INFO: rcu detected stall in addrconf_rs_timer
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syzbot
Sep 15, 2018, 5:13:04 PM9/15/18
to syzkaller-upst...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: 28619527b8a7 Merge git://git.kernel.org/pub/scm/linux/kern..
git tree: bpf
console output: https://syzkaller.appspot.com/x/log.txt?x=11cca666400000
kernel config: https://syzkaller.appspot.com/x/.config?x=8f59875069d721b6
dashboard link: https://syzkaller.appspot.com/bug?extid=8910fedf18f0686a82e9
compiler: gcc (GCC) 8.0.1 20180413 (experimental)
CC: [douly...@cn.fujitsu.com h...@zytor.com jgr...@suse.com
len....@intel.com linux-...@vger.kernel.org mi...@redhat.com
tg...@linutronix.de ville....@linux.intel.com x...@kernel.org]
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+8910fe...@syzkaller.appspotmail.com
CPU: 1 PID: 5362 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #51
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
rcu:
<IRQ>
(detected by 0, t=10735 jiffies, g=14601, q=55)
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
rcu: All QSes seen, last rcu_preempt kthread activity 9525
(4294967050-4294957525), jiffies_till_next_fqs=1, root ->qsmask 0x0
syz-executor3 R
warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426
running task
20984 8908 5388 0x8000000c
Call Trace:
<IRQ>
sched_show_task.cold.83+0x2b6/0x30a kernel/sched/core.c:5296
__alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
print_other_cpu_stall.cold.79+0xa83/0xba5 kernel/rcu/tree.c:1430
__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
check_cpu_stall kernel/rcu/tree.c:1557 [inline]
__rcu_pending kernel/rcu/tree.c:3276 [inline]
rcu_pending kernel/rcu/tree.c:3319 [inline]
rcu_check_callbacks+0xafc/0x1990 kernel/rcu/tree.c:2665
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
update_process_times+0x2d/0x70 kernel/time/timer.c:1636
tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:412
tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
__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
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
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
</IRQ>
RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:798 [inline]
RIP: 0010:preempt_schedule_irq+0x7d/0x110 kernel/sched/core.c:3699
Code: 00 e8 37 60 97 f9 e8 b2 b1 c6 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00
75 7b 48 83 3d 54 00 94 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00
e8 f9 d1 ff ff 41 80 7d 00 00 75 6a 48 83 3d 2a 00
RSP: 0000:ffff8801ba9fe150 EFLAGS: 00000286
ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff12a4537 RBX: 0000000000000000 RCX: 1ffff1003b1c01ee
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d8e00efc
RBP: ffff8801ba9fe178 R08: ffff8801d8e00f70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d8e00680 R12: dffffc0000000000
R13: fffffbfff12a4536 R14: ffffffff895229b8 R15: ffffffff895229b0
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
retint_kernel+0x1b/0x2d
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
RIP: 0010:arch_local_irq_restore+0x4a/0x52
arch/x86/include/asm/paravirt.h:788
Code: 40 7e 0f 85 32 ff ff ff e8 a5 c3 3e ff e9 28 ff ff ff e8 bc 20 c3 ff
48 83 3d 5c 6f 90 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 9a 42
Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 e9 3a 0a fa 48 83 3d e9 31 9a 01 00
75 07 e8 6a d7 c6 f9 0f 0b e8 63 d7 c6 f9 48 89 df 57 9d <0f> 1f 44 00 00
5b 5d c3 4c 89 45 d0 e8 9d 3a 0a fa 4c 8b 45 d0 e9
RSP: 0000:ffff8801dae07450 EFLAGS: 00000282
RSP: 0000:ffff8801ba9fe238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff10033c9ed29
RAX: ffff8801d8e00680 RBX: 0000000000000293 RCX: 1ffff1003b1c01ee
RDX: 0000000000000000 RSI: ffffffff87b7f7cd RDI: 0000000000000293
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000282
RBP: ffff8801dae074c0 R08: ffff88019e4f6948 R09: 0000000000000002
RBP: ffff8801ba9fe240 R08: ffff8801d8e00f70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d8e00680 R12: 0000000000000293
R10: 0000000000000000 R11: ffff88019e4f6080 R12: ffff8801d9be7680
R13: ffff8801d9be7680 R14: 0000000000000000 R15: 0000000000000282
R13: 0000000000000200 R14: 0000000000000001 R15: ffffffff895229a0
dump_stack+0x26a/0x2b4 lib/dump_stack.c:118
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
dump_header+0x27b/0xf72 mm/oom_kill.c:441
oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:952
out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112
__alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
__alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235
alloc_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
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
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
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
page_cache_read mm/filemap.c:2385 [inline]
filemap_fault+0x1594/0x25f0 mm/filemap.c:2569
__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
ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6257
__do_fault+0x100/0x6b0 mm/memory.c:3240
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 06 a4 3e ff e9 c5 fe ff ff e8 1d 01 c3 ff 48
83 3d bd 4f 90 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 9a 42
RSP: 0000:ffff88019f2f7748 EFLAGS: 00000282
ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88019e4f6900 RDI: 0000000000000282
RBP: ffff88019f2f77b0 R08: ffff88019e4f6080 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
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
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
skb_clone+0x1bb/0x500 net/core/skbuff.c:1283
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
____bpf_clone_redirect net/core/filter.c:2075 [inline]
bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
bpf_prog_bebbfe2050753572+0xc7c/0x1000
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161
RIP: 0033:0x45ddf3
Code: Bad RIP value.
