_devmap_trans_unstable+0x220/0x220 [ 398.946163] ? mark_held_locks+0x130/0x130 [ 398.950561] ? mark_held_locks+0x130/0x130 [ 398.954836] ? kasan_check_read+0x11/0x20 [ 398.958981] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 398.964572] __handle_mm_fault+0x3ea0/0x5be0 [ 398.968992] ? perf_trace_lock+0x7a0/0x7a0 [ 398.973237] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 398.978091] ? __switch_to_asm+0x34/0x70 [ 398.982152] ? __switch_to_asm+0x34/0x70 [ 398.986221] ? zap_class+0x640/0x640 [ 398.989934] ? zap_class+0x640/0x640 [ 398.993652] ? __x64_sys_futex+0x53e/0x6a0 [ 398.997885] ? find_held_lock+0x36/0x1c0 [ 399.001955] ? handle_mm_fault+0x42a/0xc70 [ 399.006191] ? lock_downgrade+0x900/0x900 [ 399.010338] ? check_preemption_disabled+0x48/0x280 [ 399.015353] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 399.020281] ? kasan_check_read+0x11/0x20 [ 399.024423] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 399.029695] ? rcu_softirq_qs+0x20/0x20 [ 399.033662] ? trace_hardirqs_off_caller+0x310/0x310 [ 399.038780] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 399.044343] ? sync_mm_rss+0x9a/0x1c0 [ 399.048153] handle_mm_fault+0x54f/0xc70 [ 399.052217] ? __handle_mm_fault+0x5be0/0x5be0 [ 399.056821] ? find_vma+0x34/0x190 [ 399.060371] __do_page_fault+0x5e8/0xe60 [ 399.064434] ? trace_hardirqs_off+0xb8/0x310 [ 399.068859] do_page_fault+0xf2/0x7e0 [ 399.072662] ? vmalloc_sync_all+0x30/0x30 [ 399.076814] ? error_entry+0x70/0xd0 [ 399.081015] ? trace_hardirqs_off_caller+0xbb/0x310 [ 399.086033] ? trace_hardirqs_on_caller+0xc0/0x310 [ 399.090967] ? syscall_return_slowpath+0x5e0/0x5e0 [ 399.095898] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 399.100749] ? trace_hardirqs_on_caller+0x310/0x310 [ 399.105766] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 399.111224] ? prepare_exit_to_usermode+0x291/0x3b0 [ 399.116252] ? page_fault+0x8/0x30 [ 399.119800] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 399.124659] ? page_fault+0x8/0x30 [ 399.128199] page_fault+0x1e/0x30 [ 399.131651] RIP: 0033:0x45ddf3 [ 399.134853] Code: Bad RIP value. [ 399.138217] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 399.143583] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 399.150851] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 399.158116] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 399.165395] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 399.172675] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 399.179972] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 399.179977] warn_alloc_show_mem: 1 callbacks suppressed [ 399.179984] Mem-Info: [ 399.187253] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 399.192632] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 399.192632] active_file:17 inactive_file:17 isolated_file:0 [ 399.192632] unevictable:0 dirty:4 writeback:0 unstable:0 [ 399.192632] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 399.192632] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 399.192632] free:13550 free_pcp:124 free_cma:0 [ 399.195006] Call Trace: [ 399.204412] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 399.237461] [ 399.240030] 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 [ 399.267777] dump_stack+0x244/0x39d [ 399.269914] lowmem_reserve[]: 0 2818 6321 6321 [ 399.296015] ? dump_stack_print_info.cold.1+0x20/0x20 [ 399.299611] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 399.304214] warn_alloc.cold.116+0xb7/0x1bd [ 399.309368] lowmem_reserve[]: 0 0 3503 3503 [ 399.336695] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 399.340989] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 399.345314] ? lock_downgrade+0x900/0x900 [ 399.350124] lowmem_reserve[]: 0 0 0 0 [ 399.379031] ? trace_hardirqs_off+0xb8/0x310 [ 399.383197] 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 [ 399.387023] ? trace_hardirqs_off+0xb8/0x310 [ 399.391433] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 399.404962] __alloc_pages_slowpath+0x2651/0x2de0 [ 399.409357] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 399.424103] ? warn_alloc+0x120/0x120 [ 399.428906] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 399.443637] ? print_usage_bug+0xc0/0xc0 [ 399.447443] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 399.456257] ? warn_alloc+0x120/0x120 [ 399.460293] 1360 total pagecache pages [ 399.468858] ? warn_alloc+0x120/0x120 [ 399.472638] 0 pages in swap cache [ 399.476506] ? print_usage_bug+0xc0/0xc0 [ 399.480282] Swap cache stats: add 0, delete 0, find 0/0 [ 399.483739] ? kvm_clock_read+0x18/0x30 [ 399.487771] Free swap = 0kB [ 399.493121] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 399.497076] Total swap = 0kB [ 399.500079] ? print_usage_bug+0xc0/0xc0 [ 399.505067] 1965979 pages RAM [ 399.508070] ? __lock_acquire+0x62f/0x4c20 [ 399.512099] 0 pages HighMem/MovableOnly [ 399.515240] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 399.519447] 342854 pages reserved [ 399.523414] ? should_fail+0x22d/0xd01 [ 399.528916] 0 pages cma reserved [ 399.532353] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 399.536296] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 399.539572] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 399.544908] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 399.551298] ? __lock_acquire+0x62f/0x4c20 [ 399.556374] syz-fuzzer cpuset=/ mems_allowed=0 [ 399.566625] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 399.580584] ? __lock_acquire+0x62f/0x4c20 [ 399.584810] ? should_fail+0x22d/0xd01 [ 399.588689] ? rcu_irq_exit+0x1a2/0x390 [ 399.592682] ? mark_held_locks+0x130/0x130 [ 399.596956] ? mark_held_locks+0x130/0x130 [ 399.601219] ? mark_held_locks+0xc7/0x130 [ 399.605409] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 399.610462] ? zap_class+0x640/0x640 [ 399.614171] ? print_usage_bug+0xc0/0xc0 [ 399.618229] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 399.623760] ? check_preemption_disabled+0x48/0x280 [ 399.628792] ? __lock_is_held+0xb5/0x140 [ 399.632859] __alloc_pages_nodemask+0xad8/0xea0 [ 399.637547] ? zap_class+0x640/0x640 [ 399.641257] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 399.646321] ? find_held_lock+0x36/0x1c0 [ 399.650384] ? ____cache_alloc_node+0x1c7/0x1e0 [ 399.655046] ? lock_downgrade+0x900/0x900 [ 399.659197] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 399.664763] cache_grow_begin+0xa5/0x8c0 [ 399.668853] ? do_raw_spin_unlock+0xa7/0x330 [ 399.673262] fallback_alloc+0x204/0x2e0 [ 399.677245] ____cache_alloc_node+0x1c7/0x1e0 [ 399.681742] kmem_cache_alloc_node+0xe3/0x730 [ 399.686251] ? ipv6_get_ifaddr+0x42e/0x620 [ 399.690496] __alloc_skb+0x119/0x770 [ 399.694208] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 399.699484] ? netdev_alloc_frag+0x1f0/0x1f0 [ 399.703920] ? lock_downgrade+0x900/0x900 [ 399.708071] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 399.713605] ? refcount_sub_and_test_checked+0x203/0x310 [ 399.719056] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 399.724505] ? addrconf_rs_timer+0x690/0x690 [ 399.728924] ndisc_alloc_skb+0x144/0x340 [ 399.732986] ndisc_send_rs+0x331/0x6e0 [ 399.736891] addrconf_rs_timer+0x314/0x690 [ 399.741136] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 399.745394] call_timer_fn+0x272/0x920 [ 399.749285] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 399.753532] ? process_timeout+0x40/0x40 [ 399.757643] ? __run_timers+0x7da/0xc70 [ 399.761631] ? _raw_spin_unlock_irq+0x27/0x80 [ 399.766141] ? _raw_spin_unlock_irq+0x27/0x80 [ 399.770635] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 399.774865] ? lockdep_hardirqs_on+0x296/0x5b0 [ 399.779442] ? trace_hardirqs_on+0xbd/0x310 [ 399.783757] ? kasan_check_read+0x11/0x20 [ 399.787895] ? __run_timers+0x7da/0xc70 [ 399.791863] ? trace_hardirqs_off_caller+0x310/0x310 [ 399.796973] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 399.801209] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 399.805435] __run_timers+0x7e5/0xc70 [ 399.809253] ? timer_fixup_init+0x70/0x70 [ 399.813397] ? kasan_check_read+0x11/0x20 [ 399.817544] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 399.822812] ? rcu_softirq_qs+0x20/0x20 [ 399.826778] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 399.832305] ? check_preemption_disabled+0x48/0x280 [ 399.837344] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 399.842094] ? retint_kernel+0x2d/0x2d [ 399.846001] ? trace_hardirqs_on_caller+0xc0/0x310 [ 399.850921] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 399.855673] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 399.861120] ? zap_class+0x640/0x640 [ 399.864855] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 399.870411] ? check_preemption_disabled+0x48/0x280 [ 399.875457] ? __lock_is_held+0xb5/0x140 [ 399.879541] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 399.885112] ? check_preemption_disabled+0x48/0x280 [ 399.890175] run_timer_softirq+0x52/0xb0 [ 399.894241] ? rcu_read_lock_sched_held+0x14f/0x180 [ 399.899258] __do_softirq+0x308/0xb7e [ 399.903060] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 399.907566] ? lock_downgrade+0x900/0x900 [ 399.911735] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 399.916849] ? pvclock_read_flags+0x160/0x160 [ 399.921373] ? lapic_next_event+0x5a/0x90 [ 399.925564] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 399.931104] ? kvm_clock_read+0x18/0x30 [ 399.935095] ? kvm_sched_clock_read+0x9/0x20 [ 399.939520] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 399.945070] ? check_preemption_disabled+0x48/0x280 [ 399.950094] irq_exit+0x17f/0x1c0 [ 399.953561] smp_apic_timer_interrupt+0x1cb/0x760 [ 399.958421] ? smp_reschedule_interrupt+0x109/0x650 [ 399.963451] ? smp_call_function_single_interrupt+0x650/0x650 [ 399.969334] ? interrupt_entry+0xb5/0xc0 [ 399.973395] ? trace_hardirqs_off_caller+0xbb/0x310 [ 399.978421] ? trace_hardirqs_off_caller+0xbb/0x310 [ 399.983436] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 399.988280] ? trace_hardirqs_on_caller+0x310/0x310 [ 399.993292] ? trace_hardirqs_on_caller+0x310/0x310 [ 399.998304] ? task_prio+0x50/0x50 [ 400.001853] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 400.007385] ? check_preemption_disabled+0x48/0x280 [ 400.012421] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 400.017268] apic_timer_interrupt+0xf/0x20 [ 400.021495] [ 400.023732] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 400.028683] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 400.047577] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 400.055283] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 400.062566] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 400.069840] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 400.077095] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 400.084354] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 400.092605] skb_clone+0x1bb/0x500 [ 400.096180] ? skb_split+0x11e0/0x11e0 [ 400.100082] ? preempt_notifier_register+0x200/0x200 [ 400.105176] ? __switch_to_asm+0x34/0x70 [ 400.109229] ? __switch_to_asm+0x34/0x70 [ 400.113282] ? __switch_to_asm+0x40/0x70 [ 400.117335] ? __switch_to_asm+0x34/0x70 [ 400.121396] ? __switch_to_asm+0x40/0x70 [ 400.125456] ? __switch_to_asm+0x40/0x70 [ 400.129541] ? __switch_to_asm+0x34/0x70 [ 400.133593] ? __switch_to_asm+0x34/0x70 [ 400.137660] ? __switch_to_asm+0x40/0x70 [ 400.141727] ? __switch_to_asm+0x34/0x70 [ 400.145785] bpf_clone_redirect+0xb9/0x490 [ 400.150020] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 400.155052] ? __sched_text_start+0x8/0x8 [ 400.159227] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 400.163988] ? find_held_lock+0x36/0x1c0 [ 400.168050] ? lock_acquire+0x1ed/0x520 [ 400.172019] ? bpf_test_run+0x3ee/0x7a0 [ 400.175989] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 400.181534] ? check_preemption_disabled+0x48/0x280 [ 400.186553] ? kasan_check_read+0x11/0x20 [ 400.190703] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 400.195983] ? rcu_softirq_qs+0x20/0x20 [ 400.199957] ? preempt_schedule+0x4d/0x60 [ 400.204104] ? ___preempt_schedule+0x16/0x18 [ 400.208524] ? bpf_test_run+0x271/0x7a0 [ 400.212504] ? netlink_diag_dump+0x2a0/0x2a0 [ 400.216911] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 400.222448] ? bpf_test_init.isra.10+0x70/0x100 [ 400.227113] ? bpf_prog_test_run_skb+0x762/0xd60 [ 400.231881] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 400.236733] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 400.242294] ? fput+0x130/0x1a0 [ 400.245571] ? __bpf_prog_get+0x9b/0x290 [ 400.249644] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 400.254480] ? bpf_prog_test_run+0x130/0x1a0 [ 400.258884] ? __x64_sys_bpf+0x3d8/0x520 [ 400.262954] ? bpf_prog_get+0x20/0x20 [ 400.266799] ? do_syscall_64+0x1b9/0x820 [ 400.270886] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 400.276249] ? syscall_return_slowpath+0x5e0/0x5e0 [ 400.281172] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 400.286019] ? trace_hardirqs_on_caller+0x310/0x310 [ 400.291028] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 400.296039] ? prepare_exit_to_usermode+0x291/0x3b0 [ 400.301053] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 400.305916] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 400.311291] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 400.311371] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 400.318221] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 400.324780] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 400.334028] Call Trace: [ 400.344490] syz-executor4 cpuset=syz4 mems_allowed=0 [ 400.347099] [ 400.354348] dump_stack+0x244/0x39d [ 400.357971] ? dump_stack_print_info.cold.1+0x20/0x20 [ 400.363172] warn_alloc.cold.116+0xb7/0x1bd [ 400.367497] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 400.372343] ? lock_downgrade+0x900/0x900 [ 400.376501] ? trace_hardirqs_off+0xb8/0x310 [ 400.380920] ? trace_hardirqs_off+0xb8/0x310 [ 400.385336] __alloc_pages_slowpath+0x2651/0x2de0 [ 400.390208] ? warn_alloc+0x120/0x120 [ 400.394010] ? print_usage_bug+0xc0/0xc0 [ 400.398076] ? warn_alloc+0x120/0x120 [ 400.401899] ? warn_alloc+0x120/0x120 [ 400.405708] ? print_usage_bug+0xc0/0xc0 [ 400.409771] ? kvm_clock_read+0x18/0x30 [ 400.413746] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 400.418765] ? print_usage_bug+0xc0/0xc0 [ 400.422844] ? __lock_acquire+0x62f/0x4c20 [ 400.427090] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 400.432642] ? should_fail+0x22d/0xd01 [ 400.436528] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 400.441805] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 400.446915] ? __lock_acquire+0x62f/0x4c20 [ 400.451159] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 400.456260] ? __lock_acquire+0x62f/0x4c20 [ 400.460496] ? should_fail+0x22d/0xd01 [ 400.464381] ? rcu_irq_exit+0x1a2/0x390 [ 400.468361] ? mark_held_locks+0x130/0x130 [ 400.472598] ? mark_held_locks+0x130/0x130 [ 400.476841] ? mark_held_locks+0xc7/0x130 [ 400.480987] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 400.485998] ? zap_class+0x640/0x640 [ 400.489706] ? print_usage_bug+0xc0/0xc0 [ 400.493794] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 400.499341] ? check_preemption_disabled+0x48/0x280 [ 400.504360] ? __lock_is_held+0xb5/0x140 [ 400.508421] __alloc_pages_nodemask+0xad8/0xea0 [ 400.513085] ? zap_class+0x640/0x640 [ 400.516795] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 400.521818] ? find_held_lock+0x36/0x1c0 [ 400.525907] ? ____cache_alloc_node+0x1c7/0x1e0 [ 400.530589] ? lock_downgrade+0x900/0x900 [ 400.534753] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 400.540290] cache_grow_begin+0xa5/0x8c0 [ 400.544354] ? do_raw_spin_unlock+0xa7/0x330 [ 400.548765] fallback_alloc+0x204/0x2e0 [ 400.552739] ____cache_alloc_node+0x1c7/0x1e0 [ 400.557233] kmem_cache_alloc_node+0xe3/0x730 [ 400.561721] ? ipv6_get_ifaddr+0x42e/0x620 [ 400.566003] __alloc_skb+0x119/0x770 [ 400.569726] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 400.574998] ? netdev_alloc_frag+0x1f0/0x1f0 [ 400.579501] ? lock_downgrade+0x900/0x900 [ 400.583685] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 400.589220] ? refcount_sub_and_test_checked+0x203/0x310 [ 400.594669] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 400.600127] ? addrconf_rs_timer+0x690/0x690 [ 400.604557] ndisc_alloc_skb+0x144/0x340 [ 400.608657] ndisc_send_rs+0x331/0x6e0 [ 400.612556] addrconf_rs_timer+0x314/0x690 [ 400.616792] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 400.621032] call_timer_fn+0x272/0x920 [ 400.624921] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 400.629156] ? process_timeout+0x40/0x40 [ 400.633225] ? mark_held_locks+0xc7/0x130 [ 400.637372] ? _raw_spin_unlock_irq+0x27/0x80 [ 400.641864] ? _raw_spin_unlock_irq+0x27/0x80 [ 400.646359] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 400.650590] ? lockdep_hardirqs_on+0x296/0x5b0 [ 400.655170] ? trace_hardirqs_on+0xbd/0x310 [ 400.659489] ? kasan_check_read+0x11/0x20 [ 400.663646] ? __run_timers+0x7da/0xc70 [ 400.667619] ? trace_hardirqs_off_caller+0x310/0x310 [ 400.672725] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 400.676963] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 400.681198] __run_timers+0x7e5/0xc70 [ 400.685012] ? timer_fixup_init+0x70/0x70 [ 400.689181] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 400.694198] ? zap_class+0x640/0x640 [ 400.697935] ? print_usage_bug+0xc0/0xc0 [ 400.702005] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 400.707205] ? find_held_lock+0x36/0x1c0 [ 400.711271] ? zap_class+0x640/0x640 [ 400.714990] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 400.720527] ? check_preemption_disabled+0x48/0x280 [ 400.725559] ? __lock_is_held+0xb5/0x140 [ 400.729667] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 400.735223] ? check_preemption_disabled+0x48/0x280 [ 400.740243] run_timer_softirq+0x52/0xb0 [ 400.744302] ? rcu_read_lock_sched_held+0x14f/0x180 [ 400.749318] __do_softirq+0x308/0xb7e [ 400.753120] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 400.757693] ? lock_downgrade+0x900/0x900 [ 400.761899] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 400.767018] ? pvclock_read_flags+0x160/0x160 [ 400.771514] ? lapic_next_event+0x5a/0x90 [ 400.775659] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 400.781198] ? kvm_clock_read+0x18/0x30 [ 400.785173] ? kvm_sched_clock_read+0x9/0x20 [ 400.789583] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 400.795117] ? check_preemption_disabled+0x48/0x280 [ 400.800150] irq_exit+0x17f/0x1c0 [ 400.803617] smp_apic_timer_interrupt+0x1cb/0x760 [ 400.808470] ? smp_reschedule_interrupt+0x109/0x650 [ 400.813481] ? smp_call_function_single_interrupt+0x650/0x650 [ 400.819362] ? interrupt_entry+0xb5/0xc0 [ 400.823420] ? trace_hardirqs_off_caller+0xbb/0x310 [ 400.828432] ? trace_hardirqs_off_caller+0xbb/0x310 [ 400.833445] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 400.838283] ? trace_hardirqs_on_caller+0x310/0x310 [ 400.843293] ? trace_hardirqs_on_caller+0x310/0x310 [ 400.848303] ? task_prio+0x50/0x50 [ 400.851840] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 400.857393] ? check_preemption_disabled+0x48/0x280 [ 400.862429] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 400.867321] apic_timer_interrupt+0xf/0x20 [ 400.871580] [ 400.873829] RIP: 0010:lock_acquire+0x268/0x520 [ 400.878422] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 400.897332] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 400.905049] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 400.912337] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 400.919597] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 400.926870] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 400.934137] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 400.941421] ? lruvec_lru_size+0x450/0x450 [ 400.945664] ? kasan_check_read+0x11/0x20 [ 400.949923] ? lock_release+0xa00/0xa00 [ 400.953920] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 400.958876] down_read_trylock+0xda/0x140 [ 400.963054] ? shrink_slab+0x207/0x8c0 [ 400.966937] ? downgrade_write+0x270/0x270 [ 400.971179] shrink_slab+0x207/0x8c0 [ 400.974933] ? shrink_active_list+0x1f00/0x1f00 [ 400.979616] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 400.985238] ? __lock_acquire+0x62f/0x4c20 [ 400.989472] ? percpu_ref_get_many+0x240/0x240 [ 400.994067] ? print_usage_bug+0xc0/0xc0 [ 400.998137] shrink_node+0x431/0x16b0 [ 401.001936] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 401.007252] ? shrink_node_memcg+0x18f0/0x18f0 [ 401.011856] ? kvm_clock_read+0x18/0x30 [ 401.015831] ? ktime_get+0x2c1/0x400 [ 401.019554] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 401.024053] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 401.029592] ? __cpuset_node_allowed+0x19b/0x660 [ 401.034346] ? mark_held_locks+0x130/0x130 [ 401.038583] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 401.044295] ? zap_class+0x640/0x640 [ 401.048016] do_try_to_free_pages+0x3e7/0x1290 [ 401.052605] ? zap_class+0x640/0x640 [ 401.056336] ? shrink_node+0x16b0/0x16b0 [ 401.060402] ? __lock_is_held+0xb5/0x140 [ 401.064480] try_to_free_pages+0x4d0/0xb90 [ 401.068719] ? do_try_to_free_pages+0x1290/0x1290 [ 401.073572] ? lock_acquire+0x1ed/0x520 [ 401.077573] ? set_page_refcounted+0x280/0x280 [ 401.082673] ? lock_release+0xa00/0xa00 [ 401.086649] ? _raw_spin_unlock_irq+0x60/0x80 [ 401.091155] ? psi_memstall_enter+0x240/0x2b0 [ 401.095652] ? psi_memstall_tick+0x230/0x230 [ 401.100071] __alloc_pages_slowpath+0xa48/0x2de0 [ 401.104853] ? warn_alloc+0x120/0x120 [ 401.108652] ? mark_held_locks+0x130/0x130 [ 401.112896] ? find_get_entry+0xaae/0x1120 [ 401.117156] ? filemap_map_pages+0x1a20/0x1a20 [ 401.121747] ? zap_class+0x640/0x640 [ 401.125465] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 401.131002] ? check_preemption_disabled+0x48/0x280 [ 401.136018] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 401.141554] ? should_fail+0x22d/0xd01 [ 401.145446] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 401.150568] ? zap_class+0x640/0x640 [ 401.154305] ? __lock_is_held+0xb5/0x140 [ 401.158373] ? mark_held_locks+0x130/0x130 [ 401.162612] ? lock_release+0xa00/0xa00 [ 401.166596] ? perf_trace_sched_process_exec+0x860/0x860 [ 401.172040] ? xa_load+0x2ba/0x460 [ 401.175572] ? lock_downgrade+0x900/0x900 [ 401.179743] ? __might_sleep+0x95/0x190 [ 401.183713] __alloc_pages_nodemask+0xad8/0xea0 [ 401.188385] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 401.193426] ? __page_cache_alloc+0x191/0x5c0 [ 401.197915] ? xa_load+0x2e1/0x460 [ 401.201451] ? xa_clear_mark+0x40/0x40 [ 401.205332] ? zap_class+0x640/0x640 [ 401.209058] ? zap_class+0x640/0x640 [ 401.212764] ? zap_class+0x640/0x640 [ 401.216489] ? __do_page_cache_readahead+0x663/0x810 [ 401.221593] ? find_held_lock+0x36/0x1c0 [ 401.225651] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 401.231208] alloc_pages_current+0x173/0x350 [ 401.235616] __page_cache_alloc+0x38c/0x5c0 [ 401.239931] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 401.244855] ? kasan_check_read+0x11/0x20 [ 401.248998] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 401.254272] ? generic_perform_write+0x6a0/0x6a0 [ 401.259023] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 401.264598] ? check_preemption_disabled+0x48/0x280 [ 401.269616] filemap_fault+0x1595/0x25f0 [ 401.273711] ? __lock_page_or_retry+0xa00/0xa00 [ 401.278377] ? mark_held_locks+0x130/0x130 [ 401.282631] ? filemap_map_pages+0xd6b/0x1a20 [ 401.287138] ? lock_downgrade+0x900/0x900 [ 401.291284] ? check_preemption_disabled+0x48/0x280 [ 401.296294] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 401.301233] ? kasan_check_read+0x11/0x20 [ 401.305447] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 401.310718] ? rcu_softirq_qs+0x20/0x20 [ 401.314723] ? filemap_map_pages+0xd92/0x1a20 [ 401.319225] ? find_get_entries_tag+0x1400/0x1400 [ 401.324063] ? debug_object_destroy+0x2b0/0x2b0 [ 401.328741] ? lock_pi_update_atomic+0x150/0x150 [ 401.333503] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 401.339086] ? lock_acquire+0x1ed/0x520 [ 401.343053] ? ext4_filemap_fault+0x7a/0xad [ 401.347400] ? lock_release+0xa00/0xa00 [ 401.351400] ? perf_trace_sched_process_exec+0x860/0x860 [ 401.356858] ? print_usage_bug+0xc0/0xc0 [ 401.360920] ? print_usage_bug+0xc0/0xc0 [ 401.365000] ? down_read+0x8d/0x120 [ 401.368618] ? ext4_filemap_fault+0x7a/0xad [ 401.372936] ? __down_interruptible+0x700/0x700 [ 401.377605] ext4_filemap_fault+0x82/0xad [ 401.381745] __do_fault+0x100/0x6b0 [ 401.385363] ? find_held_lock+0x36/0x1c0 [ 401.389425] ? pmd_devmap_trans_unstable+0x220/0x220 [ 401.394557] ? mark_held_locks+0x130/0x130 [ 401.398786] ? mark_held_locks+0x130/0x130 [ 401.403018] ? kasan_check_read+0x11/0x20 [ 401.407162] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 401.412698] __handle_mm_fault+0x3ea0/0x5be0 [ 401.417097] ? perf_trace_lock+0x7a0/0x7a0 [ 401.421330] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 401.426220] ? __switch_to_asm+0x34/0x70 [ 401.430276] ? __switch_to_asm+0x34/0x70 [ 401.434339] ? zap_class+0x640/0x640 [ 401.438046] ? zap_class+0x640/0x640 [ 401.441751] ? __x64_sys_futex+0x53e/0x6a0 [ 401.445983] ? find_held_lock+0x36/0x1c0 [ 401.450043] ? handle_mm_fault+0x42a/0xc70 [ 401.454288] ? lock_downgrade+0x900/0x900 [ 401.458433] ? check_preemption_disabled+0x48/0x280 [ 401.463443] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 401.468376] ? kasan_check_read+0x11/0x20 [ 401.472530] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 401.477821] ? rcu_softirq_qs+0x20/0x20 [ 401.481794] ? trace_hardirqs_off_caller+0x310/0x310 [ 401.486912] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 401.492443] ? sync_mm_rss+0x9a/0x1c0 [ 401.496261] handle_mm_fault+0x54f/0xc70 [ 401.500320] ? __handle_mm_fault+0x5be0/0x5be0 [ 401.504901] ? find_vma+0x34/0x190 [ 401.508463] __do_page_fault+0x5e8/0xe60 [ 401.512520] ? trace_hardirqs_off+0xb8/0x310 [ 401.516936] do_page_fault+0xf2/0x7e0 [ 401.520737] ? vmalloc_sync_all+0x30/0x30 [ 401.524906] ? error_entry+0x70/0xd0 [ 401.528613] ? trace_hardirqs_off_caller+0xbb/0x310 [ 401.533620] ? trace_hardirqs_on_caller+0xc0/0x310 [ 401.538548] ? syscall_return_slowpath+0x5e0/0x5e0 [ 401.543470] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 401.548308] ? trace_hardirqs_on_caller+0x310/0x310 [ 401.553323] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 401.558773] ? prepare_exit_to_usermode+0x291/0x3b0 [ 401.563782] ? page_fault+0x8/0x30 [ 401.567318] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 401.572164] ? page_fault+0x8/0x30 [ 401.575700] page_fault+0x1e/0x30 [ 401.579164] RIP: 0033:0x45ddf3 [ 401.582380] Code: Bad RIP value. [ 401.585766] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 401.591121] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 401.598407] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 401.605675] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 401.612949] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 401.620226] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 401.627513] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 401.627518] warn_alloc_show_mem: 1 callbacks suppressed [ 401.627524] Mem-Info: [ 401.634791] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 401.640157] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 401.640157] active_file:17 inactive_file:17 isolated_file:0 [ 401.640157] unevictable:0 dirty:4 writeback:0 unstable:0 [ 401.640157] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 401.640157] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 401.640157] free:13550 free_pcp:124 free_cma:0 [ 401.642526] Call Trace: [ 401.651935] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 401.684950] [ 401.687525] 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 [ 401.715306] dump_stack+0x244/0x39d [ 401.717435] lowmem_reserve[]: 0 2818 6321 6321 [ 401.743540] ? dump_stack_print_info.cold.1+0x20/0x20 [ 401.747146] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 401.751726] warn_alloc.cold.116+0xb7/0x1bd [ 401.756881] lowmem_reserve[]: 0 0 3503 3503 [ 401.784194] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 401.788485] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 401.792792] ? lock_downgrade+0x900/0x900 [ 401.797605] lowmem_reserve[]: 0 0 0 0 [ 401.826482] ? trace_hardirqs_off+0xb8/0x310 [ 401.830613] 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 [ 401.834400] ? trace_hardirqs_off+0xb8/0x310 [ 401.838787] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 401.852303] __alloc_pages_slowpath+0x2651/0x2de0 [ 401.856699] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 401.871450] ? warn_alloc+0x120/0x120 [ 401.876254] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 401.890990] ? print_usage_bug+0xc0/0xc0 [ 401.894782] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 401.903597] ? warn_alloc+0x120/0x120 [ 401.907665] 1360 total pagecache pages [ 401.916228] ? warn_alloc+0x120/0x120 [ 401.920008] 0 pages in swap cache [ 401.923887] ? print_usage_bug+0xc0/0xc0 [ 401.927681] Swap cache stats: add 0, delete 0, find 0/0 [ 401.931223] ? kvm_clock_read+0x18/0x30 [ 401.935259] Free swap = 0kB [ 401.940614] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 401.944559] Total swap = 0kB [ 401.947563] ? print_usage_bug+0xc0/0xc0 [ 401.952550] 1965979 pages RAM [ 401.955555] ? __lock_acquire+0x62f/0x4c20 [ 401.959611] 0 pages HighMem/MovableOnly [ 401.962742] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 401.966966] 342854 pages reserved [ 401.970936] ? should_fail+0x22d/0xd01 [ 401.976453] 0 pages cma reserved [ 401.979893] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 401.983836] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 401.987114] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 401.992455] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 401.998841] ? __lock_acquire+0x62f/0x4c20 [ 402.003937] syz-fuzzer cpuset=/ mems_allowed=0 [ 402.014157] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 402.028126] ? __lock_acquire+0x62f/0x4c20 [ 402.032369] ? should_fail+0x22d/0xd01 [ 402.036247] ? rcu_irq_exit+0x1a2/0x390 [ 402.040231] ? mark_held_locks+0x130/0x130 [ 402.044517] ? mark_held_locks+0x130/0x130 [ 402.048770] ? mark_held_locks+0xc7/0x130 [ 402.052920] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 402.057933] ? zap_class+0x640/0x640 [ 402.061647] ? print_usage_bug+0xc0/0xc0 [ 402.065761] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 402.071298] ? check_preemption_disabled+0x48/0x280 [ 402.076322] ? __lock_is_held+0xb5/0x140 [ 402.080389] __alloc_pages_nodemask+0xad8/0xea0 [ 402.085060] ? zap_class+0x640/0x640 [ 402.088777] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 402.093811] ? find_held_lock+0x36/0x1c0 [ 402.097881] ? ____cache_alloc_node+0x1c7/0x1e0 [ 402.102546] ? lock_downgrade+0x900/0x900 [ 402.106693] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 402.112246] cache_grow_begin+0xa5/0x8c0 [ 402.116345] ? do_raw_spin_unlock+0xa7/0x330 [ 402.120756] fallback_alloc+0x204/0x2e0 [ 402.124734] ____cache_alloc_node+0x1c7/0x1e0 [ 402.129227] kmem_cache_alloc_node+0xe3/0x730 [ 402.133751] ? ipv6_get_ifaddr+0x42e/0x620 [ 402.138012] __alloc_skb+0x119/0x770 [ 402.141717] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 402.146988] ? netdev_alloc_frag+0x1f0/0x1f0 [ 402.151414] ? lock_downgrade+0x900/0x900 [ 402.155561] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 402.161092] ? refcount_sub_and_test_checked+0x203/0x310 [ 402.166537] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 402.171982] ? addrconf_rs_timer+0x690/0x690 [ 402.176392] ndisc_alloc_skb+0x144/0x340 [ 402.180472] ndisc_send_rs+0x331/0x6e0 [ 402.184367] addrconf_rs_timer+0x314/0x690 [ 402.188615] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 402.192855] call_timer_fn+0x272/0x920 [ 402.196736] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 402.200973] ? process_timeout+0x40/0x40 [ 402.205030] ? __run_timers+0x7da/0xc70 [ 402.208997] ? _raw_spin_unlock_irq+0x27/0x80 [ 402.213486] ? _raw_spin_unlock_irq+0x27/0x80 [ 402.217992] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 402.222247] ? lockdep_hardirqs_on+0x296/0x5b0 [ 402.226866] ? trace_hardirqs_on+0xbd/0x310 [ 402.231182] ? kasan_check_read+0x11/0x20 [ 402.235322] ? __run_timers+0x7da/0xc70 [ 402.239290] ? trace_hardirqs_off_caller+0x310/0x310 [ 402.244392] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 402.248634] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 402.252867] __run_timers+0x7e5/0xc70 [ 402.256685] ? timer_fixup_init+0x70/0x70 [ 402.260832] ? kasan_check_read+0x11/0x20 [ 402.264974] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 402.270242] ? rcu_softirq_qs+0x20/0x20 [ 402.274214] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 402.279751] ? check_preemption_disabled+0x48/0x280 [ 402.284775] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 402.289528] ? retint_kernel+0x2d/0x2d [ 402.293418] ? trace_hardirqs_on_caller+0xc0/0x310 [ 402.298345] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 402.303101] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 402.308558] ? zap_class+0x640/0x640 [ 402.312269] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 402.317800] ? check_preemption_disabled+0x48/0x280 [ 402.322835] ? __lock_is_held+0xb5/0x140 [ 402.326892] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 402.332432] ? check_preemption_disabled+0x48/0x280 [ 402.337447] run_timer_softirq+0x52/0xb0 [ 402.341504] ? rcu_read_lock_sched_held+0x14f/0x180 [ 402.346529] __do_softirq+0x308/0xb7e [ 402.350338] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 402.354871] ? lock_downgrade+0x900/0x900 [ 402.359060] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 402.364188] ? pvclock_read_flags+0x160/0x160 [ 402.368687] ? lapic_next_event+0x5a/0x90 [ 402.372855] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 402.378416] ? kvm_clock_read+0x18/0x30 [ 402.382389] ? kvm_sched_clock_read+0x9/0x20 [ 402.386835] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 402.392384] ? check_preemption_disabled+0x48/0x280 [ 402.397431] irq_exit+0x17f/0x1c0 [ 402.400903] smp_apic_timer_interrupt+0x1cb/0x760 [ 402.405776] ? smp_reschedule_interrupt+0x109/0x650 [ 402.410791] ? smp_call_function_single_interrupt+0x650/0x650 [ 402.416698] ? interrupt_entry+0xb5/0xc0 [ 402.420764] ? trace_hardirqs_off_caller+0xbb/0x310 [ 402.425780] ? trace_hardirqs_off_caller+0xbb/0x310 [ 402.430794] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 402.435632] ? trace_hardirqs_on_caller+0x310/0x310 [ 402.440682] ? trace_hardirqs_on_caller+0x310/0x310 [ 402.445697] ? task_prio+0x50/0x50 [ 402.449285] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 402.454819] ? check_preemption_disabled+0x48/0x280 [ 402.459846] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 402.464697] apic_timer_interrupt+0xf/0x20 [ 402.468938] [ 402.471173] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 402.476100] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 402.495004] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 402.502707] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 402.509981] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 402.517273] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 402.524553] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 402.531817] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 402.539114] skb_clone+0x1bb/0x500 [ 402.542655] ? skb_split+0x11e0/0x11e0 [ 402.546569] ? preempt_notifier_register+0x200/0x200 [ 402.551678] ? __switch_to_asm+0x34/0x70 [ 402.555730] ? __switch_to_asm+0x34/0x70 [ 402.559783] ? __switch_to_asm+0x40/0x70 [ 402.563836] ? __switch_to_asm+0x34/0x70 [ 402.567909] ? __switch_to_asm+0x40/0x70 [ 402.571977] ? __switch_to_asm+0x40/0x70 [ 402.576027] ? __switch_to_asm+0x34/0x70 [ 402.580081] ? __switch_to_asm+0x34/0x70 [ 402.584139] ? __switch_to_asm+0x40/0x70 [ 402.588211] ? __switch_to_asm+0x34/0x70 [ 402.592275] bpf_clone_redirect+0xb9/0x490 [ 402.596514] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 402.601542] ? __sched_text_start+0x8/0x8 [ 402.605687] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 402.610479] ? find_held_lock+0x36/0x1c0 [ 402.614558] ? lock_acquire+0x1ed/0x520 [ 402.618526] ? bpf_test_run+0x3ee/0x7a0 [ 402.622531] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 402.628080] ? check_preemption_disabled+0x48/0x280 [ 402.633098] ? kasan_check_read+0x11/0x20 [ 402.637242] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 402.642542] ? rcu_softirq_qs+0x20/0x20 [ 402.646510] ? preempt_schedule+0x4d/0x60 [ 402.650694] ? ___preempt_schedule+0x16/0x18 [ 402.655106] ? bpf_test_run+0x271/0x7a0 [ 402.659092] ? netlink_diag_dump+0x2a0/0x2a0 [ 402.663528] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 402.669095] ? bpf_test_init.isra.10+0x70/0x100 [ 402.673770] ? bpf_prog_test_run_skb+0x762/0xd60 [ 402.678530] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 402.683375] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 402.688920] ? fput+0x130/0x1a0 [ 402.692224] ? __bpf_prog_get+0x9b/0x290 [ 402.696305] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 402.701169] ? bpf_prog_test_run+0x130/0x1a0 [ 402.705583] ? __x64_sys_bpf+0x3d8/0x520 [ 402.709646] ? bpf_prog_get+0x20/0x20 [ 402.713468] ? do_syscall_64+0x1b9/0x820 [ 402.717531] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 402.722896] ? syscall_return_slowpath+0x5e0/0x5e0 [ 402.727827] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 402.732671] ? trace_hardirqs_on_caller+0x310/0x310 [ 402.737688] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 402.742708] ? prepare_exit_to_usermode+0x291/0x3b0 [ 402.747739] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 402.752588] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 402.757969] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 402.758050] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 402.764918] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 402.764923] Call Trace: [ 402.764929] [ 402.764945] dump_stack+0x244/0x39d [ 402.764964] ? dump_stack_print_info.cold.1+0x20/0x20 [ 402.771523] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 402.780791] warn_alloc.cold.116+0xb7/0x1bd [ 402.783343] syz-executor4 cpuset=syz4 mems_allowed=0 [ 402.785487] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 402.818987] ? lock_downgrade+0x900/0x900 [ 402.823154] ? trace_hardirqs_off+0xb8/0x310 [ 402.827572] ? trace_hardirqs_off+0xb8/0x310 [ 402.831997] __alloc_pages_slowpath+0x2651/0x2de0 [ 402.836872] ? warn_alloc+0x120/0x120 [ 402.840680] ? print_usage_bug+0xc0/0xc0 [ 402.844757] ? warn_alloc+0x120/0x120 [ 402.848562] ? warn_alloc+0x120/0x120 [ 402.852376] ? print_usage_bug+0xc0/0xc0 [ 402.856433] ? kvm_clock_read+0x18/0x30 [ 402.860406] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 402.865441] ? print_usage_bug+0xc0/0xc0 [ 402.869536] ? __lock_acquire+0x62f/0x4c20 [ 402.873780] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 402.879324] ? should_fail+0x22d/0xd01 [ 402.883220] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 402.888499] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 402.893615] ? __lock_acquire+0x62f/0x4c20 [ 402.897892] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 402.902995] ? __lock_acquire+0x62f/0x4c20 [ 402.907223] ? should_fail+0x22d/0xd01 [ 402.911104] ? rcu_irq_exit+0x1a2/0x390 [ 402.915111] ? mark_held_locks+0x130/0x130 [ 402.919360] ? mark_held_locks+0x130/0x130 [ 402.923620] ? mark_held_locks+0xc7/0x130 [ 402.927772] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 402.932804] ? zap_class+0x640/0x640 [ 402.936519] ? print_usage_bug+0xc0/0xc0 [ 402.940583] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 402.946120] ? check_preemption_disabled+0x48/0x280 [ 402.951312] ? __lock_is_held+0xb5/0x140 [ 402.955378] __alloc_pages_nodemask+0xad8/0xea0 [ 402.960048] ? zap_class+0x640/0x640 [ 402.963766] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 402.968792] ? find_held_lock+0x36/0x1c0 [ 402.972867] ? ____cache_alloc_node+0x1c7/0x1e0 [ 402.977617] ? lock_downgrade+0x900/0x900 [ 402.981791] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 402.987344] cache_grow_begin+0xa5/0x8c0 [ 402.991416] ? do_raw_spin_unlock+0xa7/0x330 [ 402.995860] fallback_alloc+0x204/0x2e0 [ 402.999843] ____cache_alloc_node+0x1c7/0x1e0 [ 403.004352] kmem_cache_alloc_node+0xe3/0x730 [ 403.008850] ? ipv6_get_ifaddr+0x42e/0x620 [ 403.013094] __alloc_skb+0x119/0x770 [ 403.016808] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 403.022089] ? netdev_alloc_frag+0x1f0/0x1f0 [ 403.026495] ? lock_downgrade+0x900/0x900 [ 403.030651] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 403.036191] ? refcount_sub_and_test_checked+0x203/0x310 [ 403.041640] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 403.047084] ? addrconf_rs_timer+0x690/0x690 [ 403.051498] ndisc_alloc_skb+0x144/0x340 [ 403.055554] ndisc_send_rs+0x331/0x6e0 [ 403.059438] addrconf_rs_timer+0x314/0x690 [ 403.063671] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 403.067913] call_timer_fn+0x272/0x920 [ 403.071797] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 403.076025] ? process_timeout+0x40/0x40 [ 403.080607] ? mark_held_locks+0xc7/0x130 [ 403.084751] ? _raw_spin_unlock_irq+0x27/0x80 [ 403.089244] ? _raw_spin_unlock_irq+0x27/0x80 [ 403.093770] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 403.098005] ? lockdep_hardirqs_on+0x296/0x5b0 [ 403.102581] ? trace_hardirqs_on+0xbd/0x310 [ 403.106958] ? kasan_check_read+0x11/0x20 [ 403.111096] ? __run_timers+0x7da/0xc70 [ 403.115076] ? trace_hardirqs_off_caller+0x310/0x310 [ 403.120180] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 403.124416] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 403.128671] __run_timers+0x7e5/0xc70 [ 403.132476] ? timer_fixup_init+0x70/0x70 [ 403.136617] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 403.141645] ? zap_class+0x640/0x640 [ 403.145367] ? print_usage_bug+0xc0/0xc0 [ 403.149423] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 403.154628] ? find_held_lock+0x36/0x1c0 [ 403.158693] ? zap_class+0x640/0x640 [ 403.162422] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 403.167956] ? check_preemption_disabled+0x48/0x280 [ 403.172975] ? __lock_is_held+0xb5/0x140 [ 403.177046] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 403.182585] ? check_preemption_disabled+0x48/0x280 [ 403.187616] run_timer_softirq+0x52/0xb0 [ 403.191673] ? rcu_read_lock_sched_held+0x14f/0x180 [ 403.196689] __do_softirq+0x308/0xb7e [ 403.200489] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 403.204993] ? lock_downgrade+0x900/0x900 [ 403.209178] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 403.214283] ? pvclock_read_flags+0x160/0x160 [ 403.218775] ? lapic_next_event+0x5a/0x90 [ 403.222931] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 403.228467] ? kvm_clock_read+0x18/0x30 [ 403.232442] ? kvm_sched_clock_read+0x9/0x20 [ 403.236888] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 403.242441] ? check_preemption_disabled+0x48/0x280 [ 403.247478] irq_exit+0x17f/0x1c0 [ 403.250951] smp_apic_timer_interrupt+0x1cb/0x760 [ 403.255790] ? smp_reschedule_interrupt+0x109/0x650 [ 403.260831] ? smp_call_function_single_interrupt+0x650/0x650 [ 403.266711] ? interrupt_entry+0xb5/0xc0 [ 403.270785] ? trace_hardirqs_off_caller+0xbb/0x310 [ 403.275796] ? trace_hardirqs_off_caller+0xbb/0x310 [ 403.280809] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 403.285646] ? trace_hardirqs_on_caller+0x310/0x310 [ 403.290654] ? trace_hardirqs_on_caller+0x310/0x310 [ 403.295667] ? task_prio+0x50/0x50 [ 403.299204] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 403.304769] ? check_preemption_disabled+0x48/0x280 [ 403.309822] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 403.314664] apic_timer_interrupt+0xf/0x20 [ 403.318885] [ 403.321120] RIP: 0010:lock_acquire+0x268/0x520 [ 403.325705] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 403.344594] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 403.352296] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 403.359555] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 403.366815] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 403.374092] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 403.381355] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 403.388639] ? lruvec_lru_size+0x450/0x450 [ 403.392867] ? kasan_check_read+0x11/0x20 [ 403.397012] ? lock_release+0xa00/0xa00 [ 403.400983] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 403.405921] down_read_trylock+0xda/0x140 [ 403.410064] ? shrink_slab+0x207/0x8c0 [ 403.413963] ? downgrade_write+0x270/0x270 [ 403.418199] shrink_slab+0x207/0x8c0 [ 403.421924] ? shrink_active_list+0x1f00/0x1f00 [ 403.426626] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 403.432278] ? __lock_acquire+0x62f/0x4c20 [ 403.436514] ? percpu_ref_get_many+0x240/0x240 [ 403.441121] ? print_usage_bug+0xc0/0xc0 [ 403.445227] shrink_node+0x431/0x16b0 [ 403.449026] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 403.454327] ? shrink_node_memcg+0x18f0/0x18f0 [ 403.458915] ? kvm_clock_read+0x18/0x30 [ 403.462886] ? ktime_get+0x2c1/0x400 [ 403.466604] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 403.471101] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 403.476658] ? __cpuset_node_allowed+0x19b/0x660 [ 403.481412] ? mark_held_locks+0x130/0x130 [ 403.485646] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 403.491352] ? zap_class+0x640/0x640 [ 403.495070] do_try_to_free_pages+0x3e7/0x1290 [ 403.499645] ? zap_class+0x640/0x640 [ 403.503385] ? shrink_node+0x16b0/0x16b0 [ 403.507460] ? __lock_is_held+0xb5/0x140 [ 403.511545] try_to_free_pages+0x4d0/0xb90 [ 403.515795] ? do_try_to_free_pages+0x1290/0x1290 [ 403.520665] ? lock_acquire+0x1ed/0x520 [ 403.524638] ? set_page_refcounted+0x280/0x280 [ 403.529225] ? lock_release+0xa00/0xa00 [ 403.533196] ? _raw_spin_unlock_irq+0x60/0x80 [ 403.537689] ? psi_memstall_enter+0x240/0x2b0 [ 403.542189] ? psi_memstall_tick+0x230/0x230 [ 403.546620] __alloc_pages_slowpath+0xa48/0x2de0 [ 403.551398] ? warn_alloc+0x120/0x120 [ 403.555197] ? mark_held_locks+0x130/0x130 [ 403.559436] ? find_get_entry+0xaae/0x1120 [ 403.563707] ? filemap_map_pages+0x1a20/0x1a20 [ 403.568306] ? zap_class+0x640/0x640 [ 403.572023] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 403.577555] ? check_preemption_disabled+0x48/0x280 [ 403.582567] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 403.588100] ? should_fail+0x22d/0xd01 [ 403.592007] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 403.597108] ? zap_class+0x640/0x640 [ 403.600848] ? __lock_is_held+0xb5/0x140 [ 403.604930] ? mark_held_locks+0x130/0x130 [ 403.609180] ? lock_release+0xa00/0xa00 [ 403.613158] ? perf_trace_sched_process_exec+0x860/0x860 [ 403.618606] ? xa_load+0x2ba/0x460 [ 403.622179] ? lock_downgrade+0x900/0x900 [ 403.626329] ? __might_sleep+0x95/0x190 [ 403.630314] __alloc_pages_nodemask+0xad8/0xea0 [ 403.635007] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 403.640021] ? __page_cache_alloc+0x191/0x5c0 [ 403.644509] ? xa_load+0x2e1/0x460 [ 403.648050] ? xa_clear_mark+0x40/0x40 [ 403.651940] ? zap_class+0x640/0x640 [ 403.655655] ? zap_class+0x640/0x640 [ 403.659362] ? zap_class+0x640/0x640 [ 403.663074] ? __do_page_cache_readahead+0x663/0x810 [ 403.668212] ? find_held_lock+0x36/0x1c0 [ 403.672273] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 403.677833] alloc_pages_current+0x173/0x350 [ 403.682249] __page_cache_alloc+0x38c/0x5c0 [ 403.686579] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 403.691524] ? kasan_check_read+0x11/0x20 [ 403.695689] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 403.700981] ? generic_perform_write+0x6a0/0x6a0 [ 403.705735] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 403.711286] ? check_preemption_disabled+0x48/0x280 [ 403.716311] filemap_fault+0x1595/0x25f0 [ 403.720417] ? __lock_page_or_retry+0xa00/0xa00 [ 403.725088] ? mark_held_locks+0x130/0x130 [ 403.729324] ? filemap_map_pages+0xd6b/0x1a20 [ 403.733817] ? lock_downgrade+0x900/0x900 [ 403.737964] ? check_preemption_disabled+0x48/0x280 [ 403.742975] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 403.747937] ? kasan_check_read+0x11/0x20 [ 403.752082] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 403.757356] ? rcu_softirq_qs+0x20/0x20 [ 403.761336] ? filemap_map_pages+0xd92/0x1a20 [ 403.765840] ? find_get_entries_tag+0x1400/0x1400 [ 403.770697] ? debug_object_destroy+0x2b0/0x2b0 [ 403.775400] ? lock_pi_update_atomic+0x150/0x150 [ 403.780179] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 403.785722] ? lock_acquire+0x1ed/0x520 [ 403.789696] ? ext4_filemap_fault+0x7a/0xad [ 403.794025] ? lock_release+0xa00/0xa00 [ 403.797996] ? perf_trace_sched_process_exec+0x860/0x860 [ 403.803449] ? print_usage_bug+0xc0/0xc0 [ 403.807513] ? print_usage_bug+0xc0/0xc0 [ 403.811585] ? down_read+0x8d/0x120 [ 403.815210] ? ext4_filemap_fault+0x7a/0xad [ 403.819531] ? __down_interruptible+0x700/0x700 [ 403.824209] ext4_filemap_fault+0x82/0xad [ 403.828353] __do_fault+0x100/0x6b0 [ 403.831969] ? find_held_lock+0x36/0x1c0 [ 403.836026] ? pmd_devmap_trans_unstable+0x220/0x220 [ 403.841126] ? mark_held_locks+0x130/0x130 [ 403.845364] ? mark_held_locks+0x130/0x130 [ 403.849623] ? kasan_check_read+0x11/0x20 [ 403.853814] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 403.859369] __handle_mm_fault+0x3ea0/0x5be0 [ 403.863785] ? perf_trace_lock+0x7a0/0x7a0 [ 403.868024] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 403.872883] ? __switch_to_asm+0x34/0x70 [ 403.876957] ? __switch_to_asm+0x34/0x70 [ 403.881023] ? zap_class+0x640/0x640 [ 403.884749] ? zap_class+0x640/0x640 [ 403.888460] ? __x64_sys_futex+0x53e/0x6a0 [ 403.892696] ? find_held_lock+0x36/0x1c0 [ 403.896761] ? handle_mm_fault+0x42a/0xc70 [ 403.900994] ? lock_downgrade+0x900/0x900 [ 403.905144] ? check_preemption_disabled+0x48/0x280 [ 403.910178] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 403.915128] ? kasan_check_read+0x11/0x20 [ 403.919282] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 403.924644] ? rcu_softirq_qs+0x20/0x20 [ 403.928616] ? trace_hardirqs_off_caller+0x310/0x310 [ 403.933754] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 403.939290] ? sync_mm_rss+0x9a/0x1c0 [ 403.943094] handle_mm_fault+0x54f/0xc70 [ 403.947163] ? __handle_mm_fault+0x5be0/0x5be0 [ 403.951795] ? find_vma+0x34/0x190 [ 403.955357] __do_page_fault+0x5e8/0xe60 [ 403.959416] ? trace_hardirqs_off+0xb8/0x310 [ 403.963834] do_page_fault+0xf2/0x7e0 [ 403.967676] ? vmalloc_sync_all+0x30/0x30 [ 403.971824] ? error_entry+0x70/0xd0 [ 403.975537] ? trace_hardirqs_off_caller+0xbb/0x310 [ 403.980550] ? trace_hardirqs_on_caller+0xc0/0x310 [ 403.985510] ? syscall_return_slowpath+0x5e0/0x5e0 [ 403.990438] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 403.995330] ? trace_hardirqs_on_caller+0x310/0x310 [ 404.000339] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 404.005786] ? prepare_exit_to_usermode+0x291/0x3b0 [ 404.010794] ? page_fault+0x8/0x30 [ 404.014328] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 404.019199] ? page_fault+0x8/0x30 [ 404.022772] page_fault+0x1e/0x30 [ 404.026230] RIP: 0033:0x45ddf3 [ 404.029446] Code: Bad RIP value. [ 404.032829] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 404.038179] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 404.045453] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 404.052709] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 404.059965] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 404.067239] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 404.074524] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 404.074544] warn_alloc_show_mem: 1 callbacks suppressed [ 404.074550] Mem-Info: [ 404.081872] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 404.087281] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 404.087281] active_file:17 inactive_file:17 isolated_file:0 [ 404.087281] unevictable:0 dirty:4 writeback:0 unstable:0 [ 404.087281] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 404.087281] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 404.087281] free:13550 free_pcp:124 free_cma:0 [ 404.089653] Call Trace: [ 404.099072] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 404.132087] [ 404.134651] 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 [ 404.162396] dump_stack+0x244/0x39d [ 404.164516] lowmem_reserve[]: 0 2818 6321 6321 [ 404.190633] ? dump_stack_print_info.cold.1+0x20/0x20 [ 404.194232] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 404.198818] warn_alloc.cold.116+0xb7/0x1bd [ 404.203971] lowmem_reserve[]: 0 0 3503 3503 [ 404.231368] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 404.235659] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 404.239967] ? lock_downgrade+0x900/0x900 [ 404.244796] lowmem_reserve[]: 0 0 0 0 [ 404.273671] ? trace_hardirqs_off+0xb8/0x310 [ 404.277787] 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 [ 404.281603] ? trace_hardirqs_off+0xb8/0x310 [ 404.285981] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 404.299494] __alloc_pages_slowpath+0x2651/0x2de0 [ 404.303913] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 404.318676] ? warn_alloc+0x120/0x120 [ 404.323480] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 404.338198] ? print_usage_bug+0xc0/0xc0 [ 404.341972] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 404.350800] ? warn_alloc+0x120/0x120 [ 404.354848] 1360 total pagecache pages [ 404.363419] ? warn_alloc+0x120/0x120 [ 404.367203] 0 pages in swap cache [ 404.371081] ? print_usage_bug+0xc0/0xc0 [ 404.374869] Swap cache stats: add 0, delete 0, find 0/0 [ 404.378308] ? kvm_clock_read+0x18/0x30 [ 404.382335] Free swap = 0kB [ 404.387682] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 404.391629] Total swap = 0kB [ 404.394668] ? print_usage_bug+0xc0/0xc0 [ 404.399651] 1965979 pages RAM [ 404.402651] ? __lock_acquire+0x62f/0x4c20 [ 404.406679] 0 pages HighMem/MovableOnly [ 404.409771] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 404.413972] 342854 pages reserved [ 404.417951] ? should_fail+0x22d/0xd01 [ 404.423457] 0 pages cma reserved [ 404.426909] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 404.430933] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 404.434156] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 404.439475] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 404.445901] ? __lock_acquire+0x62f/0x4c20 [ 404.450978] syz-fuzzer cpuset=/ mems_allowed=0 [ 404.461189] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 404.475047] ? __lock_acquire+0x62f/0x4c20 [ 404.479323] ? should_fail+0x22d/0xd01 [ 404.483211] ? rcu_irq_exit+0x1a2/0x390 [ 404.487204] ? mark_held_locks+0x130/0x130 [ 404.491444] ? mark_held_locks+0x130/0x130 [ 404.495676] ? mark_held_locks+0xc7/0x130 [ 404.499815] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 404.504822] ? zap_class+0x640/0x640 [ 404.508527] ? print_usage_bug+0xc0/0xc0 [ 404.512610] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 404.518161] ? check_preemption_disabled+0x48/0x280 [ 404.523180] ? __lock_is_held+0xb5/0x140 [ 404.527255] __alloc_pages_nodemask+0xad8/0xea0 [ 404.531920] ? zap_class+0x640/0x640 [ 404.535631] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 404.540680] ? find_held_lock+0x36/0x1c0 [ 404.544777] ? ____cache_alloc_node+0x1c7/0x1e0 [ 404.549444] ? lock_downgrade+0x900/0x900 [ 404.553590] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 404.559123] cache_grow_begin+0xa5/0x8c0 [ 404.563186] ? do_raw_spin_unlock+0xa7/0x330 [ 404.567596] fallback_alloc+0x204/0x2e0 [ 404.571603] ____cache_alloc_node+0x1c7/0x1e0 [ 404.576096] kmem_cache_alloc_node+0xe3/0x730 [ 404.580598] ? ipv6_get_ifaddr+0x42e/0x620 [ 404.584840] __alloc_skb+0x119/0x770 [ 404.588546] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 404.593824] ? netdev_alloc_frag+0x1f0/0x1f0 [ 404.598225] ? lock_downgrade+0x900/0x900 [ 404.602411] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 404.607943] ? refcount_sub_and_test_checked+0x203/0x310 [ 404.613390] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 404.618843] ? addrconf_rs_timer+0x690/0x690 [ 404.623258] ndisc_alloc_skb+0x144/0x340 [ 404.627319] ndisc_send_rs+0x331/0x6e0 [ 404.631204] addrconf_rs_timer+0x314/0x690 [ 404.635456] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 404.639695] call_timer_fn+0x272/0x920 [ 404.643574] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 404.647815] ? process_timeout+0x40/0x40 [ 404.651875] ? __run_timers+0x7da/0xc70 [ 404.655846] ? _raw_spin_unlock_irq+0x27/0x80 [ 404.660332] ? _raw_spin_unlock_irq+0x27/0x80 [ 404.664845] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 404.669124] ? lockdep_hardirqs_on+0x296/0x5b0 [ 404.673727] ? trace_hardirqs_on+0xbd/0x310 [ 404.678045] ? kasan_check_read+0x11/0x20 [ 404.682192] ? __run_timers+0x7da/0xc70 [ 404.686184] ? trace_hardirqs_off_caller+0x310/0x310 [ 404.691295] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 404.695534] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 404.699768] __run_timers+0x7e5/0xc70 [ 404.703591] ? timer_fixup_init+0x70/0x70 [ 404.707735] ? kasan_check_read+0x11/0x20 [ 404.711879] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 404.717156] ? rcu_softirq_qs+0x20/0x20 [ 404.721127] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 404.726714] ? check_preemption_disabled+0x48/0x280 [ 404.731736] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 404.736490] ? retint_kernel+0x2d/0x2d [ 404.740373] ? trace_hardirqs_on_caller+0xc0/0x310 [ 404.745309] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 404.750064] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 404.755517] ? zap_class+0x640/0x640 [ 404.759237] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 404.764774] ? check_preemption_disabled+0x48/0x280 [ 404.769796] ? __lock_is_held+0xb5/0x140 [ 404.773868] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 404.779400] ? check_preemption_disabled+0x48/0x280 [ 404.784428] run_timer_softirq+0x52/0xb0 [ 404.788489] ? rcu_read_lock_sched_held+0x14f/0x180 [ 404.793502] __do_softirq+0x308/0xb7e [ 404.797328] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 404.801838] ? lock_downgrade+0x900/0x900 [ 404.806020] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 404.811123] ? pvclock_read_flags+0x160/0x160 [ 404.815622] ? lapic_next_event+0x5a/0x90 [ 404.819763] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 404.825300] ? kvm_clock_read+0x18/0x30 [ 404.829267] ? kvm_sched_clock_read+0x9/0x20 [ 404.833696] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 404.839249] ? check_preemption_disabled+0x48/0x280 [ 404.844313] irq_exit+0x17f/0x1c0 [ 404.847789] smp_apic_timer_interrupt+0x1cb/0x760 [ 404.852673] ? smp_reschedule_interrupt+0x109/0x650 [ 404.857701] ? smp_call_function_single_interrupt+0x650/0x650 [ 404.863578] ? interrupt_entry+0xb5/0xc0 [ 404.867687] ? trace_hardirqs_off_caller+0xbb/0x310 [ 404.872711] ? trace_hardirqs_off_caller+0xbb/0x310 [ 404.877721] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 404.882560] ? trace_hardirqs_on_caller+0x310/0x310 [ 404.887596] ? trace_hardirqs_on_caller+0x310/0x310 [ 404.892614] ? task_prio+0x50/0x50 [ 404.896183] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 404.901725] ? check_preemption_disabled+0x48/0x280 [ 404.906762] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 404.911621] apic_timer_interrupt+0xf/0x20 [ 404.915848] [ 404.918098] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 404.923031] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 404.941950] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 404.949848] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 404.957117] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 404.964393] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 404.971662] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 404.978928] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 404.986236] skb_clone+0x1bb/0x500 [ 404.989800] ? skb_split+0x11e0/0x11e0 [ 404.993686] ? preempt_notifier_register+0x200/0x200 [ 404.998783] ? __switch_to_asm+0x34/0x70 [ 405.002839] ? __switch_to_asm+0x34/0x70 [ 405.006899] ? __switch_to_asm+0x40/0x70 [ 405.010955] ? __switch_to_asm+0x34/0x70 [ 405.015008] ? __switch_to_asm+0x40/0x70 [ 405.019063] ? __switch_to_asm+0x40/0x70 [ 405.023167] ? __switch_to_asm+0x34/0x70 [ 405.027242] ? __switch_to_asm+0x34/0x70 [ 405.031340] ? __switch_to_asm+0x40/0x70 [ 405.035398] ? __switch_to_asm+0x34/0x70 [ 405.039464] bpf_clone_redirect+0xb9/0x490 [ 405.043707] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 405.048723] ? __sched_text_start+0x8/0x8 [ 405.052899] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 405.057692] ? find_held_lock+0x36/0x1c0 [ 405.061785] ? lock_acquire+0x1ed/0x520 [ 405.065756] ? bpf_test_run+0x3ee/0x7a0 [ 405.069724] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 405.075253] ? check_preemption_disabled+0x48/0x280 [ 405.080387] ? kasan_check_read+0x11/0x20 [ 405.084542] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 405.089821] ? rcu_softirq_qs+0x20/0x20 [ 405.093799] ? preempt_schedule+0x4d/0x60 [ 405.097953] ? ___preempt_schedule+0x16/0x18 [ 405.102369] ? bpf_test_run+0x271/0x7a0 [ 405.106359] ? netlink_diag_dump+0x2a0/0x2a0 [ 405.110788] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 405.116345] ? bpf_test_init.isra.10+0x70/0x100 [ 405.121019] ? bpf_prog_test_run_skb+0x762/0xd60 [ 405.125781] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 405.130659] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 405.136197] ? fput+0x130/0x1a0 [ 405.139481] ? __bpf_prog_get+0x9b/0x290 [ 405.143542] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 405.148401] ? bpf_prog_test_run+0x130/0x1a0 [ 405.152862] ? __x64_sys_bpf+0x3d8/0x520 [ 405.156919] ? bpf_prog_get+0x20/0x20 [ 405.160737] ? do_syscall_64+0x1b9/0x820 [ 405.164828] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 405.170218] ? syscall_return_slowpath+0x5e0/0x5e0 [ 405.175155] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 405.179999] ? trace_hardirqs_on_caller+0x310/0x310 [ 405.185011] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 405.190024] ? prepare_exit_to_usermode+0x291/0x3b0 [ 405.195044] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 405.199893] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 405.205272] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 405.205352] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 405.212207] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 405.212212] Call Trace: [ 405.212217] [ 405.212232] dump_stack+0x244/0x39d [ 405.212252] ? dump_stack_print_info.cold.1+0x20/0x20 [ 