rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (1 GPs behind) idle=749/1/0x4000000000000000 softirq=12955/12956 fqs=1 
	(t=10502 jiffies g=13569 q=715)
rcu: rcu_preempt kthread starved for 10501 jiffies! g13569 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R  running task     stack:27064 pid:   15 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
 schedule+0x11b/0x1f0 kernel/sched/core.c:6459
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1914
 rcu_gp_fqs_loop+0x2bf/0x1080 kernel/rcu/tree.c:1972
 rcu_gp_kthread+0xa4/0x360 kernel/rcu/tree.c:2145
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </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: 4606 Comm: syz.0.255 Not tainted 5.15.164-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline]
RIP: 0010:static_key_false include/linux/jump_label.h:212 [inline]
RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:156 [inline]
RIP: 0010:wrmsr arch/x86/include/asm/msr.h:263 [inline]
RIP: 0010:native_apic_msr_write+0x35/0x50 arch/x86/include/asm/apic.h:208
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 89 f6 31 d2 e9 1f f2 f3 02 66 2e 0f 1f 84 00 00 00 00 00
RSP: 0018:ffffc90000dd01d8 EFLAGS: 00000046
RAX: 00000000000001b8 RBX: ffffffff8c3b29b8 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 00000000000001b8 RDI: 0000000000000838
RBP: 00000000000001b8 R08: ffffffff817272cd R09: fffffbfff1bd2986
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880b9b27240
R13: dffffc0000000000 R14: 00000000000001b8 R15: dffffc0000000000
FS:  00007f82116686c0(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8211689990 CR3: 0000000055a33000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 apic_write arch/x86/include/asm/apic.h:395 [inline]
 lapic_next_event+0x5b/0x70 arch/x86/kernel/apic/apic.c:468
 clockevents_program_event+0x1c5/0x310 kernel/time/clockevents.c:334
 hrtimer_interrupt+0x546/0x980 kernel/time/hrtimer.c:1825
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
 __sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
 sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__kernel_text_address+0x0/0x100 kernel/extable.c:104
Code: 66 2e 0f 1f 84 00 00 00 00 00 48 c7 c0 00 00 60 8c 48 39 c7 0f 93 c0 48 c7 c1 c0 4a eb 8d 48 39 cf 0f 92 c1 20 c1 0f b6 c1 c3 <55> 41 56 53 48 89 fb 48 c7 c0 00 00 00 81 bd 01 00 00 00 48 39 c7
RSP: 0018:ffffc90000dd0438 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc90000dd04a8 RCX: 0000000000000302
RDX: dffffc0000000000 RSI: ffffc90000dd0860 RDI: ffffffff81c952d3
RBP: ffffc90000dd04f0 R08: ffffc90000dd0860 R09: ffffc90000dd04b0
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888019ad5940
R13: ffffffff816dfa30 R14: dffffc0000000000 R15: 1ffff920001ba095
 unwind_get_return_address+0x49/0x80 arch/x86/kernel/unwind_orc.c:323
 arch_stack_walk+0xf3/0x140 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 __kasan_slab_alloc+0x8e/0xc0 mm/kasan/common.c:467
 kasan_slab_alloc include/linux/kasan.h:254 [inline]
 slab_post_alloc_hook+0x53/0x380 mm/slab.h:519
 slab_alloc_node mm/slub.c:3220 [inline]
 slab_alloc mm/slub.c:3228 [inline]
 kmem_cache_alloc+0xf3/0x280 mm/slub.c:3233
 skb_clone+0x1bb/0x350 net/core/skbuff.c:1523
 hsr_forward_skb+0xed7/0x1b50 net/hsr/hsr_forward.c:577
 send_hsr_supervision_frame+0x540/0xad0 net/hsr/hsr_device.c:326
 hsr_announce+0x176/0x300 net/hsr/hsr_device.c:382
 call_timer_fn+0x16d/0x560 kernel/time/timer.c:1451
 expire_timers kernel/time/timer.c:1496 [inline]
