INFO: rcu detected stall in ret_from_fork (2)
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syzbot
Sep 16, 2018, 5:33:03 AM9/16/18
to syzkaller-upst...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: 2e2a0c961a87 Merge branch 'progarray_mapinmap_dump'
git tree: bpf-next
console output: https://syzkaller.appspot.com/x/log.txt?x=14a0e02a400000
kernel config: https://syzkaller.appspot.com/x/.config?x=8f59875069d721b6
dashboard link: https://syzkaller.appspot.com/bug?extid=18a0562d80926b72d1a1
compiler: gcc (GCC) 8.0.1 20180413 (experimental)
CC: [ak...@linux-foundation.org arya...@virtuozzo.com
jba...@fb.com ktk...@virtuozzo.com linux-...@vger.kernel.org
linu...@kvack.org mgo...@techsingularity.net mho...@suse.com
penguin...@I-love.SAKURA.ne.jp ros...@goodmis.org shak...@google.com
vdavyd...@gmail.com]
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+18a056...@syzkaller.appspotmail.com
CPU: 1 PID: 5338 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #94
rcu: INFO: rcu_preempt self-detected stall on CPU
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
rcu: 0-...!: (1 GPs behind) idle=032/1/0x4000000000000004
softirq=8845/8846 fqs=1
<IRQ>
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426
__alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
rcu:
(t=10580 jiffies g=9229 q=13)
rcu: rcu_preempt kthread starved for 10513 jiffies! g9229 f0x0
RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: RCU grace-period kthread stack dump:
rcu_preempt R
running task
23064 10 2 0x80000000
Call Trace:
context_switch kernel/sched/core.c:2825 [inline]
__schedule+0x86c/0x1ed0 kernel/sched/core.c:3473
schedule+0xfe/0x460 kernel/sched/core.c:3517
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
schedule_timeout+0x140/0x260 kernel/time/timer.c:1804
rcu_gp_kthread+0x9d9/0x2310 kernel/rcu/tree.c:2194
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0x91/0x8c0 mm/slab.c:2677
fallback_alloc+0x203/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x30b/0xad8 kernel/softirq.c:292
kthread+0x35a/0x420 kernel/kthread.c:246
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413
NMI backtrace for cpu 0
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
</IRQ>
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0xd/0x50 kernel/kcov.c:100
Code: c1 01 4a 89 7c 10 e0 4a 89 74 10 e8 4a 89 54 10 f0 4a 89 4c d8 20 4c
89 08 5d c3 66 90 55 48 89 e5 65 48 8b 04 25 40 ee 01 00 <65> 8b 15 8c 1e
83 7e 81 e2 00 01 1f 00 48 8b 75 08 75 2b 8b 90 d0
RSP: 0000:ffff8801bb33dc18 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff8801bb31e200 RBX: 1ffff10037667b86 RCX: ffffffff81a788ad
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff8801bb33dc18 R08: ffff8801bb31e200 R09: ffffed003b5a4732
R10: ffffed003b5a4732 R11: ffff8801dad23993 R12: 0000000000000001
R13: 0000000000000000 R14: 1ffff10037667b92 R15: dead000000000100
rcu_read_unlock include/linux/rcupdate.h:679 [inline]
page_evictable+0x36b/0x540 mm/vmscan.c:4150
shrink_active_list+0x845/0x1c20 mm/vmscan.c:2106
shrink_list mm/vmscan.c:2250 [inline]
shrink_node_memcg+0x803/0x18e0 mm/vmscan.c:2517
shrink_node+0x3bc/0x16b0 mm/vmscan.c:2732
shrink_zones mm/vmscan.c:2964 [inline]
do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3026
try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3241
__perform_reclaim mm/page_alloc.c:3769 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline]
__alloc_pages_slowpath+0x993/0x2d80 mm/page_alloc.c:4191
__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:6257
__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:000000c420057ab8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 000000000045df89
RDX: 000000c420057ac0 RSI: 000000c420057bf0 RDI: 0000000000000011
RBP: 000000c420033e90 R08: 0000000000000003 R09: 000000c420000d80
R10: 00000000ffffffff R11: 0000000000000246 R12: 000000c425e49dd8
R13: 000000000000000f R14: 0000000000b79720 R15: ffffffffffffffff
CPU: 0 PID: 7087 Comm: syz-executor0 Not tainted 4.19.0-rc2+ #94
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:41015 inactive_anon:371 isolated_anon:0
active_file:15 inactive_file:16 isolated_file:2
unevictable:0 dirty:0 writeback:0 unstable:0
slab_reclaimable:8542 slab_unreclaimable:1483152
mapped:41147 shmem:379 pagetables:605 bounce:0
free:13788 free_pcp:262 free_cma:0
Call Trace:
Node 0 active_anon:164060kB inactive_anon:1484kB active_file:60kB
inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):8kB
mapped:164588kB dirty:0kB writeback:0kB shmem:1516kB shmem_thp: 0kB
shmem_pmdmapped: 0kB anon_thp: 153600kB writeback_tmp:0kB unstable:0kB
all_unreclaimable? yes
<IRQ>
Node 0
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB
inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB
writepending:0kB present:15992kB managed:15908kB mlocked:0kB
kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB
free_cma:0kB
lowmem_reserve[]:
0
2815
nmi_cpu_backtrace.cold.3+0x63/0xa2 lib/nmi_backtrace.c:101
6318
6318
nmi_trigger_cpumask_backtrace+0x1b3/0x1ed lib/nmi_backtrace.c:62
arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
Node 0
trigger_single_cpu_backtrace include/linux/nmi.h:162 [inline]
rcu_dump_cpu_stacks+0x175/0x1c2 kernel/rcu/tree.c:1340
DMA32 free:25228kB min:30036kB low:37544kB high:45052kB active_anon:2048kB
inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB
writepending:0kB present:3129332kB managed:2887244kB mlocked:0kB
kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB
free_cma:0kB
lowmem_reserve[]:
print_cpu_stall.cold.78+0x2d3/0x524 kernel/rcu/tree.c:1478
0 0
3503
3503
Node 0
Normal free:14016kB min:37376kB low:46720kB high:56064kB
