rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2908 jiffies s: 36757 root: 0x1/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 7778 Comm: syz.1.1261 Not tainted 6.1.112-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:check_wait_context kernel/locking/lockdep.c:4724 [inline] RIP: 0010:__lock_acquire+0x571/0x1f80 kernel/locking/lockdep.c:4999 Code: a3 77 00 48 0f a3 1d fe 42 b3 0f 73 1f 48 8d 04 5b 48 c1 e0 06 48 8d 98 20 51 bb 90 48 ba 00 00 00 00 00 fc ff df 48 8b 34 24 34 48 c7 c0 60 41 33 97 48 c1 e8 03 48 ba 00 00 00 00 00 fc ff RSP: 0018:ffffc90000006b40 EFLAGS: 00000006 RAX: 0000000000003600 RBX: ffffffff90bb8720 RCX: ffffffff816a8f1a RDX: dffffc0000000000 RSI: ffff88802c9ce420 RDI: ffffffff911dd228 RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff223ba46 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802c9ce418 R13: ffff88802c9cd940 R14: ffff88802c9ce558 R15: 1ffff11005939cab FS: 00007f281169c6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000563814c9e0c8 CR3: 0000000062bac000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662 seqcount_lockdep_reader_access+0xf8/0x220 include/linux/seqlock.h:102 ktime_get_update_offsets_now+0x38/0x420 kernel/time/timekeeping.c:2317 hrtimer_update_base kernel/time/hrtimer.c:632 [inline] hrtimer_interrupt+0x12f/0x980 kernel/time/hrtimer.c:1797 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline] __sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112 sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:__find_rr_leaf+0x151/0x8e0 net/ipv6/route.c:804 Code: 40 4c 89 74 24 48 4d 85 f6 74 3d 49 8d 9c 24 80 00 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 9b 04 00 00 44 8b 2b <44> 89 ef 8b 5c 24 74 89 de e8 91 d5 23 f8 41 39 dd 0f 85 e4 05 00 RSP: 0018:ffffc900000070a0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff888143732080 RCX: ffff88802c9cd940 RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90000007218 R08: ffffffff8966dd4c R09: ffffc90000007350 R10: ffffc90000007340 R11: dffffc0000000001 R12: ffff888143732000 R13: 0000000000000100 R14: ffffc90000007320 R15: dffffc0000000000 find_rr_leaf net/ipv6/route.c:856 [inline] rt6_select net/ipv6/route.c:900 [inline] fib6_table_lookup+0x40f/0xbb0 net/ipv6/route.c:2189 ip6_pol_route+0x207/0x14e0 net/ipv6/route.c:2225 pol_lookup_func include/net/ip6_fib.h:579 [inline] fib6_rule_lookup+0x265/0x620 net/ipv6/fib6_rules.c:116 ip6_route_input_lookup net/ipv6/route.c:2294 [inline] ip6_route_input+0x830/0xd90 net/ipv6/route.c:2590 ip6_rcv_finish+0x140/0x230 net/ipv6/ip6_input.c:77 NF_HOOK+0x39d/0x450 include/linux/netfilter.h:302 __netif_receive_skb_one_core net/core/dev.c:5528 [inline] __netif_receive_skb+0x1c6/0x530 net/core/dev.c:5642 process_backlog+0x381/0x760 net/core/dev.c:5970 __napi_poll+0xc7/0x470 net/core/dev.c:6537 napi_poll net/core/dev.c:6604 [inline] net_rx_action+0x70f/0xeb0 net/core/dev.c:6718 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571 __do_softirq kernel/softirq.c:605 [inline] invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:__sanitizer_cov_trace_pc+0x58/0x60 kernel/kcov.c:234 Code: f8 15 00 00 83 fa 02 75 21 48 8b 91 00 16 00 00 48 8b 32 48 8d 7e 01 8b 89 fc 15 00 00 48 39 cf 73 08 48 89 3a 48 89 44 f2 08 0f 1f 80 00 00 00 00 4c 8b 04 24 65 48 8b 15 94 bf 77 7e 65 8b RSP: 0018:ffffc900033af7b8 EFLAGS: 00000283 RAX: ffffffff817f6ba1 RBX: 0000000000000001 RCX: 0000000000040000 RDX: ffffc90011d12000 RSI: 0000000000023c75 RDI: 0000000000023c76 RBP: ffffc900033afba0 R08: ffffffff817f6b39 R09: ffffed10171c7753 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000002 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880b8e3ba80 arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline] smp_call_function_many_cond+0x1c41/0x3460 kernel/smp.c:982 on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1166 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:1334 [inline] text_poke_bp_batch+0x5f9/0x940 arch/x86/kernel/alternative.c:1596 text_poke_flush arch/x86/kernel/alternative.c:1725 [inline] text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1732 arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146 static_key_slow_inc_cpuslocked+0xaf/0x140 kernel/jump_label.c:165 static_key_slow_inc+0x16/0x30 kernel/jump_label.c:186 bpf_enable_runtime_stats kernel/bpf/syscall.c:4855 [inline] bpf_enable_stats+0xfe/0x140 kernel/bpf/syscall.c:4874 __sys_bpf+0x60a/0x6c0 kernel/bpf/syscall.c:5103 __do_sys_bpf kernel/bpf/syscall.c:5124 [inline] __se_sys_bpf kernel/bpf/syscall.c:5122 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5122 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f281097dff9 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:00007f281169c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f2810b35f80 RCX: 00007f281097dff9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000020 RBP: 00007f28109f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f2810b35f80 R15: 00007ffd45b546e8