405.218796] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 405.228075] warn_alloc.cold.116+0xb7/0x1bd [ 405.230627] syz-executor4 cpuset=syz4 mems_allowed=0 [ 405.232771] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 405.266270] ? lock_downgrade+0x900/0x900 [ 405.270425] ? trace_hardirqs_off+0xb8/0x310 [ 405.274842] ? trace_hardirqs_off+0xb8/0x310 [ 405.279276] __alloc_pages_slowpath+0x2651/0x2de0 [ 405.284156] ? warn_alloc+0x120/0x120 [ 405.287956] ? print_usage_bug+0xc0/0xc0 [ 405.292014] ? warn_alloc+0x120/0x120 [ 405.295824] ? warn_alloc+0x120/0x120 [ 405.299631] ? print_usage_bug+0xc0/0xc0 [ 405.303725] ? print_usage_bug+0xc0/0xc0 [ 405.307800] ? __lock_acquire+0x62f/0x4c20 [ 405.312035] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 405.317569] ? should_fail+0x22d/0xd01 [ 405.321458] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 405.326564] ? __lock_acquire+0x62f/0x4c20 [ 405.330796] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 405.335922] ? __lock_acquire+0x62f/0x4c20 [ 405.340165] ? should_fail+0x22d/0xd01 [ 405.344058] ? find_held_lock+0x36/0x1c0 [ 405.348114] ? mark_held_locks+0x130/0x130 [ 405.352431] ? mark_held_locks+0x130/0x130 [ 405.356691] ? zap_class+0x640/0x640 [ 405.360412] ? zap_class+0x640/0x640 [ 405.364122] ? print_usage_bug+0xc0/0xc0 [ 405.368194] ? do_raw_spin_unlock+0xa7/0x330 [ 405.372596] ? zap_class+0x640/0x640 [ 405.376324] ? print_usage_bug+0xc0/0xc0 [ 405.380392] ? wq_watchdog_touch+0x9c/0xfe [ 405.384627] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 405.390174] ? check_preemption_disabled+0x48/0x280 [ 405.395196] ? __lock_is_held+0xb5/0x140 [ 405.399258] __alloc_pages_nodemask+0xad8/0xea0 [ 405.403925] ? zap_class+0x640/0x640 [ 405.407639] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 405.412667] ? find_held_lock+0x36/0x1c0 [ 405.416763] ? ____cache_alloc_node+0x1c7/0x1e0 [ 405.421440] ? lock_downgrade+0x900/0x900 [ 405.425586] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 405.431149] cache_grow_begin+0xa5/0x8c0 [ 405.435203] ? do_raw_spin_unlock+0xa7/0x330 [ 405.439624] fallback_alloc+0x204/0x2e0 [ 405.443605] ____cache_alloc_node+0x1c7/0x1e0 [ 405.448115] kmem_cache_alloc_node+0xe3/0x730 [ 405.452659] ? ipv6_get_ifaddr+0x42e/0x620 [ 405.456893] __alloc_skb+0x119/0x770 [ 405.460613] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 405.465918] ? netdev_alloc_frag+0x1f0/0x1f0 [ 405.470335] ? lock_downgrade+0x900/0x900 [ 405.474495] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 405.480057] ? refcount_sub_and_test_checked+0x203/0x310 [ 405.485515] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 405.490979] ? addrconf_rs_timer+0x690/0x690 [ 405.495407] ndisc_alloc_skb+0x144/0x340 [ 405.499467] ndisc_send_rs+0x331/0x6e0 [ 405.503355] addrconf_rs_timer+0x314/0x690 [ 405.507588] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 405.511823] call_timer_fn+0x272/0x920 [ 405.515759] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 405.519987] ? process_timeout+0x40/0x40 [ 405.524052] ? mark_held_locks+0xc7/0x130 [ 405.528195] ? _raw_spin_unlock_irq+0x27/0x80 [ 405.532685] ? _raw_spin_unlock_irq+0x27/0x80 [ 405.537189] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 405.541451] ? lockdep_hardirqs_on+0x296/0x5b0 [ 405.546028] ? trace_hardirqs_on+0xbd/0x310 [ 405.550365] ? kasan_check_read+0x11/0x20 [ 405.554530] ? __run_timers+0x7da/0xc70 [ 405.558503] ? trace_hardirqs_off_caller+0x310/0x310 [ 405.563618] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 405.567896] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 405.572131] __run_timers+0x7e5/0xc70 [ 405.575961] ? timer_fixup_init+0x70/0x70 [ 405.580108] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 405.585171] ? zap_class+0x640/0x640 [ 405.588898] ? print_usage_bug+0xc0/0xc0 [ 405.592965] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 405.598194] ? find_held_lock+0x36/0x1c0 [ 405.602289] ? zap_class+0x640/0x640 [ 405.606004] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 405.611540] ? check_preemption_disabled+0x48/0x280 [ 405.616564] ? __lock_is_held+0xb5/0x140 [ 405.620649] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 405.626207] ? check_preemption_disabled+0x48/0x280 [ 405.631232] run_timer_softirq+0x52/0xb0 [ 405.635305] ? rcu_read_lock_sched_held+0x14f/0x180 [ 405.640326] __do_softirq+0x308/0xb7e [ 405.644130] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 405.648646] ? lock_downgrade+0x900/0x900 [ 405.652799] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 405.657940] ? pvclock_read_flags+0x160/0x160 [ 405.662436] ? lapic_next_event+0x5a/0x90 [ 405.666605] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 405.672158] ? kvm_clock_read+0x18/0x30 [ 405.676144] ? kvm_sched_clock_read+0x9/0x20 [ 405.680569] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 405.686156] ? check_preemption_disabled+0x48/0x280 [ 405.691237] irq_exit+0x17f/0x1c0 [ 405.694696] smp_apic_timer_interrupt+0x1cb/0x760 [ 405.699541] ? smp_reschedule_interrupt+0x109/0x650 [ 405.704563] ? smp_call_function_single_interrupt+0x650/0x650 [ 405.710450] ? interrupt_entry+0xb5/0xc0 [ 405.714512] ? trace_hardirqs_off_caller+0xbb/0x310 [ 405.719526] ? trace_hardirqs_off_caller+0xbb/0x310 [ 405.724546] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 405.729407] ? trace_hardirqs_on_caller+0x310/0x310 [ 405.734425] ? trace_hardirqs_on_caller+0x310/0x310 [ 405.739448] ? task_prio+0x50/0x50 [ 405.742993] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 405.748535] ? check_preemption_disabled+0x48/0x280 [ 405.753562] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 405.758413] apic_timer_interrupt+0xf/0x20 [ 405.762654] [ 405.764930] RIP: 0010:lock_acquire+0x268/0x520 [ 405.769517] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 405.788413] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 405.796118] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 405.803394] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 405.810660] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 405.817950] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 405.825220] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 405.832513] ? lruvec_lru_size+0x450/0x450 [ 405.836766] ? kasan_check_read+0x11/0x20 [ 405.840926] ? lock_release+0xa00/0xa00 [ 405.844920] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 405.849859] down_read_trylock+0xda/0x140 [ 405.854008] ? shrink_slab+0x207/0x8c0 [ 405.857898] ? downgrade_write+0x270/0x270 [ 405.862160] shrink_slab+0x207/0x8c0 [ 405.865876] ? shrink_active_list+0x1f00/0x1f00 [ 405.870591] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 405.876232] ? __lock_acquire+0x62f/0x4c20 [ 405.880503] ? percpu_ref_get_many+0x240/0x240 [ 405.885104] ? print_usage_bug+0xc0/0xc0 [ 405.889181] shrink_node+0x431/0x16b0 [ 405.892985] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 405.898303] ? shrink_node_memcg+0x18f0/0x18f0 [ 405.902927] ? kvm_clock_read+0x18/0x30 [ 405.906923] ? ktime_get+0x2c1/0x400 [ 405.910642] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 405.915147] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 405.920687] ? __cpuset_node_allowed+0x19b/0x660 [ 405.925446] ? mark_held_locks+0x130/0x130 [ 405.929685] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 405.935400] ? zap_class+0x640/0x640 [ 405.939120] do_try_to_free_pages+0x3e7/0x1290 [ 405.943708] ? zap_class+0x640/0x640 [ 405.947438] ? shrink_node+0x16b0/0x16b0 [ 405.951506] ? __lock_is_held+0xb5/0x140 [ 405.955581] try_to_free_pages+0x4d0/0xb90 [ 405.959822] ? do_try_to_free_pages+0x1290/0x1290 [ 405.964679] ? lock_acquire+0x1ed/0x520 [ 405.968653] ? set_page_refcounted+0x280/0x280 [ 405.973244] ? lock_release+0xa00/0xa00 [ 405.977219] ? _raw_spin_unlock_irq+0x60/0x80 [ 405.981715] ? psi_memstall_enter+0x240/0x2b0 [ 405.986210] ? psi_memstall_tick+0x230/0x230 [ 405.990630] __alloc_pages_slowpath+0xa48/0x2de0 [ 405.995417] ? warn_alloc+0x120/0x120 [ 405.999220] ? mark_held_locks+0x130/0x130 [ 406.003461] ? find_get_entry+0xaae/0x1120 [ 406.007705] ? filemap_map_pages+0x1a20/0x1a20 [ 406.012297] ? zap_class+0x640/0x640 [ 406.016029] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 406.021567] ? check_preemption_disabled+0x48/0x280 [ 406.026582] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 406.032147] ? should_fail+0x22d/0xd01 [ 406.036043] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 406.041157] ? zap_class+0x640/0x640 [ 406.044895] ? __lock_is_held+0xb5/0x140 [ 406.048971] ? mark_held_locks+0x130/0x130 [ 406.053205] ? lock_release+0xa00/0xa00 [ 406.057175] ? perf_trace_sched_process_exec+0x860/0x860 [ 406.062618] ? xa_load+0x2ba/0x460 [ 406.066171] ? lock_downgrade+0x900/0x900 [ 406.070344] ? __might_sleep+0x95/0x190 [ 406.074327] __alloc_pages_nodemask+0xad8/0xea0 [ 406.079006] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 406.084013] ? __page_cache_alloc+0x191/0x5c0 [ 406.088505] ? xa_load+0x2e1/0x460 [ 406.092058] ? xa_clear_mark+0x40/0x40 [ 406.095944] ? zap_class+0x640/0x640 [ 406.099677] ? zap_class+0x640/0x640 [ 406.103386] ? zap_class+0x640/0x640 [ 406.107093] ? __do_page_cache_readahead+0x663/0x810 [ 406.112196] ? find_held_lock+0x36/0x1c0 [ 406.116279] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 406.121856] alloc_pages_current+0x173/0x350 [ 406.126269] __page_cache_alloc+0x38c/0x5c0 [ 406.130605] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 406.135525] ? kasan_check_read+0x11/0x20 [ 406.139667] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 406.144968] ? generic_perform_write+0x6a0/0x6a0 [ 406.149727] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 406.155257] ? check_preemption_disabled+0x48/0x280 [ 406.160282] filemap_fault+0x1595/0x25f0 [ 406.164353] ? __lock_page_or_retry+0xa00/0xa00 [ 406.169015] ? mark_held_locks+0x130/0x130 [ 406.173271] ? filemap_map_pages+0xd6b/0x1a20 [ 406.177794] ? lock_downgrade+0x900/0x900 [ 406.181935] ? check_preemption_disabled+0x48/0x280 [ 406.186948] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 406.191887] ? kasan_check_read+0x11/0x20 [ 406.196033] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 406.201303] ? rcu_softirq_qs+0x20/0x20 [ 406.205314] ? filemap_map_pages+0xd92/0x1a20 [ 406.209814] ? find_get_entries_tag+0x1400/0x1400 [ 406.214684] ? debug_object_destroy+0x2b0/0x2b0 [ 406.219349] ? lock_pi_update_atomic+0x150/0x150 [ 406.224102] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 406.229670] ? lock_acquire+0x1ed/0x520 [ 406.233672] ? ext4_filemap_fault+0x7a/0xad [ 406.237996] ? lock_release+0xa00/0xa00 [ 406.241971] ? perf_trace_sched_process_exec+0x860/0x860 [ 406.247453] ? print_usage_bug+0xc0/0xc0 [ 406.251529] ? print_usage_bug+0xc0/0xc0 [ 406.255614] ? down_read+0x8d/0x120 [ 406.259236] ? ext4_filemap_fault+0x7a/0xad [ 406.263569] ? __down_interruptible+0x700/0x700 [ 406.268243] ext4_filemap_fault+0x82/0xad [ 406.272422] __do_fault+0x100/0x6b0 [ 406.276044] ? find_held_lock+0x36/0x1c0 [ 406.280116] ? pmd_devmap_trans_unstable+0x220/0x220 [ 406.285244] ? mark_held_locks+0x130/0x130 [ 406.289476] ? mark_held_locks+0x130/0x130 [ 406.293709] ? kasan_check_read+0x11/0x20 [ 406.297864] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 406.303420] __handle_mm_fault+0x3ea0/0x5be0 [ 406.307832] ? perf_trace_lock+0x7a0/0x7a0 [ 406.312069] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 406.316917] ? __switch_to_asm+0x34/0x70 [ 406.320970] ? __switch_to_asm+0x34/0x70 [ 406.325035] ? zap_class+0x640/0x640 [ 406.328740] ? zap_class+0x640/0x640 [ 406.332445] ? __x64_sys_futex+0x53e/0x6a0 [ 406.336691] ? find_held_lock+0x36/0x1c0 [ 406.340750] ? handle_mm_fault+0x42a/0xc70 [ 406.344990] ? lock_downgrade+0x900/0x900 [ 406.349177] ? check_preemption_disabled+0x48/0x280 [ 406.354202] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 406.359120] ? kasan_check_read+0x11/0x20 [ 406.363266] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 406.368535] ? rcu_softirq_qs+0x20/0x20 [ 406.372503] ? trace_hardirqs_off_caller+0x310/0x310 [ 406.377616] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 406.383180] ? sync_mm_rss+0x9a/0x1c0 [ 406.386976] handle_mm_fault+0x54f/0xc70 [ 406.391032] ? __handle_mm_fault+0x5be0/0x5be0 [ 406.395614] ? find_vma+0x34/0x190 [ 406.399160] __do_page_fault+0x5e8/0xe60 [ 406.403214] ? trace_hardirqs_off+0xb8/0x310 [ 406.407624] do_page_fault+0xf2/0x7e0 [ 406.411422] ? vmalloc_sync_all+0x30/0x30 [ 406.415569] ? error_entry+0x70/0xd0 [ 406.419305] ? trace_hardirqs_off_caller+0xbb/0x310 [ 406.424314] ? trace_hardirqs_on_caller+0xc0/0x310 [ 406.429237] ? syscall_return_slowpath+0x5e0/0x5e0 [ 406.434163] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 406.438997] ? trace_hardirqs_on_caller+0x310/0x310 [ 406.444018] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 406.449467] ? prepare_exit_to_usermode+0x291/0x3b0 [ 406.454510] ? page_fault+0x8/0x30 [ 406.458060] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 406.462895] ? page_fault+0x8/0x30 [ 406.466432] page_fault+0x1e/0x30 [ 406.469893] RIP: 0033:0x45ddf3 [ 406.473121] Code: Bad RIP value. [ 406.476514] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 406.481883] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 406.489168] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 406.496431] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 406.503691] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 406.510955] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 406.518246] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 406.518251] warn_alloc_show_mem: 1 callbacks suppressed [ 406.518258] Mem-Info: [ 406.525529] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 406.530891] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 406.530891] active_file:17 inactive_file:17 isolated_file:0 [ 406.530891] unevictable:0 dirty:4 writeback:0 unstable:0 [ 406.530891] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 406.530891] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 406.530891] free:13550 free_pcp:124 free_cma:0 [ 406.533259] Call Trace: [ 406.542641] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 406.575653] [ 406.578219] 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 [ 406.605964] dump_stack+0x244/0x39d [ 406.608081] lowmem_reserve[]: 0 2818 6321 6321 [ 406.634177] ? dump_stack_print_info.cold.1+0x20/0x20 [ 406.637788] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 406.642377] warn_alloc.cold.116+0xb7/0x1bd [ 406.647533] lowmem_reserve[]: 0 0 3503 3503 [ 406.674876] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 406.679173] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 406.683485] ? lock_downgrade+0x900/0x900 [ 406.688297] lowmem_reserve[]: 0 0 0 0 [ 406.717176] ? trace_hardirqs_off+0xb8/0x310 [ 406.721297] 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 [ 406.725087] ? trace_hardirqs_off+0xb8/0x310 [ 406.729467] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 406.742982] __alloc_pages_slowpath+0x2651/0x2de0 [ 406.747361] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 406.762103] ? warn_alloc+0x120/0x120 [ 406.766918] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 406.781636] ? print_usage_bug+0xc0/0xc0 [ 406.785432] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 406.794249] ? warn_alloc+0x120/0x120 [ 406.798317] 1360 total pagecache pages [ 406.806898] ? warn_alloc+0x120/0x120 [ 406.810700] 0 pages in swap cache [ 406.814591] ? print_usage_bug+0xc0/0xc0 [ 406.818393] Swap cache stats: add 0, delete 0, find 0/0 [ 406.821834] ? print_usage_bug+0xc0/0xc0 [ 406.825884] Free swap = 0kB [ 406.831244] ? __lock_acquire+0x62f/0x4c20 [ 406.835278] Total swap = 0kB [ 406.838301] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 406.842522] 1965979 pages RAM [ 406.845529] ? should_fail+0x22d/0xd01 [ 406.851033] 0 pages HighMem/MovableOnly [ 406.854126] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 406.858006] 342854 pages reserved [ 406.861983] ? __lock_acquire+0x62f/0x4c20 [ 406.867060] 0 pages cma reserved [ 406.870503] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 406.874809] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 406.878085] ? __lock_acquire+0x62f/0x4c20 [ 406.878099] ? should_fail+0x22d/0xd01 [ 406.883282] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 406.889697] ? mark_held_locks+0x130/0x130 [ 406.893920] syz-fuzzer cpuset=/ mems_allowed=0 [ 406.897794] ? mark_held_locks+0x130/0x130 [ 406.921018] ? zap_class+0x640/0x640 [ 406.924735] ? zap_class+0x640/0x640 [ 406.928458] ? print_usage_bug+0xc0/0xc0 [ 406.932525] ? wq_watchdog_touch+0x9c/0xfe [ 406.936784] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 406.942320] ? check_preemption_disabled+0x48/0x280 [ 406.947344] ? __lock_is_held+0xb5/0x140 [ 406.951588] __alloc_pages_nodemask+0xad8/0xea0 [ 406.956252] ? zap_class+0x640/0x640 [ 406.959979] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 406.965004] ? find_held_lock+0x36/0x1c0 [ 406.969069] ? ____cache_alloc_node+0x1c7/0x1e0 [ 406.973767] ? lock_downgrade+0x900/0x900 [ 406.977930] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 406.983469] cache_grow_begin+0xa5/0x8c0 [ 406.987526] ? do_raw_spin_unlock+0xa7/0x330 [ 406.991958] fallback_alloc+0x204/0x2e0 [ 406.995928] ____cache_alloc_node+0x1c7/0x1e0 [ 407.000433] kmem_cache_alloc_node+0xe3/0x730 [ 407.004941] ? ipv6_get_ifaddr+0x42e/0x620 [ 407.009182] __alloc_skb+0x119/0x770 [ 407.012906] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 407.018224] ? netdev_alloc_frag+0x1f0/0x1f0 [ 407.022626] ? lock_downgrade+0x900/0x900 [ 407.026775] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 407.032307] ? refcount_sub_and_test_checked+0x203/0x310 [ 407.037752] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 407.043214] ? addrconf_rs_timer+0x690/0x690 [ 407.047631] ndisc_alloc_skb+0x144/0x340 [ 407.051703] ndisc_send_rs+0x331/0x6e0 [ 407.055597] addrconf_rs_timer+0x314/0x690 [ 407.059857] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 407.064100] call_timer_fn+0x272/0x920 [ 407.068007] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 407.072257] ? process_timeout+0x40/0x40 [ 407.076335] ? __run_timers+0x7da/0xc70 [ 407.080497] ? _raw_spin_unlock_irq+0x27/0x80 [ 407.084997] ? _raw_spin_unlock_irq+0x27/0x80 [ 407.089495] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 407.093731] ? lockdep_hardirqs_on+0x296/0x5b0 [ 407.098318] ? trace_hardirqs_on+0xbd/0x310 [ 407.102656] ? kasan_check_read+0x11/0x20 [ 407.106806] ? __run_timers+0x7da/0xc70 [ 407.110797] ? trace_hardirqs_off_caller+0x310/0x310 [ 407.115930] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 407.120172] __run_timers+0x7e5/0xc70 [ 407.123986] ? timer_fixup_init+0x70/0x70 [ 407.128145] ? kasan_check_read+0x11/0x20 [ 407.132294] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 407.137585] ? rcu_softirq_qs+0x20/0x20 [ 407.141562] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 407.147100] ? check_preemption_disabled+0x48/0x280 [ 407.152130] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 407.156901] ? retint_kernel+0x2d/0x2d [ 407.160802] ? trace_hardirqs_on_caller+0xc0/0x310 [ 407.165746] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 407.170537] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 407.176017] ? zap_class+0x640/0x640 [ 407.179737] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 407.185275] ? check_preemption_disabled+0x48/0x280 [ 407.190301] ? __lock_is_held+0xb5/0x140 [ 407.194367] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 407.199905] ? check_preemption_disabled+0x48/0x280 [ 407.204928] run_timer_softirq+0x52/0xb0 [ 407.208989] ? rcu_read_lock_sched_held+0x14f/0x180 [ 407.214007] __do_softirq+0x308/0xb7e [ 407.217812] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 407.222308] ? lock_downgrade+0x900/0x900 [ 407.226459] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 407.231571] ? pvclock_read_flags+0x160/0x160 [ 407.236068] ? lapic_next_event+0x5a/0x90 [ 407.240250] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 407.245847] ? kvm_clock_read+0x18/0x30 [ 407.249822] ? kvm_sched_clock_read+0x9/0x20 [ 407.254231] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 407.259778] ? check_preemption_disabled+0x48/0x280 [ 407.264822] irq_exit+0x17f/0x1c0 [ 407.268317] smp_apic_timer_interrupt+0x1cb/0x760 [ 407.273167] ? smp_reschedule_interrupt+0x109/0x650 [ 407.278202] ? smp_call_function_single_interrupt+0x650/0x650 [ 407.284098] ? interrupt_entry+0xb5/0xc0 [ 407.288178] ? trace_hardirqs_off_caller+0xbb/0x310 [ 407.293224] ? trace_hardirqs_off_caller+0xbb/0x310 [ 407.298241] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 407.303087] ? trace_hardirqs_on_caller+0x310/0x310 [ 407.308103] ? trace_hardirqs_on_caller+0x310/0x310 [ 407.313147] ? task_prio+0x50/0x50 [ 407.316689] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 407.322226] ? check_preemption_disabled+0x48/0x280 [ 407.327242] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 407.332088] apic_timer_interrupt+0xf/0x20 [ 407.336312] [ 407.338561] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 407.343489] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 407.362384] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 407.370091] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 407.377350] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 407.384611] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 407.391868] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 407.399126] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 407.406480] skb_clone+0x1bb/0x500 [ 407.410052] ? skb_split+0x11e0/0x11e0 [ 407.413954] ? preempt_notifier_register+0x200/0x200 [ 407.419065] ? __switch_to_asm+0x34/0x70 [ 407.423116] ? __switch_to_asm+0x34/0x70 [ 407.427173] ? __switch_to_asm+0x40/0x70 [ 407.431226] ? __switch_to_asm+0x34/0x70 [ 407.435304] ? __switch_to_asm+0x40/0x70 [ 407.439358] ? __switch_to_asm+0x40/0x70 [ 407.443422] ? __switch_to_asm+0x34/0x70 [ 407.447474] ? __switch_to_asm+0x34/0x70 [ 407.451523] ? __switch_to_asm+0x40/0x70 [ 407.455590] ? __switch_to_asm+0x34/0x70 [ 407.459661] bpf_clone_redirect+0xb9/0x490 [ 407.463946] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 407.468958] ? __sched_text_start+0x8/0x8 [ 407.473117] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 407.477882] ? find_held_lock+0x36/0x1c0 [ 407.481960] ? lock_acquire+0x1ed/0x520 [ 407.485932] ? bpf_test_run+0x3ee/0x7a0 [ 407.489914] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 407.495445] ? check_preemption_disabled+0x48/0x280 [ 407.500507] ? kasan_check_read+0x11/0x20 [ 407.504664] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 407.509945] ? rcu_softirq_qs+0x20/0x20 [ 407.513963] ? preempt_schedule+0x4d/0x60 [ 407.518103] ? ___preempt_schedule+0x16/0x18 [ 407.522542] ? bpf_test_run+0x271/0x7a0 [ 407.526524] ? netlink_diag_dump+0x2a0/0x2a0 [ 407.530935] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 407.536466] ? bpf_test_init.isra.10+0x70/0x100 [ 407.541139] ? bpf_prog_test_run_skb+0x762/0xd60 [ 407.545925] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 407.550765] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 407.556295] ? fput+0x130/0x1a0 [ 407.559571] ? __bpf_prog_get+0x9b/0x290 [ 407.563624] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 407.568487] ? bpf_prog_test_run+0x130/0x1a0 [ 407.572925] ? __x64_sys_bpf+0x3d8/0x520 [ 407.576985] ? bpf_prog_get+0x20/0x20 [ 407.580832] ? do_syscall_64+0x1b9/0x820 [ 407.584888] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 407.590251] ? syscall_return_slowpath+0x5e0/0x5e0 [ 407.595179] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 407.600019] ? trace_hardirqs_on_caller+0x310/0x310 [ 407.605031] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 407.610045] ? prepare_exit_to_usermode+0x291/0x3b0 [ 407.615065] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 407.619949] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 407.625329] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 407.625437] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 407.632255] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 407.632260] Call Trace: [ 407.632265] [ 407.632281] dump_stack+0x244/0x39d [ 407.632302] ? dump_stack_print_info.cold.1+0x20/0x20 [ 407.638845] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 407.648124] warn_alloc.cold.116+0xb7/0x1bd [ 407.650672] syz-executor4 cpuset=syz4 mems_allowed=0 [ 407.652814] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 407.686297] ? lock_downgrade+0x900/0x900 [ 407.690471] ? trace_hardirqs_off+0xb8/0x310 [ 407.694903] ? trace_hardirqs_off+0xb8/0x310 [ 407.699323] __alloc_pages_slowpath+0x2651/0x2de0 [ 407.704199] ? warn_alloc+0x120/0x120 [ 407.707998] ? print_usage_bug+0xc0/0xc0 [ 407.712057] ? warn_alloc+0x120/0x120 [ 407.715861] ? warn_alloc+0x120/0x120 [ 407.719674] ? print_usage_bug+0xc0/0xc0 [ 407.723750] ? kvm_clock_read+0x18/0x30 [ 407.727738] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 407.732754] ? print_usage_bug+0xc0/0xc0 [ 407.736833] ? __lock_acquire+0x62f/0x4c20 [ 407.741067] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 407.746600] ? should_fail+0x22d/0xd01 [ 407.750500] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 407.755774] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 407.760912] ? __lock_acquire+0x62f/0x4c20 [ 407.765153] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 407.770255] ? __lock_acquire+0x62f/0x4c20 [ 407.774486] ? should_fail+0x22d/0xd01 [ 407.778365] ? rcu_irq_exit+0x1a2/0x390 [ 407.782346] ? mark_held_locks+0x130/0x130 [ 407.786582] ? mark_held_locks+0x130/0x130 [ 407.790829] ? mark_held_locks+0xc7/0x130 [ 407.794969] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 407.799992] ? zap_class+0x640/0x640 [ 407.803704] ? print_usage_bug+0xc0/0xc0 [ 407.807765] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 407.813310] ? check_preemption_disabled+0x48/0x280 [ 407.818391] ? __lock_is_held+0xb5/0x140 [ 407.822452] __alloc_pages_nodemask+0xad8/0xea0 [ 407.827116] ? zap_class+0x640/0x640 [ 407.830856] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 407.835883] ? find_held_lock+0x36/0x1c0 [ 407.839951] ? ____cache_alloc_node+0x1c7/0x1e0 [ 407.844618] ? lock_downgrade+0x900/0x900 [ 407.848771] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 407.854307] cache_grow_begin+0xa5/0x8c0 [ 407.858380] ? do_raw_spin_unlock+0xa7/0x330 [ 407.862790] fallback_alloc+0x204/0x2e0 [ 407.866778] ____cache_alloc_node+0x1c7/0x1e0 [ 407.871275] kmem_cache_alloc_node+0xe3/0x730 [ 407.875767] ? ipv6_get_ifaddr+0x42e/0x620 [ 407.880012] __alloc_skb+0x119/0x770 [ 407.883724] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 407.889002] ? netdev_alloc_frag+0x1f0/0x1f0 [ 407.893490] ? lock_downgrade+0x900/0x900 [ 407.897657] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 407.903224] ? refcount_sub_and_test_checked+0x203/0x310 [ 407.908676] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 407.914129] ? addrconf_rs_timer+0x690/0x690 [ 407.918556] ndisc_alloc_skb+0x144/0x340 [ 407.922620] ndisc_send_rs+0x331/0x6e0 [ 407.926534] addrconf_rs_timer+0x314/0x690 [ 407.930786] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 407.935027] call_timer_fn+0x272/0x920 [ 407.938915] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 407.943161] ? process_timeout+0x40/0x40 [ 407.947237] ? mark_held_locks+0xc7/0x130 [ 407.951385] ? _raw_spin_unlock_irq+0x27/0x80 [ 407.955878] ? _raw_spin_unlock_irq+0x27/0x80 [ 407.960404] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 407.964636] ? lockdep_hardirqs_on+0x296/0x5b0 [ 407.969212] ? trace_hardirqs_on+0xbd/0x310 [ 407.973529] ? kasan_check_read+0x11/0x20 [ 407.977689] ? __run_timers+0x7da/0xc70 [ 407.981675] ? trace_hardirqs_off_caller+0x310/0x310 [ 407.986796] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 407.991053] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 407.995300] __run_timers+0x7e5/0xc70 [ 407.999106] ? timer_fixup_init+0x70/0x70 [ 408.003258] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 408.008288] ? zap_class+0x640/0x640 [ 408.012005] ? print_usage_bug+0xc0/0xc0 [ 408.016067] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 408.021259] ? find_held_lock+0x36/0x1c0 [ 408.025325] ? zap_class+0x640/0x640 [ 408.029042] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 408.034576] ? check_preemption_disabled+0x48/0x280 [ 408.039597] ? __lock_is_held+0xb5/0x140 [ 408.043652] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 408.049211] ? check_preemption_disabled+0x48/0x280 [ 408.054259] run_timer_softirq+0x52/0xb0 [ 408.058321] ? rcu_read_lock_sched_held+0x14f/0x180 [ 408.063333] __do_softirq+0x308/0xb7e [ 408.067130] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 408.071629] ? lock_downgrade+0x900/0x900 [ 408.075781] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 408.080895] ? pvclock_read_flags+0x160/0x160 [ 408.085414] ? lapic_next_event+0x5a/0x90 [ 408.089580] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 408.095119] ? kvm_clock_read+0x18/0x30 [ 408.099097] ? kvm_sched_clock_read+0x9/0x20 [ 408.103503] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 408.109036] ? check_preemption_disabled+0x48/0x280 [ 408.114071] irq_exit+0x17f/0x1c0 [ 408.117536] smp_apic_timer_interrupt+0x1cb/0x760 [ 408.122371] ? smp_reschedule_interrupt+0x109/0x650 [ 408.127431] ? smp_call_function_single_interrupt+0x650/0x650 [ 408.133323] ? interrupt_entry+0xb5/0xc0 [ 408.137390] ? trace_hardirqs_off_caller+0xbb/0x310 [ 408.142414] ? trace_hardirqs_off_caller+0xbb/0x310 [ 408.147456] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 408.152289] ? trace_hardirqs_on_caller+0x310/0x310 [ 408.157307] ? trace_hardirqs_on_caller+0x310/0x310 [ 408.162324] ? task_prio+0x50/0x50 [ 408.165858] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 408.171408] ? check_preemption_disabled+0x48/0x280 [ 408.176437] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 408.181292] apic_timer_interrupt+0xf/0x20 [ 408.185631] [ 408.187869] RIP: 0010:lock_acquire+0x268/0x520 [ 408.192478] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 408.211379] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 408.219097] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 408.226372] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 408.233650] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 408.240922] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 408.248192] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 408.255526] ? lruvec_lru_size+0x450/0x450 [ 408.259774] ? kasan_check_read+0x11/0x20 [ 408.263947] ? lock_release+0xa00/0xa00 [ 408.267952] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 408.272923] down_read_trylock+0xda/0x140 [ 408.277068] ? shrink_slab+0x207/0x8c0 [ 408.280964] ? downgrade_write+0x270/0x270 [ 408.285215] shrink_slab+0x207/0x8c0 [ 408.288936] ? shrink_active_list+0x1f00/0x1f00 [ 408.293615] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 408.299243] ? __lock_acquire+0x62f/0x4c20 [ 408.303483] ? percpu_ref_get_many+0x240/0x240 [ 408.308085] ? print_usage_bug+0xc0/0xc0 [ 408.312169] shrink_node+0x431/0x16b0 [ 408.315969] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 408.321273] ? shrink_node_memcg+0x18f0/0x18f0 [ 408.325862] ? kvm_clock_read+0x18/0x30 [ 408.329854] ? ktime_get+0x2c1/0x400 [ 408.333574] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 408.338076] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 408.343614] ? __cpuset_node_allowed+0x19b/0x660 [ 408.348374] ? mark_held_locks+0x130/0x130 [ 408.352630] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 408.358342] ? zap_class+0x640/0x640 [ 408.362074] do_try_to_free_pages+0x3e7/0x1290 [ 408.366655] ? zap_class+0x640/0x640 [ 408.370385] ? shrink_node+0x16b0/0x16b0 [ 408.374452] ? __lock_is_held+0xb5/0x140 [ 408.378524] try_to_free_pages+0x4d0/0xb90 [ 408.382763] ? do_try_to_free_pages+0x1290/0x1290 [ 408.387643] ? lock_acquire+0x1ed/0x520 [ 408.391636] ? set_page_refcounted+0x280/0x280 [ 408.396224] ? lock_release+0xa00/0xa00 [ 408.400202] ? _raw_spin_unlock_irq+0x60/0x80 [ 408.404700] ? psi_memstall_enter+0x240/0x2b0 [ 408.409199] ? psi_memstall_tick+0x230/0x230 [ 408.413619] __alloc_pages_slowpath+0xa48/0x2de0 [ 408.418403] ? warn_alloc+0x120/0x120 [ 408.422208] ? mark_held_locks+0x130/0x130 [ 408.426452] ? find_get_entry+0xaae/0x1120 [ 408.430697] ? filemap_map_pages+0x1a20/0x1a20 [ 408.435285] ? zap_class+0x640/0x640 [ 408.439006] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 408.444549] ? check_preemption_disabled+0x48/0x280 [ 408.449591] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 408.455141] ? should_fail+0x22d/0xd01 [ 408.459041] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 408.464156] ? zap_class+0x640/0x640 [ 408.467918] ? __lock_is_held+0xb5/0x140 [ 408.472008] ? mark_held_locks+0x130/0x130 [ 408.476255] ? lock_release+0xa00/0xa00 [ 408.480245] ? perf_trace_sched_process_exec+0x860/0x860 [ 408.485699] ? xa_load+0x2ba/0x460 [ 408.489243] ? lock_downgrade+0x900/0x900 [ 408.493402] ? __might_sleep+0x95/0x190 [ 408.497386] __alloc_pages_nodemask+0xad8/0xea0 [ 408.502067] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 408.507083] ? __page_cache_alloc+0x191/0x5c0 [ 408.511596] ? xa_load+0x2e1/0x460 [ 408.515165] ? xa_clear_mark+0x40/0x40 [ 408.519057] ? zap_class+0x640/0x640 [ 408.522784] ? zap_class+0x640/0x640 [ 408.526506] ? zap_class+0x640/0x640 [ 408.530225] ? __do_page_cache_readahead+0x663/0x810 [ 408.535345] ? find_held_lock+0x36/0x1c0 [ 408.539414] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 408.544962] alloc_pages_current+0x173/0x350 [ 408.549386] __page_cache_alloc+0x38c/0x5c0 [ 408.553707] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 408.558644] ? kasan_check_read+0x11/0x20 [ 408.562793] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 408.568089] ? generic_perform_write+0x6a0/0x6a0 [ 408.572876] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 408.578476] ? check_preemption_disabled+0x48/0x280 [ 408.583505] filemap_fault+0x1595/0x25f0 [ 408.587581] ? __lock_page_or_retry+0xa00/0xa00 [ 408.592258] ? mark_held_locks+0x130/0x130 [ 408.596520] ? filemap_map_pages+0xd6b/0x1a20 [ 408.601019] ? lock_downgrade+0x900/0x900 [ 408.605175] ? check_preemption_disabled+0x48/0x280 [ 408.610197] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 408.615132] ? kasan_check_read+0x11/0x20 [ 408.619308] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 408.624587] ? rcu_softirq_qs+0x20/0x20 [ 408.628581] ? filemap_map_pages+0xd92/0x1a20 [ 408.633105] ? find_get_entries_tag+0x1400/0x1400 [ 408.637964] ? debug_object_destroy+0x2b0/0x2b0 [ 408.642647] ? lock_pi_update_atomic+0x150/0x150 [ 408.647409] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 408.652963] ? lock_acquire+0x1ed/0x520 [ 408.656939] ? ext4_filemap_fault+0x7a/0xad [ 408.661266] ? lock_release+0xa00/0xa00 [ 408.665238] ? perf_trace_sched_process_exec+0x860/0x860 [ 408.670701] ? print_usage_bug+0xc0/0xc0 [ 408.674779] ? print_usage_bug+0xc0/0xc0 [ 408.678888] ? down_read+0x8d/0x120 [ 408.682519] ? ext4_filemap_fault+0x7a/0xad [ 408.686882] ? __down_interruptible+0x700/0x700 [ 408.691570] ext4_filemap_fault+0x82/0xad [ 408.695723] __do_fault+0x100/0x6b0 [ 408.699362] ? find_held_lock+0x36/0x1c0 [ 408.703427] ? pmd_devmap_trans_unstable+0x220/0x220 [ 408.708565] ? mark_held_locks+0x130/0x130 [ 408.712803] ? mark_held_locks+0x130/0x130 [ 408.717052] ? kasan_check_read+0x11/0x20 [ 408.721200] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 408.726741] __handle_mm_fault+0x3ea0/0x5be0 [ 408.731165] ? perf_trace_lock+0x7a0/0x7a0 [ 408.735422] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 408.740281] ? __switch_to_asm+0x34/0x70 [ 408.744347] ? __switch_to_asm+0x34/0x70 [ 408.748423] ? zap_class+0x640/0x640 [ 408.752150] ? zap_class+0x640/0x640 [ 408.755868] ? __x64_sys_futex+0x53e/0x6a0 [ 408.760110] ? find_held_lock+0x36/0x1c0 [ 408.764189] ? handle_mm_fault+0x42a/0xc70 [ 408.768428] ? lock_downgrade+0x900/0x900 [ 408.772582] ? check_preemption_disabled+0x48/0x280 [ 408.777629] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 408.782563] ? kasan_check_read+0x11/0x20 [ 408.786711] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 408.792019] ? rcu_softirq_qs+0x20/0x20 [ 408.795992] ? trace_hardirqs_off_caller+0x310/0x310 [ 408.801105] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 408.806652] ? sync_mm_rss+0x9a/0x1c0 [ 408.810457] handle_mm_fault+0x54f/0xc70 [ 408.814523] ? __handle_mm_fault+0x5be0/0x5be0 [ 408.819152] ? find_vma+0x34/0x190 [ 408.822713] __do_page_fault+0x5e8/0xe60 [ 408.826777] ? trace_hardirqs_off+0xb8/0x310 [ 408.831205] do_page_fault+0xf2/0x7e0 [ 408.835012] ? vmalloc_sync_all+0x30/0x30 [ 408.839178] ? error_entry+0x70/0xd0 [ 408.842893] ? trace_hardirqs_off_caller+0xbb/0x310 [ 408.847935] ? trace_hardirqs_on_caller+0xc0/0x310 [ 408.852866] ? syscall_return_slowpath+0x5e0/0x5e0 [ 408.857813] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 408.862660] ? trace_hardirqs_on_caller+0x310/0x310 [ 408.867675] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 408.873156] ? prepare_exit_to_usermode+0x291/0x3b0 [ 408.878195] ? page_fault+0x8/0x30 [ 408.881743] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 408.886591] ? page_fault+0x8/0x30 [ 408.890152] page_fault+0x1e/0x30 [ 408.893607] RIP: 0033:0x45ddf3 [ 408.896816] Code: Bad RIP value. [ 408.900193] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 408.905554] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 408.912820] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 408.920088] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 408.927357] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 408.934626] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 408.941932] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 408.941937] warn_alloc_show_mem: 1 callbacks suppressed [ 408.941944] Mem-Info: [ 408.949418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 408.954801] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 408.954801] active_file:17 inactive_file:17 isolated_file:0 [ 408.954801] unevictable:0 dirty:4 writeback:0 unstable:0 [ 408.954801] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 408.954801] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 408.954801] free:13550 free_pcp:124 free_cma:0 [ 408.957176] Call Trace: [ 408.966565] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 408.999600] [ 409.002184] 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 [ 409.029964] dump_stack+0x244/0x39d [ 409.032089] lowmem_reserve[]: 0 2818 6321 6321 [ 409.058213] ? dump_stack_print_info.cold.1+0x20/0x20 [ 409.061815] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 409.066415] warn_alloc.cold.116+0xb7/0x1bd [ 409.071583] lowmem_reserve[]: 0 0 3503 3503 [ 409.099064] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 409.103385] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 409.107710] ? lock_downgrade+0x900/0x900 [ 409.112528] lowmem_reserve[]: 0 0 0 0 [ 409.141433] ? trace_hardirqs_off+0xb8/0x310 [ 409.145545] 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 [ 409.149342] ? trace_hardirqs_off+0xb8/0x310 [ 409.153723] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 409.167246] __alloc_pages_slowpath+0x2651/0x2de0 [ 409.171624] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 409.186386] ? warn_alloc+0x120/0x120 [ 409.191187] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 409.205931] ? print_usage_bug+0xc0/0xc0 [ 409.209727] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 409.218553] ? warn_alloc+0x120/0x120 [ 409.222588] 1360 total pagecache pages [ 409.231185] ? warn_alloc+0x120/0x120 [ 409.234969] 0 pages in swap cache [ 409.238843] ? print_usage_bug+0xc0/0xc0 [ 409.242618] Swap cache stats: add 0, delete 0, find 0/0 [ 409.246061] ? print_usage_bug+0xc0/0xc0 [ 409.250098] Free swap = 0kB [ 409.255457] ? __lock_acquire+0x62f/0x4c20 [ 409.259492] Total swap = 0kB [ 409.262510] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 409.266720] 1965979 pages RAM [ 409.269734] ? should_fail+0x22d/0xd01 [ 409.275240] 0 pages HighMem/MovableOnly [ 409.275249] 342854 pages reserved [ 409.278349] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 409.282209] 0 pages cma reserved [ 409.286183] ? __lock_acquire+0x62f/0x4c20 [ 409.289686] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 409.294704] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 409.294717] ? __lock_acquire+0x62f/0x4c20 [ 409.294733] ? should_fail+0x22d/0xd01 [ 409.298154] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 409.302307] ? find_held_lock+0x36/0x1c0 [ 409.308779] syz-fuzzer cpuset=/ mems_allowed=0 [ 409.313881] ? mark_held_locks+0x130/0x130 [ 409.345010] ? mark_held_locks+0x130/0x130 [ 409.349246] ? zap_class+0x640/0x640 [ 409.352967] ? zap_class+0x640/0x640 [ 409.356681] ? print_usage_bug+0xc0/0xc0 [ 409.360740] ? do_raw_spin_unlock+0xa7/0x330 [ 409.365172] ? zap_class+0x640/0x640 [ 409.368940] ? print_usage_bug+0xc0/0xc0 [ 409.372999] ? wq_watchdog_touch+0x9c/0xfe [ 409.377234] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 409.382777] ? check_preemption_disabled+0x48/0x280 [ 409.387815] ? __lock_is_held+0xb5/0x140 [ 409.391885] __alloc_pages_nodemask+0xad8/0xea0 [ 409.396558] ? zap_class+0x640/0x640 [ 409.400283] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 409.405308] ? find_held_lock+0x36/0x1c0 [ 409.409397] ? ____cache_alloc_node+0x1c7/0x1e0 [ 409.414074] ? lock_downgrade+0x900/0x900 [ 409.418261] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 409.423807] cache_grow_begin+0xa5/0x8c0 [ 409.427872] ? do_raw_spin_unlock+0xa7/0x330 [ 409.432293] fallback_alloc+0x204/0x2e0 [ 409.436287] ____cache_alloc_node+0x1c7/0x1e0 [ 409.440803] kmem_cache_alloc_node+0xe3/0x730 [ 409.445303] ? ipv6_get_ifaddr+0x42e/0x620 [ 409.449562] __alloc_skb+0x119/0x770 [ 409.453275] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 409.458556] ? netdev_alloc_frag+0x1f0/0x1f0 [ 409.462967] ? lock_downgrade+0x900/0x900 [ 409.467150] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 409.472693] ? refcount_sub_and_test_checked+0x203/0x310 [ 409.478156] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 409.483613] ? addrconf_rs_timer+0x690/0x690 [ 409.488037] ndisc_alloc_skb+0x144/0x340 [ 409.492158] ndisc_send_rs+0x331/0x6e0 [ 409.496054] addrconf_rs_timer+0x314/0x690 [ 409.500294] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 409.504541] call_timer_fn+0x272/0x920 [ 409.508432] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 409.512668] ? process_timeout+0x40/0x40 [ 409.516754] ? __run_timers+0x7da/0xc70 [ 409.520782] ? _raw_spin_unlock_irq+0x27/0x80 [ 409.525291] ? _raw_spin_unlock_irq+0x27/0x80 [ 409.529784] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 409.534022] ? lockdep_hardirqs_on+0x296/0x5b0 [ 409.538633] ? trace_hardirqs_on+0xbd/0x310 [ 409.542971] ? kasan_check_read+0x11/0x20 [ 409.547119] ? __run_timers+0x7da/0xc70 [ 409.551106] ? trace_hardirqs_off_caller+0x310/0x310 [ 409.556236] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 409.560477] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 409.564713] __run_timers+0x7e5/0xc70 [ 409.568557] ? timer_fixup_init+0x70/0x70 [ 409.572709] ? kasan_check_read+0x11/0x20 [ 409.576861] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 409.582163] ? rcu_softirq_qs+0x20/0x20 [ 409.586153] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 409.591696] ? check_preemption_disabled+0x48/0x280 [ 409.596721] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 409.601485] ? retint_kernel+0x2d/0x2d [ 409.605380] ? trace_hardirqs_on_caller+0xc0/0x310 [ 409.610319] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 409.615080] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 409.620537] ? zap_class+0x640/0x640 [ 409.624261] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 409.629801] ? check_preemption_disabled+0x48/0x280 [ 409.634827] ? __lock_is_held+0xb5/0x140 [ 409.638891] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 409.644437] ? check_preemption_disabled+0x48/0x280 [ 409.649460] run_timer_softirq+0x52/0xb0 [ 409.653538] ? rcu_read_lock_sched_held+0x14f/0x180 [ 409.658557] __do_softirq+0x308/0xb7e [ 409.662367] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 409.666869] ? lock_downgrade+0x900/0x900 [ 409.671023] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 409.676143] ? pvclock_read_flags+0x160/0x160 [ 409.680645] ? lapic_next_event+0x5a/0x90 [ 409.684797] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 409.690341] ? kvm_clock_read+0x18/0x30 [ 409.694318] ? kvm_sched_clock_read+0x9/0x20 [ 409.698729] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 409.704273] ? check_preemption_disabled+0x48/0x280 [ 409.709301] irq_exit+0x17f/0x1c0 [ 409.712760] smp_apic_timer_interrupt+0x1cb/0x760 [ 409.717602] ? smp_reschedule_interrupt+0x109/0x650 [ 409.722620] ? smp_call_function_single_interrupt+0x650/0x650 [ 409.728509] ? interrupt_entry+0xb5/0xc0 [ 409.732575] ? trace_hardirqs_off_caller+0xbb/0x310 [ 409.737590] ? trace_hardirqs_off_caller+0xbb/0x310 [ 409.742607] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 409.747457] ? trace_hardirqs_on_caller+0x310/0x310 [ 409.752476] ? trace_hardirqs_on_caller+0x310/0x310 [ 409.757496] ? task_prio+0x50/0x50 [ 409.761038] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 409.766597] ? check_preemption_disabled+0x48/0x280 [ 409.771621] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 409.776474] apic_timer_interrupt+0xf/0x20 [ 409.780709] [ 409.782965] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 409.787942] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 409.806867] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 409.814576] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 409.821844] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 409.829110] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 409.836421] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 409.843690] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 409.851008] skb_clone+0x1bb/0x500 [ 409.854570] ? skb_split+0x11e0/0x11e0 [ 409.858496] ? preempt_notifier_register+0x200/0x200 [ 409.863612] ? __switch_to_asm+0x34/0x70 [ 409.867674] ? __switch_to_asm+0x34/0x70 [ 409.871734] ? __switch_to_asm+0x40/0x70 [ 409.875792] ? __switch_to_asm+0x34/0x70 [ 409.879868] ? __switch_to_asm+0x40/0x70 [ 409.883925] ? __switch_to_asm+0x40/0x70 [ 409.887985] ? __switch_to_asm+0x34/0x70 [ 409.892042] ? __switch_to_asm+0x34/0x70 [ 409.896102] ? __switch_to_asm+0x40/0x70 [ 409.900164] ? __switch_to_asm+0x34/0x70 [ 409.904233] bpf_clone_redirect+0xb9/0x490 [ 409.908481] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 409.913504] ? __sched_text_start+0x8/0x8 [ 409.917653] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 409.922432] ? find_held_lock+0x36/0x1c0 [ 409.926502] ? lock_acquire+0x1ed/0x520 [ 409.930478] ? bpf_test_run+0x3ee/0x7a0 [ 409.934491] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 409.940035] ? check_preemption_disabled+0x48/0x280 [ 409.945077] ? kasan_check_read+0x11/0x20 [ 409.949241] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 409.954519] ? rcu_softirq_qs+0x20/0x20 [ 409.958496] ? preempt_schedule+0x4d/0x60 [ 409.962648] ? ___preempt_schedule+0x16/0x18 [ 409.967066] ? bpf_test_run+0x271/0x7a0 [ 409.971071] ? netlink_diag_dump+0x2a0/0x2a0 [ 409.975488] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 409.981024] ? bpf_test_init.isra.10+0x70/0x100 [ 409.985718] ? bpf_prog_test_run_skb+0x762/0xd60 [ 409.990488] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 409.995346] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 410.000884] ? fput+0x130/0x1a0 [ 410.004174] ? __bpf_prog_get+0x9b/0x290 [ 410.008246] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 410.013088] ? bpf_prog_test_run+0x130/0x1a0 [ 410.017501] ? __x64_sys_bpf+0x3d8/0x520 [ 410.021590] ? bpf_prog_get+0x20/0x20 [ 410.025420] ? do_syscall_64+0x1b9/0x820 [ 410.029512] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 410.034880] ? syscall_return_slowpath+0x5e0/0x5e0 [ 410.039809] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 410.044655] ? trace_hardirqs_on_caller+0x310/0x310 [ 410.049675] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 410.054694] ? prepare_exit_to_usermode+0x291/0x3b0 [ 410.059714] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 410.064563] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 410.069946] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 410.070032] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 410.076882] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 410.076888] Call Trace: [ 410.076895] [ 410.076920] dump_stack+0x244/0x39d [ 410.076939] ? dump_stack_print_info.cold.1+0x20/0x20 [ 410.083529] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 410.092794] warn_alloc.cold.116+0xb7/0x1bd [ 410.095345] syz-executor4 cpuset=syz4 mems_allowed=0 [ 410.097507] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 410.131083] ? lock_downgrade+0x900/0x900 [ 410.135331] ? trace_hardirqs_off+0xb8/0x310 [ 410.139746] ? trace_hardirqs_off+0xb8/0x310 [ 410.144174] __alloc_pages_slowpath+0x2651/0x2de0 [ 410.149048] ? warn_alloc+0x120/0x120 [ 410.152852] ? print_usage_bug+0xc0/0xc0 [ 410.156936] ? warn_alloc+0x120/0x120 [ 410.160742] ? warn_alloc+0x120/0x120 [ 410.164552] ? print_usage_bug+0xc0/0xc0 [ 410.168622] ? print_usage_bug+0xc0/0xc0 [ 410.172690] ? __lock_acquire+0x62f/0x4c20 [ 410.176936] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 410.182480] ? should_fail+0x22d/0xd01 [ 410.186374] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 410.191477] ? __lock_acquire+0x62f/0x4c20 [ 410.195736] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 410.200859] ? __lock_acquire+0x62f/0x4c20 [ 410.205095] ? should_fail+0x22d/0xd01 [ 410.208982] ? find_held_lock+0x36/0x1c0 [ 410.213050] ? mark_held_locks+0x130/0x130 [ 410.217311] ? mark_held_locks+0x130/0x130 [ 410.221557] ? zap_class+0x640/0x640 [ 410.225273] ? zap_class+0x640/0x640 [ 410.228992] ? print_usage_bug+0xc0/0xc0 [ 410.233054] ? do_raw_spin_unlock+0xa7/0x330 [ 410.237468] ? zap_class+0x640/0x640 [ 410.241211] ? print_usage_bug+0xc0/0xc0 [ 410.245273] ? wq_watchdog_touch+0x9c/0xfe [ 410.249516] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 410.255074] ? check_preemption_disabled+0x48/0x280 [ 410.260101] ? __lock_is_held+0xb5/0x140 [ 410.264189] __alloc_pages_nodemask+0xad8/0xea0 [ 410.268893] ? zap_class+0x640/0x640 [ 410.272619] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 410.277646] ? find_held_lock+0x36/0x1c0 [ 410.281723] ? ____cache_alloc_node+0x1c7/0x1e0 [ 410.286397] ? lock_downgrade+0x900/0x900 [ 410.290555] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 410.296100] cache_grow_begin+0xa5/0x8c0 [ 410.300189] ? do_raw_spin_unlock+0xa7/0x330 [ 410.304606] fallback_alloc+0x204/0x2e0 [ 410.308590] ____cache_alloc_node+0x1c7/0x1e0 [ 410.313104] kmem_cache_alloc_node+0xe3/0x730 [ 410.317659] ? ipv6_get_ifaddr+0x42e/0x620 [ 410.321921] __alloc_skb+0x119/0x770 [ 410.325632] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 410.330915] ? netdev_alloc_frag+0x1f0/0x1f0 [ 410.335327] ? lock_downgrade+0x900/0x900 [ 410.339485] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 410.345026] ? refcount_sub_and_test_checked+0x203/0x310 [ 410.350480] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 410.355948] ? addrconf_rs_timer+0x690/0x690 [ 410.360386] ndisc_alloc_skb+0x144/0x340 [ 410.364472] ndisc_send_rs+0x331/0x6e0 [ 410.368369] addrconf_rs_timer+0x314/0x690 [ 410.372610] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 410.376855] call_timer_fn+0x272/0x920 [ 410.380745] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 410.384983] ? process_timeout+0x40/0x40 [ 410.389058] ? mark_held_locks+0xc7/0x130 [ 410.393211] ? _raw_spin_unlock_irq+0x27/0x80 [ 410.397706] ? _raw_spin_unlock_irq+0x27/0x80 [ 410.402200] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 410.406439] ? lockdep_hardirqs_on+0x296/0x5b0 [ 410.411029] ? trace_hardirqs_on+0xbd/0x310 [ 410.415354] ? kasan_check_read+0x11/0x20 [ 410.419505] ? __run_timers+0x7da/0xc70 [ 410.423481] ? trace_hardirqs_off_caller+0x310/0x310 [ 410.428589] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 410.432828] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 410.437063] __run_timers+0x7e5/0xc70 [ 410.440880] ? timer_fixup_init+0x70/0x70 [ 410.445034] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 410.450055] ? zap_class+0x640/0x640 [ 410.453777] ? print_usage_bug+0xc0/0xc0 [ 410.457841] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 410.463040] ? find_held_lock+0x36/0x1c0 [ 410.467107] ? zap_class+0x640/0x640 [ 410.470837] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 410.476381] ? check_preemption_disabled+0x48/0x280 [ 410.481410] ? __lock_is_held+0xb5/0x140 [ 410.485479] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 410.491015] ? check_preemption_disabled+0x48/0x280 [ 410.496039] run_timer_softirq+0x52/0xb0 [ 410.500124] ? rcu_read_lock_sched_held+0x14f/0x180 [ 410.505157] __do_softirq+0x308/0xb7e [ 410.508975] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 410.513497] ? lock_downgrade+0x900/0x900 [ 410.517649] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 410.522761] ? pvclock_read_flags+0x160/0x160 [ 410.527263] ? lapic_next_event+0x5a/0x90 [ 410.531417] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 410.536963] ? kvm_clock_read+0x18/0x30 [ 410.540945] ? kvm_sched_clock_read+0x9/0x20 [ 410.545370] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 410.550915] ? check_preemption_disabled+0x48/0x280 [ 410.555958] irq_exit+0x17f/0x1c0 [ 410.559414] smp_apic_timer_interrupt+0x1cb/0x760 [ 410.564272] ? smp_reschedule_interrupt+0x109/0x650 [ 410.569291] ? smp_call_function_single_interrupt+0x650/0x650 [ 410.575177] ? interrupt_entry+0xb5/0xc0 [ 410.579242] ? trace_hardirqs_off_caller+0xbb/0x310 [ 410.584257] ? trace_hardirqs_off_caller+0xbb/0x310 [ 410.589281] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 410.594127] ? trace_hardirqs_on_caller+0x310/0x310 [ 410.599182] ? trace_hardirqs_on_caller+0x310/0x310 [ 410.604199] ? task_prio+0x50/0x50 [ 410.607742] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 410.613287] ? check_preemption_disabled+0x48/0x280 [ 410.618311] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 410.623173] apic_timer_interrupt+0xf/0x20 [ 410.627403] [ 410.629645] RIP: 0010:lock_acquire+0x268/0x520 [ 410.634235] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 410.653159] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 410.660877] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 410.668199] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 410.675474] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 410.682745] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 410.690010] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 410.697318] ? lruvec_lru_size+0x450/0x450 [ 410.701556] ? kasan_check_read+0x11/0x20 [ 410.705710] ? lock_release+0xa00/0xa00 [ 410.709692] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 410.714635] down_read_trylock+0xda/0x140 [ 410.718790] ? shrink_slab+0x207/0x8c0 [ 410.722690] ? downgrade_write+0x270/0x270 [ 410.726953] shrink_slab+0x207/0x8c0 [ 410.730668] ? shrink_active_list+0x1f00/0x1f00 [ 410.735345] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 410.740972] ? __lock_acquire+0x62f/0x4c20 [ 410.745212] ? percpu_ref_get_many+0x240/0x240 [ 410.749813] ? print_usage_bug+0xc0/0xc0 [ 410.753885] shrink_node+0x431/0x16b0 [ 410.757689] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 410.762997] ? shrink_node_memcg+0x18f0/0x18f0 [ 410.767586] ? kvm_clock_read+0x18/0x30 [ 410.771591] ? ktime_get+0x2c1/0x400 [ 410.775309] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 410.779821] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 410.785372] ? __cpuset_node_allowed+0x19b/0x660 [ 410.790147] ? mark_held_locks+0x130/0x130 [ 410.794426] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 410.800178] ? zap_class+0x640/0x640 [ 410.803928] do_try_to_free_pages+0x3e7/0x1290 [ 410.808504] ? zap_class+0x640/0x640 [ 410.812244] ? shrink_node+0x16b0/0x16b0 [ 410.816316] ? __lock_is_held+0xb5/0x140 [ 410.820380] try_to_free_pages+0x4d0/0xb90 [ 410.824615] ? do_try_to_free_pages+0x1290/0x1290 [ 410.829488] ? lock_acquire+0x1ed/0x520 [ 410.833513] ? set_page_refcounted+0x280/0x280 [ 410.838102] ? lock_release+0xa00/0xa00 [ 410.842087] ? _raw_spin_unlock_irq+0x60/0x80 [ 410.846597] ? psi_memstall_enter+0x240/0x2b0 [ 410.851109] ? psi_memstall_tick+0x230/0x230 [ 410.855581] __alloc_pages_slowpath+0xa48/0x2de0 [ 410.860364] ? warn_alloc+0x120/0x120 [ 410.864170] ? mark_held_locks+0x130/0x130 [ 410.868409] ? find_get_entry+0xaae/0x1120 [ 410.872650] ? filemap_map_pages+0x1a20/0x1a20 [ 410.877251] ? zap_class+0x640/0x640 [ 410.880971] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 410.886510] ? check_preemption_disabled+0x48/0x280 [ 410.891569] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 410.897106] ? should_fail+0x22d/0xd01 [ 410.901023] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 410.906127] ? zap_class+0x640/0x640 [ 410.909876] ? __lock_is_held+0xb5/0x140 [ 410.913966] ? mark_held_locks+0x130/0x130 [ 410.918207] ? lock_release+0xa00/0xa00 [ 410.922184] ? perf_trace_sched_process_exec+0x860/0x860 [ 410.927653] ? xa_load+0x2ba/0x460 [ 410.931197] ? lock_downgrade+0x900/0x900 [ 410.935353] ? __might_sleep+0x95/0x190 [ 410.939350] __alloc_pages_nodemask+0xad8/0xea0 [ 410.944076] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 410.949271] ? __page_cache_alloc+0x191/0x5c0 [ 410.953784] ? xa_load+0x2e1/0x460 [ 410.957344] ? xa_clear_mark+0x40/0x40 [ 410.961236] ? zap_class+0x640/0x640 [ 410.964989] ? zap_class+0x640/0x640 [ 410.968704] ? zap_class+0x640/0x640 [ 410.972422] ? __do_page_cache_readahead+0x663/0x810 [ 410.977532] ? find_held_lock+0x36/0x1c0 [ 410.981603] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 410.987163] alloc_pages_current+0x173/0x350 [ 410.991583] __page_cache_alloc+0x38c/0x5c0 [ 410.995927] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 411.000861] ? kasan_check_read+0x11/0x20 [ 411.005008] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 411.010287] ? generic_perform_write+0x6a0/0x6a0 [ 411.015048] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 411.020589] ? check_preemption_disabled+0x48/0x280 [ 411.025612] filemap_fault+0x1595/0x25f0 [ 411.029685] ? __lock_page_or_retry+0xa00/0xa00 [ 411.034356] ? mark_held_locks+0x130/0x130 [ 411.038601] ? filemap_map_pages+0xd6b/0x1a20 [ 411.043098] ? lock_downgrade+0x900/0x900 [ 411.047244] ? check_preemption_disabled+0x48/0x280 [ 411.052266] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 411.057204] ? kasan_check_read+0x11/0x20 [ 411.061353] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 411.066634] ? rcu_softirq_qs+0x20/0x20 [ 411.070623] ? filemap_map_pages+0xd92/0x1a20 [ 411.075133] ? find_get_entries_tag+0x1400/0x1400 [ 411.080509] ? debug_object_destroy+0x2b0/0x2b0 [ 411.085185] ? lock_pi_update_atomic+0x150/0x150 [ 411.089945] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 411.095497] ? lock_acquire+0x1ed/0x520 [ 411.099474] ? ext4_filemap_fault+0x7a/0xad [ 411.103814] ? lock_release+0xa00/0xa00 [ 411.107794] ? perf_trace_sched_process_exec+0x860/0x860 [ 411.113249] ? print_usage_bug+0xc0/0xc0 [ 411.117326] ? print_usage_bug+0xc0/0xc0 [ 411.121443] ? down_read+0x8d/0x120 [ 411.125098] ? ext4_filemap_fault+0x7a/0xad [ 411.129421] ? __down_interruptible+0x700/0x700 [ 411.134102] ext4_filemap_fault+0x82/0xad [ 411.138265] __do_fault+0x100/0x6b0 [ 411.141898] ? find_held_lock+0x36/0x1c0 [ 411.145976] ? pmd_devmap_trans_unstable+0x220/0x220 [ 411.151084] ? mark_held_locks+0x130/0x130 [ 411.155321] ? mark_held_locks+0x130/0x130 [ 411.159573] ? kasan_check_read+0x11/0x20 [ 411.163755] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 411.169300] __handle_mm_fault+0x3ea0/0x5be0 [ 411.173710] ? perf_trace_lock+0x7a0/0x7a0 [ 411.177972] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 411.182823] ? __switch_to_asm+0x34/0x70 [ 411.186885] ? __switch_to_asm+0x34/0x70 [ 411.190968] ? zap_class+0x640/0x640 [ 411.194681] ? zap_class+0x640/0x640 [ 411.198398] ? __x64_sys_futex+0x53e/0x6a0 [ 411.202650] ? find_held_lock+0x36/0x1c0 [ 411.206724] ? handle_mm_fault+0x42a/0xc70 [ 411.210966] ? lock_downgrade+0x900/0x900 [ 411.215116] ? check_preemption_disabled+0x48/0x280 [ 411.220157] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 411.225096] ? kasan_check_read+0x11/0x20 [ 411.229249] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 411.234527] ? rcu_softirq_qs+0x20/0x20 [ 411.238509] ? trace_hardirqs_off_caller+0x310/0x310 [ 411.243619] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 411.249171] ? sync_mm_rss+0x9a/0x1c0 [ 411.252981] handle_mm_fault+0x54f/0xc70 [ 411.257052] ? __handle_mm_fault+0x5be0/0x5be0 [ 411.261645] ? find_vma+0x34/0x190 [ 411.265194] __do_page_fault+0x5e8/0xe60 [ 411.269259] ? trace_hardirqs_off+0xb8/0x310 [ 411.273690] do_page_fault+0xf2/0x7e0 [ 411.277504] ? vmalloc_sync_all+0x30/0x30 [ 411.281655] ? error_entry+0x70/0xd0 [ 411.285375] ? trace_hardirqs_off_caller+0xbb/0x310 [ 411.290392] ? trace_hardirqs_on_caller+0xc0/0x310 [ 411.295328] ? syscall_return_slowpath+0x5e0/0x5e0 [ 411.300261] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 411.305107] ? trace_hardirqs_on_caller+0x310/0x310 [ 411.310163] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 411.315624] ? prepare_exit_to_usermode+0x291/0x3b0 [ 411.320672] ? page_fault+0x8/0x30 [ 411.324232] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 411.329078] ? page_fault+0x8/0x30 [ 411.332623] page_fault+0x1e/0x30 [ 411.336082] RIP: 0033:0x45ddf3 [ 411.339289] Code: Bad RIP value. [ 411.342650] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 411.348014] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 411.355286] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 411.362554] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 411.369826] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 411.377101] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 411.384404] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 411.384419] warn_alloc_show_mem: 1 callbacks suppressed [ 411.384424] Mem-Info: [ 411.384466] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 411.384466] active_file:17 inactive_file:17 isolated_file:0 [ 411.384466] unevictable:0 dirty:4 writeback:0 unstable:0 [ 411.384466] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 411.384466] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 411.384466] free:13550 free_pcp:124 free_cma:0 [ 411.391728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 411.397095] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 