RSP: 002b:000000c42001fea0 EFLAGS: 00010202
RAX: ffffffffffffff92 RBX: 0000000038144a2a RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014947a0
RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
warn_alloc_show_mem: 1 callbacks suppressed
Mem-Info:
active_anon:44712 inactive_anon:372 isolated_anon:0
active_file:15 inactive_file:12 isolated_file:0
unevictable:0 dirty:0 writeback:0 unstable:0
slab_reclaimable:8838 slab_unreclaimable:1478678
mapped:8387 shmem:380 pagetables:397 bounce:0
free:13792 free_pcp:444 free_cma:0
Node 0 active_anon:178848kB inactive_anon:1488kB active_file:60kB
inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB
mapped:33548kB dirty:0kB writeback:0kB shmem:1520kB shmem_thp: 0kB
shmem_pmdmapped: 0kB anon_thp: 165888kB 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 2817 6321 6321
Node 0 DMA32 free:25276kB min:30048kB low:37560kB high:45072kB
active_anon:2048kB inactive_anon:0kB active_file:0kB inactive_file:0kB
unevictable:0kB writepending:0kB present:3129332kB managed:2889304kB
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:13984kB min:37364kB low:46704kB high:56044kB
active_anon:176800kB inactive_anon:1488kB active_file:60kB
inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB
managed:3587728kB mlocked:0kB kernel_stack:4992kB pagetables:1588kB
bounce:0kB free_pcp:1528kB local_pcp:1272kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U)
1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
Node 0 DMA32: 3*4kB (UM) 0*8kB 3*16kB (M) 2*32kB (UM) 3*64kB (UM) 3*128kB
(M) 2*256kB (M) 3*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) =
25276kB
Node 0 Normal: 1020*4kB (UMEH) 383*8kB (MEH) 159*16kB (UMEH) 83*32kB (UMEH)
19*64kB (UM) 4*128kB (M) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB =
14072kB
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
407 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
342744 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
CPU: 1 PID: 5362 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #51
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
__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
rcu: rcu_preempt kthread starved for 9525 jiffies! g14601 f0x2
RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: RCU grace-period kthread stack dump:
rcu_preempt R
running task
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
</IRQ>
RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:798 [inline]
RIP: 0010:preempt_schedule_irq+0x7d/0x110 kernel/sched/core.c:3699
Code: 00 e8 37 60 97 f9 e8 b2 b1 c6 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00
75 7b 48 83 3d 54 00 94 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00
e8 f9 d1 ff ff 41 80 7d 00 00 75 6a 48 83 3d 2a 00
RSP: 0000:ffff8801ba9fe150 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff12a4537 RBX: 0000000000000000 RCX: 1ffff1003b1c01ee
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d8e00efc
RBP: ffff8801ba9fe178 R08: ffff8801d8e00f70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d8e00680 R12: dffffc0000000000
R13: fffffbfff12a4536 R14: ffffffff895229b8 R15: ffffffff895229b0
retint_kernel+0x1b/0x2d
RIP: 0010:arch_local_irq_restore+0x4a/0x52
arch/x86/include/asm/paravirt.h:788
Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 e9 3a 0a fa 48 83 3d e9 31 9a 01 00
75 07 e8 6a d7 c6 f9 0f 0b e8 63 d7 c6 f9 48 89 df 57 9d <0f> 1f 44 00 00
5b 5d c3 4c 89 45 d0 e8 9d 3a 0a fa 4c 8b 45 d0 e9
RSP: 0000:ffff8801ba9fe238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
RAX: ffff8801d8e00680 RBX: 0000000000000293 RCX: 1ffff1003b1c01ee
RDX: 0000000000000000 RSI: ffffffff87b7f7cd RDI: 0000000000000293
RBP: ffff8801ba9fe240 R08: ffff8801d8e00f70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d8e00680 R12: 0000000000000293
R13: 0000000000000200 R14: 0000000000000001 R15: ffffffff895229a0
dump_stack+0x26a/0x2b4 lib/dump_stack.c:118
dump_header+0x27b/0xf72 mm/oom_kill.c:441
23096 10 2 0x80000000
Call Trace:
context_switch kernel/sched/core.c:2825 [inline]
__schedule+0x86c/0x1ed0 kernel/sched/core.c:3473
oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:952
schedule+0xfe/0x460 kernel/sched/core.c:3517
out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112
__alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
__alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
alloc_pages_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
schedule_timeout+0x140/0x260 kernel/time/timer.c:1804
rcu_gp_kthread+0x9d9/0x2310 kernel/rcu/tree.c:2194
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: 0033:0x45ddf3
Code: Bad RIP value.
