rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (10500 ticks this GP) idle=0ecc/1/0x4000000000000000 softirq=98891/98891 fqs=0
rcu: 	(t=10502 jiffies g=147621 q=6 ncpus=2)
rcu: rcu_preempt kthread timer wakeup didn't happen for 10502 jiffies! g147621 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=124098
rcu: rcu_preempt kthread starved for 10505 jiffies! g147621 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
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:I stack:24856 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5343 [inline]
 __schedule+0x187b/0x4900 kernel/sched/core.c:6669
 schedule+0xc3/0x180 kernel/sched/core.c:6745
 schedule_timeout+0x1bd/0x310 kernel/time/timer.c:2167
 rcu_gp_fqs_loop+0x2c6/0x1010 kernel/rcu/tree.c:1609
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1808
 kthread+0x2b8/0x350 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 19015 Comm: kworker/1:0 Not tainted 6.4.0-rc4-syzkaller-00276-ge5282a7d8f6b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Workqueue: mld mld_ifc_work
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x17/0x60 kernel/kcov.c:207
Code: 48 8b 3d 74 4f ca 0c 48 89 de 5b e9 33 ff 56 00 0f 1f 00 f3 0f 1e fa 48 8b 04 24 65 48 8b 0d 80 38 78 7e 65 8b 15 81 38 78 7e <f7> c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 0c 16 00 00
RSP: 0018:ffffc90003aaf3a0 EFLAGS: 00000202
RAX: ffffffff88d10692 RBX: 1ffff1100f66f45d RCX: ffff888020c63b80
RDX: 0000000000000201 RSI: ffff88807b37a2e0 RDI: ffff8880854c08a0
RBP: ffff88807b37a2e0 R08: ffffffff88d103b8 R09: ffffffff88ba4a5e
R10: 0000000000000002 R11: ffff888020c63b80 R12: ffff8880854c08a0
R13: ffff88807b37a000 R14: ffff88807b37a2e8 R15: ffff88807b37a2f0
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f58ef786ff8 CR3: 000000007bbb2000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 __list_add include/linux/list.h:72 [inline]
 list_add_tail include/linux/list.h:102 [inline]
 list_move_tail include/linux/list.h:230 [inline]
 fq_pie_qdisc_dequeue+0x402/0xa40 net/sched/sch_fq_pie.c:248
 dequeue_skb net/sched/sch_generic.c:292 [inline]
 qdisc_restart net/sched/sch_generic.c:397 [inline]
 __qdisc_run+0x26e/0x20a0 net/sched/sch_generic.c:415
 __dev_xmit_skb net/core/dev.c:3868 [inline]
 __dev_queue_xmit+0x1397/0x38b0 net/core/dev.c:4210
 neigh_output include/net/neighbour.h:544 [inline]
 ip6_finish_output2+0xf80/0x1560 net/ipv6/ip6_output.c:134
 __ip6_finish_output net/ipv6/ip6_output.c:195 [inline]
 ip6_finish_output+0x6b0/0xa80 net/ipv6/ip6_output.c:206
 dst_output include/net/dst.h:458 [inline]
 NF_HOOK+0x16a/0x500 include/linux/netfilter.h:303
 mld_sendpack+0x848/0xdb0 net/ipv6/mcast.c:1820
 mld_send_cr net/ipv6/mcast.c:2121 [inline]
 mld_ifc_work+0x7d6/0xc90 net/ipv6/mcast.c:2653
 process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2405
 worker_thread+0xa63/0x1210 kernel/workqueue.c:2552
 kthread+0x2b8/0x350 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
CPU: 0 PID: 28761 Comm: syz-executor.0 Not tainted 6.4.0-rc4-syzkaller-00276-ge5282a7d8f6b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
RIP: 0010:arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline]
RIP: 0010:kvm_wait+0x1c0/0x200 arch/x86/kernel/kvm.c:1060
Code: 03 42 0f b6 04 28 84 c0 75 46 45 0f b6 34 24 e8 56 fe 55 00 44 3a 74 24 1c 75 14 66 90 0f 00 2d f6 df ab 09 f3 0f 1e fa fb f4 <e9> c0 fe ff ff fb e9 ba fe ff ff 44 89 e1 80 e1 07 38 c1 0f 8c 4c
RSP: 0018:ffffc90000007860 EFLAGS: 00000246
RAX: 0be51186a60b2900 RBX: 1ffff92000000f10 RCX: ffffffff816b847a
RDX: dffffc0000000000 RSI: ffffffff8aea8e20 RDI: ffffffff8b384400
RBP: ffffc90000007930 R08: dffffc0000000000 R09: fffffbfff2065265
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807b37a0f0
R13: dffffc0000000000 R14: 0000000000000003 R15: ffffc900000078a0
FS:  00007f58ef7c9700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200f2030 CR3: 000000007bbb2000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 pv_wait arch/x86/include/asm/paravirt.h:598 [inline]
 pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
 __pv_queued_spin_lock_slowpath+0x6ff/0xc50 kernel/locking/qspinlock.c:511
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:586 [inline]
 queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
 do_raw_spin_lock+0x297/0x3a0 kernel/locking/spinlock_debug.c:115
 spin_lock include/linux/spinlock.h:350 [inline]
 fq_pie_timer+0x8b/0x270 net/sched/sch_fq_pie.c:377
 call_timer_fn+0x178/0x580 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x64f/0x860 kernel/time/timer.c:2022
 run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2035
 __do_softirq+0x2ab/0x908 kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x159/0x240 kernel/softirq.c:650
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__sanitizer_cov_trace_pc+0x45/0x60 kernel/kcov.c:212
Code: ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 0c 16 00 00 00 74 2c 8b 91 e8 15 00 00 83 fa 02 75 21 48 8b 91 f0 15 00 00 48 8b 32 <48> 8d 7e 01 8b 89 ec 15 00 00 48 39 cf 73 08 48 89 3a 48 89 44 f2
RSP: 0018:ffffc9000325fa98 EFLAGS: 00000246
RAX: ffffffff8893c96c RBX: 0000000000000002 RCX: ffff8880868b8000
RDX: ffffc90006141000 RSI: 000000000003ffff RDI: ffffc9000325fa20
RBP: ffffc9000325fe50 R08: ffffffff8893c935 R09: fffffbfff1cab98e
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000003c96
R13: 1ffff9200064bf80 R14: 00000000ffffffff R15: dffffc0000000000
 do_recvmmsg+0x84c/0xad0 net/socket.c:2845
 __sys_recvmmsg net/socket.c:2937 [inline]
 __do_sys_recvmmsg net/socket.c:2960 [inline]
 __se_sys_recvmmsg net/socket.c:2953 [inline]
 __x64_sys_recvmmsg+0x199/0x240 net/socket.c:2953
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f58eea8c169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f58ef7c9168 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f58eebac050 RCX: 00007f58eea8c169
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000006
RBP: 00007f58eeae7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd2c0d2dff R14: 00007f58ef7c9300 R15: 0000000000022000
 </TASK>