CPU: 1 PID: 5365 Comm: syz-executor2 Not tainted 4.19.0-rc2+ #98
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:
 <IRQ>
rcu: 	0-...!: (1 GPs behind) idle=026/1/0x4000000000000004 softirq=19944/19945 fqs=0 
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
 warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
rcu: 	
 (t=10744 jiffies g=26289 q=12)
rcu: rcu_preempt kthread starved for 10744 jiffies! g26289 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
 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 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:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
 addrconf_rs_timer+0x3c0/0x6f0 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
 kthread+0x35a/0x420 kernel/kthread.c:246
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:412
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
NMI backtrace for cpu 0
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
 </IRQ>
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 d9 68 09 fa 48 83 3d 19 6f b9 01 00 75 07 e8 9a 14 c6 f9 0f 0b e8 93 14 c6 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 4c 89 45 d0 e8 8d 68 09 fa 4c 8b 45 d0 e9
RSP: 0000:ffff8801a8c0d438 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801a8c06280 RBX: 0000000000000293 RCX: 1ffff10035180d69
RDX: 0000000000000000 RSI: ffffffff87b8ba9d RDI: 0000000000000293
RBP: ffff8801a8c0d440 R08: ffff8801a8c06b48 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801a8c06280 R12: 0000000000000293
R13: 0000000000000200 R14: 0000000000000001 R15: ffffffff897229a0
 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:952
 out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112
 __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 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_trace+0xe7/0x740 mm/slab.c:3661
 __do_kmalloc_node mm/slab.c:3681 [inline]
 __kmalloc_node_track_caller+0x33/0x70 mm/slab.c:3696
 __kmalloc_reserve.isra.39+0x41/0xe0 net/core/skbuff.c:137
 __alloc_skb+0x155/0x770 net/core/skbuff.c:205
 alloc_skb include/linux/skbuff.h:997 [inline]
 nlmsg_new include/net/netlink.h:511 [inline]
 rtmsg_ifinfo_build_skb+0x74/0x190 net/core/rtnetlink.c:3314
 rtmsg_ifinfo_event.part.31+0x45/0xe0 net/core/rtnetlink.c:3350
 rtmsg_ifinfo_event net/core/rtnetlink.c:3361 [inline]
 rtmsg_ifinfo+0x8c/0xa0 net/core/rtnetlink.c:3359
 dev_close_many+0x3be/0x860 net/core/dev.c:1502
 rollback_registered_many+0x56e/0x1240 net/core/dev.c:7932
 rollback_registered+0x1e9/0x420 net/core/dev.c:7997
 unregister_netdevice_queue+0x321/0x5e0 net/core/dev.c:9041
 unregister_netdevice include/linux/netdevice.h:2616 [inline]
 __tun_detach+0x11b8/0x15c0 drivers/net/tun.c:729
 tun_detach drivers/net/tun.c:746 [inline]
 tun_chr_close+0xe3/0x180 drivers/net/tun.c:3272
 __fput+0x385/0xa30 fs/file_table.c:278
 ____fput+0x15/0x20 fs/file_table.c:309
 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0x1ad7/0x2610 kernel/exit.c:867
 do_group_exit+0x177/0x440 kernel/exit.c:970
 get_signal+0x8b0/0x1980 kernel/signal.c:2513
 do_signal+0x9c/0x21e0 arch/x86/kernel/signal.c:816
 exit_to_usermode_loop+0x2e5/0x380 arch/x86/entry/common.c:162
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
 do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x410e10
Code: Bad RIP value.