RSP: 002b:000000c42001fea0 EFLAGS: 00010202
RAX: ffffffffffffff92 RBX: 0000000038144a2a RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014947a0
RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
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
CPU: 1 PID: 5362 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #51
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
__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
kthread+0x35a/0x420 kernel/kthread.c:246
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
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|
__GFP_COMP), nodemask=(null)
syz-executor3 cpuset=
syz3
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
mems_allowed=0
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x30b/0xad8 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
</IRQ>
RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:798 [inline]
RIP: 0010:preempt_schedule_irq+0x7d/0x110 kernel/sched/core.c:3699
Code: 00 e8 37 60 97 f9 e8 b2 b1 c6 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00
75 7b 48 83 3d 54 00 94 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00
e8 f9 d1 ff ff 41 80 7d 00 00 75 6a 48 83 3d 2a 00
RSP: 0000:ffff8801ba9fe150 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff12a4537 RBX: 0000000000000000 RCX: 1ffff1003b1c01ee
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d8e00efc
RBP: ffff8801ba9fe178 R08: ffff8801d8e00f70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d8e00680 R12: dffffc0000000000
R13: fffffbfff12a4536 R14: ffffffff895229b8 R15: ffffffff895229b0
retint_kernel+0x1b/0x2d
RIP: 0010:arch_local_irq_restore+0x4a/0x52
arch/x86/include/asm/paravirt.h:788
Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 e9 3a 0a fa 48 83 3d e9 31 9a 01 00
75 07 e8 6a d7 c6 f9 0f 0b e8 63 d7 c6 f9 48 89 df 57 9d <0f> 1f 44 00 00
5b 5d c3 4c 89 45 d0 e8 9d 3a 0a fa 4c 8b 45 d0 e9
RSP: 0000:ffff8801ba9fe238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
RAX: ffff8801d8e00680 RBX: 0000000000000293 RCX: 1ffff1003b1c01ee
RDX: 0000000000000000 RSI: ffffffff87b7f7cd RDI: 0000000000000293
RBP: ffff8801ba9fe240 R08: ffff8801d8e00f70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d8e00680 R12: 0000000000000293
R13: 0000000000000200 R14: 0000000000000001 R15: ffffffff895229a0
dump_stack+0x26a/0x2b4 lib/dump_stack.c:118
dump_header+0x27b/0xf72 mm/oom_kill.c:441
oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:952
out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112
__alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
__alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
alloc_pages_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: 0033:0x45ddf3
Code: Bad RIP value.
RSP: 002b:000000c42001fea0 EFLAGS: 00010202
RAX: ffffffffffffff92 RBX: 0000000038144a2a RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014947a0
RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
CPU: 0 PID: 8908 Comm: syz-executor3 Not tainted 4.19.0-rc2+ #51
warn_alloc_show_mem: 1 callbacks suppressed
Mem-Info:
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
active_anon:44712 inactive_anon:372 isolated_anon:0
active_file:15 inactive_file:12 isolated_file:0
unevictable:0 dirty:0 writeback:0 unstable:0
slab_reclaimable:8838 slab_unreclaimable:1478678
mapped:8387 shmem:380 pagetables:397 bounce:0
free:13792 free_pcp:444 free_cma:0
<IRQ>
Node 0 active_anon:178848kB inactive_anon:1488kB active_file:60kB
inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB
mapped:33548kB dirty:0kB writeback:0kB shmem:1520kB shmem_thp: 0kB
shmem_pmdmapped: 0kB anon_thp: 165888kB 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 2817 6321 6321
Node 0 DMA32 free:25276kB min:30048kB low:37560kB high:45072kB
active_anon:2048kB inactive_anon:0kB active_file:0kB inactive_file:0kB
unevictable:0kB writepending:0kB present:3129332kB managed:2889304kB
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:13984kB min:37364kB low:46704kB high:56044kB
active_anon:176800kB inactive_anon:1488kB active_file:60kB
inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB
managed:3587728kB mlocked:0kB kernel_stack:4992kB pagetables:1588kB
bounce:0kB free_pcp:1528kB local_pcp:1272kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U)
1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
Node 0 DMA32: 3*4kB (UM) 0*8kB 3*16kB (M) 2*32kB (UM) 3*64kB (UM) 3*128kB
(M) 2*256kB (M) 3*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) =
25276kB
Node 0 Normal: 1020*4kB (UMEH) 383*8kB (MEH) 159*16kB (UMEH) 83*32kB (UMEH)
19*64kB (UM) 4*128kB (M) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB =
14072kB
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
407 total pagecache pages
0 pages in swap cache
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
Swap cache stats: add 0, delete 0, find 0/0
Free swap = 0kB
warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342744 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
__alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
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: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: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 06 a4 3e ff e9 c5 fe ff ff e8 1d 01 c3 ff 48
83 3d bd 4f 90 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 9a 42
RSP: 0000:ffff88019f2f7748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88019e4f6900 RDI: 0000000000000282
