RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cd940
RBP: 000000c42001f6e8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c42001f6d8 R11: 0000000000000202 R12: 0000000000000001
R13: 000000c428f384e0 R14: 0000000000000001 R15: 0000000000000000
CPU: 1 PID: 5721 Comm: syz-executor4 Not tainted 4.19.0-rc8+ #133
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: 	(detected by 0, t=10654 jiffies, g=99961, q=5)
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b6 lib/dump_stack.c:113
rcu: All QSes seen, last rcu_preempt kthread activity 10654 (4295010204-4294999550), jiffies_till_next_fqs=1, root ->qsmask 0x0
syz-fuzzer      R
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
  running task    
10440  5417   5412 0x80000008
Call Trace:
 <IRQ>
 sched_show_task.cold.83+0x2b6/0x30a kernel/sched/core.c:5296
 __alloc_pages_slowpath+0x265e/0x2d70 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
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
 update_process_times+0x2d/0x70 kernel/time/timer.c:1636
 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164
 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+0x30c/0xb03 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
 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
 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
 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518
Code: 7e 0f 85 cf fe ff ff e8 f6 e4 3f ff e9 c5 fe ff ff e8 bd 1f c4 ff 48 83 3d 2d 59 71 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 92 45
 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
RSP: 0000:ffff8801c71e7740 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801c5bbed40 RDI: 0000000000000286
RBP: ffff8801c71e77a8 R08: ffff8801c5bbe4c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 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: 41 7e 0f 85 32 ff ff ff e8 95 04 40 ff e9 28 ff ff ff e8 5c 3f c4 ff 48 83 3d cc 78 71 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 92 45
 ____bpf_clone_redirect net/core/filter.c:2080 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2067
RSP: 0000:ffff8801dae07440 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
 bpf_prog_bebbfe2050753572+0xedf/0x1000
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff1003b15e9f3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286
RBP: ffff8801dae074b0 R08: ffff8801d8af4f98 R09: 0000000000000002
R10: 0000000000000000 R11: ffff8801d8af4680 R12: ffff8801d9be7680
R13: ffff8801d9be7680 R14: 0000000000000000 R15: 0000000000000286
 __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
warn_alloc_show_mem: 1 callbacks suppressed
Mem-Info:
active_anon:48718 inactive_anon:184 isolated_anon:0
 active_file:13 inactive_file:34 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9415 slab_unreclaimable:1473251
 mapped:49154 shmem:190 pagetables:630 bounce:0
 free:13625 free_pcp:139 free_cma:0
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
Node 0 active_anon:194872kB inactive_anon:736kB active_file:52kB inactive_file:136kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:760kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 178176kB 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:24868kB min:30060kB low:37572kB high:45084kB active_anon:2048kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890740kB 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:13724kB min:37352kB low:46688kB high:56024kB active_anon:192824kB inactive_anon:736kB active_file:356kB inactive_file:36kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5376kB pagetables:2520kB bounce:0kB free_pcp:308kB local_pcp:248kB free_cma:0kB
lowmem_reserve[]:
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 0
 0 0
 __do_softirq+0x30c/0xb03 kernel/softirq.c:292
 0
Node 0 
DMA: 1*4kB 
(U) 0*8kB 
0*16kB 
1*32kB 
(U) 
2*64kB 
(U) 
1*128kB (U) 
1*256kB 
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:412
(U) 0*512kB 
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
1*1024kB (U) 
1*2048kB 
(M) 
3*4096kB (M) 
= 15908kB
Node 0 
DMA32: 
3*4kB 
(M) 
1*8kB 
(M) 
3*16kB 
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
(UM) 
 </IRQ>
3*32kB 
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
(UM) 
Code: 00 e8 c7 b0 a2 f9 e8 52 25 d2 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 7b 48 83 3d c4 5e 7f 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 d9 d1 ff ff 41 80 7d 00 00 75 6a 48 83 3d 9a 5e
4*64kB (M) 
RSP: 0000:ffff8801bb286150 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
3*128kB 
RAX: 1ffffffff1263e43 RBX: 0000000000000000 RCX: 1ffff1003b15e9ee
(M) 
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d8af4efc
4*256kB (UM) 
RBP: ffff8801bb286178 R08: ffff8801d8af4f70 R09: 0000000000000006
3*512kB 
R10: 0000000000000000 R11: ffff8801d8af4680 R12: dffffc0000000000
(M) 3*1024kB 
R13: fffffbfff1263e42 R14: ffffffff8931f218 R15: ffffffff8931f210
 retint_kernel+0x1b/0x2d
(UM) 3*2048kB 