 __run_timers+0x67c/0x890 kernel/time/timer.c:1767
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780
 handle_softirqs+0x3a7/0x930 kernel/softirq.c:558
 __do_softirq kernel/softirq.c:592 [inline]
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:641
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:653
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__schedule+0x12e9/0x45b0 kernel/sched/core.c:6384
Code: e8 cc 20 c5 f6 48 89 c7 e8 a4 ff 1c f7 48 c7 84 24 20 01 00 00 0e 36 e0 45 48 8b 84 24 18 01 00 00 49 c7 44 05 00 00 00 00 00 <66> 41 c7 44 05 0a 00 00 65 48 8b 04 25 28 00 00 00 48 3b 84 24 80
RSP: 0018:ffffc90002e276a0 EFLAGS: 00000282
RAX: 1ffff920005c4ef8 RBX: ffff88813fe23b80 RCX: ffffffff816319d8
RDX: dffffc0000000000 RSI: ffffffff8a8b2a00 RDI: ffff888019ad6f50
RBP: ffffc90002e27870 R08: dffffc0000000000 R09: fffffbfff1f8e03a
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100335abcb
R13: dffffc0000000000 R14: ffff888019ad5e58 R15: ffff88801a7baa00
 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6780
 irqentry_exit+0x53/0x80 kernel/entry/common.c:432
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:preempt_schedule_thunk+0x0/0x18 arch/x86/entry/thunk_64.S:34
Code: 03 38 c1 7c c1 4c 89 f7 e8 ad a8 c9 00 eb b7 66 2e 0f 1f 84 00 00 00 00 00 90 e8 cb d4 7f 00 48 c7 c0 e0 62 80 8a c3 cc cc cc <55> 48 89 e5 57 56 52 51 50 41 50 41 51 41 52 41 53 e8 3a dc 3a 09
RSP: 0018:ffffc90002e27a00 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff88805e5a67b0 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed100bcb4cf7
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100be9aa1c
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff8880604630a8
 __raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline]
 _raw_spin_unlock+0x36/0x40 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:403 [inline]
 fasync_insert_entry+0x1e8/0x270 fs/fcntl.c:954
 fasync_add_entry fs/fcntl.c:977 [inline]
 fasync_helper+0x4d/0xa0 fs/fcntl.c:995
 perf_fasync+0x7f/0xa0 kernel/events/core.c:6584
 ioctl_fioasync fs/ioctl.c:383 [inline]
 do_vfs_ioctl+0x1334/0x2b70 fs/ioctl.c:795
 __do_sys_ioctl fs/ioctl.c:872 [inline]
 __se_sys_ioctl+0x81/0x160 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f821320c9b9
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:00007f8211668038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f82133a9058 RCX: 00007f821320c9b9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 000000000000000b
RBP: 00007f821327a8d8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f82133a9058 R15: 00007ffe99ff8378
 </TASK>
NMI backtrace for cpu 0
CPU: 0 PID: 4518 Comm: syz.3.252 Not tainted 5.15.164-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline]
 rcu_dump_cpu_stacks+0x223/0x390 kernel/rcu/tree_stall.h:349
 print_cpu_stall+0x320/0x600 kernel/rcu/tree_stall.h:633
 check_cpu_stall kernel/rcu/tree_stall.h:727 [inline]
 rcu_pending kernel/rcu/tree.c:3932 [inline]
 rcu_sched_clock_irq+0x8d9/0x1150 kernel/rcu/tree.c:2619
 update_process_times+0x196/0x200 kernel/time/timer.c:1818
 tick_sched_handle kernel/time/tick-sched.c:254 [inline]
 tick_sched_timer+0x386/0x550 kernel/time/tick-sched.c:1473
 __run_hrtimer kernel/time/hrtimer.c:1686 [inline]
 __hrtimer_run_queues+0x55b/0xcf0 kernel/time/hrtimer.c:1750
 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
 __sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
 sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:skb_ext_put include/linux/skbuff.h:4401 [inline]
RIP: 0010:skb_release_head_state+0x18f/0x230 net/core/skbuff.c:734
