RDX: 000000c420049ac0 RSI: 000000c420049bf0 RDI: 0000000000000011
RBP: 000000c420022f08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 000000c42005c168
R13: 00000000000000f1 R14: 0000000000000011 R15: 0000000000000000
CPU: 0 PID: 7800 Comm: syz-executor2 Not tainted 4.19.0-rc6+ #119
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
rcu: 	
 <IRQ>
(detected by 1, t=10514 jiffies, g=11681, q=14)
rcu: All QSes seen, last rcu_preempt kthread activity 10344 (4294968392-4294958048), jiffies_till_next_fqs=1, root ->qsmask 0x0
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
syz-fuzzer      R
  running task    
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
12944  5806   5802 0x80000008
Call Trace:
 <IRQ>
 sched_show_task.cold.83+0x2b6/0x30a kernel/sched/core.c:5296
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
 print_other_cpu_stall.cold.79+0xa83/0xba5 kernel/rcu/tree.c:1430
 check_cpu_stall kernel/rcu/tree.c:1557 [inline]
 __rcu_pending kernel/rcu/tree.c:3276 [inline]
 rcu_pending kernel/rcu/tree.c:3319 [inline]
 rcu_check_callbacks+0xafc/0x1990 kernel/rcu/tree.c:2665
 __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
 update_process_times+0x2d/0x70 kernel/time/timer.c:1636
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274
 __run_hrtimer kernel/time/hrtimer.c:1398 [inline]
 __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518
 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
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
 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+0x247/0x730 mm/slab.c:3642
Code: 3f 7e 0f 85 32 ff ff ff e8 c5 7e 3e ff e9 28 ff ff ff e8 2c e2 c2 ff 48 83 3d 7c f3 6f 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 62 23
RSP: 0000:ffff8801daf07450 EFLAGS: 00000286
 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: ffffffff8184e1ca
RDX: 0000000000000004 RSI: ffffffff8184e1e4 RDI: 0000000000000286
RBP: ffff8801daf074c0 R08: ffff8801d838c080 R09: fffffbfff12812c4
R10: ffff8801daf06098 R11: ffffffff89409623 R12: ffff8801d9be8800
R13: ffff8801d9be8800 R14: 0000000000000000 R15: 0000000000000286
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x30b/0xad8 kernel/softirq.c:292
 __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+0x314/0x690 net/ipv6/addrconf.c:3836
 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
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
 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_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 53 4a 3e ff e9 28 ff ff ff e8 ba ad c2 ff 48 83 3d 0a bf 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 62 23
RSP: 0018:ffff88019a29f4a8 EFLAGS: 00000286
 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: ffffc9000627e000
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
RDX: 0000000000000004 RSI: ffffffff8184e1e4 RDI: 0000000000000286
RBP: ffff88019a29f520 R08: ffff8801ba14e480 R09: fffffbfff12720c0
R10: ffff88019a29e0f0 R11: ffffffff89390603 R12: ffff8801da800ac0
R13: ffff8801da800ac0 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
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x30b/0xad8 kernel/softirq.c:292
 skb_ensure_writable+0x3dd/0x640 net/core/skbuff.c:5068
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:412
 __bpf_try_make_writable net/core/filter.c:1637 [inline]
 bpf_try_make_writable net/core/filter.c:1643 [inline]
 bpf_try_make_head_writable net/core/filter.c:1651 [inline]
 ____bpf_clone_redirect net/core/filter.c:2088 [inline]
 bpf_clone_redirect+0x14a/0x490 net/core/filter.c:2066
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
 bpf_prog_3d1649e183dc2cc1+0xca3/0x1000
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
 </IRQ>
RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:798 [inline]
RIP: 0010:preempt_schedule_irq+0x7d/0x110 kernel/sched/core.c:3699
Code: 00 e8 97 f5 a3 f9 e8 d2 63 d3 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 7b 48 83 3d 24 75 80 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f9 d1 ff ff 41 80 7d 00 00 75 6a 48 83 3d fa 74