RIP: 0010:arch_local_irq_restore+0x4a/0x52 arch/x86/include/asm/paravirt.h:788
(UM) 
Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 a9 85 14 fa 48 83 3d 19 86 85 01 00 75 07 e8 9a 40 d2 f9 0f 0b e8 93 40 d2 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 e8 81 40 d2 f9 48 c7 c2 80 9e a5 8b 4c 89
3*4096kB (M) 
RSP: 0000:ffff8801bb286238 EFLAGS: 00000293
= 24868kB
Node 0 
 ORIG_RAX: ffffffffffffff02
Normal: 871*4kB 
RAX: ffff8801d8af4680 RBX: 0000000000000293 RCX: 1ffff1003b15e9ee
(MEH) 470*8kB 
RDX: 0000000000000000 RSI: ffffffff87ac6bfd RDI: 0000000000000293
(MEH) 180*16kB 
RBP: ffff8801bb286240 R08: ffff8801d8af4f70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d8af4680 R12: 0000000000000293
(UMEH) 
R13: 0000000000000200 R14: 0000000000000000 R15: ffffffff8931f200
61*32kB (UME) 
 dump_stack+0x26a/0x2b6 lib/dump_stack.c:118
19*64kB (UMH) 
0*128kB 0*256kB 
0*512kB 0*1024kB 
0*2048kB 0*4096kB 
 dump_header+0x27b/0xf72 mm/oom_kill.c:441
= 13292kB
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
238 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
342306 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor4 cpuset=
syz4
 mems_allowed=0
CPU: 1 PID: 5721 Comm: syz-executor4 Not tainted 4.19.0-rc8+ #133
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+0x1c4/0x2b6 lib/dump_stack.c:113
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
 __alloc_pages_slowpath+0x265e/0x2d70 mm/page_alloc.c:4297
 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120
 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
 __alloc_pages_slowpath+0x230f/0x2d70 mm/page_alloc.c:4235
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 __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_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
 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
 page_cache_read mm/filemap.c:2385 [inline]
 filemap_fault+0x1594/0x25f0 mm/filemap.c:2569
 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
 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259
 __do_fault+0x100/0x6b0 mm/memory.c:3240
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x30c/0xb03 kernel/softirq.c:292
 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
 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>
 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144
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 f6 e4 3f ff e9 c5 fe ff ff e8 bd 1f c4 ff 48 83 3d 2d 59 71 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 92 45
RSP: 0000:ffff8801c71e7740 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801c5bbed40 RDI: 0000000000000286
RBP: ffff8801c71e77a8 R08: ffff8801c5bbe4c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470
 ____bpf_clone_redirect net/core/filter.c:2080 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2067
 bpf_prog_bebbfe2050753572+0xedf/0x1000
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161
RIP: 0033:0x45ddf3
Code: Bad RIP value.
RSP: 002b:000000c42001f6a0 EFLAGS: 00010202
RAX: ffffffffffffff92 RBX: 000000003b8fdc6b RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cd940
RBP: 000000c42001f6e8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c42001f6d8 R11: 0000000000000202 R12: 0000000000000001
R13: 000000c428f384e0 R14: 0000000000000001 R15: 0000000000000000
rcu: rcu_preempt kthread starved for 10654 jiffies! g99961 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: RCU grace-period kthread stack dump:
rcu_preempt     R
  running task    22872    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
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor4 cpuset=
syz4
 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804
 mems_allowed=0
CPU: 1 PID: 5721 Comm: syz-executor4 Not tainted 4.19.0-rc8+ #133
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 rcu_gp_kthread+0x9d9/0x2310 kernel/rcu/tree.c:2194
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b6 lib/dump_stack.c:113
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
 __alloc_pages_slowpath+0x265e/0x2d70 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
 kthread+0x35a/0x420 kernel/kthread.c:246
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
 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
 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+0x30c/0xb03 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 f6 e4 3f ff e9 c5 fe ff ff e8 bd 1f c4 ff 48 83 3d 2d 59 71 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 92 45
RSP: 0000:ffff8801c71e7740 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801c5bbed40 RDI: 0000000000000286
RBP: ffff8801c71e77a8 R08: ffff8801c5bbe4c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 ____bpf_clone_redirect net/core/filter.c:2080 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2067
 bpf_prog_bebbfe2050753572+0xedf/0x1000
CPU: 0 PID: 5417 Comm: syz-fuzzer Not tainted 4.19.0-rc8+ #133