Code: eb 1d e8 b4 9f 3c f9 eb 16 31 ff 89 ee e8 09 a3 3c f9 85 ed 0f 8e 80 00 00 00 e8 9c 9f 3c f9 49 8d 5e 7f 48 89 d8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 75 7e 0f b6 1b 31 ff 89 de e8 dc a1 3c f9 85
RSP: 0018:ffffc90000007668 EFLAGS: 00000a07
RAX: 1ffff1100d071cd7 RBX: ffff88806838e6bf RCX: ffff888019bc3b80
RDX: 0000000000000300 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8843c16b R09: ffffed100b0c3b30
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88806838e640 R15: ffff88806838e6a0
 skb_release_all net/core/skbuff.c:740 [inline]
 __kfree_skb net/core/skbuff.c:756 [inline]
 kfree_skb_reason+0x82/0x170 net/core/skbuff.c:776
 kfree_skb include/linux/skbuff.h:1123 [inline]
 neigh_connected_output+0x38d/0x3b0 net/core/neighbour.c:1536
 neigh_output include/net/neighbour.h:509 [inline]
 ip6_finish_output2+0xee8/0x14f0 net/ipv6/ip6_output.c:126
 dst_output include/net/dst.h:443 [inline]
 NF_HOOK include/linux/netfilter.h:302 [inline]
 ndisc_send_skb+0xae0/0x13c0 net/ipv6/ndisc.c:509
 addrconf_rs_timer+0x357/0x610 net/ipv6/addrconf.c:3958
 call_timer_fn+0x16d/0x560 kernel/time/timer.c:1451
 expire_timers kernel/time/timer.c:1496 [inline]
 __run_timers+0x67c/0x890 kernel/time/timer.c:1767
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780
 handle_softirqs+0x3a7/0x930 kernel/softirq.c:558
 __do_softirq kernel/softirq.c:592 [inline]
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:641
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:653
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:unwind_next_frame+0x9d/0x1fa0
Code: 00 fc ff df 4d 8b 67 38 4c 89 fb 48 c1 eb 03 0f b6 04 03 84 c0 0f 85 68 17 00 00 41 8b 07 85 c0 0f 84 4e 16 00 00 89 44 24 74 <48> 89 6c 24 40 4c 89 64 24 78 4c 89 74 24 50 48 89 5c 24 38 bf 01
RSP: 0018:ffffc900025973a8 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 1ffff920004b2e8c RCX: 1ffff920004b2e93
RDX: dffffc0000000000 RSI: ffffffff81bf7e14 RDI: ffffc90002597460
RBP: ffffc90002597498 R08: 0000000000000000 R09: ffffc90002597550
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90002597768
R13: ffffffff816dfa30 R14: ffffffff81bf7e14 R15: ffffc90002597460
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 save_stack+0xf6/0x1e0 mm/page_owner.c:119
 __reset_page_owner+0x52/0x180 mm/page_owner.c:140
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1340 [inline]
 free_pcp_prepare mm/page_alloc.c:1391 [inline]
 free_unref_page_prepare+0xc34/0xcf0 mm/page_alloc.c:3317
 free_unref_page+0x95/0x2d0 mm/page_alloc.c:3396
 __vunmap+0x8d4/0xa20 mm/vmalloc.c:2621
 kcov_put kernel/kcov.c:408 [inline]
 kcov_close+0x27/0x50 kernel/kcov.c:510
 __fput+0x3fe/0x8e0 fs/file_table.c:280
 task_work_run+0x129/0x1a0 kernel/task_work.c:164
 exit_task_work include/linux/task_work.h:32 [inline]
 do_exit+0x6a3/0x2480 kernel/exit.c:874
 do_group_exit+0x144/0x310 kernel/exit.c:996
 get_signal+0xc66/0x14e0 kernel/signal.c:2889
 arch_do_signal_or_restart+0xc3/0x1890 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0x97/0x130 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f075c2e09b9
Code: Unable to access opcode bytes at RIP 0x7f075c2e098f.
RSP: 002b:00007f075a75d0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffff5 RBX: 00007f075c47cf88 RCX: 00007f075c2e09b9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f075c47cf88
RBP: 00007f075c47cf80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f075c47cf8c
R13: 0000000000000000 R14: 00007ffd5ff0d5f0 R15: 00007ffd5ff0d6d8
 </TASK>