RSP: 0000:ffff8801bbdd6150 EFLAGS: 00000286
 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff1263e53 RBX: 0000000000000000 RCX: ffffffff8184e1ca
RDX: 0000000000000004 RSI: ffffffff8184e1e4 RDI: ffffffff896fe740
RBP: ffff8801bbdd6178 R08: ffff8801d838c080 R09: ffffed003b5e5979
R10: ffffed003b5e5979 R11: ffff8801daf2cbcb R12: dffffc0000000000
R13: fffffbfff1263e52 R14: ffffffff8931f298 R15: ffffffff8931f290
 retint_kernel+0x1b/0x2d
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 79 21 17 fa 48 83 3d 99 9c 86 01 00 75 07 e8 9a 7f d3 f9 0f 0b e8 93 7f d3 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 4c 89 45 d0 e8 2d 21 17 fa 4c 8b 45 d0 e9
RSP: 0000:ffff8801bbdd6238 EFLAGS: 00000293
 ORIG_RAX: ffffffffffffff02
RAX: ffff8801d838c080 RBX: 0000000000000293 RCX: ffffffff8184e1ca
RDX: 0000000000000000 RSI: ffffffff87ab55fd RDI: 0000000000000293
RBP: ffff8801bbdd6240 R08: ffff8801d838c080 R09: fffffbfff13d9700
R10: fffffbfff13d9700 R11: 0000000000000003 R12: 0000000000000293
R13: 0000000000000200 R14: 0000000000000001 R15: ffffffff8931f280
 dump_stack+0x26a/0x2b4 lib/dump_stack.c:118
warn_alloc_show_mem: 1 callbacks suppressed
Mem-Info:
 dump_header+0x27b/0xf72 mm/oom_kill.c:441
active_anon:46475 inactive_anon:4207 isolated_anon:0
 active_file:17 inactive_file:13 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:8782 slab_unreclaimable:1485678
 mapped:8194 shmem:4214 pagetables:396 bounce:0
 free:13756 free_pcp:276 free_cma:0
Node 0 active_anon:185900kB inactive_anon:16828kB active_file:68kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32776kB dirty:0kB writeback:0kB shmem:16856kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
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
lowmem_reserve[]:
 0
 2819
 6323
 6323
Node 0 
DMA32 free:25168kB min:30060kB low:37572kB high:45084kB active_anon:10240kB 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:248kB free_cma:0kB
lowmem_reserve[]:
 0
 0
 3503
 3503
Node 0 
Normal free:13948kB min:37352kB low:46688kB high:56024kB active_anon:175660kB inactive_anon:16828kB active_file:68kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5056kB pagetables:1584kB bounce:0kB free_pcp:856kB local_pcp:320kB free_cma:0kB
lowmem_reserve[]:
 0
 0
 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
 0
 0
Node 0 
DMA: 
1*4kB 
(U) 
0*8kB 
0*16kB 
1*32kB 
(U) 
2*64kB 
 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120
(U) 
1*128kB 
(U) 
1*256kB 
(U) 
0*512kB 
 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
 __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235
1*1024kB 
(U) 
1*2048kB 
(M) 
3*4096kB 
(M) 
= 15908kB
Node 0 
DMA32: 
2*4kB 
(M) 
1*8kB 
(M) 
2*16kB 
(M) 
3*32kB 
(MH) 
5*64kB 
(MH) 
3*128kB 
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
(M) 
5*256kB 
(UMH) 
5*512kB 
(UMH) 
4*1024kB 
(UMH) 
2*2048kB 
 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093
(M) 
3*4096kB 
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x38f/0x5b0 mm/filemap.c:946
(M) 
= 25168kB
Node 0 
Normal: 
1081*4kB 
(UMEH) 
 page_cache_read mm/filemap.c:2385 [inline]
 filemap_fault+0x1594/0x25f0 mm/filemap.c:2569
387*8kB 
(ME) 
152*16kB 
(UME) 
54*32kB 
(UME) 
21*64kB 
(UM) 
0*128kB 
0*256kB 
2*512kB 
(U) 
0*1024kB 
0*2048kB 
0*4096kB 
= 13948kB
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
4244 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
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259
 __do_fault+0x100/0x6b0 mm/memory.c:3240
syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor2 cpuset=
syz2
 mems_allowed=0
CPU: 0 PID: 7800 Comm: syz-executor2 Not tainted 4.19.0-rc6+ #119
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 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
 __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
 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
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161
RIP: 0033:0x45db60
Code: Bad RIP value.
