BUG: KCSAN: data-race in d_delete / lookup_fast

read-write to 0xffff8881077d36c0 of 4 bytes by task 3373 on cpu 0:
 d_delete+0x6c/0xf0 fs/dcache.c:2388
 d_delete_notify+0x30/0xe0 include/linux/fsnotify.h:280
 vfs_unlink+0x305/0x3e0 fs/namei.c:4339
 do_unlinkat+0x236/0x4c0 fs/namei.c:4388
 __do_sys_unlink fs/namei.c:4436 [inline]
 __se_sys_unlink fs/namei.c:4434 [inline]
 __x64_sys_unlink+0x30/0x40 fs/namei.c:4434
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x59/0x120 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

read to 0xffff8881077d36c0 of 4 bytes by task 2763 on cpu 1:
 d_revalidate fs/namei.c:861 [inline]
 lookup_fast+0xd9/0x290 fs/namei.c:1642
 walk_component+0x3f/0x230 fs/namei.c:1997
 lookup_last fs/namei.c:2458 [inline]
 path_lookupat+0x10a/0x2a0 fs/namei.c:2482
 filename_lookup+0x126/0x300 fs/namei.c:2511
 user_path_at_empty+0x42/0x110 fs/namei.c:2910
 do_readlinkat+0x92/0x210 fs/stat.c:499
 __do_sys_readlink fs/stat.c:532 [inline]
 __se_sys_readlink fs/stat.c:529 [inline]
 __x64_sys_readlink+0x47/0x50 fs/stat.c:529
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x59/0x120 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

value changed: 0x00600108 -> 0x00008008

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 2763 Comm: udevd Not tainted 6.7.0-syzkaller-06264-g70d201a40823 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
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