RBP: ffff88019f2f77b0 R08: ffff88019e4f6080 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_bebbfe2050753572+0xc7c/0x1000
CPU: 1 PID: 5362 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #51
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-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|
__GFP_COMP), nodemask=(null)
syz-executor3 cpuset=
syz3
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:arch_local_irq_enable arch/x86/include/asm/paravirt.h:798 [inline]
RIP: 0010:preempt_schedule_irq+0x7d/0x110 kernel/sched/core.c:3699
Code: 00 e8 37 60 97 f9 e8 b2 b1 c6 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00
75 7b 48 83 3d 54 00 94 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00
e8 f9 d1 ff ff 41 80 7d 00 00 75 6a 48 83 3d 2a 00
RSP: 0000:ffff8801ba9fe150 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff12a4537 RBX: 0000000000000000 RCX: 1ffff1003b1c01ee
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d8e00efc
RBP: ffff8801ba9fe178 R08: ffff8801d8e00f70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d8e00680 R12: dffffc0000000000
R13: fffffbfff12a4536 R14: ffffffff895229b8 R15: ffffffff895229b0
retint_kernel+0x1b/0x2d
RIP: 0010:arch_local_irq_restore+0x4a/0x52
arch/x86/include/asm/paravirt.h:788
Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 e9 3a 0a fa 48 83 3d e9 31 9a 01 00
75 07 e8 6a d7 c6 f9 0f 0b e8 63 d7 c6 f9 48 89 df 57 9d <0f> 1f 44 00 00
5b 5d c3 4c 89 45 d0 e8 9d 3a 0a fa 4c 8b 45 d0 e9
RSP: 0000:ffff8801ba9fe238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
RAX: ffff8801d8e00680 RBX: 0000000000000293 RCX: 1ffff1003b1c01ee
RDX: 0000000000000000 RSI: ffffffff87b7f7cd RDI: 0000000000000293
RBP: ffff8801ba9fe240 R08: ffff8801d8e00f70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d8e00680 R12: 0000000000000293
R13: 0000000000000200 R14: 0000000000000001 R15: ffffffff895229a0
dump_stack+0x26a/0x2b4 lib/dump_stack.c:118
dump_header+0x27b/0xf72 mm/oom_kill.c:441
oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:952
out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112
__alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
__alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
alloc_pages_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: 0033:0x45ddf3
Code: Bad RIP value.
RSP: 002b:000000c42001fea0 EFLAGS: 00010202
RAX: ffffffffffffff92 RBX: 0000000038144a2a RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014947a0
RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 0 PID: 8908 Comm: syz-executor3 Not tainted 4.19.0-rc2+ #51
Mem-Info:
active_anon:44712 inactive_anon:372 isolated_anon:0
active_file:15 inactive_file:12 isolated_file:0
unevictable:0 dirty:0 writeback:0 unstable:0
slab_reclaimable:8838 slab_unreclaimable:1478678
mapped:8387 shmem:380 pagetables:397 bounce:0
free:13792 free_pcp:444 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
Node 0 active_anon:178848kB inactive_anon:1488kB active_file:60kB
inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB
mapped:33548kB dirty:0kB writeback:0kB shmem:1520kB shmem_thp: 0kB
shmem_pmdmapped: 0kB anon_thp: 165888kB writeback_tmp:0kB unstable:0kB
all_unreclaimable? yes
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
2817
warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426
6321 6321
Node 0
DMA32 free:25276kB min:30048kB low:37560kB high:45072kB active_anon:2048kB
inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB
writepending:0kB present:3129332kB managed:2889304kB 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:13984kB min:37364kB low:46704kB high:56044kB
active_anon:176800kB inactive_anon:1488kB active_file:60kB
inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB
managed:3587728kB mlocked:0kB kernel_stack:4992kB pagetables:1588kB
bounce:0kB free_pcp:1528kB local_pcp:1272kB free_cma:0kB
lowmem_reserve[]: 0
0 0
0
Node 0
DMA: 1*4kB
(U) 0*8kB
0*16kB 1*32kB
(U) 2*64kB
(U) 1*128kB
(U) 1*256kB
(U) 0*512kB
1*1024kB (U)
1*2048kB (M)
3*4096kB (M)
= 15908kB
Node 0
DMA32: 3*4kB
(UM) 0*8kB
3*16kB (M)
2*32kB (UM)
3*64kB (UM)
3*128kB (M)
2*256kB (M)
3*512kB (M)
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
4*1024kB (UM)
1*2048kB (M) 4*4096kB
(M) = 25276kB
Node 0 Normal:
1020*4kB
(UMEH) 383*8kB
__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
(MEH)
159*16kB (UMEH)
fallback_alloc+0x203/0x2e0 mm/slab.c:3219
83*32kB (UMEH)
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
19*64kB (UM)
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
4*128kB (M)
0*256kB 0*512kB
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
0*1024kB 0*2048kB
0*4096kB = 14072kB
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
407 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
342744 pages reserved
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|
__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
/
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 06 a4 3e ff e9 c5 fe ff ff e8 1d 01 c3 ff 48
83 3d bd 4f 90 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 9a 42
RSP: 0000:ffff88019f2f7748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88019e4f6900 RDI: 0000000000000282
RBP: ffff88019f2f77b0 R08: ffff88019e4f6080 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
skb_clone+0x1bb/0x500 net/core/skbuff.c:1283
---
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: 28619527b8a7 Merge git://git.kernel.org/pub/scm/linux/kern..
