syzbot

 loop1: p1 < > p4
loop1: p4 size 8388608 extends beyond EOD, truncated
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BUG: KCSAN: data-race in fsnotify_event_needs_parent / fsnotify_put_mark

write to 0xffff88810143d720 of 4 bytes by task 3255 on cpu 1:
 fsnotify_detach_connector_from_object fs/notify/mark.c:330 [inline]
 fsnotify_put_mark+0x2db/0x5d0 fs/notify/mark.c:393
 __do_sys_inotify_rm_watch fs/notify/inotify/inotify_user.c:819 [inline]
 __se_sys_inotify_rm_watch+0xf9/0x170 fs/notify/inotify/inotify_user.c:793
 __x64_sys_inotify_rm_watch+0x31/0x40 fs/notify/inotify/inotify_user.c:793
 x64_sys_call+0x1ae0/0x2d60 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 0xffff88810143d720 of 4 bytes by task 3523 on cpu 0:
 fsnotify_event_needs_parent+0x47/0x100 fs/notify/fsnotify.c:186
 __fsnotify_parent+0x178/0x380 fs/notify/fsnotify.c:233
 fsnotify_parent include/linux/fsnotify.h:96 [inline]
 fsnotify_file include/linux/fsnotify.h:131 [inline]
 fsnotify_close include/linux/fsnotify.h:412 [inline]
 __fput+0x5a6/0x6d0 fs/file_table.c:417
 __fput_sync+0x43/0x60 fs/file_table.c:516
 __do_sys_close fs/open.c:1565 [inline]
 __se_sys_close+0xf9/0x1a0 fs/open.c:1550
 __x64_sys_close+0x1f/0x30 fs/open.c:1550
 x64_sys_call+0x25cb/0x2d60 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: 0x00002008 -> 0x00000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 3523 Comm: syz.1.28 Not tainted 6.11.0-syzkaller-07983-g7856a565416e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
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