active_anon:162012kB inactive_anon:1484kB active_file:60kB
inactive_file:64kB unevictable:0kB writepending:0kB present:4718592kB
managed:3587472kB mlocked:0kB kernel_stack:5184kB pagetables:2420kB
bounce:0kB free_pcp:800kB local_pcp:332kB free_cma:0kB
lowmem_reserve[]:
0
0
0
0
check_cpu_stall kernel/rcu/tree.c:1550 [inline]
__rcu_pending kernel/rcu/tree.c:3276 [inline]
rcu_pending kernel/rcu/tree.c:3319 [inline]
rcu_check_callbacks+0xfd9/0x1990 kernel/rcu/tree.c:2665
Node 0
DMA:
1*4kB
(U)
0*8kB
0*16kB 1*32kB
(U)
2*64kB
(U)
1*128kB
(U) 1*256kB
(U)
0*512kB
1*1024kB
(U)
1*2048kB
(M)
3*4096kB (M)
= 15908kB
Node 0
DMA32:
3*4kB
(M)
2*8kB
(M)
1*16kB
(M)
update_process_times+0x2d/0x70 kernel/time/timer.c:1636
1*32kB
tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164
(M)
tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274
3*64kB
__run_hrtimer kernel/time/hrtimer.c:1398 [inline]
__hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460
(UM)
3*128kB
(M) 2*256kB
(M)
3*512kB
(M)
4*1024kB (UM)
3*2048kB
(UM)
3*4096kB
(M)
hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518
= 25228kB
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
Node 0
Normal:
866*4kB
(ME)
469*8kB
(UME)
197*16kB
(UME)
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
59*32kB
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
(UME)
Code: 40 7e 0f 85 32 ff ff ff e8 15 d6 3e ff e9 28 ff ff ff e8 2c 33 c3 ff
48 83 3d cc 81 b0 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00
e9 bf fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 b2 73
18*64kB
RSP: 0000:ffff8801dac07450 EFLAGS: 00000282
(ME)
ORIG_RAX: ffffffffffffff13
3*128kB (M)
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff100347c8df1
1*256kB
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000282
(U)
RBP: ffff8801dac074c0 R08: ffff8801a3e46f88 R09: 0000000000000002
0*512kB
R10: 0000000000000000 R11: ffff8801a3e466c0 R12: ffff8801d9be7680
0*1024kB
R13: ffff8801d9be7680 R14: 0000000000000000 R15: 0000000000000282
0*2048kB
0*4096kB
= 14048kB
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
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
412 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
343323 pages reserved
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
0 pages cma reserved
addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|
__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=
/
mems_allowed=0
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x30b/0xad8 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
</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 76 b6 3e ff e9 c5 fe ff ff e8 8d 13 c3 ff 48
83 3d 2d 62 b0 07 00 0f 84 3b 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00
e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 b2 73
RSP: 0000:ffff8801a3e4f748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801a3e46f40 RDI: 0000000000000282
RBP: ffff8801a3e4f7b0 R08: ffff8801a3e466c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
skb_clone+0x1bb/0x500 net/core/skbuff.c:1283
____bpf_clone_redirect net/core/filter.c:2075 [inline]
bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
bpf_prog_01d53e16fc18f1d9+0x5cd/0x1000
CPU: 1 PID: 5338 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #94
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-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|
__GFP_COMP), nodemask=(null)
<IRQ>
syz-executor0 cpuset=
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
syz0
mems_allowed=0
warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426
__alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0x91/0x8c0 mm/slab.c:2677
fallback_alloc+0x203/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x30b/0xad8 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
</IRQ>
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0xd/0x50 kernel/kcov.c:100
Code: c1 01 4a 89 7c 10 e0 4a 89 74 10 e8 4a 89 54 10 f0 4a 89 4c d8 20 4c
89 08 5d c3 66 90 55 48 89 e5 65 48 8b 04 25 40 ee 01 00 <65> 8b 15 8c 1e
83 7e 81 e2 00 01 1f 00 48 8b 75 08 75 2b 8b 90 d0
RSP: 0000:ffff8801bb33dc18 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff8801bb31e200 RBX: 1ffff10037667b86 RCX: ffffffff81a788ad
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff8801bb33dc18 R08: ffff8801bb31e200 R09: ffffed003b5a4732
R10: ffffed003b5a4732 R11: ffff8801dad23993 R12: 0000000000000001
R13: 0000000000000000 R14: 1ffff10037667b92 R15: dead000000000100
rcu_read_unlock include/linux/rcupdate.h:679 [inline]
page_evictable+0x36b/0x540 mm/vmscan.c:4150
shrink_active_list+0x845/0x1c20 mm/vmscan.c:2106
shrink_list mm/vmscan.c:2250 [inline]
shrink_node_memcg+0x803/0x18e0 mm/vmscan.c:2517
shrink_node+0x3bc/0x16b0 mm/vmscan.c:2732
shrink_zones mm/vmscan.c:2964 [inline]
do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3026
try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3241
__perform_reclaim mm/page_alloc.c:3769 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline]
__alloc_pages_slowpath+0x993/0x2d80 mm/page_alloc.c:4191
__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:6257
__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:000000c420057ab8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 000000000045df89
RDX: 000000c420057ac0 RSI: 000000c420057bf0 RDI: 0000000000000011
RBP: 000000c420033e90 R08: 0000000000000003 R09: 000000c420000d80
R10: 00000000ffffffff R11: 0000000000000246 R12: 000000c425e49dd8
R13: 000000000000000f R14: 0000000000b79720 R15: ffffffffffffffff
CPU: 0 PID: 7087 Comm: syz-executor0 Not tainted 4.19.0-rc2+ #94
Mem-Info:
active_anon:41015 inactive_anon:371 isolated_anon:0
