loop4: detected capacity change from 0 to 512 ================================================================== BUG: KCSAN: data-race in fsnotify_event_needs_parent / fsnotify_put_mark write to 0xffff88810105a5a8 of 4 bytes by task 3535 on cpu 1: fsnotify_detach_connector_from_object fs/notify/mark.c:330 [inline] fsnotify_put_mark+0x2d8/0x5d0 fs/notify/mark.c:393 __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+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 0xffff88810105a5a8 of 4 bytes by task 6298 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+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: 0x00002008 -> 0x00000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 6298 Comm: syz.4.878 Not tainted 6.10.0-syzkaller-12710-g3a7e02c040b1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 ================================================================== EXT4-fs error (device loop4): ext4_xattr_ibody_find:2240: inode #15: comm syz.4.878: corrupted in-inode xattr: invalid ea_ino EXT4-fs error (device loop4): ext4_orphan_get:1396: comm syz.4.878: couldn't read orphan inode 15 (err -117) EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.