RSP: 002b:000000c420049ab8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
 __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
RDX: 000000c420049ac0 RSI: 000000c420049bf0 RDI: 0000000000000011
RBP: 000000c420022f08 R08: 0000000000000000 R09: 0000000000000000
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
R10: 0000000000000000 R11: 0000000000000286 R12: 000000c42005c168
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
R13: 00000000000000f1 R14: 0000000000000011 R15: 0000000000000000
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
rcu: rcu_preempt kthread starved for 10344 jiffies! g11681 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: RCU grace-period kthread stack dump:
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
rcu_preempt     R
  running task    
23272    10      2 0x80000000
Call Trace:
 context_switch kernel/sched/core.c:2825 [inline]
 __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473
 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+0x314/0x690 net/ipv6/addrconf.c:3836
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
 schedule+0xfe/0x460 kernel/sched/core.c:3517
 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804
 rcu_gp_kthread+0x9d9/0x2310 kernel/rcu/tree.c:2194
 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_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 53 4a 3e ff e9 28 ff ff ff e8 ba ad c2 ff 48 83 3d 0a bf 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 62 23
RSP: 0018:ffff88019a29f4a8 EFLAGS: 00000286
 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: ffffc9000627e000
RDX: 0000000000000004 RSI: ffffffff8184e1e4 RDI: 0000000000000286
RBP: ffff88019a29f520 R08: ffff8801ba14e480 R09: fffffbfff12720c0
R10: ffff88019a29e0f0 R11: ffffffff89390603 R12: ffff8801da800ac0
R13: ffff8801da800ac0 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
 kthread+0x35a/0x420 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413
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
 skb_ensure_writable+0x3dd/0x640 net/core/skbuff.c:5068
 __bpf_try_make_writable net/core/filter.c:1637 [inline]
 bpf_try_make_writable net/core/filter.c:1643 [inline]
 bpf_try_make_head_writable net/core/filter.c:1651 [inline]
 ____bpf_clone_redirect net/core/filter.c:2088 [inline]
 bpf_clone_redirect+0x14a/0x490 net/core/filter.c:2066
 bpf_prog_3d1649e183dc2cc1+0xca3/0x1000
CPU: 1 PID: 5806 Comm: syz-fuzzer Not tainted 4.19.0-rc6+ #119
Mem-Info:
active_anon:46475 inactive_anon:4207 isolated_anon:0
 active_file:17 inactive_file:13 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:8782 slab_unreclaimable:1485678
 mapped:8194 shmem:4214 pagetables:396 bounce:0
 free:13756 free_pcp:276 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:185900kB inactive_anon:16828kB active_file:68kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32776kB dirty:0kB writeback:0kB shmem:16856kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB 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
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
 2819
 6323
 6323
Node 0 DMA32 free:25168kB min:30060kB low:37572kB high:45084kB active_anon:10240kB 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:248kB free_cma:0kB
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
lowmem_reserve[]:
 0
 0
 3503
 3503
Node 0 
Normal free:13948kB min:37352kB low:46688kB high:56024kB active_anon:175660kB inactive_anon:16828kB active_file:68kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5056kB pagetables:1584kB bounce:0kB free_pcp:856kB local_pcp:320kB 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) 
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
0*512kB 
1*1024kB 
(U) 
1*2048kB 
(M) 
3*4096kB 
 __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
(M) 
= 15908kB
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
Node 0 
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
DMA32: 
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
2*4kB 
(M) 
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
1*8kB 
(M) 
2*16kB 
(M) 
3*32kB 
(MH) 
5*64kB 
 alloc_skb include/linux/skbuff.h:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
(MH) 
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
3*128kB 
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
(M) 
5*256kB 
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
(UMH) 
5*512kB 
(UMH) 
4*1024kB 
(UMH) 
2*2048kB 
(M) 
3*4096kB 
(M) 
= 25168kB
Node 0 
Normal: 
1081*4kB 
(UMEH) 
387*8kB 
(ME) 
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
152*16kB 
(UME) 
54*32kB 
(UME) 
21*64kB 
(UM) 
0*128kB 0*256kB 
2*512kB 
(U) 
0*1024kB 
0*2048kB 
0*4096kB 
= 13948kB
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