RSP: 002b:00007fffa0c9ac88 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: fffffffffffffe00 RBX: 0000000000000000 RCX: 0000000000410e10
RDX: 0000000000000038 RSI: 0000000000930060 RDI: 00000000000000f9
RBP: 0000000000000003 R08: 00000000000003b8 R09: 0000000000004000
R10: 0000000000709640 R11: 0000000000000246 R12: 000000000000000d
R13: 000000000002fbcc R14: 00000000000000b0 R15: badc0ffeebadface
CPU: 0 PID: 12911 Comm: syz-executor4 Not tainted 4.19.0-rc2+ #98
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:46161 inactive_anon:461 isolated_anon:0
 active_file:19 inactive_file:16 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:8950 slab_unreclaimable:1482383
 mapped:8387 shmem:468 pagetables:413 bounce:0
 free:13785 free_pcp:397 free_cma:0
Call Trace:
Node 0 active_anon:184644kB inactive_anon:1844kB active_file:76kB inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:33548kB dirty:0kB writeback:0kB shmem:1872kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 169984kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 <IRQ>
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[]:
 0
 2815
 nmi_cpu_backtrace.cold.3+0x63/0xa2 lib/nmi_backtrace.c:101
 6318
 6318
 nmi_trigger_cpumask_backtrace+0x1b3/0x1ed lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
Node 0 
 trigger_single_cpu_backtrace include/linux/nmi.h:162 [inline]
 rcu_dump_cpu_stacks+0x175/0x1c2 kernel/rcu/tree.c:1340
DMA32 free:25252kB min:30036kB low:37544kB high:45052kB active_anon:148kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2887240kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]:
 0
 print_cpu_stall.cold.78+0x2d3/0x524 kernel/rcu/tree.c:1478
 0
 3503
 3503
Node 0 
Normal free:13980kB min:37376kB low:46720kB high:56064kB active_anon:184496kB inactive_anon:1844kB active_file:76kB inactive_file:64kB unevictable:0kB writepending:0kB present:4718592kB managed:3587472kB mlocked:0kB kernel_stack:5248kB pagetables:1652kB bounce:0kB free_pcp:1588kB local_pcp:1340kB free_cma:0kB
lowmem_reserve[]:
 0
 0
 0
 0
Node 0 
 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
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
Node 0 
DMA32: 
3*4kB 
(M) 
1*8kB 
(M) 
3*16kB 
(UM) 
 update_process_times+0x2d/0x70 kernel/time/timer.c:1636
3*32kB (UM) 
 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164
2*64kB 
 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274
(UM) 
 __run_hrtimer kernel/time/hrtimer.c:1398 [inline]
 __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460
5*128kB (UM) 
3*256kB 
(M) 
4*512kB 
(M) 
3*1024kB 
(UM) 
3*2048kB 
(M) 
3*4096kB 
(M) 
= 25252kB
 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518
Node 0 
 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
Normal: 
1016*4kB 
(UME) 
348*8kB 
(UME) 
167*16kB 
(UME) 
68*32kB (UME) 
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
21*64kB 
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
(M) 
Code: 40 7e 0f 85 32 ff ff ff e8 e5 d2 3e ff e9 28 ff ff ff e8 fc 2f c3 ff 48 83 3d 9c 7e b0 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 f2 7a
6*128kB 
RSP: 0000:ffff8801dac071d8 EFLAGS: 00000282
(UM) 
 ORIG_RAX: ffffffffffffff13
1*256kB 
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff100336335f6
(U) 
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000282
0*512kB 
RBP: ffff8801dac07248 R08: ffff88019b19afb0 R09: 0000000000000002
0*1024kB 
R10: 0000000000000000 R11: ffff88019b19a6c0 R12: ffff8801d9a04040
0*2048kB 
R13: ffff8801d9a04040 R14: 0000000000000000 R15: 0000000000000282
0*4096kB = 14064kB
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
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
503 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
 alloc_skb include/linux/skbuff.h:997 [inline]
 nlmsg_new include/net/netlink.h:511 [inline]
 __br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:377
343324 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor2 cpuset=syz2
 mems_allowed=0
 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:410
 br_multicast_del_pg+0x3df/0x790 net/bridge/br_multicast.c:292
 br_multicast_port_group_expired+0x189/0x1e0 net/bridge/br_multicast.c:316
 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
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline]
RIP: 0010:slab_alloc mm/slab.c:3385 [inline]
RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552
Code: 7e 0f 85 cf fe ff ff e8 46 b3 3e ff e9 c5 fe ff ff e8 5d 10 c3 ff 48 83 3d fd 5e b0 07 00 0f 84 3b 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 f2 7a
RSP: 0000:ffff88019f4c7748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88019b19af40 RDI: 0000000000000282
RBP: ffff88019f4c77b0 R08: ffff88019b19a6c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9a04040 R14: ffff8801d9a04040 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1283