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:48718 inactive_anon:184 isolated_anon:0
 active_file:13 inactive_file:34 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9415 slab_unreclaimable:1473251
 mapped:49154 shmem:190 pagetables:630 bounce:0
 free:13625 free_pcp:139 free_cma:0
Call Trace:
Node 0 active_anon:194872kB inactive_anon:736kB active_file:52kB inactive_file:136kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:760kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 178176kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 <IRQ>
Node 0 
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b6 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
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
 2819 6323
 6323
Node 0 DMA32 free:24868kB min:30060kB low:37572kB high:45084kB active_anon:2048kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890740kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:248kB free_cma:0kB
 __alloc_pages_slowpath+0x265e/0x2d70 mm/page_alloc.c:4297
lowmem_reserve[]:
 0
 0
 3503
 3503
Node 0 
Normal free:13724kB min:37352kB low:46688kB high:56024kB active_anon:192824kB inactive_anon:736kB active_file:356kB inactive_file:36kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5376kB pagetables:2520kB bounce:0kB free_pcp:308kB local_pcp:248kB 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) 
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
= 15908kB
Node 0 
DMA32: 3*4kB 
(M) 
1*8kB 
(M) 
3*16kB (UM) 
3*32kB 
(UM) 
 __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
4*64kB (M) 
3*128kB 
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
(M) 
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
4*256kB 
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
(UM) 
3*512kB 
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
(M) 
3*1024kB (UM) 
3*2048kB 
(UM) 
3*4096kB (M) 
= 24868kB
Node 0 
Normal: 
 alloc_skb include/linux/skbuff.h:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
871*4kB 
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
(MEH) 
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
470*8kB 
(MEH) 180*16kB 
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
(UMEH) 
61*32kB (UME) 
19*64kB 
(UMH) 
0*128kB 
0*256kB 
0*512kB 
0*1024kB 0*2048kB 
0*4096kB = 13292kB
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
238 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342306 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor4 cpuset=
syz4
 mems_allowed=0
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x30c/0xb03 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_enable arch/x86/include/asm/paravirt.h:798 [inline]
RIP: 0010:preempt_schedule_irq+0x7d/0x110 kernel/sched/core.c:3699
Code: 00 e8 c7 b0 a2 f9 e8 52 25 d2 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 7b 48 83 3d c4 5e 7f 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 d9 d1 ff ff 41 80 7d 00 00 75 6a 48 83 3d 9a 5e
RSP: 0000:ffff8801bb286150 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff1263e43 RBX: 0000000000000000 RCX: 1ffff1003b15e9ee
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d8af4efc
RBP: ffff8801bb286178 R08: ffff8801d8af4f70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d8af4680 R12: dffffc0000000000
R13: fffffbfff1263e42 R14: ffffffff8931f218 R15: ffffffff8931f210
 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 a9 85 14 fa 48 83 3d 19 86 85 01 00 75 07 e8 9a 40 d2 f9 0f 0b e8 93 40 d2 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 e8 81 40 d2 f9 48 c7 c2 80 9e a5 8b 4c 89
RSP: 0000:ffff8801bb286238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
RAX: ffff8801d8af4680 RBX: 0000000000000293 RCX: 1ffff1003b15e9ee
RDX: 0000000000000000 RSI: ffffffff87ac6bfd RDI: 0000000000000293
RBP: ffff8801bb286240 R08: ffff8801d8af4f70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d8af4680 R12: 0000000000000293
R13: 0000000000000200 R14: 0000000000000000 R15: ffffffff8931f200
 dump_stack+0x26a/0x2b6 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+0x230f/0x2d70 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:000000c42001f6a0 EFLAGS: 00010202
RAX: ffffffffffffff92 RBX: 000000003b8fdc6b RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cd940
RBP: 000000c42001f6e8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c42001f6d8 R11: 0000000000000202 R12: 0000000000000001
R13: 000000c428f384e0 R14: 0000000000000001 R15: 0000000000000000
CPU: 1 PID: 5721 Comm: syz-executor4 Not tainted 4.19.0-rc8+ #133
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+0x1c4/0x2b6 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+0x265e/0x2d70 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+0x30c/0xb03 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 f6 e4 3f ff e9 c5 fe ff ff e8 bd 1f c4 ff 48 83 3d 2d 59 71 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 92 45
RSP: 0000:ffff8801c71e7740 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801c5bbed40 RDI: 0000000000000286