4244 total pagecache pages
0 pages in swap cache
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
 __do_softirq+0x30b/0xad8 kernel/softirq.c:292
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342307 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
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:412
 mems_allowed=0
 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_enable arch/x86/include/asm/paravirt.h:798 [inline]
RIP: 0010:preempt_schedule_irq+0x7d/0x110 kernel/sched/core.c:3699
Code: 00 e8 97 f5 a3 f9 e8 d2 63 d3 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 7b 48 83 3d 24 75 80 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f9 d1 ff ff 41 80 7d 00 00 75 6a 48 83 3d fa 74
RSP: 0000:ffff8801bbdd6150 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff1263e53 RBX: 0000000000000000 RCX: ffffffff8184e1ca
RDX: 0000000000000004 RSI: ffffffff8184e1e4 RDI: ffffffff896fe740
RBP: ffff8801bbdd6178 R08: ffff8801d838c080 R09: ffffed003b5e5979
R10: ffffed003b5e5979 R11: ffff8801daf2cbcb R12: dffffc0000000000
R13: fffffbfff1263e52 R14: ffffffff8931f298 R15: ffffffff8931f290
 retint_kernel+0x1b/0x2d
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 79 21 17 fa 48 83 3d 99 9c 86 01 00 75 07 e8 9a 7f d3 f9 0f 0b e8 93 7f d3 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 4c 89 45 d0 e8 2d 21 17 fa 4c 8b 45 d0 e9
RSP: 0000:ffff8801bbdd6238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
RAX: ffff8801d838c080 RBX: 0000000000000293 RCX: ffffffff8184e1ca
RDX: 0000000000000000 RSI: ffffffff87ab55fd RDI: 0000000000000293
RBP: ffff8801bbdd6240 R08: ffff8801d838c080 R09: fffffbfff13d9700
R10: fffffbfff13d9700 R11: 0000000000000003 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: 0033:0x45db60
Code: Bad RIP value.
RSP: 002b:000000c420049ab8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
RDX: 000000c420049ac0 RSI: 000000c420049bf0 RDI: 0000000000000011
RBP: 000000c420022f08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 000000c42005c168
R13: 00000000000000f1 R14: 0000000000000011 R15: 0000000000000000
CPU: 0 PID: 7800 Comm: syz-executor2 Not tainted 4.19.0-rc6+ #119
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:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
syz-fuzzer: 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-fuzzer cpuset=
/
 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: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+0x314/0x690 net/ipv6/addrconf.c:3836
 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_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 53 4a 3e ff e9 28 ff ff ff e8 ba ad c2 ff 48 83 3d 0a bf 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 62 23
RSP: 0018:ffff88019a29f4a8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: ffffc9000627e000
RDX: 0000000000000004 RSI: ffffffff8184e1e4 RDI: 0000000000000286
RBP: ffff88019a29f520 R08: ffff8801ba14e480 R09: fffffbfff12720c0
R10: ffff88019a29e0f0 R11: ffffffff89390603 R12: ffff8801da800ac0
R13: ffff8801da800ac0 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:5068
 __bpf_try_make_writable net/core/filter.c:1637 [inline]
 bpf_try_make_writable net/core/filter.c:1643 [inline]
 bpf_try_make_head_writable net/core/filter.c:1651 [inline]
 ____bpf_clone_redirect net/core/filter.c:2088 [inline]
 bpf_clone_redirect+0x14a/0x490 net/core/filter.c:2066
 bpf_prog_3d1649e183dc2cc1+0xca3/0x1000
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 5806 Comm: syz-fuzzer Not tainted 4.19.0-rc6+ #119
Mem-Info:
active_anon:46475 inactive_anon:4207 isolated_anon:0
 active_file:17 inactive_file:13 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:8782 slab_unreclaimable:1485678
 mapped:8194 shmem:4214 pagetables:396 bounce:0
 free:13756 free_pcp:276 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:185900kB inactive_anon:16828kB active_file:68kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32776kB dirty:0kB writeback:0kB shmem:16856kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB 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
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
 2819
 6323
 6323
Node 0 
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
DMA32 free:25168kB min:30060kB low:37572kB high:45084kB active_anon:10240kB 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:248kB free_cma:0kB
lowmem_reserve[]:
 0
 0
 3503
 3503
Node 0 Normal free:13948kB min:37352kB low:46688kB high:56024kB active_anon:175660kB inactive_anon:16828kB active_file:68kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5056kB pagetables:1584kB bounce:0kB free_pcp:856kB local_pcp:320kB 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 
