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BUG: KCSAN: data-race in __kernfs_remove / kernfs_iop_permission

read-write to 0xffff888151c9c3c0 of 8 bytes by task 5900 on cpu 1:
 kernfs_unlink_sibling fs/kernfs/dir.c:412 [inline]
 __kernfs_remove+0x2ee/0x440 fs/kernfs/dir.c:1467
 kernfs_remove+0x4e/0x70 fs/kernfs/dir.c:1503
 sysfs_remove_dir+0x7e/0xa0 fs/sysfs/dir.c:101
 __kobject_del+0x9d/0x1a0 lib/kobject.c:597
 kobject_del+0x2e/0x50 lib/kobject.c:620
 device_del+0x724/0x790 drivers/base/core.c:3823
 device_unregister+0x15/0x30 drivers/base/core.c:3844
 wakeup_source_sysfs_remove+0x25/0x30 drivers/base/power/wakeup_stats.c:208
 wakeup_source_unregister+0xee/0x110 drivers/base/power/wakeup.c:244
 __ep_remove+0x309/0x440 fs/eventpoll.c:763
 eventpoll_release_file+0x91/0x130 fs/eventpoll.c:966
 eventpoll_release include/linux/eventpoll.h:53 [inline]
 __fput+0x571/0x600 fs/file_table.c:375
 ____fput+0x15/0x20 fs/file_table.c:412
 task_work_run+0x135/0x1a0 kernel/task_work.c:179
 get_signal+0xe6a/0xff0 kernel/signal.c:2657
 arch_do_signal_or_restart+0x89/0x2a0 arch/x86/kernel/signal.c:308
 exit_to_user_mode_loop+0x6f/0xe0 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0x6c/0xb0 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x26/0x140 kernel/entry/common.c:297
 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffff888151c9c3c0 of 8 bytes by task 24028 on cpu 0:
 kernfs_refresh_inode fs/kernfs/inode.c:181 [inline]
 kernfs_iop_permission+0x165/0x1b0 fs/kernfs/inode.c:289
 do_inode_permission fs/namei.c:461 [inline]
 inode_permission+0x184/0x300 fs/namei.c:528
 may_lookup fs/namei.c:1720 [inline]
 link_path_walk+0x19e/0x7e0 fs/namei.c:2267
 path_openat+0x1a1/0x1d10 fs/namei.c:3789
 do_filp_open+0xf6/0x200 fs/namei.c:3820
 do_sys_openat2+0xab/0x110 fs/open.c:1407
 do_sys_open fs/open.c:1422 [inline]
 __do_sys_openat fs/open.c:1438 [inline]
 __se_sys_openat fs/open.c:1433 [inline]
 __x64_sys_openat+0xf3/0x120 fs/open.c:1433
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x0000000000000002 -> 0x0000000000000001

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 24028 Comm: udevd Not tainted 6.5.0-rc3-syzkaller-00123-g57012c57536f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
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