rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=ae94/1/0x4000000000000000 softirq=20706/20710 fqs=4406
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1389626          0            0
rcu: 	cputime:    17179      35289           68   ==> 52470(ms)
rcu: 	(t=10500 jiffies g=22053 q=2944 ncpus=2)
CPU: 0 PID: 7601 Comm: syz.2.429 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:memset_orig+0x75/0xac arch/x86/lib/memset_64.S:90
Code: 89 47 30 48 89 47 38 48 8d 7f 40 75 d8 0f 1f 84 00 00 00 00 00 89 d1 83 e1 38 74 14 c1 e9 03 66 0f 1f 44 00 00 ff c9 48 89 07 <48> 8d 7f 08 75 f5 83 e2 07 74 0a ff ca 88 07 48 8d 7f 01 75 f6 4c
RSP: 0018:ffffc90000007700 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff88805f535b00 RCX: 0000000000000000
RDX: 000000000000000c RSI: 0000000000000000 RDI: ffffed100bea6b60
RBP: 0000000000000820 R08: ffffc900000077c8 R09: 0000000000000000
R10: ffffed100bea6b60 R11: 0200000000000000 R12: 0000000000000001
R13: 0000000000000060 R14: 0000000000000060 R15: dffffc0000000000
FS:  00007fd8339f66c0(0000) GS:ffff8880b8c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c296919 CR3: 0000000030854000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 kasan_poison mm/kasan/shadow.c:150 [inline]
 kasan_unpoison+0x67/0x90 mm/kasan/shadow.c:190
 __kasan_slab_alloc+0x58/0x80 mm/kasan/common.c:325
 kasan_slab_alloc include/linux/kasan.h:188 [inline]
 slab_post_alloc_hook+0x6a/0x4d0 mm/slab.h:770
 slab_alloc_node mm/slub.c:3518 [inline]
 __kmem_cache_alloc_node+0x197/0x260 mm/slub.c:3557
 kmalloc_trace+0x2a/0xe0 mm/slab_common.c:1098
 kmalloc include/linux/slab.h:600 [inline]
 dst_cow_metrics_generic+0x56/0x1b0 net/core/dst.c:196
 dst_metrics_write_ptr include/net/dst.h:136 [inline]
 dst_metric_set include/net/dst.h:197 [inline]
 icmp6_dst_alloc+0x237/0x400 net/ipv6/route.c:3337
 ndisc_send_skb+0x422/0x1480 net/ipv6/ndisc.c:493
 addrconf_rs_timer+0x36b/0x640 net/ipv6/addrconf.c:4043
 call_timer_fn+0x189/0x540 kernel/time/timer.c:1701
 expire_timers kernel/time/timer.c:1752 [inline]
 __run_timers+0x570/0x810 kernel/time/timer.c:2023
 run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2036
 handle_softirqs+0x27d/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:generic_exec_single+0x477/0x4e0 kernel/smp.c:418
Code: 75 11 e8 2c 15 0b 00 48 85 db 75 16 e8 22 15 0b 00 eb 15 e8 1b 15 0b 00 e8 f6 18 1b 09 48 85 db 74 ea e8 0c 15 0b 00 fb 31 c0 <48> c7 44 24 20 0e 36 e0 45 4b c7 04 2c 00 00 00 00 43 c7 44 2c 08
RSP: 0018:ffffc900033d7a00 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000200 RCX: 0000000000080000
RDX: ffffc9000d47b000 RSI: 000000000000333b RDI: 000000000000333c
RBP: ffffc900033d7ad0 R08: ffffffff92223607 R09: 1ffffffff24446c0
R10: dffffc0000000000 R11: fffffbfff24446c1 R12: 1ffff9200067af44
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff9200067af65
 smp_call_function_single+0x36d/0x5a0 kernel/smp.c:647
 task_function_call kernel/events/core.c:120 [inline]
 perf_install_in_context+0x5bb/0x920 kernel/events/core.c:2959
 __do_sys_perf_event_open kernel/events/core.c:12952 [inline]
 __se_sys_perf_event_open+0x180d/0x1d40 kernel/events/core.c:12594
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fd83579f559
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:00007fd8339f6028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fd835a25fa0 RCX: 00007fd83579f559
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00002000000008c0
RBP: 00007fd835836b50 R08: 0000000000000002 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd835a26038 R14: 00007fd835a25fa0 R15: 00007ffffa6d03d8
 </TASK>