rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 3829 jiffies s: 961 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: 4391 Comm: syz.3.11 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline]
RIP: 0010:static_key_false include/linux/jump_label.h:207 [inline]
RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:147 [inline]
RIP: 0010:wrmsr arch/x86/include/asm/msr.h:254 [inline]
RIP: 0010:native_apic_msr_write+0x35/0x50 arch/x86/include/asm/apic.h:206
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 5f c7 01 03 66 2e 0f 1f 84 00 00 00 00 00
RSP: 0018:ffffc90000006f30 EFLAGS: 00000046
RAX: 00000000000000e5 RBX: 00000000000000e5 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 00000000000000e5 RDI: 0000000000000838
RBP: 0000000000000000 R08: ffffffff8e2029ef R09: 1ffffffff1c4053d
R10: dffffc0000000000 R11: fffffbfff1c4053e R12: dffffc0000000000
R13: 0000000010002696 R14: ffffffff8c658b40 R15: dffffc0000000000
FS:  00007fe77c0176c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000007886c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 apic_write arch/x86/include/asm/apic.h:394 [inline]
 lapic_next_event+0x5b/0x70 arch/x86/kernel/apic/apic.c:478
 clockevents_program_event+0x1bc/0x310 kernel/time/clockevents.c:334
 hrtimer_interrupt+0x59d/0x9c0 kernel/time/hrtimer.c:1890
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1107 [inline]
 __sysvec_apic_timer_interrupt+0x153/0x5a0 arch/x86/kernel/apic/apic.c:1124
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0x4d/0xc0 arch/x86/kernel/apic/apic.c:1118
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:unwind_next_frame+0x418/0x20b0 arch/x86/kernel/unwind_orc.c:461
Code: 48 89 44 24 48 42 0f b6 04 28 84 c0 0f 85 72 16 00 00 4c 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 7d 16 00 00 0f b7 45 00 <41> 89 c7 41 83 e7 0f 66 41 83 ff 09 0f 87 b6 0d 00 00 42 ff 24 fd
RSP: 0018:ffffc900000071b0 EFLAGS: 00000246
RAX: 0000000000000015 RBX: ffffc90000007288 RCX: ffffffff8e806398
RDX: ffffffff8f186eca RSI: ffffffff8e806394 RDI: 0000000000000001
RBP: ffffffff8f186ece R08: 0000000000000001 R09: 0000000000000007
R10: dffffc0000000000 R11: fffff52000000e5d R12: ffffffff8f186eca
R13: dffffc0000000000 R14: ffffffff8e806394 R15: ffffffff8f186ecf
 arch_stack_walk+0x10c/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0xa6/0xf0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 ____kasan_kmalloc mm/kasan/common.c:375 [inline]
 __kasan_kmalloc+0x8e/0xa0 mm/kasan/common.c:384
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 __do_kmalloc_node mm/slab_common.c:936 [inline]
 __kmalloc_node+0xb0/0x240 mm/slab_common.c:943
 kmalloc_array_node include/linux/slab.h:676 [inline]
 kcalloc_node include/linux/slab.h:681 [inline]
 memcg_alloc_slab_cgroups+0x83/0x120 mm/memcontrol.c:2889
 account_slab mm/slab.h:635 [inline]
 allocate_slab mm/slub.c:1962 [inline]
 new_slab+0xc3/0x2c0 mm/slub.c:1997
 ___slab_alloc+0xbc6/0x1240 mm/slub.c:3154
 __slab_alloc mm/slub.c:3240 [inline]
 slab_alloc_node mm/slub.c:3325 [inline]
 slab_alloc mm/slub.c:3367 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3374 [inline]
 kmem_cache_alloc+0x1b7/0x2f0 mm/slub.c:3383
 dst_alloc+0x101/0x160 net/core/dst.c:88
 ip6_dst_alloc net/ipv6/route.c:345 [inline]
 icmp6_dst_alloc+0x7f/0x460 net/ipv6/route.c:3309
 ndisc_send_skb+0x424/0x14e0 net/ipv6/ndisc.c:493
