CPU: 1 PID: 5401 Comm: syz-fuzzer Not tainted 4.19.0-rc7+ #66 rcu: INFO: rcu_preempt self-detected stall on CPU Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: rcu: 0-...!: (121 ticks this GP) idle=27a/1/0x4000000000000004 softirq=19609/19629 fqs=5 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 rcu: (t=10574 jiffies g=12065 q=12) rcu: rcu_preempt kthread starved for 9701 jiffies! g12065 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 rcu: RCU grace-period kthread stack dump: rcu_preempt R running task 23064 10 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804 rcu_gp_kthread+0x9d9/0x2310 kernel/rcu/tree.c:2194 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0x91/0x8c0 mm/slab.c:2677 fallback_alloc+0x203/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:995 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3819 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 NMI backtrace for cpu 0 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore+0x4a/0x52 arch/x86/include/asm/paravirt.h:788 Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 e9 43 19 fa 48 83 3d 39 ed 88 01 00 75 07 e8 fa d3 d5 f9 0f 0b e8 f3 d3 d5 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 4c 89 45 d0 e8 9d 43 19 fa 4c 8b 45 d0 e9 RSP: 0000:ffff8801c729e238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801cdf744c0 RBX: 0000000000000293 RCX: 1ffff10039bee9b6 RDX: 0000000000000000 RSI: ffffffff87a9055d RDI: 0000000000000293 RBP: ffff8801c729e240 R08: ffff8801cdf74db0 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801cdf744c0 R12: 0000000000000293 R13: 0000000000000200 R14: 0000000000000001 R15: ffffffff8931f280 dump_stack+0x26a/0x2b4 lib/dump_stack.c:118 dump_header+0x27b/0xf72 mm/oom_kill.c:441 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline] __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38f/0x5b0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259 __do_fault+0x100/0x6b0 mm/memory.c:3240 do_read_fault mm/memory.c:3652 [inline] do_fault mm/memory.c:3752 [inline] handle_pte_fault mm/memory.c:3983 [inline] __handle_mm_fault+0x3709/0x53e0 mm/memory.c:4107 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161 RIP: 0033:0x45ddf3 Code: Bad RIP value. RSP: 002b:000000c420024ea0 EFLAGS: 00010206 RAX: ffffffffffffff92 RBX: 000000003b975336 RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cd940 RBP: 000000c420024ee8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c420024ed8 R11: 0000000000000206 R12: 0000000000000001 R13: 00000000000000ff R14: 00007f276b0d5000 R15: 0000000000000040 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 7431 Comm: syz-executor1 Not tainted 4.19.0-rc7+ #66 Mem-Info: active_anon:28755 inactive_anon:112 isolated_anon:0 active_file:13 inactive_file:12 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:8603 slab_unreclaimable:1497359 mapped:32779 shmem:119 pagetables:487 bounce:0 free:13701 free_pcp:389 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:115020kB inactive_anon:448kB active_file:52kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131116kB dirty:0kB writeback:0kB shmem:476kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 10240kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Call Trace: 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 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 lowmem_reserve[]: 0 2819 6323 6323 nmi_cpu_backtrace.cold.3+0x63/0xa2 lib/nmi_backtrace.c:101 Node 0 nmi_trigger_cpumask_backtrace+0x1b3/0x1ed lib/nmi_backtrace.c:62 DMA32 free:25124kB min:30060kB low:37572kB high:45084kB active_anon:16kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890736kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 lowmem_reserve[]: 0 trigger_single_cpu_backtrace include/linux/nmi.h:162 [inline] rcu_dump_cpu_stacks+0x175/0x1c2 kernel/rcu/tree.c:1340 0 3503 3503 print_cpu_stall.cold.78+0x2d3/0x524 kernel/rcu/tree.c:1478 Node 0 Normal free:13772kB min:37352kB low:46688kB high:56024kB active_anon:115004kB inactive_anon:448kB active_file:52kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:4992kB pagetables:1948kB bounce:0kB free_pcp:1308kB local_pcp:1052kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB check_cpu_stall kernel/rcu/tree.c:1550 [inline] __rcu_pending