loop3: detected capacity change from 0 to 1024
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BUG: KCSAN: data-race in fsnotify_detach_mark / inotify_handle_inode_event

write to 0xffff888103e70274 of 4 bytes by task 3447 on cpu 1:
 fsnotify_detach_mark+0xe1/0x190 fs/notify/mark.c:537
 fsnotify_destroy_mark+0x9a/0x1a0 fs/notify/mark.c:579
 __do_sys_inotify_rm_watch fs/notify/inotify/inotify_user.c:816 [inline]
 __se_sys_inotify_rm_watch+0xfd/0x180 fs/notify/inotify/inotify_user.c:793
 __x64_sys_inotify_rm_watch+0x31/0x40 fs/notify/inotify/inotify_user.c:793
 x64_sys_call+0x1d25/0x2e00 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 0xffff888103e70274 of 4 bytes by task 3552 on cpu 0:
 inotify_handle_inode_event+0x2c2/0x310 fs/notify/inotify/inotify_fsnotify.c:132
 fsnotify_handle_inode_event+0x18e/0x1f0 fs/notify/fsnotify.c:295
 fsnotify_handle_event fs/notify/fsnotify.c:347 [inline]
 send_to_group fs/notify/fsnotify.c:395 [inline]
 fsnotify+0x10ba/0x11a0 fs/notify/fsnotify.c:604
 __fsnotify_parent+0x285/0x380 fs/notify/fsnotify.c:261
 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+0x5ca/0x6f0 fs/file_table.c:408
 __fput_sync+0x44/0x60 fs/file_table.c:507
 __do_sys_close fs/open.c:1566 [inline]
 __se_sys_close+0x101/0x1b0 fs/open.c:1551
 __x64_sys_close+0x1f/0x30 fs/open.c:1551
 x64_sys_call+0x2630/0x2e00 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: 3552 Comm: syz.3.52 Not tainted 6.10.0-syzkaller-12830-gff30564411ff #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
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