 addrconf_rs_timer+0x2d1/0x630 net/ipv6/addrconf.c:3979
 call_timer_fn+0x1ac/0x670 kernel/time/timer.c:1701
 expire_timers kernel/time/timer.c:1752 [inline]
 __run_timers+0x53e/0x800 kernel/time/timer.c:2023
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:2036
 handle_softirqs+0x2a1/0x930 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:preempt_schedule_irq+0xb6/0x160 kernel/sched/core.c:6874
Code: 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 7f bf 01 00 00 00 e8 c5 f6 20 f7 e8 40 ee 50 f7 fb bf 01 00 00 00 <e8> 75 b9 ff ff 43 c6 44 37 08 00 48 c7 44 24 40 00 00 00 00 9c 8f
RSP: 0018:ffffc90002e86ca0 EFLAGS: 00000286
RAX: d24e2e41af32a000 RBX: 0000000000000000 RCX: d24e2e41af32a000
RDX: dffffc0000000000 RSI: ffffffff8a8c1aa0 RDI: 0000000000000001
RBP: ffffc90002e86d40 R08: ffffffff90aff24f R09: 1ffffffff215fe49
R10: dffffc0000000000 R11: fffffbfff215fe4a R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920005d0d94
 irqentry_exit+0x63/0x70 kernel/entry/common.c:439
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:put_cpu_partial+0x1b0/0x250 mm/slub.c:2666
Code: 3b 44 24 18 0f 85 b4 00 00 00 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 1c 4c 5c 08 f7 c5 00 02 00 00 74 c0 fb 4d 85 e4 <75> bf eb c8 e8 87 3a 3b 02 85 c0 0f 84 e9 fe ff ff 83 3d 40 54 4d
RSP: 0018:ffffc90002e86e08 EFLAGS: 00000246
RAX: d24e2e41af32a000 RBX: ffff888017442280 RCX: d24e2e41af32a000
RDX: dffffc0000000000 RSI: ffffffff8a8c1aa0 RDI: ffffffff8adf2060
RBP: 0000000000000282 R08: ffffffff90aff24f R09: 1ffffffff215fe49
R10: dffffc0000000000 R11: fffffbfff215fe4a R12: 0000000000000000
R13: 0000000000000000 R14: ffff88807c128000 R15: ffff8880b8e3e8d0
 qlink_free mm/kasan/quarantine.c:168 [inline]
 qlist_free_all+0x76/0xe0 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x144/0x160 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x1e/0x80 mm/kasan/common.c:306
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook+0x4b/0x480 mm/slab.h:737
 slab_alloc_node mm/slub.c:3359 [inline]
 slab_alloc mm/slub.c:3367 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3374 [inline]
 kmem_cache_alloc+0x123/0x2f0 mm/slub.c:3383
 fib_trie_unmerge+0x268/0xcd0 net/ipv4/fib_trie.c:1906
 fib_unmerge+0xbc/0x350 net/ipv4/fib_frontend.c:161
 fib4_rule_configure+0x114/0xb00 net/ipv4/fib_rules.c:242
 fib_nl_newrule+0x12cb/0x1db0 net/core/fib_rules.c:814
 rtnetlink_rcv_msg+0x87c/0xfc0 net/core/rtnetlink.c:6158
 netlink_rcv_skb+0x1fb/0x450 net/netlink/af_netlink.c:2511
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x74d/0x8d0 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x8ad/0xbd0 net/netlink/af_netlink.c:1872
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 ____sys_sendmsg+0x5be/0x970 net/socket.c:2518
 ___sys_sendmsg+0x2a2/0x360 net/socket.c:2572
 __sys_sendmsg net/socket.c:2601 [inline]
 __do_sys_sendmsg net/socket.c:2610 [inline]
 __se_sys_sendmsg+0x1bb/0x2a0 net/socket.c:2608
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe77b19ce59
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:00007fe77c017028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fe77b415fa0 RCX: 00007fe77b19ce59
RDX: 0000000000000844 RSI: 0000200000000000 RDI: 0000000000000006
RBP: 00007fe77b232d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe77b416038 R14: 00007fe77b415fa0 R15: 00007fff1c7e8788
 </TASK>