kernel/rcu/tree.c:3276 [inline] rcu_pending kernel/rcu/tree.c:3319 [inline] rcu_check_callbacks+0xfd9/0x1990 kernel/rcu/tree.c:2665 (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 Node 0 DMA32: 1*4kB (U) 0*8kB 2*16kB (M) 2*32kB (M) 5*64kB (UM) update_process_times+0x2d/0x70 kernel/time/timer.c:1636 3*128kB (M) tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164 3*256kB tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274 (M) __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460 4*512kB (UM) 3*1024kB (UM) 3*2048kB (M) 3*4096kB (M) = 25124kB Node 0 Normal: hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518 311*4kB local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1029 [inline] smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1054 (MEH) 580*8kB (UMEH) 261*16kB (UMEH) 101*32kB (UMH) 1*64kB apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 (U) RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:slab_alloc_node mm/slab.c:3329 [inline] RIP: 0010:kmem_cache_alloc_node+0x247/0x730 mm/slab.c:3642 0*128kB Code: 40 7e 0f 85 32 ff ff ff e8 f5 ac 3e ff e9 28 ff ff ff e8 1c 14 c3 ff 48 83 3d ac 21 70 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 bf fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 6a a1 0*256kB RSP: 0000:ffff8801dae07450 EFLAGS: 00000286 1*512kB ORIG_RAX: ffffffffffffff13 (U) RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff10033ce8561 0*1024kB RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286 0*2048kB RBP: ffff8801dae074c0 R08: ffff88019e742b08 R09: 0000000000000002 0*4096kB R10: 0000000000000000 R11: ffff88019e742240 R12: ffff8801d9be7680 = 13868kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB R13: ffff8801d9be7680 R14: 0000000000000000 R15: 0000000000000286 Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 144 total pagecache pages 0 pages in swap cache __alloc_skb+0x119/0x770 net/core/skbuff.c:193 Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 342307 pages reserved 0 pages cma reserved alloc_skb include/linux/skbuff.h:995 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3819 syz-fuzzer cpuset= / call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 mems_allowed=0 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:slab_alloc_node mm/slab.c:3329 [inline] RIP: 0010:kmem_cache_alloc_node_trace+0x249/0x740 mm/slab.c:3661 Code: 3f 7e 0f 85 32 ff ff ff e8 83 78 3e ff e9 28 ff ff ff e8 aa df c2 ff 48 83 3d 3a ed 6f 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 c1 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 6a a1 RSP: 0000:ffff8801993bf4a8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff88019e742ac0 RDI: 0000000000000286 RBP: ffff8801993bf520 R08: ffff88019e742240 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801da800940 R13: ffff8801da800940 R14: 0000000000000000 R15: 0000000000000286 __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x33/0x70 mm/slab.c:3696 __kmalloc_reserve.isra.39+0xcc/0xe0 net/core/skbuff.c:145 pskb_expand_head+0x230/0x10f0 net/core/skbuff.c:1460 skb_ensure_writable+0x3dd/0x640 net/core/skbuff.c:5128 __bpf_try_make_writable net/core/filter.c:1633 [inline] bpf_try_make_writable net/core/filter.c:1639 [inline] bpf_try_make_head_writable net/core/filter.c:1647 [inline] ____bpf_clone_redirect net/core/filter.c:2084 [inline] bpf_clone_redirect+0x14a/0x490 net/core/filter.c:2062 bpf_prog_bebbfe2050753572+0xcb5/0x1000 CPU: 1 PID: 5401 Comm: syz-fuzzer Not tainted 4.19.0-rc7+ #66 ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 syz-executor1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 syz-executor1 cpuset= syz1 mems_allowed=0 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0x91/0x8c0 mm/slab.c:2677 fallback_alloc+0x203/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:995 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3819 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore+0x4a/0x52 arch/x86/include/asm/paravirt.h:788 Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 e9 43 19 fa 48 83 3d 39 ed 88 01 00 75 07 e8 fa d3 d5 f9 0f 0b e8 f3 d3 d5 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 4c 89 45 d0 e8 9d 43 19 fa 4c 8b 45 d0 e9 RSP: 0000:ffff8801c729e238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801cdf744c0 