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BUG: KCSAN: data-race in __dentry_kill / d_set_d_op

read-write to 0xffff888113b24d80 of 4 bytes by task 3575 on cpu 1:
 d_set_d_op+0x15b/0x1f0 fs/dcache.c:1803
 simple_lookup+0x7c/0xa0 fs/libfs.c:79
 __lookup_slow+0x184/0x250 fs/namei.c:1718
 lookup_slow+0x3c/0x60 fs/namei.c:1735
 walk_component+0x1f5/0x230 fs/namei.c:2039
 lookup_last fs/namei.c:2542 [inline]
 path_lookupat+0x10a/0x2b0 fs/namei.c:2566
 filename_lookup+0x127/0x300 fs/namei.c:2595
 user_path_at+0x3c/0x110 fs/namei.c:3002
 inotify_find_inode fs/notify/inotify/inotify_user.c:377 [inline]
 __do_sys_inotify_add_watch fs/notify/inotify/inotify_user.c:776 [inline]
 __se_sys_inotify_add_watch+0x116/0x800 fs/notify/inotify/inotify_user.c:729
 __x64_sys_inotify_add_watch+0x43/0x50 fs/notify/inotify/inotify_user.c:729
 x64_sys_call+0x2acb/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:255
 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

read to 0xffff888113b24d80 of 4 bytes by task 3802 on cpu 0:
 dentry_unlist fs/dcache.c:580 [inline]
 __dentry_kill+0x2af/0x4c0 fs/dcache.c:624
 dput+0x5c/0xd0 fs/dcache.c:852
 handle_mounts fs/namei.c:1579 [inline]
 step_into+0x21a/0x810 fs/namei.c:1877
 walk_component+0x169/0x230 fs/namei.c:2045
 lookup_last fs/namei.c:2542 [inline]
 path_lookupat+0x10a/0x2b0 fs/namei.c:2566
 filename_lookup+0x127/0x300 fs/namei.c:2595
 user_path_at+0x3c/0x110 fs/namei.c:3002
 inotify_find_inode fs/notify/inotify/inotify_user.c:377 [inline]
 __do_sys_inotify_add_watch fs/notify/inotify/inotify_user.c:776 [inline]
 __se_sys_inotify_add_watch+0x116/0x800 fs/notify/inotify/inotify_user.c:729
 __x64_sys_inotify_add_watch+0x43/0x50 fs/notify/inotify/inotify_user.c:729
 x64_sys_call+0x2acb/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:255
 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: 0x10000000 -> 0x00000008

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 3802 Comm: udevd Not tainted 6.11.0-rc1-syzkaller-00293-gdefaf1a2113a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
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