active_file:15 inactive_file:16 isolated_file:2
unevictable:0 dirty:0 writeback:0 unstable:0
slab_reclaimable:8542 slab_unreclaimable:1483152
mapped:41147 shmem:379 pagetables:605 bounce:0
free:13788 free_pcp:262 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Node 0 active_anon:164060kB inactive_anon:1484kB active_file:60kB
inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):8kB
mapped:164588kB dirty:0kB writeback:0kB shmem:1516kB shmem_thp: 0kB
shmem_pmdmapped: 0kB anon_thp: 153600kB 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.118+0xb7/0x1bd mm/page_alloc.c:3426
2815
6318 6318
Node 0 DMA32 free:25228kB min:30036kB low:37544kB high:45052kB
active_anon:2048kB inactive_anon:0kB active_file:0kB inactive_file:0kB
unevictable:0kB writepending:0kB present:3129332kB managed:2887244kB
mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB
local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 3503
__alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
3503
Node 0
Normal free:14016kB min:37376kB low:46720kB high:56064kB
active_anon:162012kB inactive_anon:1484kB active_file:60kB
inactive_file:64kB unevictable:0kB writepending:0kB present:4718592kB
managed:3587472kB mlocked:0kB kernel_stack:5184kB pagetables:2420kB
bounce:0kB free_pcp:800kB local_pcp:332kB 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)
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
3*4096kB
(M)
= 15908kB
Node 0
DMA32:
3*4kB
(M)
2*8kB
(M)
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0x91/0x8c0 mm/slab.c:2677
1*16kB
(M)
fallback_alloc+0x203/0x2e0 mm/slab.c:3219
1*32kB (M)
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
3*64kB (UM)
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
3*128kB
(M)
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
2*256kB
(M)
3*512kB
(M)
4*1024kB (UM)
3*2048kB
(UM)
3*4096kB
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
(M)
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
= 25228kB
addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
Node 0
Normal:
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
866*4kB
(ME)
469*8kB
(UME)
197*16kB
(UME)
59*32kB
(UME)
18*64kB (ME)
3*128kB
(M)
1*256kB
(U)
0*512kB
0*1024kB
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
0*2048kB
0*4096kB
= 14048kB
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
412 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
343323 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)
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
syz-fuzzer cpuset=
/
__do_softirq+0x30b/0xad8 kernel/softirq.c:292
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_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 76 b6 3e ff e9 c5 fe ff ff e8 8d 13 c3 ff 48
83 3d 2d 62 b0 07 00 0f 84 3b 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00
e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 b2 73
RSP: 0000:ffff8801a3e4f748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801a3e46f40 RDI: 0000000000000282
RBP: ffff8801a3e4f7b0 R08: ffff8801a3e466c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
skb_clone+0x1bb/0x500 net/core/skbuff.c:1283
____bpf_clone_redirect net/core/filter.c:2075 [inline]
bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
bpf_prog_01d53e16fc18f1d9+0x5cd/0x1000
CPU: 1 PID: 5338 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #94
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-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|
__GFP_COMP), nodemask=(null)
warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426
syz-executor0 cpuset=
syz0
mems_allowed=0
__alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0x91/0x8c0 mm/slab.c:2677
fallback_alloc+0x203/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x30b/0xad8 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
</IRQ>
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0xd/0x50 kernel/kcov.c:100
Code: c1 01 4a 89 7c 10 e0 4a 89 74 10 e8 4a 89 54 10 f0 4a 89 4c d8 20 4c
89 08 5d c3 66 90 55 48 89 e5 65 48 8b 04 25 40 ee 01 00 <65> 8b 15 8c 1e
83 7e 81 e2 00 01 1f 00 48 8b 75 08 75 2b 8b 90 d0
RSP: 0000:ffff8801bb33dc18 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff8801bb31e200 RBX: 1ffff10037667b86 RCX: ffffffff81a788ad
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff8801bb33dc18 R08: ffff8801bb31e200 R09: ffffed003b5a4732
R10: ffffed003b5a4732 R11: ffff8801dad23993 R12: 0000000000000001
R13: 0000000000000000 R14: 1ffff10037667b92 R15: dead000000000100
rcu_read_unlock include/linux/rcupdate.h:679 [inline]
page_evictable+0x36b/0x540 mm/vmscan.c:4150
shrink_active_list+0x845/0x1c20 mm/vmscan.c:2106
shrink_list mm/vmscan.c:2250 [inline]
shrink_node_memcg+0x803/0x18e0 mm/vmscan.c:2517
shrink_node+0x3bc/0x16b0 mm/vmscan.c:2732
shrink_zones mm/vmscan.c:2964 [inline]
do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3026
try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3241
__perform_reclaim mm/page_alloc.c:3769 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline]
__alloc_pages_slowpath+0x993/0x2d80 mm/page_alloc.c:4191
__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:6257
__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:000000c420057ab8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 000000000045df89
RDX: 000000c420057ac0 RSI: 000000c420057bf0 RDI: 0000000000000011
RBP: 000000c420033e90 R08: 0000000000000003 R09: 000000c420000d80
R10: 00000000ffffffff R11: 0000000000000246 R12: 000000c425e49dd8
R13: 000000000000000f R14: 0000000000b79720 R15: ffffffffffffffff
CPU: 0 PID: 7087 Comm: syz-executor0 Not tainted 4.19.0-rc2+ #94