RBX: 0000000000000293 RCX: 1ffff10039bee9b6 RDX: 0000000000000000 RSI: ffffffff87a9055d RDI: 0000000000000293 RBP: ffff8801c729e240 R08: ffff8801cdf74db0 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801cdf744c0 R12: 0000000000000293 R13: 0000000000000200 R14: 0000000000000001 R15: ffffffff8931f280 dump_stack+0x26a/0x2b4 lib/dump_stack.c:118 dump_header+0x27b/0xf72 mm/oom_kill.c:441 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline] __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38f/0x5b0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259 __do_fault+0x100/0x6b0 mm/memory.c:3240 do_read_fault mm/memory.c:3652 [inline] do_fault mm/memory.c:3752 [inline] handle_pte_fault mm/memory.c:3983 [inline] __handle_mm_fault+0x3709/0x53e0 mm/memory.c:4107 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161 RIP: 0033:0x45ddf3 Code: Bad RIP value. RSP: 002b:000000c420024ea0 EFLAGS: 00010206 RAX: ffffffffffffff92 RBX: 000000003b975336 RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cd940 RBP: 000000c420024ee8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c420024ed8 R11: 0000000000000206 R12: 0000000000000001 R13: 00000000000000ff R14: 00007f276b0d5000 R15: 0000000000000040 CPU: 0 PID: 7431 Comm: syz-executor1 Not tainted 4.19.0-rc7+ #66 Mem-Info: active_anon:28755 inactive_anon:112 isolated_anon:0 active_file:13 inactive_file:12 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:8603 slab_unreclaimable:1497359 mapped:32779 shmem:119 pagetables:487 bounce:0 free:13701 free_pcp:389 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:115020kB inactive_anon:448kB active_file:52kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131116kB dirty:0kB writeback:0kB shmem:476kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 10240kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Call Trace: 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 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 lowmem_reserve[]: 0 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 2819 6323 6323 Node 0 DMA32 free:25124kB min:30060kB low:37572kB high:45084kB active_anon:16kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890736kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13772kB min:37352kB low:46688kB high:56024kB active_anon:115004kB inactive_anon:448kB active_file:52kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:4992kB pagetables:1948kB bounce:0kB free_pcp:1308kB local_pcp:1052kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 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 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 (U) 1*2048kB (M) 3*4096kB (M) = 15908kB Node 0 DMA32: __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0x91/0x8c0 mm/slab.c:2677 1*4kB (U) fallback_alloc+0x203/0x2e0 mm/slab.c:3219 0*8kB ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 2*16kB slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 (M) 2*32kB __alloc_skb+0x119/0x770 net/core/skbuff.c:193 (M) 5*64kB (UM) 3*128kB (M) 3*256kB (M) 4*512kB (UM) alloc_skb include/linux/skbuff.h:995 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 3*1024kB ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 (UM) addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3819 3*2048kB (M) call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 3*4096kB (M) = 25124kB Node 0 Normal: 311*4kB (MEH) 580*8kB (UMEH) 261*16kB (UMEH) 101*32kB (UMH) 1*64kB (U) 0*128kB expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 0*256kB 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13868kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 144 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 342307 pages reserved 0 pages cma reserved run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) __do_softirq+0x30b/0xad8 kernel/softirq.c:292 syz-fuzzer cpuset= / mems_allowed=0 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:slab_alloc_node mm/slab.c:3329 [inline] RIP: 0010:kmem_cache_alloc_node_trace+0x249/0x740 mm/slab.c:3661 Code: 3f 7e 0f 85 32 ff ff ff e8 83 78 3e ff e9 28 ff ff ff e8 aa df c2 ff 48 83 3d 3a ed 6f 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 c1 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 6a a1 RSP: 