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BUG: KCSAN: data-race in fsnotify_detach_mark / inotify_handle_inode_event

write to 0xffff8881041e0724 of 4 bytes by task 7160 on cpu 1:
 fsnotify_detach_mark+0xba/0x160 fs/notify/mark.c:547
 fsnotify_destroy_mark+0x6e/0x140 fs/notify/mark.c:589
 __do_sys_inotify_rm_watch fs/notify/inotify/inotify_user.c:805 [inline]
 __se_sys_inotify_rm_watch+0xea/0x170 fs/notify/inotify/inotify_user.c:786
 __x64_sys_inotify_rm_watch+0x31/0x40 fs/notify/inotify/inotify_user.c:786
 x64_sys_call+0x25e0/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:256
 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 0xffff8881041e0724 of 4 bytes by task 6255 on cpu 0:
 inotify_handle_inode_event+0x313/0x3c0 fs/notify/inotify/inotify_fsnotify.c:132
 fsnotify_handle_inode_event+0x1bd/0x220 fs/notify/fsnotify.c:316
 fsnotify_handle_event fs/notify/fsnotify.c:371 [inline]
 send_to_group fs/notify/fsnotify.c:419 [inline]
 fsnotify+0x1187/0x1260 fs/notify/fsnotify.c:628
 __fsnotify_parent+0x2f5/0x340 fs/notify/fsnotify.c:282
 fsnotify_parent include/linux/fsnotify.h:96 [inline]
 fsnotify_path include/linux/fsnotify.h:113 [inline]
 fsnotify_file include/linux/fsnotify.h:127 [inline]
 fsnotify_close include/linux/fsnotify.h:456 [inline]
 __fput+0x1e7/0x640 fs/file_table.c:450
 __fput_sync+0x96/0xc0 fs/file_table.c:550
 __do_sys_close fs/open.c:1580 [inline]
 __se_sys_close fs/open.c:1565 [inline]
 __x64_sys_close+0x55/0xe0 fs/open.c:1565
 x64_sys_call+0x266c/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:4
 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: 0x00000003 -> 0x00000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 6255 Comm: syz-executor Tainted: G        W          6.14.0-rc5-syzkaller-00016-g48a5eed9ad58 #0
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
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