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:41015 inactive_anon:371 isolated_anon:0
active_file:15 inactive_file:16 isolated_file:2
unevictable:0 dirty:0 writeback:0 unstable:0
slab_reclaimable:8542 slab_unreclaimable:1483152
mapped:41147 shmem:379 pagetables:605 bounce:0
free:13788 free_pcp:262 free_cma:0
Call Trace:
Node 0 active_anon:164060kB inactive_anon:1484kB active_file:60kB
inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):8kB
mapped:164588kB dirty:0kB writeback:0kB shmem:1516kB shmem_thp: 0kB
shmem_pmdmapped: 0kB anon_thp: 153600kB writeback_tmp:0kB unstable:0kB
all_unreclaimable? yes
<IRQ>
Node 0
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB
inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB
writepending:0kB present:15992kB managed:15908kB mlocked:0kB
kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB
free_cma:0kB
lowmem_reserve[]:
warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426
0 2815
6318
6318
Node 0
DMA32 free:25228kB min:30036kB low:37544kB high:45052kB active_anon:2048kB
inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB
writepending:0kB present:3129332kB managed:2887244kB mlocked:0kB
kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB
free_cma:0kB
__alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
lowmem_reserve[]:
0
0
3503
3503
Node 0
Normal free:14016kB min:37376kB low:46720kB high:56064kB
active_anon:162012kB inactive_anon:1484kB active_file:60kB
inactive_file:64kB unevictable:0kB writepending:0kB present:4718592kB
managed:3587472kB mlocked:0kB kernel_stack:5184kB pagetables:2420kB
bounce:0kB free_pcp:800kB local_pcp:332kB 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
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
(U)
0*512kB
1*1024kB
(U)
1*2048kB (M)
3*4096kB
(M)
= 15908kB
__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
Node 0
DMA32:
fallback_alloc+0x203/0x2e0 mm/slab.c:3219
3*4kB
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
(M)
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
2*8kB
(M)
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
1*16kB
(M)
1*32kB
(M) 3*64kB
(UM)
3*128kB
(M)
2*256kB
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
(M)
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
3*512kB
addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
(M)
4*1024kB
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
(UM)
3*2048kB
(UM)
3*4096kB
(M)
= 25228kB
Node 0
Normal:
866*4kB
(ME)
469*8kB
(UME)
197*16kB
(UME)
59*32kB
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
(UME)
18*64kB
(ME)
3*128kB
(M)
1*256kB
(U)
0*512kB
0*1024kB
0*2048kB
0*4096kB
= 14048kB
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
412 total pagecache pages
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
0 pages in swap cache
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
343323 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|
__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=
/
mems_allowed=0
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
</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 76 b6 3e ff e9 c5 fe ff ff e8 8d 13 c3 ff 48
83 3d 2d 62 b0 07 00 0f 84 3b 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00
e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 b2 73
RSP: 0000:ffff8801a3e4f748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801a3e46f40 RDI: 0000000000000282
RBP: ffff8801a3e4f7b0 R08: ffff8801a3e466c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
skb_clone+0x1bb/0x500 net/core/skbuff.c:1283
____bpf_clone_redirect net/core/filter.c:2075 [inline]
bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
bpf_prog_01d53e16fc18f1d9+0x5cd/0x1000
CPU: 1 PID: 5338 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #94
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
warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426
syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|
__GFP_COMP), nodemask=(null)
syz-executor0 cpuset=
syz0
mems_allowed=0
__alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0x91/0x8c0 mm/slab.c:2677
fallback_alloc+0x203/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x30b/0xad8 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
</IRQ>
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0xd/0x50 kernel/kcov.c:100
Code: c1 01 4a 89 7c 10 e0 4a 89 74 10 e8 4a 89 54 10 f0 4a 89 4c d8 20 4c
89 08 5d c3 66 90 55 48 89 e5 65 48 8b 04 25 40 ee 01 00 <65> 8b 15 8c 1e
83 7e 81 e2 00 01 1f 00 48 8b 75 08 75 2b 8b 90 d0
RSP: 0000:ffff8801bb33dc18 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff8801bb31e200 RBX: 1ffff10037667b86 RCX: ffffffff81a788ad
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff8801bb33dc18 R08: ffff8801bb31e200 R09: ffffed003b5a4732
R10: ffffed003b5a4732 R11: ffff8801dad23993 R12: 0000000000000001
R13: 0000000000000000 R14: 1ffff10037667b92 R15: dead000000000100
rcu_read_unlock include/linux/rcupdate.h:679 [inline]
page_evictable+0x36b/0x540 mm/vmscan.c:4150
shrink_active_list+0x845/0x1c20 mm/vmscan.c:2106
shrink_list mm/vmscan.c:2250 [inline]
shrink_node_memcg+0x803/0x18e0 mm/vmscan.c:2517
shrink_node+0x3bc/0x16b0 mm/vmscan.c:2732
shrink_zones mm/vmscan.c:2964 [inline]
do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3026
try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3241
__perform_reclaim mm/page_alloc.c:3769 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline]
__alloc_pages_slowpath+0x993/0x2d80 mm/page_alloc.c:4191
__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:6257
__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
---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with
syzbot.