0000:ffff8801993bf4a8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff88019e742ac0 RDI: 0000000000000286 RBP: ffff8801993bf520 R08: ffff88019e742240 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801da800940 R13: ffff8801da800940 R14: 0000000000000000 R15: 0000000000000286 __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x33/0x70 mm/slab.c:3696 __kmalloc_reserve.isra.39+0xcc/0xe0 net/core/skbuff.c:145 pskb_expand_head+0x230/0x10f0 net/core/skbuff.c:1460 skb_ensure_writable+0x3dd/0x640 net/core/skbuff.c:5128 __bpf_try_make_writable net/core/filter.c:1633 [inline] bpf_try_make_writable net/core/filter.c:1639 [inline] bpf_try_make_head_writable net/core/filter.c:1647 [inline] ____bpf_clone_redirect net/core/filter.c:2084 [inline] bpf_clone_redirect+0x14a/0x490 net/core/filter.c:2062 bpf_prog_bebbfe2050753572+0xcb5/0x1000 CPU: 1 PID: 5401 Comm: syz-fuzzer Not tainted 4.19.0-rc7+ #66 ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: syz-executor1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor1 cpuset= __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 syz1 mems_allowed=0 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0x91/0x8c0 mm/slab.c:2677 fallback_alloc+0x203/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:995 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3819 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore+0x4a/0x52 arch/x86/include/asm/paravirt.h:788 Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 e9 43 19 fa 48 83 3d 39 ed 88 01 00 75 07 e8 fa d3 d5 f9 0f 0b e8 f3 d3 d5 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 4c 89 45 d0 e8 9d 43 19 fa 4c 8b 45 d0 e9 RSP: 0000:ffff8801c729e238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801cdf744c0 RBX: 0000000000000293 RCX: 1ffff10039bee9b6 RDX: 0000000000000000 RSI: ffffffff87a9055d RDI: 0000000000000293 RBP: ffff8801c729e240 R08: ffff8801cdf74db0 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801cdf744c0 R12: 0000000000000293 R13: 0000000000000200 R14: 0000000000000001 R15: ffffffff8931f280 dump_stack+0x26a/0x2b4 lib/dump_stack.c:118 dump_header+0x27b/0xf72 mm/oom_kill.c:441 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline] __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38f/0x5b0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259 __do_fault+0x100/0x6b0 mm/memory.c:3240 do_read_fault mm/memory.c:3652 [inline] do_fault mm/memory.c:3752 [inline] handle_pte_fault mm/memory.c:3983 [inline] __handle_mm_fault+0x3709/0x53e0 mm/memory.c:4107 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161 RIP: 0033:0x45ddf3 Code: Bad RIP value. RSP: 002b:000000c420024ea0 EFLAGS: 00010206 RAX: ffffffffffffff92 RBX: 000000003b975336 RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cd940 RBP: 000000c420024ee8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c420024ed8 R11: 0000000000000206 R12: 0000000000000001 R13: 00000000000000ff R14: 00007f276b0d5000 R15: 0000000000000040 CPU: 0 PID: 7431 Comm: syz-executor1 Not tainted 4.19.0-rc7+ #66 warn_alloc_show_mem: 1 callbacks suppressed Mem-Info: Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 active_anon:28755 inactive_anon:112 isolated_anon:0 active_file:13 inactive_file:12 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:8603 slab_unreclaimable:1497359 mapped:32779 shmem:119 pagetables:487 bounce:0 free:13701 free_pcp:389 free_cma:0 Call Trace: Node 0 active_anon:115020kB inactive_anon:448kB active_file:52kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131116kB dirty:0kB writeback:0kB shmem:476kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 10240kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 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 lowmem_reserve[]: warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 0 2819 6323 6323 Node 0 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 DMA32 free:25124kB min:30060kB low:37572kB high:45084kB active_anon:16kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890736kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13772kB min:37352kB low:46688kB high:56024kB active_anon:115004kB inactive_anon:448kB active_file:52kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:4992kB pagetables:1948kB bounce:0kB free_pcp:1308kB local_pcp:1052kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 