CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
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=10741 jiffies, g=17693, q=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10735 (4294968901-4294958166), jiffies_till_next_fqs=1, root ->qsmask 0x0
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
syz-executor4 R running task 20712 10267 6159 0x8010000c
Call Trace:
warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
sched_show_task.cold.84+0x2b6/0x30a kernel/sched/core.c:5293
__alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
print_other_cpu_stall.cold.66+0x7dd/0x8bb kernel/rcu/tree.c:1286
check_cpu_stall kernel/rcu/tree.c:1415 [inline]
rcu_pending kernel/rcu/tree.c:2961 [inline]
rcu_check_callbacks+0xfd7/0x13f0 kernel/rcu/tree.c:2506
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
__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+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 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
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
hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1034 [inline]
smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1059
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [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 75 1d 3e ff e9 28 ff ff ff e8 ec 52 c3 ff 48 83 3d f4 9b 8f 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 d2 ac
RSP: 0000:ffff8801dae07450 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff10036c57151
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286
RBP: ffff8801dae074c0 R08: ffff8801b62b8a88 R09: 0000000000000002
__do_softirq+0x308/0xb7e kernel/softirq.c:292
R10: 0000000000000000 R11: ffff8801b62b81c0 R12: ffff8801d9a1c0c0
R13: ffff8801d9a1c0c0 R14: 0000000000000000 R15: 0000000000000286
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
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
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
RIP: 0010:bytes_is_nonzero mm/kasan/kasan.c:167 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/kasan.c:184 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/kasan.c:210 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/kasan.c:241 [inline]
RIP: 0010:check_memory_region_inline mm/kasan/kasan.c:257 [inline]
RIP: 0010:check_memory_region+0x121/0x1b0 mm/kasan/kasan.c:267
Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
kasan_check_read+0x11/0x20 mm/kasan/kasan.c:272
atomic_read include/asm-generic/atomic-instrumented.h:21 [inline]
rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 kernel/rcu/tree.c:292
rcu_is_watching+0x10/0x30 kernel/rcu/tree.c:906
rcu_read_unlock include/linux/rcupdate.h:657 [inline]
list_lru_count_one+0x362/0x450 mm/list_lru.c:196
list_lru_shrink_count include/linux/list_lru.h:122 [inline]
super_cache_count+0x153/0x2e0 fs/super.c:144
do_shrink_slab+0x1b1/0xd30 mm/vmscan.c:465
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x308/0xb7e kernel/softirq.c:292
shrink_slab+0x389/0x8c0 mm/vmscan.c:706
shrink_node+0x431/0x16b0 mm/vmscan.c:2758
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
shrink_zones mm/vmscan.c:2987 [inline]
do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3049
try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3264
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [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 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 d2 ac
RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
__perform_reclaim mm/page_alloc.c:3773 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3795 [inline]
__alloc_pages_slowpath+0xa14/0x2e10 mm/page_alloc.c:4196
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 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+0xf5f/0x1000
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
alloc_pages_current+0x173/0x350 mm/mempolicy.c:2080
alloc_pages include/linux/gfp.h:509 [inline]
__page_cache_alloc+0x38c/0x5c0 mm/filemap.c:924
page_cache_read mm/filemap.c:2312 [inline]
filemap_fault+0x1595/0x25f0 mm/filemap.c:2496
rcu: rcu_preempt kthread starved for 10735 jiffies! g17693 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: RCU grace-period kthread stack dump:
rcu_preempt R running task 22696 10 2 0x80000000
Call Trace:
context_switch kernel/sched/core.c:2831 [inline]
__schedule+0x8cf/0x21d0 kernel/sched/core.c:3472
ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6291
__do_fault+0x100/0x6b0 mm/memory.c:2996
do_read_fault mm/memory.c:3408 [inline]
do_fault mm/memory.c:3534 [inline]
handle_pte_fault mm/memory.c:3765 [inline]
__handle_mm_fault+0x3ea0/0x5be0 mm/memory.c:3889
schedule+0xfe/0x460 kernel/sched/core.c:3516
schedule_timeout+0x140/0x260 kernel/time/timer.c:1804
rcu_gp_fqs_loop+0x762/0xa80 kernel/rcu/tree.c:1934
handle_mm_fault+0x54f/0xc70 mm/memory.c:3926
do_user_addr_fault arch/x86/mm/fault.c:1423 [inline]
__do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489
do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520
rcu_gp_kthread+0x341/0xc70 kernel/rcu/tree.c:2090
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1139
RIP: 0033:0x404068
Code: Bad RIP value.