syzbot found the following crash on:
HEAD commit: 2e2a0c961a87 Merge branch 'progarray_mapinmap_dump'
git tree: bpf-next
console output: https://syzkaller.appspot.com/x/log.txt?x=14a0e02a400000
kernel config: https://syzkaller.appspot.com/x/.config?x=8f59875069d721b6
dashboard link: https://syzkaller.appspot.com/bug?extid=18a0562d80926b72d1a1
compiler: gcc (GCC) 8.0.1 20180413 (experimental)
CC: [ak...@linux-foundation.org arya...@virtuozzo.com
jba...@fb.com ktk...@virtuozzo.com linux-...@vger.kernel.org
linu...@kvack.org mgo...@techsingularity.net mho...@suse.com
penguin...@I-love.SAKURA.ne.jp ros...@goodmis.org shak...@google.com
vdavyd...@gmail.com]
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+18a056...@syzkaller.appspotmail.com
CPU: 1 PID: 5338 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #94
rcu: INFO: rcu_preempt self-detected stall on CPU
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
rcu: 0-...!: (1 GPs behind) idle=032/1/0x4000000000000004
softirq=8845/8846 fqs=1
<IRQ>
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426
__alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
rcu:
(t=10580 jiffies g=9229 q=13)
rcu: rcu_preempt kthread starved for 10513 jiffies! g9229 f0x0
RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: RCU grace-period kthread stack dump:
rcu_preempt R
running task
23064 10 2 0x80000000
Call Trace:
context_switch kernel/sched/core.c:2825 [inline]
__schedule+0x86c/0x1ed0 kernel/sched/core.c:3473
schedule+0xfe/0x460 kernel/sched/core.c:3517
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
schedule_timeout+0x140/0x260 kernel/time/timer.c:1804
rcu_gp_kthread+0x9d9/0x2310 kernel/rcu/tree.c:2194
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0x91/0x8c0 mm/slab.c:2677
fallback_alloc+0x203/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x30b/0xad8 kernel/softirq.c:292
kthread+0x35a/0x420 kernel/kthread.c:246
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413
NMI backtrace for cpu 0
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
</IRQ>
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0xd/0x50 kernel/kcov.c:100
Code: c1 01 4a 89 7c 10 e0 4a 89 74 10 e8 4a 89 54 10 f0 4a 89 4c d8 20 4c
89 08 5d c3 66 90 55 48 89 e5 65 48 8b 04 25 40 ee 01 00 <65> 8b 15 8c 1e
83 7e 81 e2 00 01 1f 00 48 8b 75 08 75 2b 8b 90 d0
RSP: 0000:ffff8801bb33dc18 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff8801bb31e200 RBX: 1ffff10037667b86 RCX: ffffffff81a788ad
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff8801bb33dc18 R08: ffff8801bb31e200 R09: ffffed003b5a4732
R10: ffffed003b5a4732 R11: ffff8801dad23993 R12: 0000000000000001
R13: 0000000000000000 R14: 1ffff10037667b92 R15: dead000000000100
rcu_read_unlock include/linux/rcupdate.h:679 [inline]
page_evictable+0x36b/0x540 mm/vmscan.c:4150
shrink_active_list+0x845/0x1c20 mm/vmscan.c:2106
shrink_list mm/vmscan.c:2250 [inline]
shrink_node_memcg+0x803/0x18e0 mm/vmscan.c:2517
shrink_node+0x3bc/0x16b0 mm/vmscan.c:2732
shrink_zones mm/vmscan.c:2964 [inline]
do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3026
try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3241
__perform_reclaim mm/page_alloc.c:3769 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline]
__alloc_pages_slowpath+0x993/0x2d80 mm/page_alloc.c:4191
__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:6257
__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:000000c420057ab8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 000000000045df89
RDX: 000000c420057ac0 RSI: 000000c420057bf0 RDI: 0000000000000011
RBP: 000000c420033e90 R08: 0000000000000003 R09: 000000c420000d80
R10: 00000000ffffffff R11: 0000000000000246 R12: 000000c425e49dd8
R13: 000000000000000f R14: 0000000000b79720 R15: ffffffffffffffff
CPU: 0 PID: 7087 Comm: syz-executor0 Not tainted 4.19.0-rc2+ #94
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:41015 inactive_anon:371 isolated_anon:0
active_file:15 inactive_file:16 isolated_file:2
unevictable:0 dirty:0 writeback:0 unstable:0
slab_reclaimable:8542 slab_unreclaimable:1483152
mapped:41147 shmem:379 pagetables:605 bounce:0
free:13788 free_pcp:262 free_cma:0
Call Trace:
Node 0 active_anon:164060kB inactive_anon:1484kB active_file:60kB
inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):8kB
mapped:164588kB dirty:0kB writeback:0kB shmem:1516kB shmem_thp: 0kB
shmem_pmdmapped: 0kB anon_thp: 153600kB writeback_tmp:0kB unstable:0kB
all_unreclaimable? yes
<IRQ>
Node 0
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB
inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB
writepending:0kB present:15992kB managed:15908kB mlocked:0kB
kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB
free_cma:0kB
lowmem_reserve[]:
0
2815
nmi_cpu_backtrace.cold.3+0x63/0xa2 lib/nmi_backtrace.c:101
6318
6318
nmi_trigger_cpumask_backtrace+0x1b3/0x1ed lib/nmi_backtrace.c:62
arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
Node 0
trigger_single_cpu_backtrace include/linux/nmi.h:162 [inline]
rcu_dump_cpu_stacks+0x175/0x1c2 kernel/rcu/tree.c:1340
DMA32 free:25228kB min:30036kB low:37544kB high:45052kB active_anon:2048kB
inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB
writepending:0kB present:3129332kB managed:2887244kB mlocked:0kB
kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB
free_cma:0kB
lowmem_reserve[]:
print_cpu_stall.cold.78+0x2d3/0x524 kernel/rcu/tree.c:1478
0 0
3503
3503
Node 0
Normal free:14016kB min:37376kB low:46720kB high:56064kB
active_anon:162012kB inactive_anon:1484kB active_file:60kB
inactive_file:64kB unevictable:0kB writepending:0kB present:4718592kB