 ____bpf_clone_redirect net/core/filter.c:2075 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
 bpf_prog_01d53e16fc18f1d9+0xe8f/0x1000
CPU: 1 PID: 5365 Comm: syz-executor2 Not tainted 4.19.0-rc2+ #98
syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
syz-executor4 cpuset=
 <IRQ>
syz4
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
 mems_allowed=0
 warn_alloc.cold.118+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:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
 addrconf_rs_timer+0x3c0/0x6f0 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
 </IRQ>
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 d9 68 09 fa 48 83 3d 19 6f b9 01 00 75 07 e8 9a 14 c6 f9 0f 0b e8 93 14 c6 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 4c 89 45 d0 e8 8d 68 09 fa 4c 8b 45 d0 e9
RSP: 0000:ffff8801a8c0d438 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801a8c06280 RBX: 0000000000000293 RCX: 1ffff10035180d69
RDX: 0000000000000000 RSI: ffffffff87b8ba9d RDI: 0000000000000293
RBP: ffff8801a8c0d440 R08: ffff8801a8c06b48 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801a8c06280 R12: 0000000000000293
R13: 0000000000000200 R14: 0000000000000001 R15: ffffffff897229a0
 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:952
 out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112
 __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 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_trace+0xe7/0x740 mm/slab.c:3661
 __do_kmalloc_node mm/slab.c:3681 [inline]
 __kmalloc_node_track_caller+0x33/0x70 mm/slab.c:3696
 __kmalloc_reserve.isra.39+0x41/0xe0 net/core/skbuff.c:137
 __alloc_skb+0x155/0x770 net/core/skbuff.c:205
 alloc_skb include/linux/skbuff.h:997 [inline]
 nlmsg_new include/net/netlink.h:511 [inline]
 rtmsg_ifinfo_build_skb+0x74/0x190 net/core/rtnetlink.c:3314
 rtmsg_ifinfo_event.part.31+0x45/0xe0 net/core/rtnetlink.c:3350
 rtmsg_ifinfo_event net/core/rtnetlink.c:3361 [inline]
 rtmsg_ifinfo+0x8c/0xa0 net/core/rtnetlink.c:3359
 dev_close_many+0x3be/0x860 net/core/dev.c:1502
 rollback_registered_many+0x56e/0x1240 net/core/dev.c:7932
 rollback_registered+0x1e9/0x420 net/core/dev.c:7997
 unregister_netdevice_queue+0x321/0x5e0 net/core/dev.c:9041
 unregister_netdevice include/linux/netdevice.h:2616 [inline]
 __tun_detach+0x11b8/0x15c0 drivers/net/tun.c:729
 tun_detach drivers/net/tun.c:746 [inline]
 tun_chr_close+0xe3/0x180 drivers/net/tun.c:3272
 __fput+0x385/0xa30 fs/file_table.c:278
 ____fput+0x15/0x20 fs/file_table.c:309
 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0x1ad7/0x2610 kernel/exit.c:867
 do_group_exit+0x177/0x440 kernel/exit.c:970
 get_signal+0x8b0/0x1980 kernel/signal.c:2513
 do_signal+0x9c/0x21e0 arch/x86/kernel/signal.c:816
 exit_to_usermode_loop+0x2e5/0x380 arch/x86/entry/common.c:162
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
 do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x410e10
Code: Bad RIP value.
RSP: 002b:00007fffa0c9ac88 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: fffffffffffffe00 RBX: 0000000000000000 RCX: 0000000000410e10
RDX: 0000000000000038 RSI: 0000000000930060 RDI: 00000000000000f9
RBP: 0000000000000003 R08: 00000000000003b8 R09: 0000000000004000
R10: 0000000000709640 R11: 0000000000000246 R12: 000000000000000d
R13: 000000000002fbcc R14: 00000000000000b0 R15: badc0ffeebadface
Mem-Info:
CPU: 0 PID: 12911 Comm: syz-executor4 Not tainted 4.19.0-rc2+ #98
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
active_anon:46161 inactive_anon:461 isolated_anon:0
 active_file:19 inactive_file:16 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:8950 slab_unreclaimable:1482383
 mapped:8387 shmem:468 pagetables:413 bounce:0
 free:13785 free_pcp:397 free_cma:0
Call Trace:
Node 0 active_anon:184644kB inactive_anon:1844kB active_file:76kB inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:33548kB dirty:0kB writeback:0kB shmem:1872kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 169984kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 <IRQ>
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.118+0xb7/0x1bd mm/page_alloc.c:3426
 0
 2815 6318
 6318
Node 0 
DMA32 free:25252kB min:30036kB low:37544kB high:45052kB active_anon:148kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2887240kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB 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:13980kB min:37376kB low:46720kB high:56064kB active_anon:184496kB inactive_anon:1844kB active_file:76kB inactive_file:64kB unevictable:0kB writepending:0kB present:4718592kB managed:3587472kB mlocked:0kB kernel_stack:5248kB pagetables:1652kB bounce:0kB free_pcp:1588kB local_pcp:1340kB 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) 
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
1*256kB (U) 
0*512kB 1*1024kB 
(U) 
1*2048kB 
(M) 
3*4096kB 
(M) 
= 15908kB
Node 0 