RSP: 002b:000000c420024e48 EFLAGS: 00010206
RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
warn_alloc_show_mem: 1 callbacks suppressed
Mem-Info:
active_anon:47970 inactive_anon:4891 isolated_anon:0
active_file:13 inactive_file:28 isolated_file:0
unevictable:0 dirty:1 writeback:0 unstable:0
slab_reclaimable:9247 slab_unreclaimable:1454678
mapped:49154 shmem:4943 pagetables:666 bounce:0
free:13541 free_pcp:161 free_cma:0
Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB 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 2818 6321 6321
Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 3503 3503
Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB 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: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
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
4984 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
kthread+0x35a/0x440 kernel/kthread.c:246
0 pages HighMem/MovableOnly
342853 pages reserved
0 pages cma reserved
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
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-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=/ mems_allowed=0
syz-executor4 cpuset=syz4 mems_allowed=0
CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
__alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
__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+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 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+0x308/0xb7e kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
RIP: 0010:bytes_is_nonzero mm/kasan/kasan.c:167 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/kasan.c:184 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/kasan.c:210 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/kasan.c:241 [inline]
RIP: 0010:check_memory_region_inline mm/kasan/kasan.c:257 [inline]
RIP: 0010:check_memory_region+0x121/0x1b0 mm/kasan/kasan.c:267
Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
kasan_check_read+0x11/0x20 mm/kasan/kasan.c:272
atomic_read include/asm-generic/atomic-instrumented.h:21 [inline]
rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 kernel/rcu/tree.c:292
rcu_is_watching+0x10/0x30 kernel/rcu/tree.c:906
rcu_read_unlock include/linux/rcupdate.h:657 [inline]
list_lru_count_one+0x362/0x450 mm/list_lru.c:196
list_lru_shrink_count include/linux/list_lru.h:122 [inline]
super_cache_count+0x153/0x2e0 fs/super.c:144
do_shrink_slab+0x1b1/0xd30 mm/vmscan.c:465
shrink_slab+0x389/0x8c0 mm/vmscan.c:706
shrink_node+0x431/0x16b0 mm/vmscan.c:2758
shrink_zones mm/vmscan.c:2987 [inline]
do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3049
try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3264
__perform_reclaim mm/page_alloc.c:3773 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3795 [inline]
__alloc_pages_slowpath+0xa14/0x2e10 mm/page_alloc.c:4196
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
alloc_pages_current+0x173/0x350 mm/mempolicy.c:2080
alloc_pages include/linux/gfp.h:509 [inline]
__page_cache_alloc+0x38c/0x5c0 mm/filemap.c:924
page_cache_read mm/filemap.c:2312 [inline]
filemap_fault+0x1595/0x25f0 mm/filemap.c:2496
ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6291
__do_fault+0x100/0x6b0 mm/memory.c:2996
do_read_fault mm/memory.c:3408 [inline]
do_fault mm/memory.c:3534 [inline]
handle_pte_fault mm/memory.c:3765 [inline]
__handle_mm_fault+0x3ea0/0x5be0 mm/memory.c:3889
handle_mm_fault+0x54f/0xc70 mm/memory.c:3926
do_user_addr_fault arch/x86/mm/fault.c:1423 [inline]
__do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489
do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1139
RIP: 0033:0x404068
Code: Bad RIP value.
RSP: 002b:000000c420024e48 EFLAGS: 00010206
RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
Mem-Info:
active_anon:47970 inactive_anon:4891 isolated_anon:0
active_file:13 inactive_file:28 isolated_file:0
unevictable:0 dirty:1 writeback:0 unstable:0
slab_reclaimable:9247 slab_unreclaimable:1454678
mapped:49154 shmem:4943 pagetables:666 bounce:0
free:13541 free_pcp:161 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 2818 6321 6321
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 3503 3503
warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB 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: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
__alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
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
4984 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
342853 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=/ mems_allowed=0
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
__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+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 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+0x308/0xb7e kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [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 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 d2 ac
RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 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+0xf5f/0x1000
CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
syz-executor4 cpuset=syz4 mems_allowed=0
__alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
__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+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 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+0x308/0xb7e kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
RIP: 0010:bytes_is_nonzero mm/kasan/kasan.c:167 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/kasan.c:184 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/kasan.c:210 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/kasan.c:241 [inline]
RIP: 0010:check_memory_region_inline mm/kasan/kasan.c:257 [inline]
RIP: 0010:check_memory_region+0x121/0x1b0 mm/kasan/kasan.c:267
Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
kasan_check_read+0x11/0x20 mm/kasan/kasan.c:272
atomic_read include/asm-generic/atomic-instrumented.h:21 [inline]
rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 kernel/rcu/tree.c:292
rcu_is_watching+0x10/0x30 kernel/rcu/tree.c:906
rcu_read_unlock include/linux/rcupdate.h:657 [inline]
list_lru_count_one+0x362/0x450 mm/list_lru.c:196
list_lru_shrink_count include/linux/list_lru.h:122 [inline]
super_cache_count+0x153/0x2e0 fs/super.c:144
do_shrink_slab+0x1b1/0xd30 mm/vmscan.c:465
shrink_slab+0x389/0x8c0 mm/vmscan.c:706
shrink_node+0x431/0x16b0 mm/vmscan.c:2758
shrink_zones mm/vmscan.c:2987 [inline]
do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3049
try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3264
__perform_reclaim mm/page_alloc.c:3773 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3795 [inline]
__alloc_pages_slowpath+0xa14/0x2e10 mm/page_alloc.c:4196
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
alloc_pages_current+0x173/0x350 mm/mempolicy.c:2080
alloc_pages include/linux/gfp.h:509 [inline]
__page_cache_alloc+0x38c/0x5c0 mm/filemap.c:924
page_cache_read mm/filemap.c:2312 [inline]
filemap_fault+0x1595/0x25f0 mm/filemap.c:2496
ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6291
__do_fault+0x100/0x6b0 mm/memory.c:2996
do_read_fault mm/memory.c:3408 [inline]
do_fault mm/memory.c:3534 [inline]
handle_pte_fault mm/memory.c:3765 [inline]
__handle_mm_fault+0x3ea0/0x5be0 mm/memory.c:3889
handle_mm_fault+0x54f/0xc70 mm/memory.c:3926
do_user_addr_fault arch/x86/mm/fault.c:1423 [inline]
__do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489
do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1139
RIP: 0033:0x404068
Code: Bad RIP value.