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 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 (M) 3*4096kB (M) = 15908kB Node 0 DMA32: 1*4kB (U) __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0x91/0x8c0 mm/slab.c:2677 0*8kB 2*16kB fallback_alloc+0x203/0x2e0 mm/slab.c:3219 (M) ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 2*32kB slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 (M) 5*64kB __alloc_skb+0x119/0x770 net/core/skbuff.c:193 (UM) 3*128kB (M) 3*256kB (M) 4*512kB (UM) 3*1024kB alloc_skb include/linux/skbuff.h:995 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 (UM) ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 3*2048kB addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3819 (M) 3*4096kB call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 (M) = 25124kB Node 0 Normal: 311*4kB (MEH) 580*8kB (UMEH) 261*16kB (UMEH) 101*32kB (UMH) 1*64kB expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 (U) 0*128kB 0*256kB 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13868kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 144 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 Total swap = 0kB 1965979 pages RAM __do_softirq+0x30b/0xad8 kernel/softirq.c:292 0 pages HighMem/MovableOnly 342307 pages reserved 0 pages cma reserved ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-fuzzer cpuset= / mems_allowed=0 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:slab_alloc_node mm/slab.c:3329 [inline] RIP: 0010:kmem_cache_alloc_node_trace+0x249/0x740 mm/slab.c:3661 Code: 3f 7e 0f 85 32 ff ff ff e8 83 78 3e ff e9 28 ff ff ff e8 aa df c2 ff 48 83 3d 3a ed 6f 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 c1 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 6a a1 RSP: 0000:ffff8801993bf4a8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff88019e742ac0 RDI: 0000000000000286 RBP: ffff8801993bf520 R08: ffff88019e742240 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801da800940 R13: ffff8801da800940 R14: 0000000000000000 R15: 0000000000000286 __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x33/0x70 mm/slab.c:3696 __kmalloc_reserve.isra.39+0xcc/0xe0 net/core/skbuff.c:145 pskb_expand_head+0x230/0x10f0 net/core/skbuff.c:1460 skb_ensure_writable+0x3dd/0x640 net/core/skbuff.c:5128 __bpf_try_make_writable net/core/filter.c:1633 [inline] bpf_try_make_writable net/core/filter.c:1639 [inline] bpf_try_make_head_writable net/core/filter.c:1647 [inline] ____bpf_clone_redirect net/core/filter.c:2084 [inline] bpf_clone_redirect+0x14a/0x490 net/core/filter.c:2062 bpf_prog_bebbfe2050753572+0xcb5/0x1000 CPU: 1 PID: 5401 Comm: syz-fuzzer Not tainted 4.19.0-rc7+ #66 ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 syz-executor1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 syz-executor1 cpuset= syz1 mems_allowed=0 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0x91/0x8c0 mm/slab.c:2677 fallback_alloc+0x203/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:995 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3819 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore+0x4a/0x52 arch/x86/include/asm/paravirt.h:788 Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 e9 43 19 fa 48 83 3d 39 ed 88 01 00 75 07 e8 fa d3 d5 f9 0f 0b e8 f3 d3 d5 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 4c 89 45 d0 e8 9d 43 19 fa 4c 8b 45 d0 e9 RSP: 0000:ffff8801c729e238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801cdf744c0 RBX: 0000000000000293 RCX: 1ffff10039bee9b6 RDX: 0000000000000000 RSI: ffffffff87a9055d RDI: 0000000000000293 RBP: ffff8801c729e240 R08: ffff8801cdf74db0 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801cdf744c0 R12: 0000000000000293 R13: 0000000000000200 R14: 0000000000000001 R15: ffffffff8931f280 dump_stack+0x26a/0x2b4 lib/dump_stack.c:118 dump_header+0x27b/0xf72 mm/oom_kill.c:441 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline] __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38f/0x5b0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259 __do_fault+0x100/0x6b0 mm/memory.c:3240 do_read_fault mm/memory.c:3652 [inline] do_fault mm/memory.c:3752 [inline] handle_pte_fault mm/memory.c:3983 [inline] __handle_mm_fault+0x3709/0x53e0 mm/memory.c:4107