hrtimer: interrupt took 63062 ns
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-...!: (10500 ticks this GP) idle=e074/1/0x4000000000000000 softirq=44723/44723 fqs=0
rcu: (t=10500 jiffies g=35497 q=154 ncpus=1)
rcu: rcu_preempt kthread starved for 10500 jiffies! g35497 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:28864 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5256 [inline]
__schedule+0x149b/0x4fd0 kernel/sched/core.c:6863
__schedule_loop kernel/sched/core.c:6945 [inline]
schedule+0x165/0x360 kernel/sched/core.c:6960
schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x301/0x1540 kernel/rcu/tree.c:2083
rcu_gp_kthread+0x99/0x390 kernel/rcu/tree.c:2285
kthread+0x711/0x8a0 kernel/kthread.c:463
ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
CPU: 0 UID: 0 PID: 5813 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:ip6t_do_table+0x275/0x1560 net/ipv6/netfilter/ip6_tables.c:285
Code: 01 41 89 c6 48 89 5c 24 30 48 83 c3 38 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 c2 88 06 f8 45 89 f6 49 c1 e6 03 <4c> 03 33 4c 89 f0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 a2
RSP: 0000:ffffc90000007780 EFLAGS: 00010246
RAX: 1ffff11008165e07 RBX: ffff888040b2f038 RCX: 0000000000000301
RDX: 0000000000000100 RSI: ffffffff8bc09540 RDI: ffffffff8bc09500
RBP: ffffc90000007980 R08: ffffc900000078ef R09: 0000000000000000
R10: ffffc900000078d0 R11: fffff52000000f1e R12: 0000000000000004
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000003
FS: 00007f505e2236c0(0000) GS:ffff88808d416000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbee429a068 CR3: 0000000037307000 CR4: 0000000000352ef0
Call Trace:
nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline]
nf_hook_slow+0xc5/0x220 net/netfilter/core.c:623
nf_hook include/linux/netfilter.h:273 [inline]
NF_HOOK include/linux/netfilter.h:316 [inline]
ndisc_send_skb+0x13c5/0x1510 net/ipv6/ndisc.c:512
addrconf_rs_timer+0x369/0x6a0 net/ipv6/addrconf.c:4037
call_timer_fn+0x16e/0x590 kernel/time/timer.c:1748
expire_timers kernel/time/timer.c:1799 [inline]
__run_timers kernel/time/timer.c:2373 [inline]
__run_timer_base+0x61a/0x860 kernel/time/timer.c:2385
run_timer_base kernel/time/timer.c:2394 [inline]
run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2404
handle_softirqs+0x22b/0x7c0 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0x60/0x150 kernel/softirq.c:723
irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1056
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:preempt_schedule_irq+0x48/0xa0 kernel/sched/core.c:7190
Code: 49 be 00 00 00 00 00 fc ff df eb 09 48 f7 03 10 00 00 00 74 54 bf 01 00 00 00 e8 43 eb 33 f6 e8 7e 0e 6c f6 fb bf 01 00 00 00 c3 a9 ff ff 9c 58 fa a9 00 02 00 00 74 05 e8 04 10 6c f6 bf 01
RSP: 0000:ffffc90002a57dd8 EFLAGS: 00000206
RAX: 0000000000003d41 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8d7982a0 RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffffff8f824277 R09: 1ffffffff1f0484e
R10: dffffc0000000000 R11: fffffbfff1f0484f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
irqentry_exit+0x5d8/0x660 kernel/entry/common.c:216
asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:733
RIP: 0010:__exit_to_user_mode_loop kernel/entry/common.c:-1 [inline]
RIP: 0010:exit_to_user_mode_loop kernel/entry/common.c:75 [inline]
RIP: 0010:__exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
RIP: 0010:irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:270 [inline]
RIP: 0010:irqentry_exit_to_user_mode include/linux/irq-entry-common.h:339 [inline]
RIP: 0010:irqentry_exit+0x14a/0x660 kernel/entry/common.c:196
Code: cc cc cc b8 00 00 00 c0 48 8d a8 00 e0 ff 3f 41 bc ff ff ff 9f 4c 8d 7c 24 18 f7 c7 37 03 00 00 74 59 49 89 fd e8 36 39 4f f6 <4c> 89 e8 a8 30 74 08 e8 7a 20 01 00 4c 89 e8 a9 00 01 00 00 74 0b
RSP: 0000:ffffc90002a57ef0 EFLAGS: 00000206
RAX: 0000000000003d3f RBX: ffff88801a384980 RCX: 0000000000000046
RDX: 0000000000000000 RSI: ffffffff8d7982a0 RDI: ffffffff8bc09560
RBP: 00000000ffffe000 R08: ffffffff8f824277 R09: 1ffffffff1f0484e
R10: dffffc0000000000 R11: fffffbfff1f0484f R12: 000000009fffffff
R13: 0000000000000010 R14: ffffc90002a57f48 R15: ffffc90002a57f08
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0033:0x7f505d38eec9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f505e223038 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007f505d5e5fa0 RCX: 00007f505d38eec9
RDX: 00002000000006c0 RSI: 0000000000005452 RDI: 0000000000000003
RBP: 00007f505d411f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f505d5e6038 R14: 00007f505d5e5fa0 R15: 00007ffe37f65018