RSP: 002b:000000c420024e48 EFLAGS: 00010206
RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
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:47970 inactive_anon:4891 isolated_anon:0
active_file:13 inactive_file:28 isolated_file:0
unevictable:0 dirty:1 writeback:0 unstable:0
slab_reclaimable:9247 slab_unreclaimable:1454678
mapped:49154 shmem:4943 pagetables:666 bounce:0
free:13541 free_pcp:161 free_cma:0
Call Trace:
Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB 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
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
lowmem_reserve[]: 0 2818 6321 6321
Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
lowmem_reserve[]: 0 0 3503 3503
Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB 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: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
__alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
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
4984 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
342853 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=/ mems_allowed=0
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
__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+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 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+0x308/0xb7e kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [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 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 d2 ac
RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 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+0xf5f/0x1000
CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor4 cpuset=syz4 mems_allowed=0
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
__alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
__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+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 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+0x308/0xb7e kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
RIP: 0010:bytes_is_nonzero mm/kasan/kasan.c:167 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/kasan.c:184 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/kasan.c:210 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/kasan.c:241 [inline]
RIP: 0010:check_memory_region_inline mm/kasan/kasan.c:257 [inline]
RIP: 0010:check_memory_region+0x121/0x1b0 mm/kasan/kasan.c:267
Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
kasan_check_read+0x11/0x20 mm/kasan/kasan.c:272
atomic_read include/asm-generic/atomic-instrumented.h:21 [inline]
rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 kernel/rcu/tree.c:292
rcu_is_watching+0x10/0x30 kernel/rcu/tree.c:906
rcu_read_unlock include/linux/rcupdate.h:657 [inline]
list_lru_count_one+0x362/0x450 mm/list_lru.c:196
list_lru_shrink_count include/linux/list_lru.h:122 [inline]
super_cache_count+0x153/0x2e0 fs/super.c:144
do_shrink_slab+0x1b1/0xd30 mm/vmscan.c:465
shrink_slab+0x389/0x8c0 mm/vmscan.c:706
shrink_node+0x431/0x16b0 mm/vmscan.c:2758
shrink_zones mm/vmscan.c:2987 [inline]
do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3049
try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3264
__perform_reclaim mm/page_alloc.c:3773 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3795 [inline]
__alloc_pages_slowpath+0xa14/0x2e10 mm/page_alloc.c:4196
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
alloc_pages_current+0x173/0x350 mm/mempolicy.c:2080
alloc_pages include/linux/gfp.h:509 [inline]
__page_cache_alloc+0x38c/0x5c0 mm/filemap.c:924
page_cache_read mm/filemap.c:2312 [inline]
filemap_fault+0x1595/0x25f0 mm/filemap.c:2496
ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6291
__do_fault+0x100/0x6b0 mm/memory.c:2996
do_read_fault mm/memory.c:3408 [inline]
do_fault mm/memory.c:3534 [inline]
handle_pte_fault mm/memory.c:3765 [inline]
__handle_mm_fault+0x3ea0/0x5be0 mm/memory.c:3889
handle_mm_fault+0x54f/0xc70 mm/memory.c:3926
do_user_addr_fault arch/x86/mm/fault.c:1423 [inline]
__do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489
do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1139
RIP: 0033:0x404068
Code: Bad RIP value.
RSP: 002b:000000c420024e48 EFLAGS: 00010206
RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
Mem-Info:
active_anon:47970 inactive_anon:4891 isolated_anon:0
active_file:13 inactive_file:28 isolated_file:0
unevictable:0 dirty:1 writeback:0 unstable:0
slab_reclaimable:9247 slab_unreclaimable:1454678
mapped:49154 shmem:4943 pagetables:666 bounce:0
free:13541 free_pcp:161 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 2818 6321 6321
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 3503 3503
warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB 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: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
__alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
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
4984 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
342853 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=/ mems_allowed=0
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
__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+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 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