411.399491] Call Trace: [ 411.432547] 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 [ 411.441902] [ 411.469665] lowmem_reserve[]: 0 2818 6321 6321 [ 411.472268] dump_stack+0x244/0x39d [ 411.498363] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 411.500531] ? dump_stack_print_info.cold.1+0x20/0x20 [ 411.505111] lowmem_reserve[]: 0 0 3503 3503 [ 411.508751] warn_alloc.cold.116+0xb7/0x1bd [ 411.536080] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 411.541304] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 411.545598] lowmem_reserve[]: 0 0 0 0 [ 411.549914] ? lock_downgrade+0x900/0x900 [ 411.578814] 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 [ 411.583676] ? trace_hardirqs_off+0xb8/0x310 [ 411.587439] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 411.591598] ? trace_hardirqs_off+0xb8/0x310 [ 411.605108] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 411.609535] __alloc_pages_slowpath+0x2651/0x2de0 [ 411.624257] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 411.628687] ? warn_alloc+0x120/0x120 [ 411.643386] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 411.648232] ? print_usage_bug+0xc0/0xc0 [ 411.657035] 1360 total pagecache pages [ 411.660833] ? warn_alloc+0x120/0x120 [ 411.669402] 0 pages in swap cache [ 411.673474] ? warn_alloc+0x120/0x120 [ 411.677334] Swap cache stats: add 0, delete 0, find 0/0 [ 411.681132] ? print_usage_bug+0xc0/0xc0 [ 411.684563] Free swap = 0kB [ 411.688367] ? kvm_clock_read+0x18/0x30 [ 411.693704] Total swap = 0kB [ 411.697769] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 411.700760] 1965979 pages RAM [ 411.704739] ? print_usage_bug+0xc0/0xc0 [ 411.707735] 0 pages HighMem/MovableOnly [ 411.712745] ? __lock_acquire+0x62f/0x4c20 [ 411.715835] 342854 pages reserved [ 411.719892] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 411.723851] 0 pages cma reserved [ 411.728095] ? should_fail+0x22d/0xd01 [ 411.731596] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 411.737081] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 411.737100] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 411.740524] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 411.744330] ? __lock_acquire+0x62f/0x4c20 [ 411.750811] syz-fuzzer cpuset=/ mems_allowed=0 [ 411.756085] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 411.785276] ? __lock_acquire+0x62f/0x4c20 [ 411.789517] ? should_fail+0x22d/0xd01 [ 411.793403] ? rcu_irq_exit+0x1a2/0x390 [ 411.797395] ? mark_held_locks+0x130/0x130 [ 411.801640] ? mark_held_locks+0x130/0x130 [ 411.805884] ? mark_held_locks+0xc7/0x130 [ 411.810035] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 411.815053] ? zap_class+0x640/0x640 [ 411.818788] ? print_usage_bug+0xc0/0xc0 [ 411.822873] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 411.828432] ? check_preemption_disabled+0x48/0x280 [ 411.833464] ? __lock_is_held+0xb5/0x140 [ 411.837548] __alloc_pages_nodemask+0xad8/0xea0 [ 411.842223] ? zap_class+0x640/0x640 [ 411.845948] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 411.850976] ? find_held_lock+0x36/0x1c0 [ 411.855050] ? ____cache_alloc_node+0x1c7/0x1e0 [ 411.859725] ? lock_downgrade+0x900/0x900 [ 411.863896] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 411.869459] cache_grow_begin+0xa5/0x8c0 [ 411.873524] ? do_raw_spin_unlock+0xa7/0x330 [ 411.877940] fallback_alloc+0x204/0x2e0 [ 411.881925] ____cache_alloc_node+0x1c7/0x1e0 [ 411.886434] kmem_cache_alloc_node+0xe3/0x730 [ 411.890955] ? ipv6_get_ifaddr+0x42e/0x620 [ 411.895203] __alloc_skb+0x119/0x770 [ 411.898920] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 411.904203] ? netdev_alloc_frag+0x1f0/0x1f0 [ 411.908614] ? lock_downgrade+0x900/0x900 [ 411.912770] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 411.918313] ? refcount_sub_and_test_checked+0x203/0x310 [ 411.923780] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 411.929239] ? addrconf_rs_timer+0x690/0x690 [ 411.933664] ndisc_alloc_skb+0x144/0x340 [ 411.937745] ndisc_send_rs+0x331/0x6e0 [ 411.941642] addrconf_rs_timer+0x314/0x690 [ 411.945889] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 411.950147] call_timer_fn+0x272/0x920 [ 411.954038] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 411.958273] ? process_timeout+0x40/0x40 [ 411.962345] ? __run_timers+0x7da/0xc70 [ 411.966324] ? _raw_spin_unlock_irq+0x27/0x80 [ 411.970818] ? _raw_spin_unlock_irq+0x27/0x80 [ 411.975312] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 411.979560] ? lockdep_hardirqs_on+0x296/0x5b0 [ 411.984161] ? trace_hardirqs_on+0xbd/0x310 [ 411.988488] ? kasan_check_read+0x11/0x20 [ 411.992638] ? __run_timers+0x7da/0xc70 [ 411.996613] ? trace_hardirqs_off_caller+0x310/0x310 [ 412.001727] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 412.005968] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 412.010225] __run_timers+0x7e5/0xc70 [ 412.014037] ? timer_fixup_init+0x70/0x70 [ 412.018206] ? kasan_check_read+0x11/0x20 [ 412.022357] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 412.027643] ? rcu_softirq_qs+0x20/0x20 [ 412.031632] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 412.037175] ? check_preemption_disabled+0x48/0x280 [ 412.042213] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 412.046975] ? retint_kernel+0x2d/0x2d [ 412.050883] ? trace_hardirqs_on_caller+0xc0/0x310 [ 412.055816] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 412.060577] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 412.066047] ? zap_class+0x640/0x640 [ 412.069786] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 412.075328] ? check_preemption_disabled+0x48/0x280 [ 412.080356] ? __lock_is_held+0xb5/0x140 [ 412.084431] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 412.089975] ? check_preemption_disabled+0x48/0x280 [ 412.094998] run_timer_softirq+0x52/0xb0 [ 412.099063] ? rcu_read_lock_sched_held+0x14f/0x180 [ 412.104085] __do_softirq+0x308/0xb7e [ 412.107895] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 412.112395] ? lock_downgrade+0x900/0x900 [ 412.116565] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 412.121677] ? pvclock_read_flags+0x160/0x160 [ 412.126181] ? lapic_next_event+0x5a/0x90 [ 412.130339] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 412.135886] ? kvm_clock_read+0x18/0x30 [ 412.139885] ? kvm_sched_clock_read+0x9/0x20 [ 412.144313] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 412.149854] ? check_preemption_disabled+0x48/0x280 [ 412.154882] irq_exit+0x17f/0x1c0 [ 412.158340] smp_apic_timer_interrupt+0x1cb/0x760 [ 412.163191] ? smp_reschedule_interrupt+0x109/0x650 [ 412.168227] ? smp_call_function_single_interrupt+0x650/0x650 [ 412.174129] ? interrupt_entry+0xb5/0xc0 [ 412.178204] ? trace_hardirqs_off_caller+0xbb/0x310 [ 412.183219] ? trace_hardirqs_off_caller+0xbb/0x310 [ 412.188257] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 412.193100] ? trace_hardirqs_on_caller+0x310/0x310 [ 412.198114] ? trace_hardirqs_on_caller+0x310/0x310 [ 412.203147] ? task_prio+0x50/0x50 [ 412.206693] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 412.212239] ? check_preemption_disabled+0x48/0x280 [ 412.217270] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 412.222164] apic_timer_interrupt+0xf/0x20 [ 412.226403] [ 412.228654] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 412.233585] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 412.252490] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 412.260204] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 412.267471] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 412.274754] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 412.282020] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 412.289288] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 412.296605] skb_clone+0x1bb/0x500 [ 412.300157] ? skb_split+0x11e0/0x11e0 [ 412.304067] ? preempt_notifier_register+0x200/0x200 [ 412.309185] ? __switch_to_asm+0x34/0x70 [ 412.313259] ? __switch_to_asm+0x34/0x70 [ 412.317317] ? __switch_to_asm+0x40/0x70 [ 412.321379] ? __switch_to_asm+0x34/0x70 [ 412.325447] ? __switch_to_asm+0x40/0x70 [ 412.329527] ? __switch_to_asm+0x40/0x70 [ 412.333590] ? __switch_to_asm+0x34/0x70 [ 412.337654] ? __switch_to_asm+0x34/0x70 [ 412.341728] ? __switch_to_asm+0x40/0x70 [ 412.345787] ? __switch_to_asm+0x34/0x70 [ 412.349851] bpf_clone_redirect+0xb9/0x490 [ 412.354096] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 412.359134] ? __sched_text_start+0x8/0x8 [ 412.363338] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 412.368117] ? find_held_lock+0x36/0x1c0 [ 412.372203] ? lock_acquire+0x1ed/0x520 [ 412.376200] ? bpf_test_run+0x3ee/0x7a0 [ 412.380181] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 412.385725] ? check_preemption_disabled+0x48/0x280 [ 412.390768] ? kasan_check_read+0x11/0x20 [ 412.394930] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 412.400206] ? rcu_softirq_qs+0x20/0x20 [ 412.404191] ? preempt_schedule+0x4d/0x60 [ 412.408344] ? ___preempt_schedule+0x16/0x18 [ 412.412763] ? bpf_test_run+0x271/0x7a0 [ 412.416769] ? netlink_diag_dump+0x2a0/0x2a0 [ 412.421182] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 412.426723] ? bpf_test_init.isra.10+0x70/0x100 [ 412.431401] ? bpf_prog_test_run_skb+0x762/0xd60 [ 412.436179] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 412.441038] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 412.446577] ? fput+0x130/0x1a0 [ 412.449862] ? __bpf_prog_get+0x9b/0x290 [ 412.453932] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 412.458897] ? bpf_prog_test_run+0x130/0x1a0 [ 412.463325] ? __x64_sys_bpf+0x3d8/0x520 [ 412.467392] ? bpf_prog_get+0x20/0x20 [ 412.471233] ? do_syscall_64+0x1b9/0x820 [ 412.475296] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 412.480662] ? syscall_return_slowpath+0x5e0/0x5e0 [ 412.485592] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 412.490446] ? trace_hardirqs_on_caller+0x310/0x310 [ 412.495469] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 412.500506] ? prepare_exit_to_usermode+0x291/0x3b0 [ 412.505531] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 412.510388] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 412.515792] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 412.515894] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 412.522726] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 412.522732] Call Trace: [ 412.522740] [ 412.522759] dump_stack+0x244/0x39d [ 412.522777] ? dump_stack_print_info.cold.1+0x20/0x20 [ 412.529317] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 412.538618] warn_alloc.cold.116+0xb7/0x1bd [ 412.541177] syz-executor4 cpuset=syz4 mems_allowed=0 [ 412.543323] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 412.576862] ? lock_downgrade+0x900/0x900 [ 412.581027] ? trace_hardirqs_off+0xb8/0x310 [ 412.585447] ? trace_hardirqs_off+0xb8/0x310 [ 412.589870] __alloc_pages_slowpath+0x2651/0x2de0 [ 412.594747] ? warn_alloc+0x120/0x120 [ 412.598557] ? print_usage_bug+0xc0/0xc0 [ 412.602623] ? warn_alloc+0x120/0x120 [ 412.606471] ? warn_alloc+0x120/0x120 [ 412.610277] ? print_usage_bug+0xc0/0xc0 [ 412.614352] ? print_usage_bug+0xc0/0xc0 [ 412.618416] ? __lock_acquire+0x62f/0x4c20 [ 412.622661] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 412.628208] ? should_fail+0x22d/0xd01 [ 412.632103] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 412.637211] ? __lock_acquire+0x62f/0x4c20 [ 412.641483] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 412.646604] ? __lock_acquire+0x62f/0x4c20 [ 412.650844] ? should_fail+0x22d/0xd01 [ 412.654739] ? find_held_lock+0x36/0x1c0 [ 412.658816] ? mark_held_locks+0x130/0x130 [ 412.663057] ? mark_held_locks+0x130/0x130 [ 412.667291] ? zap_class+0x640/0x640 [ 412.671008] ? zap_class+0x640/0x640 [ 412.674743] ? print_usage_bug+0xc0/0xc0 [ 412.678804] ? do_raw_spin_unlock+0xa7/0x330 [ 412.683213] ? zap_class+0x640/0x640 [ 412.686932] ? print_usage_bug+0xc0/0xc0 [ 412.690996] ? wq_watchdog_touch+0x9c/0xfe [ 412.695245] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 412.700801] ? check_preemption_disabled+0x48/0x280 [ 412.705839] ? __lock_is_held+0xb5/0x140 [ 412.709916] __alloc_pages_nodemask+0xad8/0xea0 [ 412.714589] ? zap_class+0x640/0x640 [ 412.718317] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 412.723350] ? find_held_lock+0x36/0x1c0 [ 412.727425] ? ____cache_alloc_node+0x1c7/0x1e0 [ 412.732100] ? lock_downgrade+0x900/0x900 [ 412.736264] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 412.741824] cache_grow_begin+0xa5/0x8c0 [ 412.745905] ? do_raw_spin_unlock+0xa7/0x330 [ 412.750342] fallback_alloc+0x204/0x2e0 [ 412.754344] ____cache_alloc_node+0x1c7/0x1e0 [ 412.758849] kmem_cache_alloc_node+0xe3/0x730 [ 412.763352] ? ipv6_get_ifaddr+0x42e/0x620 [ 412.767603] __alloc_skb+0x119/0x770 [ 412.771320] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 412.776603] ? netdev_alloc_frag+0x1f0/0x1f0 [ 412.781014] ? lock_downgrade+0x900/0x900 [ 412.785181] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 412.790720] ? refcount_sub_and_test_checked+0x203/0x310 [ 412.796176] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 412.801646] ? addrconf_rs_timer+0x690/0x690 [ 412.806073] ndisc_alloc_skb+0x144/0x340 [ 412.810155] ndisc_send_rs+0x331/0x6e0 [ 412.814051] addrconf_rs_timer+0x314/0x690 [ 412.818299] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 412.822576] call_timer_fn+0x272/0x920 [ 412.826479] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 412.830715] ? process_timeout+0x40/0x40 [ 412.834788] ? mark_held_locks+0xc7/0x130 [ 412.838949] ? _raw_spin_unlock_irq+0x27/0x80 [ 412.843442] ? _raw_spin_unlock_irq+0x27/0x80 [ 412.847960] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 412.852197] ? lockdep_hardirqs_on+0x296/0x5b0 [ 412.856782] ? trace_hardirqs_on+0xbd/0x310 [ 412.861104] ? kasan_check_read+0x11/0x20 [ 412.865260] ? __run_timers+0x7da/0xc70 [ 412.869238] ? trace_hardirqs_off_caller+0x310/0x310 [ 412.874353] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 412.878598] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 412.882842] __run_timers+0x7e5/0xc70 [ 412.886657] ? timer_fixup_init+0x70/0x70 [ 412.890808] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 412.895837] ? zap_class+0x640/0x640 [ 412.899564] ? print_usage_bug+0xc0/0xc0 [ 412.903640] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 412.908835] ? find_held_lock+0x36/0x1c0 [ 412.912901] ? zap_class+0x640/0x640 [ 412.916629] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 412.922176] ? check_preemption_disabled+0x48/0x280 [ 412.927208] ? __lock_is_held+0xb5/0x140 [ 412.931272] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 412.936817] ? check_preemption_disabled+0x48/0x280 [ 412.941853] run_timer_softirq+0x52/0xb0 [ 412.945941] ? rcu_read_lock_sched_held+0x14f/0x180 [ 412.951190] __do_softirq+0x308/0xb7e [ 412.955005] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 412.959506] ? lock_downgrade+0x900/0x900 [ 412.963664] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 412.968780] ? pvclock_read_flags+0x160/0x160 [ 412.973298] ? lapic_next_event+0x5a/0x90 [ 412.977451] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 412.983009] ? kvm_clock_read+0x18/0x30 [ 412.987016] ? kvm_sched_clock_read+0x9/0x20 [ 412.991430] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 412.996976] ? check_preemption_disabled+0x48/0x280 [ 413.002002] irq_exit+0x17f/0x1c0 [ 413.005462] smp_apic_timer_interrupt+0x1cb/0x760 [ 413.010304] ? smp_reschedule_interrupt+0x109/0x650 [ 413.015326] ? smp_call_function_single_interrupt+0x650/0x650 [ 413.021213] ? interrupt_entry+0xb5/0xc0 [ 413.025278] ? trace_hardirqs_off_caller+0xbb/0x310 [ 413.030295] ? trace_hardirqs_off_caller+0xbb/0x310 [ 413.035324] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 413.040202] ? trace_hardirqs_on_caller+0x310/0x310 [ 413.045219] ? trace_hardirqs_on_caller+0x310/0x310 [ 413.050258] ? task_prio+0x50/0x50 [ 413.053802] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 413.059348] ? check_preemption_disabled+0x48/0x280 [ 413.064375] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 413.069236] apic_timer_interrupt+0xf/0x20 [ 413.073482] [ 413.075748] RIP: 0010:lock_acquire+0x268/0x520 [ 413.080865] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 413.099782] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 413.107511] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 413.114801] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 413.122085] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 413.129372] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 413.136655] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 413.143967] ? lruvec_lru_size+0x450/0x450 [ 413.148214] ? kasan_check_read+0x11/0x20 [ 413.152373] ? lock_release+0xa00/0xa00 [ 413.156358] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 413.161300] down_read_trylock+0xda/0x140 [ 413.165449] ? shrink_slab+0x207/0x8c0 [ 413.169341] ? downgrade_write+0x270/0x270 [ 413.173592] shrink_slab+0x207/0x8c0 [ 413.177310] ? shrink_active_list+0x1f00/0x1f00 [ 413.181995] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 413.187627] ? __lock_acquire+0x62f/0x4c20 [ 413.191896] ? percpu_ref_get_many+0x240/0x240 [ 413.196505] ? print_usage_bug+0xc0/0xc0 [ 413.200580] shrink_node+0x431/0x16b0 [ 413.204385] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 413.209696] ? shrink_node_memcg+0x18f0/0x18f0 [ 413.214286] ? kvm_clock_read+0x18/0x30 [ 413.218269] ? ktime_get+0x2c1/0x400 [ 413.222003] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 413.226505] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 413.232047] ? __cpuset_node_allowed+0x19b/0x660 [ 413.236807] ? mark_held_locks+0x130/0x130 [ 413.241048] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 413.246766] ? zap_class+0x640/0x640 [ 413.250495] do_try_to_free_pages+0x3e7/0x1290 [ 413.255078] ? zap_class+0x640/0x640 [ 413.258813] ? shrink_node+0x16b0/0x16b0 [ 413.262878] ? __lock_is_held+0xb5/0x140 [ 413.266964] try_to_free_pages+0x4d0/0xb90 [ 413.271212] ? do_try_to_free_pages+0x1290/0x1290 [ 413.276084] ? lock_acquire+0x1ed/0x520 [ 413.280060] ? set_page_refcounted+0x280/0x280 [ 413.284650] ? lock_release+0xa00/0xa00 [ 413.288630] ? _raw_spin_unlock_irq+0x60/0x80 [ 413.293127] ? psi_memstall_enter+0x240/0x2b0 [ 413.297638] ? psi_memstall_tick+0x230/0x230 [ 413.302063] __alloc_pages_slowpath+0xa48/0x2de0 [ 413.306852] ? warn_alloc+0x120/0x120 [ 413.310657] ? mark_held_locks+0x130/0x130 [ 413.314903] ? find_get_entry+0xaae/0x1120 [ 413.319162] ? filemap_map_pages+0x1a20/0x1a20 [ 413.323756] ? zap_class+0x640/0x640 [ 413.327479] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 413.333021] ? check_preemption_disabled+0x48/0x280 [ 413.338043] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 413.343698] ? should_fail+0x22d/0xd01 [ 413.347606] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 413.352717] ? zap_class+0x640/0x640 [ 413.356458] ? __lock_is_held+0xb5/0x140 [ 413.360528] ? mark_held_locks+0x130/0x130 [ 413.364765] ? lock_release+0xa00/0xa00 [ 413.368741] ? perf_trace_sched_process_exec+0x860/0x860 [ 413.374197] ? xa_load+0x2ba/0x460 [ 413.377756] ? lock_downgrade+0x900/0x900 [ 413.381930] ? __might_sleep+0x95/0x190 [ 413.385933] __alloc_pages_nodemask+0xad8/0xea0 [ 413.390620] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 413.395640] ? __page_cache_alloc+0x191/0x5c0 [ 413.400155] ? xa_load+0x2e1/0x460 [ 413.403699] ? xa_clear_mark+0x40/0x40 [ 413.407595] ? zap_class+0x640/0x640 [ 413.411320] ? zap_class+0x640/0x640 [ 413.415032] ? zap_class+0x640/0x640 [ 413.418749] ? __do_page_cache_readahead+0x663/0x810 [ 413.423858] ? find_held_lock+0x36/0x1c0 [ 413.427932] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 413.433480] alloc_pages_current+0x173/0x350 [ 413.437901] __page_cache_alloc+0x38c/0x5c0 [ 413.442240] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 413.447179] ? kasan_check_read+0x11/0x20 [ 413.451327] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 413.456611] ? generic_perform_write+0x6a0/0x6a0 [ 413.461378] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 413.466929] ? check_preemption_disabled+0x48/0x280 [ 413.471968] filemap_fault+0x1595/0x25f0 [ 413.476045] ? __lock_page_or_retry+0xa00/0xa00 [ 413.480719] ? mark_held_locks+0x130/0x130 [ 413.484969] ? filemap_map_pages+0xd6b/0x1a20 [ 413.489472] ? lock_downgrade+0x900/0x900 [ 413.493624] ? check_preemption_disabled+0x48/0x280 [ 413.498649] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 413.503585] ? kasan_check_read+0x11/0x20 [ 413.507752] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 413.513064] ? rcu_softirq_qs+0x20/0x20 [ 413.517053] ? filemap_map_pages+0xd92/0x1a20 [ 413.521587] ? find_get_entries_tag+0x1400/0x1400 [ 413.526454] ? debug_object_destroy+0x2b0/0x2b0 [ 413.531154] ? lock_pi_update_atomic+0x150/0x150 [ 413.535935] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 413.541495] ? lock_acquire+0x1ed/0x520 [ 413.545490] ? ext4_filemap_fault+0x7a/0xad [ 413.549820] ? lock_release+0xa00/0xa00 [ 413.553793] ? perf_trace_sched_process_exec+0x860/0x860 [ 413.559247] ? print_usage_bug+0xc0/0xc0 [ 413.563311] ? print_usage_bug+0xc0/0xc0 [ 413.567386] ? down_read+0x8d/0x120 [ 413.571030] ? ext4_filemap_fault+0x7a/0xad [ 413.575356] ? __down_interruptible+0x700/0x700 [ 413.580038] ext4_filemap_fault+0x82/0xad [ 413.584191] __do_fault+0x100/0x6b0 [ 413.587821] ? find_held_lock+0x36/0x1c0 [ 413.591891] ? pmd_devmap_trans_unstable+0x220/0x220 [ 413.597004] ? mark_held_locks+0x130/0x130 [ 413.601258] ? mark_held_locks+0x130/0x130 [ 413.605505] ? kasan_check_read+0x11/0x20 [ 413.609658] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 413.615205] __handle_mm_fault+0x3ea0/0x5be0 [ 413.619621] ? perf_trace_lock+0x7a0/0x7a0 [ 413.623881] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 413.628737] ? __switch_to_asm+0x34/0x70 [ 413.632799] ? __switch_to_asm+0x34/0x70 [ 413.636875] ? zap_class+0x640/0x640 [ 413.640603] ? zap_class+0x640/0x640 [ 413.644318] ? __x64_sys_futex+0x53e/0x6a0 [ 413.648559] ? find_held_lock+0x36/0x1c0 [ 413.652633] ? handle_mm_fault+0x42a/0xc70 [ 413.656874] ? lock_downgrade+0x900/0x900 [ 413.661032] ? check_preemption_disabled+0x48/0x280 [ 413.666064] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 413.671003] ? kasan_check_read+0x11/0x20 [ 413.675162] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 413.680441] ? rcu_softirq_qs+0x20/0x20 [ 413.684416] ? trace_hardirqs_off_caller+0x310/0x310 [ 413.689541] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 413.695083] ? sync_mm_rss+0x9a/0x1c0 [ 413.698894] handle_mm_fault+0x54f/0xc70 [ 413.702968] ? __handle_mm_fault+0x5be0/0x5be0 [ 413.707555] ? find_vma+0x34/0x190 [ 413.711103] __do_page_fault+0x5e8/0xe60 [ 413.715171] ? trace_hardirqs_off+0xb8/0x310 [ 413.719590] do_page_fault+0xf2/0x7e0 [ 413.723396] ? vmalloc_sync_all+0x30/0x30 [ 413.727560] ? error_entry+0x70/0xd0 [ 413.731279] ? trace_hardirqs_off_caller+0xbb/0x310 [ 413.736295] ? trace_hardirqs_on_caller+0xc0/0x310 [ 413.741228] ? syscall_return_slowpath+0x5e0/0x5e0 [ 413.746165] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 413.751017] ? trace_hardirqs_on_caller+0x310/0x310 [ 413.756035] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 413.761541] ? prepare_exit_to_usermode+0x291/0x3b0 [ 413.766561] ? page_fault+0x8/0x30 [ 413.770106] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 413.774964] ? page_fault+0x8/0x30 [ 413.778507] page_fault+0x1e/0x30 [ 413.781965] RIP: 0033:0x45ddf3 [ 413.785179] Code: Bad RIP value. [ 413.788556] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 413.793922] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 413.801193] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 413.808461] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 413.815730] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 413.822997] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 413.830295] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 413.830300] warn_alloc_show_mem: 1 callbacks suppressed [ 413.830307] Mem-Info: [ 413.837592] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 413.842961] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 413.842961] active_file:17 inactive_file:17 isolated_file:0 [ 413.842961] unevictable:0 dirty:4 writeback:0 unstable:0 [ 413.842961] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 413.842961] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 413.842961] free:13550 free_pcp:124 free_cma:0 [ 413.845331] Call Trace: [ 413.854721] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 413.887758] [ 413.890334] 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 [ 413.918118] dump_stack+0x244/0x39d [ 413.920254] lowmem_reserve[]: 0 2818 6321 6321 [ 413.946391] ? dump_stack_print_info.cold.1+0x20/0x20 [ 413.949996] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 413.954585] warn_alloc.cold.116+0xb7/0x1bd [ 413.959740] lowmem_reserve[]: 0 0 3503 3503 [ 413.987102] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 413.991400] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 413.995728] ? lock_downgrade+0x900/0x900 [ 414.000537] lowmem_reserve[]: 0 0 0 0 [ 414.029456] ? trace_hardirqs_off+0xb8/0x310 [ 414.033578] 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 [ 414.037380] ? trace_hardirqs_off+0xb8/0x310 [ 414.041769] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 414.055310] __alloc_pages_slowpath+0x2651/0x2de0 [ 414.059688] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 414.074464] ? warn_alloc+0x120/0x120 [ 414.079261] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 414.094001] ? print_usage_bug+0xc0/0xc0 [ 414.097790] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 414.106618] ? warn_alloc+0x120/0x120 [ 414.110669] 1360 total pagecache pages [ 414.119236] ? warn_alloc+0x120/0x120 [ 414.123019] 0 pages in swap cache [ 414.126893] ? print_usage_bug+0xc0/0xc0 [ 414.130673] Swap cache stats: add 0, delete 0, find 0/0 [ 414.134134] ? print_usage_bug+0xc0/0xc0 [ 414.138182] Free swap = 0kB [ 414.143538] ? __lock_acquire+0x62f/0x4c20 [ 414.147603] Total swap = 0kB [ 414.150620] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 414.154832] 1965979 pages RAM [ 414.157849] ? should_fail+0x22d/0xd01 [ 414.163365] 0 pages HighMem/MovableOnly [ 414.166468] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 414.170337] 342854 pages reserved [ 414.174309] ? __lock_acquire+0x62f/0x4c20 [ 414.179386] 0 pages cma reserved [ 414.182843] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 414.187125] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 414.190407] ? __lock_acquire+0x62f/0x4c20 [ 414.195675] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 414.201997] ? should_fail+0x22d/0xd01 [ 414.206206] syz-fuzzer cpuset=/ mems_allowed=0 [ 414.216437] ? find_held_lock+0x36/0x1c0 [ 414.228933] ? mark_held_locks+0x130/0x130 [ 414.233183] ? mark_held_locks+0x130/0x130 [ 414.237425] ? zap_class+0x640/0x640 [ 414.241162] ? zap_class+0x640/0x640 [ 414.244913] ? print_usage_bug+0xc0/0xc0 [ 414.248980] ? do_raw_spin_unlock+0xa7/0x330 [ 414.253395] ? zap_class+0x640/0x640 [ 414.257118] ? print_usage_bug+0xc0/0xc0 [ 414.261197] ? wq_watchdog_touch+0x9c/0xfe [ 414.265445] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 414.270990] ? check_preemption_disabled+0x48/0x280 [ 414.276034] ? __lock_is_held+0xb5/0x140 [ 414.280114] __alloc_pages_nodemask+0xad8/0xea0 [ 414.284793] ? zap_class+0x640/0x640 [ 414.288517] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 414.293546] ? find_held_lock+0x36/0x1c0 [ 414.297620] ? ____cache_alloc_node+0x1c7/0x1e0 [ 414.302290] ? lock_downgrade+0x900/0x900 [ 414.306469] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 414.312015] cache_grow_begin+0xa5/0x8c0 [ 414.316093] ? do_raw_spin_unlock+0xa7/0x330 [ 414.320513] fallback_alloc+0x204/0x2e0 [ 414.324493] ____cache_alloc_node+0x1c7/0x1e0 [ 414.328996] kmem_cache_alloc_node+0xe3/0x730 [ 414.333500] ? ipv6_get_ifaddr+0x42e/0x620 [ 414.337749] __alloc_skb+0x119/0x770 [ 414.341466] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 414.346747] ? netdev_alloc_frag+0x1f0/0x1f0 [ 414.351201] ? lock_downgrade+0x900/0x900 [ 414.355382] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 414.360930] ? refcount_sub_and_test_checked+0x203/0x310 [ 414.366386] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 414.371845] ? addrconf_rs_timer+0x690/0x690 [ 414.376269] ndisc_alloc_skb+0x144/0x340 [ 414.380340] ndisc_send_rs+0x331/0x6e0 [ 414.384239] addrconf_rs_timer+0x314/0x690 [ 414.388483] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 414.392734] call_timer_fn+0x272/0x920 [ 414.396637] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 414.400874] ? process_timeout+0x40/0x40 [ 414.404962] ? __run_timers+0x7da/0xc70 [ 414.408939] ? _raw_spin_unlock_irq+0x27/0x80 [ 414.413454] ? _raw_spin_unlock_irq+0x27/0x80 [ 414.417959] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 414.422197] ? lockdep_hardirqs_on+0x296/0x5b0 [ 414.426792] ? trace_hardirqs_on+0xbd/0x310 [ 414.431124] ? kasan_check_read+0x11/0x20 [ 414.435292] ? __run_timers+0x7da/0xc70 [ 414.439283] ? trace_hardirqs_off_caller+0x310/0x310 [ 414.444404] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 414.448652] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 414.452905] __run_timers+0x7e5/0xc70 [ 414.456716] ? timer_fixup_init+0x70/0x70 [ 414.460867] ? kasan_check_read+0x11/0x20 [ 414.465034] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 414.470310] ? rcu_softirq_qs+0x20/0x20 [ 414.474288] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 414.479840] ? check_preemption_disabled+0x48/0x280 [ 414.484866] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 414.489644] ? retint_kernel+0x2d/0x2d [ 414.493550] ? trace_hardirqs_on_caller+0xc0/0x310 [ 414.498484] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 414.503247] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 414.508713] ? zap_class+0x640/0x640 [ 414.512439] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 414.517983] ? check_preemption_disabled+0x48/0x280 [ 414.523012] ? __lock_is_held+0xb5/0x140 [ 414.527078] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 414.532619] ? check_preemption_disabled+0x48/0x280 [ 414.537645] run_timer_softirq+0x52/0xb0 [ 414.541714] ? rcu_read_lock_sched_held+0x14f/0x180 [ 414.546737] __do_softirq+0x308/0xb7e [ 414.550544] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 414.555040] ? lock_downgrade+0x900/0x900 [ 414.559194] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 414.564305] ? pvclock_read_flags+0x160/0x160 [ 414.568803] ? lapic_next_event+0x5a/0x90 [ 414.572990] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 414.578562] ? kvm_clock_read+0x18/0x30 [ 414.582537] ? kvm_sched_clock_read+0x9/0x20 [ 414.586955] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 414.592517] ? check_preemption_disabled+0x48/0x280 [ 414.597551] irq_exit+0x17f/0x1c0 [ 414.601028] smp_apic_timer_interrupt+0x1cb/0x760 [ 414.605891] ? smp_reschedule_interrupt+0x109/0x650 [ 414.610914] ? smp_call_function_single_interrupt+0x650/0x650 [ 414.616805] ? interrupt_entry+0xb5/0xc0 [ 414.620871] ? trace_hardirqs_off_caller+0xbb/0x310 [ 414.625887] ? trace_hardirqs_off_caller+0xbb/0x310 [ 414.630926] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 414.635774] ? trace_hardirqs_on_caller+0x310/0x310 [ 414.640805] ? trace_hardirqs_on_caller+0x310/0x310 [ 414.645933] ? task_prio+0x50/0x50 [ 414.649490] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 414.655033] ? check_preemption_disabled+0x48/0x280 [ 414.660058] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 414.664928] apic_timer_interrupt+0xf/0x20 [ 414.669166] [ 414.671427] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 414.676361] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 414.695275] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 414.702989] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 414.710259] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 414.717530] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 414.724800] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 414.732075] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 414.739391] skb_clone+0x1bb/0x500 [ 414.742944] ? skb_split+0x11e0/0x11e0 [ 414.746835] ? preempt_notifier_register+0x200/0x200 [ 414.751939] ? __switch_to_asm+0x34/0x70 [ 414.756001] ? __switch_to_asm+0x34/0x70 [ 414.760064] ? __switch_to_asm+0x40/0x70 [ 414.764123] ? __switch_to_asm+0x34/0x70 [ 414.768190] ? __switch_to_asm+0x40/0x70 [ 414.772255] ? __switch_to_asm+0x40/0x70 [ 414.776315] ? __switch_to_asm+0x34/0x70 [ 414.780376] ? __switch_to_asm+0x34/0x70 [ 414.784441] ? __switch_to_asm+0x40/0x70 [ 414.788513] ? __switch_to_asm+0x34/0x70 [ 414.792581] bpf_clone_redirect+0xb9/0x490 [ 414.796830] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 414.801855] ? __sched_text_start+0x8/0x8 [ 414.806013] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 414.810785] ? find_held_lock+0x36/0x1c0 [ 414.814865] ? lock_acquire+0x1ed/0x520 [ 414.818846] ? bpf_test_run+0x3ee/0x7a0 [ 414.822822] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 414.828363] ? check_preemption_disabled+0x48/0x280 [ 414.833393] ? kasan_check_read+0x11/0x20 [ 414.837548] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 414.842839] ? rcu_softirq_qs+0x20/0x20 [ 414.846827] ? preempt_schedule+0x4d/0x60 [ 414.850994] ? ___preempt_schedule+0x16/0x18 [ 414.855436] ? bpf_test_run+0x271/0x7a0 [ 414.859430] ? netlink_diag_dump+0x2a0/0x2a0 [ 414.863859] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 414.869454] ? bpf_test_init.isra.10+0x70/0x100 [ 414.874134] ? bpf_prog_test_run_skb+0x762/0xd60 [ 414.878908] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 414.883761] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 414.889328] ? fput+0x130/0x1a0 [ 414.892618] ? __bpf_prog_get+0x9b/0x290 [ 414.896700] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 414.901561] ? bpf_prog_test_run+0x130/0x1a0 [ 414.905978] ? __x64_sys_bpf+0x3d8/0x520 [ 414.910039] ? bpf_prog_get+0x20/0x20 [ 414.913866] ? do_syscall_64+0x1b9/0x820 [ 414.917960] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 414.923332] ? syscall_return_slowpath+0x5e0/0x5e0 [ 414.928264] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 414.933111] ? trace_hardirqs_on_caller+0x310/0x310 [ 414.938136] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 414.943173] ? prepare_exit_to_usermode+0x291/0x3b0 [ 414.948395] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 414.953269] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 414.958657] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 414.958743] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 414.965604] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 414.965609] Call Trace: [ 414.965617] [ 414.965635] dump_stack+0x244/0x39d [ 414.965654] ? dump_stack_print_info.cold.1+0x20/0x20 [ 414.972296] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 414.981525] warn_alloc.cold.116+0xb7/0x1bd [ 414.984084] syz-executor4 cpuset=syz4 mems_allowed=0 [ 414.986232] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 415.019728] ? lock_downgrade+0x900/0x900 [ 415.023896] ? trace_hardirqs_off+0xb8/0x310 [ 415.028318] ? trace_hardirqs_off+0xb8/0x310 [ 415.032743] __alloc_pages_slowpath+0x2651/0x2de0 [ 415.037618] ? warn_alloc+0x120/0x120 [ 415.041446] ? print_usage_bug+0xc0/0xc0 [ 415.045525] ? warn_alloc+0x120/0x120 [ 415.049336] ? warn_alloc+0x120/0x120 [ 415.053153] ? print_usage_bug+0xc0/0xc0 [ 415.057221] ? kvm_clock_read+0x18/0x30 [ 415.061233] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 415.066256] ? print_usage_bug+0xc0/0xc0 [ 415.070320] ? __lock_acquire+0x62f/0x4c20 [ 415.074574] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 415.080602] ? should_fail+0x22d/0xd01 [ 415.084495] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 415.089608] ? __lock_acquire+0x62f/0x4c20 [ 415.093891] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 415.098999] ? __lock_acquire+0x62f/0x4c20 [ 415.103233] ? should_fail+0x22d/0xd01 [ 415.107135] ? mark_held_locks+0x130/0x130 [ 415.111384] ? mark_held_locks+0x130/0x130 [ 415.115630] ? zap_class+0x640/0x640 [ 415.119346] ? print_usage_bug+0xc0/0xc0 [ 415.123461] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 415.129008] ? check_preemption_disabled+0x48/0x280 [ 415.134040] ? __lock_is_held+0xb5/0x140 [ 415.138110] __alloc_pages_nodemask+0xad8/0xea0 [ 415.142807] ? zap_class+0x640/0x640 [ 415.146536] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 415.151590] ? find_held_lock+0x36/0x1c0 [ 415.155668] ? ____cache_alloc_node+0x1c7/0x1e0 [ 415.160346] ? lock_downgrade+0x900/0x900 [ 415.164511] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 415.170074] cache_grow_begin+0xa5/0x8c0 [ 415.174152] ? do_raw_spin_unlock+0xa7/0x330 [ 415.178584] fallback_alloc+0x204/0x2e0 [ 415.182570] ____cache_alloc_node+0x1c7/0x1e0 [ 415.187073] kmem_cache_alloc_node+0xe3/0x730 [ 415.191574] ? ipv6_get_ifaddr+0x42e/0x620 [ 415.195822] __alloc_skb+0x119/0x770 [ 415.199537] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 415.204837] ? netdev_alloc_frag+0x1f0/0x1f0 [ 415.209250] ? lock_downgrade+0x900/0x900 [ 415.213415] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 415.218962] ? refcount_sub_and_test_checked+0x203/0x310 [ 415.224417] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 415.229871] ? addrconf_rs_timer+0x690/0x690 [ 415.234298] ndisc_alloc_skb+0x144/0x340 [ 415.238368] ndisc_send_rs+0x331/0x6e0 [ 415.242261] addrconf_rs_timer+0x314/0x690 [ 415.246502] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 415.250753] call_timer_fn+0x272/0x920 [ 415.254646] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 415.258885] ? process_timeout+0x40/0x40 [ 415.262963] ? mark_held_locks+0xc7/0x130 [ 415.267113] ? _raw_spin_unlock_irq+0x27/0x80 [ 415.271614] ? _raw_spin_unlock_irq+0x27/0x80 [ 415.276115] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 415.280360] ? lockdep_hardirqs_on+0x296/0x5b0 [ 415.284958] ? trace_hardirqs_on+0xbd/0x310 [ 415.289282] ? kasan_check_read+0x11/0x20 [ 415.293430] ? __run_timers+0x7da/0xc70 [ 415.297439] ? trace_hardirqs_off_caller+0x310/0x310 [ 415.302575] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 415.306808] __run_timers+0x7e5/0xc70 [ 415.310624] ? timer_fixup_init+0x70/0x70 [ 415.314778] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 415.319802] ? zap_class+0x640/0x640 [ 415.323526] ? print_usage_bug+0xc0/0xc0 [ 415.327594] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 415.332794] ? find_held_lock+0x36/0x1c0 [ 415.336863] ? zap_class+0x640/0x640 [ 415.340586] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 415.346128] ? check_preemption_disabled+0x48/0x280 [ 415.351208] ? __lock_is_held+0xb5/0x140 [ 415.355278] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 415.360820] ? check_preemption_disabled+0x48/0x280 [ 415.365867] run_timer_softirq+0x52/0xb0 [ 415.369952] ? rcu_read_lock_sched_held+0x14f/0x180 [ 415.374978] __do_softirq+0x308/0xb7e [ 415.378800] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 415.383308] ? lock_downgrade+0x900/0x900 [ 415.387482] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 415.392608] ? pvclock_read_flags+0x160/0x160 [ 415.397108] ? lapic_next_event+0x5a/0x90 [ 415.401283] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 415.406826] ? kvm_clock_read+0x18/0x30 [ 415.410816] ? kvm_sched_clock_read+0x9/0x20 [ 415.415231] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 415.420778] ? check_preemption_disabled+0x48/0x280 [ 415.425808] irq_exit+0x17f/0x1c0 [ 415.429267] smp_apic_timer_interrupt+0x1cb/0x760 [ 415.434108] ? smp_reschedule_interrupt+0x109/0x650 [ 415.439146] ? smp_call_function_single_interrupt+0x650/0x650 [ 415.445033] ? interrupt_entry+0xb5/0xc0 [ 415.449098] ? trace_hardirqs_off_caller+0xbb/0x310 [ 415.454112] ? trace_hardirqs_off_caller+0xbb/0x310 [ 415.459155] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 415.464002] ? trace_hardirqs_on_caller+0x310/0x310 [ 415.469018] ? trace_hardirqs_on_caller+0x310/0x310 [ 415.474037] ? task_prio+0x50/0x50 [ 415.477585] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 415.483126] ? check_preemption_disabled+0x48/0x280 [ 415.488175] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 415.493031] apic_timer_interrupt+0xf/0x20 [ 415.497265] [ 415.499509] RIP: 0010:lock_acquire+0x268/0x520 [ 415.504095] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 415.523017] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 415.530737] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 415.538024] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 415.545299] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 415.552571] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 415.559844] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 415.567166] ? lruvec_lru_size+0x450/0x450 [ 415.571407] ? kasan_check_read+0x11/0x20 [ 415.575562] ? lock_release+0xa00/0xa00 [ 415.579549] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 415.584497] down_read_trylock+0xda/0x140 [ 415.588646] ? shrink_slab+0x207/0x8c0 [ 415.592543] ? downgrade_write+0x270/0x270 [ 415.596791] shrink_slab+0x207/0x8c0 [ 415.600508] ? shrink_active_list+0x1f00/0x1f00 [ 415.605189] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 415.610820] ? __lock_acquire+0x62f/0x4c20 [ 415.615060] ? percpu_ref_get_many+0x240/0x240 [ 415.619664] ? print_usage_bug+0xc0/0xc0 [ 415.623738] shrink_node+0x431/0x16b0 [ 415.627545] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 415.632849] ? shrink_node_memcg+0x18f0/0x18f0 [ 415.637455] ? kvm_clock_read+0x18/0x30 [ 415.641434] ? ktime_get+0x2c1/0x400 [ 415.645162] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 415.649665] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 415.655235] ? __cpuset_node_allowed+0x19b/0x660 [ 415.659995] ? mark_held_locks+0x130/0x130 [ 415.664244] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 415.669964] ? zap_class+0x640/0x640 [ 415.673719] do_try_to_free_pages+0x3e7/0x1290 [ 415.678308] ? zap_class+0x640/0x640 [ 415.682042] ? shrink_node+0x16b0/0x16b0 [ 415.686106] ? __lock_is_held+0xb5/0x140 [ 415.690197] try_to_free_pages+0x4d0/0xb90 [ 415.694446] ? do_try_to_free_pages+0x1290/0x1290 [ 415.699311] ? lock_acquire+0x1ed/0x520 [ 415.703307] ? set_page_refcounted+0x280/0x280 [ 415.707903] ? lock_release+0xa00/0xa00 [ 415.711889] ? _raw_spin_unlock_irq+0x60/0x80 [ 415.716408] ? psi_memstall_enter+0x240/0x2b0 [ 415.720906] ? psi_memstall_tick+0x230/0x230 [ 415.725357] __alloc_pages_slowpath+0xa48/0x2de0 [ 415.730153] ? warn_alloc+0x120/0x120 [ 415.733959] ? mark_held_locks+0x130/0x130 [ 415.738208] ? find_get_entry+0xaae/0x1120 [ 415.742457] ? filemap_map_pages+0x1a20/0x1a20 [ 415.747047] ? zap_class+0x640/0x640 [ 415.750772] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 415.756313] ? check_preemption_disabled+0x48/0x280 [ 415.761331] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 415.766872] ? should_fail+0x22d/0xd01 [ 415.770787] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 415.775900] ? zap_class+0x640/0x640 [ 415.779651] ? __lock_is_held+0xb5/0x140 [ 415.783725] ? mark_held_locks+0x130/0x130 [ 415.787968] ? lock_release+0xa00/0xa00 [ 415.791945] ? perf_trace_sched_process_exec+0x860/0x860 [ 415.797524] ? xa_load+0x2ba/0x460 [ 415.801067] ? lock_downgrade+0x900/0x900 [ 415.805226] ? __might_sleep+0x95/0x190 [ 415.809210] __alloc_pages_nodemask+0xad8/0xea0 [ 415.813905] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 415.818952] ? __page_cache_alloc+0x191/0x5c0 [ 415.823449] ? xa_load+0x2e1/0x460 [ 415.827022] ? xa_clear_mark+0x40/0x40 [ 415.830919] ? zap_class+0x640/0x640 [ 415.834643] ? zap_class+0x640/0x640 [ 415.838356] ? zap_class+0x640/0x640 [ 415.842089] ? __do_page_cache_readahead+0x663/0x810 [ 415.847201] ? find_held_lock+0x36/0x1c0 [ 415.851270] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 415.856814] alloc_pages_current+0x173/0x350 [ 415.861233] __page_cache_alloc+0x38c/0x5c0 [ 415.865554] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 415.870487] ? kasan_check_read+0x11/0x20 [ 415.874638] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 415.879942] ? generic_perform_write+0x6a0/0x6a0 [ 415.884702] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 415.890244] ? check_preemption_disabled+0x48/0x280 [ 415.895273] filemap_fault+0x1595/0x25f0 [ 415.899354] ? __lock_page_or_retry+0xa00/0xa00 [ 415.904031] ? mark_held_locks+0x130/0x130 [ 415.908282] ? filemap_map_pages+0xd6b/0x1a20 [ 415.912780] ? lock_downgrade+0x900/0x900 [ 415.916937] ? check_preemption_disabled+0x48/0x280 [ 415.921981] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 415.926922] ? kasan_check_read+0x11/0x20 [ 415.931073] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 415.936353] ? rcu_softirq_qs+0x20/0x20 [ 415.940350] ? filemap_map_pages+0xd92/0x1a20 [ 415.944861] ? find_get_entries_tag+0x1400/0x1400 [ 415.949712] ? debug_object_destroy+0x2b0/0x2b0 [ 415.954402] ? lock_pi_update_atomic+0x150/0x150 [ 415.959192] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 415.964755] ? lock_acquire+0x1ed/0x520 [ 415.968756] ? ext4_filemap_fault+0x7a/0xad [ 415.973086] ? lock_release+0xa00/0xa00 [ 415.977073] ? perf_trace_sched_process_exec+0x860/0x860 [ 415.982529] ? print_usage_bug+0xc0/0xc0 [ 415.986593] ? print_usage_bug+0xc0/0xc0 [ 415.990671] ? down_read+0x8d/0x120 [ 415.994299] ? ext4_filemap_fault+0x7a/0xad [ 415.998639] ? __down_interruptible+0x700/0x700 [ 416.003334] ext4_filemap_fault+0x82/0xad [ 416.007489] __do_fault+0x100/0x6b0 [ 416.011132] ? find_held_lock+0x36/0x1c0 [ 416.015208] ? pmd_devmap_trans_unstable+0x220/0x220 [ 416.020334] ? mark_held_locks+0x130/0x130 [ 416.024575] ? mark_held_locks+0x130/0x130 [ 416.028830] ? kasan_check_read+0x11/0x20 [ 416.032994] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 416.038541] __handle_mm_fault+0x3ea0/0x5be0 [ 416.042958] ? perf_trace_lock+0x7a0/0x7a0 [ 416.047203] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 416.052052] ? __switch_to_asm+0x34/0x70 [ 416.056129] ? __switch_to_asm+0x34/0x70 [ 416.060217] ? zap_class+0x640/0x640 [ 416.063934] ? zap_class+0x640/0x640 [ 416.067647] ? __x64_sys_futex+0x53e/0x6a0 [ 416.071890] ? find_held_lock+0x36/0x1c0 [ 416.075970] ? handle_mm_fault+0x42a/0xc70 [ 416.080243] ? lock_downgrade+0x900/0x900 [ 416.084412] ? check_preemption_disabled+0x48/0x280 [ 416.089453] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 416.094387] ? kasan_check_read+0x11/0x20 [ 416.098539] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 416.103823] ? rcu_softirq_qs+0x20/0x20 [ 416.107799] ? trace_hardirqs_off_caller+0x310/0x310 [ 416.112927] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 416.118480] ? sync_mm_rss+0x9a/0x1c0 [ 416.122286] handle_mm_fault+0x54f/0xc70 [ 416.126357] ? __handle_mm_fault+0x5be0/0x5be0 [ 416.130961] ? find_vma+0x34/0x190 [ 416.134510] __do_page_fault+0x5e8/0xe60 [ 416.138594] ? trace_hardirqs_off+0xb8/0x310 [ 416.143014] do_page_fault+0xf2/0x7e0 [ 416.146816] ? vmalloc_sync_all+0x30/0x30 [ 416.150966] ? error_entry+0x70/0xd0 [ 416.154683] ? trace_hardirqs_off_caller+0xbb/0x310 [ 416.159700] ? trace_hardirqs_on_caller+0xc0/0x310 [ 416.164635] ? syscall_return_slowpath+0x5e0/0x5e0 [ 416.169567] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 416.174413] ? trace_hardirqs_on_caller+0x310/0x310 [ 416.179429] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 416.184904] ? prepare_exit_to_usermode+0x291/0x3b0 [ 416.189952] ? page_fault+0x8/0x30 [ 416.193502] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 416.198348] ? page_fault+0x8/0x30 [ 416.201895] page_fault+0x1e/0x30 [ 416.205354] RIP: 0033:0x45ddf3 [ 416.208562] Code: Bad RIP value. [ 416.211927] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 416.217288] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 416.224557] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 416.231827] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 416.239109] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 416.246381] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 416.253684] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 416.253689] warn_alloc_show_mem: 1 callbacks suppressed [ 416.253696] Mem-Info: [ 416.260977] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 416.266348] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 416.266348] active_file:17 inactive_file:17 isolated_file:0 [ 416.266348] unevictable:0 dirty:4 writeback:0 unstable:0 [ 416.266348] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 416.266348] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 416.266348] free:13550 free_pcp:124 free_cma:0 [ 416.268718] Call Trace: [ 416.278113] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 416.311174] [ 416.313748] 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 [ 416.341524] dump_stack+0x244/0x39d [ 416.343669] lowmem_reserve[]: 0 2818 6321 6321 [ 416.369832] ? dump_stack_print_info.cold.1+0x20/0x20 [ 416.373430] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 416.378015] warn_alloc.cold.116+0xb7/0x1bd [ 416.383168] lowmem_reserve[]: 0 0 3503 3503 [ 416.410530] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 416.414827] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 416.419255] ? lock_downgrade+0x900/0x900 [ 416.424097] lowmem_reserve[]: 0 0 0 0 [ 416.453018] ? trace_hardirqs_off+0xb8/0x310 [ 416.457162] 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 [ 416.460963] ? trace_hardirqs_off+0xb8/0x310 [ 416.465340] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 416.478891] __alloc_pages_slowpath+0x2651/0x2de0 [ 416.483264] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 416.498030] ? warn_alloc+0x120/0x120 [ 416.502827] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 416.517565] ? warn_alloc+0x120/0x120 [ 416.521343] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 416.530188] ? warn_alloc+0x120/0x120 [ 416.533960] 1360 total pagecache pages [ 416.542535] ? print_usage_bug+0xc0/0xc0 [ 416.546313] 0 pages in swap cache [ 416.550191] ? debug_object_activate+0x402/0x600 [ 416.554226] Swap cache stats: add 0, delete 0, find 0/0 [ 416.557669] ? print_usage_bug+0xc0/0xc0 [ 416.562395] Free swap = 0kB [ 416.567765] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 416.571796] Total swap = 0kB [ 416.574811] ? should_fail+0x22d/0xd01 [ 416.580320] 1965979 pages RAM [ 416.583333] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 416.587195] 0 pages HighMem/MovableOnly [ 416.590298] ? __lock_acquire+0x62f/0x4c20 [ 416.595376] 342854 pages reserved [ 416.599344] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 416.603554] 0 pages cma reserved [ 416.607003] ? __lock_acquire+0x62f/0x4c20 [ 416.612194] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 416.615436] ? should_fail+0x22d/0xd01 [ 416.615461] ? mark_held_locks+0x130/0x130 [ 416.619732] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 416.626159] ? mark_held_locks+0x130/0x130 [ 416.630022] syz-fuzzer cpuset=/ mems_allowed=0 [ 416.634251] ? try_to_wake_up+0x11c/0x1490 [ 416.657498] ? lock_downgrade+0x900/0x900 [ 416.661655] ? zap_class+0x640/0x640 [ 416.665373] ? print_usage_bug+0xc0/0xc0 [ 416.669442] ? trace_hardirqs_off+0xb8/0x310 [ 416.673854] ? kasan_check_read+0x11/0x20 [ 416.678011] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 416.683558] ? check_preemption_disabled+0x48/0x280 [ 416.688587] ? __lock_is_held+0xb5/0x140 [ 416.692667] __alloc_pages_nodemask+0xad8/0xea0 [ 416.697369] ? zap_class+0x640/0x640 [ 416.701091] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 416.706123] ? find_held_lock+0x36/0x1c0 [ 416.710222] ? ____cache_alloc_node+0x1c7/0x1e0 [ 416.714898] ? lock_downgrade+0x900/0x900 [ 416.719059] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 416.724609] cache_grow_begin+0xa5/0x8c0 [ 416.728679] ? do_raw_spin_unlock+0xa7/0x330 [ 416.733109] fallback_alloc+0x204/0x2e0 [ 416.737118] ____cache_alloc_node+0x1c7/0x1e0 [ 416.741647] kmem_cache_alloc_node+0xe3/0x730 [ 416.746159] ? ipv6_get_ifaddr+0x42e/0x620 [ 416.750408] __alloc_skb+0x119/0x770 [ 416.754131] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 416.759432] ? netdev_alloc_frag+0x1f0/0x1f0 [ 416.763844] ? lock_downgrade+0x900/0x900 [ 416.768004] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 416.773551] ? refcount_sub_and_test_checked+0x203/0x310 [ 416.779033] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 416.784505] ? addrconf_rs_timer+0x690/0x690 [ 416.788931] ndisc_alloc_skb+0x144/0x340 [ 416.793030] ndisc_send_rs+0x331/0x6e0 [ 416.796932] addrconf_rs_timer+0x314/0x690 [ 416.801182] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 416.805454] call_timer_fn+0x272/0x920 [ 416.809347] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 416.813582] ? process_timeout+0x40/0x40 [ 416.817665] ? __run_timers+0x7da/0xc70 [ 416.821643] ? _raw_spin_unlock_irq+0x27/0x80 [ 416.826168] ? _raw_spin_unlock_irq+0x27/0x80 [ 416.830673] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 416.834929] ? lockdep_hardirqs_on+0x296/0x5b0 [ 416.839514] ? trace_hardirqs_on+0xbd/0x310 [ 416.843839] ? kasan_check_read+0x11/0x20 [ 416.847987] ? __run_timers+0x7da/0xc70 [ 416.851966] ? trace_hardirqs_off_caller+0x310/0x310 [ 416.857075] ? __queue_work+0x1440/0x1440 [ 416.861234] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 416.865473] __run_timers+0x7e5/0xc70 [ 416.869286] ? timer_fixup_init+0x70/0x70 [ 416.873447] ? kasan_check_read+0x11/0x20 [ 416.877605] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 416.882891] ? rcu_softirq_qs+0x20/0x20 [ 416.886871] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 416.892419] ? check_preemption_disabled+0x48/0x280 [ 416.897448] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 416.902231] ? retint_kernel+0x2d/0x2d [ 416.906122] ? trace_hardirqs_on_caller+0xc0/0x310 [ 416.911072] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 416.915837] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 416.921324] ? zap_class+0x640/0x640 [ 416.925053] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 416.930607] ? check_preemption_disabled+0x48/0x280 [ 416.935638] ? __lock_is_held+0xb5/0x140 [ 416.939705] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 416.945247] ? check_preemption_disabled+0x48/0x280 [ 416.950490] run_timer_softirq+0x52/0xb0 [ 416.954558] ? rcu_read_lock_sched_held+0x14f/0x180 [ 416.959575] __do_softirq+0x308/0xb7e [ 416.963380] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 416.967879] ? lock_downgrade+0x900/0x900 [ 416.972033] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 416.977156] ? pvclock_read_flags+0x160/0x160 [ 416.981656] ? lapic_next_event+0x5a/0x90 [ 416.985809] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 416.991451] ? kvm_clock_read+0x18/0x30 [ 416.995455] ? kvm_sched_clock_read+0x9/0x20 [ 416.999884] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 417.005433] ? check_preemption_disabled+0x48/0x280 [ 417.010471] irq_exit+0x17f/0x1c0 [ 417.013934] smp_apic_timer_interrupt+0x1cb/0x760 [ 417.018791] ? smp_reschedule_interrupt+0x109/0x650 [ 417.023810] ? smp_call_function_single_interrupt+0x650/0x650 [ 417.029734] ? interrupt_entry+0xb5/0xc0 [ 417.033799] ? trace_hardirqs_off_caller+0xbb/0x310 [ 417.038821] ? trace_hardirqs_off_caller+0xbb/0x310 [ 417.043844] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 417.048689] ? trace_hardirqs_on_caller+0x310/0x310 [ 417.053707] ? trace_hardirqs_on_caller+0x310/0x310 [ 417.058730] ? task_prio+0x50/0x50 [ 417.062280] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 417.067821] ? check_preemption_disabled+0x48/0x280 [ 417.072848] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 417.077704] apic_timer_interrupt+0xf/0x20 [ 417.082047] [ 417.084295] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 417.089230] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 417.108163] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 417.115878] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 417.123167] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 417.130467] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 417.137735] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 417.145017] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 417.152335] skb_clone+0x1bb/0x500 [ 417.155881] ? skb_split+0x11e0/0x11e0 [ 417.159778] ? preempt_notifier_register+0x200/0x200 [ 417.164897] ? __switch_to_asm+0x34/0x70 [ 417.168963] ? __switch_to_asm+0x34/0x70 [ 417.173023] ? __switch_to_asm+0x40/0x70 [ 417.177086] ? __switch_to_asm+0x34/0x70 [ 417.181159] ? __switch_to_asm+0x40/0x70 [ 417.185228] ? __switch_to_asm+0x40/0x70 [ 417.189295] ? __switch_to_asm+0x34/0x70 [ 417.193386] ? __switch_to_asm+0x34/0x70 [ 417.197452] ? __switch_to_asm+0x40/0x70 [ 417.201510] ? __switch_to_asm+0x34/0x70 [ 417.205581] bpf_clone_redirect+0xb9/0x490 [ 417.209843] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 417.214869] ? __sched_text_start+0x8/0x8 [ 417.219019] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 417.223807] ? find_held_lock+0x36/0x1c0 [ 417.227878] ? lock_acquire+0x1ed/0x520 [ 417.231854] ? bpf_test_run+0x3ee/0x7a0 [ 417.235833] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 417.241381] ? check_preemption_disabled+0x48/0x280 [ 417.246421] ? kasan_check_read+0x11/0x20 [ 417.250570] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 417.255848] ? rcu_softirq_qs+0x20/0x20 [ 417.259829] ? preempt_schedule+0x4d/0x60 [ 417.263979] ? ___preempt_schedule+0x16/0x18 [ 417.268406] ? bpf_test_run+0x271/0x7a0 [ 417.272403] ? netlink_diag_dump+0x2a0/0x2a0 [ 417.276835] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 417.282377] ? bpf_test_init.isra.10+0x70/0x100 [ 417.287057] ? bpf_prog_test_run_skb+0x762/0xd60 [ 417.291833] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 417.296685] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 417.302226] ? fput+0x130/0x1a0 [ 417.305518] ? __bpf_prog_get+0x9b/0x290 [ 417.309590] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 417.314443] ? bpf_prog_test_run+0x130/0x1a0 [ 417.318856] ? __x64_sys_bpf+0x3d8/0x520 [ 417.322917] ? bpf_prog_get+0x20/0x20 [ 417.326739] ? do_syscall_64+0x1b9/0x820 [ 417.330817] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 417.336191] ? syscall_return_slowpath+0x5e0/0x5e0 [ 417.341122] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 417.345990] ? trace_hardirqs_on_caller+0x310/0x310 [ 417.351010] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 417.356041] ? prepare_exit_to_usermode+0x291/0x3b0 [ 417.361066] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 417.365937] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 417.371330] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 417.371452] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 417.378268] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 417.378278] Call Trace: [ 417.384899] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 417.394104] [ 417.396700] syz-executor4 cpuset=syz4 mems_allowed=0 [ 417.407191] dump_stack+0x244/0x39d [ 417.418043] ? dump_stack_print_info.cold.1+0x20/0x20 [ 417.423250] warn_alloc.cold.116+0xb7/0x1bd [ 417.427578] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 417.432427] ? lock_downgrade+0x900/0x900 [ 417.436591] ? trace_hardirqs_off+0xb8/0x310 [ 417.441010] ? trace_hardirqs_off+0xb8/0x310 [ 417.445437] __alloc_pages_slowpath+0x2651/0x2de0 [ 417.450316] ? warn_alloc+0x120/0x120 [ 417.454125] ? print_usage_bug+0xc0/0xc0 [ 417.458210] ? warn_alloc+0x120/0x120 [ 417.462022] ? warn_alloc+0x120/0x120 [ 417.465828] ? print_usage_bug+0xc0/0xc0 [ 417.469896] ? print_usage_bug+0xc0/0xc0 [ 417.473968] ? __lock_acquire+0x62f/0x4c20 [ 417.478213] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 417.483754] ? should_fail+0x22d/0xd01 [ 417.487647] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 417.492756] ? __lock_acquire+0x62f/0x4c20 [ 417.497002] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 417.502107] ? __lock_acquire+0x62f/0x4c20 [ 417.506348] ? should_fail+0x22d/0xd01 [ 417.510239] ? find_held_lock+0x36/0x1c0 [ 417.514313] ? mark_held_locks+0x130/0x130 [ 417.518555] ? mark_held_locks+0x130/0x130 [ 417.522824] ? zap_class+0x640/0x640 [ 417.526542] ? zap_class+0x640/0x640 [ 417.530261] ? print_usage_bug+0xc0/0xc0 [ 417.534324] ? do_raw_spin_unlock+0xa7/0x330 [ 417.538733] ? zap_class+0x640/0x640 [ 417.542448] ? print_usage_bug+0xc0/0xc0 [ 417.546512] ? wq_watchdog_touch+0x9c/0xfe [ 417.550756] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 417.556300] ? check_preemption_disabled+0x48/0x280 [ 417.561332] ? __lock_is_held+0xb5/0x140 [ 417.565405] __alloc_pages_nodemask+0xad8/0xea0 [ 417.570076] ? zap_class+0x640/0x640 [ 417.573795] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 417.578829] ? find_held_lock+0x36/0x1c0 [ 417.582903] ? ____cache_alloc_node+0x1c7/0x1e0 [ 417.587591] ? lock_downgrade+0x900/0x900 [ 417.591753] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 417.597301] cache_grow_begin+0xa5/0x8c0 [ 417.601367] ? do_raw_spin_unlock+0xa7/0x330 [ 417.605801] fallback_alloc+0x204/0x2e0 [ 417.609782] ____cache_alloc_node+0x1c7/0x1e0 [ 417.614286] kmem_cache_alloc_node+0xe3/0x730 [ 417.618785] ? ipv6_get_ifaddr+0x42e/0x620 [ 417.623038] __alloc_skb+0x119/0x770 [ 417.626753] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 417.632041] ? netdev_alloc_frag+0x1f0/0x1f0 [ 417.636452] ? lock_downgrade+0x900/0x900 [ 417.640611] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 417.646158] ? refcount_sub_and_test_checked+0x203/0x310 [ 417.651653] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 417.657115] ? addrconf_rs_timer+0x690/0x690 [ 417.661574] ndisc_alloc_skb+0x144/0x340 [ 417.665659] ndisc_send_rs+0x331/0x6e0 [ 417.669552] addrconf_rs_timer+0x314/0x690 [ 417.673812] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 417.678065] call_timer_fn+0x272/0x920 [ 417.681957] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 417.686192] ? process_timeout+0x40/0x40 [ 417.690266] ? mark_held_locks+0xc7/0x130 [ 417.694419] ? _raw_spin_unlock_irq+0x27/0x80 [ 417.698924] ? _raw_spin_unlock_irq+0x27/0x80 [ 417.703428] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 417.707675] ? lockdep_hardirqs_on+0x296/0x5b0 [ 417.712262] ? trace_hardirqs_on+0xbd/0x310 [ 417.716585] ? kasan_check_read+0x11/0x20 [ 417.720741] ? __run_timers+0x7da/0xc70 [ 417.724720] ? trace_hardirqs_off_caller+0x310/0x310 [ 417.729843] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 417.734087] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 417.738322] __run_timers+0x7e5/0xc70 [ 417.742147] ? timer_fixup_init+0x70/0x70 [ 417.746301] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 417.751330] ? zap_class+0x640/0x640 [ 417.755064] ? print_usage_bug+0xc0/0xc0 [ 417.759129] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 417.764350] ? find_held_lock+0x36/0x1c0 [ 417.768419] ? zap_class+0x640/0x640 [ 417.772160] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 417.777705] ? check_preemption_disabled+0x48/0x280 [ 417.782736] ? __lock_is_held+0xb5/0x140 [ 417.786800] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 417.792344] ? check_preemption_disabled+0x48/0x280 [ 417.797371] run_timer_softirq+0x52/0xb0 [ 417.801464] ? rcu_read_lock_sched_held+0x14f/0x180 [ 417.806490] __do_softirq+0x308/0xb7e [ 417.810314] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 417.814813] ? lock_downgrade+0x900/0x900 [ 417.818968] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 417.824080] ? pvclock_read_flags+0x160/0x160 [ 417.828581] ? lapic_next_event+0x5a/0x90 [ 417.832739] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 417.838291] ? kvm_clock_read+0x18/0x30 [ 417.842269] ? kvm_sched_clock_read+0x9/0x20 [ 417.846699] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 417.852259] ? check_preemption_disabled+0x48/0x280 [ 417.857288] irq_exit+0x17f/0x1c0 [ 417.860750] smp_apic_timer_interrupt+0x1cb/0x760 [ 417.865595] ? smp_reschedule_interrupt+0x109/0x650 [ 417.870613] ? smp_call_function_single_interrupt+0x650/0x650 [ 417.876498] ? interrupt_entry+0xb5/0xc0 [ 417.880563] ? trace_hardirqs_off_caller+0xbb/0x310 [ 417.885580] ? trace_hardirqs_off_caller+0xbb/0x310 [ 417.890601] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 417.895447] ? trace_hardirqs_on_caller+0x310/0x310 [ 417.900465] ? trace_hardirqs_on_caller+0x310/0x310 [ 417.905482] ? task_prio+0x50/0x50 [ 417.909037] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 417.914583] ? check_preemption_disabled+0x48/0x280 [ 417.919625] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 417.924493] apic_timer_interrupt+0xf/0x20 [ 417.928725] [ 417.930969] RIP: 0010:lock_acquire+0x268/0x520 [ 417.935566] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 417.954488] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 417.962237] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 417.969515] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 417.976783] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 417.984069] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 417.991347] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 417.998663] ? lruvec_lru_size+0x450/0x450 [ 418.002906] ? kasan_check_read+0x11/0x20 [ 418.007091] ? lock_release+0xa00/0xa00 [ 418.011076] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 418.016020] down_read_trylock+0xda/0x140 [ 418.020190] ? shrink_slab+0x207/0x8c0 [ 418.024082] ? downgrade_write+0x270/0x270 [ 418.028331] shrink_slab+0x207/0x8c0 [ 418.032048] ? shrink_active_list+0x1f00/0x1f00 [ 418.036730] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 418.042364] ? __lock_acquire+0x62f/0x4c20 [ 418.046605] ? percpu_ref_get_many+0x240/0x240 [ 418.051211] ? print_usage_bug+0xc0/0xc0 [ 418.055296] shrink_node+0x431/0x16b0 [ 418.059104] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 418.064412] ? shrink_node_memcg+0x18f0/0x18f0 [ 418.069015] ? kvm_clock_read+0x18/0x30 [ 418.072993] ? ktime_get+0x2c1/0x400 [ 418.076714] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 418.081219] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 418.086760] ? __cpuset_node_allowed+0x19b/0x660 [ 418.091519] ? mark_held_locks+0x130/0x130 [ 418.095763] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 418.101512] ? zap_class+0x640/0x640 [ 418.105261] do_try_to_free_pages+0x3e7/0x1290 [ 418.109864] ? zap_class+0x640/0x640 [ 418.113596] ? shrink_node+0x16b0/0x16b0 [ 418.117664] ? __lock_is_held+0xb5/0x140 [ 418.121742] try_to_free_pages+0x4d0/0xb90 [ 418.125989] ? do_try_to_free_pages+0x1290/0x1290 [ 418.130852] ? lock_acquire+0x1ed/0x520 [ 418.134832] ? set_page_refcounted+0x280/0x280 [ 418.139425] ? lock_release+0xa00/0xa00 [ 418.143424] ? _raw_spin_unlock_irq+0x60/0x80 [ 418.147936] ? psi_memstall_enter+0x240/0x2b0 [ 418.152439] ? psi_memstall_tick+0x230/0x230 [ 418.156882] __alloc_pages_slowpath+0xa48/0x2de0 [ 418.161681] ? warn_alloc+0x120/0x120 [ 418.165487] ? mark_held_locks+0x130/0x130 [ 418.169730] ? find_get_entry+0xaae/0x1120 [ 418.173980] ? filemap_map_pages+0x1a20/0x1a20 [ 418.178570] ? zap_class+0x640/0x640 [ 418.182338] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 418.187881] ? check_preemption_disabled+0x48/0x280 [ 418.192946] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 418.198502] ? should_fail+0x22d/0xd01 [ 418.202399] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 418.207510] ? zap_class+0x640/0x640 [ 418.211250] ? __lock_is_held+0xb5/0x140 [ 418.215327] ? mark_held_locks+0x130/0x130 [ 418.219567] ? lock_release+0xa00/0xa00 [ 418.223548] ? perf_trace_sched_process_exec+0x860/0x860 [ 418.229002] ? xa_load+0x2ba/0x460 [ 418.232550] ? lock_downgrade+0x900/0x900 [ 418.236734] ? __might_sleep+0x95/0x190 [ 418.240722] __alloc_pages_nodemask+0xad8/0xea0 [ 418.245401] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 418.250424] ? __page_cache_alloc+0x191/0x5c0 [ 418.254934] ? xa_load+0x2e1/0x460 [ 418.258479] ? xa_clear_mark+0x40/0x40 [ 418.262371] ? zap_class+0x640/0x640 [ 418.266093] ? zap_class+0x640/0x640 [ 418.269809] ? zap_class+0x640/0x640 [ 418.273532] ? __do_page_cache_readahead+0x663/0x810 [ 418.278649] ? find_held_lock+0x36/0x1c0 [ 418.282723] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 418.288272] alloc_pages_current+0x173/0x350 [ 418.292690] __page_cache_alloc+0x38c/0x5c0 [ 418.297013] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 418.301963] ? kasan_check_read+0x11/0x20 [ 418.306123] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 418.311417] ? generic_perform_write+0x6a0/0x6a0 [ 418.316186] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 418.321729] ? check_preemption_disabled+0x48/0x280 [ 418.326757] filemap_fault+0x1595/0x25f0 [ 418.330836] ? __lock_page_or_retry+0xa00/0xa00 [ 418.335512] ? mark_held_locks+0x130/0x130 [ 418.339762] ? filemap_map_pages+0xd6b/0x1a20 [ 418.344264] ? lock_downgrade+0x900/0x900 [ 418.348428] ? check_preemption_disabled+0x48/0x280 [ 418.353459] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 418.358405] ? kasan_check_read+0x11/0x20 [ 418.362561] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 418.367841] ? rcu_softirq_qs+0x20/0x20 [ 418.371839] ? filemap_map_pages+0xd92/0x1a20 [ 418.376349] ? find_get_entries_tag+0x1400/0x1400 [ 418.381212] ? debug_object_destroy+0x2b0/0x2b0 [ 418.385887] ? lock_pi_update_atomic+0x150/0x150 [ 418.390653] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 418.396209] ? lock_acquire+0x1ed/0x520 [ 418.400200] ? ext4_filemap_fault+0x7a/0xad [ 418.404531] ? lock_release+0xa00/0xa00 [ 418.408512] ? perf_trace_sched_process_exec+0x860/0x860 [ 418.413967] ? print_usage_bug+0xc0/0xc0 [ 418.418058] ? print_usage_bug+0xc0/0xc0 [ 418.422155] ? down_read+0x8d/0x120 [ 418.425800] ? ext4_filemap_fault+0x7a/0xad [ 418.430130] ? __down_interruptible+0x700/0x700 [ 418.434822] ext4_filemap_fault+0x82/0xad [ 418.438978] __do_fault+0x100/0x6b0 [ 418.442608] ? find_held_lock+0x36/0x1c0 [ 418.446679] ? pmd_devmap_trans_unstable+0x220/0x220 [ 418.451815] ? mark_held_locks+0x130/0x130 [ 418.456066] ? mark_held_locks+0x130/0x130 [ 418.460313] ? kasan_check_read+0x11/0x20 [ 418.464469] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 418.470019] __handle_mm_fault+0x3ea0/0x5be0 [ 418.474439] ? perf_trace_lock+0x7a0/0x7a0 [ 418.478688] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 418.483541] ? __switch_to_asm+0x34/0x70 [ 418.487605] ? __switch_to_asm+0x34/0x70 [ 418.491683] ? zap_class+0x640/0x640 [ 418.495395] ? zap_class+0x640/0x640 [ 418.499109] ? __x64_sys_futex+0x53e/0x6a0 [ 418.503362] ? find_held_lock+0x36/0x1c0 [ 418.507434] ? handle_mm_fault+0x42a/0xc70 [ 418.511678] ? lock_downgrade+0x900/0x900 [ 418.515833] ? check_preemption_disabled+0x48/0x280 [ 418.520875] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 418.525819] ? kasan_check_read+0x11/0x20 [ 418.529970] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 418.535254] ? rcu_softirq_qs+0x20/0x20 [ 418.539239] ? trace_hardirqs_off_caller+0x310/0x310 [ 418.544360] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 418.549909] ? sync_mm_rss+0x9a/0x1c0 [ 418.553730] handle_mm_fault+0x54f/0xc70 [ 418.557800] ? __handle_mm_fault+0x5be0/0x5be0 [ 418.562387] ? find_vma+0x34/0x190 [ 418.565942] __do_page_fault+0x5e8/0xe60 [ 418.570011] ? trace_hardirqs_off+0xb8/0x310 [ 418.574433] do_page_fault+0xf2/0x7e0 [ 418.578254] ? vmalloc_sync_all+0x30/0x30 [ 418.582408] ? error_entry+0x70/0xd0 [ 418.586130] ? trace_hardirqs_off_caller+0xbb/0x310 [ 418.591165] ? trace_hardirqs_on_caller+0xc0/0x310 [ 418.596098] ? syscall_return_slowpath+0x5e0/0x5e0 [ 418.601033] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 418.605897] ? trace_hardirqs_on_caller+0x310/0x310 [ 418.610937] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 418.616407] ? prepare_exit_to_usermode+0x291/0x3b0 [ 418.621429] ? page_fault+0x8/0x30 [ 418.624979] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 418.629845] ? page_fault+0x8/0x30 [ 418.633390] page_fault+0x1e/0x30 [ 418.636846] RIP: 0033:0x45ddf3 [ 418.640052] Code: Bad RIP value. [ 418.643413] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 418.648790] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 418.656061] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 418.663332] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 418.670611] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 418.677920] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 418.685226] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 418.685232] warn_alloc_show_mem: 1 callbacks suppressed [ 418.685239] Mem-Info: [ 418.692531] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 418.697902] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 418.697902] active_file:17 inactive_file:17 isolated_file:0 [ 418.697902] unevictable:0 dirty:4 writeback:0 unstable:0 [ 418.697902] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 418.697902] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 418.697902] free:13550 free_pcp:124 free_cma:0 [ 418.700287] Call Trace: [ 418.709689] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 418.742727] [ 418.745302] 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 [ 418.773080] dump_stack+0x244/0x39d [ 418.775207] lowmem_reserve[]: 0 2818 6321 6321 [ 418.801353] ? dump_stack_print_info.cold.1+0x20/0x20 [ 418.804953] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 418.809544] warn_alloc.cold.116+0xb7/0x1bd [ 418.814697] lowmem_reserve[]: 0 0 3503 3503 [ 418.842063] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 418.846360] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 418.850687] ? lock_downgrade+0x900/0x900 [ 418.855499] lowmem_reserve[]: 0 0 0 0 [ 418.884410] ? trace_hardirqs_off+0xb8/0x310 [ 418.888535] 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 [ 418.892338] ? trace_hardirqs_off+0xb8/0x310 [ 418.896712] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 418.910269] __alloc_pages_slowpath+0x2651/0x2de0 [ 418.914649] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 418.929430] ? warn_alloc+0x120/0x120 [ 418.934225] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 418.949199] ? print_usage_bug+0xc0/0xc0 [ 418.952999] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 418.961831] ? warn_alloc+0x120/0x120 [ 418.965865] 1360 total pagecache pages [ 418.974447] ? warn_alloc+0x120/0x120 [ 418.978225] 0 pages in swap cache [ 418.982101] ? print_usage_bug+0xc0/0xc0 [ 418.985875] Swap cache stats: add 0, delete 0, find 0/0 [ 418.989326] ? kvm_clock_read+0x18/0x30 [ 418.993357] Free swap = 0kB [ 418.998723] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 419.002665] Total swap = 0kB [ 419.005679] ? print_usage_bug+0xc0/0xc0 [ 419.010670] 1965979 pages RAM [ 419.013687] ? __lock_acquire+0x62f/0x4c20 [ 419.017715] 0 pages HighMem/MovableOnly [ 419.017724] 342854 pages reserved [ 419.020829] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 419.025032] 0 pages cma reserved [ 419.029007] ? should_fail+0x22d/0xd01 [ 419.032510] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 419.037959] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 419.037982] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 419.041427] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 419.045208] ? __lock_acquire+0x62f/0x4c20 [ 419.051680] syz-fuzzer cpuset=/ mems_allowed=0 [ 419.056977] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 419.086313] ? __lock_acquire+0x62f/0x4c20 [ 419.090558] ? should_fail+0x22d/0xd01 [ 419.094450] ? rcu_irq_exit+0x1a2/0x390 [ 419.098446] ? mark_held_locks+0x130/0x130 [ 419.102694] ? mark_held_locks+0x130/0x130 [ 419.106942] ? mark_held_locks+0xc7/0x130 [ 419.111097] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 419.116132] ? zap_class+0x640/0x640 [ 419.119856] ? print_usage_bug+0xc0/0xc0 [ 419.123927] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 419.129486] ? check_preemption_disabled+0x48/0x280 [ 419.134527] ? __lock_is_held+0xb5/0x140 [ 419.138614] __alloc_pages_nodemask+0xad8/0xea0 [ 419.143297] ? zap_class+0x640/0x640 [ 419.147022] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 419.152058] ? find_held_lock+0x36/0x1c0 [ 419.156132] ? ____cache_alloc_node+0x1c7/0x1e0 [ 419.160812] ? lock_downgrade+0x900/0x900 [ 419.164973] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 419.170522] cache_grow_begin+0xa5/0x8c0 [ 419.174587] ? do_raw_spin_unlock+0xa7/0x330 [ 419.179006] fallback_alloc+0x204/0x2e0 [ 419.182987] ____cache_alloc_node+0x1c7/0x1e0 [ 419.187504] kmem_cache_alloc_node+0xe3/0x730 [ 419.192004] ? ipv6_get_ifaddr+0x42e/0x620 [ 419.196251] __alloc_skb+0x119/0x770 [ 419.199979] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 419.205261] ? netdev_alloc_frag+0x1f0/0x1f0 [ 419.209675] ? lock_downgrade+0x900/0x900 [ 419.213833] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 419.219373] ? refcount_sub_and_test_checked+0x203/0x310 [ 419.224842] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 419.230337] ? addrconf_rs_timer+0x690/0x690 [ 419.234759] ndisc_alloc_skb+0x144/0x340 [ 419.238832] ndisc_send_rs+0x331/0x6e0 [ 419.242741] addrconf_rs_timer+0x314/0x690 [ 419.246984] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 419.251231] call_timer_fn+0x272/0x920 [ 419.255133] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 419.259383] ? process_timeout+0x40/0x40 [ 419.263502] ? __run_timers+0x7da/0xc70 [ 419.267490] ? _raw_spin_unlock_irq+0x27/0x80 [ 419.271982] ? _raw_spin_unlock_irq+0x27/0x80 [ 419.276479] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 419.280717] ? lockdep_hardirqs_on+0x296/0x5b0 [ 419.285303] ? trace_hardirqs_on+0xbd/0x310 [ 419.289627] ? kasan_check_read+0x11/0x20 [ 419.293775] ? __run_timers+0x7da/0xc70 [ 419.297752] ? trace_hardirqs_off_caller+0x310/0x310 [ 419.302865] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 419.307120] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 419.311363] __run_timers+0x7e5/0xc70 [ 419.315193] ? timer_fixup_init+0x70/0x70 [ 419.319345] ? kasan_check_read+0x11/0x20 [ 419.323507] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 419.328781] ? rcu_softirq_qs+0x20/0x20 [ 419.332760] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 419.338305] ? check_preemption_disabled+0x48/0x280 [ 419.343330] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 419.348114] ? retint_kernel+0x2d/0x2d [ 419.352018] ? trace_hardirqs_on_caller+0xc0/0x310 [ 419.356956] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 419.361720] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 419.367187] ? zap_class+0x640/0x640 [ 419.370908] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 419.376460] ? check_preemption_disabled+0x48/0x280 [ 419.381492] ? __lock_is_held+0xb5/0x140 [ 419.385565] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 419.391106] ? check_preemption_disabled+0x48/0x280 [ 419.396129] run_timer_softirq+0x52/0xb0 [ 419.400234] ? rcu_read_lock_sched_held+0x14f/0x180 [ 419.405289] __do_softirq+0x308/0xb7e [ 419.409096] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 419.413596] ? lock_downgrade+0x900/0x900 [ 419.417766] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 419.422882] ? pvclock_read_flags+0x160/0x160 [ 419.427385] ? lapic_next_event+0x5a/0x90 [ 419.431543] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 419.437091] ? kvm_clock_read+0x18/0x30 [ 419.441093] ? kvm_sched_clock_read+0x9/0x20 [ 419.445507] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 419.451051] ? check_preemption_disabled+0x48/0x280 [ 419.456084] irq_exit+0x17f/0x1c0 [ 419.459548] smp_apic_timer_interrupt+0x1cb/0x760 [ 419.464393] ? smp_reschedule_interrupt+0x109/0x650 [ 419.469427] ? smp_call_function_single_interrupt+0x650/0x650 [ 419.475316] ? interrupt_entry+0xb5/0xc0 [ 419.479381] ? trace_hardirqs_off_caller+0xbb/0x310 [ 419.484407] ? trace_hardirqs_off_caller+0xbb/0x310 [ 419.489449] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 419.494302] ? trace_hardirqs_on_caller+0x310/0x310 [ 419.499318] ? trace_hardirqs_on_caller+0x310/0x310 [ 419.504335] ? task_prio+0x50/0x50 [ 419.507878] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 419.513425] ? check_preemption_disabled+0x48/0x280 [ 419.518466] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 419.523325] apic_timer_interrupt+0xf/0x20 [ 419.527562] [ 419.529802] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 419.534752] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 419.553686] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 419.561407] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 419.568693] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 419.575966] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 419.583238] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 419.590512] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 419.597834] skb_clone+0x1bb/0x500 [ 419.601380] ? skb_split+0x11e0/0x11e0 [ 419.605283] ? preempt_notifier_register+0x200/0x200 [ 419.610385] ? __switch_to_asm+0x34/0x70 [ 419.614470] ? __switch_to_asm+0x34/0x70 [ 419.618528] ? __switch_to_asm+0x40/0x70 [ 419.622589] ? __switch_to_asm+0x34/0x70 [ 419.626649] ? __switch_to_asm+0x40/0x70 [ 419.630710] ? __switch_to_asm+0x40/0x70 [ 419.634769] ? __switch_to_asm+0x34/0x70 [ 419.638833] ? __switch_to_asm+0x34/0x70 [ 419.642891] ? __switch_to_asm+0x40/0x70 [ 419.646951] ? __switch_to_asm+0x34/0x70 [ 419.651020] bpf_clone_redirect+0xb9/0x490 [ 419.655267] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 419.660297] ? __sched_text_start+0x8/0x8 [ 419.664455] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 419.669245] ? find_held_lock+0x36/0x1c0 [ 419.673337] ? lock_acquire+0x1ed/0x520 [ 419.677336] ? bpf_test_run+0x3ee/0x7a0 [ 419.681340] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 419.686890] ? check_preemption_disabled+0x48/0x280 [ 419.691931] ? kasan_check_read+0x11/0x20 [ 419.696084] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 419.701360] ? rcu_softirq_qs+0x20/0x20 [ 419.705355] ? preempt_schedule+0x4d/0x60 [ 419.709510] ? ___preempt_schedule+0x16/0x18 [ 419.713931] ? bpf_test_run+0x271/0x7a0 [ 419.717922] ? netlink_diag_dump+0x2a0/0x2a0 [ 419.722339] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 419.727877] ? bpf_test_init.isra.10+0x70/0x100 [ 419.732554] ? bpf_prog_test_run_skb+0x762/0xd60 [ 419.737320] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 419.742183] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 419.747725] ? fput+0x130/0x1a0 [ 419.751015] ? __bpf_prog_get+0x9b/0x290 [ 419.755083] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 419.759933] ? bpf_prog_test_run+0x130/0x1a0 [ 419.764350] ? __x64_sys_bpf+0x3d8/0x520 [ 419.768437] ? bpf_prog_get+0x20/0x20 [ 419.772262] ? do_syscall_64+0x1b9/0x820 [ 419.776349] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 419.781715] ? syscall_return_slowpath+0x5e0/0x5e0 [ 419.786647] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 419.791500] ? trace_hardirqs_on_caller+0x310/0x310 [ 419.796537] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 419.801560] ? prepare_exit_to_usermode+0x291/0x3b0 [ 419.806597] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 419.811475] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 419.816861] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 419.816948] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 419.823799] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 419.823804] Call Trace: [ 419.823811] [ 419.823830] dump_stack+0x244/0x39d [ 419.823863] ? dump_stack_print_info.cold.1+0x20/0x20 [ 419.823888] warn_alloc.cold.116+0xb7/0x1bd [ 419.830463] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 419.839738] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 419.842300] syz-executor4 cpuset=syz4 mems_allowed=0 [ 419.844489] ? lock_downgrade+0x900/0x900 [ 419.882134] ? trace_hardirqs_off+0xb8/0x310 [ 419.886567] ? trace_hardirqs_off+0xb8/0x310 [ 419.890989] __alloc_pages_slowpath+0x2651/0x2de0 [ 419.895867] ? warn_alloc+0x120/0x120 [ 419.899676] ? print_usage_bug+0xc0/0xc0 [ 419.903743] ? warn_alloc+0x120/0x120 [ 419.907567] ? warn_alloc+0x120/0x120 [ 419.911374] ? print_usage_bug+0xc0/0xc0 [ 419.915457] ? kvm_clock_read+0x18/0x30 [ 419.919442] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 419.924469] ? print_usage_bug+0xc0/0xc0 [ 419.928536] ? __lock_acquire+0x62f/0x4c20 [ 419.932779] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 419.938321] ? should_fail+0x22d/0xd01 [ 419.942208] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 419.947495] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 419.952612] ? __lock_acquire+0x62f/0x4c20 [ 419.956855] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 419.961965] ? __lock_acquire+0x62f/0x4c20 [ 419.966217] ? should_fail+0x22d/0xd01 [ 419.970104] ? rcu_irq_exit+0x1a2/0x390 [ 419.974092] ? mark_held_locks+0x130/0x130 [ 419.978338] ? mark_held_locks+0x130/0x130 [ 419.982580] ? mark_held_locks+0xc7/0x130 [ 419.986733] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 419.991752] ? zap_class+0x640/0x640 [ 419.995483] ? print_usage_bug+0xc0/0xc0 [ 419.999550] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 420.005110] ? check_preemption_disabled+0x48/0x280 [ 420.010181] ? __lock_is_held+0xb5/0x140 [ 420.014259] __alloc_pages_nodemask+0xad8/0xea0 [ 420.018936] ? zap_class+0x640/0x640 [ 420.022657] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 420.027687] ? find_held_lock+0x36/0x1c0 [ 420.031762] ? ____cache_alloc_node+0x1c7/0x1e0 [ 420.036440] ? lock_downgrade+0x900/0x900 [ 420.040599] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 420.046153] cache_grow_begin+0xa5/0x8c0 [ 420.050219] ? do_raw_spin_unlock+0xa7/0x330 [ 420.054643] fallback_alloc+0x204/0x2e0 [ 420.058630] ____cache_alloc_node+0x1c7/0x1e0 [ 420.063135] kmem_cache_alloc_node+0xe3/0x730 [ 420.067643] ? ipv6_get_ifaddr+0x42e/0x620 [ 420.071899] __alloc_skb+0x119/0x770 [ 420.075622] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 420.080905] ? netdev_alloc_frag+0x1f0/0x1f0 [ 420.085326] ? lock_downgrade+0x900/0x900 [ 420.089496] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 420.095042] ? refcount_sub_and_test_checked+0x203/0x310 [ 420.100504] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 420.105958] ? addrconf_rs_timer+0x690/0x690 [ 420.110381] ndisc_alloc_skb+0x144/0x340 [ 420.114451] ndisc_send_rs+0x331/0x6e0 [ 420.118349] addrconf_rs_timer+0x314/0x690 [ 420.122592] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 420.126861] call_timer_fn+0x272/0x920 [ 420.130752] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 420.134993] ? process_timeout+0x40/0x40 [ 420.139068] ? mark_held_locks+0xc7/0x130 [ 420.143250] ? _raw_spin_unlock_irq+0x27/0x80 [ 420.147743] ? _raw_spin_unlock_irq+0x27/0x80 [ 420.152239] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 420.156479] ? lockdep_hardirqs_on+0x296/0x5b0 [ 420.161094] ? trace_hardirqs_on+0xbd/0x310 [ 420.165416] ? kasan_check_read+0x11/0x20 [ 420.169566] ? __run_timers+0x7da/0xc70 [ 420.173546] ? trace_hardirqs_off_caller+0x310/0x310 [ 420.178690] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 420.182954] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 420.187191] __run_timers+0x7e5/0xc70 [ 420.191018] ? timer_fixup_init+0x70/0x70 [ 420.195179] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 420.200201] ? zap_class+0x640/0x640 [ 420.203929] ? print_usage_bug+0xc0/0xc0 [ 420.207995] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 420.213199] ? find_held_lock+0x36/0x1c0 [ 420.217266] ? zap_class+0x640/0x640 [ 420.220988] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 420.226537] ? check_preemption_disabled+0x48/0x280 [ 420.231583] ? __lock_is_held+0xb5/0x140 [ 420.235649] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 420.241207] ? check_preemption_disabled+0x48/0x280 [ 420.246236] run_timer_softirq+0x52/0xb0 [ 420.250302] ? rcu_read_lock_sched_held+0x14f/0x180 [ 420.255324] __do_softirq+0x308/0xb7e [ 420.259133] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 420.263644] ? lock_downgrade+0x900/0x900 [ 420.267799] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 420.272950] ? pvclock_read_flags+0x160/0x160 [ 420.277450] ? lapic_next_event+0x5a/0x90 [ 420.281604] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 420.287172] ? kvm_clock_read+0x18/0x30 [ 420.291170] ? kvm_sched_clock_read+0x9/0x20 [ 420.295584] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 420.301126] ? check_preemption_disabled+0x48/0x280 [ 420.306185] irq_exit+0x17f/0x1c0 [ 420.309661] smp_apic_timer_interrupt+0x1cb/0x760 [ 420.314506] ? smp_reschedule_interrupt+0x109/0x650 [ 420.319538] ? smp_call_function_single_interrupt+0x650/0x650 [ 420.325426] ? interrupt_entry+0xb5/0xc0 [ 420.329500] ? trace_hardirqs_off_caller+0xbb/0x310 [ 420.334520] ? trace_hardirqs_off_caller+0xbb/0x310 [ 420.339554] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 420.344401] ? trace_hardirqs_on_caller+0x310/0x310 [ 420.349480] ? trace_hardirqs_on_caller+0x310/0x310 [ 420.354501] ? task_prio+0x50/0x50 [ 420.358049] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 420.363591] ? check_preemption_disabled+0x48/0x280 [ 420.368629] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 420.373484] apic_timer_interrupt+0xf/0x20 [ 420.377717] [ 420.379960] RIP: 0010:lock_acquire+0x268/0x520 [ 420.384548] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 420.403458] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 420.411180] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 420.418453] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 420.425722] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 420.432995] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 420.440267] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 420.447579] ? lruvec_lru_size+0x450/0x450 [ 420.451819] ? kasan_check_read+0x11/0x20 [ 420.455980] ? lock_release+0xa00/0xa00 [ 420.459980] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 420.464940] down_read_trylock+0xda/0x140 [ 420.469090] ? shrink_slab+0x207/0x8c0 [ 420.472986] ? downgrade_write+0x270/0x270 [ 420.477265] shrink_slab+0x207/0x8c0 [ 420.481089] ? shrink_active_list+0x1f00/0x1f00 [ 420.485784] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 420.491415] ? __lock_acquire+0x62f/0x4c20 [ 420.495657] ? percpu_ref_get_many+0x240/0x240 [ 420.500277] ? print_usage_bug+0xc0/0xc0 [ 420.504349] shrink_node+0x431/0x16b0 [ 420.508169] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 420.513516] ? shrink_node_memcg+0x18f0/0x18f0 [ 420.518156] ? kvm_clock_read+0x18/0x30 [ 420.522162] ? ktime_get+0x2c1/0x400 [ 420.525886] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 420.530418] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 420.535957] ? __cpuset_node_allowed+0x19b/0x660 [ 420.540717] ? mark_held_locks+0x130/0x130 [ 420.544970] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 420.550685] ? zap_class+0x640/0x640 [ 420.554425] do_try_to_free_pages+0x3e7/0x1290 [ 420.559020] ? zap_class+0x640/0x640 [ 420.562783] ? shrink_node+0x16b0/0x16b0 [ 420.566909] ? __lock_is_held+0xb5/0x140 [ 420.570991] try_to_free_pages+0x4d0/0xb90 [ 420.575234] ? do_try_to_free_pages+0x1290/0x1290 [ 420.580095] ? lock_acquire+0x1ed/0x520 [ 420.584071] ? set_page_refcounted+0x280/0x280 [ 420.588661] ? lock_release+0xa00/0xa00 [ 420.592644] ? _raw_spin_unlock_irq+0x60/0x80 [ 420.597156] ? psi_memstall_enter+0x240/0x2b0 [ 420.601659] ? psi_memstall_tick+0x230/0x230 [ 420.606085] __alloc_pages_slowpath+0xa48/0x2de0 [ 420.610876] ? warn_alloc+0x120/0x120 [ 420.614690] ? mark_held_locks+0x130/0x130 [ 420.618944] ? find_get_entry+0xaae/0x1120 [ 420.623193] ? filemap_map_pages+0x1a20/0x1a20 [ 420.627784] ? zap_class+0x640/0x640 [ 420.631515] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 420.637061] ? check_preemption_disabled+0x48/0x280 [ 420.642081] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 420.647625] ? should_fail+0x22d/0xd01 [ 420.651525] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 420.656635] ? zap_class+0x640/0x640 [ 420.660378] ? __lock_is_held+0xb5/0x140 [ 420.664452] ? mark_held_locks+0x130/0x130 [ 420.668694] ? lock_release+0xa00/0xa00 [ 420.672674] ? perf_trace_sched_process_exec+0x860/0x860 [ 420.678127] ? xa_load+0x2ba/0x460 [ 420.681679] ? lock_downgrade+0x900/0x900 [ 420.685835] ? __might_sleep+0x95/0x190 [ 420.689818] __alloc_pages_nodemask+0xad8/0xea0 [ 420.694500] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 420.699524] ? __page_cache_alloc+0x191/0x5c0 [ 420.704020] ? xa_load+0x2e1/0x460 [ 420.707561] ? xa_clear_mark+0x40/0x40 [ 420.711471] ? zap_class+0x640/0x640 [ 420.715198] ? zap_class+0x640/0x640 [ 420.718920] ? zap_class+0x640/0x640 [ 420.722639] ? __do_page_cache_readahead+0x663/0x810 [ 420.727748] ? find_held_lock+0x36/0x1c0 [ 420.731841] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 420.737392] alloc_pages_current+0x173/0x350 [ 420.741815] __page_cache_alloc+0x38c/0x5c0 [ 420.746137] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 420.751082] ? kasan_check_read+0x11/0x20 [ 420.755236] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 420.760533] ? generic_perform_write+0x6a0/0x6a0 [ 420.765293] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 420.770835] ? check_preemption_disabled+0x48/0x280 [ 420.775867] filemap_fault+0x1595/0x25f0 [ 420.779956] ? __lock_page_or_retry+0xa00/0xa00 [ 420.784636] ? mark_held_locks+0x130/0x130 [ 420.788885] ? filemap_map_pages+0xd6b/0x1a20 [ 420.793389] ? lock_downgrade+0x900/0x900 [ 420.797540] ? check_preemption_disabled+0x48/0x280 [ 420.802574] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 420.807508] ? kasan_check_read+0x11/0x20 [ 420.811658] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 420.816943] ? rcu_softirq_qs+0x20/0x20 [ 420.820942] ? filemap_map_pages+0xd92/0x1a20 [ 420.825455] ? find_get_entries_tag+0x1400/0x1400 [ 420.830307] ? debug_object_destroy+0x2b0/0x2b0 [ 420.834982] ? lock_pi_update_atomic+0x150/0x150 [ 420.839741] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 420.845295] ? lock_acquire+0x1ed/0x520 [ 420.849296] ? ext4_filemap_fault+0x7a/0xad [ 420.853629] ? lock_release+0xa00/0xa00 [ 420.857609] ? perf_trace_sched_process_exec+0x860/0x860 [ 420.863067] ? print_usage_bug+0xc0/0xc0 [ 420.867134] ? print_usage_bug+0xc0/0xc0 [ 420.871223] ? down_read+0x8d/0x120 [ 420.874847] ? ext4_filemap_fault+0x7a/0xad [ 420.879183] ? __down_interruptible+0x700/0x700 [ 420.883868] ext4_filemap_fault+0x82/0xad [ 420.888035] __do_fault+0x100/0x6b0 [ 420.891670] ? find_held_lock+0x36/0x1c0 [ 420.895738] ? pmd_devmap_trans_unstable+0x220/0x220 [ 420.900857] ? mark_held_locks+0x130/0x130 [ 420.905095] ? mark_held_locks+0x130/0x130 [ 420.909340] ? kasan_check_read+0x11/0x20 [ 420.913492] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 420.919051] __handle_mm_fault+0x3ea0/0x5be0 [ 420.923464] ? perf_trace_lock+0x7a0/0x7a0 [ 420.927715] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 420.932566] ? __switch_to_asm+0x34/0x70 [ 420.936640] ? __switch_to_asm+0x34/0x70 [ 420.940717] ? zap_class+0x640/0x640 [ 420.944445] ? zap_class+0x640/0x640 [ 420.948389] ? __x64_sys_futex+0x53e/0x6a0 [ 420.952632] ? find_held_lock+0x36/0x1c0 [ 420.956706] ? handle_mm_fault+0x42a/0xc70 [ 420.960950] ? lock_downgrade+0x900/0x900 [ 420.965113] ? check_preemption_disabled+0x48/0x280 [ 420.970153] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 420.975087] ? kasan_check_read+0x11/0x20 [ 420.979239] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 420.984518] ? rcu_softirq_qs+0x20/0x20 [ 420.988497] ? trace_hardirqs_off_caller+0x310/0x310 [ 420.993608] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 420.999158] ? sync_mm_rss+0x9a/0x1c0 [ 421.002965] handle_mm_fault+0x54f/0xc70 [ 421.007033] ? __handle_mm_fault+0x5be0/0x5be0 [ 421.011640] ? find_vma+0x34/0x190 [ 421.015219] __do_page_fault+0x5e8/0xe60 [ 421.019288] ? trace_hardirqs_off+0xb8/0x310 [ 421.023713] do_page_fault+0xf2/0x7e0 [ 421.027551] ? vmalloc_sync_all+0x30/0x30 [ 421.031704] ? error_entry+0x70/0xd0 [ 421.035424] ? trace_hardirqs_off_caller+0xbb/0x310 [ 421.040449] ? trace_hardirqs_on_caller+0xc0/0x310 [ 421.045411] ? syscall_return_slowpath+0x5e0/0x5e0 [ 421.050345] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 421.055197] ? trace_hardirqs_on_caller+0x310/0x310 [ 421.060217] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 421.065678] ? prepare_exit_to_usermode+0x291/0x3b0 [ 421.070699] ? page_fault+0x8/0x30 [ 421.074246] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 421.079117] ? page_fault+0x8/0x30 [ 421.083212] page_fault+0x1e/0x30 [ 421.086676] RIP: 0033:0x45ddf3 [ 421.089902] Code: Bad RIP value. [ 421.093270] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 421.098646] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 421.105929] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 421.113206] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 421.120473] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 421.127738] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 421.135034] warn_alloc_show_mem: 1 callbacks suppressed [ 421.135046] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 421.135048] Mem-Info: [ 421.135078] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 421.135078] active_file:17 inactive_file:17 isolated_file:0 [ 421.135078] unevictable:0 dirty:4 writeback:0 unstable:0 [ 421.135078] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 421.135078] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 421.135078] free:13550 free_pcp:124 free_cma:0 [ 421.140426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 421.147708] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 421.150106] Call Trace: [ 421.183187] 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 [ 421.192536] [ 421.220335] lowmem_reserve[]: 0 2818 6321 6321 [ 421.222950] dump_stack+0x244/0x39d [ 421.249054] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 421.251224] ? dump_stack_print_info.cold.1+0x20/0x20 [ 421.255788] lowmem_reserve[]: 0 0 3503 3503 [ 421.259434] warn_alloc.cold.116+0xb7/0x1bd [ 421.286748] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 421.291960] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 421.296253] lowmem_reserve[]: 0 0 0 0 [ 421.300577] ? lock_downgrade+0x900/0x900 [ 421.329471] 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 [ 421.334356] ? trace_hardirqs_off+0xb8/0x310 [ 421.338114] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 421.342258] ? trace_hardirqs_off+0xb8/0x310 [ 421.355766] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 421.360203] __alloc_pages_slowpath+0x2651/0x2de0 [ 421.374928] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 421.379355] ? warn_alloc+0x120/0x120 [ 421.394055] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 421.398900] ? print_usage_bug+0xc0/0xc0 [ 421.407704] 1360 total pagecache pages [ 421.411504] ? warn_alloc+0x120/0x120 [ 421.420060] 0 pages in swap cache [ 421.424110] ? warn_alloc+0x120/0x120 [ 421.427972] Swap cache stats: add 0, delete 0, find 0/0 [ 421.431770] ? print_usage_bug+0xc0/0xc0 [ 421.435195] Free swap = 0kB [ 421.438998] ? print_usage_bug+0xc0/0xc0 [ 421.444336] Total swap = 0kB [ 421.448395] ? __lock_acquire+0x62f/0x4c20 [ 421.451387] 1965979 pages RAM [ 421.455445] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 421.458436] 0 pages HighMem/MovableOnly [ 421.462666] ? should_fail+0x22d/0xd01 [ 421.465743] 342854 pages reserved [ 421.471277] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 421.475223] 0 pages cma reserved [ 421.479112] ? __lock_acquire+0x62f/0x4c20 [ 421.482654] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 421.487668] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 421.491109] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 421.495256] ? __lock_acquire+0x62f/0x4c20 [ 421.501720] syz-fuzzer cpuset=/ mems_allowed=0 [ 421.506820] ? should_fail+0x22d/0xd01 [ 421.529709] ? find_held_lock+0x36/0x1c0 [ 421.533781] ? mark_held_locks+0x130/0x130 [ 421.538025] ? mark_held_locks+0x130/0x130 [ 421.542276] ? zap_class+0x640/0x640 [ 421.545992] ? zap_class+0x640/0x640 [ 421.549709] ? print_usage_bug+0xc0/0xc0 [ 421.553783] ? do_raw_spin_unlock+0xa7/0x330 [ 421.558207] ? zap_class+0x640/0x640 [ 421.561928] ? print_usage_bug+0xc0/0xc0 [ 421.565990] ? wq_watchdog_touch+0x9c/0xfe [ 421.570234] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 421.575776] ? check_preemption_disabled+0x48/0x280 [ 421.580806] ? __lock_is_held+0xb5/0x140 [ 421.584877] __alloc_pages_nodemask+0xad8/0xea0 [ 421.589549] ? zap_class+0x640/0x640 [ 421.593268] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 421.598296] ? find_held_lock+0x36/0x1c0 [ 421.602371] ? ____cache_alloc_node+0x1c7/0x1e0 [ 421.607047] ? lock_downgrade+0x900/0x900 [ 421.611203] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 421.616764] cache_grow_begin+0xa5/0x8c0 [ 421.620828] ? do_raw_spin_unlock+0xa7/0x330 [ 421.625247] fallback_alloc+0x204/0x2e0 [ 421.629229] ____cache_alloc_node+0x1c7/0x1e0 [ 421.633730] kmem_cache_alloc_node+0xe3/0x730 [ 421.638258] ? ipv6_get_ifaddr+0x42e/0x620 [ 421.642505] __alloc_skb+0x119/0x770 [ 421.646224] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 421.651508] ? netdev_alloc_frag+0x1f0/0x1f0 [ 421.655920] ? lock_downgrade+0x900/0x900 [ 421.660084] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 421.665624] ? refcount_sub_and_test_checked+0x203/0x310 [ 421.671084] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 421.676539] ? addrconf_rs_timer+0x690/0x690 [ 421.680969] ndisc_alloc_skb+0x144/0x340 [ 421.685043] ndisc_send_rs+0x331/0x6e0 [ 421.688946] addrconf_rs_timer+0x314/0x690 [ 421.693194] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 421.697449] call_timer_fn+0x272/0x920 [ 421.701338] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 421.705578] ? process_timeout+0x40/0x40 [ 421.709668] ? __run_timers+0x7da/0xc70 [ 421.713646] ? _raw_spin_unlock_irq+0x27/0x80 [ 421.718138] ? _raw_spin_unlock_irq+0x27/0x80 [ 421.722643] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 421.726886] ? lockdep_hardirqs_on+0x296/0x5b0 [ 421.731472] ? trace_hardirqs_on+0xbd/0x310 [ 421.735811] ? kasan_check_read+0x11/0x20 [ 421.739957] ? __run_timers+0x7da/0xc70 [ 421.743931] ? trace_hardirqs_off_caller+0x310/0x310 [ 421.749047] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 421.753291] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 421.757531] __run_timers+0x7e5/0xc70 [ 421.761343] ? timer_fixup_init+0x70/0x70 [ 421.765494] ? kasan_check_read+0x11/0x20 [ 421.769658] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 421.774934] ? rcu_softirq_qs+0x20/0x20 [ 421.778917] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 421.784460] ? check_preemption_disabled+0x48/0x280 [ 421.789510] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 421.794305] ? retint_kernel+0x2d/0x2d [ 421.798216] ? trace_hardirqs_on_caller+0xc0/0x310 [ 421.803160] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 421.807919] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 421.813378] ? zap_class+0x640/0x640 [ 421.817109] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 421.822671] ? check_preemption_disabled+0x48/0x280 [ 421.827714] ? __lock_is_held+0xb5/0x140 [ 421.831776] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 421.837321] ? check_preemption_disabled+0x48/0x280 [ 421.842346] run_timer_softirq+0x52/0xb0 [ 421.846422] ? rcu_read_lock_sched_held+0x14f/0x180 [ 421.851460] __do_softirq+0x308/0xb7e [ 421.855270] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 421.859771] ? lock_downgrade+0x900/0x900 [ 421.863930] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 421.869044] ? pvclock_read_flags+0x160/0x160 [ 421.873557] ? lapic_next_event+0x5a/0x90 [ 421.877711] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 421.883262] ? kvm_clock_read+0x18/0x30 [ 421.887248] ? kvm_sched_clock_read+0x9/0x20 [ 421.891663] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 421.897208] ? check_preemption_disabled+0x48/0x280 [ 421.902236] irq_exit+0x17f/0x1c0 [ 421.905697] smp_apic_timer_interrupt+0x1cb/0x760 [ 421.910544] ? smp_reschedule_interrupt+0x109/0x650 [ 421.915565] ? smp_call_function_single_interrupt+0x650/0x650 [ 421.921458] ? interrupt_entry+0xb5/0xc0 [ 421.925526] ? trace_hardirqs_off_caller+0xbb/0x310 [ 421.930545] ? trace_hardirqs_off_caller+0xbb/0x310 [ 421.935584] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 421.940449] ? trace_hardirqs_on_caller+0x310/0x310 [ 421.945469] ? trace_hardirqs_on_caller+0x310/0x310 [ 421.950488] ? task_prio+0x50/0x50 [ 421.954034] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 421.959583] ? check_preemption_disabled+0x48/0x280 [ 421.964613] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 421.969471] apic_timer_interrupt+0xf/0x20 [ 421.973734] [ 421.975978] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 421.981014] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 421.999927] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 422.007647] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 422.014920] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 422.022194] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 422.029466] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 422.036737] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 422.044058] skb_clone+0x1bb/0x500 [ 422.047602] ? skb_split+0x11e0/0x11e0 [ 422.051588] ? preempt_notifier_register+0x200/0x200 [ 422.056698] ? __switch_to_asm+0x34/0x70 [ 422.060785] ? __switch_to_asm+0x34/0x70 [ 422.064867] ? __switch_to_asm+0x40/0x70 [ 422.068929] ? __switch_to_asm+0x34/0x70 [ 422.072988] ? __switch_to_asm+0x40/0x70 [ 422.077051] ? __switch_to_asm+0x40/0x70 [ 422.081122] ? __switch_to_asm+0x34/0x70 [ 422.085193] ? __switch_to_asm+0x34/0x70 [ 422.089253] ? __switch_to_asm+0x40/0x70 [ 422.093315] ? __switch_to_asm+0x34/0x70 [ 422.097385] bpf_clone_redirect+0xb9/0x490 [ 422.101640] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 422.106662] ? __sched_text_start+0x8/0x8 [ 422.110812] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 422.115592] ? find_held_lock+0x36/0x1c0 [ 422.119664] ? lock_acquire+0x1ed/0x520 [ 422.123644] ? bpf_test_run+0x3ee/0x7a0 [ 422.127626] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 422.133176] ? check_preemption_disabled+0x48/0x280 [ 422.138208] ? kasan_check_read+0x11/0x20 [ 422.142357] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 422.147638] ? rcu_softirq_qs+0x20/0x20 [ 422.151619] ? preempt_schedule+0x4d/0x60 [ 422.155774] ? ___preempt_schedule+0x16/0x18 [ 422.160234] ? bpf_test_run+0x271/0x7a0 [ 422.164232] ? netlink_diag_dump+0x2a0/0x2a0 [ 422.168654] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 422.174196] ? bpf_test_init.isra.10+0x70/0x100 [ 422.178873] ? bpf_prog_test_run_skb+0x762/0xd60 [ 422.183659] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 422.188513] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 422.194055] ? fput+0x130/0x1a0 [ 422.197341] ? __bpf_prog_get+0x9b/0x290 [ 422.201408] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 422.206259] ? bpf_prog_test_run+0x130/0x1a0 [ 422.210673] ? __x64_sys_bpf+0x3d8/0x520 [ 422.214737] ? bpf_prog_get+0x20/0x20 [ 422.218561] ? do_syscall_64+0x1b9/0x820 [ 422.222624] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 422.227995] ? syscall_return_slowpath+0x5e0/0x5e0 [ 422.232939] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 422.237801] ? trace_hardirqs_on_caller+0x310/0x310 [ 422.242820] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 422.247842] ? prepare_exit_to_usermode+0x291/0x3b0 [ 422.252906] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 422.257763] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 422.263160] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 422.263280] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 422.270128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 422.270137] Call Trace: [ 422.276718] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 422.285982] [ 422.288551] syz-executor4 cpuset=syz4 mems_allowed=0 [ 422.299054] dump_stack+0x244/0x39d [ 422.309906] ? dump_stack_print_info.cold.1+0x20/0x20 [ 422.315118] warn_alloc.cold.116+0xb7/0x1bd [ 422.319463] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 422.324315] ? lock_downgrade+0x900/0x900 [ 422.328485] ? trace_hardirqs_off+0xb8/0x310 [ 422.332933] ? trace_hardirqs_off+0xb8/0x310 [ 422.337353] __alloc_pages_slowpath+0x2651/0x2de0 [ 422.342240] ? warn_alloc+0x120/0x120 [ 422.346046] ? print_usage_bug+0xc0/0xc0 [ 422.350115] ? warn_alloc+0x120/0x120 [ 422.353935] ? warn_alloc+0x120/0x120 [ 422.357752] ? print_usage_bug+0xc0/0xc0 [ 422.361817] ? kvm_clock_read+0x18/0x30 [ 422.365797] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 422.370818] ? print_usage_bug+0xc0/0xc0 [ 422.374886] ? __lock_acquire+0x62f/0x4c20 [ 422.379135] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 422.384698] ? should_fail+0x22d/0xd01 [ 422.388589] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 422.393872] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 422.398979] ? __lock_acquire+0x62f/0x4c20 [ 422.403220] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 422.408341] ? __lock_acquire+0x62f/0x4c20 [ 422.412574] ? should_fail+0x22d/0xd01 [ 422.416460] ? rcu_irq_exit+0x1a2/0x390 [ 422.420446] ? mark_held_locks+0x130/0x130 [ 422.424687] ? mark_held_locks+0x130/0x130 [ 422.428935] ? mark_held_locks+0xc7/0x130 [ 422.433089] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 422.438106] ? zap_class+0x640/0x640 [ 422.441821] ? print_usage_bug+0xc0/0xc0 [ 422.445892] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 422.451445] ? check_preemption_disabled+0x48/0x280 [ 422.456479] ? __lock_is_held+0xb5/0x140 [ 422.460563] __alloc_pages_nodemask+0xad8/0xea0 [ 422.465236] ? zap_class+0x640/0x640 [ 422.468965] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 422.474008] ? find_held_lock+0x36/0x1c0 [ 422.478087] ? ____cache_alloc_node+0x1c7/0x1e0 [ 422.482758] ? lock_downgrade+0x900/0x900 [ 422.486922] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 422.492466] cache_grow_begin+0xa5/0x8c0 [ 422.496530] ? do_raw_spin_unlock+0xa7/0x330 [ 422.500953] fallback_alloc+0x204/0x2e0 [ 422.504942] ____cache_alloc_node+0x1c7/0x1e0 [ 422.509454] kmem_cache_alloc_node+0xe3/0x730 [ 422.513955] ? ipv6_get_ifaddr+0x42e/0x620 [ 422.518208] __alloc_skb+0x119/0x770 [ 422.521930] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 422.527233] ? netdev_alloc_frag+0x1f0/0x1f0 [ 422.531650] ? lock_downgrade+0x900/0x900 [ 422.535809] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 422.541350] ? refcount_sub_and_test_checked+0x203/0x310 [ 422.546822] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 422.552275] ? addrconf_rs_timer+0x690/0x690 [ 422.556698] ndisc_alloc_skb+0x144/0x340 [ 422.560773] ndisc_send_rs+0x331/0x6e0 [ 422.564678] addrconf_rs_timer+0x314/0x690 [ 422.568943] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 422.573195] call_timer_fn+0x272/0x920 [ 422.577183] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 422.581419] ? process_timeout+0x40/0x40 [ 422.585510] ? mark_held_locks+0xc7/0x130 [ 422.589665] ? _raw_spin_unlock_irq+0x27/0x80 [ 422.594180] ? _raw_spin_unlock_irq+0x27/0x80 [ 422.598678] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 422.602921] ? lockdep_hardirqs_on+0x296/0x5b0 [ 422.607508] ? trace_hardirqs_on+0xbd/0x310 [ 422.611836] ? kasan_check_read+0x11/0x20 [ 422.616001] ? __run_timers+0x7da/0xc70 [ 422.619997] ? trace_hardirqs_off_caller+0x310/0x310 [ 422.625112] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 422.629359] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 422.633594] __run_timers+0x7e5/0xc70 [ 422.637406] ? timer_fixup_init+0x70/0x70 [ 422.641564] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 422.646582] ? zap_class+0x640/0x640 [ 422.650303] ? print_usage_bug+0xc0/0xc0 [ 422.654372] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 422.659573] ? find_held_lock+0x36/0x1c0 [ 422.663642] ? zap_class+0x640/0x640 [ 422.667364] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 422.672910] ? check_preemption_disabled+0x48/0x280 [ 422.677965] ? __lock_is_held+0xb5/0x140 [ 422.682028] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 422.687570] ? check_preemption_disabled+0x48/0x280 [ 422.692596] run_timer_softirq+0x52/0xb0 [ 422.696665] ? rcu_read_lock_sched_held+0x14f/0x180 [ 422.701683] __do_softirq+0x308/0xb7e [ 422.705503] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 422.710013] ? lock_downgrade+0x900/0x900 [ 422.714174] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 422.719296] ? pvclock_read_flags+0x160/0x160 [ 422.723800] ? lapic_next_event+0x5a/0x90 [ 422.727969] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 422.733516] ? kvm_clock_read+0x18/0x30 [ 422.737491] ? kvm_sched_clock_read+0x9/0x20 [ 422.741948] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 422.747497] ? check_preemption_disabled+0x48/0x280 [ 422.752531] irq_exit+0x17f/0x1c0 [ 422.756006] smp_apic_timer_interrupt+0x1cb/0x760 [ 422.760855] ? smp_reschedule_interrupt+0x109/0x650 [ 422.765878] ? smp_call_function_single_interrupt+0x650/0x650 [ 422.771764] ? interrupt_entry+0xb5/0xc0 [ 422.775830] ? trace_hardirqs_off_caller+0xbb/0x310 [ 422.780861] ? trace_hardirqs_off_caller+0xbb/0x310 [ 422.785880] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 422.790725] ? trace_hardirqs_on_caller+0x310/0x310 [ 422.795754] ? trace_hardirqs_on_caller+0x310/0x310 [ 422.800775] ? task_prio+0x50/0x50 [ 422.804333] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 422.809879] ? check_preemption_disabled+0x48/0x280 [ 422.814903] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 422.819762] apic_timer_interrupt+0xf/0x20 [ 422.823998] [ 422.826258] RIP: 0010:lock_acquire+0x268/0x520 [ 422.830842] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 422.849751] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 422.857463] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 422.864733] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 422.872006] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 422.879273] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 422.886544] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 422.893855] ? lruvec_lru_size+0x450/0x450 [ 422.898098] ? kasan_check_read+0x11/0x20 [ 422.902254] ? lock_release+0xa00/0xa00 [ 422.906247] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 422.911194] down_read_trylock+0xda/0x140 [ 422.915344] ? shrink_slab+0x207/0x8c0 [ 422.919239] ? downgrade_write+0x270/0x270 [ 422.923502] shrink_slab+0x207/0x8c0 [ 422.927222] ? shrink_active_list+0x1f00/0x1f00 [ 422.931901] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 422.937538] ? __lock_acquire+0x62f/0x4c20 [ 422.941781] ? percpu_ref_get_many+0x240/0x240 [ 422.946385] ? print_usage_bug+0xc0/0xc0 [ 422.950573] shrink_node+0x431/0x16b0 [ 422.954430] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 422.959737] ? shrink_node_memcg+0x18f0/0x18f0 [ 422.964330] ? kvm_clock_read+0x18/0x30 [ 422.968312] ? ktime_get+0x2c1/0x400 [ 422.972032] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 422.976532] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 422.982073] ? __cpuset_node_allowed+0x19b/0x660 [ 422.986831] ? mark_held_locks+0x130/0x130 [ 422.991087] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 422.996802] ? zap_class+0x640/0x640 [ 423.000531] do_try_to_free_pages+0x3e7/0x1290 [ 423.005131] ? zap_class+0x640/0x640 [ 423.008882] ? shrink_node+0x16b0/0x16b0 [ 423.012956] ? __lock_is_held+0xb5/0x140 [ 423.017032] try_to_free_pages+0x4d0/0xb90 [ 423.021278] ? do_try_to_free_pages+0x1290/0x1290 [ 423.026162] ? lock_acquire+0x1ed/0x520 [ 423.030164] ? set_page_refcounted+0x280/0x280 [ 423.034758] ? lock_release+0xa00/0xa00 [ 423.038736] ? _raw_spin_unlock_irq+0x60/0x80 [ 423.043237] ? psi_memstall_enter+0x240/0x2b0 [ 423.047750] ? psi_memstall_tick+0x230/0x230 [ 423.052185] __alloc_pages_slowpath+0xa48/0x2de0 [ 423.056984] ? warn_alloc+0x120/0x120 [ 423.060789] ? mark_held_locks+0x130/0x130 [ 423.065032] ? find_get_entry+0xaae/0x1120 [ 423.069280] ? filemap_map_pages+0x1a20/0x1a20 [ 423.073874] ? zap_class+0x640/0x640 [ 423.077605] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 423.083665] ? check_preemption_disabled+0x48/0x280 [ 423.088684] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 423.094236] ? should_fail+0x22d/0xd01 [ 423.098133] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 423.103252] ? zap_class+0x640/0x640 [ 423.106997] ? __lock_is_held+0xb5/0x140 [ 423.111072] ? mark_held_locks+0x130/0x130 [ 423.115324] ? lock_release+0xa00/0xa00 [ 423.119302] ? perf_trace_sched_process_exec+0x860/0x860 [ 423.124757] ? xa_load+0x2ba/0x460 [ 423.128304] ? lock_downgrade+0x900/0x900 [ 423.132463] ? __might_sleep+0x95/0x190 [ 423.136445] __alloc_pages_nodemask+0xad8/0xea0 [ 423.141125] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 423.146166] ? __page_cache_alloc+0x191/0x5c0 [ 423.150666] ? xa_load+0x2e1/0x460 [ 423.154211] ? xa_clear_mark+0x40/0x40 [ 423.158104] ? zap_class+0x640/0x640 [ 423.161830] ? zap_class+0x640/0x640 [ 423.165547] ? zap_class+0x640/0x640 [ 423.169265] ? __do_page_cache_readahead+0x663/0x810 [ 423.174375] ? find_held_lock+0x36/0x1c0 [ 423.178444] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 423.183998] alloc_pages_current+0x173/0x350 [ 423.188417] __page_cache_alloc+0x38c/0x5c0 [ 423.192743] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 423.197677] ? kasan_check_read+0x11/0x20 [ 423.201828] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 423.207111] ? generic_perform_write+0x6a0/0x6a0 [ 423.211881] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 423.217423] ? check_preemption_disabled+0x48/0x280 [ 423.222469] filemap_fault+0x1595/0x25f0 [ 423.226551] ? __lock_page_or_retry+0xa00/0xa00 [ 423.231231] ? mark_held_locks+0x130/0x130 [ 423.235480] ? filemap_map_pages+0xd6b/0x1a20 [ 423.239981] ? lock_downgrade+0x900/0x900 [ 423.244154] ? check_preemption_disabled+0x48/0x280 [ 423.249187] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 423.254119] ? kasan_check_read+0x11/0x20 [ 423.258278] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 423.263558] ? rcu_softirq_qs+0x20/0x20 [ 423.267552] ? filemap_map_pages+0xd92/0x1a20 [ 423.272094] ? find_get_entries_tag+0x1400/0x1400 [ 423.276945] ? debug_object_destroy+0x2b0/0x2b0 [ 423.281620] ? lock_pi_update_atomic+0x150/0x150 [ 423.286396] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 423.291966] ? lock_acquire+0x1ed/0x520 [ 423.295945] ? ext4_filemap_fault+0x7a/0xad [ 423.300273] ? lock_release+0xa00/0xa00 [ 423.304262] ? perf_trace_sched_process_exec+0x860/0x860 [ 423.309717] ? print_usage_bug+0xc0/0xc0 [ 423.313788] ? print_usage_bug+0xc0/0xc0 [ 423.317863] ? down_read+0x8d/0x120 [ 423.321488] ? ext4_filemap_fault+0x7a/0xad [ 423.325818] ? __down_interruptible+0x700/0x700 [ 423.330520] ext4_filemap_fault+0x82/0xad [ 423.334676] __do_fault+0x100/0x6b0 [ 423.338304] ? find_held_lock+0x36/0x1c0 [ 423.342369] ? pmd_devmap_trans_unstable+0x220/0x220 [ 423.347477] ? mark_held_locks+0x130/0x130 [ 423.351727] ? mark_held_locks+0x130/0x130 [ 423.356014] ? kasan_check_read+0x11/0x20 [ 423.360179] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 423.365728] __handle_mm_fault+0x3ea0/0x5be0 [ 423.370152] ? perf_trace_lock+0x7a0/0x7a0 [ 423.374401] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 423.379269] ? __switch_to_asm+0x34/0x70 [ 423.383327] ? __switch_to_asm+0x34/0x70 [ 423.387403] ? zap_class+0x640/0x640 [ 423.391118] ? zap_class+0x640/0x640 [ 423.394846] ? __x64_sys_futex+0x53e/0x6a0 [ 423.399089] ? find_held_lock+0x36/0x1c0 [ 423.403209] ? handle_mm_fault+0x42a/0xc70 [ 423.407474] ? lock_downgrade+0x900/0x900 [ 423.411621] ? check_preemption_disabled+0x48/0x280 [ 423.416639] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 423.421585] ? kasan_check_read+0x11/0x20 [ 423.425737] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 423.431016] ? rcu_softirq_qs+0x20/0x20 [ 423.434992] ? trace_hardirqs_off_caller+0x310/0x310 [ 423.440098] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 423.445636] ? sync_mm_rss+0x9a/0x1c0 [ 423.449444] handle_mm_fault+0x54f/0xc70 [ 423.453542] ? __handle_mm_fault+0x5be0/0x5be0 [ 423.458169] ? find_vma+0x34/0x190 [ 423.461717] __do_page_fault+0x5e8/0xe60 [ 423.465794] ? trace_hardirqs_off+0xb8/0x310 [ 423.470217] do_page_fault+0xf2/0x7e0 [ 423.474031] ? vmalloc_sync_all+0x30/0x30 [ 423.478202] ? error_entry+0x70/0xd0 [ 423.481937] ? trace_hardirqs_off_caller+0xbb/0x310 [ 423.486954] ? trace_hardirqs_on_caller+0xc0/0x310 [ 423.491899] ? syscall_return_slowpath+0x5e0/0x5e0 [ 423.496842] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 423.501716] ? trace_hardirqs_on_caller+0x310/0x310 [ 423.506732] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 423.512191] ? prepare_exit_to_usermode+0x291/0x3b0 [ 423.517208] ? page_fault+0x8/0x30 [ 423.520754] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 423.525609] ? page_fault+0x8/0x30 [ 423.529159] page_fault+0x1e/0x30 [ 423.532613] RIP: 0033:0x45ddf3 [ 423.535822] Code: Bad RIP value. [ 423.539188] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 423.544551] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 423.551831] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 423.559101] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 423.566365] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 423.573637] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 423.580943] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 423.580949] warn_alloc_show_mem: 1 callbacks suppressed [ 423.580956] Mem-Info: [ 423.588262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 423.593633] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 423.593633] active_file:17 inactive_file:17 isolated_file:0 [ 423.593633] unevictable:0 dirty:4 writeback:0 unstable:0 [ 423.593633] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 423.593633] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 423.593633] free:13550 free_pcp:124 free_cma:0 [ 423.596006] Call Trace: [ 423.605397] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 423.638447] [ 423.641039] 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 [ 423.668832] dump_stack+0x244/0x39d [ 423.670960] lowmem_reserve[]: 0 2818 6321 6321 [ 423.697089] ? dump_stack_print_info.cold.1+0x20/0x20 [ 423.700702] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 423.705287] warn_alloc.cold.116+0xb7/0x1bd [ 423.710440] lowmem_reserve[]: 0 0 3503 3503 [ 423.737812] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 423.742104] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 423.746422] ? lock_downgrade+0x900/0x900 [ 423.751230] lowmem_reserve[]: 0 0 0 0 [ 423.780174] ? trace_hardirqs_off+0xb8/0x310 [ 423.784299] 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 [ 423.788099] ? trace_hardirqs_off+0xb8/0x310 [ 423.792481] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 423.806018] __alloc_pages_slowpath+0x2651/0x2de0 [ 423.810401] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 423.825177] ? warn_alloc+0x120/0x120 [ 423.829978] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 423.844709] ? print_usage_bug+0xc0/0xc0 [ 423.848505] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 423.857333] ? warn_alloc+0x120/0x120 [ 423.861372] 1360 total pagecache pages [ 423.869940] ? warn_alloc+0x120/0x120 [ 423.873739] 0 pages in swap cache [ 423.877615] ? print_usage_bug+0xc0/0xc0 [ 423.881394] Swap cache stats: add 0, delete 0, find 0/0 [ 423.884840] ? kvm_clock_read+0x18/0x30 [ 423.888877] Free swap = 0kB [ 423.894240] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 423.898186] Total swap = 0kB [ 423.901210] ? print_usage_bug+0xc0/0xc0 [ 423.906220] 1965979 pages RAM [ 423.909233] ? __lock_acquire+0x62f/0x4c20 [ 423.913296] 0 pages HighMem/MovableOnly [ 423.916404] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 423.920611] 342854 pages reserved [ 423.924583] ? should_fail+0x22d/0xd01 [ 423.930092] 0 pages cma reserved [ 423.933550] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 423.937495] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 423.940781] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 423.946136] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 423.952531] ? __lock_acquire+0x62f/0x4c20 [ 423.957607] syz-fuzzer cpuset=/ mems_allowed=0 [ 423.967828] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 423.981732] ? __lock_acquire+0x62f/0x4c20 [ 423.985972] ? should_fail+0x22d/0xd01 [ 423.989863] ? rcu_irq_exit+0x1a2/0x390 [ 423.993852] ? mark_held_locks+0x130/0x130 [ 423.998111] ? mark_held_locks+0x130/0x130 [ 424.002363] ? mark_held_locks+0xc7/0x130 [ 424.006528] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 424.011557] ? zap_class+0x640/0x640 [ 424.015273] ? print_usage_bug+0xc0/0xc0 [ 424.019386] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 424.024934] ? check_preemption_disabled+0x48/0x280 [ 424.029980] ? __lock_is_held+0xb5/0x140 [ 424.034048] __alloc_pages_nodemask+0xad8/0xea0 [ 424.038759] ? zap_class+0x640/0x640 [ 424.042479] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 424.047506] ? find_held_lock+0x36/0x1c0 [ 424.051579] ? ____cache_alloc_node+0x1c7/0x1e0 [ 424.056253] ? lock_downgrade+0x900/0x900 [ 424.060411] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 424.065977] cache_grow_begin+0xa5/0x8c0 [ 424.070053] ? do_raw_spin_unlock+0xa7/0x330 [ 