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BUG: KCSAN: data-race in __tmigr_cpu_activate / tmigr_handle_remote

write to 0xffff888237d205dc of 1 bytes by task 0 on cpu 1:
 __tmigr_cpu_activate+0x55/0x200 kernel/time/timer_migration.c:676
 tmigr_cpu_activate+0x8a/0xc0 kernel/time/timer_migration.c:699
 timer_clear_idle+0x28/0x100 kernel/time/timer.c:2381
 tick_nohz_restart_sched_tick+0x22/0x110 kernel/time/tick-sched.c:1095
 tick_nohz_idle_update_tick kernel/time/tick-sched.c:1426 [inline]
 tick_nohz_idle_exit+0xfe/0x1d0 kernel/time/tick-sched.c:1469
 do_idle+0x1ee/0x230 kernel/sched/idle.c:339
 cpu_startup_entry+0x25/0x30 kernel/sched/idle.c:424
 start_secondary+0x96/0xa0 arch/x86/kernel/smpboot.c:314
 common_startup_64+0x12c/0x137

read to 0xffff888237d205dc of 1 bytes by interrupt on cpu 0:
 tmigr_next_groupevt kernel/time/timer_migration.c:567 [inline]
 tmigr_next_expired_groupevt kernel/time/timer_migration.c:591 [inline]
 tmigr_handle_remote_up kernel/time/timer_migration.c:1014 [inline]
 __walk_groups kernel/time/timer_migration.c:533 [inline]
 tmigr_handle_remote+0x26e/0x940 kernel/time/timer_migration.c:1080
 run_timer_softirq+0x5f/0x70 kernel/time/timer.c:2453
 handle_softirqs+0xbf/0x280 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu kernel/softirq.c:637 [inline]
 irq_exit_rcu+0x3e/0x90 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline]
 sysvec_apic_timer_interrupt+0x73/0x80 arch/x86/kernel/apic/apic.c:1037
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
 console_flush_all+0x56b/0x770
 __console_flush_and_unlock kernel/printk/printk.c:3239 [inline]
 console_unlock+0xab/0x330 kernel/printk/printk.c:3279
 vprintk_emit+0x3f4/0x680 kernel/printk/printk.c:2407
 vprintk_default+0x26/0x30 kernel/printk/printk.c:2422
 vprintk+0x75/0x80 kernel/printk/printk_safe.c:68
 _printk+0x7a/0xa0 kernel/printk/printk.c:2432
 start_creating+0x207/0x230
 debugfs_create_dir+0x21/0x2b0 fs/debugfs/inode.c:593
 hsr_debugfs_init+0x36/0xe0 net/hsr/hsr_debugfs.c:81
 hsr_dev_finalize+0x554/0x580 net/hsr/hsr_device.c:680
 hsr_newlink+0x535/0x5e0 net/hsr/hsr_netlink.c:123
 rtnl_newlink_create net/core/rtnetlink.c:3510 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3730 [inline]
 rtnl_newlink+0xeff/0x1690 net/core/rtnetlink.c:3743
 rtnetlink_rcv_msg+0x6aa/0x710 net/core/rtnetlink.c:6646
 netlink_rcv_skb+0x12c/0x230 net/netlink/af_netlink.c:2550
 rtnetlink_rcv+0x1c/0x30 net/core/rtnetlink.c:6664
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x599/0x670 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x5cc/0x6e0 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg+0x140/0x180 net/socket.c:744
 __sys_sendto+0x1d6/0x260 net/socket.c:2209
 __do_sys_sendto net/socket.c:2221 [inline]
 __se_sys_sendto net/socket.c:2217 [inline]
 __x64_sys_sendto+0x78/0x90 net/socket.c:2217
 x64_sys_call+0x2959/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:45
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x00 -> 0x01

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 3263 Comm: syz-executor Not tainted 6.12.0-rc2-syzkaller-00074-gd3d1556696c1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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