rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-....: (1 GPs behind) idle=6794/1/0x4000000000000000 softirq=22007/22008 fqs=4529
rcu: hardirqs softirqs csw/system
rcu: number: 1227336 0 0
rcu: cputime: 16628 35861 68 ==> 52490(ms)
rcu: (t=10500 jiffies g=25929 q=3117 ncpus=2)
CPU: 0 PID: 8344 Comm: syz.0.701 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:__asan_memset+0x2f/0x40 mm/kasan/shadow.c:87
Code: 41 56 53 48 89 d3 89 f5 49 89 fe 48 8b 4c 24 18 48 89 d6 ba 01 00 00 00 e8 8e ea ff ff 84 c0 74 11 4c 89 f7 89 ee 48 89 da 5b <41> 5e 5d e9 69 0e a7 08 31 c0 5b 41 5e 5d c3 66 90 f3 0f 1e fa 41
RSP: 0018:ffffc90000007208 EFLAGS: 00000202
RAX: ffffffff893e3001 RBX: 1ffff92000000e4c RCX: ffffffff893e3078
RDX: 0000000000000020 RSI: 0000000000000000 RDI: ffffc90000007290
RBP: 0000000000000000 R08: ffffc900000072af R09: 1ffff92000000e55
R10: dffffc0000000000 R11: fffff52000000e56 R12: 0000000000000080
R13: ffffc90000007920 R14: ffffc90000007290 R15: ffffc90000007290
FS: 00007f740be136c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff3af46f70 CR3: 000000002fd83000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000200000000300
DR3: 0000200000000300 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
ip6_pol_route+0xb8/0x1230 net/ipv6/route.c:2254
pol_lookup_func include/net/ip6_fib.h:641 [inline]
fib6_rule_lookup+0x20c/0x570 net/ipv6/fib6_rules.c:116
ip6_route_output_flags_noref net/ipv6/route.c:2676 [inline]
ip6_route_output_flags+0x364/0x5d0 net/ipv6/route.c:2688
ip6_route_output include/net/ip6_route.h:94 [inline]
ip6_dst_lookup_tail+0x1ae/0x1530 net/ipv6/ip6_output.c:1133
icmpv6_route_lookup+0xfe/0x600 net/ipv6/icmp.c:363
icmp6_send+0x11a2/0x1b40 net/ipv6/icmp.c:604
__icmpv6_send include/linux/icmpv6.h:28 [inline]
icmpv6_send include/linux/icmpv6.h:49 [inline]
ip6_link_failure+0x3b/0x4c0 net/ipv6/route.c:2836
dst_link_failure include/net/dst.h:437 [inline]
ndisc_error_report+0x112/0x160 net/ipv6/ndisc.c:733
neigh_invalidate+0x22c/0x450 net/core/neighbour.c:1064
neigh_timer_handler+0x914/0xff0 net/core/neighbour.c:1151
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
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 00 89 32 09 e8 9b 29 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:ffffc900051ef758 EFLAGS: 00000282
RAX: 3a081b971bede800 RBX: 0000000000000000 RCX: 3a081b971bede800
RDX: dffffc0000000000 RSI: ffffffff8acac9e0 RDI: ffffffff8b1c8e60
RBP: ffffc900051ef7b0 R08: ffffffff911c5607 R09: 1ffffffff2238ac0
R10: dffffc0000000000 R11: fffffbfff2238ac1 R12: ffff88807d4fbc00
R13: dffffc0000000000 R14: ffff88801a270000 R15: ffff8880b8e3cac8
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:2959
__do_sys_perf_event_open kernel/events/core.c:12957 [inline]
__se_sys_perf_event_open+0x1836/0x1c50 kernel/events/core.c:12609
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: 0033:0x7f740af9cdd9
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:00007f740be13028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f740b215fa0 RCX: 00007f740af9cdd9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000480
RBP: 00007f740b032d69 R08: 000000000000000a R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f740b216038 R14: 00007f740b215fa0 R15: 00007ffd6d8afda8