managed:3587472kB mlocked:0kB kernel_stack:5184kB pagetables:2420kB
bounce:0kB free_pcp:800kB local_pcp:332kB free_cma:0kB
lowmem_reserve[]:
0
0
0
0
check_cpu_stall kernel/rcu/tree.c:1550 [inline]
__rcu_pending kernel/rcu/tree.c:3276 [inline]
rcu_pending kernel/rcu/tree.c:3319 [inline]
rcu_check_callbacks+0xfd9/0x1990 kernel/rcu/tree.c:2665
Node 0
DMA:
1*4kB
(U)
0*8kB
0*16kB 1*32kB
(U)
2*64kB
(U)
1*128kB
(U) 1*256kB
(U)
0*512kB
1*1024kB
(U)
1*2048kB
(M)
3*4096kB (M)
= 15908kB
Node 0
DMA32:
3*4kB
(M)
2*8kB
(M)
1*16kB
(M)
update_process_times+0x2d/0x70 kernel/time/timer.c:1636
1*32kB
tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164
(M)
tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274
3*64kB
__run_hrtimer kernel/time/hrtimer.c:1398 [inline]
__hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460
(UM)
3*128kB
(M) 2*256kB
(M)
3*512kB
(M)
4*1024kB (UM)
3*2048kB
(UM)
3*4096kB
(M)
hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518
= 25228kB
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
Node 0
Normal:
866*4kB
(ME)
469*8kB
(UME)
197*16kB
(UME)
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
59*32kB
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
(UME)
Code: 40 7e 0f 85 32 ff ff ff e8 15 d6 3e ff e9 28 ff ff ff e8 2c 33 c3 ff
48 83 3d cc 81 b0 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00
e9 bf fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 b2 73
18*64kB
RSP: 0000:ffff8801dac07450 EFLAGS: 00000282
(ME)
ORIG_RAX: ffffffffffffff13
3*128kB (M)
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff100347c8df1
1*256kB
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000282
(U)
RBP: ffff8801dac074c0 R08: ffff8801a3e46f88 R09: 0000000000000002
0*512kB
R10: 0000000000000000 R11: ffff8801a3e466c0 R12: ffff8801d9be7680
0*1024kB
R13: ffff8801d9be7680 R14: 0000000000000000 R15: 0000000000000282
0*2048kB
0*4096kB
= 14048kB
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
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
412 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
343323 pages reserved
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
0 pages cma reserved
addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|
__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=
/
mems_allowed=0
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x30b/0xad8 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
</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 76 b6 3e ff e9 c5 fe ff ff e8 8d 13 c3 ff 48
83 3d 2d 62 b0 07 00 0f 84 3b 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00
e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 b2 73
RSP: 0000:ffff8801a3e4f748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801a3e46f40 RDI: 0000000000000282
RBP: ffff8801a3e4f7b0 R08: ffff8801a3e466c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
skb_clone+0x1bb/0x500 net/core/skbuff.c:1283
____bpf_clone_redirect net/core/filter.c:2075 [inline]
bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
bpf_prog_01d53e16fc18f1d9+0x5cd/0x1000
CPU: 1 PID: 5338 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #94
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-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|
__GFP_COMP), nodemask=(null)
<IRQ>
syz-executor0 cpuset=
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
syz0
mems_allowed=0
warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426
__alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0x91/0x8c0 mm/slab.c:2677
fallback_alloc+0x203/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x30b/0xad8 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
</IRQ>
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0xd/0x50 kernel/kcov.c:100
Code: c1 01 4a 89 7c 10 e0 4a 89 74 10 e8 4a 89 54 10 f0 4a 89 4c d8 20 4c
89 08 5d c3 66 90 55 48 89 e5 65 48 8b 04 25 40 ee 01 00 <65> 8b 15 8c 1e
83 7e 81 e2 00 01 1f 00 48 8b 75 08 75 2b 8b 90 d0
RSP: 0000:ffff8801bb33dc18 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff8801bb31e200 RBX: 1ffff10037667b86 RCX: ffffffff81a788ad
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff8801bb33dc18 R08: ffff8801bb31e200 R09: ffffed003b5a4732
R10: ffffed003b5a4732 R11: ffff8801dad23993 R12: 0000000000000001
R13: 0000000000000000 R14: 1ffff10037667b92 R15: dead000000000100
rcu_read_unlock include/linux/rcupdate.h:679 [inline]
page_evictable+0x36b/0x540 mm/vmscan.c:4150
shrink_active_list+0x845/0x1c20 mm/vmscan.c:2106
shrink_list mm/vmscan.c:2250 [inline]
shrink_node_memcg+0x803/0x18e0 mm/vmscan.c:2517
shrink_node+0x3bc/0x16b0 mm/vmscan.c:2732
shrink_zones mm/vmscan.c:2964 [inline]
do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3026
try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3241
__perform_reclaim mm/page_alloc.c:3769 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline]
__alloc_pages_slowpath+0x993/0x2d80 mm/page_alloc.c:4191
__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:6257
__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:000000c420057ab8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 000000000045df89
RDX: 000000c420057ac0 RSI: 000000c420057bf0 RDI: 0000000000000011
RBP: 000000c420033e90 R08: 0000000000000003 R09: 000000c420000d80
R10: 00000000ffffffff R11: 0000000000000246 R12: 000000c425e49dd8
R13: 000000000000000f R14: 0000000000b79720 R15: ffffffffffffffff
CPU: 0 PID: 7087 Comm: syz-executor0 Not tainted 4.19.0-rc2+ #94
Mem-Info:
active_anon:41015 inactive_anon:371 isolated_anon:0
active_file:15 inactive_file:16 isolated_file:2
unevictable:0 dirty:0 writeback:0 unstable:0