git tree: bpf
console output: https://syzkaller.appspot.com/x/log.txt?x=11cca666400000
kernel config: https://syzkaller.appspot.com/x/.config?x=8f59875069d721b6
dashboard link: https://syzkaller.appspot.com/bug?extid=8910fedf18f0686a82e9
compiler: gcc (GCC) 8.0.1 20180413 (experimental)
CC: [douly...@cn.fujitsu.com h...@zytor.com jgr...@suse.com
len....@intel.com linux-...@vger.kernel.org mi...@redhat.com
tg...@linutronix.de ville....@linux.intel.com x...@kernel.org]
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+8910fe...@syzkaller.appspotmail.com
CPU: 1 PID: 5362 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #51
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
rcu:
<IRQ>
(detected by 0, t=10735 jiffies, g=14601, q=55)
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
rcu: All QSes seen, last rcu_preempt kthread activity 9525
(4294967050-4294957525), jiffies_till_next_fqs=1, root ->qsmask 0x0
syz-executor3 R
warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426
running task
20984 8908 5388 0x8000000c
Call Trace:
<IRQ>
sched_show_task.cold.83+0x2b6/0x30a kernel/sched/core.c:5296
__alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
print_other_cpu_stall.cold.79+0xa83/0xba5 kernel/rcu/tree.c:1430
__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
check_cpu_stall kernel/rcu/tree.c:1557 [inline]
__rcu_pending kernel/rcu/tree.c:3276 [inline]
rcu_pending kernel/rcu/tree.c:3319 [inline]
rcu_check_callbacks+0xafc/0x1990 kernel/rcu/tree.c:2665
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
update_process_times+0x2d/0x70 kernel/time/timer.c:1636
tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:412
tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
__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
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
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
</IRQ>
RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:798 [inline]
RIP: 0010:preempt_schedule_irq+0x7d/0x110 kernel/sched/core.c:3699
Code: 00 e8 37 60 97 f9 e8 b2 b1 c6 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00
75 7b 48 83 3d 54 00 94 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00
e8 f9 d1 ff ff 41 80 7d 00 00 75 6a 48 83 3d 2a 00
RSP: 0000:ffff8801ba9fe150 EFLAGS: 00000286
ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff12a4537 RBX: 0000000000000000 RCX: 1ffff1003b1c01ee
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d8e00efc
RBP: ffff8801ba9fe178 R08: ffff8801d8e00f70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d8e00680 R12: dffffc0000000000
R13: fffffbfff12a4536 R14: ffffffff895229b8 R15: ffffffff895229b0
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
retint_kernel+0x1b/0x2d
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
RIP: 0010:arch_local_irq_restore+0x4a/0x52
arch/x86/include/asm/paravirt.h:788
Code: 40 7e 0f 85 32 ff ff ff e8 a5 c3 3e ff e9 28 ff ff ff e8 bc 20 c3 ff
48 83 3d 5c 6f 90 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 9a 42
Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 e9 3a 0a fa 48 83 3d e9 31 9a 01 00
75 07 e8 6a d7 c6 f9 0f 0b e8 63 d7 c6 f9 48 89 df 57 9d <0f> 1f 44 00 00
5b 5d c3 4c 89 45 d0 e8 9d 3a 0a fa 4c 8b 45 d0 e9
RSP: 0000:ffff8801dae07450 EFLAGS: 00000282
RSP: 0000:ffff8801ba9fe238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff10033c9ed29
RAX: ffff8801d8e00680 RBX: 0000000000000293 RCX: 1ffff1003b1c01ee
RDX: 0000000000000000 RSI: ffffffff87b7f7cd RDI: 0000000000000293
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000282
RBP: ffff8801dae074c0 R08: ffff88019e4f6948 R09: 0000000000000002
RBP: ffff8801ba9fe240 R08: ffff8801d8e00f70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d8e00680 R12: 0000000000000293
R10: 0000000000000000 R11: ffff88019e4f6080 R12: ffff8801d9be7680
R13: ffff8801d9be7680 R14: 0000000000000000 R15: 0000000000000282
R13: 0000000000000200 R14: 0000000000000001 R15: ffffffff895229a0
dump_stack+0x26a/0x2b4 lib/dump_stack.c:118
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
dump_header+0x27b/0xf72 mm/oom_kill.c:441
oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:952
out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112
__alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
__alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235
alloc_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
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
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
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
page_cache_read mm/filemap.c:2385 [inline]
filemap_fault+0x1594/0x25f0 mm/filemap.c:2569
__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
ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6257
__do_fault+0x100/0x6b0 mm/memory.c:3240
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 06 a4 3e ff e9 c5 fe ff ff e8 1d 01 c3 ff 48
83 3d bd 4f 90 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 9a 42
RSP: 0000:ffff88019f2f7748 EFLAGS: 00000282
ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88019e4f6900 RDI: 0000000000000282
RBP: ffff88019f2f77b0 R08: ffff88019e4f6080 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
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
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
skb_clone+0x1bb/0x500 net/core/skbuff.c:1283
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
____bpf_clone_redirect net/core/filter.c:2075 [inline]
bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
bpf_prog_bebbfe2050753572+0xc7c/0x1000
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161
RIP: 0033:0x45ddf3
Code: Bad RIP value.