424.074472] fallback_alloc+0x204/0x2e0 [ 424.078456] ____cache_alloc_node+0x1c7/0x1e0 [ 424.082957] kmem_cache_alloc_node+0xe3/0x730 [ 424.087459] ? ipv6_get_ifaddr+0x42e/0x620 [ 424.091708] __alloc_skb+0x119/0x770 [ 424.095427] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 424.100711] ? netdev_alloc_frag+0x1f0/0x1f0 [ 424.105123] ? lock_downgrade+0x900/0x900 [ 424.109290] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 424.114830] ? refcount_sub_and_test_checked+0x203/0x310 [ 424.120285] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 424.125742] ? addrconf_rs_timer+0x690/0x690 [ 424.130172] ndisc_alloc_skb+0x144/0x340 [ 424.134241] ndisc_send_rs+0x331/0x6e0 [ 424.138161] addrconf_rs_timer+0x314/0x690 [ 424.142438] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 424.146701] call_timer_fn+0x272/0x920 [ 424.150591] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 424.154829] ? process_timeout+0x40/0x40 [ 424.158910] ? __run_timers+0x7da/0xc70 [ 424.162901] ? _raw_spin_unlock_irq+0x27/0x80 [ 424.167422] ? _raw_spin_unlock_irq+0x27/0x80 [ 424.171919] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 424.176194] ? lockdep_hardirqs_on+0x296/0x5b0 [ 424.180801] ? trace_hardirqs_on+0xbd/0x310 [ 424.185126] ? kasan_check_read+0x11/0x20 [ 424.189284] ? __run_timers+0x7da/0xc70 [ 424.193278] ? trace_hardirqs_off_caller+0x310/0x310 [ 424.198384] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 424.202653] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 424.206888] __run_timers+0x7e5/0xc70 [ 424.210697] ? timer_fixup_init+0x70/0x70 [ 424.214848] ? kasan_check_read+0x11/0x20 [ 424.218998] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 424.224274] ? rcu_softirq_qs+0x20/0x20 [ 424.228252] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 424.233793] ? check_preemption_disabled+0x48/0x280 [ 424.238816] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 424.243594] ? retint_kernel+0x2d/0x2d [ 424.247486] ? trace_hardirqs_on_caller+0xc0/0x310 [ 424.252428] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 424.257190] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 424.262641] ? zap_class+0x640/0x640 [ 424.266364] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 424.271906] ? check_preemption_disabled+0x48/0x280 [ 424.276930] ? __lock_is_held+0xb5/0x140 [ 424.280992] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 424.286529] ? check_preemption_disabled+0x48/0x280 [ 424.291554] run_timer_softirq+0x52/0xb0 [ 424.295632] ? rcu_read_lock_sched_held+0x14f/0x180 [ 424.300650] __do_softirq+0x308/0xb7e [ 424.304474] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 424.308971] ? lock_downgrade+0x900/0x900 [ 424.313125] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 424.318246] ? pvclock_read_flags+0x160/0x160 [ 424.322748] ? lapic_next_event+0x5a/0x90 [ 424.326916] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 424.332477] ? kvm_clock_read+0x18/0x30 [ 424.336468] ? kvm_sched_clock_read+0x9/0x20 [ 424.340885] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 424.346430] ? check_preemption_disabled+0x48/0x280 [ 424.351459] irq_exit+0x17f/0x1c0 [ 424.354917] smp_apic_timer_interrupt+0x1cb/0x760 [ 424.359778] ? smp_reschedule_interrupt+0x109/0x650 [ 424.364798] ? smp_call_function_single_interrupt+0x650/0x650 [ 424.370681] ? interrupt_entry+0xb5/0xc0 [ 424.374746] ? trace_hardirqs_off_caller+0xbb/0x310 [ 424.379778] ? trace_hardirqs_off_caller+0xbb/0x310 [ 424.384796] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 424.389646] ? trace_hardirqs_on_caller+0x310/0x310 [ 424.394661] ? trace_hardirqs_on_caller+0x310/0x310 [ 424.399677] ? task_prio+0x50/0x50 [ 424.403220] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 424.408789] ? check_preemption_disabled+0x48/0x280 [ 424.413811] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 424.418671] apic_timer_interrupt+0xf/0x20 [ 424.422906] [ 424.425157] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 424.430099] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 424.448998] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 424.456710] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 424.463991] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 424.471259] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 424.478524] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 424.485791] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 424.493113] skb_clone+0x1bb/0x500 [ 424.496668] ? skb_split+0x11e0/0x11e0 [ 424.500562] ? preempt_notifier_register+0x200/0x200 [ 424.505666] ? __switch_to_asm+0x34/0x70 [ 424.509728] ? __switch_to_asm+0x34/0x70 [ 424.513785] ? __switch_to_asm+0x40/0x70 [ 424.517842] ? __switch_to_asm+0x34/0x70 [ 424.521910] ? __switch_to_asm+0x40/0x70 [ 424.526001] ? __switch_to_asm+0x40/0x70 [ 424.530061] ? __switch_to_asm+0x34/0x70 [ 424.534122] ? __switch_to_asm+0x34/0x70 [ 424.538189] ? __switch_to_asm+0x40/0x70 [ 424.542246] ? __switch_to_asm+0x34/0x70 [ 424.546316] bpf_clone_redirect+0xb9/0x490 [ 424.550561] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 424.555587] ? __sched_text_start+0x8/0x8 [ 424.559740] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 424.564511] ? find_held_lock+0x36/0x1c0 [ 424.568602] ? lock_acquire+0x1ed/0x520 [ 424.572579] ? bpf_test_run+0x3ee/0x7a0 [ 424.576555] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 424.582110] ? check_preemption_disabled+0x48/0x280 [ 424.587179] ? kasan_check_read+0x11/0x20 [ 424.591329] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 424.596601] ? rcu_softirq_qs+0x20/0x20 [ 424.600591] ? preempt_schedule+0x4d/0x60 [ 424.604757] ? ___preempt_schedule+0x16/0x18 [ 424.609182] ? bpf_test_run+0x271/0x7a0 [ 424.613189] ? netlink_diag_dump+0x2a0/0x2a0 [ 424.617603] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 424.623140] ? bpf_test_init.isra.10+0x70/0x100 [ 424.627823] ? bpf_prog_test_run_skb+0x762/0xd60 [ 424.632588] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 424.637443] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 424.642987] ? fput+0x130/0x1a0 [ 424.646274] ? __bpf_prog_get+0x9b/0x290 [ 424.650346] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 424.655189] ? bpf_prog_test_run+0x130/0x1a0 [ 424.659603] ? __x64_sys_bpf+0x3d8/0x520 [ 424.663663] ? bpf_prog_get+0x20/0x20 [ 424.667517] ? do_syscall_64+0x1b9/0x820 [ 424.671581] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 424.676966] ? syscall_return_slowpath+0x5e0/0x5e0 [ 424.681908] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 424.686761] ? trace_hardirqs_on_caller+0x310/0x310 [ 424.691781] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 424.696799] ? prepare_exit_to_usermode+0x291/0x3b0 [ 424.701829] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 424.706686] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 424.712071] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 424.712174] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 424.719007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 424.725606] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 424.734849] Call Trace: [ 424.745334] syz-executor4 cpuset=syz4 mems_allowed=0 [ 424.747924] [ 424.755164] dump_stack+0x244/0x39d [ 424.758800] ? dump_stack_print_info.cold.1+0x20/0x20 [ 424.764057] warn_alloc.cold.116+0xb7/0x1bd [ 424.768396] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 424.773244] ? lock_downgrade+0x900/0x900 [ 424.777418] ? trace_hardirqs_off+0xb8/0x310 [ 424.781831] ? trace_hardirqs_off+0xb8/0x310 [ 424.786277] __alloc_pages_slowpath+0x2651/0x2de0 [ 424.791168] ? warn_alloc+0x120/0x120 [ 424.794972] ? print_usage_bug+0xc0/0xc0 [ 424.799039] ? warn_alloc+0x120/0x120 [ 424.802844] ? warn_alloc+0x120/0x120 [ 424.806656] ? print_usage_bug+0xc0/0xc0 [ 424.810720] ? kvm_clock_read+0x18/0x30 [ 424.814700] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 424.819723] ? print_usage_bug+0xc0/0xc0 [ 424.823788] ? __lock_acquire+0x62f/0x4c20 [ 424.828028] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 424.833568] ? should_fail+0x22d/0xd01 [ 424.837459] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 424.842739] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 424.847887] ? __lock_acquire+0x62f/0x4c20 [ 424.852140] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 424.857253] ? __lock_acquire+0x62f/0x4c20 [ 424.861489] ? should_fail+0x22d/0xd01 [ 424.865376] ? rcu_irq_exit+0x1a2/0x390 [ 424.869360] ? mark_held_locks+0x130/0x130 [ 424.873617] ? mark_held_locks+0x130/0x130 [ 424.877867] ? mark_held_locks+0xc7/0x130 [ 424.882019] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 424.887055] ? zap_class+0x640/0x640 [ 424.890772] ? print_usage_bug+0xc0/0xc0 [ 424.894838] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 424.900379] ? check_preemption_disabled+0x48/0x280 [ 424.905425] ? __lock_is_held+0xb5/0x140 [ 424.909510] __alloc_pages_nodemask+0xad8/0xea0 [ 424.914207] ? zap_class+0x640/0x640 [ 424.917967] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 424.923046] ? find_held_lock+0x36/0x1c0 [ 424.927122] ? ____cache_alloc_node+0x1c7/0x1e0 [ 424.931830] ? lock_downgrade+0x900/0x900 [ 424.936008] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 424.941550] cache_grow_begin+0xa5/0x8c0 [ 424.945614] ? do_raw_spin_unlock+0xa7/0x330 [ 424.950183] fallback_alloc+0x204/0x2e0 [ 424.954175] ____cache_alloc_node+0x1c7/0x1e0 [ 424.958678] kmem_cache_alloc_node+0xe3/0x730 [ 424.963184] ? ipv6_get_ifaddr+0x42e/0x620 [ 424.967432] __alloc_skb+0x119/0x770 [ 424.971155] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 424.976442] ? netdev_alloc_frag+0x1f0/0x1f0 [ 424.980854] ? lock_downgrade+0x900/0x900 [ 424.985035] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 424.990573] ? refcount_sub_and_test_checked+0x203/0x310 [ 424.996026] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 425.001478] ? addrconf_rs_timer+0x690/0x690 [ 425.005902] ndisc_alloc_skb+0x144/0x340 [ 425.009973] ndisc_send_rs+0x331/0x6e0 [ 425.013870] addrconf_rs_timer+0x314/0x690 [ 425.018130] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 425.022383] call_timer_fn+0x272/0x920 [ 425.026294] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 425.030530] ? process_timeout+0x40/0x40 [ 425.034613] ? mark_held_locks+0xc7/0x130 [ 425.038769] ? _raw_spin_unlock_irq+0x27/0x80 [ 425.043264] ? _raw_spin_unlock_irq+0x27/0x80 [ 425.047759] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 425.051995] ? lockdep_hardirqs_on+0x296/0x5b0 [ 425.056582] ? trace_hardirqs_on+0xbd/0x310 [ 425.060905] ? kasan_check_read+0x11/0x20 [ 425.065056] ? __run_timers+0x7da/0xc70 [ 425.069037] ? trace_hardirqs_off_caller+0x310/0x310 [ 425.074153] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 425.078397] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 425.083126] __run_timers+0x7e5/0xc70 [ 425.086953] ? timer_fixup_init+0x70/0x70 [ 425.091126] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 425.096196] ? zap_class+0x640/0x640 [ 425.099925] ? print_usage_bug+0xc0/0xc0 [ 425.103989] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 425.109206] ? find_held_lock+0x36/0x1c0 [ 425.113303] ? zap_class+0x640/0x640 [ 425.117025] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 425.122571] ? check_preemption_disabled+0x48/0x280 [ 425.127602] ? __lock_is_held+0xb5/0x140 [ 425.131668] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 425.137222] ? check_preemption_disabled+0x48/0x280 [ 425.142262] run_timer_softirq+0x52/0xb0 [ 425.146324] ? rcu_read_lock_sched_held+0x14f/0x180 [ 425.151346] __do_softirq+0x308/0xb7e [ 425.155160] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 425.159672] ? lock_downgrade+0x900/0x900 [ 425.163826] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 425.168945] ? pvclock_read_flags+0x160/0x160 [ 425.173440] ? lapic_next_event+0x5a/0x90 [ 425.177589] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 425.183134] ? kvm_clock_read+0x18/0x30 [ 425.187115] ? kvm_sched_clock_read+0x9/0x20 [ 425.191569] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 425.197130] ? check_preemption_disabled+0x48/0x280 [ 425.202213] irq_exit+0x17f/0x1c0 [ 425.205671] smp_apic_timer_interrupt+0x1cb/0x760 [ 425.210516] ? smp_reschedule_interrupt+0x109/0x650 [ 425.215535] ? smp_call_function_single_interrupt+0x650/0x650 [ 425.221417] ? interrupt_entry+0xb5/0xc0 [ 425.225492] ? trace_hardirqs_off_caller+0xbb/0x310 [ 425.230507] ? trace_hardirqs_off_caller+0xbb/0x310 [ 425.235523] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 425.240393] ? trace_hardirqs_on_caller+0x310/0x310 [ 425.245425] ? trace_hardirqs_on_caller+0x310/0x310 [ 425.250442] ? task_prio+0x50/0x50 [ 425.253986] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 425.259528] ? check_preemption_disabled+0x48/0x280 [ 425.264553] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 425.269424] apic_timer_interrupt+0xf/0x20 [ 425.273664] [ 425.275908] RIP: 0010:lock_acquire+0x268/0x520 [ 425.280499] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 425.299402] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 425.307130] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 425.314429] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 425.321696] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 425.328969] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 425.336238] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 425.343539] ? lruvec_lru_size+0x450/0x450 [ 425.347773] ? kasan_check_read+0x11/0x20 [ 425.351957] ? lock_release+0xa00/0xa00 [ 425.355971] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 425.360907] down_read_trylock+0xda/0x140 [ 425.365056] ? shrink_slab+0x207/0x8c0 [ 425.368946] ? downgrade_write+0x270/0x270 [ 425.373193] shrink_slab+0x207/0x8c0 [ 425.376908] ? shrink_active_list+0x1f00/0x1f00 [ 425.381590] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 425.387216] ? __lock_acquire+0x62f/0x4c20 [ 425.391481] ? percpu_ref_get_many+0x240/0x240 [ 425.396079] ? print_usage_bug+0xc0/0xc0 [ 425.400184] shrink_node+0x431/0x16b0 [ 425.403989] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 425.409291] ? shrink_node_memcg+0x18f0/0x18f0 [ 425.413879] ? kvm_clock_read+0x18/0x30 [ 425.417859] ? ktime_get+0x2c1/0x400 [ 425.421612] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 425.426114] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 425.431669] ? __cpuset_node_allowed+0x19b/0x660 [ 425.436425] ? mark_held_locks+0x130/0x130 [ 425.440661] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 425.446371] ? zap_class+0x640/0x640 [ 425.450095] do_try_to_free_pages+0x3e7/0x1290 [ 425.454674] ? zap_class+0x640/0x640 [ 425.458406] ? shrink_node+0x16b0/0x16b0 [ 425.462469] ? __lock_is_held+0xb5/0x140 [ 425.466544] try_to_free_pages+0x4d0/0xb90 [ 425.470788] ? do_try_to_free_pages+0x1290/0x1290 [ 425.475648] ? lock_acquire+0x1ed/0x520 [ 425.479622] ? set_page_refcounted+0x280/0x280 [ 425.484214] ? lock_release+0xa00/0xa00 [ 425.488191] ? _raw_spin_unlock_irq+0x60/0x80 [ 425.492701] ? psi_memstall_enter+0x240/0x2b0 [ 425.497197] ? psi_memstall_tick+0x230/0x230 [ 425.501618] __alloc_pages_slowpath+0xa48/0x2de0 [ 425.506404] ? warn_alloc+0x120/0x120 [ 425.510209] ? mark_held_locks+0x130/0x130 [ 425.514454] ? find_get_entry+0xaae/0x1120 [ 425.518701] ? filemap_map_pages+0x1a20/0x1a20 [ 425.523293] ? zap_class+0x640/0x640 [ 425.527014] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 425.532553] ? check_preemption_disabled+0x48/0x280 [ 425.537579] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 425.543116] ? should_fail+0x22d/0xd01 [ 425.547014] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 425.552123] ? zap_class+0x640/0x640 [ 425.555872] ? __lock_is_held+0xb5/0x140 [ 425.559977] ? mark_held_locks+0x130/0x130 [ 425.564214] ? lock_release+0xa00/0xa00 [ 425.568192] ? perf_trace_sched_process_exec+0x860/0x860 [ 425.573647] ? xa_load+0x2ba/0x460 [ 425.577191] ? lock_downgrade+0x900/0x900 [ 425.581359] ? __might_sleep+0x95/0x190 [ 425.585344] __alloc_pages_nodemask+0xad8/0xea0 [ 425.590041] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 425.595061] ? __page_cache_alloc+0x191/0x5c0 [ 425.599559] ? xa_load+0x2e1/0x460 [ 425.603115] ? xa_clear_mark+0x40/0x40 [ 425.607018] ? zap_class+0x640/0x640 [ 425.610741] ? zap_class+0x640/0x640 [ 425.614459] ? zap_class+0x640/0x640 [ 425.618184] ? __do_page_cache_readahead+0x663/0x810 [ 425.623294] ? find_held_lock+0x36/0x1c0 [ 425.627376] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 425.632935] alloc_pages_current+0x173/0x350 [ 425.637375] __page_cache_alloc+0x38c/0x5c0 [ 425.641700] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 425.646645] ? kasan_check_read+0x11/0x20 [ 425.650795] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 425.656077] ? generic_perform_write+0x6a0/0x6a0 [ 425.660836] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 425.666393] ? check_preemption_disabled+0x48/0x280 [ 425.671421] filemap_fault+0x1595/0x25f0 [ 425.675498] ? __lock_page_or_retry+0xa00/0xa00 [ 425.680179] ? mark_held_locks+0x130/0x130 [ 425.684429] ? filemap_map_pages+0xd6b/0x1a20 [ 425.688946] ? lock_downgrade+0x900/0x900 [ 425.693113] ? check_preemption_disabled+0x48/0x280 [ 425.698171] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 425.703102] ? kasan_check_read+0x11/0x20 [ 425.707252] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 425.712529] ? rcu_softirq_qs+0x20/0x20 [ 425.716548] ? filemap_map_pages+0xd92/0x1a20 [ 425.721057] ? find_get_entries_tag+0x1400/0x1400 [ 425.725931] ? debug_object_destroy+0x2b0/0x2b0 [ 425.730619] ? lock_pi_update_atomic+0x150/0x150 [ 425.735378] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 425.740966] ? lock_acquire+0x1ed/0x520 [ 425.744948] ? ext4_filemap_fault+0x7a/0xad [ 425.749276] ? lock_release+0xa00/0xa00 [ 425.753250] ? perf_trace_sched_process_exec+0x860/0x860 [ 425.758705] ? print_usage_bug+0xc0/0xc0 [ 425.762767] ? print_usage_bug+0xc0/0xc0 [ 425.766848] ? down_read+0x8d/0x120 [ 425.770472] ? ext4_filemap_fault+0x7a/0xad [ 425.774796] ? __down_interruptible+0x700/0x700 [ 425.779480] ext4_filemap_fault+0x82/0xad [ 425.783648] __do_fault+0x100/0x6b0 [ 425.787291] ? find_held_lock+0x36/0x1c0 [ 425.791396] ? pmd_devmap_trans_unstable+0x220/0x220 [ 425.796503] ? mark_held_locks+0x130/0x130 [ 425.800739] ? mark_held_locks+0x130/0x130 [ 425.804986] ? kasan_check_read+0x11/0x20 [ 425.809139] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 425.814694] __handle_mm_fault+0x3ea0/0x5be0 [ 425.819106] ? perf_trace_lock+0x7a0/0x7a0 [ 425.823347] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 425.828198] ? __switch_to_asm+0x34/0x70 [ 425.832258] ? __switch_to_asm+0x34/0x70 [ 425.836333] ? zap_class+0x640/0x640 [ 425.840049] ? zap_class+0x640/0x640 [ 425.843762] ? __x64_sys_futex+0x53e/0x6a0 [ 425.848002] ? find_held_lock+0x36/0x1c0 [ 425.852075] ? handle_mm_fault+0x42a/0xc70 [ 425.856316] ? lock_downgrade+0x900/0x900 [ 425.860468] ? check_preemption_disabled+0x48/0x280 [ 425.865502] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 425.870432] ? kasan_check_read+0x11/0x20 [ 425.874584] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 425.879888] ? rcu_softirq_qs+0x20/0x20 [ 425.883871] ? trace_hardirqs_off_caller+0x310/0x310 [ 425.888983] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 425.894552] ? sync_mm_rss+0x9a/0x1c0 [ 425.898361] handle_mm_fault+0x54f/0xc70 [ 425.902455] ? __handle_mm_fault+0x5be0/0x5be0 [ 425.907056] ? find_vma+0x34/0x190 [ 425.910603] __do_page_fault+0x5e8/0xe60 [ 425.914667] ? trace_hardirqs_off+0xb8/0x310 [ 425.919086] do_page_fault+0xf2/0x7e0 [ 425.922903] ? vmalloc_sync_all+0x30/0x30 [ 425.927060] ? error_entry+0x70/0xd0 [ 425.930773] ? trace_hardirqs_off_caller+0xbb/0x310 [ 425.935817] ? trace_hardirqs_on_caller+0xc0/0x310 [ 425.940749] ? syscall_return_slowpath+0x5e0/0x5e0 [ 425.945708] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 425.950557] ? trace_hardirqs_on_caller+0x310/0x310 [ 425.955602] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 425.961066] ? prepare_exit_to_usermode+0x291/0x3b0 [ 425.966088] ? page_fault+0x8/0x30 [ 425.969643] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 425.974489] ? page_fault+0x8/0x30 [ 425.978032] page_fault+0x1e/0x30 [ 425.981502] RIP: 0033:0x45ddf3 [ 425.984705] Code: Bad RIP value. [ 425.988085] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 425.993446] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 426.000726] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 426.007993] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 426.015259] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 426.022526] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 426.029832] warn_alloc_show_mem: 1 callbacks suppressed [ 426.029844] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 426.029846] Mem-Info: [ 426.029876] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 426.029876] active_file:17 inactive_file:17 isolated_file:0 [ 426.029876] unevictable:0 dirty:4 writeback:0 unstable:0 [ 426.029876] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 426.029876] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 426.029876] free:13550 free_pcp:124 free_cma:0 [ 426.035224] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 426.042508] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 426.044919] Call Trace: [ 426.077986] 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 [ 426.087334] [ 426.115093] lowmem_reserve[]: 0 2818 6321 6321 [ 426.117685] dump_stack+0x244/0x39d [ 426.143769] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 426.145931] ? dump_stack_print_info.cold.1+0x20/0x20 [ 426.150483] lowmem_reserve[]: 0 0 3503 3503 [ 426.154127] warn_alloc.cold.116+0xb7/0x1bd [ 426.181449] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 426.186641] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 426.190924] lowmem_reserve[]: 0 0 0 0 [ 426.195256] ? lock_downgrade+0x900/0x900 [ 426.224126] 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 [ 426.228984] ? trace_hardirqs_off+0xb8/0x310 [ 426.232746] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 426.236891] ? trace_hardirqs_off+0xb8/0x310 [ 426.250394] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 426.254817] __alloc_pages_slowpath+0x2651/0x2de0 [ 426.269528] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 426.273965] ? warn_alloc+0x120/0x120 [ 426.288663] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 426.293509] ? print_usage_bug+0xc0/0xc0 [ 426.302319] 1360 total pagecache pages [ 426.306128] ? warn_alloc+0x120/0x120 [ 426.314708] 0 pages in swap cache [ 426.318750] ? warn_alloc+0x120/0x120 [ 426.322619] Swap cache stats: add 0, delete 0, find 0/0 [ 426.326452] ? print_usage_bug+0xc0/0xc0 [ 426.329879] Free swap = 0kB [ 426.333671] ? kvm_clock_read+0x18/0x30 [ 426.339006] Total swap = 0kB [ 426.343060] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 426.346064] 1965979 pages RAM [ 426.350047] ? print_usage_bug+0xc0/0xc0 [ 426.353043] 0 pages HighMem/MovableOnly [ 426.358051] ? __lock_acquire+0x62f/0x4c20 [ 426.361131] 342854 pages reserved [ 426.365207] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 426.369163] 0 pages cma reserved [ 426.373391] ? should_fail+0x22d/0xd01 [ 426.376906] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 426.382351] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 426.382369] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 426.382386] ? __lock_acquire+0x62f/0x4c20 [ 426.385798] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 426.389615] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 426.396080] syz-fuzzer cpuset=/ mems_allowed=0 [ 426.401365] ? __lock_acquire+0x62f/0x4c20 [ 426.434758] ? should_fail+0x22d/0xd01 [ 426.438645] ? rcu_irq_exit+0x1a2/0x390 [ 426.442637] ? mark_held_locks+0x130/0x130 [ 426.446875] ? mark_held_locks+0x130/0x130 [ 426.451132] ? mark_held_locks+0xc7/0x130 [ 426.455316] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 426.460361] ? zap_class+0x640/0x640 [ 426.464076] ? print_usage_bug+0xc0/0xc0 [ 426.468160] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 426.473701] ? check_preemption_disabled+0x48/0x280 [ 426.478742] ? __lock_is_held+0xb5/0x140 [ 426.482811] __alloc_pages_nodemask+0xad8/0xea0 [ 426.487479] ? zap_class+0x640/0x640 [ 426.491203] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 426.496231] ? find_held_lock+0x36/0x1c0 [ 426.500305] ? ____cache_alloc_node+0x1c7/0x1e0 [ 426.504993] ? lock_downgrade+0x900/0x900 [ 426.509157] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 426.514700] cache_grow_begin+0xa5/0x8c0 [ 426.518761] ? do_raw_spin_unlock+0xa7/0x330 [ 426.523199] fallback_alloc+0x204/0x2e0 [ 426.527210] ____cache_alloc_node+0x1c7/0x1e0 [ 426.531725] kmem_cache_alloc_node+0xe3/0x730 [ 426.536224] ? ipv6_get_ifaddr+0x42e/0x620 [ 426.540488] __alloc_skb+0x119/0x770 [ 426.544203] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 426.549486] ? netdev_alloc_frag+0x1f0/0x1f0 [ 426.553897] ? lock_downgrade+0x900/0x900 [ 426.558057] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 426.563597] ? refcount_sub_and_test_checked+0x203/0x310 [ 426.569070] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 426.574538] ? addrconf_rs_timer+0x690/0x690 [ 426.578959] ndisc_alloc_skb+0x144/0x340 [ 426.583026] ndisc_send_rs+0x331/0x6e0 [ 426.586955] addrconf_rs_timer+0x314/0x690 [ 426.591199] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 426.595452] call_timer_fn+0x272/0x920 [ 426.599376] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 426.603629] ? process_timeout+0x40/0x40 [ 426.607700] ? __run_timers+0x7da/0xc70 [ 426.611679] ? _raw_spin_unlock_irq+0x27/0x80 [ 426.616190] ? _raw_spin_unlock_irq+0x27/0x80 [ 426.620689] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 426.624945] ? lockdep_hardirqs_on+0x296/0x5b0 [ 426.629544] ? trace_hardirqs_on+0xbd/0x310 [ 426.633873] ? kasan_check_read+0x11/0x20 [ 426.638018] ? __run_timers+0x7da/0xc70 [ 426.641993] ? trace_hardirqs_off_caller+0x310/0x310 [ 426.647117] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 426.651363] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 426.655597] __run_timers+0x7e5/0xc70 [ 426.659410] ? timer_fixup_init+0x70/0x70 [ 426.663564] ? kasan_check_read+0x11/0x20 [ 426.667716] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 426.673009] ? rcu_softirq_qs+0x20/0x20 [ 426.676987] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 426.682527] ? check_preemption_disabled+0x48/0x280 [ 426.687553] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 426.692317] ? retint_kernel+0x2d/0x2d [ 426.696230] ? trace_hardirqs_on_caller+0xc0/0x310 [ 426.701170] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 426.705937] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 426.711391] ? zap_class+0x640/0x640 [ 426.715122] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 426.720675] ? check_preemption_disabled+0x48/0x280 [ 426.725702] ? __lock_is_held+0xb5/0x140 [ 426.729766] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 426.735320] ? check_preemption_disabled+0x48/0x280 [ 426.740347] run_timer_softirq+0x52/0xb0 [ 426.744415] ? rcu_read_lock_sched_held+0x14f/0x180 [ 426.749444] __do_softirq+0x308/0xb7e [ 426.753258] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 426.757774] ? lock_downgrade+0x900/0x900 [ 426.761930] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 426.767040] ? pvclock_read_flags+0x160/0x160 [ 426.771537] ? lapic_next_event+0x5a/0x90 [ 426.775739] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 426.781282] ? kvm_clock_read+0x18/0x30 [ 426.785256] ? kvm_sched_clock_read+0x9/0x20 [ 426.789666] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 426.795209] ? check_preemption_disabled+0x48/0x280 [ 426.800235] irq_exit+0x17f/0x1c0 [ 426.803707] smp_apic_timer_interrupt+0x1cb/0x760 [ 426.808549] ? smp_reschedule_interrupt+0x109/0x650 [ 426.813566] ? smp_call_function_single_interrupt+0x650/0x650 [ 426.819457] ? interrupt_entry+0xb5/0xc0 [ 426.823521] ? trace_hardirqs_off_caller+0xbb/0x310 [ 426.828536] ? trace_hardirqs_off_caller+0xbb/0x310 [ 426.833553] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 426.838398] ? trace_hardirqs_on_caller+0x310/0x310 [ 426.843432] ? trace_hardirqs_on_caller+0x310/0x310 [ 426.848461] ? task_prio+0x50/0x50 [ 426.852004] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 426.857558] ? check_preemption_disabled+0x48/0x280 [ 426.862594] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 426.867476] apic_timer_interrupt+0xf/0x20 [ 426.871708] [ 426.873968] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 426.878899] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 426.897823] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 426.905531] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 426.912799] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 426.920068] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 426.927367] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 426.934632] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 426.941948] skb_clone+0x1bb/0x500 [ 426.945497] ? skb_split+0x11e0/0x11e0 [ 426.949615] ? preempt_notifier_register+0x200/0x200 [ 426.954717] ? __switch_to_asm+0x34/0x70 [ 426.958791] ? __switch_to_asm+0x34/0x70 [ 426.962854] ? __switch_to_asm+0x40/0x70 [ 426.966924] ? __switch_to_asm+0x34/0x70 [ 426.970986] ? __switch_to_asm+0x40/0x70 [ 426.975047] ? __switch_to_asm+0x40/0x70 [ 426.979104] ? __switch_to_asm+0x34/0x70 [ 426.983174] ? __switch_to_asm+0x34/0x70 [ 426.987247] ? __switch_to_asm+0x40/0x70 [ 426.991308] ? __switch_to_asm+0x34/0x70 [ 426.995374] bpf_clone_redirect+0xb9/0x490 [ 426.999619] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 427.004641] ? __sched_text_start+0x8/0x8 [ 427.008790] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 427.013562] ? find_held_lock+0x36/0x1c0 [ 427.017632] ? lock_acquire+0x1ed/0x520 [ 427.021607] ? bpf_test_run+0x3ee/0x7a0 [ 427.025582] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 427.031126] ? check_preemption_disabled+0x48/0x280 [ 427.036164] ? kasan_check_read+0x11/0x20 [ 427.040317] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 427.045612] ? rcu_softirq_qs+0x20/0x20 [ 427.049594] ? preempt_schedule+0x4d/0x60 [ 427.053746] ? ___preempt_schedule+0x16/0x18 [ 427.058169] ? bpf_test_run+0x271/0x7a0 [ 427.062163] ? netlink_diag_dump+0x2a0/0x2a0 [ 427.066577] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 427.072112] ? bpf_test_init.isra.10+0x70/0x100 [ 427.076817] ? bpf_prog_test_run_skb+0x762/0xd60 [ 427.081717] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 427.086567] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 427.092117] ? fput+0x130/0x1a0 [ 427.095409] ? __bpf_prog_get+0x9b/0x290 [ 427.099483] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 427.104325] ? bpf_prog_test_run+0x130/0x1a0 [ 427.108741] ? __x64_sys_bpf+0x3d8/0x520 [ 427.112805] ? bpf_prog_get+0x20/0x20 [ 427.116687] ? do_syscall_64+0x1b9/0x820 [ 427.120748] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 427.126118] ? syscall_return_slowpath+0x5e0/0x5e0 [ 427.131052] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 427.135912] ? trace_hardirqs_on_caller+0x310/0x310 [ 427.140948] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 427.145967] ? prepare_exit_to_usermode+0x291/0x3b0 [ 427.150995] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 427.155853] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 427.161235] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 427.161341] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 427.168178] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 427.168187] Call Trace: [ 427.174759] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 427.184009] [ 427.186599] syz-executor4 cpuset=syz4 mems_allowed=0 [ 427.197078] dump_stack+0x244/0x39d [ 427.207933] ? dump_stack_print_info.cold.1+0x20/0x20 [ 427.213164] warn_alloc.cold.116+0xb7/0x1bd [ 427.217492] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 427.222354] ? lock_downgrade+0x900/0x900 [ 427.226524] ? trace_hardirqs_off+0xb8/0x310 [ 427.230944] ? trace_hardirqs_off+0xb8/0x310 [ 427.235371] __alloc_pages_slowpath+0x2651/0x2de0 [ 427.240284] ? warn_alloc+0x120/0x120 [ 427.244103] ? print_usage_bug+0xc0/0xc0 [ 427.248227] ? warn_alloc+0x120/0x120 [ 427.252033] ? warn_alloc+0x120/0x120 [ 427.255880] ? print_usage_bug+0xc0/0xc0 [ 427.259967] ? print_usage_bug+0xc0/0xc0 [ 427.264056] ? __lock_acquire+0x62f/0x4c20 [ 427.268309] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 427.273847] ? should_fail+0x22d/0xd01 [ 427.277755] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 427.282859] ? __lock_acquire+0x62f/0x4c20 [ 427.287101] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 427.292215] ? __lock_acquire+0x62f/0x4c20 [ 427.296477] ? should_fail+0x22d/0xd01 [ 427.300360] ? find_held_lock+0x36/0x1c0 [ 427.304448] ? mark_held_locks+0x130/0x130 [ 427.308725] ? mark_held_locks+0x130/0x130 [ 427.312962] ? zap_class+0x640/0x640 [ 427.316688] ? zap_class+0x640/0x640 [ 427.320403] ? print_usage_bug+0xc0/0xc0 [ 427.324462] ? do_raw_spin_unlock+0xa7/0x330 [ 427.328870] ? zap_class+0x640/0x640 [ 427.332582] ? print_usage_bug+0xc0/0xc0 [ 427.336642] ? wq_watchdog_touch+0x9c/0xfe [ 427.340907] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 427.346473] ? check_preemption_disabled+0x48/0x280 [ 427.351497] ? __lock_is_held+0xb5/0x140 [ 427.355566] __alloc_pages_nodemask+0xad8/0xea0 [ 427.360249] ? zap_class+0x640/0x640 [ 427.363966] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 427.368990] ? find_held_lock+0x36/0x1c0 [ 427.373106] ? ____cache_alloc_node+0x1c7/0x1e0 [ 427.377773] ? lock_downgrade+0x900/0x900 [ 427.381945] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 427.387492] cache_grow_begin+0xa5/0x8c0 [ 427.391566] ? do_raw_spin_unlock+0xa7/0x330 [ 427.395980] fallback_alloc+0x204/0x2e0 [ 427.399958] ____cache_alloc_node+0x1c7/0x1e0 [ 427.404461] kmem_cache_alloc_node+0xe3/0x730 [ 427.409002] ? ipv6_get_ifaddr+0x42e/0x620 [ 427.413257] __alloc_skb+0x119/0x770 [ 427.416981] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 427.422298] ? netdev_alloc_frag+0x1f0/0x1f0 [ 427.426726] ? lock_downgrade+0x900/0x900 [ 427.430913] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 427.436471] ? refcount_sub_and_test_checked+0x203/0x310 [ 427.441946] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 427.447418] ? addrconf_rs_timer+0x690/0x690 [ 427.451851] ndisc_alloc_skb+0x144/0x340 [ 427.455924] ndisc_send_rs+0x331/0x6e0 [ 427.459830] addrconf_rs_timer+0x314/0x690 [ 427.464128] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 427.468410] call_timer_fn+0x272/0x920 [ 427.472299] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 427.476554] ? process_timeout+0x40/0x40 [ 427.480624] ? mark_held_locks+0xc7/0x130 [ 427.484790] ? _raw_spin_unlock_irq+0x27/0x80 [ 427.489283] ? _raw_spin_unlock_irq+0x27/0x80 [ 427.493776] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 427.498011] ? lockdep_hardirqs_on+0x296/0x5b0 [ 427.502616] ? trace_hardirqs_on+0xbd/0x310 [ 427.506941] ? kasan_check_read+0x11/0x20 [ 427.511085] ? __run_timers+0x7da/0xc70 [ 427.515073] ? trace_hardirqs_off_caller+0x310/0x310 [ 427.520200] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 427.524437] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 427.528668] __run_timers+0x7e5/0xc70 [ 427.532480] ? timer_fixup_init+0x70/0x70 [ 427.536634] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 427.541666] ? zap_class+0x640/0x640 [ 427.545385] ? print_usage_bug+0xc0/0xc0 [ 427.549453] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 427.554662] ? find_held_lock+0x36/0x1c0 [ 427.558732] ? zap_class+0x640/0x640 [ 427.562465] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 427.568028] ? check_preemption_disabled+0x48/0x280 [ 427.573082] ? __lock_is_held+0xb5/0x140 [ 427.577188] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 427.582756] ? check_preemption_disabled+0x48/0x280 [ 427.587787] run_timer_softirq+0x52/0xb0 [ 427.591855] ? rcu_read_lock_sched_held+0x14f/0x180 [ 427.596901] __do_softirq+0x308/0xb7e [ 427.600725] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 427.605250] ? lock_downgrade+0x900/0x900 [ 427.609408] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 427.614522] ? pvclock_read_flags+0x160/0x160 [ 427.619030] ? lapic_next_event+0x5a/0x90 [ 427.623187] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 427.628730] ? kvm_clock_read+0x18/0x30 [ 427.632703] ? kvm_sched_clock_read+0x9/0x20 [ 427.637112] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 427.642649] ? check_preemption_disabled+0x48/0x280 [ 427.647672] irq_exit+0x17f/0x1c0 [ 427.651124] smp_apic_timer_interrupt+0x1cb/0x760 [ 427.655970] ? smp_reschedule_interrupt+0x109/0x650 [ 427.660986] ? smp_call_function_single_interrupt+0x650/0x650 [ 427.666883] ? interrupt_entry+0xb5/0xc0 [ 427.670982] ? trace_hardirqs_off_caller+0xbb/0x310 [ 427.675995] ? trace_hardirqs_off_caller+0xbb/0x310 [ 427.681014] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 427.685861] ? trace_hardirqs_on_caller+0x310/0x310 [ 427.690878] ? trace_hardirqs_on_caller+0x310/0x310 [ 427.695895] ? task_prio+0x50/0x50 [ 427.699456] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 427.705014] ? check_preemption_disabled+0x48/0x280 [ 427.710036] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 427.714894] apic_timer_interrupt+0xf/0x20 [ 427.719145] [ 427.721400] RIP: 0010:lock_acquire+0x268/0x520 [ 427.726101] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 427.745004] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 427.752715] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 427.759983] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 427.767254] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 427.774539] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 427.781844] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 427.789185] ? lruvec_lru_size+0x450/0x450 [ 427.793450] ? kasan_check_read+0x11/0x20 [ 427.797633] ? lock_release+0xa00/0xa00 [ 427.801644] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 427.806610] down_read_trylock+0xda/0x140 [ 427.810774] ? shrink_slab+0x207/0x8c0 [ 427.814675] ? downgrade_write+0x270/0x270 [ 427.818934] shrink_slab+0x207/0x8c0 [ 427.822654] ? shrink_active_list+0x1f00/0x1f00 [ 427.827334] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 427.832965] ? __lock_acquire+0x62f/0x4c20 [ 427.837203] ? percpu_ref_get_many+0x240/0x240 [ 427.841824] ? print_usage_bug+0xc0/0xc0 [ 427.845927] shrink_node+0x431/0x16b0 [ 427.849746] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 427.855060] ? shrink_node_memcg+0x18f0/0x18f0 [ 427.859652] ? kvm_clock_read+0x18/0x30 [ 427.863631] ? ktime_get+0x2c1/0x400 [ 427.867367] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 427.871879] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 427.877420] ? __cpuset_node_allowed+0x19b/0x660 [ 427.882183] ? mark_held_locks+0x130/0x130 [ 427.886422] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 427.892133] ? zap_class+0x640/0x640 [ 427.895863] do_try_to_free_pages+0x3e7/0x1290 [ 427.900456] ? zap_class+0x640/0x640 [ 427.904222] ? shrink_node+0x16b0/0x16b0 [ 427.908335] ? __lock_is_held+0xb5/0x140 [ 427.912442] try_to_free_pages+0x4d0/0xb90 [ 427.916702] ? do_try_to_free_pages+0x1290/0x1290 [ 427.921598] ? lock_acquire+0x1ed/0x520 [ 427.925595] ? set_page_refcounted+0x280/0x280 [ 427.930217] ? lock_release+0xa00/0xa00 [ 427.934225] ? _raw_spin_unlock_irq+0x60/0x80 [ 427.938751] ? psi_memstall_enter+0x240/0x2b0 [ 427.943282] ? psi_memstall_tick+0x230/0x230 [ 427.947732] __alloc_pages_slowpath+0xa48/0x2de0 [ 427.952569] ? warn_alloc+0x120/0x120 [ 427.956385] ? mark_held_locks+0x130/0x130 [ 427.960641] ? find_get_entry+0xaae/0x1120 [ 427.964891] ? filemap_map_pages+0x1a20/0x1a20 [ 427.969485] ? zap_class+0x640/0x640 [ 427.973205] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 427.978749] ? check_preemption_disabled+0x48/0x280 [ 427.983785] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 427.989342] ? should_fail+0x22d/0xd01 [ 427.993237] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 427.998342] ? zap_class+0x640/0x640 [ 428.002077] ? __lock_is_held+0xb5/0x140 [ 428.006144] ? mark_held_locks+0x130/0x130 [ 428.010389] ? lock_release+0xa00/0xa00 [ 428.014374] ? perf_trace_sched_process_exec+0x860/0x860 [ 428.019845] ? xa_load+0x2ba/0x460 [ 428.023418] ? lock_downgrade+0x900/0x900 [ 428.027605] ? __might_sleep+0x95/0x190 [ 428.031585] __alloc_pages_nodemask+0xad8/0xea0 [ 428.036265] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 428.041292] ? __page_cache_alloc+0x191/0x5c0 [ 428.045791] ? xa_load+0x2e1/0x460 [ 428.049347] ? xa_clear_mark+0x40/0x40 [ 428.053239] ? zap_class+0x640/0x640 [ 428.056962] ? zap_class+0x640/0x640 [ 428.060675] ? zap_class+0x640/0x640 [ 428.064390] ? __do_page_cache_readahead+0x663/0x810 [ 428.069502] ? find_held_lock+0x36/0x1c0 [ 428.073569] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 428.079122] alloc_pages_current+0x173/0x350 [ 428.083546] __page_cache_alloc+0x38c/0x5c0 [ 428.087868] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 428.092814] ? kasan_check_read+0x11/0x20 [ 428.096964] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 428.102245] ? generic_perform_write+0x6a0/0x6a0 [ 428.107022] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 428.112561] ? check_preemption_disabled+0x48/0x280 [ 428.117591] filemap_fault+0x1595/0x25f0 [ 428.121668] ? __lock_page_or_retry+0xa00/0xa00 [ 428.126361] ? mark_held_locks+0x130/0x130 [ 428.130608] ? filemap_map_pages+0xd6b/0x1a20 [ 428.135125] ? lock_downgrade+0x900/0x900 [ 428.139291] ? check_preemption_disabled+0x48/0x280 [ 428.144311] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 428.149243] ? kasan_check_read+0x11/0x20 [ 428.153389] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 428.158675] ? rcu_softirq_qs+0x20/0x20 [ 428.162662] ? filemap_map_pages+0xd92/0x1a20 [ 428.167182] ? find_get_entries_tag+0x1400/0x1400 [ 428.172028] ? debug_object_destroy+0x2b0/0x2b0 [ 428.176711] ? lock_pi_update_atomic+0x150/0x150 [ 428.181467] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 428.187016] ? lock_acquire+0x1ed/0x520 [ 428.190988] ? ext4_filemap_fault+0x7a/0xad [ 428.195315] ? lock_release+0xa00/0xa00 [ 428.199288] ? perf_trace_sched_process_exec+0x860/0x860 [ 428.204770] ? print_usage_bug+0xc0/0xc0 [ 428.208847] ? print_usage_bug+0xc0/0xc0 [ 428.212972] ? down_read+0x8d/0x120 [ 428.216594] ? ext4_filemap_fault+0x7a/0xad [ 428.220917] ? __down_interruptible+0x700/0x700 [ 428.225601] ext4_filemap_fault+0x82/0xad [ 428.229754] __do_fault+0x100/0x6b0 [ 428.233379] ? find_held_lock+0x36/0x1c0 [ 428.237493] ? pmd_devmap_trans_unstable+0x220/0x220 [ 428.242596] ? mark_held_locks+0x130/0x130 [ 428.246828] ? mark_held_locks+0x130/0x130 [ 428.251072] ? kasan_check_read+0x11/0x20 [ 428.255219] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 428.260763] __handle_mm_fault+0x3ea0/0x5be0 [ 428.265177] ? perf_trace_lock+0x7a0/0x7a0 [ 428.269433] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 428.274284] ? __switch_to_asm+0x34/0x70 [ 428.278349] ? __switch_to_asm+0x34/0x70 [ 428.282447] ? zap_class+0x640/0x640 [ 428.286176] ? zap_class+0x640/0x640 [ 428.289898] ? __x64_sys_futex+0x53e/0x6a0 [ 428.294169] ? find_held_lock+0x36/0x1c0 [ 428.298260] ? handle_mm_fault+0x42a/0xc70 [ 428.302523] ? lock_downgrade+0x900/0x900 [ 428.306711] ? check_preemption_disabled+0x48/0x280 [ 428.311769] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 428.316721] ? kasan_check_read+0x11/0x20 [ 428.320891] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 428.326197] ? rcu_softirq_qs+0x20/0x20 [ 428.330200] ? trace_hardirqs_off_caller+0x310/0x310 [ 428.335371] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 428.340967] ? sync_mm_rss+0x9a/0x1c0 [ 428.344777] handle_mm_fault+0x54f/0xc70 [ 428.348862] ? __handle_mm_fault+0x5be0/0x5be0 [ 428.353465] ? find_vma+0x34/0x190 [ 428.357028] __do_page_fault+0x5e8/0xe60 [ 428.361092] ? trace_hardirqs_off+0xb8/0x310 [ 428.365515] do_page_fault+0xf2/0x7e0 [ 428.369328] ? vmalloc_sync_all+0x30/0x30 [ 428.373496] ? error_entry+0x70/0xd0 [ 428.377255] ? trace_hardirqs_off_caller+0xbb/0x310 [ 428.382300] ? trace_hardirqs_on_caller+0xc0/0x310 [ 428.387250] ? syscall_return_slowpath+0x5e0/0x5e0 [ 428.392215] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 428.397079] ? trace_hardirqs_on_caller+0x310/0x310 [ 428.402114] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 428.407623] ? prepare_exit_to_usermode+0x291/0x3b0 [ 428.412700] ? page_fault+0x8/0x30 [ 428.416244] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 428.421085] ? page_fault+0x8/0x30 [ 428.424656] page_fault+0x1e/0x30 [ 428.428138] RIP: 0033:0x45ddf3 [ 428.431379] Code: Bad RIP value. [ 428.434762] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 428.440123] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 428.447405] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 428.454689] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 428.461974] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 428.469239] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 428.476535] warn_alloc_show_mem: 1 callbacks suppressed [ 428.476547] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 428.476549] Mem-Info: [ 428.476580] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 428.476580] active_file:17 inactive_file:17 isolated_file:0 [ 428.476580] unevictable:0 dirty:4 writeback:0 unstable:0 [ 428.476580] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 428.476580] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 428.476580] free:13550 free_pcp:124 free_cma:0 [ 428.481921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 428.489209] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 428.491622] Call Trace: [ 428.524689] 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 [ 428.534037] [ 428.561913] lowmem_reserve[]: 0 2818 6321 6321 [ 428.564535] dump_stack+0x244/0x39d [ 428.590643] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 428.592803] ? dump_stack_print_info.cold.1+0x20/0x20 [ 428.597356] lowmem_reserve[]: 0 0 3503 3503 [ 428.601002] warn_alloc.cold.116+0xb7/0x1bd [ 428.628297] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 428.633487] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 428.637779] lowmem_reserve[]: 0 0 0 0 [ 428.642100] ? lock_downgrade+0x900/0x900 [ 428.670957] 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 [ 428.675831] ? trace_hardirqs_off+0xb8/0x310 [ 428.679599] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 428.683739] ? trace_hardirqs_off+0xb8/0x310 [ 428.697248] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 428.701658] __alloc_pages_slowpath+0x2651/0x2de0 [ 428.716371] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 428.720790] ? warn_alloc+0x120/0x120 [ 428.735504] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 428.740334] ? print_usage_bug+0xc0/0xc0 [ 428.749167] 1360 total pagecache pages [ 428.752961] ? warn_alloc+0x120/0x120 [ 428.761516] 0 pages in swap cache [ 428.765562] ? warn_alloc+0x120/0x120 [ 428.769431] Swap cache stats: add 0, delete 0, find 0/0 [ 428.773251] ? print_usage_bug+0xc0/0xc0 [ 428.776681] Free swap = 0kB [ 428.780478] ? kvm_clock_read+0x18/0x30 [ 428.785813] Total swap = 0kB [ 428.789873] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 428.792865] 1965979 pages RAM [ 428.796828] ? print_usage_bug+0xc0/0xc0 [ 428.799819] 0 pages HighMem/MovableOnly [ 428.804831] ? __lock_acquire+0x62f/0x4c20 [ 428.807910] 342854 pages reserved [ 428.811968] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 428.816019] 0 pages cma reserved [ 428.820279] ? should_fail+0x22d/0xd01 [ 428.823787] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 428.829241] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 428.829275] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 428.832726] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 428.836504] ? __lock_acquire+0x62f/0x4c20 [ 428.842971] syz-fuzzer cpuset=/ mems_allowed=0 [ 428.848255] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 428.877498] ? __lock_acquire+0x62f/0x4c20 [ 428.881740] ? should_fail+0x22d/0xd01 [ 428.885629] ? rcu_irq_exit+0x1a2/0x390 [ 428.889616] ? mark_held_locks+0x130/0x130 [ 428.893890] ? mark_held_locks+0x130/0x130 [ 428.898127] ? mark_held_locks+0xc7/0x130 [ 428.902301] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 428.907322] ? zap_class+0x640/0x640 [ 428.911040] ? print_usage_bug+0xc0/0xc0 [ 428.915109] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 428.920691] ? check_preemption_disabled+0x48/0x280 [ 428.925769] ? __lock_is_held+0xb5/0x140 [ 428.929864] __alloc_pages_nodemask+0xad8/0xea0 [ 428.934548] ? zap_class+0x640/0x640 [ 428.938277] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 428.943309] ? find_held_lock+0x36/0x1c0 [ 428.947392] ? ____cache_alloc_node+0x1c7/0x1e0 [ 428.952588] ? lock_downgrade+0x900/0x900 [ 428.956747] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 428.962307] cache_grow_begin+0xa5/0x8c0 [ 428.966383] ? do_raw_spin_unlock+0xa7/0x330 [ 428.970802] fallback_alloc+0x204/0x2e0 [ 428.974800] ____cache_alloc_node+0x1c7/0x1e0 [ 428.979344] kmem_cache_alloc_node+0xe3/0x730 [ 428.983859] ? ipv6_get_ifaddr+0x42e/0x620 [ 428.988104] __alloc_skb+0x119/0x770 [ 428.991880] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 428.997179] ? netdev_alloc_frag+0x1f0/0x1f0 [ 429.001602] ? lock_downgrade+0x900/0x900 [ 429.005761] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 429.011300] ? refcount_sub_and_test_checked+0x203/0x310 [ 429.016756] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 429.022209] ? addrconf_rs_timer+0x690/0x690 [ 429.026632] ndisc_alloc_skb+0x144/0x340 [ 429.030720] ndisc_send_rs+0x331/0x6e0 [ 429.034641] addrconf_rs_timer+0x314/0x690 [ 429.038880] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 429.043128] call_timer_fn+0x272/0x920 [ 429.047024] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 429.051259] ? process_timeout+0x40/0x40 [ 429.055324] ? __run_timers+0x7da/0xc70 [ 429.059300] ? _raw_spin_unlock_irq+0x27/0x80 [ 429.063803] ? _raw_spin_unlock_irq+0x27/0x80 [ 429.068297] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 429.072530] ? lockdep_hardirqs_on+0x296/0x5b0 [ 429.077110] ? trace_hardirqs_on+0xbd/0x310 [ 429.081726] ? kasan_check_read+0x11/0x20 [ 429.085870] ? __run_timers+0x7da/0xc70 [ 429.089842] ? trace_hardirqs_off_caller+0x310/0x310 [ 429.094949] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 429.099209] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 429.103447] __run_timers+0x7e5/0xc70 [ 429.107255] ? timer_fixup_init+0x70/0x70 [ 429.111437] ? kasan_check_read+0x11/0x20 [ 429.115581] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 429.120854] ? rcu_softirq_qs+0x20/0x20 [ 429.124829] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 429.130382] ? check_preemption_disabled+0x48/0x280 [ 429.135410] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 429.140202] ? retint_kernel+0x2d/0x2d [ 429.144114] ? trace_hardirqs_on_caller+0xc0/0x310 [ 429.149065] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 429.153823] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 429.159289] ? zap_class+0x640/0x640 [ 429.163013] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 429.168554] ? check_preemption_disabled+0x48/0x280 [ 429.173583] ? __lock_is_held+0xb5/0x140 [ 429.177659] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 429.183199] ? check_preemption_disabled+0x48/0x280 [ 429.188226] run_timer_softirq+0x52/0xb0 [ 429.192306] ? rcu_read_lock_sched_held+0x14f/0x180 [ 429.197341] __do_softirq+0x308/0xb7e [ 429.201155] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 429.205656] ? lock_downgrade+0x900/0x900 [ 429.209813] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 429.214971] ? pvclock_read_flags+0x160/0x160 [ 429.219471] ? lapic_next_event+0x5a/0x90 [ 429.223645] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 429.229199] ? kvm_clock_read+0x18/0x30 [ 429.233184] ? kvm_sched_clock_read+0x9/0x20 [ 429.237603] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 429.243158] ? check_preemption_disabled+0x48/0x280 [ 429.248199] irq_exit+0x17f/0x1c0 [ 429.251659] smp_apic_timer_interrupt+0x1cb/0x760 [ 429.256504] ? smp_reschedule_interrupt+0x109/0x650 [ 429.261569] ? smp_call_function_single_interrupt+0x650/0x650 [ 429.267490] ? interrupt_entry+0xb5/0xc0 [ 429.271565] ? trace_hardirqs_off_caller+0xbb/0x310 [ 429.276602] ? trace_hardirqs_off_caller+0xbb/0x310 [ 429.281644] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 429.286505] ? trace_hardirqs_on_caller+0x310/0x310 [ 429.291527] ? trace_hardirqs_on_caller+0x310/0x310 [ 429.296550] ? task_prio+0x50/0x50 [ 429.300098] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 429.305656] ? check_preemption_disabled+0x48/0x280 [ 429.310683] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 429.315538] apic_timer_interrupt+0xf/0x20 [ 429.319770] [ 429.322013] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 429.326951] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 429.345894] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 429.353602] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 429.360868] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 429.368135] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 429.375434] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 429.382700] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 429.390036] skb_clone+0x1bb/0x500 [ 429.393581] ? skb_split+0x11e0/0x11e0 [ 429.397472] ? preempt_notifier_register+0x200/0x200 [ 429.402577] ? __switch_to_asm+0x34/0x70 [ 429.406652] ? __switch_to_asm+0x34/0x70 [ 429.410706] ? __switch_to_asm+0x40/0x70 [ 429.414763] ? __switch_to_asm+0x34/0x70 [ 429.418833] ? __switch_to_asm+0x40/0x70 [ 429.422888] ? __switch_to_asm+0x40/0x70 [ 429.426952] ? __switch_to_asm+0x34/0x70 [ 429.431028] ? __switch_to_asm+0x34/0x70 [ 429.435086] ? __switch_to_asm+0x40/0x70 [ 429.439142] ? __switch_to_asm+0x34/0x70 [ 429.443214] bpf_clone_redirect+0xb9/0x490 [ 429.447457] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 429.452482] ? __sched_text_start+0x8/0x8 [ 429.456646] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 429.461432] ? find_held_lock+0x36/0x1c0 [ 429.465520] ? lock_acquire+0x1ed/0x520 [ 429.469526] ? bpf_test_run+0x3ee/0x7a0 [ 429.473499] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 429.479042] ? check_preemption_disabled+0x48/0x280 [ 429.484099] ? kasan_check_read+0x11/0x20 [ 429.488265] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 429.493545] ? rcu_softirq_qs+0x20/0x20 [ 429.497522] ? preempt_schedule+0x4d/0x60 [ 429.501672] ? ___preempt_schedule+0x16/0x18 [ 429.506091] ? bpf_test_run+0x271/0x7a0 [ 429.510088] ? netlink_diag_dump+0x2a0/0x2a0 [ 429.514498] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 429.520031] ? bpf_test_init.isra.10+0x70/0x100 [ 429.524705] ? bpf_prog_test_run_skb+0x762/0xd60 [ 429.529506] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 429.534369] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 429.539940] ? fput+0x130/0x1a0 [ 429.543227] ? __bpf_prog_get+0x9b/0x290 [ 429.547293] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 429.552140] ? bpf_prog_test_run+0x130/0x1a0 [ 429.556596] ? __x64_sys_bpf+0x3d8/0x520 [ 429.560682] ? bpf_prog_get+0x20/0x20 [ 429.564534] ? do_syscall_64+0x1b9/0x820 [ 429.568611] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 429.573978] ? syscall_return_slowpath+0x5e0/0x5e0 [ 429.579033] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 429.583880] ? trace_hardirqs_on_caller+0x310/0x310 [ 429.588902] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 429.593953] ? prepare_exit_to_usermode+0x291/0x3b0 [ 429.598979] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 429.603825] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 429.609208] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 429.609296] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 429.616142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 429.616155] Call Trace: [ 429.616163] [ 429.616180] dump_stack+0x244/0x39d [ 429.616200] ? dump_stack_print_info.cold.1+0x20/0x20 [ 429.622765] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 429.632026] warn_alloc.cold.116+0xb7/0x1bd [ 429.634577] syz-executor4 cpuset=syz4 mems_allowed=0 [ 429.636722] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 429.670215] ? lock_downgrade+0x900/0x900 [ 429.674381] ? trace_hardirqs_off+0xb8/0x310 [ 429.678806] ? trace_hardirqs_off+0xb8/0x310 [ 429.683245] __alloc_pages_slowpath+0x2651/0x2de0 [ 429.688129] ? warn_alloc+0x120/0x120 [ 429.691950] ? print_usage_bug+0xc0/0xc0 [ 429.696015] ? warn_alloc+0x120/0x120 [ 429.699823] ? warn_alloc+0x120/0x120 [ 429.703650] ? print_usage_bug+0xc0/0xc0 [ 429.707735] ? kvm_clock_read+0x18/0x30 [ 429.711713] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 429.716740] ? print_usage_bug+0xc0/0xc0 [ 429.720812] ? __lock_acquire+0x62f/0x4c20 [ 429.725059] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 429.730602] ? should_fail+0x22d/0xd01 [ 429.734492] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 429.739795] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 429.744910] ? __lock_acquire+0x62f/0x4c20 [ 429.749187] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 429.754355] ? __lock_acquire+0x62f/0x4c20 [ 429.758609] ? should_fail+0x22d/0xd01 [ 429.762500] ? rcu_irq_exit+0x1a2/0x390 [ 429.766489] ? mark_held_locks+0x130/0x130 [ 429.770731] ? mark_held_locks+0x130/0x130 [ 429.774971] ? mark_held_locks+0xc7/0x130 [ 429.779119] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 429.784163] ? zap_class+0x640/0x640 [ 429.787882] ? print_usage_bug+0xc0/0xc0 [ 429.791986] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 429.797530] ? check_preemption_disabled+0x48/0x280 [ 429.802556] ? __lock_is_held+0xb5/0x140 [ 429.806637] __alloc_pages_nodemask+0xad8/0xea0 [ 429.811308] ? zap_class+0x640/0x640 [ 429.815031] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 429.820057] ? find_held_lock+0x36/0x1c0 [ 429.824129] ? ____cache_alloc_node+0x1c7/0x1e0 [ 429.828807] ? lock_downgrade+0x900/0x900 [ 429.832968] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 429.838508] cache_grow_begin+0xa5/0x8c0 [ 429.842592] ? do_raw_spin_unlock+0xa7/0x330 [ 429.847085] fallback_alloc+0x204/0x2e0 [ 429.851095] ____cache_alloc_node+0x1c7/0x1e0 [ 429.855596] kmem_cache_alloc_node+0xe3/0x730 [ 429.860097] ? ipv6_get_ifaddr+0x42e/0x620 [ 429.864345] __alloc_skb+0x119/0x770 [ 429.868060] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 429.873344] ? netdev_alloc_frag+0x1f0/0x1f0 [ 429.877756] ? lock_downgrade+0x900/0x900 [ 429.881918] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 429.887468] ? refcount_sub_and_test_checked+0x203/0x310 [ 429.892935] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 429.898391] ? addrconf_rs_timer+0x690/0x690 [ 429.902819] ndisc_alloc_skb+0x144/0x340 [ 429.906892] ndisc_send_rs+0x331/0x6e0 [ 429.910800] addrconf_rs_timer+0x314/0x690 [ 429.915055] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 429.919310] call_timer_fn+0x272/0x920 [ 429.923205] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 429.927447] ? process_timeout+0x40/0x40 [ 429.931526] ? mark_held_locks+0xc7/0x130 [ 429.935682] ? _raw_spin_unlock_irq+0x27/0x80 [ 429.940187] ? _raw_spin_unlock_irq+0x27/0x80 [ 429.944688] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 429.948931] ? lockdep_hardirqs_on+0x296/0x5b0 [ 429.953519] ? trace_hardirqs_on+0xbd/0x310 [ 429.957855] ? kasan_check_read+0x11/0x20 [ 429.962003] ? __run_timers+0x7da/0xc70 [ 429.965981] ? trace_hardirqs_off_caller+0x310/0x310 [ 429.971095] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 429.975354] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 429.979615] __run_timers+0x7e5/0xc70 [ 429.983434] ? timer_fixup_init+0x70/0x70 [ 429.987591] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 429.992619] ? zap_class+0x640/0x640 [ 429.996343] ? print_usage_bug+0xc0/0xc0 [ 430.000447] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 430.005650] ? find_held_lock+0x36/0x1c0 [ 430.009718] ? zap_class+0x640/0x640 [ 430.013444] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 430.019001] ? check_preemption_disabled+0x48/0x280 [ 430.024030] ? __lock_is_held+0xb5/0x140 [ 430.028098] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 430.033672] ? check_preemption_disabled+0x48/0x280 [ 430.038728] run_timer_softirq+0x52/0xb0 [ 430.042824] ? rcu_read_lock_sched_held+0x14f/0x180 [ 430.047874] __do_softirq+0x308/0xb7e [ 430.051691] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 430.056206] ? lock_downgrade+0x900/0x900 [ 430.060361] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 430.065475] ? pvclock_read_flags+0x160/0x160 [ 430.069974] ? lapic_next_event+0x5a/0x90 [ 430.074134] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 430.079696] ? kvm_clock_read+0x18/0x30 [ 430.083681] ? kvm_sched_clock_read+0x9/0x20 [ 430.088090] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 430.093646] ? check_preemption_disabled+0x48/0x280 [ 430.098689] irq_exit+0x17f/0x1c0 [ 430.102186] smp_apic_timer_interrupt+0x1cb/0x760 [ 430.107035] ? smp_reschedule_interrupt+0x109/0x650 [ 430.112052] ? smp_call_function_single_interrupt+0x650/0x650 [ 430.117946] ? interrupt_entry+0xb5/0xc0 [ 430.122010] ? trace_hardirqs_off_caller+0xbb/0x310 [ 430.127023] ? trace_hardirqs_off_caller+0xbb/0x310 [ 430.132044] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 430.136883] ? trace_hardirqs_on_caller+0x310/0x310 [ 430.141895] ? trace_hardirqs_on_caller+0x310/0x310 [ 430.146917] ? task_prio+0x50/0x50 [ 430.150484] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 430.156025] ? check_preemption_disabled+0x48/0x280 [ 430.161045] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 430.165894] apic_timer_interrupt+0xf/0x20 [ 430.170146] [ 430.172399] RIP: 0010:lock_acquire+0x268/0x520 [ 430.176997] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 430.195892] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 430.203602] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 430.210869] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 430.218162] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 430.225436] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 430.232707] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 430.240012] ? lruvec_lru_size+0x450/0x450 [ 430.244248] ? kasan_check_read+0x11/0x20 [ 430.248401] ? lock_release+0xa00/0xa00 [ 430.252382] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 430.257322] down_read_trylock+0xda/0x140 [ 430.261469] ? shrink_slab+0x207/0x8c0 [ 430.265361] ? downgrade_write+0x270/0x270 [ 430.269612] shrink_slab+0x207/0x8c0 [ 430.273342] ? shrink_active_list+0x1f00/0x1f00 [ 430.278023] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 430.283645] ? __lock_acquire+0x62f/0x4c20 [ 430.287882] ? percpu_ref_get_many+0x240/0x240 [ 430.292485] ? print_usage_bug+0xc0/0xc0 [ 430.296553] shrink_node+0x431/0x16b0 [ 430.300352] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 430.305653] ? shrink_node_memcg+0x18f0/0x18f0 [ 430.310241] ? kvm_clock_read+0x18/0x30 [ 430.314218] ? ktime_get+0x2c1/0x400 [ 430.317942] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 430.322443] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 430.327983] ? __cpuset_node_allowed+0x19b/0x660 [ 430.332738] ? mark_held_locks+0x130/0x130 [ 430.336981] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 430.342689] ? zap_class+0x640/0x640 [ 430.346430] do_try_to_free_pages+0x3e7/0x1290 [ 430.351011] ? zap_class+0x640/0x640 [ 430.354754] ? shrink_node+0x16b0/0x16b0 [ 430.358817] ? __lock_is_held+0xb5/0x140 [ 430.362889] try_to_free_pages+0x4d0/0xb90 [ 430.367178] ? do_try_to_free_pages+0x1290/0x1290 [ 430.372038] ? lock_acquire+0x1ed/0x520 [ 430.376021] ? set_page_refcounted+0x280/0x280 [ 430.380614] ? lock_release+0xa00/0xa00 [ 430.384589] ? _raw_spin_unlock_irq+0x60/0x80 [ 430.389086] ? psi_memstall_enter+0x240/0x2b0 [ 430.393586] ? psi_memstall_tick+0x230/0x230 [ 430.398007] __alloc_pages_slowpath+0xa48/0x2de0 [ 430.402791] ? warn_alloc+0x120/0x120 [ 430.406610] ? mark_held_locks+0x130/0x130 [ 430.410868] ? find_get_entry+0xaae/0x1120 [ 430.415113] ? filemap_map_pages+0x1a20/0x1a20 [ 430.419699] ? zap_class+0x640/0x640 [ 430.423421] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 430.428970] ? check_preemption_disabled+0x48/0x280 [ 430.433992] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 430.439556] ? should_fail+0x22d/0xd01 [ 430.443454] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 430.448561] ? zap_class+0x640/0x640 [ 430.452301] ? __lock_is_held+0xb5/0x140 [ 430.456371] ? mark_held_locks+0x130/0x130 [ 430.460628] ? lock_release+0xa00/0xa00 [ 430.464621] ? perf_trace_sched_process_exec+0x860/0x860 [ 430.470083] ? xa_load+0x2ba/0x460 [ 430.473642] ? lock_downgrade+0x900/0x900 [ 430.477815] ? __might_sleep+0x95/0x190 [ 430.481828] __alloc_pages_nodemask+0xad8/0xea0 [ 430.486531] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 430.491573] ? __page_cache_alloc+0x191/0x5c0 [ 430.496073] ? xa_load+0x2e1/0x460 [ 430.499632] ? xa_clear_mark+0x40/0x40 [ 430.503524] ? zap_class+0x640/0x640 [ 430.507246] ? zap_class+0x640/0x640 [ 430.510959] ? zap_class+0x640/0x640 [ 430.514694] ? __do_page_cache_readahead+0x663/0x810 [ 430.519817] ? find_held_lock+0x36/0x1c0 [ 430.523883] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 430.529481] alloc_pages_current+0x173/0x350 [ 430.533896] __page_cache_alloc+0x38c/0x5c0 [ 430.538236] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 430.543182] ? kasan_check_read+0x11/0x20 [ 430.547334] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 430.552618] ? generic_perform_write+0x6a0/0x6a0 [ 430.557394] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 430.562941] ? check_preemption_disabled+0x48/0x280 [ 430.567970] filemap_fault+0x1595/0x25f0 [ 430.572063] ? __lock_page_or_retry+0xa00/0xa00 [ 430.576734] ? mark_held_locks+0x130/0x130 [ 430.580999] ? filemap_map_pages+0xd6b/0x1a20 [ 430.585514] ? lock_downgrade+0x900/0x900 [ 430.589666] ? check_preemption_disabled+0x48/0x280 [ 430.594691] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 430.599626] ? kasan_check_read+0x11/0x20 [ 430.603772] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 430.609063] ? rcu_softirq_qs+0x20/0x20 [ 430.613052] ? filemap_map_pages+0xd92/0x1a20 [ 430.617577] ? find_get_entries_tag+0x1400/0x1400 [ 430.622426] ? debug_object_destroy+0x2b0/0x2b0 [ 430.627100] ? lock_pi_update_atomic+0x150/0x150 [ 430.631858] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 430.637414] ? lock_acquire+0x1ed/0x520 [ 430.641390] ? ext4_filemap_fault+0x7a/0xad [ 430.645738] ? lock_release+0xa00/0xa00 [ 430.649713] ? perf_trace_sched_process_exec+0x860/0x860 [ 430.655171] ? print_usage_bug+0xc0/0xc0 [ 430.659234] ? print_usage_bug+0xc0/0xc0 [ 430.663306] ? down_read+0x8d/0x120 [ 430.666947] ? ext4_filemap_fault+0x7a/0xad [ 430.671272] ? __down_interruptible+0x700/0x700 [ 430.675960] ext4_filemap_fault+0x82/0xad [ 430.680117] __do_fault+0x100/0x6b0 [ 430.683751] ? find_held_lock+0x36/0x1c0 [ 430.687836] ? pmd_devmap_trans_unstable+0x220/0x220 [ 430.692971] ? mark_held_locks+0x130/0x130 [ 430.697212] ? mark_held_locks+0x130/0x130 [ 430.701477] ? kasan_check_read+0x11/0x20 [ 430.705647] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 430.711194] __handle_mm_fault+0x3ea0/0x5be0 [ 430.715642] ? perf_trace_lock+0x7a0/0x7a0 [ 430.719918] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 430.724807] ? __switch_to_asm+0x34/0x70 [ 430.728875] ? __switch_to_asm+0x34/0x70 [ 430.732960] ? zap_class+0x640/0x640 [ 430.736675] ? zap_class+0x640/0x640 [ 430.740389] ? __x64_sys_futex+0x53e/0x6a0 [ 430.744628] ? find_held_lock+0x36/0x1c0 [ 430.748722] ? handle_mm_fault+0x42a/0xc70 [ 430.752965] ? lock_downgrade+0x900/0x900 [ 430.757121] ? check_preemption_disabled+0x48/0x280 [ 430.762159] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 430.767095] ? kasan_check_read+0x11/0x20 [ 430.771243] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 430.776524] ? rcu_softirq_qs+0x20/0x20 [ 430.780507] ? trace_hardirqs_off_caller+0x310/0x310 [ 430.785618] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 430.791165] ? sync_mm_rss+0x9a/0x1c0 [ 430.794976] handle_mm_fault+0x54f/0xc70 [ 430.799049] ? __handle_mm_fault+0x5be0/0x5be0 [ 430.803671] ? find_vma+0x34/0x190 [ 430.807248] __do_page_fault+0x5e8/0xe60 [ 430.811335] ? trace_hardirqs_off+0xb8/0x310 [ 430.815781] do_page_fault+0xf2/0x7e0 [ 430.819600] ? vmalloc_sync_all+0x30/0x30 [ 430.823769] ? error_entry+0x70/0xd0 [ 430.827503] ? trace_hardirqs_off_caller+0xbb/0x310 [ 430.832536] ? trace_hardirqs_on_caller+0xc0/0x310 [ 430.837504] ? syscall_return_slowpath+0x5e0/0x5e0 [ 430.842461] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 430.847305] ? trace_hardirqs_on_caller+0x310/0x310 [ 430.852323] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 430.857778] ? prepare_exit_to_usermode+0x291/0x3b0 [ 430.862798] ? page_fault+0x8/0x30 [ 430.866387] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 430.871231] ? page_fault+0x8/0x30 [ 430.874775] page_fault+0x1e/0x30 [ 430.878228] RIP: 0033:0x45ddf3 [ 430.881433] Code: Bad RIP value. [ 430.884796] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 430.890170] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 430.897439] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 430.904706] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 430.911977] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 430.919250] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 430.926573] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 430.926578] warn_alloc_show_mem: 1 callbacks suppressed [ 430.926586] Mem-Info: [ 430.933871] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 430.939247] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 430.939247] active_file:17 inactive_file:17 isolated_file:0 [ 430.939247] unevictable:0 dirty:4 writeback:0 unstable:0 [ 430.939247] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 430.939247] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 430.939247] free:13550 free_pcp:124 free_cma:0 [ 430.941616] Call Trace: [ 430.951262] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 430.984305] [ 430.986881] 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 [ 431.014675] dump_stack+0x244/0x39d [ 431.016805] lowmem_reserve[]: 0 2818 6321 6321 [ 431.042933] ? dump_stack_print_info.cold.1+0x20/0x20 [ 431.046543] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 431.051129] warn_alloc.cold.116+0xb7/0x1bd [ 431.056301] lowmem_reserve[]: 0 0 3503 3503 [ 431.083850] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 431.088160] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 431.092482] ? lock_downgrade+0x900/0x900 [ 431.097294] lowmem_reserve[]: 0 0 0 0 [ 431.126232] ? trace_hardirqs_off+0xb8/0x310 [ 431.130352] 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 [ 431.134144] ? trace_hardirqs_off+0xb8/0x310 [ 431.138549] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 431.152094] __alloc_pages_slowpath+0x2651/0x2de0 [ 431.156492] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 431.171267] ? warn_alloc+0x120/0x120 [ 431.176065] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 431.190789] ? print_usage_bug+0xc0/0xc0 [ 431.194579] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 431.203408] ? warn_alloc+0x120/0x120 [ 431.207448] 1360 total pagecache pages [ 431.216027] ? warn_alloc+0x120/0x120 [ 431.219809] 0 pages in swap cache [ 431.223678] ? print_usage_bug+0xc0/0xc0 [ 431.227454] Swap cache stats: add 0, delete 0, find 0/0 [ 431.230896] ? kvm_clock_read+0x18/0x30 [ 431.234940] Free swap = 0kB [ 431.240295] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 431.244259] Total swap = 0kB [ 431.247289] ? print_usage_bug+0xc0/0xc0 [ 431.252284] 1965979 pages RAM [ 431.255294] ? __lock_acquire+0x62f/0x4c20 [ 431.259331] 0 pages HighMem/MovableOnly [ 431.262439] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 431.266644] 342854 pages reserved [ 431.270617] ? should_fail+0x22d/0xd01 [ 431.276141] 0 pages cma reserved [ 431.279613] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 431.279631] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 431.283593] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 431.286858] ? __lock_acquire+0x62f/0x4c20 [ 431.292352] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 431.297210] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 431.297229] ? __lock_acquire+0x62f/0x4c20 [ 431.304097] syz-fuzzer cpuset=/ mems_allowed=0 [ 431.308329] ? should_fail+0x22d/0xd01 [ 431.308346] ? rcu_irq_exit+0x1a2/0x390 [ 431.340760] ? mark_held_locks+0x130/0x130 [ 431.345002] ? mark_held_locks+0x130/0x130 [ 431.349242] ? mark_held_locks+0xc7/0x130 [ 431.353396] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 431.358438] ? zap_class+0x640/0x640 [ 431.362172] ? print_usage_bug+0xc0/0xc0 [ 431.366246] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 431.371795] ? check_preemption_disabled+0x48/0x280 [ 431.376837] ? __lock_is_held+0xb5/0x140 [ 431.380910] __alloc_pages_nodemask+0xad8/0xea0 [ 431.385582] ? zap_class+0x640/0x640 [ 431.389301] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 431.394346] ? find_held_lock+0x36/0x1c0 [ 431.398445] ? ____cache_alloc_node+0x1c7/0x1e0 [ 431.403121] ? lock_downgrade+0x900/0x900 [ 431.407293] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 431.412854] cache_grow_begin+0xa5/0x8c0 [ 431.416930] ? do_raw_spin_unlock+0xa7/0x330 [ 431.421357] fallback_alloc+0x204/0x2e0 [ 431.425354] ____cache_alloc_node+0x1c7/0x1e0 [ 431.429868] kmem_cache_alloc_node+0xe3/0x730 [ 431.434363] ? ipv6_get_ifaddr+0x42e/0x620 [ 431.438641] __alloc_skb+0x119/0x770 [ 431.442402] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 431.447707] ? netdev_alloc_frag+0x1f0/0x1f0 [ 431.452136] ? lock_downgrade+0x900/0x900 [ 431.456298] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 431.461837] ? refcount_sub_and_test_checked+0x203/0x310 [ 431.467306] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 431.472759] ? addrconf_rs_timer+0x690/0x690 [ 431.477216] ndisc_alloc_skb+0x144/0x340 [ 431.481284] ndisc_send_rs+0x331/0x6e0 [ 431.485187] addrconf_rs_timer+0x314/0x690 [ 431.489435] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 431.493685] call_timer_fn+0x272/0x920 [ 431.497573] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 431.501810] ? process_timeout+0x40/0x40 [ 431.505884] ? __run_timers+0x7da/0xc70 [ 431.509862] ? _raw_spin_unlock_irq+0x27/0x80 [ 431.514360] ? _raw_spin_unlock_irq+0x27/0x80 [ 431.518852] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 431.523107] ? lockdep_hardirqs_on+0x296/0x5b0 [ 431.527701] ? trace_hardirqs_on+0xbd/0x310 [ 431.532029] ? kasan_check_read+0x11/0x20 [ 431.536197] ? __run_timers+0x7da/0xc70 [ 431.540185] ? trace_hardirqs_off_caller+0x310/0x310 [ 431.545295] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 431.549537] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 431.553769] __run_timers+0x7e5/0xc70 [ 431.557611] ? timer_fixup_init+0x70/0x70 [ 431.561758] ? kasan_check_read+0x11/0x20 [ 431.565910] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 431.571215] ? rcu_softirq_qs+0x20/0x20 [ 431.575196] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 431.580739] ? check_preemption_disabled+0x48/0x280 [ 431.585765] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 431.590523] ? retint_kernel+0x2d/0x2d [ 431.594431] ? trace_hardirqs_on_caller+0xc0/0x310 [ 431.599367] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 431.604123] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 431.609582] ? zap_class+0x640/0x640 [ 431.613309] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 431.618852] ? check_preemption_disabled+0x48/0x280 [ 431.623892] ? __lock_is_held+0xb5/0x140 [ 431.627954] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 431.633490] ? check_preemption_disabled+0x48/0x280 [ 431.638542] run_timer_softirq+0x52/0xb0 [ 431.642650] ? rcu_read_lock_sched_held+0x14f/0x180 [ 431.647682] __do_softirq+0x308/0xb7e [ 431.651491] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 431.655986] ? lock_downgrade+0x900/0x900 [ 431.660147] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 431.665267] ? pvclock_read_flags+0x160/0x160 [ 431.669765] ? lapic_next_event+0x5a/0x90 [ 431.673918] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 431.679497] ? kvm_clock_read+0x18/0x30 [ 431.683472] ? kvm_sched_clock_read+0x9/0x20 [ 431.687884] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 431.693439] ? check_preemption_disabled+0x48/0x280 [ 431.698464] irq_exit+0x17f/0x1c0 [ 431.701950] smp_apic_timer_interrupt+0x1cb/0x760 [ 431.706820] ? smp_reschedule_interrupt+0x109/0x650 [ 431.711842] ? smp_call_function_single_interrupt+0x650/0x650 [ 431.717741] ? interrupt_entry+0xb5/0xc0 [ 431.721834] ? trace_hardirqs_off_caller+0xbb/0x310 [ 431.726848] ? trace_hardirqs_off_caller+0xbb/0x310 [ 431.731871] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 431.736712] ? trace_hardirqs_on_caller+0x310/0x310 [ 431.741727] ? trace_hardirqs_on_caller+0x310/0x310 [ 431.746773] ? task_prio+0x50/0x50 [ 431.750321] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 431.755864] ? check_preemption_disabled+0x48/0x280 [ 431.760889] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 431.765769] apic_timer_interrupt+0xf/0x20 [ 431.769995] [ 431.772238] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 431.777194] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 431.796092] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 431.803801] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 431.811079] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 431.818348] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 431.825613] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 431.832888] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 431.840244] skb_clone+0x1bb/0x500 [ 431.843788] ? skb_split+0x11e0/0x11e0 [ 431.847684] ? preempt_notifier_register+0x200/0x200 [ 431.852801] ? __switch_to_asm+0x34/0x70 [ 431.856859] ? __switch_to_asm+0x34/0x70 [ 431.860985] ? __switch_to_asm+0x40/0x70 [ 431.865044] ? __switch_to_asm+0x34/0x70 [ 431.869102] ? __switch_to_asm+0x40/0x70 [ 431.873172] ? __switch_to_asm+0x40/0x70 [ 431.877232] ? __switch_to_asm+0x34/0x70 [ 431.881305] ? __switch_to_asm+0x34/0x70 [ 431.885379] ? __switch_to_asm+0x40/0x70 [ 431.889440] ? __switch_to_asm+0x34/0x70 [ 431.893510] bpf_clone_redirect+0xb9/0x490 [ 431.897753] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 431.902803] ? __sched_text_start+0x8/0x8 [ 431.906954] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 431.911726] ? find_held_lock+0x36/0x1c0 [ 431.915798] ? lock_acquire+0x1ed/0x520 [ 431.919776] ? bpf_test_run+0x3ee/0x7a0 [ 431.923754] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 431.929294] ? check_preemption_disabled+0x48/0x280 [ 431.934320] ? kasan_check_read+0x11/0x20 [ 431.938468] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 431.943746] ? rcu_softirq_qs+0x20/0x20 [ 431.947725] ? preempt_schedule+0x4d/0x60 [ 431.951901] ? ___preempt_schedule+0x16/0x18 [ 431.956321] ? bpf_test_run+0x271/0x7a0 [ 431.960313] ? netlink_diag_dump+0x2a0/0x2a0 [ 431.964730] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 431.970266] ? bpf_test_init.isra.10+0x70/0x100 [ 431.974939] ? bpf_prog_test_run_skb+0x762/0xd60 [ 431.979718] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 431.984568] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 431.990105] ? fput+0x130/0x1a0 [ 431.993394] ? __bpf_prog_get+0x9b/0x290 [ 431.997465] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 432.002311] ? bpf_prog_test_run+0x130/0x1a0 [ 432.006737] ? __x64_sys_bpf+0x3d8/0x520 [ 432.010798] ? bpf_prog_get+0x20/0x20 [ 432.014622] ? do_syscall_64+0x1b9/0x820 [ 432.018684] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 432.024052] ? syscall_return_slowpath+0x5e0/0x5e0 [ 432.028982] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 432.033825] ? trace_hardirqs_on_caller+0x310/0x310 [ 432.038889] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 432.043911] ? prepare_exit_to_usermode+0x291/0x3b0 [ 432.048947] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 432.053818] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 432.059212] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 432.059298] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 432.066144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 432.066157] Call Trace: [ 432.066165] [ 432.066183] dump_stack+0x244/0x39d [ 432.066202] ? dump_stack_print_info.cold.1+0x20/0x20 [ 432.072770] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 432.082031] warn_alloc.cold.116+0xb7/0x1bd [ 432.084580] syz-executor4 cpuset=syz4 mems_allowed=0 [ 432.086752] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 432.120281] ? lock_downgrade+0x900/0x900 [ 432.124442] ? trace_hardirqs_off+0xb8/0x310 [ 432.128872] ? trace_hardirqs_off+0xb8/0x310 [ 432.133278] ? noop_count+0x40/0x40 [ 432.136913] __alloc_pages_slowpath+0x2651/0x2de0 [ 432.141782] ? check_usage+0x1aa/0x790 [ 432.145678] ? warn_alloc+0x120/0x120 [ 432.149500] ? warn_alloc+0x120/0x120 [ 432.153298] ? __bfs+0xb0/0x780 [ 432.156621] ? warn_alloc+0x120/0x120 [ 432.160422] ? print_usage_bug+0xc0/0xc0 [ 432.164514] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 432.170051] ? should_fail+0x22d/0xd01 [ 432.173943] ? trace_event_raw_event_lock_acquire+0x440/0x440 [ 432.179847] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 432.184966] ? __lock_acquire+0x62f/0x4c20 [ 432.189217] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 432.194331] ? should_fail+0x22d/0xd01 [ 432.198223] ? mark_held_locks+0x130/0x130 [ 432.202467] ? mark_held_locks+0x130/0x130 [ 432.206708] ? print_usage_bug+0xc0/0xc0 [ 432.210771] ? find_held_lock+0x36/0x1c0 [ 432.214832] ? zap_class+0x640/0x640 [ 432.218554] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 432.224098] ? check_preemption_disabled+0x48/0x280 [ 432.229121] ? __lock_is_held+0xb5/0x140 [ 432.233213] __alloc_pages_nodemask+0xad8/0xea0 [ 432.237888] ? zap_class+0x640/0x640 [ 432.241607] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 432.246637] ? find_held_lock+0x36/0x1c0 [ 432.250712] ? ____cache_alloc_node+0x1c7/0x1e0 [ 432.255384] ? lock_downgrade+0x900/0x900 [ 432.259540] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 432.265083] cache_grow_begin+0xa5/0x8c0 [ 432.269144] ? do_raw_spin_unlock+0xa7/0x330 [ 432.273600] fallback_alloc+0x204/0x2e0 [ 432.277579] ____cache_alloc_node+0x1c7/0x1e0 [ 432.282094] kmem_cache_alloc_node+0xe3/0x730 [ 432.286590] ? mark_held_locks+0xc7/0x130 [ 432.290749] __alloc_skb+0x119/0x770 [ 432.294470] ? netdev_alloc_frag+0x1f0/0x1f0 [ 432.298880] ? do_raw_spin_trylock+0x270/0x270 [ 432.303463] ? kmem_cache_alloc_trace+0x353/0x750 [ 432.308312] ? queue_work_on+0x12c/0x1e0 [ 432.312395] ? switchdev_port_obj_del+0xdc/0x440 [ 432.317162] ? switchdev_trans_item_enqueue+0x260/0x260 [ 432.322528] ? mod_timer+0x631/0x1560 [ 432.326325] ? wake_up_klogd+0x180/0x180 [ 432.330385] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 432.335417] __br_mdb_notify+0x4ff/0x15d0 [ 432.339582] ? __br_mdb_add+0x7f0/0x7f0 [ 432.343560] ? zap_class+0x640/0x640 [ 432.347275] ? br_multicast_group_expired+0x96/0x610 [ 432.352394] br_mdb_notify+0x310/0x410 [ 432.356279] ? br_mdb_dump+0x27b0/0x27b0 [ 432.360341] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 432.365884] br_multicast_group_expired+0x1bc/0x610 [ 432.370900] ? br_mdb_free+0x80/0x80 [ 432.374642] call_timer_fn+0x272/0x920 [ 432.378532] ? br_mdb_free+0x80/0x80 [ 432.382246] ? process_timeout+0x40/0x40 [ 432.386315] ? mark_held_locks+0xc7/0x130 [ 432.390463] ? _raw_spin_unlock_irq+0x27/0x80 [ 432.394956] ? _raw_spin_unlock_irq+0x27/0x80 [ 432.399445] ? br_mdb_free+0x80/0x80 [ 432.403163] ? lockdep_hardirqs_on+0x296/0x5b0 [ 432.407749] ? trace_hardirqs_on+0xbd/0x310 [ 432.412067] ? kasan_check_read+0x11/0x20 [ 432.416208] ? __run_timers+0x7da/0xc70 [ 432.420202] ? trace_hardirqs_off_caller+0x310/0x310 [ 432.425309] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 432.429547] ? br_mdb_free+0x80/0x80 [ 432.433269] __run_timers+0x7e5/0xc70 [ 432.437077] ? timer_fixup_init+0x70/0x70 [ 432.441246] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 432.446265] ? zap_class+0x640/0x640 [ 432.449984] ? print_usage_bug+0xc0/0xc0 [ 432.454078] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 432.459313] ? find_held_lock+0x36/0x1c0 [ 432.463377] ? zap_class+0x640/0x640 [ 432.467094] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 432.472647] ? check_preemption_disabled+0x48/0x280 [ 432.477696] ? __lock_is_held+0xb5/0x140 [ 432.481760] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 432.487297] ? check_preemption_disabled+0x48/0x280 [ 432.492322] run_timer_softirq+0x52/0xb0 [ 432.496383] ? rcu_read_lock_sched_held+0x14f/0x180 [ 432.501402] __do_softirq+0x308/0xb7e [ 432.505213] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 432.509711] ? lock_downgrade+0x900/0x900 [ 432.513893] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 432.519008] ? pvclock_read_flags+0x160/0x160 [ 432.523503] ? lapic_next_event+0x5a/0x90 [ 432.527656] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 432.533196] ? kvm_clock_read+0x18/0x30 [ 432.537174] ? kvm_sched_clock_read+0x9/0x20 [ 432.541582] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 432.547123] ? check_preemption_disabled+0x48/0x280 [ 432.552179] irq_exit+0x17f/0x1c0 [ 432.555637] smp_apic_timer_interrupt+0x1cb/0x760 [ 432.560482] ? smp_reschedule_interrupt+0x109/0x650 [ 432.565514] ? smp_call_function_single_interrupt+0x650/0x650 [ 432.571432] ? interrupt_entry+0xb5/0xc0 [ 432.575502] ? trace_hardirqs_off_caller+0xbb/0x310 [ 432.580526] ? trace_hardirqs_off_caller+0xbb/0x310 [ 432.585544] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 432.590387] ? trace_hardirqs_on_caller+0x310/0x310 [ 432.595416] ? trace_hardirqs_on_caller+0x310/0x310 [ 432.600450] ? task_prio+0x50/0x50 [ 432.603998] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 432.609537] ? check_preemption_disabled+0x48/0x280 [ 432.614561] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 432.619415] apic_timer_interrupt+0xf/0x20 [ 432.623643] [ 432.625912] RIP: 0010:lock_acquire+0x268/0x520 [ 432.630543] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 432.649441] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 432.657169] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 432.664440] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 432.671722] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 432.679006] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 432.686270] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 432.693592] ? lruvec_lru_size+0x450/0x450 [ 432.697829] ? kasan_check_read+0x11/0x20 [ 432.702006] ? lock_release+0xa00/0xa00 [ 432.705989] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 432.710949] down_read_trylock+0xda/0x140 [ 432.715110] ? shrink_slab+0x207/0x8c0 [ 432.719001] ? downgrade_write+0x270/0x270 [ 432.723248] shrink_slab+0x207/0x8c0 [ 432.726964] ? shrink_active_list+0x1f00/0x1f00 [ 432.731644] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 432.737273] ? __lock_acquire+0x62f/0x4c20 [ 432.741513] ? percpu_ref_get_many+0x240/0x240 [ 432.746112] ? print_usage_bug+0xc0/0xc0 [ 432.750235] shrink_node+0x431/0x16b0 [ 432.754055] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 432.759372] ? shrink_node_memcg+0x18f0/0x18f0 [ 432.763965] ? kvm_clock_read+0x18/0x30 [ 432.767980] ? ktime_get+0x2c1/0x400 [ 432.771715] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 432.776215] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 432.781756] ? __cpuset_node_allowed+0x19b/0x660 [ 432.786516] ? mark_held_locks+0x130/0x130 [ 432.790763] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 432.796475] ? zap_class+0x640/0x640 [ 432.800200] do_try_to_free_pages+0x3e7/0x1290 [ 432.804785] ? zap_class+0x640/0x640 [ 432.808531] ? shrink_node+0x16b0/0x16b0 [ 432.812594] ? __lock_is_held+0xb5/0x140 [ 432.816671] try_to_free_pages+0x4d0/0xb90 [ 432.820917] ? do_try_to_free_pages+0x1290/0x1290 [ 432.825784] ? lock_acquire+0x1ed/0x520 [ 432.829763] ? set_page_refcounted+0x280/0x280 [ 432.834357] ? lock_release+0xa00/0xa00 [ 432.838337] ? _raw_spin_unlock_irq+0x60/0x80 [ 432.842835] ? psi_memstall_enter+0x240/0x2b0 [ 432.847331] ? psi_memstall_tick+0x230/0x230 [ 432.851753] __alloc_pages_slowpath+0xa48/0x2de0 [ 432.856539] ? warn_alloc+0x120/0x120 [ 432.860339] ? mark_held_locks+0x130/0x130 [ 432.864580] ? find_get_entry+0xaae/0x1120 [ 432.868835] ? filemap_map_pages+0x1a20/0x1a20 [ 432.873427] ? zap_class+0x640/0x640 [ 432.877158] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 432.882707] ? check_preemption_disabled+0x48/0x280 [ 432.887731] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 432.893273] ? should_fail+0x22d/0xd01 [ 432.897174] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 432.902283] ? zap_class+0x640/0x640 [ 432.906025] ? __lock_is_held+0xb5/0x140 [ 432.910097] ? mark_held_locks+0x130/0x130 [ 432.914337] ? lock_release+0xa00/0xa00 [ 432.918313] ? perf_trace_sched_process_exec+0x860/0x860 [ 432.923765] ? xa_load+0x2ba/0x460 [ 432.927308] ? lock_downgrade+0x900/0x900 [ 432.931462] ? __might_sleep+0x95/0x190 [ 432.935454] __alloc_pages_nodemask+0xad8/0xea0 [ 432.940135] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 432.945199] ? __page_cache_alloc+0x191/0x5c0 [ 432.949870] ? xa_load+0x2e1/0x460 [ 432.953414] ? xa_clear_mark+0x40/0x40 [ 432.957304] ? zap_class+0x640/0x640 [ 432.961030] ? zap_class+0x640/0x640 [ 432.964743] ? zap_class+0x640/0x640 [ 432.968461] ? __do_page_cache_readahead+0x663/0x810 [ 432.973573] ? find_held_lock+0x36/0x1c0 [ 432.977645] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 432.983198] alloc_pages_current+0x173/0x350 [ 432.987649] __page_cache_alloc+0x38c/0x5c0 [ 432.992002] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 432.996965] ? kasan_check_read+0x11/0x20 [ 433.001114] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 433.006392] ? generic_perform_write+0x6a0/0x6a0 [ 433.011177] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 433.016754] ? check_preemption_disabled+0x48/0x280 [ 433.021784] filemap_fault+0x1595/0x25f0 [ 433.025859] ? __lock_page_or_retry+0xa00/0xa00 [ 433.030533] ? mark_held_locks+0x130/0x130 [ 433.034778] ? filemap_map_pages+0xd6b/0x1a20 [ 433.039289] ? lock_downgrade+0x900/0x900 [ 433.043450] ? check_preemption_disabled+0x48/0x280 [ 433.048489] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 433.053478] ? kasan_check_read+0x11/0x20 [ 433.057624] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 433.062902] ? rcu_softirq_qs+0x20/0x20 [ 433.066943] ? filemap_map_pages+0xd92/0x1a20 [ 433.071466] ? find_get_entries_tag+0x1400/0x1400 [ 433.076327] ? debug_object_destroy+0x2b0/0x2b0 [ 433.081488] ? lock_pi_update_atomic+0x150/0x150 [ 433.086252] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 433.091822] ? lock_acquire+0x1ed/0x520 [ 433.095801] ? ext4_filemap_fault+0x7a/0xad [ 433.100148] ? lock_release+0xa00/0xa00 [ 433.104165] ? perf_trace_sched_process_exec+0x860/0x860 [ 433.109618] ? print_usage_bug+0xc0/0xc0 [ 433.113681] ? print_usage_bug+0xc0/0xc0 [ 433.117762] ? down_read+0x8d/0x120 [ 433.121389] ? ext4_filemap_fault+0x7a/0xad [ 433.125715] ? __down_interruptible+0x700/0x700 [ 433.130395] ext4_filemap_fault+0x82/0xad [ 433.134549] __do_fault+0x100/0x6b0 [ 433.138181] ? find_held_lock+0x36/0x1c0 [ 433.142249] ? pmd_devmap_trans_unstable+0x220/0x220 [ 433.147357] ? mark_held_locks+0x130/0x130 [ 433.151595] ? mark_held_locks+0x130/0x130 [ 433.155843] ? kasan_check_read+0x11/0x20 [ 433.160003] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 433.165549] __handle_mm_fault+0x3ea0/0x5be0 [ 433.169962] ? perf_trace_lock+0x7a0/0x7a0 [ 433.174208] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 433.179071] ? __switch_to_asm+0x34/0x70 [ 433.183132] ? __switch_to_asm+0x34/0x70 [ 433.187214] ? zap_class+0x640/0x640 [ 433.190937] ? zap_class+0x640/0x640 [ 433.194658] ? __x64_sys_futex+0x53e/0x6a0 [ 433.198898] ? find_held_lock+0x36/0x1c0 [ 433.202979] ? handle_mm_fault+0x42a/0xc70 [ 433.207229] ? lock_downgrade+0x900/0x900 [ 433.211394] ? check_preemption_disabled+0x48/0x280 [ 433.216418] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 433.221349] ? kasan_check_read+0x11/0x20 [ 433.225497] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 433.230775] ? rcu_softirq_qs+0x20/0x20 [ 433.234751] ? trace_hardirqs_off_caller+0x310/0x310 [ 433.239874] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 433.245440] ? sync_mm_rss+0x9a/0x1c0 [ 433.249250] handle_mm_fault+0x54f/0xc70 [ 433.253318] ? __handle_mm_fault+0x5be0/0x5be0 [ 433.257940] ? find_vma+0x34/0x190 [ 433.261488] __do_page_fault+0x5e8/0xe60 [ 433.265550] ? trace_hardirqs_off+0xb8/0x310 [ 433.269988] do_page_fault+0xf2/0x7e0 [ 433.273804] ? vmalloc_sync_all+0x30/0x30 [ 433.277969] ? error_entry+0x70/0xd0 [ 433.281687] ? trace_hardirqs_off_caller+0xbb/0x310 [ 433.286704] ? trace_hardirqs_on_caller+0xc0/0x310 [ 433.291666] ? syscall_return_slowpath+0x5e0/0x5e0 [ 433.296595] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 433.301437] ? trace_hardirqs_on_caller+0x310/0x310 [ 433.306472] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 433.311947] ? prepare_exit_to_usermode+0x291/0x3b0 [ 433.316964] ? page_fault+0x8/0x30 [ 433.320510] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 433.325353] ? page_fault+0x8/0x30 [ 433.328890] page_fault+0x1e/0x30 [ 433.332342] RIP: 0033:0x45ddf3 [ 433.335547] Code: Bad RIP value. [ 433.338916] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 433.344311] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 433.351576] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 433.358837] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 433.366101] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 433.373382] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 433.380690] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 433.380712] warn_alloc_show_mem: 1 callbacks suppressed [ 433.380716] Mem-Info: [ 433.387980] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 433.393348] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 433.393348] active_file:17 inactive_file:17 isolated_file:0 [ 433.393348] unevictable:0 dirty:4 writeback:0 unstable:0 [ 433.393348] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 433.393348] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 433.393348] free:13550 free_pcp:124 free_cma:0 [ 433.395721] Call Trace: [ 433.405104] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 433.438124] [ 433.440694] 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 [ 433.468455] dump_stack+0x244/0x39d [ 433.470573] lowmem_reserve[]: 0 2818 6321 6321 [ 433.496680] ? dump_stack_print_info.cold.1+0x20/0x20 [ 433.500281] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 433.504885] warn_alloc.cold.116+0xb7/0x1bd [ 433.510042] lowmem_reserve[]: 0 0 3503 3503 [ 433.537363] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 433.541658] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 433.545975] ? lock_downgrade+0x900/0x900 [ 433.550793] lowmem_reserve[]: 0 0 0 0 [ 433.579719] ? trace_hardirqs_off+0xb8/0x310 [ 433.583840] 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 [ 433.587668] ? trace_hardirqs_off+0xb8/0x310 [ 433.592059] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 433.605586] __alloc_pages_slowpath+0x2651/0x2de0 [ 433.609965] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 433.624725] ? warn_alloc+0x120/0x120 [ 433.629530] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 433.644265] ? print_usage_bug+0xc0/0xc0 [ 433.648042] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 433.656868] ? warn_alloc+0x120/0x120 [ 433.660905] 1360 total pagecache pages [ 433.669480] ? warn_alloc+0x120/0x120 [ 433.673266] 0 pages in swap cache [ 433.677165] ? print_usage_bug+0xc0/0xc0 [ 433.680978] Swap cache stats: add 0, delete 0, find 0/0 [ 433.684440] ? kvm_clock_read+0x18/0x30 [ 433.688474] Free swap = 0kB [ 433.693833] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 433.697795] Total swap = 0kB [ 433.700827] ? print_usage_bug+0xc0/0xc0 [ 433.705815] 1965979 pages RAM [ 433.708827] ? __lock_acquire+0x62f/0x4c20 [ 433.712863] 0 pages HighMem/MovableOnly [ 433.715963] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 433.720178] 342854 pages reserved [ 433.724145] ? should_fail+0x22d/0xd01 [ 433.729660] 0 pages cma reserved [ 433.733106] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 433.737146] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 433.740326] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 433.745582] syz-fuzzer cpuset=/ mems_allowed=0 [ 433.755799] ? __lock_acquire+0x62f/0x4c20 [ 433.769682] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 433.774783] ? __lock_acquire+0x62f/0x4c20 [ 433.779013] ? should_fail+0x22d/0xd01 [ 433.782913] ? rcu_irq_exit+0x1a2/0x390 [ 433.786914] ? mark_held_locks+0x130/0x130 [ 433.791170] ? mark_held_locks+0x130/0x130 [ 433.795410] ? mark_held_locks+0xc7/0x130 [ 433.799565] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 433.804583] ? zap_class+0x640/0x640 [ 433.808299] ? print_usage_bug+0xc0/0xc0 [ 433.812415] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 433.817977] ? check_preemption_disabled+0x48/0x280 [ 433.823002] ? __lock_is_held+0xb5/0x140 [ 433.827071] __alloc_pages_nodemask+0xad8/0xea0 [ 433.831739] ? zap_class+0x640/0x640 [ 433.835483] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 433.840509] ? find_held_lock+0x36/0x1c0 [ 433.844577] ? ____cache_alloc_node+0x1c7/0x1e0 [ 433.849248] ? lock_downgrade+0x900/0x900 [ 433.853403] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 433.858948] cache_grow_begin+0xa5/0x8c0 [ 433.863023] ? do_raw_spin_unlock+0xa7/0x330 [ 433.867462] fallback_alloc+0x204/0x2e0 [ 433.871452] ____cache_alloc_node+0x1c7/0x1e0 [ 433.875959] kmem_cache_alloc_node+0xe3/0x730 [ 433.880467] ? ipv6_get_ifaddr+0x42e/0x620 [ 433.884716] __alloc_skb+0x119/0x770 [ 433.888438] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 433.893734] ? netdev_alloc_frag+0x1f0/0x1f0 [ 433.898142] ? lock_downgrade+0x900/0x900 [ 433.902308] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 433.907864] ? refcount_sub_and_test_checked+0x203/0x310 [ 433.913319] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 433.918787] ? addrconf_rs_timer+0x690/0x690 [ 433.923228] ndisc_alloc_skb+0x144/0x340 [ 433.927293] ndisc_send_rs+0x331/0x6e0 [ 433.931215] addrconf_rs_timer+0x314/0x690 [ 433.935486] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 433.939732] call_timer_fn+0x272/0x920 [ 433.943619] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 433.947852] ? process_timeout+0x40/0x40 [ 433.951925] ? __run_timers+0x7da/0xc70 [ 433.955907] ? _raw_spin_unlock_irq+0x27/0x80 [ 433.960408] ? _raw_spin_unlock_irq+0x27/0x80 [ 433.964910] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 433.969147] ? lockdep_hardirqs_on+0x296/0x5b0 [ 433.973747] ? trace_hardirqs_on+0xbd/0x310 [ 433.978076] ? kasan_check_read+0x11/0x20 [ 433.982222] ? __run_timers+0x7da/0xc70 [ 433.986211] ? trace_hardirqs_off_caller+0x310/0x310 [ 433.991319] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 433.995558] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 433.999792] __run_timers+0x7e5/0xc70 [ 434.003606] ? timer_fixup_init+0x70/0x70 [ 434.007754] ? kasan_check_read+0x11/0x20 [ 434.011916] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 434.017192] ? rcu_softirq_qs+0x20/0x20 [ 434.021193] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 434.026733] ? check_preemption_disabled+0x48/0x280 [ 434.031759] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 434.036570] ? retint_kernel+0x2d/0x2d [ 434.040463] ? trace_hardirqs_on_caller+0xc0/0x310 [ 434.045391] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 434.050177] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 434.055634] ? zap_class+0x640/0x640 [ 434.059358] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 434.064897] ? check_preemption_disabled+0x48/0x280 [ 434.069937] ? __lock_is_held+0xb5/0x140 [ 434.074000] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 434.079587] ? check_preemption_disabled+0x48/0x280 [ 434.084608] run_timer_softirq+0x52/0xb0 [ 434.088704] ? rcu_read_lock_sched_held+0x14f/0x180 [ 434.093722] __do_softirq+0x308/0xb7e [ 434.097528] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 434.102035] ? lock_downgrade+0x900/0x900 [ 434.106193] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 434.111308] ? pvclock_read_flags+0x160/0x160 [ 434.115807] ? lapic_next_event+0x5a/0x90 [ 434.119960] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 434.125508] ? kvm_clock_read+0x18/0x30 [ 434.129482] ? kvm_sched_clock_read+0x9/0x20 [ 434.133891] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 434.139437] ? check_preemption_disabled+0x48/0x280 [ 434.144498] irq_exit+0x17f/0x1c0 [ 434.147966] smp_apic_timer_interrupt+0x1cb/0x760 [ 434.152824] ? smp_reschedule_interrupt+0x109/0x650 [ 434.157846] ? smp_call_function_single_interrupt+0x650/0x650 [ 434.163730] ? interrupt_entry+0xb5/0xc0 [ 434.167795] ? trace_hardirqs_off_caller+0xbb/0x310 [ 434.172814] ? trace_hardirqs_off_caller+0xbb/0x310 [ 434.177832] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 434.182677] ? trace_hardirqs_on_caller+0x310/0x310 [ 434.187707] ? trace_hardirqs_on_caller+0x310/0x310 [ 434.192723] ? task_prio+0x50/0x50 [ 434.196276] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 434.201815] ? check_preemption_disabled+0x48/0x280 [ 434.206851] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 434.211731] apic_timer_interrupt+0xf/0x20 [ 434.215975] [ 434.218220] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 434.223160] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 434.242058] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 434.249769] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 434.257035] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 434.264300] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 434.271565] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 434.278844] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 434.286194] skb_clone+0x1bb/0x500 [ 434.289741] ? skb_split+0x11e0/0x11e0 [ 434.293635] ? preempt_notifier_register+0x200/0x200 [ 434.298737] ? __switch_to_asm+0x34/0x70 [ 434.302795] ? __switch_to_asm+0x34/0x70 [ 434.306856] ? __switch_to_asm+0x40/0x70 [ 434.310913] ? __switch_to_asm+0x34/0x70 [ 434.314975] ? __switch_to_asm+0x40/0x70 [ 434.319037] ? __switch_to_asm+0x40/0x70 [ 434.323108] ? __switch_to_asm+0x34/0x70 [ 434.327178] ? __switch_to_asm+0x34/0x70 [ 434.331239] ? __switch_to_asm+0x40/0x70 [ 434.335300] ? __switch_to_asm+0x34/0x70 [ 434.339365] bpf_clone_redirect+0xb9/0x490 [ 434.343638] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 434.348661] ? __sched_text_start+0x8/0x8 [ 434.352814] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 434.357582] ? find_held_lock+0x36/0x1c0 [ 434.361673] ? lock_acquire+0x1ed/0x520 [ 434.365666] ? bpf_test_run+0x3ee/0x7a0 [ 434.369641] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 434.375189] ? check_preemption_disabled+0x48/0x280 [ 434.380209] ? kasan_check_read+0x11/0x20 [ 434.384353] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 434.389660] ? rcu_softirq_qs+0x20/0x20 [ 434.393641] ? preempt_schedule+0x4d/0x60 [ 434.397791] ? ___preempt_schedule+0x16/0x18 [ 434.402238] ? bpf_test_run+0x271/0x7a0 [ 434.406245] ? netlink_diag_dump+0x2a0/0x2a0 [ 434.410669] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 434.416204] ? bpf_test_init.isra.10+0x70/0x100 [ 434.420903] ? bpf_prog_test_run_skb+0x762/0xd60 [ 434.425666] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 434.430520] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 434.436054] ? fput+0x130/0x1a0 [ 434.439338] ? __bpf_prog_get+0x9b/0x290 [ 434.443407] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 434.448258] ? bpf_prog_test_run+0x130/0x1a0 [ 434.452668] ? __x64_sys_bpf+0x3d8/0x520 [ 434.456728] ? bpf_prog_get+0x20/0x20 [ 434.460549] ? do_syscall_64+0x1b9/0x820 [ 434.464606] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 434.469997] ? syscall_return_slowpath+0x5e0/0x5e0 [ 434.474926] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 434.479789] ? trace_hardirqs_on_caller+0x310/0x310 [ 434.484809] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 434.489859] ? prepare_exit_to_usermode+0x291/0x3b0 [ 434.494880] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 434.499752] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 434.505136] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 434.505230] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 434.512073] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 434.512079] Call Trace: [ 434.512086] [ 434.512104] dump_stack+0x244/0x39d [ 434.512122] ? dump_stack_print_info.cold.1+0x20/0x20 [ 434.518657] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 434.527956] warn_alloc.cold.116+0xb7/0x1bd [ 434.530505] syz-executor4 cpuset=syz4 mems_allowed=0 [ 434.532648] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 434.566201] ? lock_downgrade+0x900/0x900 [ 434.570376] ? trace_hardirqs_off+0xb8/0x310 [ 434.574817] ? trace_hardirqs_off+0xb8/0x310 [ 434.579238] __alloc_pages_slowpath+0x2651/0x2de0 [ 434.584111] ? warn_alloc+0x120/0x120 [ 434.587948] ? warn_alloc+0x120/0x120 [ 434.591754] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 434.596771] ? warn_alloc+0x120/0x120 [ 434.600591] ? print_usage_bug+0xc0/0xc0 [ 434.604691] ? print_usage_bug+0xc0/0xc0 [ 434.608752] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 434.613954] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 434.619509] ? should_fail+0x22d/0xd01 [ 434.623406] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 434.628510] ? __lock_acquire+0x62f/0x4c20 [ 434.632777] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 434.637882] ? should_fail+0x22d/0xd01 [ 434.641782] ? mark_held_locks+0x130/0x130 [ 434.646019] ? mark_held_locks+0x130/0x130 [ 434.650269] ? print_usage_bug+0xc0/0xc0 [ 434.654360] ? find_held_lock+0x36/0x1c0 [ 434.658424] ? zap_class+0x640/0x640 [ 434.662158] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 434.667701] ? check_preemption_disabled+0x48/0x280 [ 434.672748] ? __lock_is_held+0xb5/0x140 [ 434.676818] __alloc_pages_nodemask+0xad8/0xea0 [ 434.681490] ? zap_class+0x640/0x640 [ 434.685214] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 434.690258] ? find_held_lock+0x36/0x1c0 [ 434.694347] ? ____cache_alloc_node+0x1c7/0x1e0 [ 434.699019] ? lock_downgrade+0x900/0x900 [ 434.703183] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 434.708726] cache_grow_begin+0xa5/0x8c0 [ 434.712788] ? do_raw_spin_unlock+0xa7/0x330 [ 434.717208] fallback_alloc+0x204/0x2e0 [ 434.721192] ____cache_alloc_node+0x1c7/0x1e0 [ 434.725698] kmem_cache_alloc_node+0xe3/0x730 [ 434.730195] ? mark_held_locks+0xc7/0x130 [ 434.734354] __alloc_skb+0x119/0x770 [ 434.738082] ? netdev_alloc_frag+0x1f0/0x1f0 [ 434.742504] ? do_raw_spin_trylock+0x270/0x270 [ 434.747102] ? kmem_cache_alloc_trace+0x353/0x750 [ 434.751953] ? queue_work_on+0x12c/0x1e0 [ 434.756020] ? switchdev_port_obj_del+0xdc/0x440 [ 434.760777] ? switchdev_trans_item_enqueue+0x260/0x260 [ 434.766166] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 434.771225] __br_mdb_notify+0x4ff/0x15d0 [ 434.775391] ? __br_mdb_add+0x7f0/0x7f0 [ 434.779388] ? zap_class+0x640/0x640 [ 434.783110] ? br_multicast_group_expired+0x96/0x610 [ 434.788215] ? lock_downgrade+0x900/0x900 [ 434.792370] br_mdb_notify+0x310/0x410 [ 434.796268] ? br_mdb_dump+0x27b0/0x27b0 [ 434.800342] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 434.805895] br_multicast_group_expired+0x1bc/0x610 [ 434.810922] ? br_mdb_free+0x80/0x80 [ 434.814684] call_timer_fn+0x272/0x920 [ 434.818572] ? br_mdb_free+0x80/0x80 [ 434.822286] ? process_timeout+0x40/0x40 [ 434.826358] ? mark_held_locks+0xc7/0x130 [ 434.830513] ? _raw_spin_unlock_irq+0x27/0x80 [ 434.835011] ? _raw_spin_unlock_irq+0x27/0x80 [ 434.839519] ? br_mdb_free+0x80/0x80 [ 434.843235] ? lockdep_hardirqs_on+0x296/0x5b0 [ 434.847838] ? trace_hardirqs_on+0xbd/0x310 [ 434.852172] ? kasan_check_read+0x11/0x20 [ 434.856324] ? __run_timers+0x7da/0xc70 [ 434.860304] ? trace_hardirqs_off_caller+0x310/0x310 [ 434.865412] ? br_mdb_free+0x80/0x80 [ 434.869128] ? br_mdb_free+0x80/0x80 [ 434.872918] __run_timers+0x7e5/0xc70 [ 434.876750] ? timer_fixup_init+0x70/0x70 [ 434.880910] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 434.885950] ? zap_class+0x640/0x640 [ 434.889675] ? print_usage_bug+0xc0/0xc0 [ 434.893744] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 434.898978] ? find_held_lock+0x36/0x1c0 [ 434.903056] ? zap_class+0x640/0x640 [ 434.906775] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 434.912316] ? check_preemption_disabled+0x48/0x280 [ 434.917342] ? __lock_is_held+0xb5/0x140 [ 434.921411] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 434.926956] ? check_preemption_disabled+0x48/0x280 [ 434.931994] run_timer_softirq+0x52/0xb0 [ 434.936059] ? rcu_read_lock_sched_held+0x14f/0x180 [ 434.941075] __do_softirq+0x308/0xb7e [ 434.944879] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 434.949556] ? lock_downgrade+0x900/0x900 [ 434.953713] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 434.958825] ? pvclock_read_flags+0x160/0x160 [ 434.963349] ? lapic_next_event+0x5a/0x90 [ 434.967502] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 434.973046] ? kvm_clock_read+0x18/0x30 [ 434.977038] ? kvm_sched_clock_read+0x9/0x20 [ 434.981452] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 434.986992] ? check_preemption_disabled+0x48/0x280 [ 434.992034] irq_exit+0x17f/0x1c0 [ 434.995508] smp_apic_timer_interrupt+0x1cb/0x760 [ 435.000352] ? smp_reschedule_interrupt+0x109/0x650 [ 435.005373] ? smp_call_function_single_interrupt+0x650/0x650 [ 435.011258] ? interrupt_entry+0xb5/0xc0 [ 435.015324] ? trace_hardirqs_off_caller+0xbb/0x310 [ 435.020356] ? trace_hardirqs_off_caller+0xbb/0x310 [ 435.025403] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 435.030246] ? trace_hardirqs_on_caller+0x310/0x310 [ 435.035268] ? trace_hardirqs_on_caller+0x310/0x310 [ 435.040283] ? task_prio+0x50/0x50 [ 435.043841] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 435.049383] ? check_preemption_disabled+0x48/0x280 [ 435.054409] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 435.059278] apic_timer_interrupt+0xf/0x20 [ 435.063510] [ 435.065751] RIP: 0010:lock_acquire+0x268/0x520 [ 435.070341] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 435.089731] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 435.097441] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 435.104706] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 435.111973] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 435.119240] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 435.126506] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 435.133814] ? lruvec_lru_size+0x450/0x450 [ 435.138050] ? kasan_check_read+0x11/0x20 [ 435.142203] ? lock_release+0xa00/0xa00 [ 435.146190] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 435.151130] down_read_trylock+0xda/0x140 [ 435.155291] ? shrink_slab+0x207/0x8c0 [ 435.159184] ? downgrade_write+0x270/0x270 [ 435.163441] shrink_slab+0x207/0x8c0 [ 435.167162] ? shrink_active_list+0x1f00/0x1f00 [ 435.171845] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 435.177472] ? __lock_acquire+0x62f/0x4c20 [ 435.181713] ? percpu_ref_get_many+0x240/0x240 [ 435.186313] ? print_usage_bug+0xc0/0xc0 [ 435.190381] shrink_node+0x431/0x16b0 [ 435.194192] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 435.199492] ? shrink_node_memcg+0x18f0/0x18f0 [ 435.204087] ? kvm_clock_read+0x18/0x30 [ 435.208073] ? ktime_get+0x2c1/0x400 [ 435.211792] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 435.216310] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 435.221848] ? __cpuset_node_allowed+0x19b/0x660 [ 435.226606] ? mark_held_locks+0x130/0x130 [ 435.230842] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 435.236578] ? zap_class+0x640/0x640 [ 435.240313] do_try_to_free_pages+0x3e7/0x1290 [ 435.244922] ? zap_class+0x640/0x640 [ 435.248702] ? shrink_node+0x16b0/0x16b0 [ 435.252766] ? __lock_is_held+0xb5/0x140 [ 435.256857] try_to_free_pages+0x4d0/0xb90 [ 435.261095] ? do_try_to_free_pages+0x1290/0x1290 [ 435.265952] ? lock_acquire+0x1ed/0x520 [ 435.269930] ? set_page_refcounted+0x280/0x280 [ 435.274536] ? lock_release+0xa00/0xa00 [ 435.278516] ? _raw_spin_unlock_irq+0x60/0x80 [ 435.283028] ? psi_memstall_enter+0x240/0x2b0 [ 435.287523] ? psi_memstall_tick+0x230/0x230 [ 435.291947] __alloc_pages_slowpath+0xa48/0x2de0 [ 435.296774] ? warn_alloc+0x120/0x120 [ 435.300576] ? mark_held_locks+0x130/0x130 [ 435.304816] ? find_get_entry+0xaae/0x1120 [ 435.309061] ? filemap_map_pages+0x1a20/0x1a20 [ 435.313647] ? zap_class+0x640/0x640 [ 435.317367] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 435.322909] ? check_preemption_disabled+0x48/0x280 [ 435.327937] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 435.333478] ? should_fail+0x22d/0xd01 [ 435.337372] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 435.342494] ? zap_class+0x640/0x640 [ 435.346257] ? __lock_is_held+0xb5/0x140 [ 435.350323] ? mark_held_locks+0x130/0x130 [ 435.354600] ? lock_release+0xa00/0xa00 [ 435.358594] ? perf_trace_sched_process_exec+0x860/0x860 [ 435.364059] ? xa_load+0x2ba/0x460 [ 435.367602] ? lock_downgrade+0x900/0x900 [ 435.371754] ? __might_sleep+0x95/0x190 [ 435.375751] __alloc_pages_nodemask+0xad8/0xea0 [ 435.380427] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 435.385453] ? __page_cache_alloc+0x191/0x5c0 [ 435.389944] ? xa_load+0x2e1/0x460 [ 435.393479] ? xa_clear_mark+0x40/0x40 [ 435.397366] ? zap_class+0x640/0x640 [ 435.401091] ? zap_class+0x640/0x640 [ 435.404819] ? zap_class+0x640/0x640 [ 435.408530] ? __do_page_cache_readahead+0x663/0x810 [ 435.413633] ? find_held_lock+0x36/0x1c0 [ 435.417725] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 435.423282] alloc_pages_current+0x173/0x350 [ 435.427710] __page_cache_alloc+0x38c/0x5c0 [ 435.432029] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 435.436977] ? kasan_check_read+0x11/0x20 [ 435.441127] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 435.446416] ? generic_perform_write+0x6a0/0x6a0 [ 435.451190] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 435.456729] ? check_preemption_disabled+0x48/0x280 [ 435.461752] filemap_fault+0x1595/0x25f0 [ 435.465874] ? __lock_page_or_retry+0xa00/0xa00 [ 435.470539] ? mark_held_locks+0x130/0x130 [ 435.474777] ? filemap_map_pages+0xd6b/0x1a20 [ 435.479290] ? lock_downgrade+0x900/0x900 [ 435.483433] ? check_preemption_disabled+0x48/0x280 [ 435.488450] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 435.493379] ? kasan_check_read+0x11/0x20 [ 435.497525] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 435.502825] ? rcu_softirq_qs+0x20/0x20 [ 435.506832] ? filemap_map_pages+0xd92/0x1a20 [ 435.511351] ? find_get_entries_tag+0x1400/0x1400 [ 435.516208] ? debug_object_destroy+0x2b0/0x2b0 [ 435.520893] ? lock_pi_update_atomic+0x150/0x150 [ 435.525649] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 435.531199] ? lock_acquire+0x1ed/0x520 [ 435.535189] ? ext4_filemap_fault+0x7a/0xad [ 435.539521] ? lock_release+0xa00/0xa00 [ 435.543498] ? perf_trace_sched_process_exec+0x860/0x860 [ 435.548953] ? print_usage_bug+0xc0/0xc0 [ 435.553041] ? print_usage_bug+0xc0/0xc0 [ 435.557114] ? down_read+0x8d/0x120 [ 435.560743] ? ext4_filemap_fault+0x7a/0xad [ 435.565068] ? __down_interruptible+0x700/0x700 [ 435.569742] ext4_filemap_fault+0x82/0xad [ 435.573896] __do_fault+0x100/0x6b0 [ 435.577542] ? find_held_lock+0x36/0x1c0 [ 435.581608] ? pmd_devmap_trans_unstable+0x220/0x220 [ 435.586729] ? mark_held_locks+0x130/0x130 [ 435.590964] ? mark_held_locks+0x130/0x130 [ 435.595214] ? kasan_check_read+0x11/0x20 [ 435.599362] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 435.604952] __handle_mm_fault+0x3ea0/0x5be0 [ 435.609363] ? perf_trace_lock+0x7a0/0x7a0 [ 435.613608] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 435.618462] ? __switch_to_asm+0x34/0x70 [ 435.622537] ? __switch_to_asm+0x34/0x70 [ 435.626615] ? zap_class+0x640/0x640 [ 435.630328] ? zap_class+0x640/0x640 [ 435.634058] ? __x64_sys_futex+0x53e/0x6a0 [ 435.638300] ? find_held_lock+0x36/0x1c0 [ 435.642373] ? handle_mm_fault+0x42a/0xc70 [ 435.646613] ? lock_downgrade+0x900/0x900 [ 435.650767] ? check_preemption_disabled+0x48/0x280 [ 435.655785] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 435.660717] ? kasan_check_read+0x11/0x20 [ 435.664864] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 435.670139] ? rcu_softirq_qs+0x20/0x20 [ 435.674124] ? trace_hardirqs_off_caller+0x310/0x310 [ 435.679243] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 435.684795] ? sync_mm_rss+0x9a/0x1c0 [ 435.688600] handle_mm_fault+0x54f/0xc70 [ 435.692666] ? __handle_mm_fault+0x5be0/0x5be0 [ 435.697256] ? find_vma+0x34/0x190 [ 435.700803] __do_page_fault+0x5e8/0xe60 [ 435.704889] ? trace_hardirqs_off+0xb8/0x310 [ 435.709329] do_page_fault+0xf2/0x7e0 [ 435.713135] ? vmalloc_sync_all+0x30/0x30 [ 435.717293] ? error_entry+0x70/0xd0 [ 435.721009] ? trace_hardirqs_off_caller+0xbb/0x310 [ 435.726026] ? trace_hardirqs_on_caller+0xc0/0x310 [ 435.730961] ? syscall_return_slowpath+0x5e0/0x5e0 [ 435.735895] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 435.740754] ? trace_hardirqs_on_caller+0x310/0x310 [ 435.745770] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 435.751244] ? prepare_exit_to_usermode+0x291/0x3b0 [ 435.756263] ? page_fault+0x8/0x30 [ 435.759806] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 435.764683] ? page_fault+0x8/0x30 [ 435.768232] page_fault+0x1e/0x30 [ 435.771702] RIP: 0033:0x45ddf3 [ 435.774904] Code: Bad RIP value. [ 435.778271] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 435.783629] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 435.790903] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 435.798186] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 435.805453] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 435.812719] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 435.820015] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 435.820020] warn_alloc_show_mem: 1 callbacks suppressed [ 435.820028] Mem-Info: [ 435.827331] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 435.832705] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 435.832705] active_file:17 inactive_file:17 isolated_file:0 [ 435.832705] unevictable:0 dirty:4 writeback:0 unstable:0 [ 435.832705] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 435.832705] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 435.832705] free:13550 free_pcp:124 free_cma:0 [ 435.835077] Call Trace: [ 435.844468] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 435.877506] [ 435.880080] 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 [ 435.907867] dump_stack+0x244/0x39d [ 435.909984] lowmem_reserve[]: 0 2818 6321 6321 [ 435.936101] ? dump_stack_print_info.cold.1+0x20/0x20 [ 435.939702] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 435.944290] warn_alloc.cold.116+0xb7/0x1bd [ 435.949446] lowmem_reserve[]: 0 0 3503 3503 [ 435.976799] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 435.981095] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 435.985412] ? lock_downgrade+0x900/0x900 [ 435.990226] lowmem_reserve[]: 0 0 0 0 [ 436.019112] ? trace_hardirqs_off+0xb8/0x310 [ 436.023227] 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 [ 436.027036] ? trace_hardirqs_off+0xb8/0x310 [ 436.031448] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 436.044975] __alloc_pages_slowpath+0x2651/0x2de0 [ 436.049357] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 436.064107] ? warn_alloc+0x120/0x120 [ 436.068909] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 436.083653] ? print_usage_bug+0xc0/0xc0 [ 436.087438] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 436.096262] ? warn_alloc+0x120/0x120 [ 436.100300] 1360 total pagecache pages [ 436.108952] ? warn_alloc+0x120/0x120 [ 436.112737] 0 pages in swap cache [ 436.116622] ? print_usage_bug+0xc0/0xc0 [ 436.120401] Swap cache stats: add 0, delete 0, find 0/0 [ 436.123842] ? print_usage_bug+0xc0/0xc0 [ 436.127880] Free swap = 0kB [ 436.133261] ? __lock_acquire+0x62f/0x4c20 [ 436.137299] Total swap = 0kB [ 436.140319] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 436.144526] 1965979 pages RAM [ 436.147542] ? should_fail+0x22d/0xd01 [ 436.153049] 0 pages HighMem/MovableOnly [ 436.153058] 342854 pages reserved [ 436.156179] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 436.160039] 0 pages cma reserved [ 436.164027] ? __lock_acquire+0x62f/0x4c20 [ 436.167664] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 436.172565] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 436.175932] syz-fuzzer cpuset=/ mems_allowed=0 [ 436.180194] ? __lock_acquire+0x62f/0x4c20 [ 436.204302] ? should_fail+0x22d/0xd01 [ 436.208197] ? find_held_lock+0x36/0x1c0 [ 436.212273] ? mark_held_locks+0x130/0x130 [ 436.216518] ? mark_held_locks+0x130/0x130 [ 436.220772] ? zap_class+0x640/0x640 [ 436.224489] ? zap_class+0x640/0x640 [ 436.228211] ? print_usage_bug+0xc0/0xc0 [ 436.232274] ? do_raw_spin_unlock+0xa7/0x330 [ 436.236683] ? zap_class+0x640/0x640 [ 436.240397] ? print_usage_bug+0xc0/0xc0 [ 436.244464] ? wq_watchdog_touch+0x9c/0xfe [ 436.248705] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 436.254246] ? check_preemption_disabled+0x48/0x280 [ 436.259274] ? __lock_is_held+0xb5/0x140 [ 436.263349] __alloc_pages_nodemask+0xad8/0xea0 [ 436.268021] ? zap_class+0x640/0x640 [ 436.271747] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 436.276797] ? find_held_lock+0x36/0x1c0 [ 436.280895] ? ____cache_alloc_node+0x1c7/0x1e0 [ 436.285564] ? lock_downgrade+0x900/0x900 [ 436.289724] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 436.295266] cache_grow_begin+0xa5/0x8c0 [ 436.299330] ? do_raw_spin_unlock+0xa7/0x330 [ 436.303753] fallback_alloc+0x204/0x2e0 [ 436.307736] ____cache_alloc_node+0x1c7/0x1e0 [ 436.312284] kmem_cache_alloc_node+0xe3/0x730 [ 436.316778] ? ipv6_get_ifaddr+0x42e/0x620 [ 436.321054] __alloc_skb+0x119/0x770 [ 436.324772] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 436.330054] ? netdev_alloc_frag+0x1f0/0x1f0 [ 436.334460] ? lock_downgrade+0x900/0x900 [ 436.338617] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 436.344159] ? refcount_sub_and_test_checked+0x203/0x310 [ 436.349630] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 436.355081] ? addrconf_rs_timer+0x690/0x690 [ 436.359506] ndisc_alloc_skb+0x144/0x340 [ 436.363602] ndisc_send_rs+0x331/0x6e0 [ 436.367511] addrconf_rs_timer+0x314/0x690 [ 436.371840] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 436.376098] call_timer_fn+0x272/0x920 [ 436.379999] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 436.384234] ? process_timeout+0x40/0x40 [ 436.388302] ? __run_timers+0x7da/0xc70 [ 436.392277] ? _raw_spin_unlock_irq+0x27/0x80 [ 436.396787] ? _raw_spin_unlock_irq+0x27/0x80 [ 436.401292] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 436.405523] ? lockdep_hardirqs_on+0x296/0x5b0 [ 436.410103] ? trace_hardirqs_on+0xbd/0x310 [ 436.414421] ? kasan_check_read+0x11/0x20 [ 436.418576] ? __run_timers+0x7da/0xc70 [ 436.422558] ? trace_hardirqs_off_caller+0x310/0x310 [ 436.427659] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 436.431890] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 436.436119] __run_timers+0x7e5/0xc70 [ 436.439961] ? timer_fixup_init+0x70/0x70 [ 436.444105] ? kasan_check_read+0x11/0x20 [ 436.448260] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 436.453533] ? rcu_softirq_qs+0x20/0x20 [ 436.457516] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 436.463050] ? check_preemption_disabled+0x48/0x280 [ 436.468064] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 436.472813] ? retint_kernel+0x2d/0x2d [ 436.476693] ? trace_hardirqs_on_caller+0xc0/0x310 [ 436.481649] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 436.486407] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 436.491856] ? zap_class+0x640/0x640 [ 436.495569] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 436.501105] ? check_preemption_disabled+0x48/0x280 [ 436.506189] ? __lock_is_held+0xb5/0x140 [ 436.510264] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 436.515809] ? check_preemption_disabled+0x48/0x280 [ 436.520826] run_timer_softirq+0x52/0xb0 [ 436.524884] ? rcu_read_lock_sched_held+0x14f/0x180 [ 436.529909] __do_softirq+0x308/0xb7e [ 436.533722] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 436.538241] ? lock_downgrade+0x900/0x900 [ 436.542414] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 436.547553] ? pvclock_read_flags+0x160/0x160 [ 436.552059] ? lapic_next_event+0x5a/0x90 [ 436.556205] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 436.561754] ? kvm_clock_read+0x18/0x30 [ 436.565721] ? kvm_sched_clock_read+0x9/0x20 [ 436.570124] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 436.575660] ? check_preemption_disabled+0x48/0x280 [ 436.580712] irq_exit+0x17f/0x1c0 [ 436.584172] smp_apic_timer_interrupt+0x1cb/0x760 [ 436.589016] ? smp_reschedule_interrupt+0x109/0x650 [ 436.594033] ? smp_call_function_single_interrupt+0x650/0x650 [ 436.599915] ? interrupt_entry+0xb5/0xc0 [ 436.603983] ? trace_hardirqs_off_caller+0xbb/0x310 [ 436.609014] ? trace_hardirqs_off_caller+0xbb/0x310 [ 436.614045] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 436.618885] ? trace_hardirqs_on_caller+0x310/0x310 [ 436.623897] ? trace_hardirqs_on_caller+0x310/0x310 [ 436.628913] ? task_prio+0x50/0x50 [ 436.632457] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 436.637995] ? check_preemption_disabled+0x48/0x280 [ 436.643019] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 436.647864] apic_timer_interrupt+0xf/0x20 [ 436.652087] [ 436.654322] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 436.659265] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 436.678170] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 436.685873] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 436.693135] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 436.700408] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 436.707672] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 436.714934] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 436.722235] skb_clone+0x1bb/0x500 [ 436.725791] ? skb_split+0x11e0/0x11e0 [ 436.729683] ? preempt_notifier_register+0x200/0x200 [ 436.734784] ? __switch_to_asm+0x34/0x70 [ 436.738857] ? __switch_to_asm+0x34/0x70 [ 436.742914] ? __switch_to_asm+0x40/0x70 [ 436.746970] ? __switch_to_asm+0x34/0x70 [ 436.751025] ? __switch_to_asm+0x40/0x70 [ 436.755081] ? __switch_to_asm+0x40/0x70 [ 436.759134] ? __switch_to_asm+0x34/0x70 [ 436.763196] ? __switch_to_asm+0x34/0x70 [ 436.767251] ? __switch_to_asm+0x40/0x70 [ 436.771320] ? __switch_to_asm+0x34/0x70 [ 436.775380] bpf_clone_redirect+0xb9/0x490 [ 436.779616] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 436.784657] ? __sched_text_start+0x8/0x8 [ 436.788820] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 436.793620] ? find_held_lock+0x36/0x1c0 [ 436.797689] ? lock_acquire+0x1ed/0x520 [ 436.801662] ? bpf_test_run+0x3ee/0x7a0 [ 436.805637] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 436.811178] ? check_preemption_disabled+0x48/0x280 [ 436.816205] ? kasan_check_read+0x11/0x20 [ 436.820349] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 436.825640] ? rcu_softirq_qs+0x20/0x20 [ 436.829627] ? preempt_schedule+0x4d/0x60 [ 436.833795] ? ___preempt_schedule+0x16/0x18 [ 436.838226] ? bpf_test_run+0x271/0x7a0 [ 436.842229] ? netlink_diag_dump+0x2a0/0x2a0 [ 436.846637] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 436.852175] ? bpf_test_init.isra.10+0x70/0x100 [ 436.856848] ? bpf_prog_test_run_skb+0x762/0xd60 [ 436.861612] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 436.866470] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 436.872018] ? fput+0x130/0x1a0 [ 436.875315] ? __bpf_prog_get+0x9b/0x290 [ 436.879382] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 436.884224] ? bpf_prog_test_run+0x130/0x1a0 [ 436.888633] ? __x64_sys_bpf+0x3d8/0x520 [ 436.892716] ? bpf_prog_get+0x20/0x20 [ 436.896537] ? do_syscall_64+0x1b9/0x820 [ 436.900597] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 436.905964] ? syscall_return_slowpath+0x5e0/0x5e0 [ 436.910906] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 436.915756] ? trace_hardirqs_on_caller+0x310/0x310 [ 436.920773] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 436.925793] ? prepare_exit_to_usermode+0x291/0x3b0 [ 436.930812] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 436.935679] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 436.941059] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 436.941191] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 436.948109] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 436.948113] Call Trace: [ 436.948118] [ 436.948130] dump_stack+0x244/0x39d [ 436.948141] ? dump_stack_print_info.cold.1+0x20/0x20 [ 436.948167] warn_alloc.cold.116+0xb7/0x1bd [ 436.948187] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 436.954830] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 436.964013] ? lock_downgrade+0x900/0x900 [ 436.964035] ? trace_hardirqs_off+0xb8/0x310 [ 436.966950] syz-executor4 cpuset=syz4 mems_allowed=0 [ 436.969105] ? trace_hardirqs_off+0xb8/0x310 [ 437.015673] __alloc_pages_slowpath+0x2651/0x2de0 [ 437.020547] ? warn_alloc+0x120/0x120 [ 437.024361] ? warn_alloc+0x120/0x120 [ 437.028171] ? warn_alloc+0x120/0x120 [ 437.031974] ? print_usage_bug+0xc0/0xc0 [ 437.036052] ? mark_held_locks+0x130/0x130 [ 437.040295] ? kvm_clock_read+0x18/0x30 [ 437.044283] ? print_usage_bug+0xc0/0xc0 [ 437.048356] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 437.053895] ? should_fail+0x22d/0xd01 [ 437.057789] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 437.062890] ? __lock_acquire+0x62f/0x4c20 [ 437.067133] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 437.072267] ? __lock_acquire+0x62f/0x4c20 [ 437.076513] ? should_fail+0x22d/0xd01 [ 437.080882] ? mark_held_locks+0x130/0x130 [ 437.085122] ? mark_held_locks+0x130/0x130 [ 437.089378] ? zap_class+0x640/0x640 [ 437.093097] ? print_usage_bug+0xc0/0xc0 [ 437.097163] ? find_held_lock+0x36/0x1c0 [ 437.101231] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 437.106773] ? check_preemption_disabled+0x48/0x280 [ 437.111820] ? __lock_is_held+0xb5/0x140 [ 437.115892] __alloc_pages_nodemask+0xad8/0xea0 [ 437.120567] ? zap_class+0x640/0x640 [ 437.124285] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 437.129312] ? find_held_lock+0x36/0x1c0 [ 437.133388] ? ____cache_alloc_node+0x1c7/0x1e0 [ 437.138060] ? lock_downgrade+0x900/0x900 [ 437.142216] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 437.147768] cache_grow_begin+0xa5/0x8c0 [ 437.151877] ? do_raw_spin_unlock+0xa7/0x330 [ 437.156291] fallback_alloc+0x204/0x2e0 [ 437.160291] ____cache_alloc_node+0x1c7/0x1e0 [ 437.164791] kmem_cache_alloc_node+0xe3/0x730 [ 437.169289] ? ipv6_get_ifaddr+0x42e/0x620 [ 437.173536] __alloc_skb+0x119/0x770 [ 437.177252] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 437.182548] ? netdev_alloc_frag+0x1f0/0x1f0 [ 437.186957] ? lock_downgrade+0x900/0x900 [ 437.191113] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 437.196652] ? refcount_sub_and_test_checked+0x203/0x310 [ 437.202109] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 437.207559] ? addrconf_rs_timer+0x690/0x690 [ 437.211995] ndisc_alloc_skb+0x144/0x340 [ 437.216061] ndisc_send_rs+0x331/0x6e0 [ 437.219959] addrconf_rs_timer+0x314/0x690 [ 437.224198] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 437.228459] call_timer_fn+0x272/0x920 [ 437.232346] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 437.236579] ? process_timeout+0x40/0x40 [ 437.240654] ? mark_held_locks+0xc7/0x130 [ 437.244839] ? _raw_spin_unlock_irq+0x27/0x80 [ 437.249333] ? _raw_spin_unlock_irq+0x27/0x80 [ 437.253833] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 437.258087] ? lockdep_hardirqs_on+0x296/0x5b0 [ 437.262671] ? trace_hardirqs_on+0xbd/0x310 [ 437.266993] ? kasan_check_read+0x11/0x20 [ 437.271134] ? __run_timers+0x7da/0xc70 [ 437.275135] ? trace_hardirqs_off_caller+0x310/0x310 [ 437.280291] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 437.284543] __run_timers+0x7e5/0xc70 [ 437.288357] ? timer_fixup_init+0x70/0x70 [ 437.292507] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 437.297525] ? zap_class+0x640/0x640 [ 437.301245] ? print_usage_bug+0xc0/0xc0 [ 437.305313] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 437.310511] ? find_held_lock+0x36/0x1c0 [ 437.314577] ? zap_class+0x640/0x640 [ 437.318300] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 437.323839] ? check_preemption_disabled+0x48/0x280 [ 437.328871] ? __lock_is_held+0xb5/0x140 [ 437.332939] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 437.338476] ? check_preemption_disabled+0x48/0x280 [ 437.343499] run_timer_softirq+0x52/0xb0 [ 437.347561] ? rcu_read_lock_sched_held+0x14f/0x180 [ 437.352595] __do_softirq+0x308/0xb7e [ 437.356399] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 437.360896] ? lock_downgrade+0x900/0x900 [ 437.365053] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 437.370197] ? pvclock_read_flags+0x160/0x160 [ 437.374695] ? lapic_next_event+0x5a/0x90 [ 437.378847] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 437.384389] ? kvm_clock_read+0x18/0x30 [ 437.388365] ? kvm_sched_clock_read+0x9/0x20 [ 437.392777] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 437.398340] ? check_preemption_disabled+0x48/0x280 [ 437.403379] irq_exit+0x17f/0x1c0 [ 437.406833] smp_apic_timer_interrupt+0x1cb/0x760 [ 437.411675] ? smp_reschedule_interrupt+0x109/0x650 [ 437.416693] ? smp_call_function_single_interrupt+0x650/0x650 [ 437.422582] ? interrupt_entry+0xb5/0xc0 [ 437.426646] ? trace_hardirqs_off_caller+0xbb/0x310 [ 437.431662] ? trace_hardirqs_off_caller+0xbb/0x310 [ 437.436712] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 437.441585] ? trace_hardirqs_on_caller+0x310/0x310 [ 437.446600] ? trace_hardirqs_on_caller+0x310/0x310 [ 437.451617] ? task_prio+0x50/0x50 [ 437.455169] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 437.460740] ? check_preemption_disabled+0x48/0x280 [ 437.465764] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 437.470631] apic_timer_interrupt+0xf/0x20 [ 437.474890] [ 437.477126] RIP: 0010:lock_acquire+0x268/0x520 [ 437.481716] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 437.500634] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 437.508343] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 437.515617] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 437.522898] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 437.530177] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 437.537442] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 437.544735] ? lruvec_lru_size+0x450/0x450 [ 437.548971] ? kasan_check_read+0x11/0x20 [ 437.553136] ? lock_release+0xa00/0xa00 [ 437.557124] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 437.562072] down_read_trylock+0xda/0x140 [ 437.566216] ? shrink_slab+0x207/0x8c0 [ 437.570106] ? downgrade_write+0x270/0x270 [ 437.574350] shrink_slab+0x207/0x8c0 [ 437.578062] ? shrink_active_list+0x1f00/0x1f00 [ 437.582754] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 437.588380] ? __lock_acquire+0x62f/0x4c20 [ 437.592618] ? percpu_ref_get_many+0x240/0x240 [ 437.597238] ? print_usage_bug+0xc0/0xc0 [ 437.601325] shrink_node+0x431/0x16b0 [ 437.605145] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 437.610457] ? shrink_node_memcg+0x18f0/0x18f0 [ 437.615044] ? kvm_clock_read+0x18/0x30 [ 437.619021] ? ktime_get+0x2c1/0x400 [ 437.622751] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 437.627248] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 437.632788] ? __cpuset_node_allowed+0x19b/0x660 [ 437.637575] ? mark_held_locks+0x130/0x130 [ 437.641817] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 437.647528] ? zap_class+0x640/0x640 [ 437.651250] do_try_to_free_pages+0x3e7/0x1290 [ 437.655844] ? zap_class+0x640/0x640 [ 437.659574] ? shrink_node+0x16b0/0x16b0 [ 437.663637] ? __lock_is_held+0xb5/0x140 [ 437.667712] try_to_free_pages+0x4d0/0xb90 [ 437.671956] ? do_try_to_free_pages+0x1290/0x1290 [ 437.676816] ? lock_acquire+0x1ed/0x520 [ 437.680790] ? set_page_refcounted+0x280/0x280 [ 437.685380] ? lock_release+0xa00/0xa00 [ 437.689355] ? _raw_spin_unlock_irq+0x60/0x80 [ 437.693870] ? psi_memstall_enter+0x240/0x2b0 [ 437.698376] ? psi_memstall_tick+0x230/0x230 [ 437.702799] __alloc_pages_slowpath+0xa48/0x2de0 [ 437.707586] ? warn_alloc+0x120/0x120 [ 437.711386] ? mark_held_locks+0x130/0x130 [ 437.715626] ? find_get_entry+0xaae/0x1120 [ 437.719868] ? filemap_map_pages+0x1a20/0x1a20 [ 437.724468] ? zap_class+0x640/0x640 [ 437.728201] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 437.733743] ? check_preemption_disabled+0x48/0x280 [ 437.738761] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 437.744299] ? should_fail+0x22d/0xd01 [ 437.748192] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 437.753297] ? zap_class+0x640/0x640 [ 437.757052] ? __lock_is_held+0xb5/0x140 [ 437.761141] ? mark_held_locks+0x130/0x130 [ 437.765388] ? lock_release+0xa00/0xa00 [ 437.769368] ? perf_trace_sched_process_exec+0x860/0x860 [ 437.774833] ? xa_load+0x2ba/0x460 [ 437.778375] ? lock_downgrade+0x900/0x900 [ 437.782529] ? __might_sleep+0x95/0x190 [ 437.786508] __alloc_pages_nodemask+0xad8/0xea0 [ 437.791192] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 437.796215] ? __page_cache_alloc+0x191/0x5c0 [ 437.800717] ? xa_load+0x2e1/0x460 [ 437.804259] ? xa_clear_mark+0x40/0x40 [ 437.808151] ? zap_class+0x640/0x640 [ 437.811901] ? zap_class+0x640/0x640 [ 437.815633] ? zap_class+0x640/0x640 [ 437.819349] ? __do_page_cache_readahead+0x663/0x810 [ 437.824459] ? find_held_lock+0x36/0x1c0 [ 437.828529] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 437.834089] alloc_pages_current+0x173/0x350 [ 437.838502] __page_cache_alloc+0x38c/0x5c0 [ 437.842821] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 437.847754] ? kasan_check_read+0x11/0x20 [ 437.851912] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 437.857225] ? generic_perform_write+0x6a0/0x6a0 [ 437.861981] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 437.867518] ? check_preemption_disabled+0x48/0x280 [ 437.872538] filemap_fault+0x1595/0x25f0 [ 437.876614] ? __lock_page_or_retry+0xa00/0xa00 [ 437.881300] ? mark_held_locks+0x130/0x130 [ 437.885559] ? filemap_map_pages+0xd6b/0x1a20 [ 437.890052] ? lock_downgrade+0x900/0x900 [ 437.894208] ? check_preemption_disabled+0x48/0x280 [ 437.899227] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 437.904178] ? kasan_check_read+0x11/0x20 [ 437.908326] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 437.913602] ? rcu_softirq_qs+0x20/0x20 [ 437.917606] ? filemap_map_pages+0xd92/0x1a20 [ 437.922114] ? find_get_entries_tag+0x1400/0x1400 [ 437.926977] ? debug_object_destroy+0x2b0/0x2b0 [ 437.931649] ? lock_pi_update_atomic+0x150/0x150 [ 437.936410] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 437.941970] ? lock_acquire+0x1ed/0x520 [ 437.945958] ? ext4_filemap_fault+0x7a/0xad [ 437.950302] ? lock_release+0xa00/0xa00 [ 437.954285] ? perf_trace_sched_process_exec+0x860/0x860 [ 437.959738] ? print_usage_bug+0xc0/0xc0 [ 437.963801] ? print_usage_bug+0xc0/0xc0 [ 437.967876] ? down_read+0x8d/0x120 [ 437.971505] ? ext4_filemap_fault+0x7a/0xad [ 437.975843] ? __down_interruptible+0x700/0x700 [ 437.980532] ext4_filemap_fault+0x82/0xad [ 437.984683] __do_fault+0x100/0x6b0 [ 437.988311] ? find_held_lock+0x36/0x1c0 [ 437.992376] ? pmd_devmap_trans_unstable+0x220/0x220 [ 437.997495] ? mark_held_locks+0x130/0x130 [ 438.001732] ? mark_held_locks+0x130/0x130 [ 438.005981] ? kasan_check_read+0x11/0x20 [ 438.010131] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 438.015684] __handle_mm_fault+0x3ea0/0x5be0 [ 438.020093] ? perf_trace_lock+0x7a0/0x7a0 [ 438.024339] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 438.029193] ? __switch_to_asm+0x34/0x70 [ 438.033271] ? __switch_to_asm+0x34/0x70 [ 438.037344] ? zap_class+0x640/0x640 [ 438.041055] ? zap_class+0x640/0x640 [ 438.044771] ? __x64_sys_futex+0x53e/0x6a0 [ 438.049056] ? find_held_lock+0x36/0x1c0 [ 438.053124] ? handle_mm_fault+0x42a/0xc70 [ 438.057365] ? lock_downgrade+0x900/0x900 [ 438.061514] ? check_preemption_disabled+0x48/0x280 [ 438.066537] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 438.071467] ? kasan_check_read+0x11/0x20 [ 438.075632] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 438.080908] ? rcu_softirq_qs+0x20/0x20 [ 438.084889] ? trace_hardirqs_off_caller+0x310/0x310 [ 438.090002] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 438.095561] ? sync_mm_rss+0x9a/0x1c0 [ 438.099368] handle_mm_fault+0x54f/0xc70 [ 438.103444] ? __handle_mm_fault+0x5be0/0x5be0 [ 438.108032] ? find_vma+0x34/0x190 [ 438.111604] __do_page_fault+0x5e8/0xe60 [ 438.115665] ? trace_hardirqs_off+0xb8/0x310 [ 438.120083] do_page_fault+0xf2/0x7e0 [ 438.123880] ? vmalloc_sync_all+0x30/0x30 [ 438.128031] ? error_entry+0x70/0xd0 [ 438.131743] ? trace_hardirqs_off_caller+0xbb/0x310 [ 438.136787] ? trace_hardirqs_on_caller+0xc0/0x310 [ 438.141738] ? syscall_return_slowpath+0x5e0/0x5e0 [ 438.146666] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 438.151531] ? trace_hardirqs_on_caller+0x310/0x310 [ 438.156593] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 438.162050] ? prepare_exit_to_usermode+0x291/0x3b0 [ 438.167074] ? page_fault+0x8/0x30 [ 438.170616] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 438.175462] ? page_fault+0x8/0x30 [ 438.179003] page_fault+0x1e/0x30 [ 438.182451] RIP: 0033:0x45ddf3 [ 438.185657] Code: Bad RIP value. [ 438.189044] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 438.194402] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 438.201689] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 438.208959] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 438.216242] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 438.223511] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 438.230800] warn_alloc_show_mem: 1 callbacks suppressed [ 438.230813] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 438.230815] Mem-Info: [ 438.230845] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 438.230845] active_file:17 inactive_file:17 isolated_file:0 [ 438.230845] unevictable:0 dirty:4 writeback:0 unstable:0 [ 438.230845] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 438.230845] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 438.230845] free:13550 free_pcp:124 free_cma:0 [ 438.236202] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 438.243493] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 438.245887] Call Trace: [ 438.278930] 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 [ 438.288264] [ 438.316002] lowmem_reserve[]: 0 2818 6321 6321 [ 438.318588] dump_stack+0x244/0x39d [ 438.344668] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 438.346815] ? dump_stack_print_info.cold.1+0x20/0x20 [ 438.351368] lowmem_reserve[]: 0 0 3503 3503 [ 438.354993] warn_alloc.cold.116+0xb7/0x1bd [ 438.382283] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 438.387466] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 438.391760] lowmem_reserve[]: 0 0 0 0 [ 438.396079] ? lock_downgrade+0x900/0x900 [ 438.424938] 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 [ 438.429792] ? trace_hardirqs_off+0xb8/0x310 [ 438.433590] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 438.437730] ? trace_hardirqs_off+0xb8/0x310 [ 438.451225] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 438.455621] __alloc_pages_slowpath+0x2651/0x2de0 [ 438.470333] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 438.474742] ? warn_alloc+0x120/0x120 [ 438.489453] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 438.494284] ? warn_alloc+0x120/0x120 [ 438.503093] 1360 total pagecache pages [ 438.506898] ? warn_alloc+0x120/0x120 [ 438.515464] 0 pages in swap cache [ 438.519248] ? print_usage_bug+0xc0/0xc0 [ 438.523124] Swap cache stats: add 0, delete 0, find 0/0 [ 438.526930] ? print_usage_bug+0xc0/0xc0 [ 438.530362] Free swap = 0kB [ 438.534416] ? hrtimer_start_range_ns+0xe00/0xe00 [ 438.539751] Total swap = 0kB [ 438.543816] ? print_usage_bug+0xc0/0xc0 [ 438.546821] 1965979 pages RAM [ 438.551673] ? print_usage_bug+0xc0/0xc0 [ 438.554680] 0 pages HighMem/MovableOnly [ 438.558734] ? print_usage_bug+0xc0/0xc0 [ 438.561827] 342854 pages reserved [ 438.565880] ? kvm_clock_read+0x18/0x30 [ 438.569828] 0 pages cma reserved [ 438.573899] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 438.577397] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 438.581290] ? should_fail+0x22d/0xd01 [ 438.581303] ? print_usage_bug+0xc0/0xc0 [ 438.581321] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 438.584729] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 438.590196] ? __lock_acquire+0x62f/0x4c20 [ 438.596662] syz-fuzzer cpuset=/ mems_allowed=0 [ 438.600568] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 438.633760] ? should_fail+0x22d/0xd01 [ 438.637657] ? zap_class+0x640/0x640 [ 438.641395] ? mark_held_locks+0x130/0x130 [ 438.645650] ? mark_held_locks+0x130/0x130 [ 438.649894] ? zap_class+0x640/0x640 [ 438.653609] ? mark_held_locks+0x130/0x130 [ 438.657842] ? try_to_wake_up+0x11c/0x1490 [ 438.662077] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 438.667614] ? check_preemption_disabled+0x48/0x280 [ 438.672668] ? __lock_is_held+0xb5/0x140 [ 438.676735] __alloc_pages_nodemask+0xad8/0xea0 [ 438.681409] ? zap_class+0x640/0x640 [ 438.685147] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 438.690190] ? find_held_lock+0x36/0x1c0 [ 438.694265] ? ____cache_alloc_node+0x1c7/0x1e0 [ 438.698936] ? lock_downgrade+0x900/0x900 [ 438.703108] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 438.708654] cache_grow_begin+0xa5/0x8c0 [ 438.712717] ? do_raw_spin_unlock+0xa7/0x330 [ 438.717131] fallback_alloc+0x204/0x2e0 [ 438.721121] ____cache_alloc_node+0x1c7/0x1e0 [ 438.725643] kmem_cache_alloc_node+0xe3/0x730 [ 438.730142] ? lockdep_hardirqs_on+0x296/0x5b0 [ 438.734742] __alloc_skb+0x119/0x770 [ 438.738462] ? __bpf_trace_timer_expire_entry+0x30/0x30 [ 438.743838] ? netdev_alloc_frag+0x1f0/0x1f0 [ 438.748263] ? lock_acquire+0x1ed/0x520 [ 438.752255] ? aoecmd_cfg+0x108/0x7f0 [ 438.756060] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 438.761613] ? check_preemption_disabled+0x48/0x280 [ 438.766646] ? kasan_check_read+0x11/0x20 [ 438.770807] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 438.776080] ? rcu_softirq_qs+0x20/0x20 [ 438.780061] new_skb+0x26/0x1c0 [ 438.783342] aoecmd_cfg+0x279/0x7f0 [ 438.786975] ? find_held_lock+0x36/0x1c0 [ 438.791040] ? aoecmd_ata_rsp+0x10d0/0x10d0 [ 438.795365] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 438.800904] ? check_preemption_disabled+0x48/0x280 [ 438.805934] ? __lock_is_held+0xb5/0x140 [ 438.810022] discover_timer+0x50/0x60 [ 438.813847] call_timer_fn+0x272/0x920 [ 438.817738] ? aoedev_by_aoeaddr.cold.9+0xba/0xba [ 438.822585] ? process_timeout+0x40/0x40 [ 438.826652] ? __run_timers+0x7da/0xc70 [ 438.830628] ? _raw_spin_unlock_irq+0x27/0x80 [ 438.835131] ? _raw_spin_unlock_irq+0x27/0x80 [ 438.839640] ? aoedev_by_aoeaddr.cold.9+0xba/0xba [ 438.844486] ? lockdep_hardirqs_on+0x296/0x5b0 [ 438.849071] ? trace_hardirqs_on+0xbd/0x310 [ 438.853393] ? kasan_check_read+0x11/0x20 [ 438.857546] ? __run_timers+0x7da/0xc70 [ 438.861524] ? trace_hardirqs_off_caller+0x310/0x310 [ 438.866643] ? aoedev_by_aoeaddr.cold.9+0xba/0xba [ 438.871491] __run_timers+0x7e5/0xc70 [ 438.875318] ? timer_fixup_init+0x70/0x70 [ 438.879468] ? kasan_check_read+0x11/0x20 [ 438.883615] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 438.888919] ? rcu_softirq_qs+0x20/0x20 [ 438.892915] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 438.898462] ? check_preemption_disabled+0x48/0x280 [ 438.903486] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 438.908251] ? retint_kernel+0x2d/0x2d [ 438.912141] ? trace_hardirqs_on_caller+0xc0/0x310 [ 438.917094] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 438.921853] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 438.927329] ? zap_class+0x640/0x640 [ 438.931050] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 438.936606] ? check_preemption_disabled+0x48/0x280 [ 438.941632] ? __lock_is_held+0xb5/0x140 [ 438.945697] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 438.951446] ? check_preemption_disabled+0x48/0x280 [ 438.956470] run_timer_softirq+0x52/0xb0 [ 438.960535] ? rcu_read_lock_sched_held+0x14f/0x180 [ 438.965553] __do_softirq+0x308/0xb7e [ 438.969377] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 438.973878] ? lock_downgrade+0x900/0x900 [ 438.978062] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 438.983183] ? pvclock_read_flags+0x160/0x160 [ 438.987688] ? lapic_next_event+0x5a/0x90 [ 438.991842] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 438.997384] ? kvm_clock_read+0x18/0x30 [ 439.001357] ? kvm_sched_clock_read+0x9/0x20 [ 439.005785] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 439.011330] ? check_preemption_disabled+0x48/0x280 [ 439.016359] irq_exit+0x17f/0x1c0 [ 439.019821] smp_apic_timer_interrupt+0x1cb/0x760 [ 439.024669] ? smp_reschedule_interrupt+0x109/0x650 [ 439.029687] ? smp_call_function_single_interrupt+0x650/0x650 [ 439.035572] ? interrupt_entry+0xb5/0xc0 [ 439.039636] ? trace_hardirqs_off_caller+0xbb/0x310 [ 439.044654] ? trace_hardirqs_off_caller+0xbb/0x310 [ 439.049675] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 439.054519] ? trace_hardirqs_on_caller+0x310/0x310 [ 439.059536] ? trace_hardirqs_on_caller+0x310/0x310 [ 439.064553] ? task_prio+0x50/0x50 [ 439.068096] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 439.073641] ? check_preemption_disabled+0x48/0x280 [ 439.078666] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 439.083635] apic_timer_interrupt+0xf/0x20 [ 439.087863] [ 439.090103] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 439.095034] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 439.113936] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 439.121655] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 439.128920] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 439.136190] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 439.143456] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 439.150733] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 439.158045] skb_clone+0x1bb/0x500 [ 439.161587] ? skb_split+0x11e0/0x11e0 [ 439.165479] ? preempt_notifier_register+0x200/0x200 [ 439.170579] ? __switch_to_asm+0x34/0x70 [ 439.174640] ? __switch_to_asm+0x34/0x70 [ 439.178697] ? __switch_to_asm+0x40/0x70 [ 439.182758] ? __switch_to_asm+0x34/0x70 [ 439.186828] ? __switch_to_asm+0x40/0x70 [ 439.190890] ? __switch_to_asm+0x40/0x70 [ 439.194951] ? __switch_to_asm+0x34/0x70 [ 439.199009] ? __switch_to_asm+0x34/0x70 [ 439.203096] ? __switch_to_asm+0x40/0x70 [ 439.207162] ? __switch_to_asm+0x34/0x70 [ 439.211229] bpf_clone_redirect+0xb9/0x490 [ 439.215474] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 439.220499] ? __sched_text_start+0x8/0x8 [ 439.224648] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 439.229418] ? find_held_lock+0x36/0x1c0 [ 439.233495] ? lock_acquire+0x1ed/0x520 [ 439.237487] ? bpf_test_run+0x3ee/0x7a0 [ 439.241466] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 439.247024] ? check_preemption_disabled+0x48/0x280 [ 439.252048] ? kasan_check_read+0x11/0x20 [ 439.256225] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 439.261502] ? rcu_softirq_qs+0x20/0x20 [ 439.265508] ? preempt_schedule+0x4d/0x60 [ 439.269671] ? ___preempt_schedule+0x16/0x18 [ 439.274089] ? bpf_test_run+0x271/0x7a0 [ 439.278075] ? netlink_diag_dump+0x2a0/0x2a0 [ 439.282490] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 439.288027] ? bpf_test_init.isra.10+0x70/0x100 [ 439.292735] ? bpf_prog_test_run_skb+0x762/0xd60 [ 439.297505] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 439.302355] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 439.307896] ? fput+0x130/0x1a0 [ 439.311218] ? __bpf_prog_get+0x9b/0x290 [ 439.315284] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 439.320141] ? bpf_prog_test_run+0x130/0x1a0 [ 439.324562] ? __x64_sys_bpf+0x3d8/0x520 [ 439.328624] ? bpf_prog_get+0x20/0x20 [ 439.332446] ? do_syscall_64+0x1b9/0x820 [ 439.336509] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 439.341879] ? syscall_return_slowpath+0x5e0/0x5e0 [ 439.346821] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 439.351667] ? trace_hardirqs_on_caller+0x310/0x310 [ 439.356686] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 439.361709] ? prepare_exit_to_usermode+0x291/0x3b0 [ 439.366731] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 439.371578] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 439.376969] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 439.377052] aoe: skb alloc failure [ 439.383902] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 439.383907] Call Trace: [ 439.383913] [ 439.383934] dump_stack+0x244/0x39d [ 439.383952] ? dump_stack_print_info.cold.1+0x20/0x20 [ 439.387500] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 439.396822] warn_alloc.cold.116+0xb7/0x1bd [ 439.399374] syz-executor4 cpuset=syz4 mems_allowed=0 [ 439.401544] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 439.435077] ? lock_downgrade+0x900/0x900 [ 439.439234] ? trace_hardirqs_off+0xb8/0x310 [ 439.443660] ? trace_hardirqs_off+0xb8/0x310 [ 439.448078] __alloc_pages_slowpath+0x2651/0x2de0 [ 439.452954] ? warn_alloc+0x120/0x120 [ 439.456760] ? print_usage_bug+0xc0/0xc0 [ 439.460824] ? warn_alloc+0x120/0x120 [ 439.464629] ? warn_alloc+0x120/0x120 [ 439.468432] ? print_usage_bug+0xc0/0xc0 [ 439.472498] ? print_usage_bug+0xc0/0xc0 [ 439.476564] ? __lock_acquire+0x62f/0x4c20 [ 439.480842] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 439.486399] ? should_fail+0x22d/0xd01 [ 439.490319] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 439.495437] ? __lock_acquire+0x62f/0x4c20 [ 439.499675] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 439.504776] ? __lock_acquire+0x62f/0x4c20 [ 439.509025] ? should_fail+0x22d/0xd01 [ 439.512909] ? find_held_lock+0x36/0x1c0 [ 439.516985] ? mark_held_locks+0x130/0x130 [ 439.521239] ? mark_held_locks+0x130/0x130 [ 439.525479] ? zap_class+0x640/0x640 [ 439.529197] ? zap_class+0x640/0x640 [ 439.532913] ? print_usage_bug+0xc0/0xc0 [ 439.536997] ? do_raw_spin_unlock+0xa7/0x330 [ 439.541404] ? zap_class+0x640/0x640 [ 439.545174] ? print_usage_bug+0xc0/0xc0 [ 439.549237] ? wq_watchdog_touch+0x9c/0xfe [ 439.553506] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 439.559048] ? check_preemption_disabled+0x48/0x280 [ 439.564091] ? __lock_is_held+0xb5/0x140 [ 439.568165] __alloc_pages_nodemask+0xad8/0xea0 [ 439.572850] ? zap_class+0x640/0x640 [ 439.576582] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 439.581609] ? find_held_lock+0x36/0x1c0 [ 439.585681] ? ____cache_alloc_node+0x1c7/0x1e0 [ 439.590353] ? lock_downgrade+0x900/0x900 [ 439.594521] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 439.600063] cache_grow_begin+0xa5/0x8c0 [ 439.604118] ? do_raw_spin_unlock+0xa7/0x330 [ 439.608536] fallback_alloc+0x204/0x2e0 [ 439.612515] ____cache_alloc_node+0x1c7/0x1e0 [ 439.617012] kmem_cache_alloc_node+0xe3/0x730 [ 439.621509] ? ipv6_get_ifaddr+0x42e/0x620 [ 439.625764] __alloc_skb+0x119/0x770 [ 439.629473] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 439.634753] ? netdev_alloc_frag+0x1f0/0x1f0 [ 439.639225] ? lock_downgrade+0x900/0x900 [ 439.643379] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 439.648918] ? refcount_sub_and_test_checked+0x203/0x310 [ 439.654386] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 439.659882] ? addrconf_rs_timer+0x690/0x690 [ 439.664327] ndisc_alloc_skb+0x144/0x340 [ 439.668406] ndisc_send_rs+0x331/0x6e0 [ 439.672311] addrconf_rs_timer+0x314/0x690 [ 439.676550] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 439.680797] call_timer_fn+0x272/0x920 [ 439.684684] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 439.688919] ? process_timeout+0x40/0x40 [ 439.692995] ? mark_held_locks+0xc7/0x130 [ 439.697140] ? _raw_spin_unlock_irq+0x27/0x80 [ 439.701644] ? _raw_spin_unlock_irq+0x27/0x80 [ 439.706136] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 439.710394] ? lockdep_hardirqs_on+0x296/0x5b0 [ 439.714976] ? trace_hardirqs_on+0xbd/0x310 [ 439.719314] ? kasan_check_read+0x11/0x20 [ 439.723463] ? __run_timers+0x7da/0xc70 [ 439.727440] ? trace_hardirqs_off_caller+0x310/0x310 [ 439.732546] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 439.736783] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 439.741018] __run_timers+0x7e5/0xc70 [ 439.744826] ? timer_fixup_init+0x70/0x70 [ 439.748976] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 439.753997] ? zap_class+0x640/0x640 [ 439.757721] ? print_usage_bug+0xc0/0xc0 [ 439.761787] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 439.766985] ? find_held_lock+0x36/0x1c0 [ 439.771064] ? zap_class+0x640/0x640 [ 439.774798] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 439.780338] ? check_preemption_disabled+0x48/0x280 [ 439.785366] ? __lock_is_held+0xb5/0x140 [ 439.789428] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 439.794965] ? check_preemption_disabled+0x48/0x280 [ 439.799984] run_timer_softirq+0x52/0xb0 [ 439.804062] ? rcu_read_lock_sched_held+0x14f/0x180 [ 439.809093] __do_softirq+0x308/0xb7e [ 439.812896] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 439.817411] ? lock_downgrade+0x900/0x900 [ 439.821580] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 439.826696] ? pvclock_read_flags+0x160/0x160 [ 439.831217] ? lapic_next_event+0x5a/0x90 [ 439.835368] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 439.840915] ? kvm_clock_read+0x18/0x30 [ 439.844892] ? kvm_sched_clock_read+0x9/0x20 [ 439.849307] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 439.854847] ? check_preemption_disabled+0x48/0x280 [ 439.859874] irq_exit+0x17f/0x1c0 [ 439.863330] smp_apic_timer_interrupt+0x1cb/0x760 [ 439.868190] ? smp_reschedule_interrupt+0x109/0x650 [ 439.873235] ? smp_call_function_single_interrupt+0x650/0x650 [ 439.879122] ? interrupt_entry+0xb5/0xc0 [ 439.883223] ? trace_hardirqs_off_caller+0xbb/0x310 [ 439.888239] ? trace_hardirqs_off_caller+0xbb/0x310 [ 439.893270] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 439.898128] ? trace_hardirqs_on_caller+0x310/0x310 [ 439.903199] ? trace_hardirqs_on_caller+0x310/0x310 [ 439.908214] ? task_prio+0x50/0x50 [ 439.911755] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 439.917307] ? check_preemption_disabled+0x48/0x280 [ 439.922331] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 439.927194] apic_timer_interrupt+0xf/0x20 [ 439.931423] [ 439.933660] RIP: 0010:lock_acquire+0x268/0x520 [ 439.938245] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 439.957143] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 439.964859] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 439.972163] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 439.979451] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 439.986717] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 439.993981] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 440.001282] ? lruvec_lru_size+0x450/0x450 [ 440.005534] ? kasan_check_read+0x11/0x20 [ 440.009702] ? lock_release+0xa00/0xa00 [ 440.013685] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 440.018627] down_read_trylock+0xda/0x140 [ 440.022776] ? shrink_slab+0x207/0x8c0 [ 440.026690] ? downgrade_write+0x270/0x270 [ 440.030955] shrink_slab+0x207/0x8c0 [ 440.034683] ? shrink_active_list+0x1f00/0x1f00 [ 440.039364] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 440.044994] ? __lock_acquire+0x62f/0x4c20 [ 440.049232] ? percpu_ref_get_many+0x240/0x240 [ 440.053846] ? print_usage_bug+0xc0/0xc0 [ 440.057937] shrink_node+0x431/0x16b0 [ 440.061743] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 440.067059] ? shrink_node_memcg+0x18f0/0x18f0 [ 440.071660] ? kvm_clock_read+0x18/0x30 [ 440.075640] ? ktime_get+0x2c1/0x400 [ 440.079363] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 440.083865] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 440.089408] ? __cpuset_node_allowed+0x19b/0x660 [ 440.094171] ? mark_held_locks+0x130/0x130 [ 440.098414] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 440.104134] ? zap_class+0x640/0x640 [ 440.107883] do_try_to_free_pages+0x3e7/0x1290 [ 440.112500] ? zap_class+0x640/0x640 [ 440.116249] ? shrink_node+0x16b0/0x16b0 [ 440.120314] ? __lock_is_held+0xb5/0x140 [ 440.124388] try_to_free_pages+0x4d0/0xb90 [ 440.128628] ? do_try_to_free_pages+0x1290/0x1290 [ 440.133496] ? lock_acquire+0x1ed/0x520 [ 440.137471] ? set_page_refcounted+0x280/0x280 [ 440.142074] ? lock_release+0xa00/0xa00 [ 440.146054] ? _raw_spin_unlock_irq+0x60/0x80 [ 440.150561] ? psi_memstall_enter+0x240/0x2b0 [ 440.155056] ? psi_memstall_tick+0x230/0x230 [ 440.159474] __alloc_pages_slowpath+0xa48/0x2de0 [ 440.164259] ? warn_alloc+0x120/0x120 [ 440.168061] ? mark_held_locks+0x130/0x130 [ 440.172305] ? find_get_entry+0xaae/0x1120 [ 440.176549] ? filemap_map_pages+0x1a20/0x1a20 [ 440.181138] ? zap_class+0x640/0x640 [ 440.184870] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 440.190410] ? check_preemption_disabled+0x48/0x280 [ 440.195429] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 440.200987] ? should_fail+0x22d/0xd01 [ 440.204892] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 440.209997] ? zap_class+0x640/0x640 [ 440.213737] ? __lock_is_held+0xb5/0x140 [ 440.217805] ? mark_held_locks+0x130/0x130 [ 440.222057] ? lock_release+0xa00/0xa00 [ 440.226033] ? perf_trace_sched_process_exec+0x860/0x860 [ 440.231484] ? xa_load+0x2ba/0x460 [ 440.235046] ? lock_downgrade+0x900/0x900 [ 440.239217] ? __might_sleep+0x95/0x190 [ 440.243198] __alloc_pages_nodemask+0xad8/0xea0 [ 440.247873] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 440.252893] ? __page_cache_alloc+0x191/0x5c0 [ 440.257404] ? xa_load+0x2e1/0x460 [ 440.260950] ? xa_clear_mark+0x40/0x40 [ 440.264842] ? zap_class+0x640/0x640 [ 440.268564] ? zap_class+0x640/0x640 [ 440.272280] ? zap_class+0x640/0x640 [ 440.275991] ? __do_page_cache_readahead+0x663/0x810 [ 440.281096] ? find_held_lock+0x36/0x1c0 [ 440.285165] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 440.290707] alloc_pages_current+0x173/0x350 [ 440.295117] __page_cache_alloc+0x38c/0x5c0 [ 440.299472] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 440.304413] ? kasan_check_read+0x11/0x20 [ 440.308568] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 440.313858] ? generic_perform_write+0x6a0/0x6a0 [ 440.318614] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 440.324146] ? check_preemption_disabled+0x48/0x280 [ 440.329185] filemap_fault+0x1595/0x25f0 [ 440.333257] ? __lock_page_or_retry+0xa00/0xa00 [ 440.337924] ? mark_held_locks+0x130/0x130 [ 440.342177] ? filemap_map_pages+0xd6b/0x1a20 [ 440.346688] ? lock_downgrade+0x900/0x900 [ 440.350852] ? check_preemption_disabled+0x48/0x280 [ 440.355866] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 440.360807] ? kasan_check_read+0x11/0x20 [ 440.364971] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 440.370251] ? rcu_softirq_qs+0x20/0x20 [ 440.374258] ? filemap_map_pages+0xd92/0x1a20 [ 440.378766] ? find_get_entries_tag+0x1400/0x1400 [ 440.383611] ? debug_object_destroy+0x2b0/0x2b0 [ 440.388285] ? lock_pi_update_atomic+0x150/0x150 [ 440.393043] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 440.398596] ? lock_acquire+0x1ed/0x520 [ 440.402575] ? ext4_filemap_fault+0x7a/0xad [ 440.406921] ? lock_release+0xa00/0xa00 [ 440.410920] ? perf_trace_sched_process_exec+0x860/0x860 [ 440.416379] ? print_usage_bug+0xc0/0xc0 [ 440.420446] ? print_usage_bug+0xc0/0xc0 [ 440.424538] ? down_read+0x8d/0x120 [ 440.428170] ? ext4_filemap_fault+0x7a/0xad [ 440.432500] ? __down_interruptible+0x700/0x700 [ 440.437181] ext4_filemap_fault+0x82/0xad [ 440.441343] __do_fault+0x100/0x6b0 [ 440.444985] ? find_held_lock+0x36/0x1c0 [ 440.449045] ? pmd_devmap_trans_unstable+0x220/0x220 [ 440.454146] ? mark_held_locks+0x130/0x130 [ 440.458385] ? mark_held_locks+0x130/0x130 [ 440.462620] ? kasan_check_read+0x11/0x20 [ 440.466764] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 440.472302] __handle_mm_fault+0x3ea0/0x5be0 [ 440.476705] ? perf_trace_lock+0x7a0/0x7a0 [ 440.480966] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 440.485813] ? __switch_to_asm+0x34/0x70 [ 440.489901] ? __switch_to_asm+0x34/0x70 [ 440.493976] ? zap_class+0x640/0x640 [ 440.497689] ? zap_class+0x640/0x640 [ 440.501416] ? __x64_sys_futex+0x53e/0x6a0 [ 440.505671] ? find_held_lock+0x36/0x1c0 [ 440.509747] ? handle_mm_fault+0x42a/0xc70 [ 440.513980] ? lock_downgrade+0x900/0x900 [ 440.518130] ? check_preemption_disabled+0x48/0x280 [ 440.523164] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 440.528088] ? kasan_check_read+0x11/0x20 [ 440.532240] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 440.537514] ? rcu_softirq_qs+0x20/0x20 [ 440.541490] ? trace_hardirqs_off_caller+0x310/0x310 [ 440.546614] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 440.552169] ? sync_mm_rss+0x9a/0x1c0 [ 440.555973] handle_mm_fault+0x54f/0xc70 [ 440.560038] ? __handle_mm_fault+0x5be0/0x5be0 [ 440.564621] ? find_vma+0x34/0x190 [ 440.568168] __do_page_fault+0x5e8/0xe60 [ 440.572224] ? trace_hardirqs_off+0xb8/0x310 [ 440.576771] do_page_fault+0xf2/0x7e0 [ 440.580618] ? vmalloc_sync_all+0x30/0x30 [ 440.584768] ? error_entry+0x70/0xd0 [ 440.588485] ? trace_hardirqs_off_caller+0xbb/0x310 [ 440.593496] ? trace_hardirqs_on_caller+0xc0/0x310 [ 440.598427] ? syscall_return_slowpath+0x5e0/0x5e0 [ 440.603361] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 440.608205] ? trace_hardirqs_on_caller+0x310/0x310 [ 440.613218] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 440.618674] ? prepare_exit_to_usermode+0x291/0x3b0 [ 440.623689] ? page_fault+0x8/0x30 [ 440.627249] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 440.632115] ? page_fault+0x8/0x30 [ 440.635653] page_fault+0x1e/0x30 [ 440.639105] RIP: 0033:0x45ddf3 [ 440.642325] Code: Bad RIP value. [ 440.645684] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 440.651045] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 440.658308] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 440.665571] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 440.672835] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 440.680117] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 440.687412] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 440.687418] warn_alloc_show_mem: 1 callbacks suppressed [ 440.687425] Mem-Info: [ 440.694725] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 440.700091] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 440.700091] active_file:17 inactive_file:17 isolated_file:0 [ 440.700091] unevictable:0 dirty:4 writeback:0 unstable:0 [ 440.700091] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 440.700091] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 440.700091] free:13550 free_pcp:124 free_cma:0 [ 440.702478] Call Trace: [ 440.711865] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 440.744913] [ 440.747492] 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 [ 440.775243] dump_stack+0x244/0x39d [ 440.777363] lowmem_reserve[]: 0 2818 6321 6321 [ 440.803497] ? dump_stack_print_info.cold.1+0x20/0x20 [ 440.807094] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 440.811691] warn_alloc.cold.116+0xb7/0x1bd [ 440.816846] lowmem_reserve[]: 0 0 3503 3503 [ 440.844173] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 440.848476] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 440.852792] ? lock_downgrade+0x900/0x900 [ 440.857607] lowmem_reserve[]: 0 0 0 0 [ 440.886523] ? trace_hardirqs_off+0xb8/0x310 [ 440.890668] 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 [ 440.894480] ? trace_hardirqs_off+0xb8/0x310 [ 440.898890] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 440.912460] __alloc_pages_slowpath+0x2651/0x2de0 [ 440.916862] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 440.931656] ? warn_alloc+0x120/0x120 [ 440.936438] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 440.936451] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 440.951476] ? warn_alloc+0x120/0x120 [ 440.955260] 1360 total pagecache pages [ 440.964091] ? __lock_acquire+0x62f/0x4c20 [ 440.972647] 0 pages in swap cache [ 440.976434] ? warn_alloc+0x120/0x120 [ 440.980297] Swap cache stats: add 0, delete 0, find 0/0 [ 440.984518] ? print_usage_bug+0xc0/0xc0 [ 440.987947] Free swap = 0kB [ 440.991736] ? print_usage_bug+0xc0/0xc0 [ 440.997072] Total swap = 0kB [ 441.001121] ? mark_held_locks+0x130/0x130 [ 441.004121] 1965979 pages RAM [ 441.008182] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 441.011177] 0 pages HighMem/MovableOnly [ 441.015407] ? should_fail+0x22d/0xd01 [ 441.018485] 342854 pages reserved [ 441.024017] ? zap_class+0x640/0x640 [ 441.027966] 0 pages cma reserved [ 441.031846] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 441.035362] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 441.038988] ? __lock_acquire+0x62f/0x4c20 [ 441.042425] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 441.047434] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 441.053895] syz-fuzzer cpuset=/ mems_allowed=0 [ 441.058119] ? should_fail+0x22d/0xd01 [ 441.081901] ? mark_held_locks+0x130/0x130 [ 441.086137] ? mark_held_locks+0x130/0x130 [ 441.090374] ? lock_downgrade+0x900/0x900 [ 441.094522] ? zap_class+0x640/0x640 [ 441.098252] ? zap_class+0x640/0x640 [ 441.101983] ? zap_class+0x640/0x640 [ 441.105694] ? do_raw_spin_unlock+0xa7/0x330 [ 441.110126] ? trace_hardirqs_on+0x310/0x310 [ 441.114544] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 441.120084] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 441.125655] ? check_preemption_disabled+0x48/0x280 [ 441.130701] ? __lock_is_held+0xb5/0x140 [ 441.134768] __alloc_pages_nodemask+0xad8/0xea0 [ 441.139457] ? zap_class+0x640/0x640 [ 441.143184] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 441.148266] ? find_held_lock+0x36/0x1c0 [ 441.152337] ? ____cache_alloc_node+0x1c7/0x1e0 [ 441.157006] ? lock_downgrade+0x900/0x900 [ 441.161173] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 441.166727] cache_grow_begin+0xa5/0x8c0 [ 441.170791] ? do_raw_spin_unlock+0xa7/0x330 [ 441.175239] fallback_alloc+0x204/0x2e0 [ 441.179235] ____cache_alloc_node+0x1c7/0x1e0 [ 441.183750] kmem_cache_alloc_node+0xe3/0x730 [ 441.188246] ? lockdep_hardirqs_on+0x296/0x5b0 [ 441.192849] __alloc_skb+0x119/0x770 [ 441.196565] ? __bpf_trace_timer_expire_entry+0x30/0x30 [ 441.201931] ? netdev_alloc_frag+0x1f0/0x1f0 [ 441.206359] ? vprintk_default+0x28/0x30 [ 441.210423] ? vprintk_func+0x85/0x181 [ 441.214333] ? printk+0xa7/0xcf [ 441.217613] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 441.222381] new_skb+0x26/0x1c0 [ 441.225677] aoecmd_cfg+0x279/0x7f0 [ 441.229303] ? find_held_lock+0x36/0x1c0 [ 441.233409] ? aoecmd_ata_rsp+0x10d0/0x10d0 [ 441.237756] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 441.243305] ? __lock_is_held+0xb5/0x140 [ 441.247380] discover_timer+0x50/0x60 [ 441.251189] call_timer_fn+0x272/0x920 [ 441.255075] ? aoedev_by_aoeaddr.cold.9+0xba/0xba [ 441.259916] ? process_timeout+0x40/0x40 [ 441.263982] ? __run_timers+0x7da/0xc70 [ 441.267956] ? _raw_spin_unlock_irq+0x27/0x80 [ 441.272454] ? _raw_spin_unlock_irq+0x27/0x80 [ 441.276948] ? aoedev_by_aoeaddr.cold.9+0xba/0xba [ 441.281789] ? lockdep_hardirqs_on+0x296/0x5b0 [ 441.286388] ? trace_hardirqs_on+0xbd/0x310 [ 441.290709] ? kasan_check_read+0x11/0x20 [ 441.294864] ? __run_timers+0x7da/0xc70 [ 441.298872] ? trace_hardirqs_off_caller+0x310/0x310 [ 441.303993] ? aoedev_by_aoeaddr.cold.9+0xba/0xba [ 441.308875] __run_timers+0x7e5/0xc70 [ 441.312748] ? timer_fixup_init+0x70/0x70 [ 441.316908] ? kasan_check_read+0x11/0x20 [ 441.321051] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 441.326339] ? rcu_softirq_qs+0x20/0x20 [ 441.330314] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 441.335853] ? check_preemption_disabled+0x48/0x280 [ 441.340902] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 441.345672] ? retint_kernel+0x2d/0x2d [ 441.349586] ? trace_hardirqs_on_caller+0xc0/0x310 [ 441.354514] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 441.359266] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 441.364715] ? zap_class+0x640/0x640 [ 441.368435] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 441.373971] ? check_preemption_disabled+0x48/0x280 [ 441.378995] ? __lock_is_held+0xb5/0x140 [ 441.383056] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 441.388625] ? check_preemption_disabled+0x48/0x280 [ 441.393676] run_timer_softirq+0x52/0xb0 [ 441.397749] ? rcu_read_lock_sched_held+0x14f/0x180 [ 441.402802] __do_softirq+0x308/0xb7e [ 441.406599] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 441.411085] ? lock_downgrade+0x900/0x900 [ 441.415260] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 441.420364] ? pvclock_read_flags+0x160/0x160 [ 441.424854] ? lapic_next_event+0x5a/0x90 [ 441.429027] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 441.434562] ? kvm_clock_read+0x18/0x30 [ 441.438560] ? kvm_sched_clock_read+0x9/0x20 [ 441.442968] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 441.448500] ? check_preemption_disabled+0x48/0x280 [ 441.453522] irq_exit+0x17f/0x1c0 [ 441.456987] smp_apic_timer_interrupt+0x1cb/0x760 [ 441.461824] ? smp_reschedule_interrupt+0x109/0x650 [ 441.466851] ? smp_call_function_single_interrupt+0x650/0x650 [ 441.472725] ? interrupt_entry+0xb5/0xc0 [ 441.476779] ? trace_hardirqs_off_caller+0xbb/0x310 [ 441.481819] ? trace_hardirqs_off_caller+0xbb/0x310 [ 441.486845] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 441.491719] ? trace_hardirqs_on_caller+0x310/0x310 [ 441.496774] ? trace_hardirqs_on_caller+0x310/0x310 [ 441.501802] ? task_prio+0x50/0x50 [ 441.505365] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 441.510899] ? check_preemption_disabled+0x48/0x280 [ 441.515966] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 441.520874] apic_timer_interrupt+0xf/0x20 [ 441.525100] [ 441.527345] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 441.532273] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 441.551181] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 441.558899] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 441.566171] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 441.573443] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 441.580706] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 441.587971] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 441.595289] skb_clone+0x1bb/0x500 [ 441.598832] ? skb_split+0x11e0/0x11e0 [ 441.602723] ? preempt_notifier_register+0x200/0x200 [ 441.607846] ? __switch_to_asm+0x34/0x70 [ 441.611898] ? __switch_to_asm+0x34/0x70 [ 441.615971] ? __switch_to_asm+0x40/0x70 [ 441.620069] ? __switch_to_asm+0x34/0x70 [ 441.624121] ? __switch_to_asm+0x40/0x70 [ 441.628197] ? __switch_to_asm+0x40/0x70 [ 441.632293] ? __switch_to_asm+0x34/0x70 [ 441.636365] ? __switch_to_asm+0x34/0x70 [ 441.640418] ? __switch_to_asm+0x40/0x70 [ 441.644494] ? __switch_to_asm+0x34/0x70 [ 441.648558] bpf_clone_redirect+0xb9/0x490 [ 441.652799] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 441.657844] ? __sched_text_start+0x8/0x8 [ 441.661987] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 441.666761] ? find_held_lock+0x36/0x1c0 [ 441.670839] ? lock_acquire+0x1ed/0x520 [ 441.674812] ? bpf_test_run+0x3ee/0x7a0 [ 441.678782] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 441.684320] ? check_preemption_disabled+0x48/0x280 [ 441.689341] ? kasan_check_read+0x11/0x20 [ 441.693489] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 441.698761] ? rcu_softirq_qs+0x20/0x20 [ 441.702745] ? preempt_schedule+0x4d/0x60 [ 441.706887] ? ___preempt_schedule+0x16/0x18 [ 441.711300] ? bpf_test_run+0x271/0x7a0 [ 441.715286] ? netlink_diag_dump+0x2a0/0x2a0 [ 441.719698] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 441.725237] ? bpf_test_init.isra.10+0x70/0x100 [ 441.729926] ? bpf_prog_test_run_skb+0x762/0xd60 [ 441.734721] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 441.739576] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 441.745112] ? fput+0x130/0x1a0 [ 441.748395] ? __bpf_prog_get+0x9b/0x290 [ 441.752466] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 441.757337] ? bpf_prog_test_run+0x130/0x1a0 [ 441.761751] ? __x64_sys_bpf+0x3d8/0x520 [ 441.765847] ? bpf_prog_get+0x20/0x20 [ 441.769710] ? do_syscall_64+0x1b9/0x820 [ 441.773772] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 441.779145] ? syscall_return_slowpath+0x5e0/0x5e0 [ 441.784076] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 441.788916] ? trace_hardirqs_on_caller+0x310/0x310 [ 441.793956] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 441.798970] ? prepare_exit_to_usermode+0x291/0x3b0 [ 441.803990] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 441.808837] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 441.814270] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 441.814369] aoe: skb alloc failure [ 441.821238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 441.821243] Call Trace: [ 441.821249] [ 441.821266] dump_stack+0x244/0x39d [ 441.821288] ? dump_stack_print_info.cold.1+0x20/0x20 [ 441.824849] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 441.834179] warn_alloc.cold.116+0xb7/0x1bd [ 441.836753] syz-executor4 cpuset=syz4 mems_allowed=0 [ 441.838968] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 441.872440] ? lock_downgrade+0x900/0x900 [ 441.876607] ? trace_hardirqs_off+0xb8/0x310 [ 441.881019] ? trace_hardirqs_off+0xb8/0x310 [ 441.885462] __alloc_pages_slowpath+0x2651/0x2de0 [ 441.890389] ? warn_alloc+0x120/0x120 [ 441.894195] ? print_usage_bug+0xc0/0xc0 [ 441.898260] ? warn_alloc+0x120/0x120 [ 441.902063] ? warn_alloc+0x120/0x120 [ 441.905882] ? print_usage_bug+0xc0/0xc0 [ 441.909955] ? kvm_clock_read+0x18/0x30 [ 441.913946] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 441.918975] ? print_usage_bug+0xc0/0xc0 [ 441.923038] ? __lock_acquire+0x62f/0x4c20 [ 441.927281] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 441.932825] ? should_fail+0x22d/0xd01 [ 441.936718] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 441.942002] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 441.947115] ? __lock_acquire+0x62f/0x4c20 [ 441.951359] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 441.956462] ? __lock_acquire+0x62f/0x4c20 [ 441.960701] ? should_fail+0x22d/0xd01 [ 441.964617] ? rcu_irq_exit+0x1a2/0x390 [ 441.968606] ? mark_held_locks+0x130/0x130 [ 441.972845] ? mark_held_locks+0x130/0x130 [ 441.977086] ? mark_held_locks+0xc7/0x130 [ 441.981237] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 441.986269] ? zap_class+0x640/0x640 [ 441.989986] ? print_usage_bug+0xc0/0xc0 [ 441.994054] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 441.999596] ? check_preemption_disabled+0x48/0x280 [ 442.004619] ? __lock_is_held+0xb5/0x140 [ 442.008709] __alloc_pages_nodemask+0xad8/0xea0 [ 442.013390] ? zap_class+0x640/0x640 [ 442.017108] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 442.022135] ? find_held_lock+0x36/0x1c0 [ 442.026235] ? ____cache_alloc_node+0x1c7/0x1e0 [ 442.030957] ? lock_downgrade+0x900/0x900 [ 442.035129] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 442.040679] cache_grow_begin+0xa5/0x8c0 [ 442.044764] ? do_raw_spin_unlock+0xa7/0x330 [ 442.049188] fallback_alloc+0x204/0x2e0 [ 442.053191] ____cache_alloc_node+0x1c7/0x1e0 [ 442.057693] kmem_cache_alloc_node+0xe3/0x730 [ 442.062205] ? ipv6_get_ifaddr+0x42e/0x620 [ 442.066472] __alloc_skb+0x119/0x770 [ 442.070216] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 442.075505] ? netdev_alloc_frag+0x1f0/0x1f0 [ 442.079917] ? lock_downgrade+0x900/0x900 [ 442.084078] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 442.089615] ? refcount_sub_and_test_checked+0x203/0x310 [ 442.095069] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 442.100520] ? addrconf_rs_timer+0x690/0x690 [ 442.104973] ndisc_alloc_skb+0x144/0x340 [ 442.109044] ndisc_send_rs+0x331/0x6e0 [ 442.112944] addrconf_rs_timer+0x314/0x690 [ 442.117194] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 442.121441] call_timer_fn+0x272/0x920 [ 442.125330] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 442.129567] ? process_timeout+0x40/0x40 [ 442.133645] ? mark_held_locks+0xc7/0x130 [ 442.137826] ? _raw_spin_unlock_irq+0x27/0x80 [ 442.142343] ? _raw_spin_unlock_irq+0x27/0x80 [ 442.146880] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 442.151111] ? lockdep_hardirqs_on+0x296/0x5b0 [ 442.155694] ? trace_hardirqs_on+0xbd/0x310 [ 442.160016] ? kasan_check_read+0x11/0x20 [ 442.164168] ? __run_timers+0x7da/0xc70 [ 442.168143] ? trace_hardirqs_off_caller+0x310/0x310 [ 442.173260] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 442.177495] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 442.181725] __run_timers+0x7e5/0xc70 [ 442.185536] ? timer_fixup_init+0x70/0x70 [ 442.189687] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 442.194706] ? zap_class+0x640/0x640 [ 442.198426] ? print_usage_bug+0xc0/0xc0 [ 442.202491] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 442.207685] ? find_held_lock+0x36/0x1c0 [ 442.211748] ? zap_class+0x640/0x640 [ 442.215486] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 442.221043] ? check_preemption_disabled+0x48/0x280 [ 442.226067] ? __lock_is_held+0xb5/0x140 [ 442.230162] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 442.235712] ? check_preemption_disabled+0x48/0x280 [ 442.240729] run_timer_softirq+0x52/0xb0 [ 442.244789] ? rcu_read_lock_sched_held+0x14f/0x180 [ 442.249805] __do_softirq+0x308/0xb7e [ 442.253611] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 442.258104] ? lock_downgrade+0x900/0x900 [ 442.262254] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 442.267371] ? pvclock_read_flags+0x160/0x160 [ 442.271867] ? lapic_next_event+0x5a/0x90 [ 442.276021] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 442.281581] ? kvm_clock_read+0x18/0x30 [ 442.285555] ? kvm_sched_clock_read+0x9/0x20 [ 442.289968] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 442.295509] ? check_preemption_disabled+0x48/0x280 [ 442.300534] irq_exit+0x17f/0x1c0 [ 442.303994] smp_apic_timer_interrupt+0x1cb/0x760 [ 442.308836] ? smp_reschedule_interrupt+0x109/0x650 [ 442.313852] ? smp_call_function_single_interrupt+0x650/0x650 [ 442.319747] ? interrupt_entry+0xb5/0xc0 [ 442.323825] ? trace_hardirqs_off_caller+0xbb/0x310 [ 442.328858] ? trace_hardirqs_off_caller+0xbb/0x310 [ 442.333923] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 442.338772] ? trace_hardirqs_on_caller+0x310/0x310 [ 442.343811] ? trace_hardirqs_on_caller+0x310/0x310 [ 442.348844] ? task_prio+0x50/0x50 [ 442.352390] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 442.357935] ? check_preemption_disabled+0x48/0x280 [ 442.362971] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 442.367843] apic_timer_interrupt+0xf/0x20 [ 442.372072] [ 442.374315] RIP: 0010:lock_acquire+0x268/0x520 [ 442.378907] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 442.397812] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 442.405520] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 442.412787] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 442.420055] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 442.427326] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 442.434592] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 442.441883] ? lruvec_lru_size+0x450/0x450 [ 442.446119] ? kasan_check_read+0x11/0x20 [ 442.450274] ? lock_release+0xa00/0xa00 [ 442.454253] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 442.459203] down_read_trylock+0xda/0x140 [ 442.463352] ? shrink_slab+0x207/0x8c0 [ 442.467238] ? downgrade_write+0x270/0x270 [ 442.471481] shrink_slab+0x207/0x8c0 [ 442.475193] ? shrink_active_list+0x1f00/0x1f00 [ 442.479868] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 442.485496] ? __lock_acquire+0x62f/0x4c20 [ 442.489763] ? percpu_ref_get_many+0x240/0x240 [ 442.494370] ? print_usage_bug+0xc0/0xc0 [ 442.498433] shrink_node+0x431/0x16b0 [ 442.502251] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 442.507552] ? shrink_node_memcg+0x18f0/0x18f0 [ 442.512166] ? kvm_clock_read+0x18/0x30 [ 442.516139] ? ktime_get+0x2c1/0x400 [ 442.519861] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 442.524358] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 442.529943] ? __cpuset_node_allowed+0x19b/0x660 [ 442.534710] ? mark_held_locks+0x130/0x130 [ 442.538948] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 442.544654] ? zap_class+0x640/0x640 [ 442.548399] do_try_to_free_pages+0x3e7/0x1290 [ 442.552975] ? zap_class+0x640/0x640 [ 442.556697] ? shrink_node+0x16b0/0x16b0 [ 442.560760] ? __lock_is_held+0xb5/0x140 [ 442.564828] try_to_free_pages+0x4d0/0xb90 [ 442.569060] ? do_try_to_free_pages+0x1290/0x1290 [ 442.573909] ? lock_acquire+0x1ed/0x520 [ 442.577885] ? set_page_refcounted+0x280/0x280 [ 442.582468] ? lock_release+0xa00/0xa00 [ 442.586436] ? _raw_spin_unlock_irq+0x60/0x80 [ 442.590932] ? psi_memstall_enter+0x240/0x2b0 [ 442.595427] ? psi_memstall_tick+0x230/0x230 [ 442.599839] __alloc_pages_slowpath+0xa48/0x2de0 [ 442.604619] ? warn_alloc+0x120/0x120 [ 442.608418] ? mark_held_locks+0x130/0x130 [ 442.612684] ? find_get_entry+0xaae/0x1120 [ 442.616947] ? filemap_map_pages+0x1a20/0x1a20 [ 442.621530] ? zap_class+0x640/0x640 [ 442.625249] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 442.630791] ? check_preemption_disabled+0x48/0x280 [ 442.635804] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 442.641352] ? should_fail+0x22d/0xd01 [ 442.645244] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 442.650346] ? zap_class+0x640/0x640 [ 442.654080] ? __lock_is_held+0xb5/0x140 [ 442.658189] ? mark_held_locks+0x130/0x130 [ 442.662428] ? lock_release+0xa00/0xa00 [ 442.666399] ? perf_trace_sched_process_exec+0x860/0x860 [ 442.671862] ? xa_load+0x2ba/0x460 [ 442.675400] ? lock_downgrade+0x900/0x900 [ 442.679550] ? __might_sleep+0x95/0x190 [ 442.683524] __alloc_pages_nodemask+0xad8/0xea0 [ 442.688195] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 442.693207] ? __page_cache_alloc+0x191/0x5c0 [ 442.697726] ? xa_load+0x2e1/0x460 [ 442.701280] ? xa_clear_mark+0x40/0x40 [ 442.705189] ? zap_class+0x640/0x640 [ 442.708906] ? zap_class+0x640/0x640 [ 442.712664] ? zap_class+0x640/0x640 [ 442.716373] ? __do_page_cache_readahead+0x663/0x810 [ 442.721478] ? find_held_lock+0x36/0x1c0 [ 442.725546] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 442.731095] alloc_pages_current+0x173/0x350 [ 442.735525] __page_cache_alloc+0x38c/0x5c0 [ 442.739862] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 442.744793] ? kasan_check_read+0x11/0x20 [ 442.748955] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 442.754230] ? generic_perform_write+0x6a0/0x6a0 [ 442.758984] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 442.764557] ? check_preemption_disabled+0x48/0x280 [ 442.769581] filemap_fault+0x1595/0x25f0 [ 442.773655] ? __lock_page_or_retry+0xa00/0xa00 [ 442.778337] ? mark_held_locks+0x130/0x130 [ 442.782576] ? filemap_map_pages+0xd6b/0x1a20 [ 442.787068] ? lock_downgrade+0x900/0x900 [ 442.791218] ? check_preemption_disabled+0x48/0x280 [ 442.796232] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 442.801168] ? kasan_check_read+0x11/0x20 [ 442.805316] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 