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BUG: KCSAN: data-race in kick_pool / wq_worker_running

read-write to 0xffff888237c29d64 of 4 bytes by task 3373 on cpu 0:
 wq_worker_running+0x95/0x120 kernel/workqueue.c:1404
 exp_funnel_lock kernel/rcu/tree_exp.h:334 [inline]
 synchronize_rcu_expedited+0x695/0x790 kernel/rcu/tree_exp.h:957
 synchronize_rcu+0x45/0x320 kernel/rcu/tree.c:3352
 key_garbage_collector+0x753/0x8c0 security/keys/gc.c:297
 process_one_work kernel/workqueue.c:3236 [inline]
 process_scheduled_works+0x4ce/0x9d0 kernel/workqueue.c:3319
 worker_thread+0x582/0x770 kernel/workqueue.c:3400
 kthread+0x486/0x510 kernel/kthread.c:463
 ret_from_fork+0xda/0x150 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

read to 0xffff888237c29d64 of 4 bytes by task 5194 on cpu 1:
 need_more_worker kernel/workqueue.c:938 [inline]
 kick_pool+0x49/0x2d0 kernel/workqueue.c:1244
 __queue_work+0x8cb/0xb50 kernel/workqueue.c:2340
 queue_work_on+0xd1/0x160 kernel/workqueue.c:2390
 __lru_add_drain_all+0x2c6/0x3f0 mm/swap.c:874
 lru_cache_disable+0x1f/0x30 mm/swap.c:925
 do_pages_move mm/migrate.c:2310 [inline]
 kernel_move_pages mm/migrate.c:2559 [inline]
 __do_sys_move_pages mm/migrate.c:2573 [inline]
 __se_sys_move_pages+0x2b2/0x1360 mm/migrate.c:2568
 __x64_sys_move_pages+0x78/0x90 mm/migrate.c:2568
 x64_sys_call+0x2f78/0x2ff0 arch/x86/include/generated/asm/syscalls_64.h:280
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd2/0x200 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x00000000 -> 0x00000001

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 5194 Comm: syz.3.291 Not tainted syzkaller #0 PREEMPT(voluntary) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
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