RSP: 002b:000000c42001fea0 EFLAGS: 00010202
RAX: ffffffffffffff92 RBX: 0000000038144a2a RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014947a0
RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
warn_alloc_show_mem: 1 callbacks suppressed
Mem-Info:
active_anon:44712 inactive_anon:372 isolated_anon:0
active_file:15 inactive_file:12 isolated_file:0
unevictable:0 dirty:0 writeback:0 unstable:0
slab_reclaimable:8838 slab_unreclaimable:1478678
mapped:8387 shmem:380 pagetables:397 bounce:0
free:13792 free_pcp:444 free_cma:0
Node 0 active_anon:178848kB inactive_anon:1488kB active_file:60kB
inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB
mapped:33548kB dirty:0kB writeback:0kB shmem:1520kB shmem_thp: 0kB
shmem_pmdmapped: 0kB anon_thp: 165888kB 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 2817 6321 6321
Node 0 DMA32 free:25276kB min:30048kB low:37560kB high:45072kB
active_anon:2048kB inactive_anon:0kB active_file:0kB inactive_file:0kB
unevictable:0kB writepending:0kB present:3129332kB managed:2889304kB
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:13984kB min:37364kB low:46704kB high:56044kB
active_anon:176800kB inactive_anon:1488kB active_file:60kB
inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB
managed:3587728kB mlocked:0kB kernel_stack:4992kB pagetables:1588kB
bounce:0kB free_pcp:1528kB local_pcp:1272kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U)
1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
Node 0 DMA32: 3*4kB (UM) 0*8kB 3*16kB (M) 2*32kB (UM) 3*64kB (UM) 3*128kB
(M) 2*256kB (M) 3*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) =
25276kB
Node 0 Normal: 1020*4kB (UMEH) 383*8kB (MEH) 159*16kB (UMEH) 83*32kB (UMEH)
19*64kB (UM) 4*128kB (M) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB =
14072kB
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
407 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
342744 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
CPU: 1 PID: 5362 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #51
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
__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
rcu: rcu_preempt kthread starved for 9525 jiffies! g14601 f0x2
RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: RCU grace-period kthread stack dump:
rcu_preempt R
running task
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
</IRQ>
RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:798 [inline]
RIP: 0010:preempt_schedule_irq+0x7d/0x110 kernel/sched/core.c:3699
Code: 00 e8 37 60 97 f9 e8 b2 b1 c6 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00
75 7b 48 83 3d 54 00 94 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00
e8 f9 d1 ff ff 41 80 7d 00 00 75 6a 48 83 3d 2a 00
RSP: 0000:ffff8801ba9fe150 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff12a4537 RBX: 0000000000000000 RCX: 1ffff1003b1c01ee
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d8e00efc
RBP: ffff8801ba9fe178 R08: ffff8801d8e00f70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d8e00680 R12: dffffc0000000000
R13: fffffbfff12a4536 R14: ffffffff895229b8 R15: ffffffff895229b0
retint_kernel+0x1b/0x2d
RIP: 0010:arch_local_irq_restore+0x4a/0x52
arch/x86/include/asm/paravirt.h:788
Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 e9 3a 0a fa 48 83 3d e9 31 9a 01 00
75 07 e8 6a d7 c6 f9 0f 0b e8 63 d7 c6 f9 48 89 df 57 9d <0f> 1f 44 00 00
5b 5d c3 4c 89 45 d0 e8 9d 3a 0a fa 4c 8b 45 d0 e9
RSP: 0000:ffff8801ba9fe238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
RAX: ffff8801d8e00680 RBX: 0000000000000293 RCX: 1ffff1003b1c01ee
RDX: 0000000000000000 RSI: ffffffff87b7f7cd RDI: 0000000000000293
RBP: ffff8801ba9fe240 R08: ffff8801d8e00f70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d8e00680 R12: 0000000000000293
R13: 0000000000000200 R14: 0000000000000001 R15: ffffffff895229a0
dump_stack+0x26a/0x2b4 lib/dump_stack.c:118
dump_header+0x27b/0xf72 mm/oom_kill.c:441
23096 10 2 0x80000000
Call Trace:
context_switch kernel/sched/core.c:2825 [inline]
__schedule+0x86c/0x1ed0 kernel/sched/core.c:3473
oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:952
schedule+0xfe/0x460 kernel/sched/core.c:3517
out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112
__alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
__alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
alloc_pages_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
schedule_timeout+0x140/0x260 kernel/time/timer.c:1804
rcu_gp_kthread+0x9d9/0x2310 kernel/rcu/tree.c:2194
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: 0033:0x45ddf3
Code: Bad RIP value.