 __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
DMA32: 3*4kB 
(M) 
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
1*8kB 
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
(M) 
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
3*16kB 
(UM) 
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
3*32kB (UM) 
2*64kB (UM) 
5*128kB 
(UM) 
3*256kB 
(M) 
4*512kB (M) 
 alloc_skb include/linux/skbuff.h:997 [inline]
 nlmsg_new include/net/netlink.h:511 [inline]
 __br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:377
3*1024kB 
(UM) 3*2048kB 
(M) 
3*4096kB 
(M) 
= 25252kB
Node 0 
Normal: 1016*4kB 
(UME) 
348*8kB (UME) 
 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:410
167*16kB (UME) 
68*32kB 
 br_multicast_del_pg+0x3df/0x790 net/bridge/br_multicast.c:292
(UME) 
21*64kB 
(M) 
6*128kB 
 br_multicast_port_group_expired+0x189/0x1e0 net/bridge/br_multicast.c:316
(UM) 
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
1*256kB 
(U) 0*512kB 
0*1024kB 
0*2048kB 
0*4096kB 
= 14064kB
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
503 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
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
343324 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor2 cpuset=
syz2
 mems_allowed=0
 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
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline]
RIP: 0010:slab_alloc mm/slab.c:3385 [inline]
RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552
Code: 7e 0f 85 cf fe ff ff e8 46 b3 3e ff e9 c5 fe ff ff e8 5d 10 c3 ff 48 83 3d fd 5e b0 07 00 0f 84 3b 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 f2 7a
RSP: 0000:ffff88019f4c7748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88019b19af40 RDI: 0000000000000282
RBP: ffff88019f4c77b0 R08: ffff88019b19a6c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9a04040 R14: ffff8801d9a04040 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1283
 ____bpf_clone_redirect net/core/filter.c:2075 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
 bpf_prog_01d53e16fc18f1d9+0xe8f/0x1000
CPU: 1 PID: 5365 Comm: syz-executor2 Not tainted 4.19.0-rc2+ #98
syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
syz-executor4 cpuset=
Call Trace:
syz4
 <IRQ>
 mems_allowed=0
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
 warn_alloc.cold.118+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:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
 addrconf_rs_timer+0x3c0/0x6f0 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
 </IRQ>
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 d9 68 09 fa 48 83 3d 19 6f b9 01 00 75 07 e8 9a 14 c6 f9 0f 0b e8 93 14 c6 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 4c 89 45 d0 e8 8d 68 09 fa 4c 8b 45 d0 e9
RSP: 0000:ffff8801a8c0d438 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801a8c06280 RBX: 0000000000000293 RCX: 1ffff10035180d69
RDX: 0000000000000000 RSI: ffffffff87b8ba9d RDI: 0000000000000293
RBP: ffff8801a8c0d440 R08: ffff8801a8c06b48 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801a8c06280 R12: 0000000000000293
R13: 0000000000000200 R14: 0000000000000001 R15: ffffffff897229a0
 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:952
 out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112
 __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 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_trace+0xe7/0x740 mm/slab.c:3661
 __do_kmalloc_node mm/slab.c:3681 [inline]
 __kmalloc_node_track_caller+0x33/0x70 mm/slab.c:3696
 __kmalloc_reserve.isra.39+0x41/0xe0 net/core/skbuff.c:137
 __alloc_skb+0x155/0x770 net/core/skbuff.c:205
 alloc_skb include/linux/skbuff.h:997 [inline]
 nlmsg_new include/net/netlink.h:511 [inline]
 rtmsg_ifinfo_build_skb+0x74/0x190 net/core/rtnetlink.c:3314
 rtmsg_ifinfo_event.part.31+0x45/0xe0 net/core/rtnetlink.c:3350
 rtmsg_ifinfo_event net/core/rtnetlink.c:3361 [inline]
 rtmsg_ifinfo+0x8c/0xa0 net/core/rtnetlink.c:3359
 dev_close_many+0x3be/0x860 net/core/dev.c:1502
 rollback_registered_many+0x56e/0x1240 net/core/dev.c:7932
 rollback_registered+0x1e9/0x420 net/core/dev.c:7997
 unregister_netdevice_queue+0x321/0x5e0 net/core/dev.c:9041
 unregister_netdevice include/linux/netdevice.h:2616 [inline]
 __tun_detach+0x11b8/0x15c0 drivers/net/tun.c:729
 tun_detach drivers/net/tun.c:746 [inline]
 tun_chr_close+0xe3/0x180 drivers/net/tun.c:3272
 __fput+0x385/0xa30 fs/file_table.c:278
 ____fput+0x15/0x20 fs/file_table.c:309
 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0x1ad7/0x2610 kernel/exit.c:867
 do_group_exit+0x177/0x440 kernel/exit.c:970
 get_signal+0x8b0/0x1980 kernel/signal.c:2513
 do_signal+0x9c/0x21e0 arch/x86/kernel/signal.c:816
 exit_to_usermode_loop+0x2e5/0x380 arch/x86/entry/common.c:162
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
 do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x410e10
Code: Bad RIP value.