slab_reclaimable:8542 slab_unreclaimable:1483152
mapped:41147 shmem:379 pagetables:605 bounce:0
free:13788 free_pcp:262 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Node 0 active_anon:164060kB inactive_anon:1484kB active_file:60kB
inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):8kB
mapped:164588kB dirty:0kB writeback:0kB shmem:1516kB shmem_thp: 0kB
shmem_pmdmapped: 0kB anon_thp: 153600kB 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.118+0xb7/0x1bd mm/page_alloc.c:3426
2815
6318 6318
Node 0 DMA32 free:25228kB min:30036kB low:37544kB high:45052kB
active_anon:2048kB inactive_anon:0kB active_file:0kB inactive_file:0kB
unevictable:0kB writepending:0kB present:3129332kB managed:2887244kB
mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB
local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 3503
__alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
3503
Node 0
Normal free:14016kB min:37376kB low:46720kB high:56064kB
active_anon:162012kB inactive_anon:1484kB active_file:60kB
inactive_file:64kB unevictable:0kB writepending:0kB present:4718592kB
managed:3587472kB mlocked:0kB kernel_stack:5184kB pagetables:2420kB
bounce:0kB free_pcp:800kB local_pcp:332kB 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)
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
3*4096kB
(M)
= 15908kB
Node 0
DMA32:
3*4kB
(M)
2*8kB
(M)
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0x91/0x8c0 mm/slab.c:2677
1*16kB
(M)
fallback_alloc+0x203/0x2e0 mm/slab.c:3219
1*32kB (M)
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
3*64kB (UM)
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
3*128kB
(M)
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
2*256kB
(M)
3*512kB
(M)
4*1024kB (UM)
3*2048kB
(UM)
3*4096kB
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
(M)
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
= 25228kB
addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
Node 0
Normal:
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
866*4kB
(ME)
469*8kB
(UME)
197*16kB
(UME)
59*32kB
(UME)
18*64kB (ME)
3*128kB
(M)
1*256kB
(U)
0*512kB
0*1024kB
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
0*2048kB
0*4096kB
= 14048kB
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
412 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
343323 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)
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
syz-fuzzer cpuset=
/
__do_softirq+0x30b/0xad8 kernel/softirq.c:292
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_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 76 b6 3e ff e9 c5 fe ff ff e8 8d 13 c3 ff 48
83 3d 2d 62 b0 07 00 0f 84 3b 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00
e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 b2 73
RSP: 0000:ffff8801a3e4f748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801a3e46f40 RDI: 0000000000000282
RBP: ffff8801a3e4f7b0 R08: ffff8801a3e466c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
skb_clone+0x1bb/0x500 net/core/skbuff.c:1283
____bpf_clone_redirect net/core/filter.c:2075 [inline]
bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
bpf_prog_01d53e16fc18f1d9+0x5cd/0x1000
CPU: 1 PID: 5338 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #94
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-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|
__GFP_COMP), nodemask=(null)
warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426
syz-executor0 cpuset=
syz0
mems_allowed=0
__alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0x91/0x8c0 mm/slab.c:2677
fallback_alloc+0x203/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x30b/0xad8 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
</IRQ>
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0xd/0x50 kernel/kcov.c:100
Code: c1 01 4a 89 7c 10 e0 4a 89 74 10 e8 4a 89 54 10 f0 4a 89 4c d8 20 4c
89 08 5d c3 66 90 55 48 89 e5 65 48 8b 04 25 40 ee 01 00 <65> 8b 15 8c 1e
83 7e 81 e2 00 01 1f 00 48 8b 75 08 75 2b 8b 90 d0
RSP: 0000:ffff8801bb33dc18 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff8801bb31e200 RBX: 1ffff10037667b86 RCX: ffffffff81a788ad
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff8801bb33dc18 R08: ffff8801bb31e200 R09: ffffed003b5a4732
R10: ffffed003b5a4732 R11: ffff8801dad23993 R12: 0000000000000001
R13: 0000000000000000 R14: 1ffff10037667b92 R15: dead000000000100
rcu_read_unlock include/linux/rcupdate.h:679 [inline]
page_evictable+0x36b/0x540 mm/vmscan.c:4150
shrink_active_list+0x845/0x1c20 mm/vmscan.c:2106
shrink_list mm/vmscan.c:2250 [inline]
shrink_node_memcg+0x803/0x18e0 mm/vmscan.c:2517
shrink_node+0x3bc/0x16b0 mm/vmscan.c:2732
shrink_zones mm/vmscan.c:2964 [inline]
do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3026
try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3241
__perform_reclaim mm/page_alloc.c:3769 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline]
__alloc_pages_slowpath+0x993/0x2d80 mm/page_alloc.c:4191
__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:6257
__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:000000c420057ab8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 000000000045df89
RDX: 000000c420057ac0 RSI: 000000c420057bf0 RDI: 0000000000000011
RBP: 000000c420033e90 R08: 0000000000000003 R09: 000000c420000d80
R10: 00000000ffffffff R11: 0000000000000246 R12: 000000c425e49dd8
R13: 000000000000000f R14: 0000000000b79720 R15: ffffffffffffffff
CPU: 0 PID: 7087 Comm: syz-executor0 Not tainted 4.19.0-rc2+ #94
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:41015 inactive_anon:371 isolated_anon:0