RSP: 002b:000000c42001fea0 EFLAGS: 00010202
RAX: ffffffffffffff92 RBX: 0000000038144a2a RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014947a0
RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
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
CPU: 1 PID: 5362 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #51
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
__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
kthread+0x35a/0x420 kernel/kthread.c:246
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
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|
__GFP_COMP), nodemask=(null)
syz-executor3 cpuset=
syz3
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
mems_allowed=0
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x30b/0xad8 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
</IRQ>
RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:798 [inline]
RIP: 0010:preempt_schedule_irq+0x7d/0x110 kernel/sched/core.c:3699
Code: 00 e8 37 60 97 f9 e8 b2 b1 c6 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00
75 7b 48 83 3d 54 00 94 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00
e8 f9 d1 ff ff 41 80 7d 00 00 75 6a 48 83 3d 2a 00
RSP: 0000:ffff8801ba9fe150 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff12a4537 RBX: 0000000000000000 RCX: 1ffff1003b1c01ee
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d8e00efc
RBP: ffff8801ba9fe178 R08: ffff8801d8e00f70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d8e00680 R12: dffffc0000000000
R13: fffffbfff12a4536 R14: ffffffff895229b8 R15: ffffffff895229b0
retint_kernel+0x1b/0x2d
RIP: 0010:arch_local_irq_restore+0x4a/0x52
arch/x86/include/asm/paravirt.h:788
Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 e9 3a 0a fa 48 83 3d e9 31 9a 01 00
75 07 e8 6a d7 c6 f9 0f 0b e8 63 d7 c6 f9 48 89 df 57 9d <0f> 1f 44 00 00
5b 5d c3 4c 89 45 d0 e8 9d 3a 0a fa 4c 8b 45 d0 e9
RSP: 0000:ffff8801ba9fe238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
RAX: ffff8801d8e00680 RBX: 0000000000000293 RCX: 1ffff1003b1c01ee
RDX: 0000000000000000 RSI: ffffffff87b7f7cd RDI: 0000000000000293
RBP: ffff8801ba9fe240 R08: ffff8801d8e00f70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d8e00680 R12: 0000000000000293
R13: 0000000000000200 R14: 0000000000000001 R15: ffffffff895229a0
dump_stack+0x26a/0x2b4 lib/dump_stack.c:118
dump_header+0x27b/0xf72 mm/oom_kill.c:441
oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:952
out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112
__alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
__alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
alloc_pages_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: 0033:0x45ddf3
Code: Bad RIP value.
RSP: 002b:000000c42001fea0 EFLAGS: 00010202
RAX: ffffffffffffff92 RBX: 0000000038144a2a RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014947a0
RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
CPU: 0 PID: 8908 Comm: syz-executor3 Not tainted 4.19.0-rc2+ #51
warn_alloc_show_mem: 1 callbacks suppressed
Mem-Info:
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
active_anon:44712 inactive_anon:372 isolated_anon:0
active_file:15 inactive_file:12 isolated_file:0
unevictable:0 dirty:0 writeback:0 unstable:0
slab_reclaimable:8838 slab_unreclaimable:1478678
mapped:8387 shmem:380 pagetables:397 bounce:0
free:13792 free_pcp:444 free_cma:0
<IRQ>
Node 0 active_anon:178848kB inactive_anon:1488kB active_file:60kB
inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB
mapped:33548kB dirty:0kB writeback:0kB shmem:1520kB shmem_thp: 0kB
shmem_pmdmapped: 0kB anon_thp: 165888kB 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 2817 6321 6321
Node 0 DMA32 free:25276kB min:30048kB low:37560kB high:45072kB
active_anon:2048kB inactive_anon:0kB active_file:0kB inactive_file:0kB
unevictable:0kB writepending:0kB present:3129332kB managed:2889304kB
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:13984kB min:37364kB low:46704kB high:56044kB
active_anon:176800kB inactive_anon:1488kB active_file:60kB
inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB
managed:3587728kB mlocked:0kB kernel_stack:4992kB pagetables:1588kB
bounce:0kB free_pcp:1528kB local_pcp:1272kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U)
1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
Node 0 DMA32: 3*4kB (UM) 0*8kB 3*16kB (M) 2*32kB (UM) 3*64kB (UM) 3*128kB
(M) 2*256kB (M) 3*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) =
25276kB
Node 0 Normal: 1020*4kB (UMEH) 383*8kB (MEH) 159*16kB (UMEH) 83*32kB (UMEH)
19*64kB (UM) 4*128kB (M) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB =
14072kB
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
407 total pagecache pages
0 pages in swap cache
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
Swap cache stats: add 0, delete 0, find 0/0
Free swap = 0kB
warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342744 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
__alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
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: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: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 06 a4 3e ff e9 c5 fe ff ff e8 1d 01 c3 ff 48
83 3d bd 4f 90 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 9a 42
RSP: 0000:ffff88019f2f7748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88019e4f6900 RDI: 0000000000000282