RSP: 002b:00007fffa0c9ac88 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: fffffffffffffe00 RBX: 0000000000000000 RCX: 0000000000410e10
RDX: 0000000000000038 RSI: 0000000000930060 RDI: 00000000000000f9
RBP: 0000000000000003 R08: 00000000000003b8 R09: 0000000000004000
R10: 0000000000709640 R11: 0000000000000246 R12: 000000000000000d
R13: 000000000002fbcc R14: 00000000000000b0 R15: badc0ffeebadface
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 0 PID: 12911 Comm: syz-executor4 Not tainted 4.19.0-rc2+ #98
Mem-Info:
active_anon:46161 inactive_anon:461 isolated_anon:0
 active_file:19 inactive_file:16 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:8950 slab_unreclaimable:1482383
 mapped:8387 shmem:468 pagetables:413 bounce:0
 free:13785 free_pcp:397 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:184644kB inactive_anon:1844kB active_file:76kB inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:33548kB dirty:0kB writeback:0kB shmem:1872kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 169984kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 0 
 <IRQ>
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 2815
 warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426
 6318
 6318
Node 0 DMA32 free:25252kB min:30036kB low:37544kB high:45052kB active_anon:148kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2887240kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 3503 3503
Node 0 Normal free:13980kB min:37376kB low:46720kB high:56064kB active_anon:184496kB inactive_anon:1844kB active_file:76kB inactive_file:64kB unevictable:0kB writepending:0kB present:4718592kB managed:3587472kB mlocked:0kB kernel_stack:5248kB pagetables:1652kB bounce:0kB free_pcp:1588kB local_pcp:1340kB 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 (M) 3*4096kB (M) = 15908kB
Node 0 DMA32: 3*4kB (M) 1*8kB (M) 3*16kB (UM) 3*32kB (UM) 2*64kB (UM) 5*128kB (UM) 3*256kB (M) 4*512kB (M) 3*1024kB (UM) 3*2048kB (M) 3*4096kB (M) = 25252kB
Node 0 Normal: 1016*4kB (UME) 348*8kB (UME) 167*16kB (UME) 68*32kB (UME) 21*64kB (M) 6*128kB (UM) 1*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB 
= 14064kB
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
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
503 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
343324 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor2 cpuset=
syz2
 mems_allowed=0
 __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:997 [inline]
 nlmsg_new include/net/netlink.h:511 [inline]
 __br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:377
 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:410
 br_multicast_del_pg+0x3df/0x790 net/bridge/br_multicast.c:292
 br_multicast_port_group_expired+0x189/0x1e0 net/bridge/br_multicast.c:316
 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
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline]
RIP: 0010:slab_alloc mm/slab.c:3385 [inline]
RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552
Code: 7e 0f 85 cf fe ff ff e8 46 b3 3e ff e9 c5 fe ff ff e8 5d 10 c3 ff 48 83 3d fd 5e b0 07 00 0f 84 3b 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 f2 7a
RSP: 0000:ffff88019f4c7748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88019b19af40 RDI: 0000000000000282
RBP: ffff88019f4c77b0 R08: ffff88019b19a6c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9a04040 R14: ffff8801d9a04040 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1283
 ____bpf_clone_redirect net/core/filter.c:2075 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
 bpf_prog_01d53e16fc18f1d9+0xe8f/0x1000
CPU: 1 PID: 5365 Comm: syz-executor2 Not tainted 4.19.0-rc2+ #98
syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
syz-executor4 cpuset=
Call Trace:
syz4
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
 mems_allowed=0
 warn_alloc.cold.118+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:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
 addrconf_rs_timer+0x3c0/0x6f0 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
 </IRQ>
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 d9 68 09 fa 48 83 3d 19 6f b9 01 00 75 07 e8 9a 14 c6 f9 0f 0b e8 93 14 c6 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 4c 89 45 d0 e8 8d 68 09 fa 4c 8b 45 d0 e9
RSP: 0000:ffff8801a8c0d438 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801a8c06280 RBX: 0000000000000293 RCX: 1ffff10035180d69
RDX: 0000000000000000 RSI: ffffffff87b8ba9d RDI: 0000000000000293
RBP: ffff8801a8c0d440 R08: ffff8801a8c06b48 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801a8c06280 R12: 0000000000000293
R13: 0000000000000200 R14: 0000000000000001 R15: ffffffff897229a0
 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:952
 out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112
 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
 __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235