active_file:15 inactive_file:16 isolated_file:2
unevictable:0 dirty:0 writeback:0 unstable:0
slab_reclaimable:8542 slab_unreclaimable:1483152
mapped:41147 shmem:379 pagetables:605 bounce:0
free:13788 free_pcp:262 free_cma:0
Call Trace:
Node 0 active_anon:164060kB inactive_anon:1484kB active_file:60kB
inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):8kB
mapped:164588kB dirty:0kB writeback:0kB shmem:1516kB shmem_thp: 0kB
shmem_pmdmapped: 0kB anon_thp: 153600kB writeback_tmp:0kB unstable:0kB
all_unreclaimable? yes
<IRQ>
Node 0
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB
inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB
writepending:0kB present:15992kB managed:15908kB mlocked:0kB
kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB
free_cma:0kB
lowmem_reserve[]:
warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426
0 2815
6318
6318
Node 0
DMA32 free:25228kB min:30036kB low:37544kB high:45052kB active_anon:2048kB
inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB
writepending:0kB present:3129332kB managed:2887244kB mlocked:0kB
kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB
free_cma:0kB
__alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
lowmem_reserve[]:
0
0
3503
3503
Node 0
Normal free:14016kB min:37376kB low:46720kB high:56064kB
active_anon:162012kB inactive_anon:1484kB active_file:60kB
inactive_file:64kB unevictable:0kB writepending:0kB present:4718592kB
managed:3587472kB mlocked:0kB kernel_stack:5184kB pagetables:2420kB
bounce:0kB free_pcp:800kB local_pcp:332kB 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
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
(U)
0*512kB
1*1024kB
(U)
1*2048kB (M)
3*4096kB
(M)
= 15908kB
__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
Node 0
DMA32:
fallback_alloc+0x203/0x2e0 mm/slab.c:3219
3*4kB
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
(M)
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
2*8kB
(M)
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
1*16kB
(M)
1*32kB
(M) 3*64kB
(UM)
3*128kB
(M)
2*256kB
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
(M)
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
3*512kB
addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
(M)
4*1024kB
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
(UM)
3*2048kB
(UM)
3*4096kB
(M)
= 25228kB
Node 0
Normal:
866*4kB
(ME)
469*8kB
(UME)
197*16kB
(UME)
59*32kB
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
(UME)
18*64kB
(ME)
3*128kB
(M)
1*256kB
(U)
0*512kB
0*1024kB
0*2048kB
0*4096kB
= 14048kB
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
412 total pagecache pages
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
0 pages in swap cache
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
343323 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|
__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=
/
mems_allowed=0
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
</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 76 b6 3e ff e9 c5 fe ff ff e8 8d 13 c3 ff 48
83 3d 2d 62 b0 07 00 0f 84 3b 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00
e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 b2 73
RSP: 0000:ffff8801a3e4f748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801a3e46f40 RDI: 0000000000000282
RBP: ffff8801a3e4f7b0 R08: ffff8801a3e466c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
skb_clone+0x1bb/0x500 net/core/skbuff.c:1283
____bpf_clone_redirect net/core/filter.c:2075 [inline]
bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
bpf_prog_01d53e16fc18f1d9+0x5cd/0x1000
CPU: 1 PID: 5338 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #94
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
warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426
syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|
__GFP_COMP), nodemask=(null)
syz-executor0 cpuset=
syz0
mems_allowed=0
__alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0x91/0x8c0 mm/slab.c:2677
fallback_alloc+0x203/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x30b/0xad8 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
</IRQ>
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0xd/0x50 kernel/kcov.c:100
Code: c1 01 4a 89 7c 10 e0 4a 89 74 10 e8 4a 89 54 10 f0 4a 89 4c d8 20 4c
89 08 5d c3 66 90 55 48 89 e5 65 48 8b 04 25 40 ee 01 00 <65> 8b 15 8c 1e
83 7e 81 e2 00 01 1f 00 48 8b 75 08 75 2b 8b 90 d0
RSP: 0000:ffff8801bb33dc18 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff8801bb31e200 RBX: 1ffff10037667b86 RCX: ffffffff81a788ad
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff8801bb33dc18 R08: ffff8801bb31e200 R09: ffffed003b5a4732
R10: ffffed003b5a4732 R11: ffff8801dad23993 R12: 0000000000000001
R13: 0000000000000000 R14: 1ffff10037667b92 R15: dead000000000100
rcu_read_unlock include/linux/rcupdate.h:679 [inline]
page_evictable+0x36b/0x540 mm/vmscan.c:4150
shrink_active_list+0x845/0x1c20 mm/vmscan.c:2106
shrink_list mm/vmscan.c:2250 [inline]
shrink_node_memcg+0x803/0x18e0 mm/vmscan.c:2517
shrink_node+0x3bc/0x16b0 mm/vmscan.c:2732
shrink_zones mm/vmscan.c:2964 [inline]
do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3026
try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3241
__perform_reclaim mm/page_alloc.c:3769 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline]
__alloc_pages_slowpath+0x993/0x2d80 mm/page_alloc.c:4191
__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:6257
__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
---
This bug is generated by a bot. It may contain errors.
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