 __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
(M) 
3*4096kB 
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
(M) 
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
= 15908kB
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
Node 0 
DMA32: 
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
2*4kB 
(M) 
1*8kB 
(M) 
2*16kB 
(M) 
3*32kB 
 alloc_skb include/linux/skbuff.h:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
(MH) 
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
5*64kB 
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
(MH) 
3*128kB 
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
(M) 
5*256kB 
(UMH) 
5*512kB 
(UMH) 
4*1024kB 
(UMH) 
2*2048kB 
(M) 
3*4096kB 
(M) 
= 25168kB
Node 0 
Normal: 
1081*4kB 
(UMEH) 
387*8kB 
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
(ME) 
152*16kB 
(UME) 54*32kB 
(UME) 
21*64kB 
(UM) 
0*128kB 0*256kB 
2*512kB 
(U) 
0*1024kB 
0*2048kB 
0*4096kB 
= 13948kB
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
4244 total pagecache pages
0 pages in swap cache
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
 __do_softirq+0x30b/0xad8 kernel/softirq.c:292
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342307 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
 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_enable arch/x86/include/asm/paravirt.h:798 [inline]
RIP: 0010:preempt_schedule_irq+0x7d/0x110 kernel/sched/core.c:3699
Code: 00 e8 97 f5 a3 f9 e8 d2 63 d3 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 7b 48 83 3d 24 75 80 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f9 d1 ff ff 41 80 7d 00 00 75 6a 48 83 3d fa 74
RSP: 0000:ffff8801bbdd6150 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff1263e53 RBX: 0000000000000000 RCX: ffffffff8184e1ca
RDX: 0000000000000004 RSI: ffffffff8184e1e4 RDI: ffffffff896fe740
RBP: ffff8801bbdd6178 R08: ffff8801d838c080 R09: ffffed003b5e5979
R10: ffffed003b5e5979 R11: ffff8801daf2cbcb R12: dffffc0000000000
R13: fffffbfff1263e52 R14: ffffffff8931f298 R15: ffffffff8931f290
 retint_kernel+0x1b/0x2d
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 79 21 17 fa 48 83 3d 99 9c 86 01 00 75 07 e8 9a 7f d3 f9 0f 0b e8 93 7f d3 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 4c 89 45 d0 e8 2d 21 17 fa 4c 8b 45 d0 e9
RSP: 0000:ffff8801bbdd6238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
RAX: ffff8801d838c080 RBX: 0000000000000293 RCX: ffffffff8184e1ca
RDX: 0000000000000000 RSI: ffffffff87ab55fd RDI: 0000000000000293
RBP: ffff8801bbdd6240 R08: ffff8801d838c080 R09: fffffbfff13d9700
R10: fffffbfff13d9700 R11: 0000000000000003 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: 0033:0x45db60
Code: Bad RIP value.
RSP: 002b:000000c420049ab8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
RDX: 000000c420049ac0 RSI: 000000c420049bf0 RDI: 0000000000000011
RBP: 000000c420022f08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 000000c42005c168
R13: 00000000000000f1 R14: 0000000000000011 R15: 0000000000000000
CPU: 0 PID: 7800 Comm: syz-executor2 Not tainted 4.19.0-rc6+ #119
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:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
syz-fuzzer: 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-fuzzer cpuset=
/
 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: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+0x314/0x690 net/ipv6/addrconf.c:3836
 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_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 53 4a 3e ff e9 28 ff ff ff e8 ba ad c2 ff 48 83 3d 0a bf 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 62 23
RSP: 0018:ffff88019a29f4a8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: ffffc9000627e000
RDX: 0000000000000004 RSI: ffffffff8184e1e4 RDI: 0000000000000286
RBP: ffff88019a29f520 R08: ffff8801ba14e480 R09: fffffbfff12720c0
R10: ffff88019a29e0f0 R11: ffffffff89390603 R12: ffff8801da800ac0
R13: ffff8801da800ac0 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:5068
 __bpf_try_make_writable net/core/filter.c:1637 [inline]
 bpf_try_make_writable net/core/filter.c:1643 [inline]
 bpf_try_make_head_writable net/core/filter.c:1651 [inline]
 ____bpf_clone_redirect net/core/filter.c:2088 [inline]
 bpf_clone_redirect+0x14a/0x490 net/core/filter.c:2066
 bpf_prog_3d1649e183dc2cc1+0xca3/0x1000
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 5806 Comm: syz-fuzzer Not tainted 4.19.0-rc6+ #119
Mem-Info:
active_anon:46475 inactive_anon:4207 isolated_anon:0
 active_file:17 inactive_file:13 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:8782 slab_unreclaimable:1485678
 mapped:8194 shmem:4214 pagetables:396 bounce:0
 free:13756 free_pcp:276 free_cma:0