rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10500 ticks this GP) idle=7584/1/0x4000000000000000 softirq=23231/23231 fqs=5239
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1350759          0            0
rcu: 	cputime:    18661      33818           73   ==> 52500(ms)
rcu: 	(t=10502 jiffies g=28793 q=717 ncpus=2)
CPU: 1 PID: 8682 Comm: syz.0.797 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:validate_xmit_skb+0x10/0xf60 net/core/dev.c:3704
Code: f9 31 c0 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 <53> 48 83 e4 e0 48 81 ec c0 00 00 00 48 89 54 24 58 48 89 74 24 40
RSP: 0018:ffffc900001f0530 EFLAGS: 00000293
RAX: ffffffff887909d8 RBX: ffff88807ec66100 RCX: 0000000000000100
RDX: ffffc900001f0750 RSI: ffff88806cc4a000 RDI: ffff888025fa7a00
RBP: ffffc900001f0550 R08: ffffffff8e8addaf R09: 1ffffffff1d15bb5
R10: dffffc0000000000 R11: fffffbfff1d15bb6 R12: 1ffff1100fd8cc20
R13: 1ffff9200003e0cc R14: 0000000000000001 R15: ffff88806cc4a000
FS:  00007f01e0ef96c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f01e0ed8d58 CR3: 00000000658fe000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __dev_queue_xmit+0x14b8/0x36b0 net/core/dev.c:4430
 neigh_output include/net/neighbour.h:543 [inline]
 ip6_finish_output2+0xe3d/0x1630 net/ipv6/ip6_output.c:141
 dst_output include/net/dst.h:467 [inline]
 NF_HOOK include/linux/netfilter.h:304 [inline]
 ndisc_send_skb+0xc26/0x14f0 net/ipv6/ndisc.c:513
 addrconf_rs_timer+0x2d5/0x630 net/ipv6/addrconf.c:4024
 call_timer_fn+0x189/0x540 kernel/time/timer.c:1701
 expire_timers kernel/time/timer.c:1752 [inline]
 __run_timers+0x542/0x800 kernel/time/timer.c:2023
 run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2036
 handle_softirqs+0x280/0x820 kernel/softirq.c:578
 __do_softirq kernel/softirq.c:612 [inline]
 invoke_softirq kernel/softirq.c:452 [inline]
 __irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:finish_task_switch+0x26a/0x8f0 kernel/sched/core.c:5255
Code: 0f 84 33 01 00 00 48 85 db 0f 85 52 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 f0 a3 30 09 e8 8b 22 30 00 fb 4c 8b 65 c0 <49> 8d bc 24 f8 15 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0
RSP: 0018:ffffc90005367758 EFLAGS: 00000282
RAX: 1e733abf92daa200 RBX: 0000000000000000 RCX: 1e733abf92daa200
RDX: dffffc0000000000 RSI: ffffffff8acac900 RDI: ffffffff8b1c81e0
RBP: ffffc900053677b0 R08: ffffffff911bf5ff R09: 1ffffffff2237ebf
R10: dffffc0000000000 R11: fffffbfff2237ec0 R12: ffff888031773c00
R13: dffffc0000000000 R14: ffff88807e7f1e00 R15: ffff8880b8f3cac8
 context_switch kernel/sched/core.c:5384 [inline]
 __schedule+0x155b/0x45a0 kernel/sched/core.c:6700
 preempt_schedule_common+0x82/0xc0 kernel/sched/core.c:6867
 preempt_schedule+0xc0/0xd0 kernel/sched/core.c:6891
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45
 smp_call_function_single+0x48d/0x5a0 kernel/smp.c:652
 task_function_call kernel/events/core.c:120 [inline]
 perf_install_in_context+0x5be/0x920 kernel/events/core.c:2948
 __do_sys_perf_event_open kernel/events/core.c:12915 [inline]
 __se_sys_perf_event_open+0x1836/0x1c50 kernel/events/core.c:12567
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f01dff9bf79
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f01e0ef9028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f01e0215fa0 RCX: 00007f01dff9bf79
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000140
RBP: 00007f01e00327e0 R08: 0000000000000002 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f01e0216038 R14: 00007f01e0215fa0 R15: 00007ffeaeedc778
 </TASK>