RBP: ffff8801c71e77a8 R08: ffff8801c5bbe4c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 ____bpf_clone_redirect net/core/filter.c:2080 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2067
 bpf_prog_bebbfe2050753572+0xedf/0x1000
CPU: 0 PID: 5417 Comm: syz-fuzzer Not tainted 4.19.0-rc8+ #133
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:48718 inactive_anon:184 isolated_anon:0
 active_file:13 inactive_file:34 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9415 slab_unreclaimable:1473251
 mapped:49154 shmem:190 pagetables:630 bounce:0
 free:13625 free_pcp:139 free_cma:0
Call Trace:
Node 0 active_anon:194872kB inactive_anon:736kB active_file:52kB inactive_file:136kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:760kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 178176kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 <IRQ>
Node 0 
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b6 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
 __alloc_pages_slowpath+0x265e/0x2d70 mm/page_alloc.c:4297
Node 0 DMA32 free:24868kB min:30060kB low:37572kB high:45084kB active_anon:2048kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890740kB 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:13724kB min:37352kB low:46688kB high:56024kB active_anon:192824kB inactive_anon:736kB active_file:356kB inactive_file:36kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5376kB pagetables:2520kB bounce:0kB free_pcp:308kB local_pcp:248kB 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 
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
DMA32: 3*4kB 
(M) 
1*8kB (M) 
3*16kB 
(UM) 
3*32kB (UM) 
4*64kB (M) 
3*128kB 
 __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) 4*256kB 
(UM) 
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
3*512kB (M) 
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
3*1024kB 
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
(UM) 
3*2048kB 
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
(UM) 
3*4096kB 
(M) 
= 24868kB
Node 0 
Normal: 871*4kB 
(MEH) 
470*8kB 
 alloc_skb include/linux/skbuff.h:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
(MEH) 
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
180*16kB (UMEH) 
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
61*32kB (UME) 
19*64kB 
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
(UMH) 
0*128kB 0*256kB 
0*512kB 
0*1024kB 
0*2048kB 0*4096kB 
= 13292kB
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
238 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
342306 pages reserved
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor4 cpuset=
syz4
 mems_allowed=0
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x30c/0xb03 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_enable arch/x86/include/asm/paravirt.h:798 [inline]
RIP: 0010:preempt_schedule_irq+0x7d/0x110 kernel/sched/core.c:3699
Code: 00 e8 c7 b0 a2 f9 e8 52 25 d2 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 7b 48 83 3d c4 5e 7f 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 d9 d1 ff ff 41 80 7d 00 00 75 6a 48 83 3d 9a 5e
RSP: 0000:ffff8801bb286150 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff1263e43 RBX: 0000000000000000 RCX: 1ffff1003b15e9ee
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d8af4efc
RBP: ffff8801bb286178 R08: ffff8801d8af4f70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d8af4680 R12: dffffc0000000000
R13: fffffbfff1263e42 R14: ffffffff8931f218 R15: ffffffff8931f210
 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 a9 85 14 fa 48 83 3d 19 86 85 01 00 75 07 e8 9a 40 d2 f9 0f 0b e8 93 40 d2 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 e8 81 40 d2 f9 48 c7 c2 80 9e a5 8b 4c 89
RSP: 0000:ffff8801bb286238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
RAX: ffff8801d8af4680 RBX: 0000000000000293 RCX: 1ffff1003b15e9ee
RDX: 0000000000000000 RSI: ffffffff87ac6bfd RDI: 0000000000000293
RBP: ffff8801bb286240 R08: ffff8801d8af4f70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d8af4680 R12: 0000000000000293
R13: 0000000000000200 R14: 0000000000000000 R15: ffffffff8931f200
 dump_stack+0x26a/0x2b6 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+0x230f/0x2d70 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:000000c42001f6a0 EFLAGS: 00010202
RAX: ffffffffffffff92 RBX: 000000003b8fdc6b RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cd940
RBP: 000000c42001f6e8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c42001f6d8 R11: 0000000000000202 R12: 0000000000000001
R13: 000000c428f384e0 R14: 0000000000000001 R15: 0000000000000000
CPU: 1 PID: 5721 Comm: syz-executor4 Not tainted 4.19.0-rc8+ #133
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+0x1c4/0x2b6 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+0x265e/0x2d70 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+0x30c/0xb03 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