442.810592] ? rcu_softirq_qs+0x20/0x20 [ 442.814591] ? filemap_map_pages+0xd92/0x1a20 [ 442.819096] ? find_get_entries_tag+0x1400/0x1400 [ 442.823983] ? debug_object_destroy+0x2b0/0x2b0 [ 442.828672] ? lock_pi_update_atomic+0x150/0x150 [ 442.833439] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 442.838991] ? lock_acquire+0x1ed/0x520 [ 442.842976] ? ext4_filemap_fault+0x7a/0xad [ 442.847305] ? lock_release+0xa00/0xa00 [ 442.851280] ? perf_trace_sched_process_exec+0x860/0x860 [ 442.856739] ? print_usage_bug+0xc0/0xc0 [ 442.860804] ? print_usage_bug+0xc0/0xc0 [ 442.864876] ? down_read+0x8d/0x120 [ 442.868510] ? ext4_filemap_fault+0x7a/0xad [ 442.872847] ? __down_interruptible+0x700/0x700 [ 442.877523] ext4_filemap_fault+0x82/0xad [ 442.881669] __do_fault+0x100/0x6b0 [ 442.885288] ? find_held_lock+0x36/0x1c0 [ 442.889347] ? pmd_devmap_trans_unstable+0x220/0x220 [ 442.894450] ? mark_held_locks+0x130/0x130 [ 442.898682] ? mark_held_locks+0x130/0x130 [ 442.902941] ? kasan_check_read+0x11/0x20 [ 442.907083] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 442.912638] __handle_mm_fault+0x3ea0/0x5be0 [ 442.917064] ? perf_trace_lock+0x7a0/0x7a0 [ 442.921310] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 442.926165] ? __switch_to_asm+0x34/0x70 [ 442.930238] ? __switch_to_asm+0x34/0x70 [ 442.934308] ? zap_class+0x640/0x640 [ 442.938023] ? zap_class+0x640/0x640 [ 442.941735] ? __x64_sys_futex+0x53e/0x6a0 [ 442.945982] ? find_held_lock+0x36/0x1c0 [ 442.950224] ? handle_mm_fault+0x42a/0xc70 [ 442.954466] ? lock_downgrade+0x900/0x900 [ 442.958615] ? check_preemption_disabled+0x48/0x280 [ 442.963637] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 442.968569] ? kasan_check_read+0x11/0x20 [ 442.972733] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 442.978010] ? rcu_softirq_qs+0x20/0x20 [ 442.981991] ? trace_hardirqs_off_caller+0x310/0x310 [ 442.987102] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 442.992644] ? sync_mm_rss+0x9a/0x1c0 [ 442.996462] handle_mm_fault+0x54f/0xc70 [ 443.000528] ? __handle_mm_fault+0x5be0/0x5be0 [ 443.005117] ? find_vma+0x34/0x190 [ 443.008665] __do_page_fault+0x5e8/0xe60 [ 443.012732] ? trace_hardirqs_off+0xb8/0x310 [ 443.017171] do_page_fault+0xf2/0x7e0 [ 443.020975] ? vmalloc_sync_all+0x30/0x30 [ 443.025140] ? error_entry+0x70/0xd0 [ 443.028877] ? trace_hardirqs_off_caller+0xbb/0x310 [ 443.033892] ? trace_hardirqs_on_caller+0xc0/0x310 [ 443.038823] ? syscall_return_slowpath+0x5e0/0x5e0 [ 443.043750] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 443.048613] ? trace_hardirqs_on_caller+0x310/0x310 [ 443.053646] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 443.059103] ? prepare_exit_to_usermode+0x291/0x3b0 [ 443.064117] ? page_fault+0x8/0x30 [ 443.067674] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 443.072518] ? page_fault+0x8/0x30 [ 443.076074] page_fault+0x1e/0x30 [ 443.080004] RIP: 0033:0x45ddf3 [ 443.083209] Code: Bad RIP value. [ 443.086568] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 443.091945] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 443.099227] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 443.106491] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 443.113756] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 443.121019] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 443.128301] warn_alloc_show_mem: 1 callbacks suppressed [ 443.128313] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 443.128314] Mem-Info: [ 443.128343] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 443.128343] active_file:17 inactive_file:17 isolated_file:0 [ 443.128343] unevictable:0 dirty:4 writeback:0 unstable:0 [ 443.128343] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 443.128343] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 443.128343] free:13550 free_pcp:124 free_cma:0 [ 443.133682] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 443.140955] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 443.143348] Call Trace: [ 443.176379] 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 [ 443.185720] [ 443.213454] lowmem_reserve[]: 0 2818 6321 6321 [ 443.216047] dump_stack+0x244/0x39d [ 443.242118] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 443.244259] ? dump_stack_print_info.cold.1+0x20/0x20 [ 443.248811] lowmem_reserve[]: 0 0 3503 3503 [ 443.252437] warn_alloc.cold.116+0xb7/0x1bd [ 443.279731] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 443.284908] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 443.289200] lowmem_reserve[]: 0 0 0 0 [ 443.293530] ? lock_downgrade+0x900/0x900 [ 443.322384] 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 [ 443.327251] ? trace_hardirqs_off+0xb8/0x310 [ 443.331037] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 443.335177] ? trace_hardirqs_off+0xb8/0x310 [ 443.348688] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 443.353116] __alloc_pages_slowpath+0x2651/0x2de0 [ 443.367870] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 443.372288] ? warn_alloc+0x120/0x120 [ 443.386983] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 443.391860] ? warn_alloc+0x120/0x120 [ 443.400666] 1360 total pagecache pages [ 443.404457] ? __lock_acquire+0x62f/0x4c20 [ 443.413026] 0 pages in swap cache [ 443.416803] ? warn_alloc+0x120/0x120 [ 443.420685] Swap cache stats: add 0, delete 0, find 0/0 [ 443.424901] ? print_usage_bug+0xc0/0xc0 [ 443.428327] Free swap = 0kB [ 443.432115] ? print_usage_bug+0xc0/0xc0 [ 443.437467] Total swap = 0kB [ 443.441514] ? mark_held_locks+0x130/0x130 [ 443.444512] 1965979 pages RAM [ 443.448564] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 443.451552] 0 pages HighMem/MovableOnly [ 443.455795] ? should_fail+0x22d/0xd01 [ 443.458867] 342854 pages reserved [ 443.464403] ? zap_class+0x640/0x640 [ 443.468351] 0 pages cma reserved [ 443.472251] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 443.475751] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 443.479371] ? __lock_acquire+0x62f/0x4c20 [ 443.482872] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 443.487859] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 443.494338] syz-fuzzer cpuset=/ mems_allowed=0 [ 443.498564] ? should_fail+0x22d/0xd01 [ 443.522303] ? mark_held_locks+0x130/0x130 [ 443.526537] ? mark_held_locks+0x130/0x130 [ 443.530770] ? lock_downgrade+0x900/0x900 [ 443.534924] ? zap_class+0x640/0x640 [ 443.538678] ? zap_class+0x640/0x640 [ 443.542419] ? zap_class+0x640/0x640 [ 443.546134] ? do_raw_spin_unlock+0xa7/0x330 [ 443.550547] ? trace_hardirqs_on+0x310/0x310 [ 443.554954] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 443.560490] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 443.566027] ? check_preemption_disabled+0x48/0x280 [ 443.571057] ? __lock_is_held+0xb5/0x140 [ 443.575122] __alloc_pages_nodemask+0xad8/0xea0 [ 443.579789] ? zap_class+0x640/0x640 [ 443.583541] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 443.588571] ? find_held_lock+0x36/0x1c0 [ 443.592665] ? ____cache_alloc_node+0x1c7/0x1e0 [ 443.597350] ? lock_downgrade+0x900/0x900 [ 443.601553] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 443.607094] cache_grow_begin+0xa5/0x8c0 [ 443.611151] ? do_raw_spin_unlock+0xa7/0x330 [ 443.615592] fallback_alloc+0x204/0x2e0 [ 443.619576] ____cache_alloc_node+0x1c7/0x1e0 [ 443.624085] kmem_cache_alloc_node+0xe3/0x730 [ 443.628579] ? lockdep_hardirqs_on+0x296/0x5b0 [ 443.633173] __alloc_skb+0x119/0x770 [ 443.636884] ? __bpf_trace_timer_expire_entry+0x30/0x30 [ 443.642267] ? netdev_alloc_frag+0x1f0/0x1f0 [ 443.646731] ? vprintk_default+0x28/0x30 [ 443.650830] ? vprintk_func+0x85/0x181 [ 443.654732] ? printk+0xa7/0xcf [ 443.658008] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 443.662792] new_skb+0x26/0x1c0 [ 443.666069] aoecmd_cfg+0x279/0x7f0 [ 443.669693] ? find_held_lock+0x36/0x1c0 [ 443.673753] ? aoecmd_ata_rsp+0x10d0/0x10d0 [ 443.678079] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 443.683669] ? __lock_is_held+0xb5/0x140 [ 443.687756] discover_timer+0x50/0x60 [ 443.691559] call_timer_fn+0x272/0x920 [ 443.695450] ? aoedev_by_aoeaddr.cold.9+0xba/0xba [ 443.700292] ? process_timeout+0x40/0x40 [ 443.704376] ? __run_timers+0x7da/0xc70 [ 443.708367] ? _raw_spin_unlock_irq+0x27/0x80 [ 443.712867] ? _raw_spin_unlock_irq+0x27/0x80 [ 443.717384] ? aoedev_by_aoeaddr.cold.9+0xba/0xba [ 443.722222] ? lockdep_hardirqs_on+0x296/0x5b0 [ 443.726803] ? trace_hardirqs_on+0xbd/0x310 [ 443.731125] ? kasan_check_read+0x11/0x20 [ 443.735283] ? __run_timers+0x7da/0xc70 [ 443.739260] ? trace_hardirqs_off_caller+0x310/0x310 [ 443.744379] ? aoedev_by_aoeaddr.cold.9+0xba/0xba [ 443.749238] __run_timers+0x7e5/0xc70 [ 443.753058] ? timer_fixup_init+0x70/0x70 [ 443.757215] ? kasan_check_read+0x11/0x20 [ 443.761357] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 443.766630] ? rcu_softirq_qs+0x20/0x20 [ 443.770602] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 443.776136] ? check_preemption_disabled+0x48/0x280 [ 443.781170] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 443.785924] ? retint_kernel+0x2d/0x2d [ 443.789844] ? trace_hardirqs_on_caller+0xc0/0x310 [ 443.794770] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 443.799523] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 443.804976] ? zap_class+0x640/0x640 [ 443.808689] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 443.814222] ? check_preemption_disabled+0x48/0x280 [ 443.819241] ? __lock_is_held+0xb5/0x140 [ 443.823297] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 443.828829] ? check_preemption_disabled+0x48/0x280 [ 443.833847] run_timer_softirq+0x52/0xb0 [ 443.837902] ? rcu_read_lock_sched_held+0x14f/0x180 [ 443.842943] __do_softirq+0x308/0xb7e [ 443.846745] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 443.851236] ? lock_downgrade+0x900/0x900 [ 443.855387] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 443.860507] ? pvclock_read_flags+0x160/0x160 [ 443.865003] ? lapic_next_event+0x5a/0x90 [ 443.869147] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 443.874689] ? kvm_clock_read+0x18/0x30 [ 443.878682] ? kvm_sched_clock_read+0x9/0x20 [ 443.883088] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 443.888620] ? check_preemption_disabled+0x48/0x280 [ 443.893660] irq_exit+0x17f/0x1c0 [ 443.897112] smp_apic_timer_interrupt+0x1cb/0x760 [ 443.901950] ? smp_reschedule_interrupt+0x109/0x650 [ 443.906983] ? smp_call_function_single_interrupt+0x650/0x650 [ 443.912872] ? interrupt_entry+0xb5/0xc0 [ 443.916929] ? trace_hardirqs_off_caller+0xbb/0x310 [ 443.921942] ? trace_hardirqs_off_caller+0xbb/0x310 [ 443.926957] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 443.931848] ? trace_hardirqs_on_caller+0x310/0x310 [ 443.936860] ? trace_hardirqs_on_caller+0x310/0x310 [ 443.941883] ? task_prio+0x50/0x50 [ 443.945486] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 443.951056] ? check_preemption_disabled+0x48/0x280 [ 443.956077] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 443.960922] apic_timer_interrupt+0xf/0x20 [ 443.965147] [ 443.967400] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 443.972337] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 443.991278] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 443.998981] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 444.006242] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 444.013508] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 444.020783] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 444.028059] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 444.035359] skb_clone+0x1bb/0x500 [ 444.038995] ? skb_split+0x11e0/0x11e0 [ 444.042887] ? preempt_notifier_register+0x200/0x200 [ 444.047981] ? __switch_to_asm+0x34/0x70 [ 444.052038] ? __switch_to_asm+0x34/0x70 [ 444.056097] ? __switch_to_asm+0x40/0x70 [ 444.060163] ? __switch_to_asm+0x34/0x70 [ 444.064220] ? __switch_to_asm+0x40/0x70 [ 444.068277] ? __switch_to_asm+0x40/0x70 [ 444.072336] ? __switch_to_asm+0x34/0x70 [ 444.076392] ? __switch_to_asm+0x34/0x70 [ 444.080456] ? __switch_to_asm+0x40/0x70 [ 444.084514] ? __switch_to_asm+0x34/0x70 [ 444.088582] bpf_clone_redirect+0xb9/0x490 [ 444.092828] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 444.097850] ? __sched_text_start+0x8/0x8 [ 444.101996] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 444.106778] ? find_held_lock+0x36/0x1c0 [ 444.110862] ? lock_acquire+0x1ed/0x520 [ 444.114839] ? bpf_test_run+0x3ee/0x7a0 [ 444.118817] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 444.124367] ? check_preemption_disabled+0x48/0x280 [ 444.129403] ? kasan_check_read+0x11/0x20 [ 444.133553] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 444.138846] ? rcu_softirq_qs+0x20/0x20 [ 444.142839] ? preempt_schedule+0x4d/0x60 [ 444.146991] ? ___preempt_schedule+0x16/0x18 [ 444.151412] ? bpf_test_run+0x271/0x7a0 [ 444.155409] ? netlink_diag_dump+0x2a0/0x2a0 [ 444.159876] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 444.165417] ? bpf_test_init.isra.10+0x70/0x100 [ 444.170096] ? bpf_prog_test_run_skb+0x762/0xd60 [ 444.174876] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 444.179725] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 444.185267] ? fput+0x130/0x1a0 [ 444.188553] ? __bpf_prog_get+0x9b/0x290 [ 444.192618] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 444.197468] ? bpf_prog_test_run+0x130/0x1a0 [ 444.201880] ? __x64_sys_bpf+0x3d8/0x520 [ 444.205939] ? bpf_prog_get+0x20/0x20 [ 444.209759] ? do_syscall_64+0x1b9/0x820 [ 444.213816] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 444.219198] ? syscall_return_slowpath+0x5e0/0x5e0 [ 444.224128] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 444.228979] ? trace_hardirqs_on_caller+0x310/0x310 [ 444.233994] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 444.239028] ? prepare_exit_to_usermode+0x291/0x3b0 [ 444.244053] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 444.248906] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 444.254317] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 444.254444] aoe: skb alloc failure [ 444.261259] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 444.261264] Call Trace: [ 444.261271] [ 444.261287] dump_stack+0x244/0x39d [ 444.261304] ? dump_stack_print_info.cold.1+0x20/0x20 [ 444.264858] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 444.274218] warn_alloc.cold.116+0xb7/0x1bd [ 444.276797] syz-executor4 cpuset=syz4 mems_allowed=0 [ 444.278940] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 444.312430] ? lock_downgrade+0x900/0x900 [ 444.316589] ? trace_hardirqs_off+0xb8/0x310 [ 444.321007] ? trace_hardirqs_off+0xb8/0x310 [ 444.325421] __alloc_pages_slowpath+0x2651/0x2de0 [ 444.330283] ? warn_alloc+0x120/0x120 [ 444.334098] ? print_usage_bug+0xc0/0xc0 [ 444.338163] ? warn_alloc+0x120/0x120 [ 444.341963] ? warn_alloc+0x120/0x120 [ 444.345772] ? print_usage_bug+0xc0/0xc0 [ 444.349860] ? kvm_clock_read+0x18/0x30 [ 444.353829] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 444.358872] ? print_usage_bug+0xc0/0xc0 [ 444.362952] ? __lock_acquire+0x62f/0x4c20 [ 444.367207] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 444.372755] ? should_fail+0x22d/0xd01 [ 444.376651] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 444.381946] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 444.387044] ? __lock_acquire+0x62f/0x4c20 [ 444.391295] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 444.396413] ? __lock_acquire+0x62f/0x4c20 [ 444.400644] ? should_fail+0x22d/0xd01 [ 444.404524] ? rcu_irq_exit+0x1a2/0x390 [ 444.408514] ? mark_held_locks+0x130/0x130 [ 444.412799] ? mark_held_locks+0x130/0x130 [ 444.417052] ? mark_held_locks+0xc7/0x130 [ 444.421224] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 444.426240] ? zap_class+0x640/0x640 [ 444.429954] ? print_usage_bug+0xc0/0xc0 [ 444.434026] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 444.439593] ? check_preemption_disabled+0x48/0x280 [ 444.444614] ? __lock_is_held+0xb5/0x140 [ 444.448687] __alloc_pages_nodemask+0xad8/0xea0 [ 444.453349] ? zap_class+0x640/0x640 [ 444.457059] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 444.462084] ? find_held_lock+0x36/0x1c0 [ 444.466148] ? ____cache_alloc_node+0x1c7/0x1e0 [ 444.470821] ? lock_downgrade+0x900/0x900 [ 444.474997] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 444.480538] cache_grow_begin+0xa5/0x8c0 [ 444.484592] ? do_raw_spin_unlock+0xa7/0x330 [ 444.488995] fallback_alloc+0x204/0x2e0 [ 444.492969] ____cache_alloc_node+0x1c7/0x1e0 [ 444.497460] kmem_cache_alloc_node+0xe3/0x730 [ 444.501952] ? ipv6_get_ifaddr+0x42e/0x620 [ 444.506254] __alloc_skb+0x119/0x770 [ 444.509976] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 444.515253] ? netdev_alloc_frag+0x1f0/0x1f0 [ 444.519670] ? lock_downgrade+0x900/0x900 [ 444.523864] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 444.529435] ? refcount_sub_and_test_checked+0x203/0x310 [ 444.534913] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 444.540396] ? addrconf_rs_timer+0x690/0x690 [ 444.544862] ndisc_alloc_skb+0x144/0x340 [ 444.548968] ndisc_send_rs+0x331/0x6e0 [ 444.552873] addrconf_rs_timer+0x314/0x690 [ 444.557119] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 444.561356] call_timer_fn+0x272/0x920 [ 444.565236] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 444.569481] ? process_timeout+0x40/0x40 [ 444.573544] ? mark_held_locks+0xc7/0x130 [ 444.577772] ? _raw_spin_unlock_irq+0x27/0x80 [ 444.582258] ? _raw_spin_unlock_irq+0x27/0x80 [ 444.586745] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 444.590976] ? lockdep_hardirqs_on+0x296/0x5b0 [ 444.595554] ? trace_hardirqs_on+0xbd/0x310 [ 444.599868] ? kasan_check_read+0x11/0x20 [ 444.604010] ? __run_timers+0x7da/0xc70 [ 444.608009] ? trace_hardirqs_off_caller+0x310/0x310 [ 444.613109] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 444.617346] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 444.621574] __run_timers+0x7e5/0xc70 [ 444.625378] ? timer_fixup_init+0x70/0x70 [ 444.629554] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 444.634565] ? zap_class+0x640/0x640 [ 444.638276] ? print_usage_bug+0xc0/0xc0 [ 444.642332] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 444.647521] ? find_held_lock+0x36/0x1c0 [ 444.651598] ? zap_class+0x640/0x640 [ 444.655315] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 444.660845] ? check_preemption_disabled+0x48/0x280 [ 444.665862] ? __lock_is_held+0xb5/0x140 [ 444.669917] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 444.675453] ? check_preemption_disabled+0x48/0x280 [ 444.680471] run_timer_softirq+0x52/0xb0 [ 444.684530] ? rcu_read_lock_sched_held+0x14f/0x180 [ 444.689542] __do_softirq+0x308/0xb7e [ 444.693345] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 444.697897] ? lock_downgrade+0x900/0x900 [ 444.702046] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 444.707152] ? pvclock_read_flags+0x160/0x160 [ 444.711657] ? lapic_next_event+0x5a/0x90 [ 444.715806] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 444.721347] ? kvm_clock_read+0x18/0x30 [ 444.725321] ? kvm_sched_clock_read+0x9/0x20 [ 444.729735] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 444.735274] ? check_preemption_disabled+0x48/0x280 [ 444.740318] irq_exit+0x17f/0x1c0 [ 444.743773] smp_apic_timer_interrupt+0x1cb/0x760 [ 444.748614] ? smp_reschedule_interrupt+0x109/0x650 [ 444.753631] ? smp_call_function_single_interrupt+0x650/0x650 [ 444.759511] ? interrupt_entry+0xb5/0xc0 [ 444.763581] ? trace_hardirqs_off_caller+0xbb/0x310 [ 444.768598] ? trace_hardirqs_off_caller+0xbb/0x310 [ 444.773645] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 444.778523] ? trace_hardirqs_on_caller+0x310/0x310 [ 444.783538] ? trace_hardirqs_on_caller+0x310/0x310 [ 444.788558] ? task_prio+0x50/0x50 [ 444.792104] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 444.797642] ? check_preemption_disabled+0x48/0x280 [ 444.802662] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 444.807509] apic_timer_interrupt+0xf/0x20 [ 444.811744] [ 444.813997] RIP: 0010:lock_acquire+0x268/0x520 [ 444.818580] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 444.837477] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 444.845197] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 444.852461] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 444.859723] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 444.866982] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 444.874241] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 444.881531] ? lruvec_lru_size+0x450/0x450 [ 444.885767] ? kasan_check_read+0x11/0x20 [ 444.889937] ? lock_release+0xa00/0xa00 [ 444.893915] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 444.898854] down_read_trylock+0xda/0x140 [ 444.903002] ? shrink_slab+0x207/0x8c0 [ 444.906916] ? downgrade_write+0x270/0x270 [ 444.911198] shrink_slab+0x207/0x8c0 [ 444.914914] ? shrink_active_list+0x1f00/0x1f00 [ 444.919607] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 444.925291] ? __lock_acquire+0x62f/0x4c20 [ 444.929547] ? percpu_ref_get_many+0x240/0x240 [ 444.934141] ? print_usage_bug+0xc0/0xc0 [ 444.938214] shrink_node+0x431/0x16b0 [ 444.942017] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 444.947320] ? shrink_node_memcg+0x18f0/0x18f0 [ 444.952073] ? kvm_clock_read+0x18/0x30 [ 444.956051] ? ktime_get+0x2c1/0x400 [ 444.959820] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 444.964336] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 444.969878] ? __cpuset_node_allowed+0x19b/0x660 [ 444.974633] ? mark_held_locks+0x130/0x130 [ 444.978910] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 444.984626] ? zap_class+0x640/0x640 [ 444.988349] do_try_to_free_pages+0x3e7/0x1290 [ 444.992934] ? zap_class+0x640/0x640 [ 444.996664] ? shrink_node+0x16b0/0x16b0 [ 445.000727] ? __lock_is_held+0xb5/0x140 [ 445.004806] try_to_free_pages+0x4d0/0xb90 [ 445.009047] ? do_try_to_free_pages+0x1290/0x1290 [ 445.013911] ? lock_acquire+0x1ed/0x520 [ 445.017895] ? set_page_refcounted+0x280/0x280 [ 445.022485] ? lock_release+0xa00/0xa00 [ 445.026464] ? _raw_spin_unlock_irq+0x60/0x80 [ 445.030963] ? psi_memstall_enter+0x240/0x2b0 [ 445.035472] ? psi_memstall_tick+0x230/0x230 [ 445.039896] __alloc_pages_slowpath+0xa48/0x2de0 [ 445.044701] ? warn_alloc+0x120/0x120 [ 445.048515] ? mark_held_locks+0x130/0x130 [ 445.052772] ? find_get_entry+0xaae/0x1120 [ 445.057019] ? filemap_map_pages+0x1a20/0x1a20 [ 445.061602] ? zap_class+0x640/0x640 [ 445.065321] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 445.070884] ? check_preemption_disabled+0x48/0x280 [ 445.075901] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 445.081901] ? should_fail+0x22d/0xd01 [ 445.085798] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 445.090898] ? zap_class+0x640/0x640 [ 445.094638] ? __lock_is_held+0xb5/0x140 [ 445.098706] ? mark_held_locks+0x130/0x130 [ 445.102948] ? lock_release+0xa00/0xa00 [ 445.106926] ? perf_trace_sched_process_exec+0x860/0x860 [ 445.112379] ? xa_load+0x2ba/0x460 [ 445.115919] ? lock_downgrade+0x900/0x900 [ 445.120069] ? __might_sleep+0x95/0x190 [ 445.124045] __alloc_pages_nodemask+0xad8/0xea0 [ 445.128745] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 445.133772] ? __page_cache_alloc+0x191/0x5c0 [ 445.138278] ? xa_load+0x2e1/0x460 [ 445.141816] ? xa_clear_mark+0x40/0x40 [ 445.145713] ? zap_class+0x640/0x640 [ 445.149427] ? zap_class+0x640/0x640 [ 445.153131] ? zap_class+0x640/0x640 [ 445.156857] ? __do_page_cache_readahead+0x663/0x810 [ 445.161974] ? find_held_lock+0x36/0x1c0 [ 445.166034] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 445.171586] alloc_pages_current+0x173/0x350 [ 445.175997] __page_cache_alloc+0x38c/0x5c0 [ 445.180309] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 445.185335] ? kasan_check_read+0x11/0x20 [ 445.189514] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 445.194787] ? generic_perform_write+0x6a0/0x6a0 [ 445.199540] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 445.205072] ? check_preemption_disabled+0x48/0x280 [ 445.210087] filemap_fault+0x1595/0x25f0 [ 445.214155] ? __lock_page_or_retry+0xa00/0xa00 [ 445.218836] ? mark_held_locks+0x130/0x130 [ 445.223083] ? filemap_map_pages+0xd6b/0x1a20 [ 445.227591] ? lock_downgrade+0x900/0x900 [ 445.231764] ? check_preemption_disabled+0x48/0x280 [ 445.236805] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 445.241761] ? kasan_check_read+0x11/0x20 [ 445.245916] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 445.251208] ? rcu_softirq_qs+0x20/0x20 [ 445.255196] ? filemap_map_pages+0xd92/0x1a20 [ 445.259736] ? find_get_entries_tag+0x1400/0x1400 [ 445.264576] ? debug_object_destroy+0x2b0/0x2b0 [ 445.269240] ? lock_pi_update_atomic+0x150/0x150 [ 445.273987] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 445.279530] ? lock_acquire+0x1ed/0x520 [ 445.283514] ? ext4_filemap_fault+0x7a/0xad [ 445.287851] ? lock_release+0xa00/0xa00 [ 445.291823] ? perf_trace_sched_process_exec+0x860/0x860 [ 445.297277] ? print_usage_bug+0xc0/0xc0 [ 445.301346] ? print_usage_bug+0xc0/0xc0 [ 445.305409] ? down_read+0x8d/0x120 [ 445.309045] ? ext4_filemap_fault+0x7a/0xad [ 445.313362] ? __down_interruptible+0x700/0x700 [ 445.318037] ext4_filemap_fault+0x82/0xad [ 445.322187] __do_fault+0x100/0x6b0 [ 445.325830] ? find_held_lock+0x36/0x1c0 [ 445.329895] ? pmd_devmap_trans_unstable+0x220/0x220 [ 445.335005] ? mark_held_locks+0x130/0x130 [ 445.339248] ? mark_held_locks+0x130/0x130 [ 445.343488] ? kasan_check_read+0x11/0x20 [ 445.347632] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 445.353189] __handle_mm_fault+0x3ea0/0x5be0 [ 445.357593] ? perf_trace_lock+0x7a0/0x7a0 [ 445.361824] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 445.366683] ? __switch_to_asm+0x34/0x70 [ 445.370734] ? __switch_to_asm+0x34/0x70 [ 445.374798] ? zap_class+0x640/0x640 [ 445.378520] ? zap_class+0x640/0x640 [ 445.382246] ? __x64_sys_futex+0x53e/0x6a0 [ 445.386512] ? find_held_lock+0x36/0x1c0 [ 445.390576] ? handle_mm_fault+0x42a/0xc70 [ 445.394805] ? lock_downgrade+0x900/0x900 [ 445.398961] ? check_preemption_disabled+0x48/0x280 [ 445.403977] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 445.408902] ? kasan_check_read+0x11/0x20 [ 445.413062] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 445.418352] ? rcu_softirq_qs+0x20/0x20 [ 445.422324] ? trace_hardirqs_off_caller+0x310/0x310 [ 445.427422] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 445.432952] ? sync_mm_rss+0x9a/0x1c0 [ 445.436762] handle_mm_fault+0x54f/0xc70 [ 445.440828] ? __handle_mm_fault+0x5be0/0x5be0 [ 445.445402] ? find_vma+0x34/0x190 [ 445.448988] __do_page_fault+0x5e8/0xe60 [ 445.453069] ? trace_hardirqs_off+0xb8/0x310 [ 445.457480] do_page_fault+0xf2/0x7e0 [ 445.461307] ? vmalloc_sync_all+0x30/0x30 [ 445.465500] ? error_entry+0x70/0xd0 [ 445.469237] ? trace_hardirqs_off_caller+0xbb/0x310 [ 445.474244] ? trace_hardirqs_on_caller+0xc0/0x310 [ 445.479173] ? syscall_return_slowpath+0x5e0/0x5e0 [ 445.484130] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 445.488972] ? trace_hardirqs_on_caller+0x310/0x310 [ 445.493976] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 445.499421] ? prepare_exit_to_usermode+0x291/0x3b0 [ 445.504432] ? page_fault+0x8/0x30 [ 445.507969] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 445.512810] ? page_fault+0x8/0x30 [ 445.516345] page_fault+0x1e/0x30 [ 445.519806] RIP: 0033:0x45ddf3 [ 445.523018] Code: Bad RIP value. [ 445.526377] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 445.531779] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 445.539060] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 445.546324] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 445.553584] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 445.560842] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 445.568123] warn_alloc_show_mem: 1 callbacks suppressed [ 445.568135] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 445.568136] Mem-Info: [ 445.568181] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 445.568181] active_file:17 inactive_file:17 isolated_file:0 [ 445.568181] unevictable:0 dirty:4 writeback:0 unstable:0 [ 445.568181] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 445.568181] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 445.568181] free:13550 free_pcp:124 free_cma:0 [ 445.573543] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 445.580843] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 445.583239] Call Trace: [ 445.616273] 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 [ 445.625612] [ 445.653350] lowmem_reserve[]: 0 2818 6321 6321 [ 445.655931] dump_stack+0x244/0x39d [ 445.682042] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 445.684196] ? dump_stack_print_info.cold.1+0x20/0x20 [ 445.688750] lowmem_reserve[]: 0 0 3503 3503 [ 445.692373] warn_alloc.cold.116+0xb7/0x1bd [ 445.719668] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 445.724849] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 445.729152] lowmem_reserve[]: 0 0 0 0 [ 445.733502] ? lock_downgrade+0x900/0x900 [ 445.762365] 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 [ 445.767205] ? trace_hardirqs_off+0xb8/0x310 [ 445.770975] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 445.775117] ? trace_hardirqs_off+0xb8/0x310 [ 445.788630] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 445.793066] __alloc_pages_slowpath+0x2651/0x2de0 [ 445.807780] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 445.812202] ? warn_alloc+0x120/0x120 [ 445.826895] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 445.831718] ? warn_alloc+0x120/0x120 [ 445.840556] 1360 total pagecache pages [ 445.844343] ? __lock_acquire+0x62f/0x4c20 [ 445.852893] 0 pages in swap cache [ 445.856669] ? warn_alloc+0x120/0x120 [ 445.860533] Swap cache stats: add 0, delete 0, find 0/0 [ 445.864781] ? print_usage_bug+0xc0/0xc0 [ 445.868206] Free swap = 0kB [ 445.871990] ? print_usage_bug+0xc0/0xc0 [ 445.877322] Total swap = 0kB [ 445.881366] ? mark_held_locks+0x130/0x130 [ 445.884358] 1965979 pages RAM [ 445.888410] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 445.891398] 0 pages HighMem/MovableOnly [ 445.895657] ? should_fail+0x22d/0xd01 [ 445.898733] 342854 pages reserved [ 445.904260] ? zap_class+0x640/0x640 [ 445.908208] 0 pages cma reserved [ 445.912086] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 445.915600] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 445.919226] ? __lock_acquire+0x62f/0x4c20 [ 445.922685] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 445.927658] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 445.934120] syz-fuzzer cpuset=/ mems_allowed=0 [ 445.938349] ? should_fail+0x22d/0xd01 [ 445.962084] ? mark_held_locks+0x130/0x130 [ 445.966329] ? mark_held_locks+0x130/0x130 [ 445.970558] ? lock_downgrade+0x900/0x900 [ 445.974721] ? zap_class+0x640/0x640 [ 445.978439] ? zap_class+0x640/0x640 [ 445.982191] ? zap_class+0x640/0x640 [ 445.985963] ? do_raw_spin_unlock+0xa7/0x330 [ 445.990371] ? trace_hardirqs_on+0x310/0x310 [ 445.994786] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 446.000318] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 446.005850] ? check_preemption_disabled+0x48/0x280 [ 446.010870] ? __lock_is_held+0xb5/0x140 [ 446.014931] __alloc_pages_nodemask+0xad8/0xea0 [ 446.019594] ? zap_class+0x640/0x640 [ 446.023335] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 446.028358] ? find_held_lock+0x36/0x1c0 [ 446.032449] ? ____cache_alloc_node+0x1c7/0x1e0 [ 446.037112] ? lock_downgrade+0x900/0x900 [ 446.041282] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 446.046817] cache_grow_begin+0xa5/0x8c0 [ 446.050876] ? do_raw_spin_unlock+0xa7/0x330 [ 446.055285] fallback_alloc+0x204/0x2e0 [ 446.059260] ____cache_alloc_node+0x1c7/0x1e0 [ 446.063809] kmem_cache_alloc_node+0xe3/0x730 [ 446.068299] ? lockdep_hardirqs_on+0x296/0x5b0 [ 446.072886] __alloc_skb+0x119/0x770 [ 446.076594] ? __bpf_trace_timer_expire_entry+0x30/0x30 [ 446.081955] ? netdev_alloc_frag+0x1f0/0x1f0 [ 446.086364] ? vprintk_default+0x28/0x30 [ 446.090426] ? vprintk_func+0x85/0x181 [ 446.094320] ? printk+0xa7/0xcf [ 446.097594] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 446.102418] new_skb+0x26/0x1c0 [ 446.105731] aoecmd_cfg+0x279/0x7f0 [ 446.109354] ? find_held_lock+0x36/0x1c0 [ 446.113442] ? aoecmd_ata_rsp+0x10d0/0x10d0 [ 446.117775] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 446.123311] ? __lock_is_held+0xb5/0x140 [ 446.127371] discover_timer+0x50/0x60 [ 446.131166] call_timer_fn+0x272/0x920 [ 446.135089] ? aoedev_by_aoeaddr.cold.9+0xba/0xba [ 446.139919] ? process_timeout+0x40/0x40 [ 446.143987] ? __run_timers+0x7da/0xc70 [ 446.147974] ? _raw_spin_unlock_irq+0x27/0x80 [ 446.152473] ? _raw_spin_unlock_irq+0x27/0x80 [ 446.156956] ? aoedev_by_aoeaddr.cold.9+0xba/0xba [ 446.161787] ? lockdep_hardirqs_on+0x296/0x5b0 [ 446.166377] ? trace_hardirqs_on+0xbd/0x310 [ 446.170690] ? kasan_check_read+0x11/0x20 [ 446.174829] ? __run_timers+0x7da/0xc70 [ 446.178799] ? trace_hardirqs_off_caller+0x310/0x310 [ 446.183950] ? aoedev_by_aoeaddr.cold.9+0xba/0xba [ 446.188836] __run_timers+0x7e5/0xc70 [ 446.192636] ? timer_fixup_init+0x70/0x70 [ 446.196774] ? kasan_check_read+0x11/0x20 [ 446.200913] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 446.206199] ? rcu_softirq_qs+0x20/0x20 [ 446.210269] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 446.215809] ? check_preemption_disabled+0x48/0x280 [ 446.220897] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 446.225658] ? retint_kernel+0x2d/0x2d [ 446.229536] ? trace_hardirqs_on_caller+0xc0/0x310 [ 446.234459] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 446.239207] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 446.244679] ? zap_class+0x640/0x640 [ 446.248405] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 446.254003] ? check_preemption_disabled+0x48/0x280 [ 446.259051] ? __lock_is_held+0xb5/0x140 [ 446.263105] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 446.268633] ? check_preemption_disabled+0x48/0x280 [ 446.273664] run_timer_softirq+0x52/0xb0 [ 446.277723] ? rcu_read_lock_sched_held+0x14f/0x180 [ 446.282741] __do_softirq+0x308/0xb7e [ 446.286558] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 446.291049] ? lock_downgrade+0x900/0x900 [ 446.295193] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 446.300299] ? pvclock_read_flags+0x160/0x160 [ 446.304793] ? lapic_next_event+0x5a/0x90 [ 446.308968] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 446.314515] ? kvm_clock_read+0x18/0x30 [ 446.318507] ? kvm_sched_clock_read+0x9/0x20 [ 446.322916] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 446.328455] ? check_preemption_disabled+0x48/0x280 [ 446.333483] irq_exit+0x17f/0x1c0 [ 446.336938] smp_apic_timer_interrupt+0x1cb/0x760 [ 446.341779] ? smp_reschedule_interrupt+0x109/0x650 [ 446.346821] ? smp_call_function_single_interrupt+0x650/0x650 [ 446.352703] ? interrupt_entry+0xb5/0xc0 [ 446.356781] ? trace_hardirqs_off_caller+0xbb/0x310 [ 446.361795] ? trace_hardirqs_off_caller+0xbb/0x310 [ 446.366811] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 446.371659] ? trace_hardirqs_on_caller+0x310/0x310 [ 446.376674] ? trace_hardirqs_on_caller+0x310/0x310 [ 446.381689] ? task_prio+0x50/0x50 [ 446.385229] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 446.390777] ? check_preemption_disabled+0x48/0x280 [ 446.395801] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 446.400669] apic_timer_interrupt+0xf/0x20 [ 446.404909] [ 446.407166] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 446.412101] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 446.430999] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 446.438702] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 446.445982] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 446.453246] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 446.460514] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 446.467814] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 446.475117] skb_clone+0x1bb/0x500 [ 446.478663] ? skb_split+0x11e0/0x11e0 [ 446.482565] ? preempt_notifier_register+0x200/0x200 [ 446.487693] ? __switch_to_asm+0x34/0x70 [ 446.491752] ? __switch_to_asm+0x34/0x70 [ 446.495823] ? __switch_to_asm+0x40/0x70 [ 446.499884] ? __switch_to_asm+0x34/0x70 [ 446.503939] ? __switch_to_asm+0x40/0x70 [ 446.508001] ? __switch_to_asm+0x40/0x70 [ 446.512070] ? __switch_to_asm+0x34/0x70 [ 446.516142] ? __switch_to_asm+0x34/0x70 [ 446.520207] ? __switch_to_asm+0x40/0x70 [ 446.524264] ? __switch_to_asm+0x34/0x70 [ 446.528328] bpf_clone_redirect+0xb9/0x490 [ 446.532612] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 446.537643] ? __sched_text_start+0x8/0x8 [ 446.541789] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 446.546601] ? find_held_lock+0x36/0x1c0 [ 446.550684] ? lock_acquire+0x1ed/0x520 [ 446.554660] ? bpf_test_run+0x3ee/0x7a0 [ 446.558645] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 446.564182] ? check_preemption_disabled+0x48/0x280 [ 446.569218] ? kasan_check_read+0x11/0x20 [ 446.573361] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 446.578634] ? rcu_softirq_qs+0x20/0x20 [ 446.582629] ? preempt_schedule+0x4d/0x60 [ 446.586791] ? ___preempt_schedule+0x16/0x18 [ 446.591202] ? bpf_test_run+0x271/0x7a0 [ 446.595193] ? netlink_diag_dump+0x2a0/0x2a0 [ 446.599632] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 446.605174] ? bpf_test_init.isra.10+0x70/0x100 [ 446.609844] ? bpf_prog_test_run_skb+0x762/0xd60 [ 446.614605] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 446.619456] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 446.625023] ? fput+0x130/0x1a0 [ 446.628322] ? __bpf_prog_get+0x9b/0x290 [ 446.632401] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 446.637274] ? bpf_prog_test_run+0x130/0x1a0 [ 446.641678] ? __x64_sys_bpf+0x3d8/0x520 [ 446.645736] ? bpf_prog_get+0x20/0x20 [ 446.649551] ? do_syscall_64+0x1b9/0x820 [ 446.653621] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 446.658980] ? syscall_return_slowpath+0x5e0/0x5e0 [ 446.663906] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 446.668769] ? trace_hardirqs_on_caller+0x310/0x310 [ 446.673793] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 446.678815] ? prepare_exit_to_usermode+0x291/0x3b0 [ 446.683865] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 446.688714] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 446.694102] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95 [ 446.694178] aoe: skb alloc failure [ 446.701023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 446.701028] Call Trace: [ 446.701033] [ 446.701048] dump_stack+0x244/0x39d [ 446.701067] ? dump_stack_print_info.cold.1+0x20/0x20 [ 446.704613] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 446.713954] warn_alloc.cold.116+0xb7/0x1bd [ 446.716503] syz-executor4 cpuset=syz4 mems_allowed=0 [ 446.718643] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 446.752137] ? lock_downgrade+0x900/0x900 [ 446.756296] ? trace_hardirqs_off+0xb8/0x310 [ 446.760721] ? trace_hardirqs_off+0xb8/0x310 [ 446.765136] __alloc_pages_slowpath+0x2651/0x2de0 [ 446.770004] ? warn_alloc+0x120/0x120 [ 446.773801] ? print_usage_bug+0xc0/0xc0 [ 446.777863] ? warn_alloc+0x120/0x120 [ 446.781663] ? warn_alloc+0x120/0x120 [ 446.785461] ? print_usage_bug+0xc0/0xc0 [ 446.789523] ? kvm_clock_read+0x18/0x30 [ 446.793508] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 446.798551] ? print_usage_bug+0xc0/0xc0 [ 446.802628] ? __lock_acquire+0x62f/0x4c20 [ 446.806876] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 446.812443] ? should_fail+0x22d/0xd01 [ 446.816329] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 446.821605] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 446.826708] ? __lock_acquire+0x62f/0x4c20 [ 446.830961] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 446.836055] ? __lock_acquire+0x62f/0x4c20 [ 446.840282] ? should_fail+0x22d/0xd01 [ 446.844168] ? rcu_irq_exit+0x1a2/0x390 [ 446.848165] ? mark_held_locks+0x130/0x130 [ 446.852420] ? mark_held_locks+0x130/0x130 [ 446.856687] ? mark_held_locks+0xc7/0x130 [ 446.860844] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 446.865862] ? zap_class+0x640/0x640 [ 446.869617] ? print_usage_bug+0xc0/0xc0 [ 446.873676] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 446.879212] ? check_preemption_disabled+0x48/0x280 [ 446.884244] ? __lock_is_held+0xb5/0x140 [ 446.888306] __alloc_pages_nodemask+0xad8/0xea0 [ 446.892991] ? zap_class+0x640/0x640 [ 446.896716] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 446.901770] ? find_held_lock+0x36/0x1c0 [ 446.905869] ? ____cache_alloc_node+0x1c7/0x1e0 [ 446.910558] ? lock_downgrade+0x900/0x900 [ 446.914732] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 446.920274] cache_grow_begin+0xa5/0x8c0 [ 446.924330] ? do_raw_spin_unlock+0xa7/0x330 [ 446.928770] fallback_alloc+0x204/0x2e0 [ 446.932751] ____cache_alloc_node+0x1c7/0x1e0 [ 446.937259] kmem_cache_alloc_node+0xe3/0x730 [ 446.941778] ? ipv6_get_ifaddr+0x42e/0x620 [ 446.946027] __alloc_skb+0x119/0x770 [ 446.949953] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 446.955229] ? netdev_alloc_frag+0x1f0/0x1f0 [ 446.959677] ? lock_downgrade+0x900/0x900 [ 446.963870] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 446.969417] ? refcount_sub_and_test_checked+0x203/0x310 [ 446.974868] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 446.980317] ? addrconf_rs_timer+0x690/0x690 [ 446.984736] ndisc_alloc_skb+0x144/0x340 [ 446.988845] ndisc_send_rs+0x331/0x6e0 [ 446.992730] addrconf_rs_timer+0x314/0x690 [ 446.996994] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 447.001230] call_timer_fn+0x272/0x920 [ 447.005130] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 447.009363] ? process_timeout+0x40/0x40 [ 447.013431] ? mark_held_locks+0xc7/0x130 [ 447.017598] ? _raw_spin_unlock_irq+0x27/0x80 [ 447.022089] ? _raw_spin_unlock_irq+0x27/0x80 [ 447.026589] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 447.030837] ? lockdep_hardirqs_on+0x296/0x5b0 [ 447.035416] ? trace_hardirqs_on+0xbd/0x310 [ 447.039762] ? kasan_check_read+0x11/0x20 [ 447.043904] ? __run_timers+0x7da/0xc70 [ 447.047878] ? trace_hardirqs_off_caller+0x310/0x310 [ 447.052982] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 447.057261] ? ipv6_get_lladdr+0x5e0/0x5e0 [ 447.061490] __run_timers+0x7e5/0xc70 [ 447.065307] ? timer_fixup_init+0x70/0x70 [ 447.069454] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 447.074471] ? zap_class+0x640/0x640 [ 447.078195] ? print_usage_bug+0xc0/0xc0 [ 447.082787] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 447.087987] ? find_held_lock+0x36/0x1c0 [ 447.092066] ? zap_class+0x640/0x640 [ 447.095787] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 447.101329] ? check_preemption_disabled+0x48/0x280 [ 447.106360] ? __lock_is_held+0xb5/0x140 [ 447.110425] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 447.115964] ? check_preemption_disabled+0x48/0x280 [ 447.121040] run_timer_softirq+0x52/0xb0 [ 447.125120] ? rcu_read_lock_sched_held+0x14f/0x180 [ 447.130136] __do_softirq+0x308/0xb7e [ 447.133953] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 447.138448] ? lock_downgrade+0x900/0x900 [ 447.142603] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 447.147714] ? pvclock_read_flags+0x160/0x160 [ 447.152221] ? lapic_next_event+0x5a/0x90 [ 447.156388] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 447.161950] ? kvm_clock_read+0x18/0x30 [ 447.165926] ? kvm_sched_clock_read+0x9/0x20 [ 447.170341] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 447.175877] ? check_preemption_disabled+0x48/0x280 [ 447.180903] irq_exit+0x17f/0x1c0 [ 447.184358] smp_apic_timer_interrupt+0x1cb/0x760 [ 447.189203] ? smp_reschedule_interrupt+0x109/0x650 [ 447.194219] ? smp_call_function_single_interrupt+0x650/0x650 [ 447.200100] ? interrupt_entry+0xb5/0xc0 [ 447.204168] ? trace_hardirqs_off_caller+0xbb/0x310 [ 447.209187] ? trace_hardirqs_off_caller+0xbb/0x310 [ 447.214200] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 447.219043] ? trace_hardirqs_on_caller+0x310/0x310 [ 447.224053] ? trace_hardirqs_on_caller+0x310/0x310 [ 447.229062] ? task_prio+0x50/0x50 [ 447.232595] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 447.238124] ? check_preemption_disabled+0x48/0x280 [ 447.243141] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 447.247996] apic_timer_interrupt+0xf/0x20 [ 447.252224] [ 447.254459] RIP: 0010:lock_acquire+0x268/0x520 [ 447.259040] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 [ 447.277950] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 447.285657] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000 [ 447.292921] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286 [ 447.300196] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008 [ 447.307460] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580 [ 447.314722] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 [ 447.322042] ? lruvec_lru_size+0x450/0x450 [ 447.326269] ? kasan_check_read+0x11/0x20 [ 447.330419] ? lock_release+0xa00/0xa00 [ 447.334424] ? throttle_direct_reclaim+0x9e0/0x9e0 [ 447.339359] down_read_trylock+0xda/0x140 [ 447.343503] ? shrink_slab+0x207/0x8c0 [ 447.347385] ? downgrade_write+0x270/0x270 [ 447.351659] shrink_slab+0x207/0x8c0 [ 447.355382] ? shrink_active_list+0x1f00/0x1f00 [ 447.360053] ? unregister_memcg_shrinker.isra.44+0x50/0x50 [ 447.365674] ? __lock_acquire+0x62f/0x4c20 [ 447.369902] ? percpu_ref_get_many+0x240/0x240 [ 447.374502] ? print_usage_bug+0xc0/0xc0 [ 447.378566] shrink_node+0x431/0x16b0 [ 447.382359] ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0 [ 447.387660] ? shrink_node_memcg+0x18f0/0x18f0 [ 447.392236] ? kvm_clock_read+0x18/0x30 [ 447.396204] ? ktime_get+0x2c1/0x400 [ 447.399935] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 447.404427] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 447.409961] ? __cpuset_node_allowed+0x19b/0x660 [ 447.414708] ? mark_held_locks+0x130/0x130 [ 447.418943] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 447.424647] ? zap_class+0x640/0x640 [ 447.428361] do_try_to_free_pages+0x3e7/0x1290 [ 447.432939] ? zap_class+0x640/0x640 [ 447.436659] ? shrink_node+0x16b0/0x16b0 [ 447.440716] ? __lock_is_held+0xb5/0x140 [ 447.444783] try_to_free_pages+0x4d0/0xb90 [ 447.449050] ? do_try_to_free_pages+0x1290/0x1290 [ 447.453953] ? lock_acquire+0x1ed/0x520 [ 447.457924] ? set_page_refcounted+0x280/0x280 [ 447.462561] ? lock_release+0xa00/0xa00 [ 447.466537] ? _raw_spin_unlock_irq+0x60/0x80 [ 447.471031] ? psi_memstall_enter+0x240/0x2b0 [ 447.475527] ? psi_memstall_tick+0x230/0x230 [ 447.479949] __alloc_pages_slowpath+0xa48/0x2de0 [ 447.484738] ? warn_alloc+0x120/0x120 [ 447.488539] ? mark_held_locks+0x130/0x130 [ 447.492782] ? find_get_entry+0xaae/0x1120 [ 447.497023] ? filemap_map_pages+0x1a20/0x1a20 [ 447.501624] ? zap_class+0x640/0x640 [ 447.505341] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 447.510899] ? check_preemption_disabled+0x48/0x280 [ 447.515941] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 447.521481] ? should_fail+0x22d/0xd01 [ 447.525374] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 447.530487] ? zap_class+0x640/0x640 [ 447.534253] ? __lock_is_held+0xb5/0x140 [ 447.538321] ? mark_held_locks+0x130/0x130 [ 447.542559] ? lock_release+0xa00/0xa00 [ 447.546539] ? perf_trace_sched_process_exec+0x860/0x860 [ 447.551989] ? xa_load+0x2ba/0x460 [ 447.555551] ? lock_downgrade+0x900/0x900 [ 447.559716] ? __might_sleep+0x95/0x190 [ 447.563695] __alloc_pages_nodemask+0xad8/0xea0 [ 447.568371] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 447.573404] ? __page_cache_alloc+0x191/0x5c0 [ 447.577898] ? xa_load+0x2e1/0x460 [ 447.581441] ? xa_clear_mark+0x40/0x40 [ 447.585332] ? zap_class+0x640/0x640 [ 447.589050] ? zap_class+0x640/0x640 [ 447.592762] ? zap_class+0x640/0x640 [ 447.596477] ? __do_page_cache_readahead+0x663/0x810 [ 447.601583] ? find_held_lock+0x36/0x1c0 [ 447.605646] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 447.611194] alloc_pages_current+0x173/0x350 [ 447.615605] __page_cache_alloc+0x38c/0x5c0 [ 447.619941] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 447.624867] ? kasan_check_read+0x11/0x20 [ 447.629029] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 447.634302] ? generic_perform_write+0x6a0/0x6a0 [ 447.639058] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 447.644591] ? check_preemption_disabled+0x48/0x280 [ 447.649629] filemap_fault+0x1595/0x25f0 [ 447.653698] ? __lock_page_or_retry+0xa00/0xa00 [ 447.658365] ? mark_held_locks+0x130/0x130 [ 447.662606] ? filemap_map_pages+0xd6b/0x1a20 [ 447.667099] ? lock_downgrade+0x900/0x900 [ 447.671270] ? check_preemption_disabled+0x48/0x280 [ 447.676313] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 447.681283] ? kasan_check_read+0x11/0x20 [ 447.685432] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 447.690707] ? rcu_softirq_qs+0x20/0x20 [ 447.694692] ? filemap_map_pages+0xd92/0x1a20 [ 447.699201] ? find_get_entries_tag+0x1400/0x1400 [ 447.704046] ? debug_object_destroy+0x2b0/0x2b0 [ 447.708720] ? lock_pi_update_atomic+0x150/0x150 [ 447.713473] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 447.719018] ? lock_acquire+0x1ed/0x520 [ 447.723000] ? ext4_filemap_fault+0x7a/0xad [ 447.727330] ? lock_release+0xa00/0xa00 [ 447.731324] ? perf_trace_sched_process_exec+0x860/0x860 [ 447.736785] ? print_usage_bug+0xc0/0xc0 [ 447.740864] ? print_usage_bug+0xc0/0xc0 [ 447.744935] ? down_read+0x8d/0x120 [ 447.748554] ? ext4_filemap_fault+0x7a/0xad [ 447.752888] ? __down_interruptible+0x700/0x700 [ 447.757577] ext4_filemap_fault+0x82/0xad [ 447.761729] __do_fault+0x100/0x6b0 [ 447.765362] ? find_held_lock+0x36/0x1c0 [ 447.769427] ? pmd_devmap_trans_unstable+0x220/0x220 [ 447.774527] ? mark_held_locks+0x130/0x130 [ 447.778801] ? mark_held_locks+0x130/0x130 [ 447.783073] ? kasan_check_read+0x11/0x20 [ 447.787232] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 447.792769] __handle_mm_fault+0x3ea0/0x5be0 [ 447.797189] ? perf_trace_lock+0x7a0/0x7a0 [ 447.801474] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 447.806367] ? __switch_to_asm+0x34/0x70 [ 447.810425] ? __switch_to_asm+0x34/0x70 [ 447.814490] ? zap_class+0x640/0x640 [ 447.818227] ? zap_class+0x640/0x640 [ 447.821944] ? __x64_sys_futex+0x53e/0x6a0 [ 447.826185] ? find_held_lock+0x36/0x1c0 [ 447.830253] ? handle_mm_fault+0x42a/0xc70 [ 447.834521] ? lock_downgrade+0x900/0x900 [ 447.838666] ? check_preemption_disabled+0x48/0x280 [ 447.843697] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 447.848633] ? kasan_check_read+0x11/0x20 [ 447.852776] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 447.858049] ? rcu_softirq_qs+0x20/0x20 [ 447.862019] ? trace_hardirqs_off_caller+0x310/0x310 [ 447.867120] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 447.872649] ? sync_mm_rss+0x9a/0x1c0 [ 447.876449] handle_mm_fault+0x54f/0xc70 [ 447.880511] ? __handle_mm_fault+0x5be0/0x5be0 [ 447.885107] ? find_vma+0x34/0x190 [ 447.888650] __do_page_fault+0x5e8/0xe60 [ 447.892722] ? trace_hardirqs_off+0xb8/0x310 [ 447.897136] do_page_fault+0xf2/0x7e0 [ 447.900959] ? vmalloc_sync_all+0x30/0x30 [ 447.905102] ? error_entry+0x70/0xd0 [ 447.908809] ? trace_hardirqs_off_caller+0xbb/0x310 [ 447.913818] ? trace_hardirqs_on_caller+0xc0/0x310 [ 447.918745] ? syscall_return_slowpath+0x5e0/0x5e0 [ 447.923699] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 447.928610] ? trace_hardirqs_on_caller+0x310/0x310 [ 447.933675] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 447.939123] ? prepare_exit_to_usermode+0x291/0x3b0 [ 447.944131] ? page_fault+0x8/0x30 [ 447.947674] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 447.952533] ? page_fault+0x8/0x30 [ 447.956099] page_fault+0x1e/0x30 [ 447.959544] RIP: 0033:0x45ddf3 [ 447.962759] Code: Bad RIP value. [ 447.966113] RSP: 002b:000000c420023ea0 EFLAGS: 00010202 [ 447.971483] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3 [ 447.978777] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0 [ 447.986041] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 [ 447.993314] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 [ 448.000578] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000 [ 448.007896] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95 [ 448.007900] warn_alloc_show_mem: 1 callbacks suppressed [ 448.007907] Mem-Info: [ 448.015194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 448.020571] active_anon:56208 inactive_anon:1280 isolated_anon:0 [ 448.020571] active_file:17 inactive_file:17 isolated_file:0 [ 448.020571] unevictable:0 dirty:4 writeback:0 unstable:0 [ 448.020571] slab_reclaimable:9482 slab_unreclaimable:1449936 [ 448.020571] mapped:49154 shmem:1326 pagetables:691 bounce:0 [ 448.020571] free:13550 free_pcp:124 free_cma:0 [ 448.022936] Call Trace: [ 448.022945] [ 448.032354] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 448.065380] dump_stack+0x244/0x39d [ 448.067939] 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 [ 448.070086] ? dump_stack_print_info.cold.1+0x20/0x20 [ 448.098964] lowmem_reserve[]: 0 2818 6321 6321 [ 448.102628] warn_alloc.cold.116+0xb7/0x1bd [ 448.128721] Node 0 DMA32 free:24744kB 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:248kB local_pcp:0kB free_cma:0kB [ 448.133896] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 448.138446] lowmem_reserve[]: 0 0 3503 3503 [ 448.142759] ? lock_downgrade+0x900/0x900 [ 448.170057] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 448.174893] ? trace_hardirqs_off+0xb8/0x310 [ 448.179192] lowmem_reserve[]: 0 0 0 0 [ 448.183333] ? trace_hardirqs_off+0xb8/0x310 [ 448.212206] 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 [ 448.216609] __alloc_pages_slowpath+0x2651/0x2de0 [ 448.220381] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB [ 448.224798] ? warn_alloc+0x120/0x120 [ 448.238275] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB [ 448.243129] ? warn_alloc+0x120/0x120 [ 448.257848] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 448.261635] ? __lock_acquire+0x62f/0x4c20 [ 448.276358] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 448.280147] ? warn_alloc+0x120/0x120 [ 448.288966] 1360 total pagecache pages [ 448.293199] ? print_usage_bug+0xc0/0xc0 [ 448.301757] 0 pages in swap cache [ 448.305537] ? print_usage_bug+0xc0/0xc0 [ 448.309400] Swap cache stats: add 0, delete 0, find 0/0 [ 448.313465] ? mark_held_locks+0x130/0x130 [ 448.316887] Free swap = 0kB [ 448.320958] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 448.326293] Total swap = 0kB [ 448.330548] ? should_fail+0x22d/0xd01 [ 448.333539] 1965979 pages RAM [ 448.339075] ? zap_class+0x640/0x640 [ 448.342068] 0 pages HighMem/MovableOnly [ 448.345952] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 448.349028] 342854 pages reserved [ 448.352729] ? __lock_acquire+0x62f/0x4c20 [ 448.356677] 0 pages cma reserved [ 448.361771] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 448.365268] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 448.369423] ? should_fail+0x22d/0xd01 [ 448.373308] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) [ 448.377875] ? mark_held_locks+0x130/0x130 [ 448.377890] ? mark_held_locks+0x130/0x130 [ 448.384647] syz-fuzzer cpuset=/ mems_allowed=0 [ 448.388519] ? lock_downgrade+0x900/0x900 [ 448.388535] ? zap_class+0x640/0x640 [ 448.388547] ? zap_class+0x640/0x640 [ 448.423452] ? zap_class+0x640/0x640 [ 448.427165] ? do_raw_spin_unlock+0xa7/0x330 [ 448.431566] ? trace_hardirqs_on+0x310/0x310 [ 448.435968] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 448.441500] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 448.447035] ? check_preemption_disabled+0x48/0x280 [ 448.452057] ? __lock_is_held+0xb5/0x140 [ 448.456126] __alloc_pages_nodemask+0xad8/0xea0 [ 448.460833] ? zap_class+0x640/0x640 [ 448.464544] ? __alloc_pages_slowpath+0x2de0/0x2de0 [ 448.469563] ? find_held_lock+0x36/0x1c0 [ 448.473625] ? ____cache_alloc_node+0x1c7/0x1e0 [ 448.478313] ? lock_downgrade+0x900/0x900 [ 448.482467] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 448.488002] cache_grow_begin+0xa5/0x8c0 [ 448.492056] ? do_raw_spin_unlock+0xa7/0x330 [ 448.496477] fallback_alloc+0x204/0x2e0 [ 448.500469] ____cache_alloc_node+0x1c7/0x1e0 [ 448.504965] kmem_cache_alloc_node+0xe3/0x730 [ 448.509472] ? lockdep_hardirqs_on+0x296/0x5b0 [ 448.514121] __alloc_skb+0x119/0x770 [ 448.517828] ? __bpf_trace_timer_expire_entry+0x30/0x30 [ 448.523193] ? netdev_alloc_frag+0x1f0/0x1f0 [ 448.527609] ? vprintk_default+0x28/0x30 [ 448.531705] ? vprintk_func+0x85/0x181 [ 448.535649] ? printk+0xa7/0xcf [ 448.538924] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 448.543688] new_skb+0x26/0x1c0 [ 448.546961] aoecmd_cfg+0x279/0x7f0 [ 448.550583] ? find_held_lock+0x36/0x1c0 [ 448.554642] ? aoecmd_ata_rsp+0x10d0/0x10d0 [ 448.558962] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 448.564537] ? __lock_is_held+0xb5/0x140 [ 448.568612] discover_timer+0x50/0x60 [ 448.572422] call_timer_fn+0x272/0x920 [ 448.576345] ? aoedev_by_aoeaddr.cold.9+0xba/0xba [ 448.581186] ? process_timeout+0x40/0x40 [ 448.585248] ? __run_timers+0x7da/0xc70 [ 448.589263] ? _raw_spin_unlock_irq+0x27/0x80 [ 448.593769] ? _raw_spin_unlock_irq+0x27/0x80 [ 448.598257] ? aoedev_by_aoeaddr.cold.9+0xba/0xba [ 448.603093] ? lockdep_hardirqs_on+0x296/0x5b0 [ 448.607672] ? trace_hardirqs_on+0xbd/0x310 [ 448.611986] ? kasan_check_read+0x11/0x20 [ 448.616143] ? __run_timers+0x7da/0xc70 [ 448.620123] ? trace_hardirqs_off_caller+0x310/0x310 [ 448.625252] ? aoedev_by_aoeaddr.cold.9+0xba/0xba [ 448.630109] __run_timers+0x7e5/0xc70 [ 448.633977] ? timer_fixup_init+0x70/0x70 [ 448.638198] ? kasan_check_read+0x11/0x20 [ 448.642345] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 448.647621] ? rcu_softirq_qs+0x20/0x20 [ 448.651591] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 448.657127] ? check_preemption_disabled+0x48/0x280 [ 448.662151] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 448.666915] ? retint_kernel+0x2d/0x2d [ 448.670797] ? trace_hardirqs_on_caller+0xc0/0x310 [ 448.675772] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 448.680543] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 448.685991] ? zap_class+0x640/0x640 [ 448.689740] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 448.695277] ? check_preemption_disabled+0x48/0x280 [ 448.700318] ? __lock_is_held+0xb5/0x140 [ 448.704381] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 448.709917] ? check_preemption_disabled+0x48/0x280 [ 448.714939] run_timer_softirq+0x52/0xb0 [ 448.718997] ? rcu_read_lock_sched_held+0x14f/0x180 [ 448.724010] __do_softirq+0x308/0xb7e [ 448.727811] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 448.732328] ? lock_downgrade+0x900/0x900 [ 448.736479] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 448.741588] ? pvclock_read_flags+0x160/0x160 [ 448.746085] ? lapic_next_event+0x5a/0x90 [ 448.750232] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 448.755780] ? kvm_clock_read+0x18/0x30 [ 448.759760] ? kvm_sched_clock_read+0x9/0x20 [ 448.764172] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 448.769714] ? check_preemption_disabled+0x48/0x280 [ 448.774753] irq_exit+0x17f/0x1c0 [ 448.778210] smp_apic_timer_interrupt+0x1cb/0x760 [ 448.783060] ? smp_reschedule_interrupt+0x109/0x650 [ 448.788080] ? smp_call_function_single_interrupt+0x650/0x650 [ 448.793969] ? interrupt_entry+0xb5/0xc0 [ 448.798048] ? trace_hardirqs_off_caller+0xbb/0x310 [ 448.803060] ? trace_hardirqs_off_caller+0xbb/0x310 [ 448.808077] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 448.812917] ? trace_hardirqs_on_caller+0x310/0x310 [ 448.817929] ? trace_hardirqs_on_caller+0x310/0x310 [ 448.823055] ? task_prio+0x50/0x50 [ 448.826591] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 448.832136] ? check_preemption_disabled+0x48/0x280 [ 448.837169] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 448.842011] apic_timer_interrupt+0xf/0x20 [ 448.846253] [ 448.848489] RIP: 0010:kmem_cache_alloc+0x297/0x730 [ 448.853417] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd [ 448.872333] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 448.880031] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 [ 448.887291] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286 [ 448.894553] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000 [ 448.901812] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 448.909074] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020 [ 448.916396] skb_clone+0x1bb/0x500 [ 448.919954] ? skb_split+0x11e0/0x11e0 [ 448.923840] ? preempt_notifier_register+0x200/0x200 [ 448.928933] ? __switch_to_asm+0x34/0x70 [ 448.932985] ? __switch_to_asm+0x34/0x70 [ 448.937048] ? __switch_to_asm+0x40/0x70 [ 448.941100] ? __switch_to_asm+0x34/0x70 [ 448.945189] ? __switch_to_asm+0x40/0x70 [ 448.949446] ? __switch_to_asm+0x40/0x70 [ 448.953508] ? __switch_to_asm+0x34/0x70 [ 448.957567] ? __switch_to_asm+0x34/0x70 [ 448.961634] ? __switch_to_asm+0x40/0x70 [ 448.965709] ? __switch_to_asm+0x34/0x70 [ 448.969778] bpf_clone_redirect+0xb9/0x490 [ 448.974023] bpf_prog_bebbfe2050753572+0x90e/0x1000 [ 448.979041] ? __sched_text_start+0x8/0x8 [ 448.983191] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 448.987968] ? find_held_lock+0x36/0x1c0 [ 448.992049] ? lock_acquire+0x1ed/0x520 [ 448.996024] ? bpf_test_run+0x3ee/0x7a0 [ 448.999994] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 449.005528] ? check_preemption_disabled+0x48/0x280 [ 449.010550] ? kasan_check_read+0x11/0x20 [ 449.014693] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 449.019979] ? rcu_softirq_qs+0x20/0x20 [ 449.023952] ? preempt_schedule+0x4d/0x60 [ 449.028093] ? ___preempt_schedule+0x16/0x18 [ 449.032503] ? bpf_test_run+0x271/0x7a0 [ 449.036488] ? netlink_diag_dump+0x2a0/0x2a0 [ 449.040895] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 449.046466] ? bpf_test_init.isra.10+0x70/0x100 [ 449.051138] ? bpf_prog_test_run_skb+0x762/0xd60 [ 449.055904] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 449.060746] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 449.066281] ? fput+0x130/0x1a0 [ 449.069559] ? __bpf_prog_get+0x9b/0x290 [ 449.073616] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 449.078459] ? bpf_prog_test_run+0x130/0x1a0 [ 449.083003] ? __x64_sys_bpf+0x3d8/0x520 [ 449.087056] ? bpf_prog_get+0x20/0x20 [ 449.090865] ? do_syscall_64+0x1b9/0x820 [ 449.094922] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 449.100286] ? syscall_return_slowpath+0x5e0/0x5e0 [ 449.105214] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 449.110055] ? trace_hardirqs_on_caller+0x310/0x310 [ 449.115075] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 449.120099] ? prepare_exit_to_usermode+0x291/0x3b0 [ 449.125117] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 449.129958] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 449.135341] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95