RBP: ffff88019f2f77b0 R08: ffff88019e4f6080 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_bebbfe2050753572+0xc7c/0x1000
CPU: 1 PID: 5362 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #51
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-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|
__GFP_COMP), nodemask=(null)
syz-executor3 cpuset=
syz3
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:arch_local_irq_enable arch/x86/include/asm/paravirt.h:798 [inline]
RIP: 0010:preempt_schedule_irq+0x7d/0x110 kernel/sched/core.c:3699
Code: 00 e8 37 60 97 f9 e8 b2 b1 c6 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00
75 7b 48 83 3d 54 00 94 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00
e8 f9 d1 ff ff 41 80 7d 00 00 75 6a 48 83 3d 2a 00
RSP: 0000:ffff8801ba9fe150 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff12a4537 RBX: 0000000000000000 RCX: 1ffff1003b1c01ee
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d8e00efc
RBP: ffff8801ba9fe178 R08: ffff8801d8e00f70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d8e00680 R12: dffffc0000000000
R13: fffffbfff12a4536 R14: ffffffff895229b8 R15: ffffffff895229b0
retint_kernel+0x1b/0x2d
RIP: 0010:arch_local_irq_restore+0x4a/0x52
arch/x86/include/asm/paravirt.h:788
Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 e9 3a 0a fa 48 83 3d e9 31 9a 01 00
75 07 e8 6a d7 c6 f9 0f 0b e8 63 d7 c6 f9 48 89 df 57 9d <0f> 1f 44 00 00
5b 5d c3 4c 89 45 d0 e8 9d 3a 0a fa 4c 8b 45 d0 e9
RSP: 0000:ffff8801ba9fe238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
RAX: ffff8801d8e00680 RBX: 0000000000000293 RCX: 1ffff1003b1c01ee
RDX: 0000000000000000 RSI: ffffffff87b7f7cd RDI: 0000000000000293
RBP: ffff8801ba9fe240 R08: ffff8801d8e00f70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d8e00680 R12: 0000000000000293
R13: 0000000000000200 R14: 0000000000000001 R15: ffffffff895229a0
dump_stack+0x26a/0x2b4 lib/dump_stack.c:118
dump_header+0x27b/0xf72 mm/oom_kill.c:441
oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:952
out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112
__alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
__alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
alloc_pages_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: 0033:0x45ddf3
Code: Bad RIP value.
RSP: 002b:000000c42001fea0 EFLAGS: 00010202
RAX: ffffffffffffff92 RBX: 0000000038144a2a RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014947a0
RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 0 PID: 8908 Comm: syz-executor3 Not tainted 4.19.0-rc2+ #51
Mem-Info:
active_anon:44712 inactive_anon:372 isolated_anon:0
active_file:15 inactive_file:12 isolated_file:0
unevictable:0 dirty:0 writeback:0 unstable:0
slab_reclaimable:8838 slab_unreclaimable:1478678
mapped:8387 shmem:380 pagetables:397 bounce:0
free:13792 free_pcp:444 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
Node 0 active_anon:178848kB inactive_anon:1488kB active_file:60kB
inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB
mapped:33548kB dirty:0kB writeback:0kB shmem:1520kB shmem_thp: 0kB
shmem_pmdmapped: 0kB anon_thp: 165888kB writeback_tmp:0kB unstable:0kB
all_unreclaimable? yes
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
2817
warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426
6321 6321
Node 0
DMA32 free:25276kB min:30048kB low:37560kB high:45072kB active_anon:2048kB
inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB
writepending:0kB present:3129332kB managed:2889304kB 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:13984kB min:37364kB low:46704kB high:56044kB
active_anon:176800kB inactive_anon:1488kB active_file:60kB
inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB
managed:3587728kB mlocked:0kB kernel_stack:4992kB pagetables:1588kB
bounce:0kB free_pcp:1528kB local_pcp:1272kB free_cma:0kB
lowmem_reserve[]: 0
0 0
0
Node 0
DMA: 1*4kB
(U) 0*8kB
0*16kB 1*32kB
(U) 2*64kB
(U) 1*128kB
(U) 1*256kB
(U) 0*512kB
1*1024kB (U)
1*2048kB (M)
3*4096kB (M)
= 15908kB
Node 0
DMA32: 3*4kB
(UM) 0*8kB
3*16kB (M)
2*32kB (UM)
3*64kB (UM)
3*128kB (M)
2*256kB (M)
3*512kB (M)
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
4*1024kB (UM)
1*2048kB (M) 4*4096kB
(M) = 25276kB
Node 0 Normal:
1020*4kB
(UMEH) 383*8kB
__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
(MEH)
159*16kB (UMEH)
fallback_alloc+0x203/0x2e0 mm/slab.c:3219
83*32kB (UMEH)
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
19*64kB (UM)
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
4*128kB (M)
0*256kB 0*512kB
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
0*1024kB 0*2048kB
0*4096kB = 14072kB
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
407 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
342744 pages reserved
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|
__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
/
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 06 a4 3e ff e9 c5 fe ff ff e8 1d 01 c3 ff 48
83 3d bd 4f 90 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 9a 42
RSP: 0000:ffff88019f2f7748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88019e4f6900 RDI: 0000000000000282
RBP: ffff88019f2f77b0 R08: ffff88019e4f6080 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
skb_clone+0x1bb/0x500 net/core/skbuff.c:1283
---
This bug is generated by a bot. It may contain errors.
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