EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000. ================================================================== BUG: KCSAN: data-race in fsnotify_detach_connector_from_object / fsnotify_event_needs_parent write to 0xffff888101226324 of 4 bytes by task 4642 on cpu 0: fsnotify_detach_connector_from_object+0xcc/0x280 fs/notify/mark.c:253 fsnotify_put_mark+0x198/0x3c0 fs/notify/mark.c:316 __do_sys_inotify_rm_watch fs/notify/inotify/inotify_user.c:819 [inline] __se_sys_inotify_rm_watch+0x105/0x180 fs/notify/inotify/inotify_user.c:793 __x64_sys_inotify_rm_watch+0x31/0x40 fs/notify/inotify/inotify_user.c:793 x64_sys_call+0x2735/0x2d30 arch/x86/include/generated/asm/syscalls_64.h:256 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff888101226324 of 4 bytes by task 4470 on cpu 1: fsnotify_event_needs_parent+0x47/0x100 fs/notify/fsnotify.c:161 __fsnotify_parent+0x178/0x370 fs/notify/fsnotify.c:208 fsnotify_parent include/linux/fsnotify.h:83 [inline] fsnotify_file include/linux/fsnotify.h:106 [inline] fsnotify_close include/linux/fsnotify.h:387 [inline] __fput+0x1ff/0x660 fs/file_table.c:408 __fput_sync+0x44/0x60 fs/file_table.c:507 __do_sys_close fs/open.c:1556 [inline] __se_sys_close+0x101/0x1b0 fs/open.c:1541 __x64_sys_close+0x1f/0x30 fs/open.c:1541 x64_sys_call+0x25b9/0x2d30 arch/x86/include/generated/asm/syscalls_64.h:4 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x00002008 -> 0x00000000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 4470 Comm: syz-executor.1 Not tainted 6.9.0-rc6-syzkaller-00005-gb947cc5bf6d7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 ==================================================================